#LyX 2.0 created this file. For more info see http://www.lyx.org/ \lyxformat 413 \begin_document \begin_header \textclass scrbook \begin_preamble % DO NOT ALTER THIS PREAMBLE!!! % % This preamble is designed to ensure that this document prints % out as advertised. If you mess with this preamble, % parts of this document may not print out as expected. If you % have problems LaTeXing this file, please contact % the documentation team % email: lyx-docs@lists.lyx.org \usepackage{ifpdf} % part of the hyperref bundle \ifpdf % if pdflatex is used % set fonts for nicer pdf view \IfFileExists{lmodern.sty} {\usepackage{lmodern}}{} \fi % end if pdflatex is used % the pages of the TOC is numbered roman % and a pdf-bookmark for the TOC is added \let\myTOC\tableofcontents \renewcommand\tableofcontents{% \frontmatter \pdfbookmark[1]{\contentsname}{} \myTOC \mainmatter } \end_preamble \options fleqn,bibliography=totoc,index=totoc,BCOR7.5mm,titlepage,captions=tableheading \use_default_options false \begin_modules logicalmkup \end_modules \maintain_unincluded_children false \begin_local_layout Format 35 InsetLayout Flex:MenuItem LyxType charstyle LabelString menu LatexType command LatexName menuitem Font Family Sans EndFont Preamble \newcommand*{\menuitem}[1]{{\sffamily #1}} EndPreamble End # In case we need to do with sans... #InsetLayout CharStyle:Code #Font #Family Sans #EndFont #Preamble #\renewcommand{\code}[1]{{\sffamily #1}} #EndPreamble #End \end_local_layout \language english \language_package default \inputencoding auto \fontencoding global \font_roman default \font_sans default \font_typewriter default \font_default_family default \use_non_tex_fonts false \font_sc false \font_osf false \font_sf_scale 100 \font_tt_scale 100 \graphics default \default_output_format default \output_sync 0 \bibtex_command default \index_command default \paperfontsize 12 \spacing single \use_hyperref true \pdf_title "Customizing LyX" \pdf_author "LyX Team" \pdf_subject "LyX-documentation Customization" \pdf_keywords "LyX, documentation, customization" \pdf_bookmarks true \pdf_bookmarksnumbered true \pdf_bookmarksopen true \pdf_bookmarksopenlevel 1 \pdf_breaklinks false \pdf_pdfborder false \pdf_colorlinks true \pdf_backref false \pdf_pdfusetitle false \pdf_quoted_options "linkcolor=black, citecolor=black, urlcolor=blue, filecolor=blue,pdfpagelayout=OneColumn, pdfnewwindow=true, pdfstartview=XYZ, plainpages=false" \papersize default \use_geometry false \use_amsmath 0 \use_esint 0 \use_mhchem 0 \use_mathdots 1 \cite_engine basic \use_bibtopic false \use_indices false \paperorientation portrait \suppress_date false \use_refstyle 0 \branch OutDated \selected 0 \filename_suffix 0 \color #f5fae7 \end_branch \index Index \shortcut idx \color #008000 \end_index \secnumdepth 3 \tocdepth 3 \paragraph_separation indent \paragraph_indentation default \quotes_language english \papercolumns 1 \papersides 2 \paperpagestyle headings \tracking_changes false \output_changes false \html_math_output 0 \html_css_as_file 0 \html_be_strict true \end_header \begin_body \begin_layout Title Customizing LyX: Features for the Advanced User \end_layout \begin_layout Author by the LyX Team \begin_inset Foot status collapsed \begin_layout Plain Layout \noindent If you have comments or error corrections, please send them to the LyX Documenta tion mailing list, \begin_inset CommandInset href LatexCommand href target "lyx-docs@lists.lyx.org" type "mailto:" \end_inset . Include \begin_inset Quotes eld \end_inset [Customization] \begin_inset Quotes erd \end_inset in the subject header, and please cc the current maintainer of this file, Richard Heck . \end_layout \end_inset \begin_inset Newline newline \end_inset \begin_inset Newline newline \end_inset Version 2.0.x \end_layout \begin_layout Standard \begin_inset CommandInset toc LatexCommand tableofcontents \end_inset \end_layout \begin_layout Standard \begin_inset Note Note status open \begin_layout Plain Layout Please use change tracking when modifying this document. This makes it easier for our translators to recognize things that have been changed, and it helps the maintainer keep up-to-date with what's been done. \end_layout \end_inset \end_layout \begin_layout Chapter Introduction \end_layout \begin_layout Standard This manual covers the customization features present in LyX. In it, we discuss issues like keyboard shortcuts, screen previewing options, printer options, sending commands to LyX via the LyX Server, internationalizati on, installing new LaTeX classes and LyX layouts, etc. We can't possibly hope to touch on everything you can change—our developers add new features faster than we can document them—but we will explain the most common customizations and hopefully point you in the right direction for some of the more obscure ones. \end_layout \begin_layout Standard \begin_inset Branch OutDated status collapsed \begin_layout Standard Information from previous versions of this document that now seems to be outdated is contained in the OutDated branch of this document. By default, this information will not appear in the LaTeX output. \end_layout \end_inset \end_layout \begin_layout Chapter LyX configuration files \end_layout \begin_layout Standard This chapter aims to help you to find your way through the LyX configuration files. Before continuing to read this chapter, you should find out where your LyX library and user directories are by using \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Help\SpecialChar \menuseparator About \begin_inset space ~ \end_inset LyX \end_layout \end_inset . The library directory is the place where LyX places its system-wide configurati on files; the user directory is where you can place your modified versions. We will call the former \begin_inset Flex Code status collapsed \begin_layout Plain Layout LyXDir \end_layout \end_inset and the latter \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout UserDir \end_layout \end_inset in the remainder of this document. \end_layout \begin_layout Section What's in \begin_inset Flex Code status collapsed \begin_layout Plain Layout LyXDir \end_layout \end_inset ? \end_layout \begin_layout Standard \begin_inset Flex Code status collapsed \begin_layout Plain Layout LyXDir \end_layout \end_inset and its sub-directories contain a number of files that can be used to customize LyX's behavior. You can change many of these files from within LyX itself through the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Tools\SpecialChar \menuseparator Preferences \end_layout \end_inset dialog. Most customization that you will want to do in LyX is possible through this dialog. However, many other inner aspects of LyX can be customized by modifying the files in \begin_inset Flex Code status collapsed \begin_layout Plain Layout LyXDir \end_layout \end_inset . These files fall in different categories, described in the following subsection s. \end_layout \begin_layout Subsection Automatically generated files \end_layout \begin_layout Standard The files, which are to be found in \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout UserDir \end_layout \end_inset , are generated when you configure LyX. They contain various default values that are guessed by inspection. In general, it is not a good idea to modify them, since they might be overwritt en at any time. \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout lyxrc.defaults \end_layout \end_inset contains defaults for various commands. \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout packages.lst \end_layout \end_inset contains the list of packages that have been recognized by LyX. It is currently unused by the LyX program itself, but the information extracted , and more, is made available with \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Help\SpecialChar \menuseparator LaTeX \begin_inset space ~ \end_inset Configuration \end_layout \end_inset . \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout textclass.lst \end_layout \end_inset the list of text classes that have been found in your \begin_inset Flex Code status collapsed \begin_layout Plain Layout layout/ \end_layout \end_inset directories, along with the associated LaTeX document class and their descripti on. \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout lyxmodules.lst \end_layout \end_inset the list of layout modules found in your \begin_inset Flex Code status collapsed \begin_layout Plain Layout layout/ \end_layout \end_inset directories \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout *files.lst \end_layout \end_inset lists of various sorts of LaTeX-related files found on your system \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout doc/LaTeXConfig.lyx \end_layout \end_inset is automatically generated during configuration from the file \begin_inset Flex Code status collapsed \begin_layout Plain Layout LaTeXConfig.lyx.in \end_layout \end_inset . It contains information on your LaTeX configuration. \end_layout \begin_layout Subsection Directories \end_layout \begin_layout Standard These directories are duplicated between \begin_inset Flex Code status collapsed \begin_layout Plain Layout LyXDir \end_layout \end_inset and \begin_inset Flex Code status collapsed \begin_layout Plain Layout UserDir \end_layout \end_inset . If a particular files exists in both places, the one in \begin_inset Flex Code status collapsed \begin_layout Plain Layout UserDir \end_layout \end_inset will be used. \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout bind/ \end_layout \end_inset this directory contains files with the extension \begin_inset Flex Code status collapsed \begin_layout Plain Layout .bind \end_layout \end_inset that define the keybindings used in LyX. If there exists an internationalized version of the bind file named \begin_inset Flex Code status collapsed \begin_layout Plain Layout $LANG_xxx.bind \end_layout \end_inset , that will be used first. \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout clipart/ \end_layout \end_inset contains graphics files that can be included in documents. \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout doc/ \end_layout \end_inset contains LyX documentation files (including the one you are currently reading). The file \begin_inset Flex Code status collapsed \begin_layout Plain Layout LaTeXConfig.lyx \end_layout \end_inset deserves special attention, as noted above. The internationalized help docs are in subdirectories \begin_inset Flex Code status collapsed \begin_layout Plain Layout doc/xx \end_layout \end_inset where \begin_inset Quotes eld \end_inset xx \begin_inset Quotes erd \end_inset is the ISO language code. See chapter \begin_inset space ~ \end_inset \begin_inset CommandInset ref LatexCommand ref reference "cha:Internationalizing-LyX" \end_inset for details. \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout examples/ \end_layout \end_inset contains example files that explain how to use some features. In the file browser, press the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Examples \end_layout \end_inset button to get there. \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout images/ \end_layout \end_inset contains image files that are used by the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Document \end_layout \end_inset dialog. In addition, it also contains the individual icons used in the toolbar and the banners that can be shown when LyX is launched. \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout kbd/ \end_layout \end_inset contains keyboard keymapping files. See Chapter \begin_inset space ~ \end_inset \begin_inset CommandInset ref LatexCommand ref reference "sec:International-Keymap-Stuff" \end_inset for details. \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout layouts/ \end_layout \end_inset contains the text class and module files described in Chapter \begin_inset space ~ \end_inset \begin_inset CommandInset ref LatexCommand ref reference "cha:Installing-New-Document" \end_inset . \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout lyx2lyx/ \end_layout \end_inset contains the \begin_inset Flex Code status collapsed \begin_layout Plain Layout lyx2lyx \end_layout \end_inset Python scripts used to convert between LyX versions. These can be run from the command line if, say, you want to batch-convert files. \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout scripts/ \end_layout \end_inset contains some files that demonstrate the capabilities of the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout External \begin_inset space ~ \end_inset Template \end_layout \end_inset feature. Also contains some scripts used by LyX itself. \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout templates/ \end_layout \end_inset contains the standard LyX template files described in Chapter \begin_inset space ~ \end_inset \begin_inset CommandInset ref LatexCommand ref reference "sub:Creating-Templates" \end_inset . \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout ui/ \end_layout \end_inset contains files with the extension \begin_inset Flex Code status collapsed \begin_layout Plain Layout .ui \end_layout \end_inset that define the user interface to LyX. That is, the files define which items appear in which menus and the items appearing on the toolbar. \end_layout \begin_layout Subsection Files you don't want to modify \end_layout \begin_layout Standard These files are used internally by LyX and you generally do not need to modify them unless you are a developer. \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout CREDITS \end_layout \end_inset this file contains the list of LyX developers. The contents are displayed with the menu entry \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Help\SpecialChar \menuseparator About \begin_inset space ~ \end_inset LyX \end_layout \end_inset . \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout chkconfig.ltx \end_layout \end_inset this is a LaTeX script used during the configuration process. Do not run directly. \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout configure.py \end_layout \end_inset this is the script that is used to re-configure LyX. It creates configuration files in the directory it was run from. \end_layout \begin_layout Subsection Other files needing a line or two... \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout encodings \end_layout \end_inset this contains tables describing how different character encodings can be mapped to Unicode. \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout external_templates \end_layout \end_inset this file contains the templates available to the new \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout External \begin_inset space ~ \end_inset Template \end_layout \end_inset feature. \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout languages \end_layout \end_inset this file contains a list of all the languages currently supported by LyX. \end_layout \begin_layout Section Your local configuration directory \end_layout \begin_layout Standard Even if you are using LyX as an unprivileged user, you might want to change LyX configuration for your own use. The \begin_inset Flex Code status collapsed \begin_layout Plain Layout UserDir \end_layout \end_inset directory contains all your personal configuration files. This is the directory described as \begin_inset Quotes eld \end_inset user directory \begin_inset Quotes erd \end_inset in \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Help\SpecialChar \menuseparator About \begin_inset space ~ \end_inset LyX \end_layout \end_inset . This directory is used as a mirror of \begin_inset Flex Code status collapsed \begin_layout Plain Layout LyXDir \end_layout \end_inset , which means that every file in \begin_inset Flex Code status collapsed \begin_layout Plain Layout UserDir \end_layout \end_inset is a replacement for the corresponding file in \begin_inset Flex Code status collapsed \begin_layout Plain Layout LyXDir \end_layout \end_inset . Any configuration file described in the above sections can be placed either in the system-wide directory, in which case it will affect all users, or in your local directory for your own use. \end_layout \begin_layout Standard To make things clearer, let's provide a few examples: \end_layout \begin_layout Itemize The preferences set in the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Tools\SpecialChar \menuseparator Preferences \end_layout \end_inset dialog are saved to a file \begin_inset Flex Code status collapsed \begin_layout Plain Layout preferences \end_layout \end_inset in \begin_inset Flex Code status collapsed \begin_layout Plain Layout UserDir \end_layout \end_inset . \end_layout \begin_layout Itemize When you reconfigure using \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Tools\SpecialChar \menuseparator Reconfigure \end_layout \end_inset , LyX runs the \begin_inset Flex Code status collapsed \begin_layout Plain Layout configure.py \end_layout \end_inset script, and the resulting files are written in your local configuration directory. This means that any additional text class file that you might have added in \begin_inset Flex Code status collapsed \begin_layout Plain Layout UserDir/layouts \end_layout \end_inset will be added to the list of classes in the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Document\SpecialChar \menuseparator Settings \end_layout \end_inset dialog. \end_layout \begin_layout Itemize If you get some updated documentation from the LyX ftp site and cannot install it because you do not have sysadmin rights on your system, you can just copy the files to \begin_inset Flex Code status collapsed \begin_layout Plain Layout UserDir/doc/ \end_layout \end_inset and the items in the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Help \end_layout \end_inset menu will open them! \end_layout \begin_layout Section Running LyX with multiple configurations \end_layout \begin_layout Standard The configuration freedom of the local configuration directory may not suffice if you want to have more than one configuration at your disposal. For example, you may want to use different key bindings or printer settings at different times. You can achieve this by having several such directories. You then specify which directory to use at run-time. \end_layout \begin_layout Standard Invoking LyX with the command line switch \begin_inset Flex Code status collapsed \begin_layout Plain Layout -userdir \end_layout \end_inset \emph on \emph default instructs the program to read the configuration from that directory, and not from the default directory. (You can determine the default directory by running LyX without the \begin_inset Flex Code status collapsed \begin_layout Plain Layout -userdir \end_layout \end_inset switch.) If the specified directory does not exist, LyX offers to create it for you, just like it does for the default directory on the first time you run the program. You can modify the configuration options in this additional user directory exactly as you would for the default directory. These directories are completely independent (but read on). Note that setting the environment variable \begin_inset Flex Code status collapsed \begin_layout Plain Layout LYX_USERDIR_20x \end_layout \end_inset to some value has exactly the same effect. \end_layout \begin_layout Standard Having several configurations also requires more maintenance: if you want to add a new layout to \begin_inset Flex Code status collapsed \begin_layout Plain Layout NewUserDir/layouts \end_layout \end_inset which you want available from all your configurations, you must add it to each directory separately. You can avoid this with the following trick: after LyX creates the additional directory, most of the subdirectories (see above) are empty. If you want the new configuration to mirror an existing one, replace the empty subdirectory with a symbolic link to the matching subdirectory in the existing configuration. Take care with the \begin_inset Flex Code status collapsed \begin_layout Plain Layout doc/ \end_layout \end_inset subdirectory, however, since it contains a file written by the configuration script (also accessible through \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Tools\SpecialChar \menuseparator Reconfigure \end_layout \end_inset ) which is configuration-specific. \end_layout \begin_layout Chapter The Preferences dialog \end_layout \begin_layout Standard All options of the preferences dialog are described in the Appendix \emph on The Preferences Dialog \emph default in the \emph on User's Guide \emph default . For some options you might find more details here. \end_layout \begin_layout Section Formats \begin_inset CommandInset label LatexCommand label name "sec:Formats" \end_inset \end_layout \begin_layout Standard The first step is to define your file formats if they are not already defined. To do so, open the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Tools\SpecialChar \menuseparator Preferences \end_layout \end_inset dialog. Under \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout File Handling\SpecialChar \menuseparator File formats \end_layout \end_inset press the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout New\SpecialChar \ldots{} \end_layout \end_inset button to define your new format. The \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Format \end_layout \end_inset field contains the name used to identify the format in the GUI. The \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Short Name \end_layout \end_inset is used to identify the format internally. You will also need to enter a file extension. These are all required. The optional \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Shortcut \end_layout \end_inset field is used to provide a keyboard shortcut on the menus. (For example, pressing \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Alt-V F D \end_layout \end_inset will \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout View\SpecialChar \menuseparator View (Other Formats)\SpecialChar \menuseparator DVI \end_layout \end_inset .) \end_layout \begin_layout Standard A Format can have a \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Viewer \end_layout \end_inset and an \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Editor \end_layout \end_inset associated with it. For example, you might want to use \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Ghostview \end_layout \end_inset to view PostScript files. You can enter the command needed to start the program in the corresponding fields. In defining this command, you can use the four variables listed in the next section. The viewer is launched when you view an image in LyX or use the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout View \end_layout \end_inset menu. The editor is for example launched when you right-click on an image and choose \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Edit externally \end_layout \end_inset in the appearing context menu. \end_layout \begin_layout Standard The \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Document format \end_layout \end_inset option tells LyX that a format is suitable for document export. If this is set and if a suitable conversion route exists (see sec. \begin_inset space \thinspace{} \end_inset \begin_inset CommandInset ref LatexCommand ref reference "sec:Converters" \end_inset ), the format will appear in the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout File\SpecialChar \menuseparator Export \end_layout \end_inset menu. The format will also appear in the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout View \end_layout \end_inset menu if a viewer is specified for the format. Pure image formats, such as \begin_inset Flex Code status collapsed \begin_layout Plain Layout png \end_layout \end_inset , should not use this option. Formats that can both represent vector graphics and documents like \begin_inset Flex Code status collapsed \begin_layout Plain Layout pdf \end_layout \end_inset should use it. \end_layout \begin_layout Standard The option \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Vector graphics format \end_layout \end_inset tells LyX that a format can contain vector graphics. This information is used to determine the target format of included graphics for \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout pdflatex \end_layout \end_inset export. Included graphics may need to be converted to either \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout pdf \end_layout \end_inset , \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout png \end_layout \end_inset , or \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout jpg \end_layout \end_inset , since \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout pdflatex \end_layout \end_inset cannot handle other image formats. If an included graphic is not already in \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout pdf \end_layout \end_inset , \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout png \end_layout \end_inset , or \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout jpg \end_layout \end_inset format, it is converted to \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout pdf \end_layout \end_inset if the vector format option is set, and otherwise to \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout png \end_layout \end_inset . \end_layout \begin_layout Section Copiers \end_layout \begin_layout Standard Since all conversions from one format to another take place in LyX's temporary directory, it is sometimes necessary to modify a file before copying it to the temporary directory in order that the conversion may be performed. \begin_inset Foot status collapsed \begin_layout Plain Layout For example, the file may refer to other files—images, for example—using relative file names, and these may become invalid when the file is copied to the temporary directory. \end_layout \end_inset This is done by a Copier: It copies a file to (or from) the temporary directory and may modify it in the process. \end_layout \begin_layout Standard The definitions of the copiers may use four variables: \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout $$s \end_layout \end_inset The LyX system directory (e. \begin_inset space \thinspace{} \end_inset g. \begin_inset space \space{} \end_inset \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout /usr/share/lyx \end_layout \end_inset ). \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout $$i \end_layout \end_inset The input file \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout $$o \end_layout \end_inset The output file \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout $$l \end_layout \end_inset The `LaTeX name' \end_layout \begin_layout Standard The latter should be the filename as it would be used in a LaTeX's \series bold \backslash include \series default command. It is relevant only when exporting files suitable for such inclusion. \end_layout \begin_layout Standard Copiers can be used to do almost anything with output files. For example, suppose you want generated pdf files to be copied to a special directory, \begin_inset Flex Code status collapsed \begin_layout Plain Layout /home/you/pdf/ \end_layout \end_inset . Then you could write a shell script such as this one: \end_layout \begin_layout Standard \begin_inset listings inline false status open \begin_layout Plain Layout #!/bin/bash \end_layout \begin_layout Plain Layout FROMFILE=$1 \end_layout \begin_layout Plain Layout TOFILE=`basename $2` \end_layout \begin_layout Plain Layout cp $FROMFILE /home/you/pdf/$TOFILE \end_layout \end_inset Save it in your local LyX directory—say, \begin_inset Flex Code status collapsed \begin_layout Plain Layout /home/you/.lyx/scripts/pdfcopier.sh \end_layout \end_inset —and make it executable, if you need to do so on your platform. Then, in the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Tools\SpecialChar \menuseparator Preferences \end_layout \end_inset dialog, select under \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout File Handling\SpecialChar \menuseparator File formats \end_layout \end_inset the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout PDF(pdflatex) \end_layout \end_inset format—or one of the other pdf formats—and enter \begin_inset Flex Code status collapsed \begin_layout Plain Layout pdfcopier.sh $$i $$o \end_layout \end_inset into the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Copier \end_layout \end_inset field. \end_layout \begin_layout Standard Copiers are used by LyX in various of its own conversions. For example, if appropriate programs are found, LyX will automatically install copiers for the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout HTML \end_layout \end_inset and \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout HTML \begin_inset space ~ \end_inset (MS Word) \end_layout \end_inset formats. When these formats are exported, the copier sees that not just the main HTML file but various associated files (style files, images, etc.) are also copied. All these files are written to a subdirectory of the directory in which the original LyX file was found. \begin_inset Foot status collapsed \begin_layout Plain Layout This copier can be customized. The optional \begin_inset Quotes eld \end_inset -e \begin_inset Quotes erd \end_inset argument takes a comma-separated list of extensions to be copied; if it is omitted, all files will be copied. The \begin_inset Quotes eld \end_inset -t \begin_inset Quotes erd \end_inset argument determines the extension added to the generated directory. By default, it is \begin_inset Quotes eld \end_inset \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout LyXconv \end_layout \end_inset \begin_inset Quotes erd \end_inset , so HTML generated from \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout /path/to/filename.lyx \end_layout \end_inset will end up in \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout /path/to/filename.html.LyXconv \end_layout \end_inset . \end_layout \end_inset \end_layout \begin_layout Section Converters \begin_inset CommandInset label LatexCommand label name "sec:Converters" \end_inset \end_layout \begin_layout Standard You can define your own Converters to convert files between different formats. This is done in the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Tools\SpecialChar \menuseparator Preferences\SpecialChar \menuseparator File Handling\SpecialChar \menuseparator Converters \end_layout \end_inset dialog. \end_layout \begin_layout Standard To define a new converter, select the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout From \begin_inset space ~ \end_inset format \end_layout \end_inset and \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout To \begin_inset space ~ \end_inset format \end_layout \end_inset from the drop-down lists, enter the command needed for the conversion, and then press the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Add \end_layout \end_inset button. Several variables can be used in the definition of converters: \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout $$s \end_layout \end_inset The LyX system directory \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout $$i \end_layout \end_inset The input file \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout $$o \end_layout \end_inset The output file \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout $$b \end_layout \end_inset The base filename of the input file (i. \begin_inset space \thinspace{} \end_inset g., without the extension) \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout $$p \end_layout \end_inset The path to the input file \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout $$r \end_layout \end_inset The path to the original input file (this is different from $$p when a chain of converters is called) \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout $$e \end_layout \end_inset The iconv name for the encoding of the document. \end_layout \begin_layout Standard In the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Extra \begin_inset space ~ \end_inset Flag \end_layout \end_inset field you can enter the following flags, separated by commas: \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout latex \end_layout \end_inset This converter runs some form of LaTeX. This will make LyX's LaTeX error logs available. \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout needaux \end_layout \end_inset Needs the LaTeX \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout .aux \end_layout \end_inset file for the conversion. \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout xml \end_layout \end_inset Output is XML. \end_layout \begin_layout Standard The following three flags are not really flags at all because they take an argument in the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout key \begin_inset space ~ \end_inset = \begin_inset space ~ \end_inset value \end_layout \end_inset format: \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout parselog \end_layout \end_inset If set, the converter's standard error will be redirected to a file \begin_inset Flex Code status collapsed \begin_layout Plain Layout infile.out \end_layout \end_inset , and the script given as argument will be run as: \begin_inset Flex Code status collapsed \begin_layout Plain Layout script < infile.out > infile.log \end_layout \end_inset . The argument may contain \begin_inset Flex Code status collapsed \begin_layout Plain Layout $$s \end_layout \end_inset . \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout resultdir \end_layout \end_inset The name of the directory in which the converter will dump the generated files. LyX will not create this directory, and it does not copy anything into it, though it will copy this directory to the destination. The argument may contain \begin_inset Flex Code status collapsed \begin_layout Plain Layout $$b \end_layout \end_inset , which will be replaced by the base name of the input and output files, respectively, when the directory is copied. \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout resultfile \end_layout \end_inset Determines the output file name and may contain \begin_inset Flex Code status collapsed \begin_layout Plain Layout $$b \end_layout \end_inset . Sensible only with resultdir and optional even then; if not given, it defaults to `index'. \end_layout \begin_layout Standard None of these last three is presently used in any of the converters that are installed with LyX. \end_layout \begin_layout Standard You do not have to define converters for all formats between which you want to convert. For example, you will note that there is no `LyX to PostScript' converter, but LyX will export PostScript. It does so by first creating a LaTeX file (no converter needs to be defined for this) which is then converted to DVI using the `LaTeX to DVI' converter, and finally converting the resulting DVI file to PostScript. LyX finds such `chains' of converters automatically, and it will always choose the shortest possible chain. You can, though, still define multiple conversion methods between file formats. For example, the standard LyX configuration provides three ways to convert LaTeX to PDF: Directly, using \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout pdflatex \end_layout \end_inset ; via (DVI and) PostScript, using \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout ps2pdf \end_layout \end_inset ; or via DVI, using \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout dvipdfm \end_layout \end_inset . To define such alternate chains, you must define multiple target `file formats', as described in section \begin_inset CommandInset ref LatexCommand ref reference "sec:Formats" \end_inset . For example, in the standard configuration, the formats named \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout pdf \end_layout \end_inset , \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout pdf2 \end_layout \end_inset , and \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout pdf3 \end_layout \end_inset are defined, all of which share the extension \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout .pdf \end_layout \end_inset , and which correspond to the conversion methods just mentioned. \end_layout \begin_layout Chapter Internationalizing LyX \begin_inset CommandInset label LatexCommand label name "cha:Internationalizing-LyX" \end_inset \end_layout \begin_layout Standard LyX supports using a translated interface. Last time we checked, LyX provided text in thirty languages. The language of choice is called your \emph on locale \emph default . (For further reading on locale settings, see also the documentation for locale that comes with your operating system. For Linux, the manual page for \begin_inset Flex Code status collapsed \begin_layout Plain Layout locale(5) \end_layout \end_inset could be a good place to start). \end_layout \begin_layout Standard Notice that these translations will work, but do contain a few flaws. In particular, all dialogs have been designed with the English text in mind, which means that some of the translated text will be too large to fit within the space allocated. This is only a display problem and will not cause any harm. Also, you will find that some of the translations do not define shortcut keys for everything. Sometimes, there are simply not enough free letters to do it. Other times, the translator just hasn't got around to doing it yet. Our localization team, which you may wish to join, \begin_inset Foot status collapsed \begin_layout Plain Layout If you are a fluent speaker of a language other than English, joining these teams is a great way to give back to the LyX community! \end_layout \end_inset will of course try to fix these shortcomings in future versions of LyX. \end_layout \begin_layout Section Translating LyX \end_layout \begin_layout Subsection Translating the graphical user interface (text messages). \end_layout \begin_layout Standard LyX uses the GNU \begin_inset Flex Code status collapsed \begin_layout Plain Layout gettext \end_layout \end_inset library to handle the internationalization of the interface. To have LyX speak your favorite language in all menus and dialogs, you need a \begin_inset Flex Code status collapsed \begin_layout Plain Layout po \end_layout \end_inset -file for that language. When this is available, you'll have to generate a \begin_inset Flex Code status collapsed \begin_layout Plain Layout mo \end_layout \end_inset -file from it and install the \begin_inset Flex Code status collapsed \begin_layout Plain Layout mo \end_layout \end_inset -file. The process of doing all of this is explained in the documentation for GNU \begin_inset Flex Code status collapsed \begin_layout Plain Layout gettext \end_layout \end_inset . It is possible to do this just for yourself, but if you're going to do it, you might as well share the results of your labors with the rest of the LyX community. Send a message to the LyX developers' list for more information about how to proceed. \end_layout \begin_layout Standard In short, this is what you should do (xx denotes the language code): \end_layout \begin_layout Itemize Check out the LyX source code. (See the \begin_inset CommandInset href LatexCommand href name "information on the web" target "http://www.lyx.org/HowToUseSVN" \end_inset .) \end_layout \begin_layout Itemize Copy the file \begin_inset Flex Code status collapsed \begin_layout Plain Layout lyx.pot \end_layout \end_inset to the folder of the \begin_inset Flex Code status collapsed \begin_layout Plain Layout **.po \end_layout \end_inset files. Then rename it to \begin_inset Flex Code status collapsed \begin_layout Plain Layout xx.po \end_layout \end_inset . (If \begin_inset Flex Code status collapsed \begin_layout Plain Layout lyx.pot \end_layout \end_inset doesn't exist anywhere, it can be remade with the console command \begin_inset Flex Code status collapsed \begin_layout Plain Layout make lyx.pot \end_layout \end_inset in that directory, or you can use an existing po-file for some other language as a template). \end_layout \begin_layout Itemize Edit \begin_inset Flex Code status collapsed \begin_layout Plain Layout xx.po \end_layout \end_inset . \begin_inset Foot status collapsed \begin_layout Plain Layout This is just a text file, so it can be edited in any text editor. But there are also specialized programs that support such editing, such as \family typewriter Poedit \family default (for all platforms) or \family typewriter KBabel \family default (for KDE). \family typewriter Emacs \family default contains a `mode' for editing \begin_inset Flex Code status collapsed \begin_layout Plain Layout po \end_layout \end_inset files, as well. \end_layout \end_inset For some menu- and widget-labels, there are also shortcut keys that should be translated. Those keys are marked after a `|', and should be translated according to the words and phrases of the language. You should also fill also out the information at the beginning of the new \begin_inset Flex Code status collapsed \begin_layout Plain Layout po \end_layout \end_inset -file with your email-address, etc., so people know where to reach you with suggestions and entertaining flames. \end_layout \begin_layout Standard If you are just doing this on your own, then: \end_layout \begin_layout Itemize Generate \begin_inset Flex Code status collapsed \begin_layout Plain Layout xx.mo \end_layout \end_inset . This can be done with \begin_inset Flex Code status collapsed \begin_layout Plain Layout msgfmt -o xx.mo < xx.po \end_layout \end_inset . \end_layout \begin_layout Itemize Copy the \begin_inset Flex Code status collapsed \begin_layout Plain Layout mo \end_layout \end_inset -file to your locale-tree, at the correct directory for application messages for the language \series bold \series default xx, and under the name \begin_inset Flex Code status collapsed \begin_layout Plain Layout lyx.mo \end_layout \end_inset (e. \begin_inset space \thinspace{} \end_inset g. \begin_inset space \space{} \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout /usr/local/share/locale/xx/LC_MESSAGES/lyx.mo \end_layout \end_inset \series bold . \end_layout \begin_layout Standard As said, however, it would be best if the new \begin_inset Flex Code status collapsed \begin_layout Plain Layout po \end_layout \end_inset -file could be added to the LyX distribution, so others can use it. Adding it involves making additional changes to LyX. So send an email to the developers' mailing list if you're interested in doing that. \end_layout \begin_layout Subsubsection Ambiguous messages \end_layout \begin_layout Standard Sometimes it turns out that one English message needs to be translated into different messages in the target language. One example is the message \begin_inset Flex Code status collapsed \begin_layout Plain Layout To \end_layout \end_inset which has the German translation \lang german Nach \lang english or \lang german Bis \lang english , depending upon exactly what the English \begin_inset Quotes eld \end_inset to \begin_inset Quotes erd \end_inset means. GNU \begin_inset Flex Code status collapsed \begin_layout Plain Layout gettext \end_layout \end_inset does not handle such ambiguous translations. Therefore you have to add some context information to the message: Instead of \begin_inset Flex Code status collapsed \begin_layout Plain Layout To \end_layout \end_inset it becomes \begin_inset Flex Code status collapsed \begin_layout Plain Layout To[[as in 'From format x to format y']] \end_layout \end_inset and \begin_inset Flex Code status collapsed \begin_layout Plain Layout To[[as in 'From page x to page y']]. \end_layout \end_inset Now the two occurrences of \begin_inset Flex Code status collapsed \begin_layout Plain Layout To \end_layout \end_inset are different for \begin_inset Flex Code status collapsed \begin_layout Plain Layout gettext \end_layout \end_inset and can be translated correctly to \lang german Nach \lang english and \lang german Bis \lang english , respectively. \end_layout \begin_layout Standard Of course the context information needs to be stripped off the original message when no translation is used. Therefore you have to put it in double square brackets at the end of the message (see the example above). The translation mechanism of LyX ensures that everything in double square brackets at the end of messages is removed before displaying the message. \end_layout \begin_layout Subsection Translating the documentation. \end_layout \begin_layout Standard The online documentation (in the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Help \end_layout \end_inset -menu) can (and should!) be translated. If there are translated versions of the documentation available \begin_inset Foot status collapsed \begin_layout Plain Layout As of March 2008, at least some of the documents have been translated into fourteen languages, with the Tutorial available in a few more. \end_layout \end_inset and the locale is set accordingly, these will be used automagically by LyX. LyX looks for translated versions as \begin_inset Flex Code status collapsed \begin_layout Plain Layout LyXDir/doc/xx/DocName.lyx \end_layout \end_inset , where \begin_inset Flex Code status collapsed \begin_layout Plain Layout xx \end_layout \end_inset is the code for the language currently in use. If there are no translated documents, the default English versions will be displayed. Note that the translated versions must have the same filenames ( \begin_inset Flex Code status collapsed \begin_layout Plain Layout DocName \end_layout \end_inset above) as the original. If you feel up to translating the documentation (an excellent way to proof-read the original documentation by the way!), there are a few things you should do right away: \end_layout \begin_layout Itemize Check out the documentation translation web page at \begin_inset CommandInset href LatexCommand href name "http://www.lyx.org/Translation" target "http://www.lyx.org/Translation" \end_inset . That way, you can find out which (if any) documents have already been translate d into your language. You can also find out who (if anyone) is organizing the effort to translate the documentation into your language. If no one is organizing the effort, please let us know that you're interested. \end_layout \begin_layout Standard Once you get to actually translating, here's a few hints for you that may save you trouble: \end_layout \begin_layout Itemize Join the documentation team! There is information on how to do that in \begin_inset Flex Code status collapsed \begin_layout Plain Layout Intro.lyx \end_layout \end_inset ( \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Help\SpecialChar \menuseparator Introduction \end_layout \end_inset ), which by the way is the first document you should translate. \end_layout \begin_layout Itemize Learn the typographic conventions for the language you are translating to. Typography is an ancient art and over the centuries, a great variety of conventions have developed throughout different parts of the world. Also study the professional terminology amongst typographers in your country. Inventing your own terminology will only confuse the users. \emph on (Warning! Typography is addictive!) \end_layout \begin_layout Itemize Make a copy of the document. This will be your working copy. You can use this as your personal translated help-file by placing it in your \begin_inset Flex Code status collapsed \begin_layout Plain Layout UserDir/doc/xx/ \end_layout \end_inset directory. \end_layout \begin_layout Itemize Sometimes the original document (from the LyX-team) will be updated. Use the source viewer at \begin_inset CommandInset href LatexCommand href name "http://www.lyx.org/trac/timeline" target "http://www.lyx.org/trac/timeline" \end_inset to see what has been changed. That way you can easily see which parts of the translated document need to be updated. \end_layout \begin_layout Standard If you ever find an error in the original document, fix it and notify the rest of the documentation team of the changes! (You didn't forget to join the documentation team, did you?) \end_layout \begin_layout Standard \begin_inset Branch OutDated status collapsed \begin_layout Section International Keyboard Support \end_layout \begin_layout Standard \emph on [Editor's Note: The following section is by \emph default \shape smallcaps \emph on Ivan Schreter \shape default . It needs to be fixed to conform to the new Documentation Style sheet and to make use of the new v1.0 features. The whole thing also needs to be merged with the section following it.-jw It may also be badly out of date.-rh (2008)] \end_layout \begin_layout Subsection Defining Own Keymaps: Keymap File Format \end_layout \begin_layout Standard Let's look at a keyboard definition file a little closer. It is a plain text file defining \end_layout \begin_layout Itemize key-to-key or key-to-string translations \end_layout \begin_layout Itemize dead keys \end_layout \begin_layout Itemize dead keys exceptions \end_layout \begin_layout Standard To define key-to-key or key-to-string translation, use this command: \end_layout \begin_layout Quotation \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash kmap \end_layout \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout key \end_layout \end_inset outstring \end_layout \begin_layout Standard where \begin_inset Flex Code status collapsed \begin_layout Plain Layout key \end_layout \end_inset is the key to be translated and \begin_inset Flex Code status collapsed \begin_layout Plain Layout outstring \end_layout \end_inset is the string to be inserted into the document. To define dead keys, use: \end_layout \begin_layout Quotation \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash kmod \end_layout \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout key \end_layout \end_inset deadkey \end_layout \begin_layout Standard where \begin_inset Flex Code status collapsed \begin_layout Plain Layout key \end_layout \end_inset is a keyboard key and \begin_inset Flex Code status collapsed \begin_layout Plain Layout deadkey \end_layout \end_inset is dead key name. The following dead keys are supported (shortcut name is in parentheses): \end_layout \begin_layout Quotation \emph on Name \begin_inset space \hfill{} \end_inset Example \end_layout \begin_layout Quotation acute (acu) \begin_inset space \hfill{} \end_inset áéíóú \end_layout \begin_layout Quotation grave (gra) \begin_inset space \hfill{} \end_inset àèìòù \end_layout \begin_layout Quotation macron (mac) \begin_inset space \hfill{} \end_inset ō \end_layout \begin_layout Quotation tilde (til) \begin_inset space \hfill{} \end_inset ñÑ \end_layout \begin_layout Quotation underbar (underb) \begin_inset space \hfill{} \end_inset \begin_inset ERT status open \begin_layout Plain Layout \backslash b o \end_layout \end_inset \end_layout \begin_layout Quotation cedilla (ced) \begin_inset space \hfill{} \end_inset çÇ \end_layout \begin_layout Quotation underdot (underd) \begin_inset space \hfill{} \end_inset \begin_inset ERT status open \begin_layout Plain Layout \backslash d o \end_layout \end_inset \end_layout \begin_layout Quotation circumflex (circu) \begin_inset space \hfill{} \end_inset âêîôû \end_layout \begin_layout Quotation circle (circl) \begin_inset space \hfill{} \end_inset ÅůŮ \end_layout \begin_layout Quotation tie (tie) \begin_inset space \hfill{} \end_inset \begin_inset ERT status open \begin_layout Plain Layout \backslash t o \end_layout \end_inset \end_layout \begin_layout Quotation breve (bre) \begin_inset space \hfill{} \end_inset ă \begin_inset ERT status open \begin_layout Plain Layout \backslash u o \end_layout \end_inset \end_layout \begin_layout Quotation caron (car) \begin_inset space \hfill{} \end_inset čšž \end_layout \begin_layout Quotation hungarian umlaut (hug) \begin_inset space \hfill{} \end_inset őű \end_layout \begin_layout Quotation umlaut (uml) \begin_inset space \hfill{} \end_inset äöü \end_layout \begin_layout Quotation dot (dot) \begin_inset space \hfill{} \end_inset ż \begin_inset ERT status open \begin_layout Plain Layout \backslash .s \end_layout \end_inset \end_layout \begin_layout Standard Since in many international keyboards there are exceptions to what some dead keys should do, you can define them using \end_layout \begin_layout Quotation \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash kxmod \end_layout \end_inset deadkey key outstring \end_layout \begin_layout Standard For example, on Slovak keyboard, if you enter caron-o, it generates circumflex-o , so you put in \end_layout \begin_layout Quotation \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash kxmod \end_layout \end_inset caron o " \backslash ^o" \end_layout \begin_layout Standard to make it work correctly. Also, you have to define as exceptions dead keys over i and j, to remove the dot from them before inserting an accent mark. I will change this when the time comes, but so far I haven't had time. \end_layout \begin_layout Standard Oh, and about characters: backslash is escaped, so to enter it, you'll need double backslash. Also, quotes and \begin_inset Flex Code status collapsed \begin_layout Plain Layout # \end_layout \end_inset have different meaning. \begin_inset Flex Code status collapsed \begin_layout Plain Layout # \end_layout \end_inset marks comments, quotes start and end LaTeX-style commands. To enter quote, you'll need to use \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash " \end_layout \end_inset , to enter \begin_inset Flex Code status collapsed \begin_layout Plain Layout # \end_layout \end_inset , use \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash # \end_layout \end_inset . \end_layout \begin_layout Standard If you make a keyboard description file that works for your language, please mail it to me, so I can include it in the next keymap distribution. \end_layout \begin_layout Standard More keywords will be supported in keymap configuration file in future, like \end_layout \begin_layout Itemize \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash kinclude filename \end_layout \end_inset \emph on \begin_inset space \hfill{} \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout include \end_layout \end_inset another file \end_layout \begin_layout Itemize \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash kprog program \end_layout \end_inset \emph on \begin_inset space \hfill{} \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout define \end_layout \end_inset an external keymap translation program \end_layout \begin_layout Standard Also, it should look into \begin_inset Flex Code status collapsed \begin_layout Plain Layout lyxrc \end_layout \end_inset file for defaults, too (for example, a \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash kinclude \end_layout \end_inset option to include default keyboard). \end_layout \end_inset \end_layout \begin_layout Section International Keymap Stuff \begin_inset CommandInset label LatexCommand label name "sec:International-Keymap-Stuff" \end_inset \end_layout \begin_layout Standard \begin_inset Note Note status open \begin_layout Plain Layout In doing the revisions on this document in March 2008, I did not look over this stuff, as I do not understand it. It would be good if someone else could do so. (RH) \end_layout \end_inset \end_layout \begin_layout Standard The next two sections describe the \begin_inset Flex Code status collapsed \begin_layout Plain Layout \shape up .kmap \end_layout \end_inset and \begin_inset Flex Code status collapsed \begin_layout Plain Layout \shape up .cdef \end_layout \end_inset file syntax in detail. These sections should help you design your own key map if the ones provided do not meet your needs. \end_layout \begin_layout Subsection The .kmap File \end_layout \begin_layout Standard A \shape up . \begin_inset Flex Code status collapsed \begin_layout Plain Layout kmap \end_layout \end_inset file maps keystrokes to characters or strings. As the name suggests, it sets a keyboard mapping. The \begin_inset Flex Code status collapsed \begin_layout Plain Layout .kmap \end_layout \end_inset \shape default file keywords \shape up \begin_inset Flex Code status collapsed \begin_layout Plain Layout \shape up kmap \end_layout \end_inset \shape default , \shape up \shape default \begin_inset Flex Code status collapsed \begin_layout Plain Layout \shape up kmod \end_layout \end_inset , \shape up \shape default \begin_inset Flex Code status collapsed \begin_layout Plain Layout \shape up kxmod \end_layout \end_inset , and \begin_inset Flex Code status collapsed \begin_layout Plain Layout \shape up kcomb \end_layout \end_inset are described in this section. \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout \shape up kmap \end_layout \end_inset Map a character to a string \end_layout \begin_layout LyX-Code \backslash kmap \family roman \emph on char \family default \emph default \family roman \emph on string \end_layout \begin_layout Standard This will ma \family roman p \family default \family roman \emph on char \family default \emph default \family roman to \family default \family roman \emph on string \emph default . Note that in \family default \family roman \emph on string \emph default , \family default \family roman \shape up the double-quote (") \family default \shape default \family roman and \family default \family roman \shape up the backslash ( \backslash ) \family default \shape default \family roman must be escaped with a preceding backslash ( \shape up \backslash \shape default ) \family default . \end_layout \begin_layout Standard An example of a \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout \shape up kmap \end_layout \end_inset statement to cause the symbol \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout \shape up / \end_layout \end_inset to be output for the keystroke \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout \shape up & \end_layout \end_inset is: \end_layout \begin_layout LyX-Code \backslash kmap & / \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout \shape up kmod \end_layout \end_inset Specify an accent character \end_layout \begin_layout LyX-Code \backslash kmod \family roman \emph on char accent allowed \end_layout \begin_layout Standard This will make the cha \family roman racter \family default \family roman \emph on char \family default \emph default \family roman \shape up \emph on be an accent \family default \shape default \emph default \family roman \shape up on the \family default \shape default \family roman \shape up \emph on allowed \family default \shape default \emph default \family roman \shape up cha \family default racter(s). This is the dead key \begin_inset Foot status collapsed \begin_layout Plain Layout The term \family roman \emph on dead key \family default \emph default refers to a key that does not produce a character by itself, but when followed with another key, produces the desired accent character. For example, a German characte \family roman r with an umlaut like \family default \family roman \emph on ä \family default \emph default \family roman can be produced in this manner. \end_layout \end_inset mechanism. \end_layout \begin_layout Standard If you \family roman hit \family default \family roman \emph on char \family default \emph default \family roman and then another key not in \family default \family roman \emph on allowed \emph default , you will get a \family default \family roman \emph on char \family default \emph default \family roman followed by the other, not allowed key, as output. \family default Note that a \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout \shape up Backspace \end_layout \end_inset cancels a dead key, so if \family roman you hit \family default \family roman \emph on char \family default \emph default \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout \shape up \emph on Backspace \end_layout \end_inset , the cursor will not go one position backwards but will instead cancel the effect t \family roman hat \family default \family roman \shape up \emph on char \family default \shape default \emph default \family roman \shape up might have had on the next keystroke. \end_layout \begin_layout Standard The following example specifies that the character ' is to be an acute accent, allowed on the characters a, e, i, o, u, A, E, I, O, and U: \end_layout \begin_layout LyX-Code \backslash kmod ' acute aeiouAEIOU \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout kxmod \end_layout \end_inset Specify an exception to the accent character \end_layout \begin_layout LyX-Code \backslash kxmod \family roman \emph on accent char result \end_layout \begin_layout Standard This defines an exce \family roman ption for \family default \family roman \emph on accent \family default \emph default \family roman on \family default \family roman \emph on char \emph default . T \shape up he \family default \shape default \family roman \shape up \emph on accent \family default \shape default \emph default \family roman \shape up must \family default \shape default \shape up have been assigned a keystroke with a previous \shape default \begin_inset Flex Code status collapsed \begin_layout Plain Layout \shape up \backslash kmo \shape default d \end_layout \end_inset declar \family roman ation and \family default \family roman \emph on char \family default \emph default \family roman must not belong in the \family default \family roman \emph on allowed \family default \emph default \family roman set of \family default \family roman \emph on accent \emph default . When \family default \family roman \shape up you enter the \family default \shape default \family roman \shape up \emph on accent char \family default \shape default \emph default \family roman \shape up sequence, \family default \shape default \family roman \shape up \emph on result \emph default is produced. If such a declaration does not exist in \family default \shape default \shape up the \shape default \begin_inset Flex Code status collapsed \begin_layout Plain Layout \shape up .kmap \end_layout \end_inset file and yo \family roman u enter \family default \family roman \emph on accent char \emph default , you get \family default \family roman \emph on accent_key char \emph default where \family default \family roman \emph on accent_key \emph default is the first arg \family default ument of the \begin_inset Flex Code status collapsed \begin_layout Plain Layout \shape up \backslash kmod \end_layout \end_inset declaration. \end_layout \begin_layout Standard The following command produces causes äi to be produced when you enter acute-i ('i): \end_layout \begin_layout LyX-Code \backslash kxmod acute i " \backslash \backslash '{ \backslash \backslash i}" \end_layout \begin_layout Labeling \labelwidthstring 00.00.0000 \begin_inset Flex Code status collapsed \begin_layout Plain Layout kcomb \end_layout \end_inset Combine two accent characters \end_layout \begin_layout LyX-Code \backslash kcomb \family roman \emph on accent1 accent2 allowed \end_layout \begin_layout Standard This one is getting pretty esoteric. It allows you to combine the effect \family roman of \family default \family roman \emph on accent1 \family default \emph default \family roman and \family default \family roman \emph on accent2 \family default \emph default \family roman (in that order!) on \family default \family roman \emph on allowed \family default \emph default \family roman chars. The keystrokes for \family default \family roman \emph on accent1 \family default \emph default \family roman and \family default \family roman \emph on accent2 \family default \emph default \family roman must have be \family default en set with a \begin_inset Flex Code status collapsed \begin_layout Plain Layout \shape up \backslash kmod \end_layout \end_inset command at \family roman a \family default \family roman \emph on previous \family default \emph default \family roman point in the \family default file. \end_layout \begin_layout Standard Consider this example from the \begin_inset Flex Code status collapsed \begin_layout Plain Layout \shape up greek.kmap \end_layout \end_inset file: \end_layout \begin_layout LyX-Code \backslash kmod ; acute aeioyvhAEIOYVH \backslash kmod : umlaut iyIY \backslash kcomb acute umlaut iyIY \end_layout \begin_layout Standard This allows you to press \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout \shape up ;:i \end_layout \end_inset and get the effect of \begin_inset Flex Code status collapsed \begin_layout Plain Layout \shape up \backslash '{ \backslash "{i}} \end_layout \end_inset . \family roman \shape up A backspace \family default \shape default in this case cancels the last dead key, so if you press \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout \shape up ;: Backspace i \end_layout \end_inset you get \begin_inset Flex Code status collapsed \begin_layout Plain Layout \shape up \backslash '{i} \end_layout \end_inset . \end_layout \begin_layout Subsection The .cdef File \end_layout \begin_layout Standard After the \begin_inset Flex Code status collapsed \begin_layout Plain Layout \shape up .kmap \end_layout \end_inset mapping is performed, a \begin_inset Flex Code status collapsed \begin_layout Plain Layout \shape up .cde \shape default f \end_layout \end_inset file maps the strings that the symbols generate to characters in the current font. The LyX distribution currently includes at least the \begin_inset Flex Code status collapsed \begin_layout Plain Layout \shape up iso8859-1.cdef \end_layout \end_inset and \begin_inset Flex Code status collapsed \begin_layout Plain Layout \shape up iso8859-2.cdef \end_layout \end_inset files. \end_layout \begin_layout Standard In general the \begin_inset Flex Code status collapsed \begin_layout Plain Layout \shape up .cdef \end_layout \end_inset file is a sequence of declarations of the form \end_layout \begin_layout LyX-Code \family roman \emph on char_index_in_set \family default \emph default \family roman \emph on string \end_layout \begin_layout Standard For example, in order to map \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout \shape up \backslash '{e} \end_layout \end_inset to the corresponding character in the iso-8859-1 set (233), the following declaration is used \end_layout \begin_layout LyX-Code 233 " \backslash \backslash '{e}" \end_layout \begin_layout Standard with \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash \end_layout \end_inset and \begin_inset Flex Code status collapsed \begin_layout Plain Layout " \end_layout \end_inset being escap \family roman ed in \family default \family roman \emph on string \emph default . Note that \family default the same character can apply to more than one string. In the \begin_inset Flex Code status collapsed \begin_layout Plain Layout i \shape up so-8859-7.cdef \end_layout \end_inset file you have \end_layout \begin_layout LyX-Code 192 " \backslash \backslash '{ \backslash \backslash \backslash "{i}}" \begin_inset Newline newline \end_inset 192 " \backslash \backslash \backslash "{ \backslash \backslash '{i}}" \end_layout \begin_layout Standard If LyX cannot find a mapping for the string produced by the keystroke or a deadkey sequence, it will check if it looks like an accented char and try to draw an accent over the character on screen. \end_layout \begin_layout Subsection Dead Keys \end_layout \begin_layout Standard There is a second way to add support for international characters through so-called dead-keys. A dead-key works in combination with a letter to produce an accented character. Here, we'll explain how to create a really simple dead-key to illustrate how they work. \end_layout \begin_layout Standard Suppose you happen to need the circumflex character, \begin_inset Quotes eld \end_inset ̂ \begin_inset Quotes erd \end_inset . You could bind the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout ^ \end_layout \end_inset -key [a.k.a. \begin_inset space ~ \end_inset \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Shift-6 \end_layout \end_inset ] to the LyX command \begin_inset Flex Code status collapsed \begin_layout Plain Layout accent-circumflex \end_layout \end_inset in your \begin_inset Flex Code status collapsed \begin_layout Plain Layout lyxrc \end_layout \end_inset file. Now, whenever you type the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout ^ \end_layout \end_inset -key followed by a letter, that letter will have a circumflex accent on it. For example, the sequence \begin_inset Quotes eld \end_inset \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout ^e \end_layout \end_inset \begin_inset Quotes erd \end_inset produces the letter: \begin_inset Quotes eld \end_inset ê \begin_inset Quotes erd \end_inset . If you tried to type \begin_inset Quotes eld \end_inset \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout ^t \end_layout \end_inset \begin_inset Quotes erd \end_inset , however, LyX will complain with a beep, since a \begin_inset Quotes eld \end_inset \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout t \end_layout \end_inset \begin_inset Quotes erd \end_inset never takes a circumflex accent. Hitting \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Space \end_layout \end_inset after a dead-key produces the bare-accent. Please note this last point! If you bind a key to a dead-key, you'll need to rebind the character on that key to yet another key. Binding the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout ,-key \end_layout \end_inset to a cedilla is a bad idea, since you'll only get cedillas instead of commas. \end_layout \begin_layout Standard One common way to bind dead-keys is to use \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Meta- \end_layout \end_inset , \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Ctrl- \end_layout \end_inset , and \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Shift- \end_layout \end_inset in combination with an accent, like \begin_inset Quotes eld \end_inset \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout ~ \end_layout \end_inset \begin_inset Quotes erd \end_inset or \begin_inset Quotes eld \end_inset \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout , \end_layout \end_inset \begin_inset Quotes erd \end_inset or \begin_inset Quotes eld \end_inset \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout ^ \end_layout \end_inset \begin_inset Quotes erd \end_inset . Another way involves using \begin_inset Flex Code status collapsed \begin_layout Plain Layout xmodmap \end_layout \end_inset and \begin_inset Flex Code status collapsed \begin_layout Plain Layout xkeycaps \end_layout \end_inset to set up the special \begin_inset Flex Code status collapsed \begin_layout Plain Layout Mode_Switch \end_layout \end_inset key. The \begin_inset Flex Code status collapsed \begin_layout Plain Layout Mode_Switch \end_layout \end_inset acts in some ways just like \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Shift \end_layout \end_inset and permits you to bind keys to accented characters. You can also turn keys into dead-keys by binding them to something like \begin_inset Flex Code status collapsed \begin_layout Plain Layout usldead_cedilla \end_layout \end_inset and then binding this symbolic key to the corresponding LyX command. \begin_inset Foot status collapsed \begin_layout Plain Layout Note from \noun on John Weiss \noun default : This is exactly what I do in my \begin_inset Flex Code status collapsed \begin_layout Plain Layout ~/.lyx/lyxrc \end_layout \end_inset and my \begin_inset Flex Code status collapsed \begin_layout Plain Layout ~/.xmodmap \end_layout \end_inset files. I have my \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Scroll \begin_inset space ~ \end_inset Lock \end_layout \end_inset key set up as \begin_inset Flex Code status collapsed \begin_layout Plain Layout Mode_Shift \end_layout \end_inset and a bunch of these \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout usldead_* \end_layout \end_inset \begin_inset Quotes erd \end_inset symbolic keys bound such things as \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Scroll \begin_inset space ~ \end_inset Lock-^ \end_layout \end_inset and \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Scroll \begin_inset space ~ \end_inset Lock-~ \end_layout \end_inset . This is how I produce my accented characters. \end_layout \end_inset You can make just about anything into the \begin_inset Flex Code status collapsed \begin_layout Plain Layout Mode_Switch \end_layout \end_inset key: One of the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Ctrl- \end_layout \end_inset keys, a spare function key, etc. As for the LyX commands that produce accents, check the entry for \begin_inset Flex Code status collapsed \begin_layout Plain Layout accent-acute \end_layout \end_inset in the \emph on Reference Manual \emph default . You'll find the complete list there. \end_layout \begin_layout Subsection Saving your Language Configuration \end_layout \begin_layout Standard You can edit your preferences so that your desired language environment is automatically configured when LyX starts up, via the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Edit\SpecialChar \menuseparator Preferences \end_layout \end_inset dialog. \end_layout \begin_layout Chapter Installing New Document Classes, Layouts, and Templates \begin_inset CommandInset label LatexCommand label name "cha:Installing-New-Document" \end_inset \begin_inset Argument status collapsed \begin_layout Plain Layout Installing New Document Classes \end_layout \end_inset \end_layout \begin_layout Standard In this chapter, we describe the procedures for creating and installing new LyX layout and template files, as well as offer a refresher on correctly installing new LaTeX document classes. \end_layout \begin_layout Standard First, let us a say a few words about how one ought to think about the relation between LyX and LaTeX. The thing to understand is that, in a certain sense, LyX doesn't know anything about LaTeX. Indeed, from LyX's point of view, LaTeX is just one of several \begin_inset Quotes eld \end_inset backend formats \begin_inset Quotes erd \end_inset in which it is capable of producing output. Other such formats are DocBook, plaintext, and XHTML. LaTeX is, of course, a particularly important format, but very little of the information LyX has about LaTeX is actually contained in the program itself. \begin_inset Foot status collapsed \begin_layout Plain Layout Some commands are sufficiently complex that they are \begin_inset Quotes eld \end_inset hardcoded \begin_inset Quotes erd \end_inset into LyX. But the developers generally regard this as a Bad Thing. \end_layout \end_inset Rather, that information, even for the standard classes like \begin_inset Flex Code status collapsed \begin_layout Plain Layout article.cls \end_layout \end_inset , is contained in `layout files'. Similarly, LyX itself does not know much about DocBook or XHTML. What it knows is contained in layout files. \end_layout \begin_layout Standard You can think of the layout file for a given document class as a translation manual between LyX constructs---paragraphs with their corresponding styles, certain sorts of insets, etc---and the corresponding LaTeX, DocBook, or XHTML constructs. Almost everything LyX knows about \begin_inset Flex Code status collapsed \begin_layout Plain Layout article.cls \end_layout \end_inset , for example, is contained in the file \begin_inset Flex Code status collapsed \begin_layout Plain Layout article.layout \end_layout \end_inset and in various other files it includes. For this reason, anyone intending to write layout files should plan to study the existing files. A good place to start is with \begin_inset Flex Code status collapsed \begin_layout Plain Layout stdsections.inc \end_layout \end_inset , which is included in \begin_inset Flex Code status collapsed \begin_layout Plain Layout article.layout \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout book.layout \end_layout \end_inset , and many of the other layout files for document classes. This file is where sections and the like are defined: \begin_inset Flex Code status collapsed \begin_layout Plain Layout stdsections.inc \end_layout \end_inset tells LyX how paragraphs that are marked with the Section, Subsection, etc, styles can be translated into corresponding LaTeX, DocBook, and XHTML commands and tags. The \begin_inset Flex Code status collapsed \begin_layout Plain Layout article.layout \end_layout \end_inset file basically just includes several of these \begin_inset Flex Code status collapsed \begin_layout Plain Layout std*.inc \end_layout \end_inset files. \end_layout \begin_layout Standard Defining the LyX--LaTeX correspondence is not the only thing layout files do, though. Their other job is to define how the LyX constructs themselves will appear on-screen. The fact that layout files have these two jobs is often a source of confusion, because they are completely separate. Telling LyX how to translate a certain paragraph style into LaTeX does not tell LyX how to display it; conversely, telling LyX how to display a certain paragraph style does not tell LyX how to translate it into LaTeX (let alone tell LaTeX how to display it). So, in general, when you define a new LyX construct, you must always do two quite separate things: (i) \begin_inset space ~ \end_inset tell LyX how to translate it into LaTeX and (ii) \begin_inset space ~ \end_inset tell LyX how to display it. \end_layout \begin_layout Standard Much the same is true, of course, as regards LyX's other backend formats, though XHTML is in some ways different, because in that case LyX \emph on is \emph default able, to some extent, to use information about how it should display a paragraph on the screen to output information (in the form of CSS) about how the paragraph should be displayed in a browser. Even in this case, however, the distinction between what LyX does internally and how things are rendered externally remains in force, and the two can be controlled separately. See \begin_inset CommandInset ref LatexCommand ref reference "sec:Tags-for-XHTML" \end_inset for the details. \end_layout \begin_layout Section Installing new LaTeX files \end_layout \begin_layout Standard Some installations may not include a LaTeX package or class file that you would like to use within LyX. For example, you might need FoilTeX, a package for preparing slides for overhead projectors. Modern LaTeX distributions like TeXLive (2008 or newer) or MiKTeX provide a user interface for installing such packages. For example, with MiKTeX, you start the program \begin_inset Quotes eld \end_inset Package \begin_inset space ~ \end_inset Manager \begin_inset Quotes erd \end_inset to get a list of available packages. To install one of them, right click on it or use the corresponding toolbar button. \end_layout \begin_layout Standard If your LaTeX distribution does not provide such a `package manager', or if the package is not available from your distribution, then follow these steps to install it manually: \end_layout \begin_layout Enumerate Get the package from \begin_inset CommandInset href LatexCommand href name "CTAN" target "http://www.ctan.org/" \end_inset or wherever. \end_layout \begin_layout Enumerate If the package contains a file with the ending \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout .ins \end_layout \end_inset \begin_inset Quotes erd \end_inset (is the case for FoilTeX) then open a console, change to the folder of this file and execute the command \begin_inset Flex Code status collapsed \begin_layout Plain Layout latex foiltex.ins \end_layout \end_inset . You have now unpacked the package and have all files to install it. Most LaTeX-packages are not packed and you can skip this step. \end_layout \begin_layout Enumerate Now you need to decide if the package should be available for all users or only for you. \end_layout \begin_deeper \begin_layout Enumerate On *nix systems (Linux, OSX, etc.), if you want the new package to be available for all users on your system, then install it in your `local' TeX tree, otherwise install it in your own `user' TeX tree. Where these trees should be created, if they do not already exist, depends on your system. To find this out, look in the file \begin_inset Flex Code status collapsed \begin_layout Plain Layout texmf.cnf \end_layout \end_inset . \begin_inset Foot status collapsed \begin_layout Plain Layout This is usually in the directory \begin_inset Flex Code status collapsed \begin_layout Plain Layout $TEXMF/web2c \end_layout \end_inset , though you can execute the command \begin_inset Flex Code status collapsed \begin_layout Plain Layout kpsewhich texmf.cnf \end_layout \end_inset to locate it. \end_layout \end_inset The location of the `local' TeX tree is defined by the \begin_inset Flex Code status collapsed \begin_layout Plain Layout TEXMFLOCAL \end_layout \end_inset variable; this is usually somewhere like \begin_inset Flex Code status collapsed \begin_layout Plain Layout /usr/local/share/texmf \end_layout \end_inset . The location of the `user' TeX tree is defined by \begin_inset Flex Code status collapsed \begin_layout Plain Layout TEXMFHOME \end_layout \end_inset and is commonly \begin_inset Flex Code status collapsed \begin_layout Plain Layout $HOME/texmf \end_layout \end_inset . (If these variables are not predefined, you have to define them.) You'll probably need root permissions to create or modify the `local' tree, but not for your `user' tree. \begin_inset Newline newline \end_inset In general, it is recommended to install in the user tree because your user will not be modified or even overwritten when you upgrade your system. It will typically also be backed up together with everything else when you backup your home directory (which, of course, you do on a regular basis). \end_layout \begin_layout Enumerate On Windows, if you want the new package to be available for all users on your system, change to the folder where LaTeX is installed and then change to the subfolder \begin_inset Flex Code status collapsed \begin_layout Plain Layout ~ \backslash tex \backslash latex \end_layout \end_inset . (For MiKTeX, this would be by default the folder \begin_inset Flex Code status collapsed \begin_layout Plain Layout ~: \backslash Programs \backslash MiKTeX \backslash tex \backslash latex \end_layout \end_inset .) \begin_inset Foot status open \begin_layout Plain Layout Note that this will be the correct path only on English installations. On a German one, it would be \begin_inset Flex Code status collapsed \begin_layout Plain Layout ~: \backslash Programme \backslash MiKTeX \backslash tex \backslash latex \end_layout \end_inset , and similarly for other languages. \end_layout \end_inset Create there a new folder \begin_inset Flex Code status collapsed \begin_layout Plain Layout foiltex \end_layout \end_inset and copy all files of the package into it. \begin_inset Newline newline \end_inset If the package should only be available for you or you don't have admin permissions, do the same, but in the local LaTeX folder. E. \begin_inset space \thinspace{} \end_inset g., for MiKTeX \begin_inset space ~ \end_inset 2.8 under Windows XP, this would be the folder: \begin_inset Newline newline \end_inset \family sans \begin_inset Flex Code status collapsed \begin_layout Plain Layout ~: \backslash Documents and Settings \backslash \backslash Application Data \backslash \end_layout \end_inset \begin_inset Newline newline \end_inset \family default \begin_inset Phantom HPhantom status open \begin_layout Plain Layout \family sans ~: \backslash \end_layout \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout MiKTeX \backslash 2.8 \backslash tex \backslash latex \end_layout \end_inset \begin_inset Newline newline \end_inset On Vista, it would be: \begin_inset Newline newline \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout ~: \backslash Users \backslash \backslash AppData \backslash Roaming \backslash 2.8 \backslash MiKTeX \backslash tex \backslash latex \end_layout \end_inset \end_layout \end_deeper \begin_layout Enumerate Now one only needs to tell LaTeX that there are new files. This depends on which LaTeX distribution you are using: \end_layout \begin_deeper \begin_layout Enumerate For TeXLive execute the command \begin_inset Flex Code status collapsed \begin_layout Plain Layout texhash \end_layout \end_inset from a console. If you installed the package for all users, then you will probably need to have root permissions for that. \end_layout \begin_layout Enumerate For MiKTeX, if you have installed the package for all users, start the program \begin_inset Quotes eld \end_inset Settings \begin_inset space ~ \end_inset (Admin) \begin_inset Quotes erd \end_inset and press the button marked \begin_inset Quotes eld \end_inset Refresh FNDB \begin_inset Quotes erd \end_inset . Otherwise start the program \begin_inset Quotes eld \end_inset Settings \begin_inset Quotes erd \end_inset and do the same. \end_layout \end_deeper \begin_layout Enumerate Finally, you need to tell LyX that there are new packages available. So, in LyX, use the menu \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Tools \family sans \SpecialChar \menuseparator Reconfigure \end_layout \end_inset and then restart LyX. \end_layout \begin_layout Standard Now the package is installed. In our example, the document class \begin_inset Flex Code status collapsed \begin_layout Plain Layout Slides \begin_inset space ~ \end_inset (FoilTe \begin_inset ERT status collapsed \begin_layout Plain Layout {} \end_layout \end_inset x) \end_layout \end_inset will now be available under \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Document\SpecialChar \menuseparator Settings\SpecialChar \menuseparator Document Class \end_layout \end_inset . \end_layout \begin_layout Standard If you would like to use a LaTeX document class that is not even listed in the menu \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Document\SpecialChar \menuseparator Settings\SpecialChar \menuseparator Document Class \end_layout \end_inset , then you need to create a `layout' file for it. That is the topic of the next section. \end_layout \begin_layout Section Types of layout files \end_layout \begin_layout Standard This section describes the various sorts of LyX files that contain layout information. These files describe various paragraph and character styles, determining how LyX should display them and how they should be translated into LaTeX, DocBook, XHTML, or whatever output format is being used. \end_layout \begin_layout Standard We shall try to provide a thorough description of the process of writing layout files here. However, there are so many different types of documents supported even by just LaTeX that we can't hope to cover every different possibility or problem you might encounter. The LyX users' list is frequented by people with lots of experience with layout design who are willing to share what they've learned, so please feel free to ask questions there. \end_layout \begin_layout Standard As you prepare to write a new layout, it is extremely helpful to look at the layouts distributed with LyX. If you write a LyX layout for a LaTeX document class that might also be used by others, or write a module that might be useful to others, then you should consider posting your layout to the \begin_inset CommandInset href LatexCommand href name "layout section on the LyX wiki" target "http://wiki.lyx.org/Layouts/Layouts" \end_inset or even to the LyX developers' list, so that it might be included in LyX itself. \begin_inset Foot status collapsed \begin_layout Plain Layout Note that LyX is licensed under the General Public License, so any material that is contributed to LyX must be similarly licensed. \end_layout \end_inset \end_layout \begin_layout Subsection Layout modules \begin_inset CommandInset label LatexCommand label name "sub:Layout-modules" \end_inset \end_layout \begin_layout Standard We have spoken to this point about `layout files'. But there are different sorts of files that contain layout information. Layout files, strictly so called, have the \begin_inset Flex Code status collapsed \begin_layout Plain Layout .layout \end_layout \end_inset extension and provide LyX with information about document classes. As of LyX 1.6, however, layout information can also be contained in layout \emph on modules \emph default , which have the \begin_inset Flex Code status collapsed \begin_layout Plain Layout .module \end_layout \end_inset extension. Modules are to LaTeX packages much as layouts are to LaTeX classes, and some modules—such as the \begin_inset Flex Code status collapsed \begin_layout Plain Layout endnotes \end_layout \end_inset module—specifically provide support for one package. In a sense, layout modules are similar to included \begin_inset Foot status collapsed \begin_layout Plain Layout These can have any extension, but by convention have the \begin_inset Flex Code status collapsed \begin_layout Plain Layout .inc \end_layout \end_inset extension. \end_layout \end_inset files—files like \begin_inset Flex Code status collapsed \begin_layout Plain Layout stdsections.inc \end_layout \end_inset —in that modules are not specific to a given document class but may be used with many different classes. The difference is that using an included file with \begin_inset Flex Code status collapsed \begin_layout Plain Layout article.cls \end_layout \end_inset requires editing that file. Modules, by contrast, are selected in the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Document\SpecialChar \menuseparator Settings \end_layout \end_inset dialog. \end_layout \begin_layout Standard Building modules is the easiest way to get started with layout editing, since it can be as simple as adding a single new paragraph style or flex inset. But modules may, in principle, contain anything a layout file can contain. \end_layout \begin_layout Standard After creating a new module and copying it to the \begin_inset Flex Code status collapsed \begin_layout Plain Layout layouts/ \end_layout \end_inset folder, you will need to reconfigure and then restart LyX for the module to appear in the menu. However, changes you make to the module will be seen immediately if you open \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Document\SpecialChar \menuseparator Settings \end_layout \end_inset , highlight something, and then hit \begin_inset Quotes eld \end_inset OK \begin_inset Quotes erd \end_inset . \emph on It is strongly recommended that you save your work before doing this \emph default . In fact, \emph on it is strongly recommended that you not attempt to edit modules while simultaneo usly working on actual documents \emph default . Although of course the developers strive to keep LyX stable in such situations, syntax errors and the like in your module file could cause strange behavior. \end_layout \begin_layout Subsubsection Local Layout \end_layout \begin_layout Standard Modules are to LyX as packages are to LaTeX. Sometimes, however, you find yourself wanting a specific inset or character style just for one document and writing a module that will also be available to other documents makes little sense. What you need is LyX's \begin_inset Quotes eld \end_inset Local Layout \begin_inset Quotes erd \end_inset . \end_layout \begin_layout Standard You will find it under \family sans Document\SpecialChar \menuseparator Settings\SpecialChar \menuseparator Local Layout \family default . The large text box allows you to enter anything that you might enter in a layout file or module. You can think of a document's local layout, in fact, as a module that belongs just to it. So, in particular, you must enter a \begin_inset Flex Code status collapsed \begin_layout Plain Layout Format \end_layout \end_inset tag. Any format is acceptable, but one would normally use the format current at the time. (In LyX 2.0, the current layout format is 35.) You should be aware that local layout is not supported by versions of LyX prior to 1.6, so you should not use it if you want to be able to export your document to LyX 1.5 or earlier (without, that is, losing the local layout information). If you wish to be able to export to 1.6---local layout is supported in 1.6, though there is no UI for it---then you should use format 11 and, of course, use only layout constructs that were available in LyX 1.6. \end_layout \begin_layout Standard When you have entered something in the \begin_inset Flex Code status collapsed \begin_layout Plain Layout Local Layout \end_layout \end_inset pane, LyX will enable the \begin_inset Quotes eld \end_inset Validate \begin_inset Quotes erd \end_inset button at the bottom. Clicking this button will cause LyX to determine whether what you have entered is valid layout information for the chosen format. LyX will report the result but, unfortunately, will not tell you what errors there might have been. These will be written to the terminal, however, if LyX is started from a terminal. You will not be permitted to save your local layout until you have entered something valid. \end_layout \begin_layout Standard The warnings at the end of the previous section apply here, too. Do not play with local layout while you are actually working, especially if you have not saved your document. That said, using local layout with a test document can be a very convenient way to try out layout ideas, or even to start developing a module. \end_layout \begin_layout Subsection Layout for \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout .sty \end_layout \end_inset files \end_layout \begin_layout Standard There are two situations you are likely to encounter when wanting to support a new LaTeX document class, involving style ( \begin_inset Flex Code status collapsed \begin_layout Plain Layout .sty \end_layout \end_inset ) files and LaTeX2e class ( \begin_inset Flex Code status collapsed \begin_layout Plain Layout .cls \end_layout \end_inset ) files. Supporting a style file is usually fairly easy. Supporting a new class file is a bit harder. We'll discuss the former in this section and the latter in the next. Similar remarks apply, of course, if you want to support a new DocBook DTD. \end_layout \begin_layout Standard The easier case is the one in which your new document class is provided as a style file that is to be used in conjunction with an already supported document class. For the sake of the example, we'll assume that the style file is called \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout myclass.sty \end_layout \end_inset and that it is meant to be used with \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout report.cls \end_layout \end_inset , which is a standard class. \end_layout \begin_layout Standard Start by copying the existing class's layout file into your local directory: \begin_inset Foot status collapsed \begin_layout Plain Layout Of course, which directory is your local directory will vary by platform, and LyX allows you to specify your local directory on startup, too, using the \begin_inset Flex Code status collapsed \begin_layout Plain Layout -userdir \end_layout \end_inset option. \end_layout \end_inset \end_layout \begin_layout LyX-Code cp report.layout ~/.lyx/layouts/myclass.layout \end_layout \begin_layout Standard Then edit \begin_inset Flex Code status collapsed \begin_layout Plain Layout myclass.layout \end_layout \end_inset and change the line: \end_layout \begin_layout LyX-Code \backslash DeclareLaTeXClass{report} \end_layout \begin_layout Standard to read \end_layout \begin_layout LyX-Code \backslash DeclareLaTeXClass[report, myclass.sty]{report (myclass)} \end_layout \begin_layout Standard Then add: \end_layout \begin_layout LyX-Code Preamble \begin_inset Newline newline \end_inset \backslash usepackage{myclass} \begin_inset Newline newline \end_inset EndPreamble \end_layout \begin_layout Standard near the top of the file. \end_layout \begin_layout Standard Start LyX and select \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Tools\SpecialChar \menuseparator Reconfigure \end_layout \end_inset . Then restart LyX and try creating a new document. You should see " \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout report (myclass) \end_layout \end_inset " as a document class option in the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Document\SpecialChar \menuseparator Settings \end_layout \end_inset dialog. It is likely that some of the sectioning commands and such in your new class will work differently from how they worked in the base class— \begin_inset Flex Code status collapsed \begin_layout Plain Layout report \end_layout \end_inset in this example—so you can fiddle around with the settings for the different sections if you wish. The layout information for sections is contained in \begin_inset Flex Code status collapsed \begin_layout Plain Layout stdsections.inc \end_layout \end_inset , but you do not need to copy and change this file. Instead, you can simply add your changes to your layout file, after the line \begin_inset Flex Code status collapsed \begin_layout Plain Layout Input stdclass.inc \end_layout \end_inset , which itself includes \begin_inset Flex Code status collapsed \begin_layout Plain Layout stdsections.inc \end_layout \end_inset . For example, you might add these lines: \end_layout \begin_layout LyX-Code Style Chapter \end_layout \begin_layout LyX-Code Font \end_layout \begin_layout LyX-Code Family Sans \end_layout \begin_layout LyX-Code EndFont \end_layout \begin_layout LyX-Code End \end_layout \begin_layout Standard to change the font for chapter headings to sans-serif. This will override (or, in this case, add to) the existing declaration for the Chapter style. \end_layout \begin_layout Standard Your new package may also provide commands or environments not present in the base class. In this case, you will want to add these to the layout file. See \begin_inset CommandInset ref LatexCommand ref reference "sec:TextClass" \end_inset for information on how to do so. \end_layout \begin_layout Standard If \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout myclass.sty \end_layout \end_inset can be used with several different document classes, and even if it cannot, you might find it easiest just to write a module that you can load with the base class. The simplest possible such module would be: \end_layout \begin_layout LyX-Code # \backslash DeclareLyXModule{My Package} \end_layout \begin_layout LyX-Code #DescriptionBegin \end_layout \begin_layout LyX-Code #Support for mypkg.sty. \end_layout \begin_layout LyX-Code #DescriptionEnd \begin_inset Newline newline \end_inset \end_layout \begin_layout LyX-Code Format 21 \begin_inset Newline newline \end_inset \end_layout \begin_layout LyX-Code Preamble \begin_inset Newline newline \end_inset \backslash usepackage{mypkg} \begin_inset Newline newline \end_inset EndPreamble \end_layout \begin_layout Standard A more complex module might modify the behavior of some existing constructs or define some new ones. Again, see \begin_inset CommandInset ref LatexCommand ref reference "sec:TextClass" \end_inset for discussion. \end_layout \begin_layout Subsection Layout for \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout .cls \end_layout \end_inset files \end_layout \begin_layout Standard There are two possibilities here. One is that the class file is itself based upon an existing document class. For example, many thesis classes are based upon \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout book.cls \end_layout \end_inset . To see whether yours is, look for a line like \end_layout \begin_layout LyX-Code \backslash LoadClass{book} \end_layout \begin_layout Standard in the file. If so, then you may proceed largely as in the previous section, though the \begin_inset Flex Code status collapsed \begin_layout Plain Layout DeclareLaTeXClass \end_layout \end_inset line will be different. If your new class is \begin_inset Flex Code status collapsed \begin_layout Plain Layout thesis \end_layout \end_inset and it is based upon \begin_inset Flex Code status collapsed \begin_layout Plain Layout book \end_layout \end_inset , then the line should read: \begin_inset Foot status collapsed \begin_layout Plain Layout And it will be easiest if you save the file to \begin_inset Flex Code status collapsed \begin_layout Plain Layout thesis.layout \end_layout \end_inset : LyX assumes that the document class has the same name as the layout file. \end_layout \end_inset \end_layout \begin_layout LyX-Code \backslash DeclareLaTeXClass[thesis,book]{thesis} \end_layout \begin_layout Standard If, on the other hand, the new class is not based upon an existing class, you will probably have to \begin_inset Quotes eld \end_inset roll your own \begin_inset Quotes erd \end_inset layout. We strongly suggest copying an existing layout file which uses a similar LaTeX class and then modifying it, if you can do so. At least use an existing file as a starting point so you can find out what items you need to worry about. Again, the specifics are covered below. \end_layout \begin_layout Subsection Creating templates \begin_inset CommandInset label LatexCommand label name "sub:Creating-Templates" \end_inset \end_layout \begin_layout Standard Once you have written a layout file for a new document class, you might want to consider writing a \emph on template \emph default for it, too. A template acts as a kind of tutorial for your layout, showing how it might be used, though containing dummy content. You can of course look at the various templates included with LyX for ideas. \end_layout \begin_layout Standard Templates are created just like usual documents: using LyX. The only difference is that usual documents contain all possible settings, including the font scheme and the paper size. Usually a user doesn't want a template to overwrite his preferred settings for such parameters. For that reason, the designer of a template should remove the corresponding commands like \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash font_roman \end_layout \end_inset or \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash papersize \end_layout \end_inset from the template LyX file. This can be done with any simple text-editor, for example \begin_inset Flex Code status collapsed \begin_layout Plain Layout vi \end_layout \end_inset or \begin_inset Flex Code status collapsed \begin_layout Plain Layout notepad \end_layout \end_inset . \end_layout \begin_layout Standard Put the edited template files you create in \begin_inset Flex Code status collapsed \begin_layout Plain Layout UserDir/templates/ \end_layout \end_inset , copy the ones you use from the global template directory in \begin_inset Flex Code status collapsed \begin_layout Plain Layout LyXDir/templates/ \end_layout \end_inset to the same place, and redefine the template path in the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Tools\SpecialChar \menuseparator Preferences\SpecialChar \menuseparator Paths \end_layout \end_inset dialog. \end_layout \begin_layout Standard Note, by the way, that there is a template which has a particular meaning: \begin_inset Flex Code status collapsed \begin_layout Plain Layout defaults.lyx \end_layout \end_inset . This template is loaded every time you create a new document with \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout File\SpecialChar \menuseparator New \end_layout \end_inset in order to provide useful defaults. To create this template from inside LyX, all you have to do is to open a document with the correct settings, and use the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Save as Document Defaults \end_layout \end_inset button. \end_layout \begin_layout Subsection Upgrading old layout files \end_layout \begin_layout Standard The format of layout files changes with each LyX release, so old layout files need to be converted to the new format. This process has been automated since LyX 1.4: If LyX reads a layout file in an older format, it automatically calls the script \begin_inset Flex Code status collapsed \begin_layout Plain Layout layout2layout.py \end_layout \end_inset to convert it to a temporary file in current format. The original file is left untouched. If you use the layout file often, then, you may want to convert it permanently, so that LyX does not have to do so itself every time. To do this, you can call the converter manually: \end_layout \begin_layout LyX-Code mv myclass.layout myclass.old \end_layout \begin_layout LyX-Code python LyXDir/scripts/layout2layout.py myclass.old myclass.layout \end_layout \begin_layout Standard You need to replace \begin_inset Flex Code status collapsed \begin_layout Plain Layout LyXDir \end_layout \end_inset with the name of your LyX system directory, of course. \end_layout \begin_layout Standard Note that manual conversion does not affect included files, so these will have to be converted separately. \end_layout \begin_layout Section \begin_inset CommandInset label LatexCommand label name "sec:TextClass" \end_inset The layout file format \end_layout \begin_layout Standard When it's finally time to get your hands dirty and create or edit your own layout file, the following sections describe what you're up against. Our advice is to go slowly, save and test often, listen to soothing music, and enjoy one or two of your favorite adult beverages; more if you are getting particularly stuck. It's really not that hard, except that the multitude of options can become overwhelming if you try to do too much in one sitting. Go have another adult beverage, just for good measure. \end_layout \begin_layout Standard Note that all the tags used in layout files are case-insensitive. This means that \begin_inset Flex Code status collapsed \begin_layout Plain Layout Style \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout style \end_layout \end_inset and \begin_inset Flex Code status collapsed \begin_layout Plain Layout StYlE \end_layout \end_inset are really the same tag. The possible values are printed in brackets after the feature's name. The default value if a feature isn't specified inside a text class-description is typeset \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on emphasized \end_layout \end_inset . If the argument has a data type like \begin_inset Quotes eld \end_inset string \begin_inset Quotes erd \end_inset or \begin_inset Quotes eld \end_inset float \begin_inset Quotes erd \end_inset , the default is shown like this: \begin_inset Flex Code status collapsed \begin_layout Plain Layout float= \emph on default \end_layout \end_inset . \end_layout \begin_layout Subsection The document class declaration \end_layout \begin_layout Standard Lines in a layout file which begin with \begin_inset Flex Code status collapsed \begin_layout Plain Layout # \end_layout \end_inset are comments. There is one exception to this rule. All \begin_inset Flex Code status collapsed \begin_layout Plain Layout *.layout \end_layout \end_inset files should begin with a line like: \end_layout \begin_layout LyX-Code \size small #% Do not delete the line below; configure depends on this \end_layout \begin_layout LyX-Code \size small # \backslash DeclareLaTeXClass{article} \end_layout \begin_layout Standard The second line is used when you (re)configure LyX. The layout file is read by the LaTeX script \begin_inset Flex Code status collapsed \begin_layout Plain Layout chkconfig.ltx \end_layout \end_inset , in a special mode where \begin_inset Flex Code status collapsed \begin_layout Plain Layout # \end_layout \end_inset is ignored. The first line is just a LaTeX comment, and the second one contains the declaration of the text class. If these lines appear in a file named \begin_inset Flex Code status collapsed \begin_layout Plain Layout article.layout \end_layout \end_inset , then they define a text class of name \begin_inset Flex Code status collapsed \begin_layout Plain Layout article \end_layout \end_inset (the name of the layout file) which uses the LaTeX document class \begin_inset Flex Code status collapsed \begin_layout Plain Layout article.cls \end_layout \end_inset (the default is to use the same name as the layout). The string \begin_inset Quotes eld \end_inset article \begin_inset Quotes erd \end_inset that appears above is used as a description of the text class in the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Document\SpecialChar \menuseparator Settings \end_layout \end_inset dialog. \end_layout \begin_layout Standard Let's assume that you wrote your own text class that uses the \begin_inset Flex Code status collapsed \begin_layout Plain Layout article.cls \end_layout \end_inset document class, but where you changed the appearance of the section headings. If you put it in a file \begin_inset Flex Code status collapsed \begin_layout Plain Layout myarticle.layout \end_layout \end_inset , the header of this file should be: \end_layout \begin_layout LyX-Code \size small #% Do not delete the line below; configure depends on this \end_layout \begin_layout LyX-Code \size small # \backslash DeclareLaTeXClass[article]{article (with my own headings)} \end_layout \begin_layout Standard This declares a text class \begin_inset Flex Code status collapsed \begin_layout Plain Layout myarticle \end_layout \end_inset , associated with the LaTeX document class \begin_inset Flex Code status collapsed \begin_layout Plain Layout article.cls \end_layout \end_inset and described as \begin_inset Quotes eld \end_inset article (with my own headings) \begin_inset Quotes erd \end_inset . If your text class depends on several packages, you can declare it as: \end_layout \begin_layout LyX-Code \size small #% Do not delete the line below; configure depends on this \end_layout \begin_layout LyX-Code \size small # \backslash DeclareLaTeXClass[article,foo.sty]{article (with my own headings)} \end_layout \begin_layout Standard This indicates that your text class uses the \begin_inset Flex Code status collapsed \begin_layout Plain Layout foo.sty \end_layout \end_inset package. Finally, it is also possible to declare classes for DocBook code. Typical declarations will look like: \end_layout \begin_layout LyX-Code \size small #% Do not delete the line below; configure depends on this \end_layout \begin_layout LyX-Code \size small # \backslash DeclareDocBookClass[article]{SGML (DocBook article)} \end_layout \begin_layout Standard Note that these declarations can also be given an optional parameter declaring the name of the document class (but not a list). \end_layout \begin_layout Standard So, to be as explicit as possible, the form of the layout declaration is: \end_layout \begin_layout LyX-Code \size small # \backslash DeclareLaTeXClass[class,package.sty]{layout description} \end_layout \begin_layout Standard The class need only be specified if the name of the LaTeX class file and the name of the layout file are different or if there are packages to load. If the name of the class file is not specified, then LyX will simply assume that it is the same as the name of the layout file. \end_layout \begin_layout Standard When the text class has been modified to your taste, all you have to do is to copy it either to \begin_inset Flex Code status collapsed \begin_layout Plain Layout LyXDir/layouts/ \end_layout \end_inset or to \begin_inset Flex Code status collapsed \begin_layout Plain Layout UserDir/layouts \end_layout \end_inset , run \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Tools\SpecialChar \menuseparator Reconfigure \end_layout \end_inset , exit LyX and restart. Then your new text class should be available along with the others. \end_layout \begin_layout Standard Once the layout file is installed, you can edit it and see your changes without having to reconfigure or to restart LyX. \begin_inset Foot status collapsed \begin_layout Plain Layout In versions of LyX prior to 1.6, this was not true. As a result, editing layout files was very time consuming, since you had to constantly restart LyX to see changes. \end_layout \end_inset You can force a reload of the current layout by using the LyX function \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout layout-reload \end_layout \end_inset . There is no default binding for this function—though, of course, you can bind it to a key yourself. But you will normally use this function simply by entering it in the mini-buffe r. \end_layout \begin_layout Standard \emph on Warning \emph default : \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout layout-reload \end_layout \end_inset is very much an `advanced feature'. It is \emph on strongly \emph default recommended that you save your work before using this function. In fact, it is \emph on strongly \emph default recommended that you not attempt to edit layout information while simultaneousl y working on a document that you care about. Use a test document. Syntax errors and the like in your layout file could cause peculiar behavior. In particular, such errors could cause LyX to regard the current layout as invalid and to attempt to switch to some other layout. \begin_inset Foot status collapsed \begin_layout Plain Layout Really bad syntax errors may even caused LyX to exit. This is because certain sorts of errors may make LyX unable to read \emph on any \emph default layout information. Please be careful. \end_layout \end_inset The LyX team strives to keep LyX stable in such situations, but safe is better than sorry. \begin_inset Foot status collapsed \begin_layout Plain Layout While we're giving advice: make regular backups. And be nice to your mother. \end_layout \end_inset \end_layout \begin_layout Subsection The Module declaration \end_layout \begin_layout Standard A module must begin with a line like the following: \end_layout \begin_layout LyX-Code # \backslash DeclareLyXModule[endnotes.sty]{Endnotes} \end_layout \begin_layout Standard The mandatory argument, in curly brackets, is the name of the module, as it should appear in \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Document\SpecialChar \menuseparator Settings\SpecialChar \menuseparator Modules \end_layout \end_inset . The argument in square brackets is optional: It declares any LaTeX packages on which the module depends. Please note that only packages about which LyX knows should be listed in the square brackets. \begin_inset Foot status collapsed \begin_layout Plain Layout The list of such packages is documented only in the source code. \end_layout \end_inset LyX will not check for arbitrary packages. It is also possible to use the form \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout from->to \end_layout \end_inset as an optional argument, which declares that the module can only be used when there exists a conversion chain between the formats ` \begin_inset Flex Code status collapsed \begin_layout Plain Layout from \end_layout \end_inset ' and ` \begin_inset Flex Code status collapsed \begin_layout Plain Layout to \end_layout \end_inset '. \end_layout \begin_layout Standard The module declaration should then be followed by lines like the following \begin_inset Foot status collapsed \begin_layout Plain Layout Preferably in English if the module should be published with LyX. This description will appear in the list of messages to be translated and will be thus translated with the next interface update. \end_layout \end_inset : \end_layout \begin_layout LyX-Code #DescriptionBegin \end_layout \begin_layout LyX-Code #Adds an endnote inset, in addition to footnotes. \end_layout \begin_layout LyX-Code #You will need to add \backslash theendnotes in TeX-code where you \end_layout \begin_layout LyX-Code #want the endnotes to appear. \end_layout \begin_layout LyX-Code #DescriptionEnd \end_layout \begin_layout LyX-Code #Requires: somemodule | othermodule \end_layout \begin_layout LyX-Code #Excludes: badmodule \end_layout \begin_layout Standard The description is used in \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Document\SpecialChar \menuseparator Settings\SpecialChar \menuseparator Modules \end_layout \end_inset to provide the user with information about what the module does. The \begin_inset Flex Code status collapsed \begin_layout Plain Layout Requires \end_layout \end_inset line is used to identify other modules with which this one must be used; the \begin_inset Flex Code status collapsed \begin_layout Plain Layout Excludes \end_layout \end_inset line is used to identify modules with which this one may not be used. Both are optional, and, as shown, multiple modules should be separated with the pipe symbol: |. Note that the required modules are treated disjunctively: \emph on at least one \emph default of the required modules must be used. Similarly, \emph on no \emph default excluded module may be used. Note that modules are identified here by their \emph on filenames \emph default without the \begin_inset Flex Code status collapsed \begin_layout Plain Layout .module \end_layout \end_inset extension. So \begin_inset Flex Code status collapsed \begin_layout Plain Layout somemodule \end_layout \end_inset is really \begin_inset Flex Code status collapsed \begin_layout Plain Layout somemodule.module \end_layout \end_inset . \end_layout \begin_layout Subsection Format number \end_layout \begin_layout Standard The first non-comment line of any layout file, included file, or module \emph on must \emph default contain the file format number: \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Format \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout int \end_layout \end_inset ] The format of the layout file. \end_layout \begin_layout Standard This tag was introduced with LyX 1.4.0. Layout files from LyX 1.3.x and earlier don't have an explicit file format and are considered to be of format 1. The format for the present version of LyX is format 21. But each version of LyX is capable of reading earlier versions' layout files, just as they are capable of reading files produced by earlier versions of LyX. There is, however, no provision for converting to earlier formats. So LyX 1.6.x will not read layout files in format 21 but only files in format 11 or earlier. \end_layout \begin_layout Subsection \begin_inset CommandInset label LatexCommand label name "sub:General-text-class" \end_inset General text class parameters \end_layout \begin_layout Standard These are general parameters that govern the behavior of an entire document class. (This does \emph on not \emph default mean that they must appear in \begin_inset Flex Code status collapsed \begin_layout Plain Layout .layout \end_layout \end_inset files rather than in modules. A module can contain any layout tag.) \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout AddToHTMLPreamble \end_layout \end_inset Adds information that will be output in the \begin_inset Flex Code status collapsed \begin_layout Plain Layout \end_layout \end_inset block when this document class is output to XHTML. Typically, this would be used to output CSS style information, but it can be used for anything that can appear in \begin_inset Flex Code status collapsed \begin_layout Plain Layout \end_layout \end_inset . Must end with \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout EndPreamble \end_layout \end_inset \begin_inset Quotes erd \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout AddToPreamble \end_layout \end_inset Adds information to the document preamble. Must end with \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout EndPreamble \end_layout \end_inset \begin_inset Quotes erd \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout CiteFormat \end_layout \end_inset Defines formats for use in the display of bibliographic information. See Section \begin_inset CommandInset ref LatexCommand ref reference "sub:Citation-format-description" \end_inset for details. Must end with \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout End \end_layout \end_inset \begin_inset Quotes erd \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout ClassOptions \end_layout \end_inset Describes various global options supported by the document class. See Section \begin_inset space ~ \end_inset \begin_inset CommandInset ref LatexCommand ref reference "sub:ClassOptions" \end_inset for a description. Must end with \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout End \end_layout \end_inset \begin_inset Quotes erd \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Columns \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on 1 \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout 2 \end_layout \end_inset ] Whether the class should \emph on default \emph default to having one or two columns. Can be changed in the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Document\SpecialChar \menuseparator Settings \end_layout \end_inset dialog. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Counter \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset ] This sequence defines the properties for a counter. If the counter does not yet exist, it is created; if it does exist, it is modified. Must end with \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout End \end_layout \end_inset \begin_inset Quotes erd \end_inset . \begin_inset Newline newline \end_inset See Section \begin_inset space ~ \end_inset \begin_inset CommandInset ref LatexCommand ref reference "sub:Counters" \end_inset for details on counters. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout DefaultFont \end_layout \end_inset Sets the default font used to display the document. See Section \begin_inset space ~ \end_inset \begin_inset CommandInset ref LatexCommand ref reference "sub:Font-description" \end_inset for how to declare fonts. Must end with \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout EndFont \end_layout \end_inset \begin_inset Quotes erd \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout DefaultModule \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string] \end_layout \end_inset Specifies a module to be included by default with this document class. The module should be specified by filename without the \begin_inset Flex Code status collapsed \begin_layout Plain Layout .module \end_layout \end_inset extension. The user can still remove the module, but it will be active at the outset. (This applies only when new files are created, or when this class is chosen for an existing document.) \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout DefaultStyle \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset ] This is the style that will be assigned to new paragraphs, usually \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Standard \end_layout \end_inset . This will default to the first defined style if not given, but you are encouraged to use this directive. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout ExcludesModule \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset ] This tag indicates that the module in question—which should be specified by filename without the \begin_inset Flex Code status collapsed \begin_layout Plain Layout .module \end_layout \end_inset extension—cannot be used with this document class. This might be used in a journal-specific layout file to prevent, say, the use of the \begin_inset Flex Code status collapsed \begin_layout Plain Layout theorems-sec \end_layout \end_inset module that numbers theorems by section. This tag may \emph on not \emph default be used in a module. Modules have their own way of excluding other modules (see \begin_inset CommandInset ref LatexCommand ref reference "sub:Layout-modules" \end_inset ). \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Float \end_layout \end_inset Defines a new float. See Section \begin_inset space ~ \end_inset \begin_inset CommandInset ref LatexCommand ref reference "sub:Floats" \end_inset for details. Must end with \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout End \end_layout \end_inset \begin_inset Quotes erd \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout HTMLPreamble \end_layout \end_inset Sets the information that will be output in the \begin_inset Flex Code status collapsed \begin_layout Plain Layout \end_layout \end_inset block when this document class is output to XHTML. Note that this will completely override any prior \begin_inset Flex Code status collapsed \begin_layout Plain Layout HTMLPreamble \end_layout \end_inset or \begin_inset Flex Code status collapsed \begin_layout Plain Layout AddToHTMLPreamble \end_layout \end_inset declarations. (Use \begin_inset Flex Code status collapsed \begin_layout Plain Layout AddToHTMLPreamble \end_layout \end_inset if you just want to add material to the preamble.) Must end with \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout EndPreamble \end_layout \end_inset \begin_inset Quotes erd \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout HTMLTOCSection \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset ] The layout to use for the table of contents, bibliography, and so forth, when the document is output to HTML. For articles, this should normally be Section; for books, Chapter. If it is not given, then LyX will attempt to figure out which layout to use. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout IfCounter \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset ] Modifies the properties of the given counter. If the counter does not exist, the section is ignored. Must end with \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout End \end_layout \end_inset \begin_inset Quotes erd \end_inset . \begin_inset Newline newline \end_inset See Section \begin_inset space ~ \end_inset \begin_inset CommandInset ref LatexCommand ref reference "sub:Counters" \end_inset for details on counters. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout IfStyle \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset ] Modifies the properties of the given paragraph style. If the style does not exist, the section is ignored. Must end with \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout End \end_layout \end_inset \begin_inset Quotes erd \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Input \end_layout \end_inset As its name implies, this command allows you to include another layout definition file within yours to avoid duplicating commands. Common examples are the standard layout files, for example, \begin_inset Flex Code status collapsed \begin_layout Plain Layout stdclass.inc \end_layout \end_inset , which contains most of the basic layouts. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout InsetLayout \end_layout \end_inset This section (re-)defines the layout of an inset. It can be applied to an existing inset or to a new, user-defined inset, e.g., a new character style. Must end with \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout End \end_layout \end_inset \begin_inset Quotes erd \end_inset . \begin_inset Newline newline \end_inset See Section \begin_inset space ~ \end_inset \begin_inset CommandInset ref LatexCommand ref reference "sub:Flex-insets-and" \end_inset for more information. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout LeftMargin \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset ] A string that indicates the width of the left margin on the screen, for example, \begin_inset Quotes eld \end_inset MMMMM \begin_inset Quotes erd \end_inset . (Note that this is not a `length', like \begin_inset Quotes eld \end_inset 2ex \begin_inset Quotes erd \end_inset .) \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout NoCounter \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset ] This command deletes an existing counter, usually one defined in an included file. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout NoFloat \end_layout \end_inset This command deletes an existing float. This is particularly useful when you want to suppress a float that has been defined in an input file. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout NoStyle \end_layout \end_inset This command deletes an existing style. This is particularly useful when you want to suppress a style that has be defined in an input file. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout OutputFormat \end_layout \end_inset A string indicating the file format (as defined in the Preferences dialog) produced by this class. It is mainly useful when \begin_inset Flex Code status collapsed \begin_layout Plain Layout OutputType \end_layout \end_inset is `literate' and one wants to define a new type of literate document. This string is reset to `docbook', `latex', or `literate' when the correspondin g \begin_inset Flex Code status collapsed \begin_layout Plain Layout OutputType \end_layout \end_inset parameter is encountered. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout OutputType \end_layout \end_inset A string indicating what sort of output documents using this class will produce. At present, the options are: `docbook', `latex', and `literate'. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout PageStyle \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on plain \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout empty \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout headings \end_layout \end_inset ] The default pagestyle. Can be changed in the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Document\SpecialChar \menuseparator Settings \end_layout \end_inset dialog. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Preamble \end_layout \end_inset Sets the preamble for the LaTeX document. Note that this will completely override any prior \begin_inset Flex Code status collapsed \begin_layout Plain Layout Preamble \end_layout \end_inset or \begin_inset Flex Code status collapsed \begin_layout Plain Layout AddToPreamble \end_layout \end_inset declarations. (Use \begin_inset Flex Code status collapsed \begin_layout Plain Layout AddToPreamble \end_layout \end_inset if you just want to add material to the preamble.) Must end with \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout EndPreamble \end_layout \end_inset \begin_inset Quotes erd \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Provides \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset ] [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on 0 \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout 1 \end_layout \end_inset ] Whether the class already provides the feature \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset . A feature is in general the name of a package ( \begin_inset Flex Code status collapsed \begin_layout Plain Layout amsmath \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout makeidx \end_layout \end_inset , \SpecialChar \ldots{} ) or a macro ( \begin_inset Flex Code status collapsed \begin_layout Plain Layout url \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout boldsymbol \end_layout \end_inset ,\SpecialChar \ldots{} ); the complete list of supported features is unfortunately not documented outside the LyX source code—but see \begin_inset Flex Code status collapsed \begin_layout Plain Layout LaTeXFeatures.cpp \end_layout \end_inset if you're interested. \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Help\SpecialChar \menuseparator LaTeX Configuration \end_layout \end_inset also gives an overview of the supported packages. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout ProvidesModule \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset ] Indicates that this layout provides the functionality of the module mentioned, which should be specified by the filename without the \begin_inset Flex Code status collapsed \begin_layout Plain Layout .module \end_layout \end_inset extension. This will typically be used if the layout includes the module directly, rather than using the \begin_inset Flex Code status collapsed \begin_layout Plain Layout DefaultModule \end_layout \end_inset tag to indicate that it ought to be used. It could also be used in a module that provided an alternate implementation of the same functionality. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Requires \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset ] Whether the class requires the feature \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset . Multiple features must be separated by commas. Note that you can only request supported features. (Again, see \begin_inset Flex Code status collapsed \begin_layout Plain Layout LaTeXFeatures.cpp \end_layout \end_inset for a list of these.) \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout RightMargin \end_layout \end_inset A string that indicates the width of the right margin on the screen, for example, \begin_inset Quotes eld \end_inset MMMMM \begin_inset Quotes erd \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout SecNumDepth \end_layout \end_inset Sets which divisions get numbered. Corresponds to the \begin_inset Flex Code status collapsed \begin_layout Plain Layout secnumdepth \end_layout \end_inset counter in LaTeX. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Sides \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on 1 \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout 2 \end_layout \end_inset ] Whether the class-default should be printing on one or both sides of the paper. Can be changed in the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Document\SpecialChar \menuseparator Settings \end_layout \end_inset dialog. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Style \end_layout \end_inset This sequence defines a paragraph style. If the style does not yet exist, it is created; if it does exist, its parameter s are modified. Must end with \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout End \end_layout \end_inset \begin_inset Quotes erd \end_inset . \begin_inset Newline newline \end_inset See Section \begin_inset space ~ \end_inset \begin_inset CommandInset ref LatexCommand ref reference "sub:Paragraph-Styles" \end_inset for details on paragraph styles. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout TitleLatexName \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string="maketitle" \end_layout \end_inset ] The name of the command or environment to be used with \begin_inset Flex Code status collapsed \begin_layout Plain Layout TitleLatexType \end_layout \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout TitleLatexType \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on CommandAfter \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout Environment \end_layout \end_inset ] Indicates what kind of markup is used to define the title of a document. \begin_inset Flex Code status collapsed \begin_layout Plain Layout CommandAfter \end_layout \end_inset means that the macro with name \begin_inset Flex Code status collapsed \begin_layout Plain Layout TitleLatexName \end_layout \end_inset will be inserted after the last layout which has \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout InTitle 1 \end_layout \end_inset \begin_inset Quotes erd \end_inset . \begin_inset Flex Code status collapsed \begin_layout Plain Layout Environment \end_layout \end_inset corresponds to the case where the block of paragraphs which have \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout InTitle 1 \end_layout \end_inset \begin_inset Quotes erd \end_inset should be enclosed into the \begin_inset Flex Code status collapsed \begin_layout Plain Layout TitleLatexName \end_layout \end_inset environment. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout TocDepth \end_layout \end_inset Sets which divisions are included in the table of contents. Corresponds to the \begin_inset Flex Code status collapsed \begin_layout Plain Layout tocdepth \end_layout \end_inset counter in LaTeX. \end_layout \begin_layout Subsection \begin_inset Flex Code status collapsed \begin_layout Plain Layout ClassOptions \end_layout \end_inset section \begin_inset CommandInset label LatexCommand label name "sub:ClassOptions" \end_inset \end_layout \begin_layout Standard The \begin_inset Flex Code status collapsed \begin_layout Plain Layout ClassOptions \end_layout \end_inset section can contain the following entries: \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout FontSize \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string="10|11|12" \end_layout \end_inset ] The list of available font sizes for the document's main font, separated by \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout | \end_layout \end_inset \begin_inset Quotes erd \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Header \end_layout \end_inset Used to set the DTD line with XML-based output classes. E. \begin_inset space \thinspace{} \end_inset g.: PUBLIC \begin_inset Quotes eld \end_inset -//OASIS//DTD DocBook V4.2//EN \begin_inset Quotes erd \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout PageStyle \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string="empty|plain|headings|fancy" \end_layout \end_inset ] The list of available page styles, separated by \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout | \end_layout \end_inset \begin_inset Quotes erd \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Other \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string="" \end_layout \end_inset ] Some document class options, separated by a comma, that will be added to the optional part of the \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash documentclass \end_layout \end_inset command. \end_layout \begin_layout Standard The \begin_inset Flex Code status collapsed \begin_layout Plain Layout ClassOptions \end_layout \end_inset section must end with \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout End \end_layout \end_inset \begin_inset Quotes erd \end_inset . \end_layout \begin_layout Subsection Paragraph styles \begin_inset CommandInset label LatexCommand label name "sub:Paragraph-Styles" \end_inset \end_layout \begin_layout Standard A paragraph style description looks like this: \begin_inset Foot status collapsed \begin_layout Plain Layout Note that this will either define a new style or modify an existing one. \end_layout \end_inset \end_layout \begin_layout LyX-Code Style \family roman \emph on name \end_layout \begin_layout LyX-Code ... \end_layout \begin_layout LyX-Code End \end_layout \begin_layout Standard where the following commands are allowed: \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Align \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on block \emph default , left, right, center \end_layout \end_inset ] Paragraph alignment. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout AlignPossible \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on block \emph default , left, right, center \end_layout \end_inset ] A comma separated list of permitted alignments. (Some LaTeX styles prohibit certain alignments, since those wouldn't make sense. For example a right-aligned or centered enumeration isn't possible.) \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout BabelPreamble \end_layout \end_inset Note that this will completely override any prior \begin_inset Flex Code status collapsed \begin_layout Plain Layout BabelPreamble \end_layout \end_inset declaration for this style. Must end with \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout EndBabelPreamble \end_layout \end_inset \begin_inset Quotes erd \end_inset . See section \begin_inset CommandInset ref LatexCommand ref reference "sub:I18n" \end_inset for details on its use. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout BottomSep \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout float=0 \end_layout \end_inset ] \begin_inset Foot status collapsed \begin_layout Plain Layout Note that a `float' here is a real number, such as: 1.5. \end_layout \end_inset The vertical space with which the last of a chain of paragraphs with this style is separated from the following paragraph. If the next paragraph has another style, the separations are not simply added, but the maximum is taken. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Category \end_layout \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout [string] \end_layout \end_inset The category for this style. This is used to group related styles in the style combobox on the toolbar. Any string can be used, but you may want to use existing categories with your own styles. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout CommandDepth \end_layout \end_inset Depth of XML command. Used only with XML-type formats. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout CopyStyle \end_layout \end_inset \begin_inset CommandInset label LatexCommand label name "des:CopyStyle" \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout [string] \end_layout \end_inset Copies all the features of an existing style into the current one. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout DependsOn \end_layout \end_inset The name of a style whose preamble should be output \emph on before \emph default this one. This allows to ensure some ordering of the preamble snippets when macros definitions depend on one another. \begin_inset Foot status collapsed \begin_layout Plain Layout Note that, besides that functionality, there is no way to ensure any ordering of preambles. The ordering that you see in a given version of LyX may change without warning in later versions. \end_layout \end_inset \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout EndLabeltype \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on No_Label \emph default , Box, Filled_Box, Static \end_layout \end_inset ] The type of label that stands at the end of the paragraph (or sequence of paragraphs if \begin_inset Flex Code status collapsed \begin_layout Plain Layout LatexType \end_layout \end_inset is \begin_inset Flex Code status collapsed \begin_layout Plain Layout Environment \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout Item_Environment \end_layout \end_inset or \begin_inset Flex Code status collapsed \begin_layout Plain Layout List_Environment \end_layout \end_inset ). \begin_inset Flex Code status collapsed \begin_layout Plain Layout No_Label \end_layout \end_inset means \begin_inset Quotes eld \end_inset nothing \begin_inset Quotes erd \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout Box \end_layout \end_inset (resp. \begin_inset Flex Code status collapsed \begin_layout Plain Layout \begin_inset space ~ \end_inset Filled_Box \end_layout \end_inset ) is a white (resp. \begin_inset space ~ \end_inset black) square suitable for end of proof markers, \begin_inset Flex Code status collapsed \begin_layout Plain Layout Static \end_layout \end_inset is an explicit text string. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout EndLabelString \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string="" \end_layout \end_inset ] The string used for a label with a \begin_inset Flex Code status collapsed \begin_layout Plain Layout Static \end_layout \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout EndLabelType \end_layout \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Font \end_layout \end_inset The font used for both the text body \emph on and \emph default the label. See section \begin_inset space ~ \end_inset \begin_inset CommandInset ref LatexCommand ref reference "sub:Font-description" \end_inset . Note that defining this font automatically defines the \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelFont \end_layout \end_inset to the same value. So you should define this one first if you also want to define \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelFont \end_layout \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout FreeSpacing \end_layout \end_inset \begin_inset CommandInset label LatexCommand label name "des:FreeSpacing" \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on 0 \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout 1 \end_layout \end_inset ] Usually LyX doesn't allow you to insert more than one space between words, since a space is considered as the separation between two words, not a character or symbol of its own. This is a very fine thing but sometimes annoying, for example, when typing program code or plain LaTeX code. For this reason, \begin_inset Flex Code status collapsed \begin_layout Plain Layout FreeSpacing \end_layout \end_inset can be enabled. Note that LyX will create protected blanks for the additional blanks when in another mode than LaTeX-mode. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout HTML* \end_layout \end_inset These tags are used with XHTML output. See \begin_inset CommandInset ref LatexCommand ref reference "sub:Paragraph-Style-XHTML" \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout InnerTag \end_layout \end_inset [[FIXME]] (Used only with XML-type formats.) \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout InPreamble \end_layout \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout [1, 0] \end_layout \end_inset If 1, marks the style as to be included in the document preamble rather than in the document body. This is useful for document classes that want such information as the title and author to appear in the preamble. Note that this works only for styles for which the \begin_inset Flex Code status collapsed \begin_layout Plain Layout LatexType \end_layout \end_inset is \begin_inset Flex Code status collapsed \begin_layout Plain Layout Command \end_layout \end_inset or \begin_inset Flex Code status collapsed \begin_layout Plain Layout Paragraph \end_layout \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout InTitle \end_layout \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout [1, 0] \end_layout \end_inset If 1, marks the style as being part of a title block (see also the \begin_inset Flex Code status collapsed \begin_layout Plain Layout TitleLatexType \end_layout \end_inset and \begin_inset Flex Code status collapsed \begin_layout Plain Layout TitleLatexName \end_layout \end_inset global entries). \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout ItemSep \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout float=0 \end_layout \end_inset ] This provides extra space between paragraphs that have the same style. If you put other styles into an environment, each is separated with the environment's \begin_inset Flex Code status collapsed \begin_layout Plain Layout Parsep \end_layout \end_inset . But the whole items of the environment are additionally separated with this \begin_inset Flex Code status collapsed \begin_layout Plain Layout Itemsep \end_layout \end_inset . Note that this is a \emph on multiplier. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout ItemTag \end_layout \end_inset [[FIXME]] (Used only with XML-type formats.) \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout KeepEmpty \end_layout \end_inset \begin_inset CommandInset label LatexCommand label name "des:KeepEmpty" \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on 0 \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout 1 \end_layout \end_inset ] Usually LyX does not allow you to leave a paragraph empty, since it would lead to empty LaTeX output. There are some cases where this could be desirable however: in a letter template, the required fields can be provided as empty fields, so that people do not forget them; in some special classes, a style can be used as some kind of break, which does not contain actual text. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelBottomsep \end_layout \end_inset [float=0] The vertical space between the label and the text body. Only used for labels that are above the text body ( \begin_inset Flex Code status collapsed \begin_layout Plain Layout Top_Environment \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout Centered_Top_Environment \end_layout \end_inset ). \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelCounter \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string="" \end_layout \end_inset ] \begin_inset Newline newline \end_inset The name of the counter for automatic numbering. \begin_inset Newline newline \end_inset This \emph on must \emph default be given if \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelType \end_layout \end_inset is \begin_inset Flex Code status collapsed \begin_layout Plain Layout Counter \end_layout \end_inset . In that case, the counter will be stepped each time the style appears. \begin_inset Newline newline \end_inset This \emph on may \emph default also be given if \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelType \end_layout \end_inset is \begin_inset Flex Code status collapsed \begin_layout Plain Layout Enumerate \end_layout \end_inset , though this case is a bit complicated. Suppose you declare \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelCounter myenum \end_layout \end_inset \begin_inset Quotes erd \end_inset . Then the actual counters used are \begin_inset Flex Code status collapsed \begin_layout Plain Layout myenumi \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout myenumii \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout myenumiii \end_layout \end_inset , and \begin_inset Flex Code status collapsed \begin_layout Plain Layout myenumiv \end_layout \end_inset , much as in LaTeX. These counters must all be declared separately. \begin_inset Newline newline \end_inset See Section \begin_inset CommandInset ref LatexCommand ref reference "sub:Counters" \end_inset for details on counters. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelFont \end_layout \end_inset The font used for the label. See section \begin_inset space ~ \end_inset \begin_inset CommandInset ref LatexCommand ref reference "sub:Font-description" \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelIndent \end_layout \end_inset Text that indicates how far a label should be indented. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Labelsep \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string="" \end_layout \end_inset ] The horizontal space between the label and the text body. Only used for labels that are not above the text body. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelString \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string="" \end_layout \end_inset ] The string used for a label with a \begin_inset Flex Code status collapsed \begin_layout Plain Layout Static \end_layout \end_inset labeltype. When \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelCounter \end_layout \end_inset is set, this string can be contain the special formatting commands described in Section \begin_inset CommandInset ref LatexCommand ref reference "sub:Counters" \end_inset . \begin_inset Foot status collapsed \begin_layout Plain Layout For the sake of backwards compatibility, the string \begin_inset Flex Code status collapsed \begin_layout Plain Layout @ \emph on style-name \emph default @ \end_layout \end_inset will be replaced by the expanded \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelString \end_layout \end_inset of style \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on style-name \end_layout \end_inset . This feature is now obsolete and should be replaced by the mechanisms of Section \begin_inset CommandInset ref LatexCommand ref reference "sub:Counters" \end_inset . \end_layout \end_inset \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelStringAppendix \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string="" \end_layout \end_inset ] This is used inside the appendix instead of \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelString \end_layout \end_inset . Note that every \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelString \end_layout \end_inset statement resets \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelStringAppendix \end_layout \end_inset too. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelTag \end_layout \end_inset [FIXME] (Used only with XML-type formats.) \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelType \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on No_Label \emph default , Manual, Static, Top_Environment, Centered_Top_Environment, Counter, Sensitive, Enumerate, Itemize, Bibliography \end_layout \end_inset ] \end_layout \begin_deeper \begin_layout Itemize \begin_inset Flex Code status collapsed \begin_layout Plain Layout Manual \end_layout \end_inset means the label is the very first word (up to the first real blank). Use protected spaces (like \begin_inset space ~ \end_inset that one) if you want more than one word as the label. \end_layout \begin_layout Itemize \begin_inset Flex Code status collapsed \begin_layout Plain Layout Static \end_layout \end_inset means the label is simply whatever \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelString \end_layout \end_inset declares it to be. Note that this really is `static'. \end_layout \begin_layout Itemize \begin_inset Flex Code status collapsed \begin_layout Plain Layout Top_Environment \end_layout \end_inset and \begin_inset Flex Code status collapsed \begin_layout Plain Layout Centered_Top_Environment \end_layout \end_inset are special cases of \begin_inset Flex Code status collapsed \begin_layout Plain Layout Static \end_layout \end_inset . The label will be printed above the paragraph, but only at the top of an environment or the top of a chain of paragraphs with this style. This might be used with the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Abstract \end_layout \end_inset style, for example. \end_layout \begin_layout Itemize \begin_inset Flex Code status collapsed \begin_layout Plain Layout Sensitive \end_layout \end_inset is a special case for the caption-labels \begin_inset Quotes eld \end_inset Figure \begin_inset Quotes erd \end_inset and \begin_inset Quotes eld \end_inset Table \begin_inset Quotes erd \end_inset . \begin_inset Flex Code status collapsed \begin_layout Plain Layout Sensitive \end_layout \end_inset means the (hardcoded) label string depends on the kind of float: It is hardcoded to be `FloatType N', where N is the value of the counter associated with the float. \end_layout \begin_layout Itemize The \begin_inset Flex Code status collapsed \begin_layout Plain Layout Counter \end_layout \end_inset label type defines automatically numbered labels. The \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelString \end_layout \end_inset will be expanded to resolve any counter references it contains: For example, it might be \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout Section \backslash thechapter. \backslash thesection \end_layout \end_inset \begin_inset Quotes erd \end_inset . See Section \begin_inset CommandInset ref LatexCommand ref reference "sub:Counters" \end_inset for more information on counters. \end_layout \begin_layout Itemize \begin_inset Flex Code status collapsed \begin_layout Plain Layout Enumerate \end_layout \end_inset produces the usual sort of enumeration labels. At present, it is hardcoded to use Arabic numerals, lowercase letters, small Roman numerals, and uppercase letters for the four possible depths. \end_layout \begin_layout Itemize \begin_inset Flex Code status collapsed \begin_layout Plain Layout Itemize \end_layout \end_inset produces various bullets at the different levels. It is also hardcoded. \end_layout \begin_layout Itemize \begin_inset Flex Code status collapsed \begin_layout Plain Layout Bibliography \end_layout \end_inset is used internally by LyX and should be used only with \begin_inset Flex Code status collapsed \begin_layout Plain Layout LatexType BibEnvironment \end_layout \end_inset . \end_layout \end_deeper \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout LangPreamble \end_layout \end_inset Note that this will completely override any prior \begin_inset Flex Code status collapsed \begin_layout Plain Layout LangPreamble \end_layout \end_inset declaration for this style. Must end with \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout EndLangPreamble \end_layout \end_inset \begin_inset Quotes erd \end_inset . See section \begin_inset CommandInset ref LatexCommand ref reference "sub:I18n" \end_inset for details on its use. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout LatexName \end_layout \end_inset The name of the corresponding LaTeX stuff. Either the environment or command name. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout LatexParam \end_layout \end_inset An optional parameter for the corresponding \begin_inset Flex Code status collapsed \begin_layout Plain Layout LatexName \end_layout \end_inset stuff. This parameter cannot be changed from within LyX. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout LatexType \end_layout \end_inset \begin_inset CommandInset label LatexCommand label name "des:LatexType" \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on Paragraph \emph default , Command, Environment, Item_Environment, \end_layout \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout List_Environment, Bib_Environment \end_layout \end_inset ] How the style should be translated into LaTeX. \begin_inset Foot status collapsed \begin_layout Plain Layout \begin_inset Flex Code status collapsed \begin_layout Plain Layout LatexType \end_layout \end_inset is perhaps a bit misleading, since these rules apply to SGML classes, too. Visit the SGML class files for specific examples. \end_layout \end_inset \end_layout \begin_deeper \begin_layout Itemize \begin_inset Flex Code status collapsed \begin_layout Plain Layout Paragraph \end_layout \end_inset means nothing special. \end_layout \begin_layout Itemize \begin_inset Flex Code status collapsed \begin_layout Plain Layout Command \end_layout \end_inset means \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash \emph on LatexName \emph default {\SpecialChar \ldots{} } \end_layout \end_inset . \end_layout \begin_layout Itemize \begin_inset Flex Code status collapsed \begin_layout Plain Layout Environment \end_layout \end_inset means \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash begin{ \emph on LatexName \emph default }\SpecialChar \ldots{} \backslash end{ \emph on LatexName \emph default } \end_layout \end_inset . \end_layout \begin_layout Itemize \begin_inset Flex Code status collapsed \begin_layout Plain Layout Item_Environment \end_layout \end_inset is the same as \begin_inset Flex Code status collapsed \begin_layout Plain Layout Environment \end_layout \end_inset , except that an \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash item \end_layout \end_inset is generated for each paragraph of this environment. \end_layout \begin_layout Itemize \begin_inset Flex Code status collapsed \begin_layout Plain Layout List_Environment \end_layout \end_inset is the same as \begin_inset Flex Code status collapsed \begin_layout Plain Layout Item_Environment \end_layout \end_inset , except that \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelWidthString \end_layout \end_inset is passed as an argument to the environment. \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelWidthString \end_layout \end_inset can be defined in the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout \bar under Edit \bar default \SpecialChar \menuseparator \bar under P \bar default aragraph \begin_inset space ~ \end_inset settings \end_layout \end_inset dialog. \end_layout \begin_layout Standard Putting the last few things together, the LaTeX output will be either: \end_layout \begin_layout LyX-Code \backslash latexname[latexparam]{\SpecialChar \ldots{} } \end_layout \begin_layout Standard or: \end_layout \begin_layout LyX-Code \backslash begin{latexname}[latexparam] \SpecialChar \ldots{} \backslash end{latexname}. \end_layout \begin_layout Standard depending upon the LaTeX type. \end_layout \end_deeper \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout LeftMargin \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string="" \end_layout \end_inset ] If you put styles into environments, the leftmargins are not simply added, but added with a factor \begin_inset Formula $\frac{4}{depth+4}$ \end_inset . Note that this parameter is also used when the margin is defined as \begin_inset Flex Code status collapsed \begin_layout Plain Layout Manual \end_layout \end_inset or \begin_inset Flex Code status collapsed \begin_layout Plain Layout Dynamic \end_layout \end_inset . Then it is added to the manual or dynamic margin. \begin_inset Newline newline \end_inset The argument is passed as a string. For example \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout MM \end_layout \end_inset \begin_inset Quotes erd \end_inset means that the paragraph is indented with the width of \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout MM \end_layout \end_inset \begin_inset Quotes erd \end_inset in the normal font. You can get a negative width by prefixing the string with \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout - \end_layout \end_inset \begin_inset Quotes erd \end_inset . This way was chosen so that the look is the same with each used screen font. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Margin \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on Static \emph default , Manual, Dynamic, First_Dynamic, Right_Address_Box \end_layout \end_inset ] \begin_inset Newline newline \end_inset The kind of margin that the style has on the left side. \begin_inset Flex Code status collapsed \begin_layout Plain Layout Static \end_layout \end_inset just means a fixed margin. \begin_inset Flex Code status collapsed \begin_layout Plain Layout Manual \end_layout \end_inset means that the left margin depends on the string entered in the \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout Edit\SpecialChar \menuseparator Paragraph \begin_inset space ~ \end_inset Settings \end_layout \end_inset dialog. This is used to typeset nice lists without tabulators. \begin_inset Flex Code status collapsed \begin_layout Plain Layout Dynamic \end_layout \end_inset means that the margin depends on the size of the label. This is used for automatic enumerated headlines. It is obvious that the headline \begin_inset Quotes eld \end_inset 5.4.3.2.1 Very long headline \begin_inset Quotes erd \end_inset must have a wider left margin (as wide as \begin_inset Quotes eld \end_inset 5.4.3.2.1 \begin_inset Quotes erd \end_inset plus the space) than \begin_inset Quotes eld \end_inset 3.2 Very long headline \begin_inset Quotes erd \end_inset , even if standard \begin_inset Quotes eld \end_inset word processors \begin_inset Quotes erd \end_inset are not able to do this. \begin_inset Flex Code status collapsed \begin_layout Plain Layout First_Dynamic \end_layout \end_inset is similar, but only the very first row of the paragraph is dynamic, while the others are static; this is used, for example, for descriptions. \begin_inset Flex Code status collapsed \begin_layout Plain Layout Right_Address_Box \end_layout \end_inset means the margin is chosen in a way that the longest row of this paragraph fits to the right margin. This is used to typeset an address on the right edge of the page. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout NeedProtect \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on 0 \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout 1 \end_layout \end_inset ] Whether fragile commands in this style should be \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash protect \end_layout \end_inset 'ed. (Note: This is \emph on not \emph default whether this command should itself be protected.) \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Newline \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout 0 \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on 1 \end_layout \end_inset ] Whether newlines are translated into LaTeX newlines ( \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash \backslash \end_layout \end_inset ) or not. The translation can be switched off to allow more comfortable LaTeX editing inside LyX. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout NextNoIndent \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout 1 \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on 0 \end_layout \end_inset ] If set to true, and if \begin_inset Flex Code status collapsed \begin_layout Plain Layout DefaultStyle \end_layout \end_inset (usually \begin_inset Flex Code status collapsed \begin_layout Plain Layout Standard \end_layout \end_inset ) paragraphs are being indented, then the indentation of such a paragraph following one of this type will be suppressed. (So this will not affect the display of non-default paragraphs.) \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout ObsoletedBy \end_layout \end_inset Name of a style that has replaced this style. This is used to rename a style, while keeping backward compatibility. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout OptionalArgs \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout int=0 \end_layout \end_inset ] The number of optional arguments that can be used with this style. This is useful for things like section headings, and only makes sense with LaTeX. Note that, on output, the optional arguments will all precede any required arguments (see below). So one can have constructs like: \end_layout \begin_deeper \begin_layout LyX-Code \backslash mycmd[opt1]{req1}{contents of paragraph} \end_layout \begin_layout Standard but one cannot have things like: \end_layout \begin_layout LyX-Code \backslash mycmd[opt1]{req1}[opt2]{contents of paragraph} \end_layout \begin_layout Standard at least, not without ERT (with which you can have anything). \end_layout \end_deeper \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout ParbreakIsNewline \end_layout \end_inset \begin_inset CommandInset label LatexCommand label name "des:ParbreakIsNewline" \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on 0 \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout 1 \end_layout \end_inset ] Indicates that paragraphs will not be separated by an empty line in LaTeX output, but only by a line break; together with \begin_inset Flex Code status collapsed \begin_layout Plain Layout PassThru 1 \end_layout \end_inset , this allows to emulate a plain text editor (like the ERT inset). \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout ParIndent \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string="" \end_layout \end_inset ] The indent of the very first line of a paragraph. The \begin_inset Flex Code status collapsed \begin_layout Plain Layout Parindent \end_layout \end_inset will be fixed for a certain style. The exception is the default style, since the indentation for these paragraphs can be prohibited with \begin_inset Flex Code status collapsed \begin_layout Plain Layout NextNoIndent \end_layout \end_inset . Also, \begin_inset Flex Code status collapsed \begin_layout Plain Layout Standard \end_layout \end_inset style paragraphs inside environments use the \begin_inset Flex Code status collapsed \begin_layout Plain Layout Parindent \end_layout \end_inset of the environment, not their native one. For example, \begin_inset Flex Code status collapsed \begin_layout Plain Layout Standard \end_layout \end_inset paragraphs inside an enumeration are not indented. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Parsep \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout float=0 \end_layout \end_inset ] The vertical space between two paragraphs of this style. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Parskip \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout float=0 \end_layout \end_inset ] LyX allows the user to choose either \begin_inset Quotes eld \end_inset indent \begin_inset Quotes erd \end_inset or \begin_inset Quotes eld \end_inset skip \begin_inset Quotes erd \end_inset to typeset a document. When \begin_inset Quotes eld \end_inset indent \begin_inset Quotes erd \end_inset is chosen, this value is completely ignored. When \begin_inset Quotes eld \end_inset skip \begin_inset Quotes erd \end_inset is chosen, the parindent of a LaTeXtype \begin_inset Quotes eld \end_inset Paragraph \begin_inset Quotes erd \end_inset style is ignored and all paragraphs are separated by this parskip argument. The vertical space is calculated with \begin_inset Flex Code status collapsed \begin_layout Plain Layout value \begin_inset space ~ \end_inset * DefaultHeight \end_layout \end_inset where \begin_inset Flex Code status collapsed \begin_layout Plain Layout DefaultHeight \end_layout \end_inset is the height of a row with the normal font. This way, the look stays the same with different screen fonts. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout PassThru \end_layout \end_inset \begin_inset CommandInset label LatexCommand label name "des:PassThru" \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on 0 \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout 1 \end_layout \end_inset ] Whether the contents of this paragraph should be output in raw form, meaning without special translations that LaTeX would require. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Preamble \end_layout \end_inset \begin_inset CommandInset label LatexCommand label name "des:Preamble" \end_inset Information to be included in the LaTeX preamble when this style is used. Used to define macros, load packages, etc., required by this particular style. Must end with \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout EndPreamble \end_layout \end_inset \begin_inset Quotes erd \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout RefPrefix \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset ] The prefix to use when creating labels referring to paragraphs of this type. This allows the use of formatted references. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout RequiredArgs \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout int=0 \end_layout \end_inset ] The number of required arguments that the LaTeX command or environment corresponding to this style expects. In the case of a command, these are required arguments \emph on other than \emph default that associated with the content of the paragraph itself. These do not actually have to be provided: LyX will output empty arguments if necessary. Note that optional arguments will be output before required arguments. See the discussion of the \begin_inset Flex Code status collapsed \begin_layout Plain Layout OptionalArgs \end_layout \end_inset tag above for more information. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Requires \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset ] \begin_inset CommandInset label LatexCommand label name "des:Requires" \end_inset Whether the style requires the feature \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset . See the description of \begin_inset Flex Code status collapsed \begin_layout Plain Layout Provides \end_layout \end_inset above (page \begin_inset CommandInset ref LatexCommand pageref reference "des:FreeSpacing" \end_inset ) for information on `features'. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout RightMargin \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string="" \end_layout \end_inset ] Similar to \begin_inset Flex Code status collapsed \begin_layout Plain Layout LeftMargin \end_layout \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Spacing \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on single \emph default , onehalf, double, other \end_layout \end_inset \emph on value \emph default ] This defines what the default spacing should be in the style. The arguments \begin_inset Flex Code status collapsed \begin_layout Plain Layout single \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout onehalf \end_layout \end_inset and \begin_inset Flex Code status collapsed \begin_layout Plain Layout double \end_layout \end_inset correspond respectively to a multiplier value of 1, 1.25 and 1.667. If you specify the argument \begin_inset Flex Code status collapsed \begin_layout Plain Layout other \end_layout \end_inset , then you should also provide a numerical argument which will be the actual multiplier value. Note that, contrary to other parameters, \begin_inset Flex Code status collapsed \begin_layout Plain Layout Spacing \end_layout \end_inset implies the generation of specific LaTeX code, using the package \family roman \begin_inset Flex Code status collapsed \begin_layout Plain Layout setspace.sty \end_layout \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Spellcheck \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout 0 \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on 1 \end_layout \end_inset ] Spellcheck paragraphs of this style. Default is true. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout TextFont \end_layout \end_inset The font used for the text body . See section \begin_inset CommandInset ref LatexCommand ref reference "sub:Font-description" \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout TocLevel \end_layout \end_inset \series medium \begin_inset Flex Code status collapsed \begin_layout Plain Layout \series medium [int] \end_layout \end_inset \series default The level of the style in the table of contents. This is used for automatic numbering of section headings. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout TopSep \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout float=0 \end_layout \end_inset ] The vertical space with which the very first of a chain of paragraphs with this style is separated from the previous paragraph. If the previous paragraph has another style, the separations are not simply added, but the maximum is taken. \end_layout \begin_layout Subsection \begin_inset CommandInset label LatexCommand label name "sub:I18n" \end_inset Internationalization of Paragraph Styles \end_layout \begin_layout Standard LyX has long supported internationalization of layout information, but, until version 2.0, this applied only to the user interface and not to, say, PDF output. Thus, French authors were forced to resort to ugly hacks if they wanted ` \lang french Théorème \lang english 1' instead of `Theorem 1'. Thanks to Georg Baum, that is no longer the case. \end_layout \begin_layout Standard If a \begin_inset Flex Code status collapsed \begin_layout Plain Layout Style \end_layout \end_inset defines text that is to appear in the typeset document, it may use \begin_inset Flex Code status collapsed \begin_layout Plain Layout LangPreamble \end_layout \end_inset and \begin_inset Flex Code status collapsed \begin_layout Plain Layout BabelPreamble \end_layout \end_inset to support non-English and even multi-language documents correctly. The following excerpt (from the \begin_inset Flex Code status collapsed \begin_layout Plain Layout theorems-ams.inc \end_layout \end_inset file) shows how this works: \end_layout \begin_layout LyX-Code Preamble \end_layout \begin_deeper \begin_layout LyX-Code \backslash theoremstyle{remark} \end_layout \begin_layout LyX-Code \backslash newtheorem{claim}[thm]{ \backslash protect \backslash claimname} \end_layout \begin_layout LyX-Code EndPreamble \end_layout \begin_layout LyX-Code LangPreamble \end_layout \begin_layout LyX-Code \backslash providecommand{ \backslash claimname}{_(Claim)} \end_layout \begin_layout LyX-Code EndLangPreamble \end_layout \begin_layout LyX-Code BabelPreamble \end_layout \begin_layout LyX-Code \backslash addto \backslash captions$$lang{ \backslash renewcommand{ \backslash claimname}{_(Claim)}} \end_layout \begin_layout LyX-Code EndBabelPreamble \end_layout \end_deeper \begin_layout Standard In principle, any legal LaTeX may appear in the \begin_inset Flex Code status collapsed \begin_layout Plain Layout LangPreamble \end_layout \end_inset and \begin_inset Flex Code status collapsed \begin_layout Plain Layout BabelPreamble \end_layout \end_inset tags, but in practice they will typically look as they do here. The key to correct translation of the typeset text is the definition of the LaTeX command \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash claimname \end_layout \end_inset and its use in \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash newtheorem \end_layout \end_inset . \end_layout \begin_layout Standard The \begin_inset Flex Code status collapsed \begin_layout Plain Layout LangPreamble \end_layout \end_inset tag provides for internationalization based upon the overall language of the document. The contents of the tag will be included in the preamble, just as with the \begin_inset Flex Code status collapsed \begin_layout Plain Layout Preamble \end_layout \end_inset tag. What makes it special is the use of the \begin_inset Quotes eld \end_inset function \begin_inset Quotes erd \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout _() \end_layout \end_inset , which will be replaced, when LyX produces LaTeX output, with the translation of its argument into the document language. \end_layout \begin_layout Standard The \begin_inset Flex Code status collapsed \begin_layout Plain Layout BabelPreamble \end_layout \end_inset tag is more complex, since it is meant to provide support for multi-language documents and so offers an interface to the \begin_inset Flex Code status collapsed \begin_layout Plain Layout babel \end_layout \end_inset package. Its contents will be added to the preamble once for each language that appears in the document. In this case, the argument to \begin_inset Flex Code status collapsed \begin_layout Plain Layout _() \end_layout \end_inset will be replaced with its translation into the language in question; the expression \begin_inset Flex Code status collapsed \begin_layout Plain Layout $$lang \end_layout \end_inset is replaced by the language name (as used by the babel package). \end_layout \begin_layout Standard A German document that also included a French section would thus have the following in the preamble: \end_layout \begin_layout LyX-Code \backslash addto \backslash captionsfrench{ \backslash renewcommand{ \backslash claimname}{Affirmation}} \end_layout \begin_layout LyX-Code \backslash addto \backslash captionsngerman{ \backslash renewcommand{ \backslash claimname}{Behauptung}} \end_layout \begin_layout LyX-Code \backslash providecommand{ \backslash claimname}{Behauptung} \end_layout \begin_layout Standard LaTeX and \begin_inset Flex Code status collapsed \begin_layout Plain Layout babel \end_layout \end_inset will then conspire to produce the correct text in the output. \end_layout \begin_layout Standard One important point to note here is that the translations are provided by LyX itself, through the same mechanism it uses for internationalization of the user interface. This means, in effect, that \begin_inset Flex Code status collapsed \begin_layout Plain Layout LangPreamble \end_layout \end_inset and \begin_inset Flex Code status collapsed \begin_layout Plain Layout BabelPreamble \end_layout \end_inset are really only of use in layout files that are provided with LyX, since text entered in user-created layout files will not be seen by LyX's internation alization routines. That said, however, any layout created with the intention that it will be included with LyX should use these tags where appropriate. \end_layout \begin_layout Subsection Floats \begin_inset CommandInset label LatexCommand label name "sub:Floats" \end_inset \end_layout \begin_layout Standard Since version 1.3.0 of LyX, it is both possible and necessary to define the floats ( \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout figure \end_layout \end_inset , \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout table \end_layout \end_inset , \SpecialChar \ldots{} ) in the text class itself. Standard floats are included in the file \begin_inset Flex Code status collapsed \begin_layout Plain Layout stdfloats.inc \end_layout \end_inset , so you may have to do no more than add \end_layout \begin_layout LyX-Code Input stdfloats.inc \end_layout \begin_layout Standard to your layout file. If you want to implement a text class that proposes some other float types (like the AGU class bundled with LyX), the information below will hopefully help you: \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Extension \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset = \begin_inset Quotes erd \end_inset \begin_inset Quotes erd \end_inset ] The file name extension of an auxiliary file for the list of figures (or whatever). LaTeX writes the captions to this file. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout GuiName \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset = \begin_inset Quotes erd \end_inset \begin_inset Quotes erd \end_inset ] The string that will be used in the menus and also for the caption. This is translated to the current language if babel is used. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout HTML* \end_layout \end_inset These are used for XHTML output. See \begin_inset CommandInset ref LatexCommand ref reference "sec:Tags-for-XHTML" \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout IsPredefined \end_layout \end_inset [ \emph on \begin_inset Flex Code status open \begin_layout Plain Layout 0 \end_layout \end_inset \emph default , \begin_inset Flex Code status collapsed \begin_layout Plain Layout 1 \end_layout \end_inset ] Indicates whether the float is already defined in the document class or if we instead need to load \begin_inset Flex Code status collapsed \begin_layout Plain Layout float.sty \end_layout \end_inset and use what it provides to define it on-the-fly. The default is \begin_inset Flex Code status collapsed \begin_layout Plain Layout 0 \end_layout \end_inset , which means: use \begin_inset Flex Code status collapsed \begin_layout Plain Layout float.sty \end_layout \end_inset . It should be set to \begin_inset Flex Code status collapsed \begin_layout Plain Layout 1 \end_layout \end_inset if the float is already defined by the LaTeX document class. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout ListCommand \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset = \begin_inset Quotes erd \end_inset \begin_inset Quotes erd \end_inset ] The command used to generate a list of floats of this type; the leading ` \backslash ' should be omitted. This \emph on must \emph default be given if \begin_inset Flex Code status collapsed \begin_layout Plain Layout UsesFloatPkg \end_layout \end_inset is false, since there is no standard way to generate this command. It is ignored if \begin_inset Flex Code status collapsed \begin_layout Plain Layout UsesFloatPkg \end_layout \end_inset is true, since in that case there is a standard way to define the command. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout ListName \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset = \begin_inset Quotes erd \end_inset \begin_inset Quotes erd \end_inset ] A title for a list of floats of this kind (list of figures, tables, or whatever). It is used for the screen label within LyX; it is passed to LaTeX for use as the title there; and it is used as the title in XHTML output. It will be translated to the document language. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout NumberWithin \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset = \begin_inset Quotes erd \end_inset \begin_inset Quotes erd \end_inset ] This (optional) argument determines whether floats of this class will be numbered within some sectional unit of the document. For example, if within is equal to \begin_inset Flex Code status collapsed \begin_layout Plain Layout chapter \end_layout \end_inset , the floats will be numbered within chapters. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Placement \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset = \begin_inset Quotes erd \end_inset \begin_inset Quotes erd \end_inset ] The default placement for the given class of floats. The string should be as in standard LaTeX: \begin_inset Flex Code status collapsed \begin_layout Plain Layout t \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout b \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout p \end_layout \end_inset and \begin_inset Flex Code status collapsed \begin_layout Plain Layout h \end_layout \end_inset for top, bottom, page, and here, respectively. \begin_inset Foot status collapsed \begin_layout Plain Layout Note that the order of these letters in the string is irrelevant, like in LaTeX. \end_layout \end_inset On top of that there is a new type, \begin_inset Flex Code status collapsed \begin_layout Plain Layout H \end_layout \end_inset , which does not really correspond to a float, since it means: put it \begin_inset Quotes eld \end_inset here \begin_inset Quotes erd \end_inset and nowhere else. Note however that the \begin_inset Flex Code status collapsed \begin_layout Plain Layout H \end_layout \end_inset specifier is special and, because of implementation details, cannot be used in non-built in float types. If you do not understand what this means, just use \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout tbp \end_layout \end_inset \begin_inset Quotes erd \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout RefPrefix \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset ] The prefix to use when creating labels referring to floats of this type. This allows the use of formatted references. Note that you can remove any \begin_inset Flex Code status collapsed \begin_layout Plain Layout RefPrefix \end_layout \end_inset set by a copied style by using the special value \begin_inset Quotes eld \end_inset OFF \begin_inset Quotes erd \end_inset , which must be all caps. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Style \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset = \begin_inset Quotes erd \end_inset \begin_inset Quotes erd \end_inset ] The style used when defining the float using \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash newfloat \end_layout \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Type \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset = \begin_inset Quotes erd \end_inset \begin_inset Quotes erd \end_inset ] The \begin_inset Quotes eld \end_inset type \begin_inset Quotes erd \end_inset of the new class of floats, like program or algorithm. After the appropriate \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash newfloat \end_layout \end_inset , commands such as \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash begin{program} \end_layout \end_inset or \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash end{algorithm*} \end_layout \end_inset will be available. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout UsesFloatPkg \end_layout \end_inset [ \begin_inset Flex Code status open \begin_layout Plain Layout 0 \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on 1 \end_layout \end_inset ] Tells us whether this float is defined using the facilities provided by \begin_inset Flex Code status collapsed \begin_layout Plain Layout float.sty \end_layout \end_inset , either by the class file or a package, or on-the-fly by LyX itself. \end_layout \begin_layout Standard Note that defining a float with type \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on type \end_layout \end_inset automatically defines the corresponding counter with name \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on type \end_layout \end_inset . \end_layout \begin_layout Subsection Flex insets and InsetLayout \begin_inset CommandInset label LatexCommand label name "sub:Flex-insets-and" \end_inset \end_layout \begin_layout Standard LyX has supported character styles since version 1.4.0; as of version 1.6.0, these are called Flex insets. \end_layout \begin_layout Standard Flex insets come in three different kinds: \end_layout \begin_layout Itemize character style ( \begin_inset Flex Code status collapsed \begin_layout Plain Layout CharStyle \end_layout \end_inset ): These define semantic markup corresponding to such LaTeX commands as \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash noun \end_layout \end_inset and \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash code \end_layout \end_inset . \end_layout \begin_layout Itemize user custom ( \begin_inset Flex Code status collapsed \begin_layout Plain Layout Custom \end_layout \end_inset ): These can be used to define custom collapsible insets, similar to TeX code, footnote, and the like. An obvious example is an endnote inset, which is defined in the \begin_inset Flex Code status collapsed \begin_layout Plain Layout endnote \end_layout \end_inset module. \end_layout \begin_layout Itemize XML elements ( \begin_inset Flex Code status collapsed \begin_layout Plain Layout Element \end_layout \end_inset ): For use with DocBook classes. \end_layout \begin_layout Standard Flex insets are defined using the \begin_inset Flex Code status collapsed \begin_layout Plain Layout InsetLayout \end_layout \end_inset tag, which shall be explained in a moment. \end_layout \begin_layout Standard The \begin_inset Flex Code status collapsed \begin_layout Plain Layout InsetLayout \end_layout \end_inset tag also serves another function: It can be used to customize the general layout of many different types of insets. Currently, \begin_inset Flex Code status collapsed \begin_layout Plain Layout InsetLayout \end_layout \end_inset can be used to customize the layout parameters for footnotes, marginal notes, note insets, TeX code (ERT) insets, branches, listings, indexes, boxes, tables, algorithms, URLs, and optional arguments, as well as to define Flex insets. \end_layout \begin_layout Standard The \begin_inset Flex Code status collapsed \begin_layout Plain Layout InsetLayout \end_layout \end_inset definition must begin with a line of the form: \end_layout \begin_layout LyX-Code InsetLayout \end_layout \begin_layout Standard Here \begin_inset Flex Code status collapsed \begin_layout Plain Layout \end_layout \end_inset indicates the inset whose layout is being defined, and here there are two cases. \end_layout \begin_layout Enumerate The layout for a pre-existing inset is being modified. In this case, can be \begin_inset Flex Code status collapsed \begin_layout Plain Layout \end_layout \end_inset any one of the following: \begin_inset Flex Code status collapsed \begin_layout Plain Layout Algorithm \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout Branch \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout Box \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout Box:shaded \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout ERT \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout Figure \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout Foot \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout Index \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout Info \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout Info:menu \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout Info:shortcut \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout Info:shortcuts \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout Listings \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout Marginal \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout Note:Comment \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout Note:Note \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout Note:Greyedout \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout OptArg \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout Table \end_layout \end_inset , or \begin_inset Flex Code status collapsed \begin_layout Plain Layout URL \end_layout \end_inset . \end_layout \begin_layout Enumerate The layout for a Flex inset is being defined. In this case, \begin_inset Flex Code status collapsed \begin_layout Plain Layout \end_layout \end_inset must be of the form \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout Flex: \end_layout \end_inset \begin_inset Quotes erd \end_inset , where \begin_inset Flex Code status collapsed \begin_layout Plain Layout name \end_layout \end_inset may be be any valid identifier not used by a pre-existing Flex inset. The identifier may include spaces, but in that case the whole thing must be wrapped in quotes. Note that the definition of a flex inset \emph on must \emph default also include a \begin_inset Flex Code status collapsed \begin_layout Plain Layout LyXType \end_layout \end_inset entry, declaring which type of inset it defines. \end_layout \begin_layout Standard The \begin_inset Flex Code status collapsed \begin_layout Plain Layout InsetLayout \end_layout \end_inset definition can contain the following entries: \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout BgColor \end_layout \end_inset The color for the inset's background. The valid colors are defined in \begin_inset Flex Code status collapsed \begin_layout Plain Layout src/ColorCode.h \end_layout \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout ContentAsLabel \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on 0 \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout 1 \end_layout \end_inset ] Whether to use the content of the inset as the label, when the inset is closed. Default is false. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout CopyStyle \end_layout \end_inset As with paragraph styles (see page \begin_inset CommandInset ref LatexCommand ref reference "des:CopyStyle" \end_inset ). \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout CustomPars \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on 0 \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout 1 \end_layout \end_inset ] Indicates whether the user may employ the Paragraph Settings dialog to customize the paragraph. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Decoration \end_layout \end_inset can be \begin_inset Flex Code status collapsed \begin_layout Plain Layout Classic \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout Minimalistic \end_layout \end_inset , or \begin_inset Flex Code status collapsed \begin_layout Plain Layout Conglomerate \end_layout \end_inset , describing the rendering style used for the inset's frame and buttons. Footnotes generally use \begin_inset Flex Code status collapsed \begin_layout Plain Layout Classic \end_layout \end_inset , ERT insets generally \begin_inset Flex Code status collapsed \begin_layout Plain Layout Minimalistic \end_layout \end_inset , and character styles \begin_inset Flex Code status collapsed \begin_layout Plain Layout Conglomerate \end_layout \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Display \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout 0 \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on 1 \end_layout \end_inset ] Only useful if \begin_inset Flex Code status collapsed \begin_layout Plain Layout LatexType \end_layout \end_inset is \begin_inset Flex Code status collapsed \begin_layout Plain Layout Environment \end_layout \end_inset . Indicates whether the environment will stand on its own in LaTeX output or will appear inline with the surrounding text. If set to false, it is supposed that the LaTeX environment ignores white space (including one newline character) after the \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash begin{ \emph on LatexName \emph default } \end_layout \end_inset and \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash end{ \emph on LatexName \emph default } \end_layout \end_inset tags. Default is true. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout End \end_layout \end_inset Required at the end of the InsetLayout declarations. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Font \end_layout \end_inset The font used for both the text body \emph on and \emph default the label. See section \begin_inset space ~ \end_inset \begin_inset CommandInset ref LatexCommand ref reference "sub:Font-description" \end_inset . Note that defining this font automatically defines the \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelFont \end_layout \end_inset to the same value, so define this first and define \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelFont \end_layout \end_inset later if you want them to be different. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout ForceLTR \end_layout \end_inset Force the \begin_inset Quotes eld \end_inset latex \begin_inset Quotes erd \end_inset language, leading to Left-to-Right (latin) output, e. \begin_inset space \thinspace{} \end_inset g. \begin_inset space \space{} \end_inset in TeX code or URL. A kludge. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout ForcePlain \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on 0 \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout 1 \end_layout \end_inset ] Indicates whether the \begin_inset Flex Code status collapsed \begin_layout Plain Layout PlainLayout \end_layout \end_inset should be used or, instead, the user can change the paragraph style used in the inset. Default is false. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout FreeSpacing \end_layout \end_inset As with paragraph styles (see page \begin_inset CommandInset ref LatexCommand pageref reference "des:FreeSpacing" \end_inset ). Default is false. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout HTML* \end_layout \end_inset These tags control XHTML output. See section \begin_inset CommandInset ref LatexCommand ref reference "sec:Tags-for-XHTML" \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout InToc \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on 0 \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout 1 \end_layout \end_inset ] Whether to include the contents of this inset in the strings generated for the `Outline' pane. One would not, for example, want the content of a footnote in a section header to be included in the TOC displayed in the outline, but one would normally want the content of a character style displayed. Default is false: not to include. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout KeepEmpty \end_layout \end_inset As with paragraph styles (see page \begin_inset CommandInset ref LatexCommand pageref reference "des:KeepEmpty" \end_inset ). Default is false. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelFont \end_layout \end_inset The font used for the label. See section \begin_inset space ~ \end_inset \begin_inset CommandInset ref LatexCommand ref reference "sub:Font-description" \end_inset . Note that this definition can never appear before \begin_inset Flex Code status collapsed \begin_layout Plain Layout Font \end_layout \end_inset , lest it be ineffective. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelString \end_layout \end_inset What will be displayed on the button or elsewhere as the inset label. Some inset types ( \begin_inset Flex Code status collapsed \begin_layout Plain Layout TeX code \end_layout \end_inset and \begin_inset Flex Code status collapsed \begin_layout Plain Layout Branch \end_layout \end_inset ) modify this label on the fly. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout LatexName \end_layout \end_inset The name of the corresponding LaTeX stuff. Either the environment or command name. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout LatexParam \end_layout \end_inset The optional parameter for the corresponding \begin_inset Flex Code status collapsed \begin_layout Plain Layout LatexName \end_layout \end_inset stuff, including possible bracket pairs like \begin_inset Flex Code status collapsed \begin_layout Plain Layout [] \end_layout \end_inset . This parameter cannot be changed from within LyX. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout LatexType \end_layout \end_inset As with paragraph styles (see page \begin_inset CommandInset ref LatexCommand pageref reference "des:LatexType" \end_inset ). \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout LyxType \end_layout \end_inset Can be \begin_inset Flex Code status collapsed \begin_layout Plain Layout charstyle \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout custom \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout element \end_layout \end_inset , or \begin_inset Flex Code status collapsed \begin_layout Plain Layout end \end_layout \end_inset (indicating a dummy definition ending definitions of charstyles, etc). This entry is required in and is only meaningful for Flex insets. Among other things, it determines on which menu this inset will appear. Setting \begin_inset Flex Code status collapsed \begin_layout Plain Layout LyXType \end_layout \end_inset to \begin_inset Flex Code status collapsed \begin_layout Plain Layout charstyle \end_layout \end_inset will set \begin_inset Flex Code status collapsed \begin_layout Plain Layout MultiPar \end_layout \end_inset to false. \begin_inset Flex Code status collapsed \begin_layout Plain Layout MultiPar \end_layout \end_inset can be set to true for charstyle insets, if you wish, by setting it \emph on after \emph default you set the \begin_inset Flex Code status collapsed \begin_layout Plain Layout LyXType \end_layout \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout MultiPar \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on 0 \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout 1 \end_layout \end_inset ] Whether multiple paragraphs are permitted in this inset. This will also set \begin_inset Flex Code status collapsed \begin_layout Plain Layout CustomPars \end_layout \end_inset to the same value and \begin_inset Flex Code status collapsed \begin_layout Plain Layout ForcePlain \end_layout \end_inset to the opposite value. These can be reset to other values, if they are used \emph on after \emph default \begin_inset Flex Code status collapsed \begin_layout Plain Layout MultiPar \end_layout \end_inset . Default is true. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout NeedProtect \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on 0 \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout 1 \end_layout \end_inset ] Whether fragile commands in this inset should be \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash protect \end_layout \end_inset 'ed. (Note: This is \emph on not \emph default whether the command should itself be protected.) Default is false. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout ParbreakIsNewline \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on 0 \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout 1 \end_layout \end_inset ] As with paragraph styles (see page \begin_inset CommandInset ref LatexCommand pageref reference "des:ParbreakIsNewline" \end_inset ). Default is false. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout PassThru \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on 0 \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout 1 \end_layout \end_inset ] As with paragraph styles (see page \begin_inset CommandInset ref LatexCommand pageref reference "des:PassThru" \end_inset ). Default is false. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Preamble \end_layout \end_inset As with paragraph styles (see page \begin_inset CommandInset ref LatexCommand pageref reference "des:Preamble" \end_inset ). \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout RefPrefix \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset ] The prefix to use when creating labels referring to insets of this type. This allows the use of formatted references. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Requires \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset ] As with paragraph styles (see page \begin_inset CommandInset ref LatexCommand pageref reference "des:Requires" \end_inset ). \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout ResetsFont \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout 0 \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on 1 \end_layout \end_inset ] Whether this inset should use the font of its surrounding environment or uses its own. Default is true: uses its own. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Spellcheck \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout 0 \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on 1 \end_layout \end_inset ] Spellcheck the contents of this inset. Default is true. \end_layout \begin_layout Subsection Counters \begin_inset CommandInset label LatexCommand label name "sub:Counters" \end_inset \end_layout \begin_layout Standard Since version 1.3.0 of LyX, it is both possible and necessary to define the counters ( \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout chapter \end_layout \end_inset , \begin_inset Flex MenuItem status collapsed \begin_layout Plain Layout figure \end_layout \end_inset , \SpecialChar \ldots{} ) in the text class itself. The standard counters are defined in the file \begin_inset Flex Code status collapsed \begin_layout Plain Layout stdcounters.inc \end_layout \end_inset , so you may have to do no more than add \end_layout \begin_layout LyX-Code Input stdcounters.inc \end_layout \begin_layout Standard to your layout file to get them to work. But if you want to define custom counters, then you can do so. The counter declaration must begin with: \end_layout \begin_layout LyX-Code Counter CounterName \end_layout \begin_layout Standard where of course ` \begin_inset Flex Code status collapsed \begin_layout Plain Layout CounterName \end_layout \end_inset ' is replaced by the name of the counter. And it must end with \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout End \end_layout \end_inset \begin_inset Quotes erd \end_inset . The following parameters can also be used: \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelString \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset = \begin_inset Quotes erd \end_inset \begin_inset Quotes erd \end_inset ] When defined, this string defines how the counter is displayed. Setting this value sets \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelStringAppendix \end_layout \end_inset to the same value. The following special constructs can be used in the string: \end_layout \begin_deeper \begin_layout Itemize \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash thecounter \end_layout \end_inset will be replaced by the expansion of the \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelString \end_layout \end_inset (or \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelStringAppendix \end_layout \end_inset ) of the counter \begin_inset Flex Code status collapsed \begin_layout Plain Layout counter \end_layout \end_inset . \end_layout \begin_layout Itemize counter values can be expressed using LaTeX-like macros \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash \emph on numbertype \emph default { \emph on counter \emph default } \end_layout \end_inset , where \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on numbertype \end_layout \end_inset can be: \begin_inset Foot status collapsed \begin_layout Plain Layout \family roman \series medium \shape up \size normal \emph off \bar no \noun off \color none Actually, the situation is a bit more complicated: any \family default \series default \shape default \emph default \bar default \size default \emph on \noun default \color inherit numbertype \family roman \series medium \shape up \size normal \emph off \bar no \noun off other than those described below will produce arabic numerals. It would not be surprising to see this change in the future. \end_layout \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout arabic \end_layout \end_inset : 1, 2, 3,\SpecialChar \ldots{} ; \begin_inset Flex Code status collapsed \begin_layout Plain Layout alph \end_layout \end_inset for lower-case letters: a, b, c, \SpecialChar \ldots{} ; \begin_inset Flex Code status collapsed \begin_layout Plain Layout Alph \end_layout \end_inset for upper-case letters: A, B, C, \SpecialChar \ldots{} ; \begin_inset Flex Code status collapsed \begin_layout Plain Layout roman \end_layout \end_inset for lower-case roman numerals: i, ii, iii, \SpecialChar \ldots{} ; \begin_inset Flex Code status collapsed \begin_layout Plain Layout Roman \end_layout \end_inset for upper-case roman numerals: I, II, III\SpecialChar \ldots{} ; \begin_inset Flex Code status collapsed \begin_layout Plain Layout hebrew \end_layout \end_inset for hebrew numerals. \end_layout \end_deeper \begin_layout Standard If LabelString is not defined, a default value is constructed as follows: if the counter has a master counter \begin_inset Flex Code status collapsed \begin_layout Plain Layout master \end_layout \end_inset (defined via \begin_inset Flex Code status collapsed \begin_layout Plain Layout Within \end_layout \end_inset ), the string \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash themaster. \backslash arabic{counter} \end_layout \end_inset is used; otherwise the string \begin_inset Flex Code status collapsed \begin_layout Plain Layout \backslash arabic{counter} \end_layout \end_inset is used. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelStringAppendix \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset = \begin_inset Quotes erd \end_inset \begin_inset Quotes erd \end_inset ] Same as \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelString \end_layout \end_inset , but for use in the Appendix. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout PrettyFormat \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset = \begin_inset Quotes erd \end_inset \begin_inset Quotes erd \end_inset ] A format for use with formatted references to this counter. For example, one might want to have references to section numbers appear as \begin_inset Quotes eld \end_inset Section 2.4 \begin_inset Quotes erd \end_inset . The string should contain \begin_inset Quotes eld \end_inset ## \begin_inset Quotes erd \end_inset . This will be replaced by the counter number itself. So, for sections, it would be: Section ##. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Within \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset = \begin_inset Quotes erd \end_inset \begin_inset Quotes erd \end_inset ] If this is set to the name of another counter, the present counter will be reset every time the other one is increased. For example, \begin_inset Flex Code status collapsed \begin_layout Plain Layout subsection \end_layout \end_inset is numbered inside \begin_inset Flex Code status collapsed \begin_layout Plain Layout section \end_layout \end_inset . \end_layout \begin_layout Subsection Font description \begin_inset CommandInset label LatexCommand label name "sub:Font-description" \end_inset \end_layout \begin_layout Standard A font description looks like this: \end_layout \begin_layout LyX-Code Font \family roman \emph on or \family default \emph default LabelFont \end_layout \begin_layout LyX-Code ... \end_layout \begin_layout LyX-Code EndFont \end_layout \begin_layout Standard The following commands are available: \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Color \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on none \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout black \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout white \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout red \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout green \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout blue \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout cyan \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout magenta \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout yellow \end_layout \end_inset ] \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Family \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on Roman \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout Sans \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout Typewriter \end_layout \end_inset ] \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Misc \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset ] Valid arguments are: \begin_inset Flex Code status collapsed \begin_layout Plain Layout emph \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout noun \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout strikeout \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout underbar \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout uuline \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout uwave \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout no_emph \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout no_noun \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout no_strikeout \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout no_bar \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout no_uuline \end_layout \end_inset and \begin_inset Flex Code status collapsed \begin_layout Plain Layout no_uwave \end_layout \end_inset . Each of these turns on or off the corresponding attribute. For example, \begin_inset Flex Code status collapsed \begin_layout Plain Layout emph \end_layout \end_inset turns on emphasis, and \begin_inset Flex Code status collapsed \begin_layout Plain Layout no_emph \end_layout \end_inset turns it off. \begin_inset Newline newline \end_inset If the latter seems puzzling, remember that the font settings for the present context are generally inherited from the surrounding context. So \begin_inset Flex Code status collapsed \begin_layout Plain Layout no_emph \end_layout \end_inset would turn off the emphasis that was anyway in effect, say, in a theorem environment. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Series \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on Medium \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout Bold \end_layout \end_inset ] \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Shape \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on Up \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout Italic \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout SmallCaps \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout Slanted \end_layout \end_inset ] \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout Size \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout tiny \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout small \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on normal \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout large \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout larger \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout largest \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout huge \end_layout \end_inset , \begin_inset Flex Code status collapsed \begin_layout Plain Layout giant \end_layout \end_inset ] \end_layout \begin_layout Subsection \begin_inset CommandInset label LatexCommand label name "sub:Citation-format-description" \end_inset Citation format description \end_layout \begin_layout Standard The \begin_inset Flex Code status collapsed \begin_layout Plain Layout CiteFormat \end_layout \end_inset blocks are used to describe how bibliographic information should be displayed, both within LyX itself (in the citation dialog and in tooltips, for example) and in XHTML output. Such a block might look like this: \end_layout \begin_layout LyX-Code CiteFormat \end_layout \begin_layout LyX-Code article ... \end_layout \begin_layout LyX-Code book ... \end_layout \begin_layout LyX-Code End \end_layout \begin_layout Standard The individual lines define how the bibliographic information associated with an article or book, respectively, is to be displayed, and such a definitio n can be given for any `entry type' that might be present in a BibTeX file. LyX defines a default format in the source code that will be used if no specific definition has been given. LyX predefines several formats in the file \begin_inset Flex Code status collapsed \begin_layout Plain Layout stdciteformats.inc \end_layout \end_inset , which is included in most of LyX's document classes. \end_layout \begin_layout Standard The definitions use a simple language that allows BibTeX keys to be replaced with their values. Keys should be enclosed in \begin_inset Flex Code status collapsed \begin_layout Plain Layout % \end_layout \end_inset signs, e.g.: \begin_inset Flex Code status collapsed \begin_layout Plain Layout %author% \end_layout \end_inset . So a simple definition might look like this: \end_layout \begin_layout LyX-Code misc %author%, \begin_inset Quotes eld \end_inset %title \begin_inset Quotes erd \end_inset . \end_layout \begin_layout Standard This would print the author, followed by a comma, followed by the title, in quotes, followed by a period. \end_layout \begin_layout Standard Of course, sometimes you may want to print a key only if it exists. This can be done by using a conditional construction, such as: \begin_inset Flex Code status collapsed \begin_layout Plain Layout {%volume%[[vol. \begin_inset space ~ \end_inset %volume%]]} \end_layout \end_inset . This says: If the \begin_inset Flex Code status collapsed \begin_layout Plain Layout volume \end_layout \end_inset key exists, then print \begin_inset Quotes eld \end_inset vol. \begin_inset space ~ \end_inset \begin_inset Quotes erd \end_inset followed by the volume key. It is also possible to have an else clause in the conditional, such as: \begin_inset Flex Code status collapsed \begin_layout Plain Layout {%author%[[%author%]][[%editor%, ed.]]} \end_layout \end_inset . Here, the \begin_inset Flex Code status collapsed \begin_layout Plain Layout author \end_layout \end_inset key is printed if it exists; otherwise, the editor key is printed, followed by \begin_inset Quotes eld \end_inset , \begin_inset space ~ \end_inset ed. \begin_inset Quotes erd \end_inset Note that the key is again enclosed in \begin_inset Flex Code status collapsed \begin_layout Plain Layout % \end_layout \end_inset signs; the entire conditional is enclosed in braces; and the if and else clauses are enclosed in double brackets, \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout [[ \end_layout \end_inset \begin_inset Quotes eld \end_inset and \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout ]] \end_layout \end_inset \begin_inset Quotes erd \end_inset . There must be no space between any of these. \end_layout \begin_layout Standard There is one other piece of syntax available in definitions, which looks like this: \begin_inset Flex Code status collapsed \begin_layout Plain Layout {!!} \end_layout \end_inset . This defines a piece of formatting information that is to be used when creating \begin_inset Quotes eld \end_inset rich text \begin_inset Quotes erd \end_inset . Obviously, we do not want to output HTML tags when writing plain text, so they should be wrapped in \begin_inset Quotes eld \end_inset {! \begin_inset Quotes erd \end_inset and \begin_inset Quotes eld \end_inset !} \begin_inset Quotes erd \end_inset . \end_layout \begin_layout Standard Two special sorts of definitions are also possible in a \begin_inset Flex Code status collapsed \begin_layout Plain Layout CiteFormat \end_layout \end_inset block. An example of the first would be: \end_layout \begin_layout LyX-Code !quotetitle \begin_inset Quotes eld \end_inset %title% \begin_inset Quotes erd \end_inset \end_layout \begin_layout Standard This is an abbreviation, or macro, and it can be used by treating it as if it were a key: \begin_inset Flex Code status collapsed \begin_layout Plain Layout %!quotetitle% \end_layout \end_inset . LyX will treat \begin_inset Flex Code status collapsed \begin_layout Plain Layout %!quotetitle% \end_layout \end_inset exactly as it would treat its definition. So, let us issue the obvious \emph on warning \emph default . Do not do this: \end_layout \begin_layout LyX-Code !funfun %funfun% \end_layout \begin_layout Standard or anything like it. LyX shouldn't go into an infinite loop, but it may go into a long one before it gives up. \end_layout \begin_layout Standard The second sort of special definition might look like this: \end_layout \begin_layout LyX-Code _pptext pp. \end_layout \begin_layout Standard This defines a translatable piece of text, which allows relevant parts of the bibliography to be translated. It can be included in a definition by treating it as a key: \begin_inset Flex Code status collapsed \begin_layout Plain Layout %_pptext% \end_layout \end_inset . Several of these are predefined in \begin_inset Flex Code status collapsed \begin_layout Plain Layout stdciteformats.inc \end_layout \end_inset . Note that these are not macros, in the sense just defined. They will not be expanded. \end_layout \begin_layout Standard So here then is an example that use all these features: \end_layout \begin_layout LyX-Code !authoredit {%author%[[%author%, ]][[{%editor%[[%editor%, %_edtext%, ]]}]]} \end_layout \begin_layout Standard This defines a macro that prints the author, followed by a comma, if the \begin_inset Flex Code status collapsed \begin_layout Plain Layout author \end_layout \end_inset key is defined, or else prints the name of the editor, followed by the \begin_inset Flex Code status collapsed \begin_layout Plain Layout _edtext \end_layout \end_inset or its translation (it is by default \begin_inset Quotes eld \end_inset ed. \begin_inset Quotes erd \end_inset ), if the \begin_inset Flex Code status collapsed \begin_layout Plain Layout editor \end_layout \end_inset key is defined. Note that this is in fact defined in \begin_inset Flex Code status collapsed \begin_layout Plain Layout stdciteformats.inc \end_layout \end_inset , so you can use it in your own definitions, or re-definitions, if you load that file first. \end_layout \begin_layout Section \begin_inset CommandInset label LatexCommand label name "sec:Tags-for-XHTML" \end_inset Tags for XHTML output \end_layout \begin_layout Standard As with LaTeX or DocBook, the format of LyX's XHTML output is also controlled by layout information. In general, LyX provides sensible defaults and, as mentioned earlier, it will even construct default CSS style rules from the other layout tags. For example, LyX will attempt to use the information provided in the \begin_inset Flex Code status collapsed \begin_layout Plain Layout Font \end_layout \end_inset declaration for the Chapter style to write CSS that will appropriately format chapter headings. \end_layout \begin_layout Standard In many cases, then, you may not have to do anything at all to get acceptable XHTML output for your own environments, custom insets, and so forth. But in some cases you will, and so LyX provides a number of layout tags that can be used to customize the XHTML and CSS that are generated. \end_layout \begin_layout Standard Note that there are two tags, \begin_inset Flex Code status collapsed \begin_layout Plain Layout HTMLPreamble \end_layout \end_inset and \begin_inset Flex Code status collapsed \begin_layout Plain Layout AddToHTMLPreamble \end_layout \end_inset that may appear outside style and inset declarations. See \begin_inset CommandInset ref LatexCommand ref reference "sub:General-text-class" \end_inset for details on these. \end_layout \begin_layout Subsection \begin_inset CommandInset label LatexCommand label name "sub:Paragraph-Style-XHTML" \end_inset Paragraph styles \end_layout \begin_layout Standard The sort of XHTML LyX outputs for a paragraph depends upon whether we are dealing with a normal paragraph, a command, or an environment, where this is itself determined by the contents of the corresponding \begin_inset Flex Code status collapsed \begin_layout Plain Layout LaTeXType \end_layout \end_inset tag. \end_layout \begin_layout Standard For a command or normal paragraph, the output XHTML has the following form: \end_layout \begin_layout LyX-Code \end_layout \begin_layout LyX-Code Label \end_layout \begin_layout LyX-Code Contents of the paragraph. \end_layout \begin_layout LyX-Code \end_layout \begin_layout Standard The label tags are of course omitted if the paragraph does not have a label. \end_layout \begin_layout Standard For an environment that is not some sort of list, the XHTML takes this form: \end_layout \begin_layout LyX-Code \end_layout \begin_layout LyX-Code Environment LabelFirst paragraph. \end_layout \begin_layout LyX-Code Second paragraph. \end_layout \begin_layout LyX-Code \end_layout \begin_layout Standard Note that the label is output only for the first paragraph, as it should be for a theorem, for example. \end_layout \begin_layout Standard For a list, we have one of these forms: \end_layout \begin_layout LyX-Code \end_layout \begin_layout LyX-Code List LabelFirst item. \end_layout \begin_layout LyX-Code List LabelSecond item. \end_layout \begin_layout LyX-Code \end_layout \begin_layout LyX-Code \end_layout \begin_layout LyX-Code \end_layout \begin_layout LyX-Code List LabelFirst item. \end_layout \begin_layout LyX-Code List LabelSecond item. \end_layout \begin_layout LyX-Code \end_layout \begin_layout Standard Note the different orders of \begin_inset Flex Code status collapsed \begin_layout Plain Layout labeltag \end_layout \end_inset and \begin_inset Flex Code status collapsed \begin_layout Plain Layout itemtag \end_layout \end_inset . Which order we get depends upon the setting of \begin_inset Flex Code status collapsed \begin_layout Plain Layout HTMLLabelFirst \end_layout \end_inset : If \begin_inset Flex Code status collapsed \begin_layout Plain Layout HTMLLabelFirst \end_layout \end_inset is false (the default), you get the first of these, with the label within the item; if true, you get the second, with the label outside the item. \end_layout \begin_layout Standard The specific tags and attributes output for each paragraph type can be controlle d by means of the layout tags we are about to describe. As mentioned earlier, however, LyX uses sensible defaults for many of these, so you often may not need to do very much to get good XHTML output. Think of the available tags as there so you can tweak things to your liking. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout HTMLAttr \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset ] Specifies attribute information to be output with the main tag. For example, \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout class=`mydiv' \end_layout \end_inset \begin_inset Quotes erd \end_inset . By default, LyX will output \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout class=`layoutname' \end_layout \end_inset \begin_inset Quotes erd \end_inset , where \begin_inset Flex Code status collapsed \begin_layout Plain Layout layoutname \end_layout \end_inset is the LyX name of the layout, made lowercase, for example: chapter. This should \emph on not \emph default contain any style information. Use \begin_inset Flex Code status collapsed \begin_layout Plain Layout HTMLStyle \end_layout \end_inset for that purpose. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout HTMLForceCSS \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on 0 \emph default ,1 \end_layout \end_inset ] Whether to output the default CSS information LyX generates for this layout, even if additional information is explicitly provided via \begin_inset Flex Code status collapsed \begin_layout Plain Layout HTMLStyle \end_layout \end_inset . Setting this to \begin_inset Flex Code status collapsed \begin_layout Plain Layout 1 \end_layout \end_inset allows you to alter or augment the generated CSS, rather than to override it completely. Default is \begin_inset Flex Code status collapsed \begin_layout Plain Layout 0 \end_layout \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout HTMLItem \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset ] The tag to be used for individual paragraphs of environments, replacing \begin_inset Flex Code status collapsed \begin_layout Plain Layout itemtag \end_layout \end_inset in the examples above. Defaults to \begin_inset Flex Code status collapsed \begin_layout Plain Layout div \end_layout \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout HTMLItemAttr \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset ] Attributes for the item tag. Defaults to \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout class=`layoutname_item' \end_layout \end_inset \begin_inset Quotes erd \end_inset . This should \emph on not \emph default contain any style information. Use \begin_inset Flex Code status collapsed \begin_layout Plain Layout HTMLStyle \end_layout \end_inset for that purpose. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout HTMLLabel \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset ] The tag to be used for paragraph and item labels, replacing \begin_inset Flex Code status collapsed \begin_layout Plain Layout labeltag \end_layout \end_inset in the examples above. Defaults to \begin_inset Flex Code status collapsed \begin_layout Plain Layout span \end_layout \end_inset , unless \begin_inset Flex Code status collapsed \begin_layout Plain Layout LabelType \end_layout \end_inset is either \begin_inset Flex Code status collapsed \begin_layout Plain Layout Top_Environment \end_layout \end_inset or \begin_inset Flex Code status collapsed \begin_layout Plain Layout Centered_Top_Environment \end_layout \end_inset , in which case it defaults to \begin_inset Flex Code status collapsed \begin_layout Plain Layout div \end_layout \end_inset . \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout HTMLLabelAttr \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout string \end_layout \end_inset ] Attributes for the label tag. Defaults to \begin_inset Quotes eld \end_inset \begin_inset Flex Code status collapsed \begin_layout Plain Layout class=`layoutname_label' \end_layout \end_inset \begin_inset Quotes erd \end_inset . This should \emph on not \emph default contain any style information. Use \begin_inset Flex Code status collapsed \begin_layout Plain Layout HTMLStyle \end_layout \end_inset for that purpose. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout HTMLLabelFirst \end_layout \end_inset [ \begin_inset Flex Code status collapsed \begin_layout Plain Layout \emph on 0 \emph default ,1 \end_layout \end_inset ] Meaningful only for list-like environments, this tag controls whether the label tag is output before or inside the item tag. This is used, for example, in the description environment, where we want ` \begin_inset Flex Code status collapsed \begin_layout Plain Layout
\SpecialChar \ldots{}
\SpecialChar \ldots{}
\end_layout \end_inset . Default is \begin_inset Flex Code status collapsed \begin_layout Plain Layout 0 \end_layout \end_inset : The label tag is output inside the item tag. \end_layout \begin_layout Description \begin_inset Flex Code status collapsed \begin_layout Plain Layout HTMLPreamble \end_layout \end_inset Information to be output in the \begin_inset Flex Code status collapsed \begin_layout Plain Layout \end_layout \end_inset section when this style is used. This might, for example, be used to include a \begin_inset Flex Code status collapsed \begin_layout Plain Layout