Before this commit, in the paths preferences tab if you put a
relative path, LyX would convert it behind the scenes to an absolute
path by evaluating the relative path with respect to the working
directory of the LyX instance where the preference change is taking
place. This seems confusing because (1) it is done behind the scenes
(after the preferences dialog is closed) and (2) if the user chooses
to enter a relative path, the safest thing to do is to preserve it
as a relative path, instead of making the assumption that the user
intended for it to be expanded to an absolute path.
An explanation of how relative paths are handled is given at the
bottom of the paths tab. Note that the height/width of the
preferences window is not changed as a result of adding this
explanatory comment because the height of the preferences dialog is
already stretched by other tabs.
This commit improves consistency in the sense that the behavior of
LyX is now the same when a relative path is specified in the
preferences dialog as when it is manually specified in the
preferences file. Before, if the preferences file were manually
edited and a relative path were inserted, the next time the user
made a change to preferences with the GUI (even if the preference
change was a different preference, e.g. instant preview), the
relative path would be silently converted to an absolute path,
evaluated with respect to the working directory of that instance.
Beyond improving clarity and consistency (IMO), this commit allows
for a new feature to be implemented of using relative paths in the
paths preferences. For example, the user may now enter '.' as the
"Working directory" path and now whenever they start LyX from a
directory and create a new file, the default location of the file
will be the directory from which they started LyX, instead of the
user's home directory which is LyX's default and is less intuitive.
No prefs2prefs work is needed because if a relative path were
entered in the preferences dialog before this commit, it was
converted to an absolute path before being stored in preferences. If
a relative path were specified by manually editing the preferences
file, then (unless the path were already automatically converted to
an absolute path by a GUI preferences change, as described above)
the behavior will be the same (the path will be treated as a
relative path).
For related discussion, see the lyx-devel thread here:
https://www.mail-archive.com/search?l=mid&q=20160616003010.bnymtcouar7g55ti%40cotopaxi
This commit removes the last use of lyx::support::expandPath() in
LyX's sources.
variable. This is done in the preferences, much like as the PATH prefix.
A single '.' in the paths will get replaced with the current document dir
and also non-absolute paths will be prefixed with that dir.
The default semantics of TEXINPUTS apply, such that, for example, if a
path is terminated with a double slash, all subdirectories will be also
searched by both the TeX engine and ancillary programs such as dvi
previewers or dvips. As an example, if the prefix is set to ".:figs", the
TEXINPUTS variable will be set as ".:<docdir>:<docdir>/figs:$ORIGTEXINPUTS",
where <docdir> is the document directory.
The initial '.' is necessary to address the actual current dir (this will
be the temp dir at preview time), while if TEXINPUTS was initially unset,
such that $ORIGTEXINPUTS is empty, a colon (or semicolon on Windows) will
end the path list. This is very important, because we don't want to replace
the system directories but to complement them and, in order to do that, an
empty element has to be present in the list. Indeed, according to the
TEXINPUTS semantics, an empty element means the standard search path.
This works whether TEXINPUTS is originally set or not, because if the
original TEXINPUTS starts with a colon (meaning that the standard search
path is wanted there) we will have an empty element at that point,
otherwise the final colon will simply serve as a path separator.
Of course, on Windows a ';' has to be used as a path separator. LyX will
take care of transforming the platform path list into one understandable
by the TeX engine. For example, this will be the case for a Cygwin version
of LyX using a native Windows TeX engine or viceversa. I tested all of
this and it works for me.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@38681 a592a061-630c-0410-9148-cb99ea01b6c8
There are two new rc preference:
* spellchecker: can now be "aspell" or "hunspell", this is selectable in the SpellChecker preference dialog
* hunspelldir_path: needed for hunspell dictionaries which are defined to be in a fixed location. This can be modified in the path preference dialog.
The SpellChecker classes could be instanciated on the fly whenerver they are needed if we want that.
Please test and help me finish this hunspell integration...
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@30927 a592a061-630c-0410-9148-cb99ea01b6c8
RegExp experts please have a look at the FIXMEs in GuiThesaurus.cpp.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@27572 a592a061-630c-0410-9148-cb99ea01b6c8
