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0eb9477be7
Prevent encoding changes whenever the TeX engine is XeTeX or LuaTeX, as XeTeX/LuaTeX use only one encoding per document: * with useNonTeXFonts: "utf8plain", * with XeTeX and TeX fonts: "ascii" (inputenc fails), * with LuaTeX and TeX fonts: only one encoding accepted by luainputenc. +1 no needless encoding switches +1 runparams.encoding matches the correct encoding at any time +1 less complicated code. -1 there may still be problems with CJK (possibly impossible to solve for Xe/LuaTeX with TeX fonts). For LuaTeX & TeX fonts, the complete document uses the encoding of the global document language. See also #9740.
1385 lines
45 KiB
C++
1385 lines
45 KiB
C++
/**
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* \file output_latex.cpp
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Lars Gullik Bjønnes
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*
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* Full author contact details are available in file CREDITS.
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*/
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#include <config.h>
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#include "output_latex.h"
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#include "Buffer.h"
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#include "BufferParams.h"
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#include "Encoding.h"
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#include "Font.h"
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#include "InsetList.h"
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#include "Language.h"
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#include "Layout.h"
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#include "LyXRC.h"
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#include "OutputParams.h"
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#include "Paragraph.h"
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#include "ParagraphParameters.h"
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#include "TextClass.h"
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#include "insets/InsetBibitem.h"
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#include "insets/InsetArgument.h"
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#include "support/lassert.h"
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#include "support/convert.h"
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#include "support/debug.h"
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#include "support/lstrings.h"
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#include "support/lyxalgo.h"
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#include "support/textutils.h"
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#include <QThreadStorage>
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#include <list>
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using namespace std;
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using namespace lyx::support;
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namespace lyx {
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namespace {
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enum OpenEncoding {
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none,
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inputenc,
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CJK
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};
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struct OutputState
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{
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OutputState() : open_encoding_(none), cjk_inherited_(0),
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prev_env_language_(0), open_polyglossia_lang_("")
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{
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}
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OpenEncoding open_encoding_;
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int cjk_inherited_;
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Language const * prev_env_language_;
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string open_polyglossia_lang_;
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};
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OutputState * getOutputState()
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{
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// FIXME An instance of OutputState should be kept around for each export
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// instead of using local thread storage
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static QThreadStorage<OutputState *> outputstate;
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if (!outputstate.hasLocalData())
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outputstate.setLocalData(new OutputState);
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return outputstate.localData();
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}
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string const getPolyglossiaEnvName(Language const * lang)
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{
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string result = lang->polyglossia();
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if (result == "arabic")
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// exceptional spelling; see polyglossia docs.
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result = "Arabic";
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return result;
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}
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string const getPolyglossiaBegin(string const & lang_begin_command,
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string const & lang, string const & opts)
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{
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string result;
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if (!lang.empty())
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result = subst(lang_begin_command, "$$lang", lang);
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string options = opts.empty() ?
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string() : "[" + opts + "]";
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result = subst(result, "$$opts", options);
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return result;
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}
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struct TeXEnvironmentData
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{
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bool cjk_nested;
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Layout const * style;
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Language const * par_language;
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Encoding const * prev_encoding;
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bool leftindent_open;
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};
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static TeXEnvironmentData prepareEnvironment(Buffer const & buf,
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Text const & text,
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ParagraphList::const_iterator pit,
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otexstream & os,
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OutputParams const & runparams)
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{
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TeXEnvironmentData data;
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BufferParams const & bparams = buf.params();
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// FIXME This test should not be necessary.
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// We should perhaps issue an error if it is.
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Layout const & style = text.inset().forcePlainLayout() ?
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bparams.documentClass().plainLayout() : pit->layout();
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ParagraphList const & paragraphs = text.paragraphs();
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ParagraphList::const_iterator const priorpit =
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pit == paragraphs.begin() ? pit : prev(pit, 1);
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OutputState * state = getOutputState();
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bool const use_prev_env_language = state->prev_env_language_ != 0
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&& priorpit->layout().isEnvironment()
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&& (priorpit->getDepth() > pit->getDepth()
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|| (priorpit->getDepth() == pit->getDepth()
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&& priorpit->layout() != pit->layout()));
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data.prev_encoding = runparams.encoding;
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data.par_language = pit->getParLanguage(bparams);
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Language const * const doc_language = bparams.language;
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Language const * const prev_par_language =
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(pit != paragraphs.begin())
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? (use_prev_env_language ? state->prev_env_language_
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: priorpit->getParLanguage(bparams))
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: doc_language;
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bool const use_polyglossia = runparams.use_polyglossia;
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string const par_lang = use_polyglossia ?
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getPolyglossiaEnvName(data.par_language) : data.par_language->babel();
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string const prev_par_lang = use_polyglossia ?
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getPolyglossiaEnvName(prev_par_language) : prev_par_language->babel();
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string const doc_lang = use_polyglossia ?
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getPolyglossiaEnvName(doc_language) : doc_language->babel();
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string const lang_begin_command = use_polyglossia ?
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"\\begin{$$lang}" : lyxrc.language_command_begin;
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string const lang_end_command = use_polyglossia ?
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"\\end{$$lang}" : lyxrc.language_command_end;
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if (par_lang != prev_par_lang) {
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if (!lang_end_command.empty() &&
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prev_par_lang != doc_lang &&
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!prev_par_lang.empty()) {
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os << from_ascii(subst(
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lang_end_command,
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"$$lang",
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prev_par_lang))
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// the '%' is necessary to prevent unwanted whitespace
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<< "%\n";
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}
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if ((lang_end_command.empty() ||
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par_lang != doc_lang) &&
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!par_lang.empty()) {
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string bc = use_polyglossia ?
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getPolyglossiaBegin(lang_begin_command, par_lang,
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data.par_language->polyglossiaOpts())
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: subst(lang_begin_command, "$$lang", par_lang);
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os << bc;
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// the '%' is necessary to prevent unwanted whitespace
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os << "%\n";
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}
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}
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data.leftindent_open = false;
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if (!pit->params().leftIndent().zero()) {
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os << "\\begin{LyXParagraphLeftIndent}{"
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<< from_ascii(pit->params().leftIndent().asLatexString())
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<< "}\n";
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data.leftindent_open = true;
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}
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if (style.isEnvironment()) {
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if (par_lang != doc_lang)
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state->open_polyglossia_lang_ = par_lang;
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os << "\\begin{" << from_ascii(style.latexname()) << '}';
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if (!style.latexargs().empty()) {
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OutputParams rp = runparams;
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rp.local_font = &pit->getFirstFontSettings(bparams);
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latexArgInsets(paragraphs, pit, os, rp, style.latexargs());
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}
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if (style.latextype == LATEX_LIST_ENVIRONMENT) {
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os << '{'
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<< pit->params().labelWidthString()
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<< "}\n";
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} else if (style.labeltype == LABEL_BIBLIO) {
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if (pit->params().labelWidthString().empty())
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os << '{' << bibitemWidest(buf, runparams) << "}\n";
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else
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os << '{'
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<< pit->params().labelWidthString()
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<< "}\n";
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} else
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os << from_ascii(style.latexparam()) << '\n';
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}
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data.style = &style;
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// in multilingual environments, the CJK tags have to be nested properly
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data.cjk_nested = false;
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if (data.par_language->encoding()->package() == Encoding::CJK &&
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state->open_encoding_ != CJK && pit->isMultiLingual(bparams)) {
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if (prev_par_language->encoding()->package() == Encoding::CJK)
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os << "\\begin{CJK}{" << from_ascii(data.par_language->encoding()->latexName())
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<< "}{" << from_ascii(bparams.fonts_cjk) << "}%\n";
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state->open_encoding_ = CJK;
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data.cjk_nested = true;
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}
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return data;
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}
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static void finishEnvironment(otexstream & os, OutputParams const & runparams,
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TeXEnvironmentData const & data)
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{
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OutputState * state = getOutputState();
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// BufferParams const & bparams = buf.params(); // FIXME: for speedup shortcut below, would require passing of "buf" as argument
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if (state->open_encoding_ == CJK && data.cjk_nested) {
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// We need to close the encoding even if it does not change
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// to do correct environment nesting
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os << "\\end{CJK}\n";
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state->open_encoding_ = none;
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}
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if (data.style->isEnvironment()) {
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os << breakln
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<< "\\end{" << from_ascii(data.style->latexname()) << "}\n";
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state->prev_env_language_ = data.par_language;
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if (runparams.encoding != data.prev_encoding) {
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runparams.encoding = data.prev_encoding;
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os << setEncoding(data.prev_encoding->iconvName());
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}
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}
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if (data.leftindent_open) {
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os << breakln << "\\end{LyXParagraphLeftIndent}\n";
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state->prev_env_language_ = data.par_language;
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if (runparams.encoding != data.prev_encoding) {
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runparams.encoding = data.prev_encoding;
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os << setEncoding(data.prev_encoding->iconvName());
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}
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}
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// Check whether we should output a blank line after the environment
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if (!data.style->nextnoindent)
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os << '\n';
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}
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void TeXEnvironment(Buffer const & buf, Text const & text,
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OutputParams const & runparams,
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pit_type & pit, otexstream & os)
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{
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ParagraphList const & paragraphs = text.paragraphs();
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ParagraphList::const_iterator par = paragraphs.constIterator(pit);
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LYXERR(Debug::LATEX, "TeXEnvironment for paragraph " << pit);
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Layout const & current_layout = par->layout();
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depth_type const current_depth = par->params().depth();
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Length const & current_left_indent = par->params().leftIndent();
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// This is for debugging purpose at the end.
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pit_type const par_begin = pit;
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for (; pit < runparams.par_end; ++pit) {
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ParagraphList::const_iterator par = paragraphs.constIterator(pit);
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// check first if this is an higher depth paragraph.
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bool go_out = (par->params().depth() < current_depth);
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if (par->params().depth() == current_depth) {
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// This environment is finished.
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go_out |= (par->layout() != current_layout);
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go_out |= (par->params().leftIndent() != current_left_indent);
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}
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if (go_out) {
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// nothing to do here, restore pit and go out.
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pit--;
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break;
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}
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if (par->layout() == current_layout
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&& par->params().depth() == current_depth
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&& par->params().leftIndent() == current_left_indent) {
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// We are still in the same environment so TeXOnePar and continue;
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TeXOnePar(buf, text, pit, os, runparams);
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continue;
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}
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// We are now in a deeper environment.
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// Either par->layout() != current_layout
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// Or par->params().depth() > current_depth
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// Or par->params().leftIndent() != current_left_indent)
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// FIXME This test should not be necessary.
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// We should perhaps issue an error if it is.
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bool const force_plain_layout = text.inset().forcePlainLayout();
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Layout const & style = force_plain_layout
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? buf.params().documentClass().plainLayout()
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: par->layout();
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if (!style.isEnvironment()) {
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// This is a standard paragraph, no need to call TeXEnvironment.
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TeXOnePar(buf, text, pit, os, runparams);
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continue;
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}
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// This is a new environment.
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TeXEnvironmentData const data =
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prepareEnvironment(buf, text, par, os, runparams);
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// Recursive call to TeXEnvironment!
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TeXEnvironment(buf, text, runparams, pit, os);
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finishEnvironment(os, runparams, data);
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}
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if (pit != runparams.par_end)
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LYXERR(Debug::LATEX, "TeXEnvironment for paragraph " << par_begin << " done.");
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}
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void getArgInsets(otexstream & os, OutputParams const & runparams, Layout::LaTeXArgMap const & latexargs,
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map<int, lyx::InsetArgument const *> ilist, vector<string> required, string const & prefix)
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{
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unsigned int const argnr = latexargs.size();
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if (argnr == 0)
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return;
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// Default and preset args are always output, so if they require
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// other arguments, consider this.
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Layout::LaTeXArgMap::const_iterator lit = latexargs.begin();
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Layout::LaTeXArgMap::const_iterator const lend = latexargs.end();
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for (; lit != lend; ++lit) {
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Layout::latexarg arg = (*lit).second;
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if ((!arg.presetarg.empty() || !arg.defaultarg.empty()) && !arg.requires.empty()) {
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vector<string> req = getVectorFromString(arg.requires);
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required.insert(required.end(), req.begin(), req.end());
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}
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}
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for (unsigned int i = 1; i <= argnr; ++i) {
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map<int, InsetArgument const *>::const_iterator lit = ilist.find(i);
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bool inserted = false;
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if (lit != ilist.end()) {
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InsetArgument const * ins = (*lit).second;
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if (ins) {
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Layout::LaTeXArgMap::const_iterator const lait =
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latexargs.find(ins->name());
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if (lait != latexargs.end()) {
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Layout::latexarg arg = (*lait).second;
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docstring ldelim = arg.mandatory ?
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from_ascii("{") : from_ascii("[");
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docstring rdelim = arg.mandatory ?
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from_ascii("}") : from_ascii("]");
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if (!arg.ldelim.empty())
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ldelim = arg.ldelim;
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if (!arg.rdelim.empty())
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rdelim = arg.rdelim;
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ins->latexArgument(os, runparams, ldelim, rdelim, arg.presetarg);
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inserted = true;
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}
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}
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}
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if (!inserted) {
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Layout::LaTeXArgMap::const_iterator lait = latexargs.begin();
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Layout::LaTeXArgMap::const_iterator const laend = latexargs.end();
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for (; lait != laend; ++lait) {
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string const name = prefix + convert<string>(i);
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if ((*lait).first == name) {
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Layout::latexarg arg = (*lait).second;
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docstring preset = arg.presetarg;
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if (!arg.defaultarg.empty()) {
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if (!preset.empty())
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preset += ",";
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preset += arg.defaultarg;
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}
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if (arg.mandatory) {
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docstring ldelim = arg.ldelim.empty() ?
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from_ascii("{") : arg.ldelim;
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docstring rdelim = arg.rdelim.empty() ?
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from_ascii("}") : arg.rdelim;
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os << ldelim << preset << rdelim;
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} else if (!preset.empty()) {
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docstring ldelim = arg.ldelim.empty() ?
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from_ascii("[") : arg.ldelim;
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docstring rdelim = arg.rdelim.empty() ?
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from_ascii("]") : arg.rdelim;
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os << ldelim << preset << rdelim;
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} else if (find(required.begin(), required.end(),
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(*lait).first) != required.end()) {
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docstring ldelim = arg.ldelim.empty() ?
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from_ascii("[") : arg.ldelim;
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docstring rdelim = arg.rdelim.empty() ?
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from_ascii("]") : arg.rdelim;
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os << ldelim << rdelim;
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} else
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break;
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}
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}
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}
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}
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}
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} // namespace anon
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void latexArgInsets(Paragraph const & par, otexstream & os,
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OutputParams const & runparams, Layout::LaTeXArgMap const & latexargs, string const & prefix)
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{
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map<int, InsetArgument const *> ilist;
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vector<string> required;
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InsetList::const_iterator it = par.insetList().begin();
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InsetList::const_iterator end = par.insetList().end();
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for (; it != end; ++it) {
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if (it->inset->lyxCode() == ARG_CODE) {
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InsetArgument const * ins =
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static_cast<InsetArgument const *>(it->inset);
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if (ins->name().empty())
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LYXERR0("Error: Unnamed argument inset!");
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else {
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string const name = prefix.empty() ? ins->name() : split(ins->name(), ':');
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unsigned int const nr = convert<unsigned int>(name);
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ilist[nr] = ins;
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Layout::LaTeXArgMap::const_iterator const lit =
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latexargs.find(ins->name());
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if (lit != latexargs.end()) {
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Layout::latexarg const & arg = (*lit).second;
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if (!arg.requires.empty()) {
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vector<string> req = getVectorFromString(arg.requires);
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required.insert(required.end(), req.begin(), req.end());
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}
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}
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}
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}
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}
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getArgInsets(os, runparams, latexargs, ilist, required, prefix);
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}
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void latexArgInsets(ParagraphList const & pars, ParagraphList::const_iterator pit,
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otexstream & os, OutputParams const & runparams, Layout::LaTeXArgMap const & latexargs,
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string const & prefix)
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{
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map<int, InsetArgument const *> ilist;
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vector<string> required;
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depth_type const current_depth = pit->params().depth();
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Layout const current_layout = pit->layout();
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// get the first paragraph in sequence with this layout and depth
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pit_type offset = 0;
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while (true) {
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if (prev(pit, offset) == pars.begin())
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break;
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ParagraphList::const_iterator priorpit = prev(pit, offset + 1);
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if (priorpit->layout() == current_layout
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&& priorpit->params().depth() == current_depth)
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++offset;
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else
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break;
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}
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ParagraphList::const_iterator spit = prev(pit, offset);
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for (; spit != pars.end(); ++spit) {
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if (spit->layout() != current_layout || spit->params().depth() < current_depth)
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break;
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if (spit->params().depth() > current_depth)
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continue;
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InsetList::const_iterator it = spit->insetList().begin();
|
|
InsetList::const_iterator end = spit->insetList().end();
|
|
for (; it != end; ++it) {
|
|
if (it->inset->lyxCode() == ARG_CODE) {
|
|
InsetArgument const * ins =
|
|
static_cast<InsetArgument const *>(it->inset);
|
|
if (ins->name().empty())
|
|
LYXERR0("Error: Unnamed argument inset!");
|
|
else {
|
|
string const name = prefix.empty() ? ins->name() : split(ins->name(), ':');
|
|
unsigned int const nr = convert<unsigned int>(name);
|
|
if (ilist.find(nr) == ilist.end())
|
|
ilist[nr] = ins;
|
|
Layout::LaTeXArgMap::const_iterator const lit =
|
|
latexargs.find(ins->name());
|
|
if (lit != latexargs.end()) {
|
|
Layout::latexarg const & arg = (*lit).second;
|
|
if (!arg.requires.empty()) {
|
|
vector<string> req = getVectorFromString(arg.requires);
|
|
required.insert(required.end(), req.begin(), req.end());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
getArgInsets(os, runparams, latexargs, ilist, required, prefix);
|
|
}
|
|
|
|
namespace {
|
|
|
|
// output the proper paragraph start according to latextype.
|
|
void parStartCommand(Paragraph const & par, otexstream & os,
|
|
OutputParams const & runparams, Layout const & style)
|
|
{
|
|
switch (style.latextype) {
|
|
case LATEX_COMMAND:
|
|
os << '\\' << from_ascii(style.latexname());
|
|
|
|
// Command arguments
|
|
if (!style.latexargs().empty())
|
|
latexArgInsets(par, os, runparams, style.latexargs());
|
|
os << from_ascii(style.latexparam());
|
|
break;
|
|
case LATEX_ITEM_ENVIRONMENT:
|
|
case LATEX_LIST_ENVIRONMENT:
|
|
os << "\\" + style.itemcommand();
|
|
// Item arguments
|
|
if (!style.itemargs().empty())
|
|
latexArgInsets(par, os, runparams, style.itemargs(), "item:");
|
|
os << " ";
|
|
break;
|
|
case LATEX_BIB_ENVIRONMENT:
|
|
// ignore this, the inset will write itself
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
} // namespace anon
|
|
|
|
// FIXME: this should be anonymous
|
|
void TeXOnePar(Buffer const & buf,
|
|
Text const & text,
|
|
pit_type pit,
|
|
otexstream & os,
|
|
OutputParams const & runparams_in,
|
|
string const & everypar,
|
|
int start_pos, int end_pos)
|
|
{
|
|
BufferParams const & bparams = runparams_in.is_child
|
|
? buf.masterParams() : buf.params();
|
|
ParagraphList const & paragraphs = text.paragraphs();
|
|
Paragraph const & par = paragraphs.at(pit);
|
|
// FIXME This check should not really be needed.
|
|
// Perhaps we should issue an error if it is.
|
|
Layout const & style = text.inset().forcePlainLayout() ?
|
|
bparams.documentClass().plainLayout() : par.layout();
|
|
|
|
if (style.inpreamble)
|
|
return;
|
|
|
|
LYXERR(Debug::LATEX, "TeXOnePar for paragraph " << pit << " ptr " << &par << " '"
|
|
<< everypar << "'");
|
|
|
|
OutputParams runparams = runparams_in;
|
|
runparams.isLastPar = (pit == pit_type(paragraphs.size() - 1));
|
|
// We reinitialze par begin and end to be on the safe side
|
|
// with embedded inset as we don't know if they set those
|
|
// value correctly.
|
|
runparams.par_begin = 0;
|
|
runparams.par_end = 0;
|
|
|
|
bool const maintext = text.isMainText();
|
|
// we are at the beginning of an inset and CJK is already open;
|
|
// we count inheritation levels to get the inset nesting right.
|
|
OutputState * state = getOutputState();
|
|
if (pit == 0 && !maintext
|
|
&& (state->cjk_inherited_ > 0 || state->open_encoding_ == CJK)) {
|
|
state->cjk_inherited_ += 1;
|
|
state->open_encoding_ = none;
|
|
}
|
|
|
|
if (text.inset().isPassThru()) {
|
|
Font const outerfont = text.outerFont(pit);
|
|
|
|
// No newline before first paragraph in this lyxtext
|
|
if (pit > 0) {
|
|
os << '\n';
|
|
if (!text.inset().getLayout().parbreakIsNewline())
|
|
os << '\n';
|
|
}
|
|
|
|
par.latex(bparams, outerfont, os, runparams, start_pos, end_pos);
|
|
return;
|
|
}
|
|
|
|
Paragraph const * nextpar = runparams.isLastPar
|
|
? 0 : ¶graphs.at(pit + 1);
|
|
|
|
if (style.pass_thru) {
|
|
Font const outerfont = text.outerFont(pit);
|
|
parStartCommand(par, os, runparams, style);
|
|
|
|
par.latex(bparams, outerfont, os, runparams, start_pos, end_pos);
|
|
|
|
// I did not create a parEndCommand for this minuscule
|
|
// task because in the other user of parStartCommand
|
|
// the code is different (JMarc)
|
|
if (style.isCommand())
|
|
os << "}\n";
|
|
else
|
|
os << '\n';
|
|
if (!style.parbreak_is_newline) {
|
|
os << '\n';
|
|
} else if (nextpar && !style.isEnvironment()) {
|
|
Layout const nextstyle = text.inset().forcePlainLayout()
|
|
? bparams.documentClass().plainLayout()
|
|
: nextpar->layout();
|
|
if (nextstyle.name() != style.name())
|
|
os << '\n';
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
// This paragraph's language
|
|
Language const * const par_language = par.getParLanguage(bparams);
|
|
Language const * const nextpar_language = nextpar ?
|
|
nextpar->getParLanguage(bparams) : 0;
|
|
// The document's language
|
|
Language const * const doc_language = bparams.language;
|
|
// The language that was in effect when the environment this paragraph is
|
|
// inside of was opened
|
|
Language const * const outer_language =
|
|
(runparams.local_font != 0) ?
|
|
runparams.local_font->language() : doc_language;
|
|
|
|
Paragraph const * priorpar = (pit == 0) ? 0 : ¶graphs.at(pit - 1);
|
|
|
|
// The previous language that was in effect is the language of the
|
|
// previous paragraph, unless the previous paragraph is inside an
|
|
// environment with nesting depth greater than (or equal to, but with
|
|
// a different layout) the current one. If there is no previous
|
|
// paragraph, the previous language is the outer language.
|
|
bool const use_prev_env_language = state->prev_env_language_ != 0
|
|
&& priorpar
|
|
&& priorpar->layout().isEnvironment()
|
|
&& (priorpar->getDepth() > par.getDepth()
|
|
|| (priorpar->getDepth() == par.getDepth()
|
|
&& priorpar->layout() != par.layout()));
|
|
Language const * const prev_language =
|
|
(pit != 0)
|
|
? (use_prev_env_language ? state->prev_env_language_
|
|
: priorpar->getParLanguage(bparams))
|
|
: outer_language;
|
|
|
|
|
|
bool const use_polyglossia = runparams.use_polyglossia;
|
|
string const par_lang = use_polyglossia ?
|
|
getPolyglossiaEnvName(par_language): par_language->babel();
|
|
string const prev_lang = use_polyglossia ?
|
|
getPolyglossiaEnvName(prev_language) : prev_language->babel();
|
|
string const outer_lang = use_polyglossia ?
|
|
getPolyglossiaEnvName(outer_language) : outer_language->babel();
|
|
string const nextpar_lang = nextpar_language ? (use_polyglossia ?
|
|
getPolyglossiaEnvName(nextpar_language) :
|
|
nextpar_language->babel()) : string();
|
|
string lang_begin_command = use_polyglossia ?
|
|
"\\begin{$$lang}$$opts" : lyxrc.language_command_begin;
|
|
string lang_end_command = use_polyglossia ?
|
|
"\\end{$$lang}" : lyxrc.language_command_end;
|
|
// the '%' is necessary to prevent unwanted whitespace
|
|
string lang_command_termination = "%\n";
|
|
|
|
// In some insets (such as Arguments), we cannot use \selectlanguage
|
|
bool const localswitch = text.inset().forceLocalFontSwitch();
|
|
if (localswitch) {
|
|
lang_begin_command = use_polyglossia ?
|
|
"\\text$$lang$$opts{" : lyxrc.language_command_local;
|
|
lang_end_command = "}";
|
|
lang_command_termination.clear();
|
|
}
|
|
|
|
if (par_lang != prev_lang
|
|
// check if we already put language command in TeXEnvironment()
|
|
&& !(style.isEnvironment()
|
|
&& (pit == 0 || (priorpar->layout() != par.layout()
|
|
&& priorpar->getDepth() <= par.getDepth())
|
|
|| priorpar->getDepth() < par.getDepth())))
|
|
{
|
|
if (!lang_end_command.empty() &&
|
|
prev_lang != outer_lang &&
|
|
!prev_lang.empty())
|
|
{
|
|
os << from_ascii(subst(lang_end_command,
|
|
"$$lang",
|
|
prev_lang))
|
|
<< lang_command_termination;
|
|
if (prev_lang == state->open_polyglossia_lang_)
|
|
state->open_polyglossia_lang_ = "";
|
|
}
|
|
|
|
// We need to open a new language if we couldn't close the previous
|
|
// one (because there's no language_command_end); and even if we closed
|
|
// the previous one, if the current language is different than the
|
|
// outer_language (which is currently in effect once the previous one
|
|
// is closed).
|
|
if ((lang_end_command.empty() || par_lang != outer_lang)
|
|
&& !par_lang.empty()) {
|
|
// If we're inside an inset, and that inset is within an \L or \R
|
|
// (or equivalents), then within the inset, too, any opposite
|
|
// language paragraph should appear within an \L or \R (in addition
|
|
// to, outside of, the normal language switch commands).
|
|
// This behavior is not correct for ArabTeX, though.
|
|
if (!use_polyglossia
|
|
// not for ArabTeX
|
|
&& par_language->lang() != "arabic_arabtex"
|
|
&& outer_language->lang() != "arabic_arabtex"
|
|
// are we in an inset?
|
|
&& runparams.local_font != 0
|
|
// is the inset within an \L or \R?
|
|
//
|
|
// FIXME: currently, we don't check this; this means that
|
|
// we'll have unnnecessary \L and \R commands, but that
|
|
// doesn't seem to hurt (though latex will complain)
|
|
//
|
|
// is this paragraph in the opposite direction?
|
|
&& runparams.local_font->isRightToLeft() != par_language->rightToLeft()) {
|
|
// FIXME: I don't have a working copy of the Arabi package, so
|
|
// I'm not sure if the farsi and arabic_arabi stuff is correct
|
|
// or not...
|
|
if (par_language->lang() == "farsi")
|
|
os << "\\textFR{";
|
|
else if (outer_language->lang() == "farsi")
|
|
os << "\\textLR{";
|
|
else if (par_language->lang() == "arabic_arabi")
|
|
os << "\\textAR{";
|
|
else if (outer_language->lang() == "arabic_arabi")
|
|
os << "\\textLR{";
|
|
// remaining RTL languages currently is hebrew
|
|
else if (par_language->rightToLeft())
|
|
os << "\\R{";
|
|
else
|
|
os << "\\L{";
|
|
}
|
|
// With CJK, the CJK tag has to be closed first (see below)
|
|
if (runparams.encoding->package() != Encoding::CJK
|
|
&& !par_lang.empty()) {
|
|
string bc = use_polyglossia ?
|
|
getPolyglossiaBegin(lang_begin_command, par_lang, par_language->polyglossiaOpts())
|
|
: subst(lang_begin_command, "$$lang", par_lang);
|
|
os << bc;
|
|
os << lang_command_termination;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Switch file encoding if necessary; no need to do this for "default"
|
|
// encoding, since this only affects the position of the outputted
|
|
// \inputencoding command; the encoding switch will occur when necessary
|
|
if (bparams.inputenc == "auto"
|
|
&& !runparams.isFullUnicode() // Xe/LuaTeX use one document-wide encoding (see also switchEncoding())
|
|
&& runparams.encoding->package() != Encoding::none) {
|
|
// Look ahead for future encoding changes.
|
|
// We try to output them at the beginning of the paragraph,
|
|
// since the \inputencoding command is not allowed e.g. in
|
|
// sections. For this reason we only set runparams.moving_arg
|
|
// after checking for the encoding change, otherwise the
|
|
// change would be always avoided by switchEncoding().
|
|
for (pos_type i = 0; i < par.size(); ++i) {
|
|
char_type const c = par.getChar(i);
|
|
Encoding const * const encoding =
|
|
par.getFontSettings(bparams, i).language()->encoding();
|
|
if (encoding->package() != Encoding::CJK
|
|
&& runparams.encoding->package() == Encoding::inputenc
|
|
&& isASCII(c))
|
|
continue;
|
|
if (par.isInset(i))
|
|
break;
|
|
// All characters before c are in the ASCII range, and
|
|
// c is non-ASCII (but no inset), so change the
|
|
// encoding to that required by the language of c.
|
|
// With CJK, only add switch if we have CJK content at the beginning
|
|
// of the paragraph
|
|
if (i != 0 && encoding->package() == Encoding::CJK)
|
|
continue;
|
|
|
|
pair<bool, int> enc_switch = switchEncoding(os.os(),
|
|
bparams, runparams, *encoding);
|
|
// the following is necessary after a CJK environment in a multilingual
|
|
// context (nesting issue).
|
|
if (par_language->encoding()->package() == Encoding::CJK
|
|
&& state->open_encoding_ != CJK && state->cjk_inherited_ == 0) {
|
|
os << "\\begin{CJK}{" << from_ascii(par_language->encoding()->latexName())
|
|
<< "}{" << from_ascii(bparams.fonts_cjk) << "}%\n";
|
|
state->open_encoding_ = CJK;
|
|
}
|
|
if (encoding->package() != Encoding::none && enc_switch.first) {
|
|
if (enc_switch.second > 0) {
|
|
// the '%' is necessary to prevent unwanted whitespace
|
|
os << "%\n";
|
|
}
|
|
// With CJK, the CJK tag had to be closed first (see above)
|
|
if (runparams.encoding->package() == Encoding::CJK
|
|
&& !par_lang.empty()) {
|
|
os << from_ascii(subst(
|
|
lang_begin_command,
|
|
"$$lang",
|
|
par_lang))
|
|
<< lang_command_termination;
|
|
}
|
|
runparams.encoding = encoding;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
runparams.moving_arg |= style.needprotect;
|
|
Encoding const * const prev_encoding = runparams.encoding;
|
|
|
|
bool const useSetSpace = bparams.documentClass().provides("SetSpace");
|
|
if (par.allowParagraphCustomization()) {
|
|
if (par.params().startOfAppendix()) {
|
|
os << "\n\\appendix\n";
|
|
}
|
|
|
|
if (!par.params().spacing().isDefault()
|
|
&& (pit == 0 || !priorpar->hasSameLayout(par)))
|
|
{
|
|
os << from_ascii(par.params().spacing().writeEnvirBegin(useSetSpace))
|
|
<< '\n';
|
|
}
|
|
|
|
if (style.isCommand()) {
|
|
os << '\n';
|
|
}
|
|
}
|
|
|
|
parStartCommand(par, os, runparams, style);
|
|
Font const outerfont = text.outerFont(pit);
|
|
|
|
// FIXME UNICODE
|
|
os << from_utf8(everypar);
|
|
par.latex(bparams, outerfont, os, runparams, start_pos, end_pos);
|
|
|
|
// Make sure that \\par is done with the font of the last
|
|
// character if this has another size as the default.
|
|
// This is necessary because LaTeX (and LyX on the screen)
|
|
// calculates the space between the baselines according
|
|
// to this font. (Matthias)
|
|
//
|
|
// We must not change the font for the last paragraph
|
|
// of non-multipar insets, tabular cells or commands,
|
|
// since this produces unwanted whitespace.
|
|
|
|
Font const font = par.empty()
|
|
? par.getLayoutFont(bparams, outerfont)
|
|
: par.getFont(bparams, par.size() - 1, outerfont);
|
|
|
|
bool const is_command = style.isCommand();
|
|
|
|
if (style.resfont.size() != font.fontInfo().size()
|
|
&& (nextpar || maintext
|
|
|| (text.inset().paragraphs().size() > 1
|
|
&& text.inset().lyxCode() != CELL_CODE))
|
|
&& !is_command) {
|
|
os << '{';
|
|
os << "\\" << from_ascii(font.latexSize()) << " \\par}";
|
|
} else if (is_command) {
|
|
os << '}';
|
|
if (!style.postcommandargs().empty())
|
|
latexArgInsets(par, os, runparams, style.postcommandargs(), "post:");
|
|
if (runparams.encoding != prev_encoding) {
|
|
runparams.encoding = prev_encoding;
|
|
os << setEncoding(prev_encoding->iconvName());
|
|
}
|
|
}
|
|
|
|
bool pending_newline = false;
|
|
bool unskip_newline = false;
|
|
switch (style.latextype) {
|
|
case LATEX_ITEM_ENVIRONMENT:
|
|
case LATEX_LIST_ENVIRONMENT:
|
|
if (nextpar && par.params().depth() < nextpar->params().depth())
|
|
pending_newline = true;
|
|
break;
|
|
case LATEX_ENVIRONMENT: {
|
|
// if its the last paragraph of the current environment
|
|
// skip it otherwise fall through
|
|
if (nextpar
|
|
&& (nextpar->layout() != par.layout()
|
|
|| nextpar->params().depth() != par.params().depth()))
|
|
break;
|
|
}
|
|
|
|
// fall through possible
|
|
default:
|
|
// we don't need it for the last paragraph!!!
|
|
if (nextpar)
|
|
pending_newline = true;
|
|
}
|
|
|
|
if (par.allowParagraphCustomization()) {
|
|
if (!par.params().spacing().isDefault()
|
|
&& (runparams.isLastPar || !nextpar->hasSameLayout(par))) {
|
|
if (pending_newline)
|
|
os << '\n';
|
|
|
|
string const endtag =
|
|
par.params().spacing().writeEnvirEnd(useSetSpace);
|
|
if (prefixIs(endtag, "\\end{"))
|
|
os << breakln;
|
|
|
|
os << from_ascii(endtag);
|
|
pending_newline = true;
|
|
}
|
|
}
|
|
|
|
// Closing the language is needed for the last paragraph; it is also
|
|
// needed if we're within an \L or \R that we may have opened above (not
|
|
// necessarily in this paragraph) and are about to close.
|
|
bool closing_rtl_ltr_environment = !use_polyglossia
|
|
// not for ArabTeX
|
|
&& (par_language->lang() != "arabic_arabtex"
|
|
&& outer_language->lang() != "arabic_arabtex")
|
|
// have we opened an \L or \R environment?
|
|
&& runparams.local_font != 0
|
|
&& runparams.local_font->isRightToLeft() != par_language->rightToLeft()
|
|
// are we about to close the language?
|
|
&&((nextpar && par_lang != nextpar_lang)
|
|
|| (runparams.isLastPar && par_lang != outer_lang));
|
|
|
|
if (closing_rtl_ltr_environment
|
|
|| (runparams.isLastPar
|
|
&& par_lang != outer_lang)) {
|
|
// Since \selectlanguage write the language to the aux file,
|
|
// we need to reset the language at the end of footnote or
|
|
// float.
|
|
|
|
if (pending_newline)
|
|
os << '\n';
|
|
|
|
// when the paragraph uses CJK, the language has to be closed earlier
|
|
if (font.language()->encoding()->package() != Encoding::CJK) {
|
|
if (lang_end_command.empty()) {
|
|
// If this is a child, we should restore the
|
|
// master language after the last paragraph.
|
|
Language const * const current_language =
|
|
(runparams.isLastPar && runparams.master_language)
|
|
? runparams.master_language
|
|
: outer_language;
|
|
string const current_lang = use_polyglossia
|
|
? getPolyglossiaEnvName(current_language)
|
|
: current_language->babel();
|
|
if (!current_lang.empty()) {
|
|
string bc = use_polyglossia ?
|
|
getPolyglossiaBegin(lang_begin_command, current_lang,
|
|
current_language->polyglossiaOpts())
|
|
: subst(lang_begin_command, "$$lang", current_lang);
|
|
os << bc;
|
|
pending_newline = !localswitch;
|
|
unskip_newline = !localswitch;
|
|
}
|
|
} else if (!par_lang.empty()) {
|
|
// If we are in an environment, we have to close the "outer" language afterwards
|
|
if (!style.isEnvironment() || state->open_polyglossia_lang_ != par_lang) {
|
|
os << from_ascii(subst(
|
|
lang_end_command,
|
|
"$$lang",
|
|
par_lang));
|
|
pending_newline = !localswitch;
|
|
unskip_newline = !localswitch;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (closing_rtl_ltr_environment)
|
|
os << "}";
|
|
|
|
bool const last_was_separator =
|
|
par.size() > 0 && par.isEnvSeparator(par.size() - 1);
|
|
|
|
if (pending_newline) {
|
|
if (unskip_newline)
|
|
// prevent unwanted whitespace
|
|
os << '%';
|
|
if (!os.afterParbreak() && !last_was_separator)
|
|
os << '\n';
|
|
}
|
|
|
|
// if this is a CJK-paragraph and the next isn't, close CJK
|
|
// also if the next paragraph is a multilingual environment (because of nesting)
|
|
if (nextpar
|
|
&& state->open_encoding_ == CJK
|
|
&& (nextpar_language->encoding()->package() != Encoding::CJK
|
|
|| (nextpar->layout().isEnvironment() && nextpar->isMultiLingual(bparams)))
|
|
// inbetween environments, CJK has to be closed later (nesting!)
|
|
&& (!style.isEnvironment() || !nextpar->layout().isEnvironment())) {
|
|
os << "\\end{CJK}\n";
|
|
state->open_encoding_ = none;
|
|
}
|
|
|
|
// If this is the last paragraph, close the CJK environment
|
|
// if necessary. If it's an environment, we'll have to \end that first.
|
|
if (runparams.isLastPar && !style.isEnvironment()) {
|
|
switch (state->open_encoding_) {
|
|
case CJK: {
|
|
// do nothing at the end of child documents
|
|
if (maintext && buf.masterBuffer() != &buf)
|
|
break;
|
|
// end of main text
|
|
if (maintext) {
|
|
os << "\n\\end{CJK}\n";
|
|
// end of an inset
|
|
} else
|
|
os << "\\end{CJK}";
|
|
state->open_encoding_ = none;
|
|
break;
|
|
}
|
|
case inputenc: {
|
|
os << "\\egroup";
|
|
state->open_encoding_ = none;
|
|
break;
|
|
}
|
|
case none:
|
|
default:
|
|
// do nothing
|
|
break;
|
|
}
|
|
}
|
|
|
|
// If this is the last paragraph, and a local_font was set upon entering
|
|
// the inset, and we're using "auto" or "default" encoding, and not
|
|
// compiling with XeTeX or LuaTeX, the encoding
|
|
// should be set back to that local_font's encoding.
|
|
if (runparams.isLastPar && runparams_in.local_font != 0
|
|
&& runparams_in.encoding != runparams_in.local_font->language()->encoding()
|
|
&& (bparams.inputenc == "auto" || bparams.inputenc == "default")
|
|
&& !runparams.isFullUnicode()
|
|
) {
|
|
runparams_in.encoding = runparams_in.local_font->language()->encoding();
|
|
os << setEncoding(runparams_in.encoding->iconvName());
|
|
}
|
|
// Otherwise, the current encoding should be set for the next paragraph.
|
|
else
|
|
runparams_in.encoding = runparams.encoding;
|
|
|
|
|
|
// we don't need a newline for the last paragraph!!!
|
|
// Note from JMarc: we will re-add a \n explicitly in
|
|
// TeXEnvironment, because it is needed in this case
|
|
if (nextpar && !os.afterParbreak() && !last_was_separator) {
|
|
// Make sure to start a new line
|
|
os << breakln;
|
|
Layout const & next_layout = nextpar->layout();
|
|
// A newline '\n' is always output before a command,
|
|
// so avoid doubling it.
|
|
if (!next_layout.isCommand()) {
|
|
// Here we now try to avoid spurious empty lines by
|
|
// outputting a paragraph break only if: (case 1) the
|
|
// paragraph style allows parbreaks and no \begin, \end
|
|
// or \item tags are going to follow (i.e., if the next
|
|
// isn't the first or the current isn't the last
|
|
// paragraph of an environment or itemize) and the
|
|
// depth and alignment of the following paragraph is
|
|
// unchanged, or (case 2) the following is a
|
|
// non-environment paragraph whose depth is increased
|
|
// but whose alignment is unchanged, or (case 3) the
|
|
// paragraph is not an environment and the next one is a
|
|
// non-itemize-like env at lower depth, or (case 4) the
|
|
// paragraph is a command not followed by an environment
|
|
// and the alignment of the current and next paragraph
|
|
// is unchanged, or (case 5) the current alignment is
|
|
// changed and a standard paragraph follows.
|
|
DocumentClass const & tclass = bparams.documentClass();
|
|
if ((style == next_layout
|
|
&& !style.parbreak_is_newline
|
|
&& !text.inset().getLayout().parbreakIsNewline()
|
|
&& style.latextype != LATEX_ITEM_ENVIRONMENT
|
|
&& style.latextype != LATEX_LIST_ENVIRONMENT
|
|
&& style.align == par.getAlign()
|
|
&& nextpar->getDepth() == par.getDepth()
|
|
&& nextpar->getAlign() == par.getAlign())
|
|
|| (!next_layout.isEnvironment()
|
|
&& nextpar->getDepth() > par.getDepth()
|
|
&& nextpar->getAlign() == par.getAlign())
|
|
|| (!style.isEnvironment()
|
|
&& next_layout.latextype == LATEX_ENVIRONMENT
|
|
&& nextpar->getDepth() < par.getDepth())
|
|
|| (style.isCommand()
|
|
&& !next_layout.isEnvironment()
|
|
&& style.align == par.getAlign()
|
|
&& next_layout.align == nextpar->getAlign())
|
|
|| (style.align != par.getAlign()
|
|
&& tclass.isDefaultLayout(next_layout))) {
|
|
os << '\n';
|
|
}
|
|
}
|
|
}
|
|
|
|
LYXERR(Debug::LATEX, "TeXOnePar for paragraph " << pit << " done; ptr "
|
|
<< &par << " next " << nextpar);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
// LaTeX all paragraphs
|
|
void latexParagraphs(Buffer const & buf,
|
|
Text const & text,
|
|
otexstream & os,
|
|
OutputParams const & runparams,
|
|
string const & everypar)
|
|
{
|
|
LASSERT(runparams.par_begin <= runparams.par_end,
|
|
{ os << "% LaTeX Output Error\n"; return; } );
|
|
|
|
BufferParams const & bparams = buf.params();
|
|
|
|
bool const maintext = text.isMainText();
|
|
bool const is_child = buf.masterBuffer() != &buf;
|
|
|
|
// Open a CJK environment at the beginning of the main buffer
|
|
// if the document's language is a CJK language
|
|
// (but not in child documents)
|
|
OutputState * state = getOutputState();
|
|
if (maintext && !is_child
|
|
&& bparams.encoding().package() == Encoding::CJK) {
|
|
os << "\\begin{CJK}{" << from_ascii(bparams.encoding().latexName())
|
|
<< "}{" << from_ascii(bparams.fonts_cjk) << "}%\n";
|
|
state->open_encoding_ = CJK;
|
|
}
|
|
// if "auto begin" is switched off, explicitly switch the
|
|
// language on at start
|
|
string const mainlang = runparams.use_polyglossia
|
|
? getPolyglossiaEnvName(bparams.language)
|
|
: bparams.language->babel();
|
|
string const lang_begin_command = runparams.use_polyglossia ?
|
|
"\\begin{$$lang}$$opts" : lyxrc.language_command_begin;
|
|
|
|
if (maintext && !lyxrc.language_auto_begin &&
|
|
!mainlang.empty()) {
|
|
// FIXME UNICODE
|
|
string bc = runparams.use_polyglossia ?
|
|
getPolyglossiaBegin(lang_begin_command, mainlang,
|
|
bparams.language->polyglossiaOpts())
|
|
: subst(lang_begin_command, "$$lang", mainlang);
|
|
os << bc;
|
|
os << '\n';
|
|
}
|
|
|
|
ParagraphList const & paragraphs = text.paragraphs();
|
|
|
|
if (runparams.par_begin == runparams.par_end) {
|
|
// The full doc will be exported but it is easier to just rely on
|
|
// runparams range parameters that will be passed TeXEnvironment.
|
|
runparams.par_begin = 0;
|
|
runparams.par_end = paragraphs.size();
|
|
}
|
|
|
|
pit_type pit = runparams.par_begin;
|
|
// lastpit is for the language check after the loop.
|
|
pit_type lastpit = pit;
|
|
// variables used in the loop:
|
|
bool was_title = false;
|
|
bool already_title = false;
|
|
DocumentClass const & tclass = bparams.documentClass();
|
|
|
|
for (; pit < runparams.par_end; ++pit) {
|
|
lastpit = pit;
|
|
ParagraphList::const_iterator par = paragraphs.constIterator(pit);
|
|
|
|
// FIXME This check should not be needed. We should
|
|
// perhaps issue an error if it is.
|
|
Layout const & layout = text.inset().forcePlainLayout() ?
|
|
tclass.plainLayout() : par->layout();
|
|
|
|
if (layout.intitle) {
|
|
if (already_title) {
|
|
LYXERR0("Error in latexParagraphs: You"
|
|
" should not mix title layouts"
|
|
" with normal ones.");
|
|
} else if (!was_title) {
|
|
was_title = true;
|
|
if (tclass.titletype() == TITLE_ENVIRONMENT) {
|
|
os << "\\begin{"
|
|
<< from_ascii(tclass.titlename())
|
|
<< "}\n";
|
|
}
|
|
}
|
|
} else if (was_title && !already_title) {
|
|
if (tclass.titletype() == TITLE_ENVIRONMENT) {
|
|
os << "\\end{" << from_ascii(tclass.titlename())
|
|
<< "}\n";
|
|
}
|
|
else {
|
|
os << "\\" << from_ascii(tclass.titlename())
|
|
<< "\n";
|
|
}
|
|
already_title = true;
|
|
was_title = false;
|
|
}
|
|
|
|
|
|
if (!layout.isEnvironment() && par->params().leftIndent().zero()) {
|
|
// This is a standard top level paragraph, TeX it and continue.
|
|
TeXOnePar(buf, text, pit, os, runparams, everypar);
|
|
continue;
|
|
}
|
|
|
|
TeXEnvironmentData const data =
|
|
prepareEnvironment(buf, text, par, os, runparams);
|
|
// pit can be changed in TeXEnvironment.
|
|
TeXEnvironment(buf, text, runparams, pit, os);
|
|
finishEnvironment(os, runparams, data);
|
|
}
|
|
|
|
if (pit == runparams.par_end) {
|
|
// Make sure that the last paragraph is
|
|
// correctly terminated (because TeXOnePar does
|
|
// not add a \n in this case)
|
|
//os << '\n';
|
|
}
|
|
|
|
// It might be that we only have a title in this document
|
|
if (was_title && !already_title) {
|
|
if (tclass.titletype() == TITLE_ENVIRONMENT) {
|
|
os << "\\end{" << from_ascii(tclass.titlename())
|
|
<< "}\n";
|
|
} else {
|
|
os << "\\" << from_ascii(tclass.titlename())
|
|
<< "\n";
|
|
}
|
|
}
|
|
|
|
// if "auto end" is switched off, explicitly close the language at the end
|
|
// but only if the last par is in a babel or polyglossia language
|
|
string const lang_end_command = runparams.use_polyglossia ?
|
|
"\\end{$$lang}" : lyxrc.language_command_end;
|
|
if (maintext && !lyxrc.language_auto_end && !mainlang.empty() &&
|
|
paragraphs.at(lastpit).getParLanguage(bparams)->encoding()->package() != Encoding::CJK) {
|
|
os << from_utf8(subst(lang_end_command,
|
|
"$$lang",
|
|
mainlang))
|
|
<< '\n';
|
|
if (state->open_polyglossia_lang_ == mainlang)
|
|
state->open_polyglossia_lang_ = "";
|
|
}
|
|
|
|
// If the last paragraph is an environment, we'll have to close
|
|
// CJK at the very end to do proper nesting.
|
|
if (maintext && !is_child && state->open_encoding_ == CJK) {
|
|
os << "\\end{CJK}\n";
|
|
state->open_encoding_ = none;
|
|
}
|
|
// Likewise for polyglossia
|
|
if (maintext && !is_child && state->open_polyglossia_lang_ != "") {
|
|
os << from_utf8(subst(lang_end_command,
|
|
"$$lang",
|
|
state->open_polyglossia_lang_))
|
|
<< '\n';
|
|
state->open_polyglossia_lang_ = "";
|
|
}
|
|
|
|
// reset inherited encoding
|
|
if (state->cjk_inherited_ > 0) {
|
|
state->cjk_inherited_ -= 1;
|
|
if (state->cjk_inherited_ == 0)
|
|
state->open_encoding_ = CJK;
|
|
}
|
|
}
|
|
|
|
|
|
pair<bool, int> switchEncoding(odocstream & os, BufferParams const & bparams,
|
|
OutputParams const & runparams, Encoding const & newEnc,
|
|
bool force)
|
|
{
|
|
// XeTeX/LuaTeX use only one encoding per document:
|
|
// * with useNonTeXFonts: "utf8plain",
|
|
// * with XeTeX and TeX fonts: "ascii" (inputenc fails),
|
|
// * with LuaTeX and TeX fonts: only one encoding accepted by luainputenc.
|
|
if (runparams.isFullUnicode())
|
|
return make_pair(false, 0);
|
|
|
|
Encoding const & oldEnc = *runparams.encoding;
|
|
bool moving_arg = runparams.moving_arg;
|
|
// If we switch from/to CJK, we need to switch anyway, despite custom inputenc
|
|
bool const from_to_cjk =
|
|
(oldEnc.package() == Encoding::CJK && newEnc.package() != Encoding::CJK)
|
|
|| (oldEnc.package() != Encoding::CJK && newEnc.package() == Encoding::CJK);
|
|
if (!force && !from_to_cjk
|
|
&& ((bparams.inputenc != "auto" && bparams.inputenc != "default") || moving_arg))
|
|
return make_pair(false, 0);
|
|
|
|
// Do nothing if the encoding is unchanged.
|
|
if (oldEnc.name() == newEnc.name())
|
|
return make_pair(false, 0);
|
|
|
|
// FIXME We ignore encoding switches from/to encodings that do
|
|
// neither support the inputenc package nor the CJK package here.
|
|
// This does of course only work in special cases (e.g. switch from
|
|
// tis620-0 to latin1, but the text in latin1 contains ASCII only),
|
|
// but it is the best we can do
|
|
if (oldEnc.package() == Encoding::none
|
|
|| newEnc.package() == Encoding::none)
|
|
return make_pair(false, 0);
|
|
|
|
LYXERR(Debug::LATEX, "Changing LaTeX encoding from "
|
|
<< oldEnc.name() << " to " << newEnc.name());
|
|
os << setEncoding(newEnc.iconvName());
|
|
if (bparams.inputenc == "default")
|
|
return make_pair(true, 0);
|
|
|
|
docstring const inputenc_arg(from_ascii(newEnc.latexName()));
|
|
OutputState * state = getOutputState();
|
|
switch (newEnc.package()) {
|
|
case Encoding::none:
|
|
case Encoding::japanese:
|
|
// shouldn't ever reach here, see above
|
|
return make_pair(true, 0);
|
|
case Encoding::inputenc: {
|
|
int count = inputenc_arg.length();
|
|
if (oldEnc.package() == Encoding::CJK &&
|
|
state->open_encoding_ == CJK) {
|
|
os << "\\end{CJK}";
|
|
state->open_encoding_ = none;
|
|
count += 9;
|
|
}
|
|
else if (oldEnc.package() == Encoding::inputenc &&
|
|
state->open_encoding_ == inputenc) {
|
|
os << "\\egroup";
|
|
state->open_encoding_ = none;
|
|
count += 7;
|
|
}
|
|
if (runparams.local_font != 0
|
|
&& oldEnc.package() == Encoding::CJK) {
|
|
// within insets, \inputenc switches need
|
|
// to be embraced within \bgroup...\egroup;
|
|
// else CJK fails.
|
|
os << "\\bgroup";
|
|
count += 7;
|
|
state->open_encoding_ = inputenc;
|
|
}
|
|
// with the japanese option, inputenc is omitted.
|
|
if (runparams.use_japanese)
|
|
return make_pair(true, count);
|
|
os << "\\inputencoding{" << inputenc_arg << '}';
|
|
return make_pair(true, count + 16);
|
|
}
|
|
case Encoding::CJK: {
|
|
int count = inputenc_arg.length();
|
|
if (oldEnc.package() == Encoding::CJK &&
|
|
state->open_encoding_ == CJK) {
|
|
os << "\\end{CJK}";
|
|
count += 9;
|
|
}
|
|
if (oldEnc.package() == Encoding::inputenc &&
|
|
state->open_encoding_ == inputenc) {
|
|
os << "\\egroup";
|
|
count += 7;
|
|
}
|
|
os << "\\begin{CJK}{" << inputenc_arg << "}{"
|
|
<< from_ascii(bparams.fonts_cjk) << "}";
|
|
state->open_encoding_ = CJK;
|
|
return make_pair(true, count + 15);
|
|
}
|
|
}
|
|
// Dead code to avoid a warning:
|
|
return make_pair(true, 0);
|
|
|
|
}
|
|
|
|
} // namespace lyx
|