mirror of
https://git.lyx.org/repos/lyx.git
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59648b5d35
\cprotect'ed insets do not need forced local font switch; in fact files
with this break in compilation. E.g. a caption with an URL containing
the char '#' and caption text set to a secondary language.
(cherry picked from commit 8659924abd)
1959 lines
66 KiB
C++
1959 lines
66 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 "BiblioInfo.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 "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 "texstream.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 "frontends/alert.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/textutils.h"
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#include "support/gettext.h"
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#include <QThreadStorage>
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#include <list>
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#include <stack>
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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() : prev_env_language_(nullptr), open_encoding_(none),
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cjk_inherited_(0), nest_level_(0)
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{
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}
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Language const * prev_env_language_;
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stack<int> lang_switch_depth_; // Both are always empty when
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stack<string> open_polyglossia_lang_; // not using polyglossia
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OpenEncoding open_encoding_;
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int cjk_inherited_;
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int nest_level_;
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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 & openLanguageName(OutputState const * state)
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{
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// Return a reference to the last active language opened with
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// polyglossia or when using begin/end commands. If none or when
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// using babel with only a begin command, return a reference to
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// an empty string.
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static string const empty;
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return state->open_polyglossia_lang_.empty()
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? empty
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: state->open_polyglossia_lang_.top();
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}
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bool atSameLastLangSwitchDepth(OutputState const * state)
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{
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// Return true if the actual nest level is the same at which the
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// language was switched when using polyglossia or begin/end
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// commands. Instead, return always true when using babel with
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// only a begin command.
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return state->lang_switch_depth_.empty()
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? true
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: abs(state->lang_switch_depth_.top()) == state->nest_level_;
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}
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bool isLocalSwitch(OutputState const * state)
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{
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// Return true if the language was opened by a local command switch.
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return !state->lang_switch_depth_.empty()
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&& state->lang_switch_depth_.top() < 0;
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}
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bool langOpenedAtThisLevel(OutputState const * state)
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{
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// Return true if the language was opened at the current nesting level.
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return !state->lang_switch_depth_.empty()
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&& abs(state->lang_switch_depth_.top()) == state->nest_level_;
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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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bool const localswitch = false)
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{
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string result;
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if (!lang.empty()) {
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// we need to revert the upcasing done in getPolyglossiaEnvName()
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// in case we have a local polyglossia command (\textarabic).
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string language = localswitch ? ascii_lowercase(lang) : lang;
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result = subst(lang_begin_command, "$$lang", language);
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}
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string options = opts.empty() ?
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string() : "[" + opts + "]";
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result = subst(result, "$$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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Layout const * style;
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Language const * par_language;
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Encoding const * prev_encoding;
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bool cjk_nested;
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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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bool const firstpar = pit == paragraphs.begin();
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ParagraphList::const_iterator const priorpit =
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firstpar ? 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_ != nullptr
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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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// use font at inset or document language in first paragraph
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firstpar ? (runparams.local_font ?
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runparams.local_font->language()
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: doc_language)
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: (use_prev_env_language ?
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state->prev_env_language_
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: priorpit->getParLanguage(bparams));
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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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bool const using_begin_end = use_polyglossia ||
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!lang_end_command.empty();
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// For polyglossia, switch language outside of environment, if possible.
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// However, if we are at the start of an inset, do not close languages
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// opened outside.
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if (par_lang != prev_par_lang) {
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if (!firstpar
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&& (!using_begin_end || langOpenedAtThisLevel(state))
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&& !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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"$$lang",
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prev_par_lang))
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// the '%' is necessary to prevent unwanted whitespace
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<< "%\n";
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if (using_begin_end)
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popLanguageName();
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}
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// If no language was explicitly opened and we are using
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// polyglossia or begin/end commands, then the current
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// language is the document language.
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string const & cur_lang = using_begin_end
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&& !state->lang_switch_depth_.empty()
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? openLanguageName(state)
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: doc_lang;
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if ((lang_end_command.empty() ||
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par_lang != doc_lang ||
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par_lang != cur_lang) &&
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!par_lang.empty()) {
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string bc = use_polyglossia ?
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getPolyglossiaBegin(lang_begin_command, par_lang,
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data.par_language->polyglossiaOpts())
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: subst(lang_begin_command, "$$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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if (using_begin_end)
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pushLanguageName(par_lang);
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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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state->nest_level_ += 1;
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if (style.isEnvironment() && !style.latexname().empty()) {
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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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if (style.latextype == LATEX_BIB_ENVIRONMENT
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|| style.latextype == LATEX_ITEM_ENVIRONMENT
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|| style.latextype == LATEX_LIST_ENVIRONMENT) {
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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.listpreamble(),
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"listpreamble:");
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}
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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 (!bparams.useNonTeXFonts
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&& (bparams.inputenc == "auto-legacy"
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|| bparams.inputenc == "auto-legacy-plain")
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&& 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}{"
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<< from_ascii(data.par_language->encoding()->latexName())
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<< "}{" << from_ascii(bparams.fonts_cjk) << "}%\n";
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}
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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, bool const maintext,
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bool const lastpar)
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{
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OutputState * state = getOutputState();
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// BufferParams const & bparams = buf.params();
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// 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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bool const using_begin_end =
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runparams.use_polyglossia ||
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!lyxrc.language_command_end.empty();
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// Close any language opened at this nest level
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if (using_begin_end) {
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while (langOpenedAtThisLevel(state)) {
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if (isLocalSwitch(state)) {
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os << "}";
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} else {
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os << "\\end{"
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<< openLanguageName(state)
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<< "}%\n";
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}
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popLanguageName();
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}
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}
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if (data.style->latextype == LATEX_BIB_ENVIRONMENT)
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// bibliography needs a blank line after
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// each item for backref to function properly
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// (see #12041)
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os << '\n';
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state->nest_level_ -= 1;
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string const & name = data.style->latexname();
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if (!name.empty())
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os << "\\end{" << from_ascii(name) << "}\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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// If this is the last par of an inset, the language needs
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// to be closed after the environment
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if (lastpar && !maintext) {
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if (using_begin_end && langOpenedAtThisLevel(state)) {
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if (isLocalSwitch(state)) {
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os << "}";
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} else {
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os << "\\end{"
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<< openLanguageName(state)
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<< "}%\n";
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}
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popLanguageName();
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}
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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_in,
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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 ipar = paragraphs.iterator_at(pit);
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LYXERR(Debug::OUTFILE, "TeXEnvironment for paragraph " << pit);
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Layout const & current_layout = ipar->layout();
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depth_type const current_depth = ipar->params().depth();
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Length const & current_left_indent = ipar->params().leftIndent();
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OutputParams runparams = runparams_in;
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runparams.no_cprotect = current_layout.nocprotect;
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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.iterator_at(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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// Do not output empty environments if the whole paragraph has
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// been deleted with ct and changes are not output.
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bool output_changes;
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if (!runparams.find_effective())
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output_changes = buf.params().output_changes;
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else
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output_changes = runparams.find_with_deleted();
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if (size_t(pit + 1) < paragraphs.size()) {
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ParagraphList::const_iterator nextpar = paragraphs.iterator_at(pit + 1);
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Paragraph const & cpar = paragraphs.at(pit);
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if ((par->layout() != nextpar->layout()
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|| par->params().depth() == nextpar->params().depth()
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|| par->params().leftIndent() == nextpar->params().leftIndent())
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&& !cpar.empty()
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&& cpar.isDeleted(0, cpar.size()) && !output_changes) {
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if (!output_changes && !cpar.parEndChange().deleted())
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os << '\n' << '\n';
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continue;
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}
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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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bool const lastpar = size_t(pit + 1) >= paragraphs.size();
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finishEnvironment(os, runparams, data, text.isMainText(), lastpar);
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}
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if (pit != runparams.par_end)
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LYXERR(Debug::OUTFILE, "TeXEnvironment for paragraph " << par_begin << " done.");
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// set upstream encoding
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runparams_in.encoding = runparams.encoding;
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}
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// FIXME: pass the \c required vector by reference and add the stuff
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// from \c latexargs to a different vector. This avoids a copy and
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// (more importantly?) a coverity defect.
|
|
void getArgInsets(otexstream & os, OutputParams const & runparams,
|
|
Layout::LaTeXArgMap const & latexargs,
|
|
map<size_t, lyx::InsetArgument const *> const & ilist,
|
|
vector<string> required, string const & prefix)
|
|
{
|
|
size_t const argnr = latexargs.size();
|
|
if (argnr == 0)
|
|
return;
|
|
|
|
// Default and preset args are always output, so if they require
|
|
// other arguments, consider this.
|
|
for (auto const & larg : latexargs) {
|
|
Layout::latexarg const & arg = larg.second;
|
|
if ((!arg.presetarg.empty() || !arg.defaultarg.empty()) && !arg.required.empty()) {
|
|
vector<string> req = getVectorFromString(arg.required);
|
|
required.insert(required.end(), req.begin(), req.end());
|
|
}
|
|
}
|
|
|
|
for (size_t i = 1; i <= argnr; ++i) {
|
|
map<size_t, InsetArgument const *>::const_iterator lit = ilist.find(i);
|
|
bool inserted = false;
|
|
if (lit != ilist.end()) {
|
|
InsetArgument const * ins = lit->second;
|
|
if (ins) {
|
|
Layout::LaTeXArgMap::const_iterator const lait =
|
|
latexargs.find(ins->name());
|
|
if (lait != latexargs.end()) {
|
|
Layout::latexarg arg = lait->second;
|
|
docstring ldelim;
|
|
docstring rdelim;
|
|
if (!arg.nodelims) {
|
|
ldelim = arg.mandatory ?
|
|
from_ascii("{") : from_ascii("[");
|
|
rdelim = arg.mandatory ?
|
|
from_ascii("}") : from_ascii("]");
|
|
}
|
|
if (!arg.ldelim.empty())
|
|
ldelim = arg.ldelim;
|
|
if (!arg.rdelim.empty())
|
|
rdelim = arg.rdelim;
|
|
ins->latexArgument(os, runparams, ldelim, rdelim, arg.presetarg);
|
|
if (prefix == "listpreamble:")
|
|
os << breakln;
|
|
inserted = true;
|
|
}
|
|
}
|
|
}
|
|
if (!inserted) {
|
|
Layout::LaTeXArgMap::const_iterator lait = latexargs.begin();
|
|
Layout::LaTeXArgMap::const_iterator const laend = latexargs.end();
|
|
for (; lait != laend; ++lait) {
|
|
string const name = prefix + convert<string>(i);
|
|
if ((*lait).first == name) {
|
|
Layout::latexarg arg = (*lait).second;
|
|
docstring preset = arg.presetarg;
|
|
if (!arg.defaultarg.empty()) {
|
|
if (!preset.empty())
|
|
preset += ",";
|
|
preset += arg.defaultarg;
|
|
}
|
|
if (arg.mandatory) {
|
|
docstring ldelim = arg.ldelim.empty() ?
|
|
from_ascii("{") : arg.ldelim;
|
|
docstring rdelim = arg.rdelim.empty() ?
|
|
from_ascii("}") : arg.rdelim;
|
|
os << ldelim << preset << rdelim;
|
|
} else if (!preset.empty()) {
|
|
docstring ldelim = arg.ldelim.empty() ?
|
|
from_ascii("[") : arg.ldelim;
|
|
docstring rdelim = arg.rdelim.empty() ?
|
|
from_ascii("]") : arg.rdelim;
|
|
os << ldelim << preset << rdelim;
|
|
} else if (find(required.begin(), required.end(),
|
|
(*lait).first) != required.end()) {
|
|
docstring ldelim = arg.ldelim.empty() ?
|
|
from_ascii("[") : arg.ldelim;
|
|
docstring rdelim = arg.rdelim.empty() ?
|
|
from_ascii("]") : arg.rdelim;
|
|
os << ldelim << rdelim;
|
|
} else
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (runparams.find_effective() && argnr > 1) {
|
|
// Mark end of arguments for findadv() only
|
|
os << "\\endarguments{}";
|
|
}
|
|
}
|
|
|
|
|
|
} // namespace
|
|
|
|
|
|
void pushLanguageName(string const & lang_name, bool localswitch)
|
|
{
|
|
OutputState * state = getOutputState();
|
|
|
|
int nest_level = localswitch ? -state->nest_level_ : state->nest_level_;
|
|
state->lang_switch_depth_.push(nest_level);
|
|
state->open_polyglossia_lang_.push(lang_name);
|
|
}
|
|
|
|
|
|
void popLanguageName()
|
|
{
|
|
OutputState * state = getOutputState();
|
|
|
|
state->lang_switch_depth_.pop();
|
|
state->open_polyglossia_lang_.pop();
|
|
}
|
|
|
|
|
|
bool languageStackEmpty()
|
|
{
|
|
OutputState * state = getOutputState();
|
|
|
|
return state->lang_switch_depth_.empty();
|
|
}
|
|
|
|
|
|
string const & openLanguageName()
|
|
{
|
|
OutputState * state = getOutputState();
|
|
|
|
return openLanguageName(state);
|
|
}
|
|
|
|
|
|
namespace {
|
|
|
|
void addArgInsets(Paragraph const & par, string const & prefix,
|
|
Layout::LaTeXArgMap const & latexargs,
|
|
map<size_t, InsetArgument const *> & ilist,
|
|
vector<string> & required)
|
|
{
|
|
for (auto const & table : par.insetList()) {
|
|
InsetArgument const * arg = table.inset->asInsetArgument();
|
|
if (!arg)
|
|
continue;
|
|
if (arg->name().empty()) {
|
|
LYXERR0("Error: Unnamed argument inset!");
|
|
continue;
|
|
}
|
|
string const name = prefix.empty() ?
|
|
arg->name() : split(arg->name(), ':');
|
|
size_t const nr = convert<size_t>(name);
|
|
ilist.insert({nr, arg});
|
|
Layout::LaTeXArgMap::const_iterator const lit =
|
|
latexargs.find(arg->name());
|
|
if (lit != latexargs.end()) {
|
|
Layout::latexarg const & larg = lit->second;
|
|
vector<string> req = getVectorFromString(larg.required);
|
|
move(req.begin(), req.end(), back_inserter(required));
|
|
}
|
|
}
|
|
}
|
|
|
|
} // namespace
|
|
|
|
|
|
void latexArgInsets(Paragraph const & par, otexstream & os,
|
|
OutputParams const & runparams,
|
|
Layout::LaTeXArgMap const & latexargs,
|
|
string const & prefix)
|
|
{
|
|
map<size_t, InsetArgument const *> ilist;
|
|
vector<string> required;
|
|
addArgInsets(par, prefix, latexargs, ilist, required);
|
|
getArgInsets(os, runparams, latexargs, ilist, required, prefix);
|
|
}
|
|
|
|
|
|
void latexArgInsets(ParagraphList const & pars,
|
|
ParagraphList::const_iterator pit,
|
|
otexstream & os, OutputParams const & runparams,
|
|
Layout::LaTeXArgMap const & latexargs,
|
|
string const & prefix)
|
|
{
|
|
map<size_t, InsetArgument const *> ilist;
|
|
vector<string> required;
|
|
|
|
depth_type const current_depth = pit->params().depth();
|
|
Layout const current_layout = pit->layout();
|
|
|
|
// get the first paragraph in sequence with this layout and depth
|
|
ptrdiff_t offset = 0;
|
|
while (true) {
|
|
if (prev(pit, offset) == pars.begin())
|
|
break;
|
|
ParagraphList::const_iterator priorpit = prev(pit, offset + 1);
|
|
if (priorpit->layout() == current_layout
|
|
&& priorpit->params().depth() == current_depth)
|
|
++offset;
|
|
else
|
|
break;
|
|
}
|
|
|
|
ParagraphList::const_iterator spit = prev(pit, offset);
|
|
for (; spit != pars.end(); ++spit) {
|
|
if (spit->layout() != current_layout ||
|
|
spit->params().depth() < current_depth)
|
|
break;
|
|
if (spit->params().depth() > current_depth)
|
|
continue;
|
|
addArgInsets(*spit, prefix, latexargs, ilist, required);
|
|
}
|
|
getArgInsets(os, runparams, latexargs, ilist, required, prefix);
|
|
}
|
|
|
|
|
|
void latexArgInsetsForParent(ParagraphList const & pars, otexstream & os,
|
|
OutputParams const & runparams,
|
|
Layout::LaTeXArgMap const & latexargs,
|
|
string const & prefix)
|
|
{
|
|
map<size_t, InsetArgument const *> ilist;
|
|
vector<string> required;
|
|
|
|
for (Paragraph const & par : pars) {
|
|
if (par.layout().hasArgs())
|
|
// The InsetArguments inside this paragraph refer to this paragraph
|
|
continue;
|
|
addArgInsets(par, prefix, latexargs, ilist, required);
|
|
}
|
|
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:
|
|
if (!runparams.no_cprotect && par.needsCProtection(runparams.moving_arg)) {
|
|
if (contains(runparams.active_chars, '^'))
|
|
// cprotect relies on ^ being on catcode 7
|
|
os << "\\begingroup\\catcode`\\^=7";
|
|
os << "\\cprotect";
|
|
}
|
|
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:
|
|
if (runparams.find_effective()) {
|
|
os << "\\" + style.itemcommand() << "{" << style.latexname() << "}";
|
|
}
|
|
else {
|
|
os << "\\" + style.itemcommand();
|
|
// Item arguments
|
|
if (!style.itemargs().empty())
|
|
latexArgInsets(par, os, runparams, style.itemargs(), "item:");
|
|
os << " ";
|
|
}
|
|
break;
|
|
case LATEX_ENVIRONMENT:
|
|
if (runparams.find_effective()) {
|
|
os << "\\latexenvironment{" << style.latexname() << "}{";
|
|
}
|
|
break;
|
|
case LATEX_BIB_ENVIRONMENT:
|
|
// ignore this, the inset will write itself
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
} // namespace
|
|
|
|
// 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,
|
|
bool const force)
|
|
{
|
|
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 && !force)
|
|
return;
|
|
|
|
// Do not output empty commands if the whole paragraph has
|
|
// been deleted with ct and changes are not output.
|
|
if (!runparams_in.find_with_deleted() && style.latextype != LATEX_ENVIRONMENT
|
|
&& !par.empty() && par.isDeleted(0, par.size()) && !bparams.output_changes)
|
|
return;
|
|
|
|
LYXERR(Debug::OUTFILE, "TeXOnePar for paragraph " << pit << " ptr " << &par << " '"
|
|
<< everypar << "'");
|
|
|
|
OutputParams runparams = runparams_in;
|
|
runparams.isLastPar = (pit == pit_type(paragraphs.size() - 1));
|
|
// We reinitialize 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;
|
|
}
|
|
|
|
// This paragraph is merged and we do not show changes in the output
|
|
bool const merged_par = !bparams.output_changes && par.parEndChange().deleted();
|
|
|
|
if (text.inset().isPassThru()) {
|
|
Font const outerfont = text.outerFont(pit);
|
|
|
|
// No newline before first paragraph in this lyxtext
|
|
if (pit > 0 && !text.inset().getLayout().parbreakIgnored() && !merged_par) {
|
|
os << '\n';
|
|
if (!text.inset().getLayout().parbreakIsNewline())
|
|
os << '\n';
|
|
}
|
|
|
|
par.latex(bparams, outerfont, os, runparams, start_pos, end_pos, force);
|
|
return;
|
|
}
|
|
|
|
Paragraph const * nextpar = runparams.isLastPar
|
|
? nullptr : ¶graphs.at(pit + 1);
|
|
|
|
bool const intitle_command = style.intitle && style.isCommand();
|
|
// Intitle commands switch languages locally, thus increase
|
|
// language nesting level
|
|
if (intitle_command)
|
|
state->nest_level_ += 1;
|
|
|
|
if (style.pass_thru) {
|
|
Font const outerfont = text.outerFont(pit);
|
|
parStartCommand(par, os, runparams, style);
|
|
if (style.isCommand() && style.needprotect)
|
|
// Due to the moving argument, some fragile
|
|
// commands (labels, index entries)
|
|
// are output after this command (#2154)
|
|
runparams.postpone_fragile_stuff =
|
|
bparams.postpone_fragile_content;
|
|
if (intitle_command)
|
|
os << '{';
|
|
|
|
par.latex(bparams, outerfont, os, runparams, start_pos, end_pos, force);
|
|
|
|
// 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 << "}";
|
|
if (!runparams.no_cprotect && par.needsCProtection(runparams.moving_arg)
|
|
&& contains(runparams.active_chars, '^'))
|
|
os << "\\endgroup";
|
|
if (merged_par)
|
|
os << "{}";
|
|
else
|
|
os << "\n";
|
|
}
|
|
else if (!merged_par)
|
|
os << '\n';
|
|
if (!style.parbreak_is_newline && !merged_par) {
|
|
os << '\n';
|
|
} else if (nextpar && !style.isEnvironment()) {
|
|
Layout const nextstyle = text.inset().forcePlainLayout()
|
|
? bparams.documentClass().plainLayout()
|
|
: nextpar->layout();
|
|
if (nextstyle.name() != style.name() && !merged_par)
|
|
os << '\n';
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
// This paragraph's language
|
|
Language const * const par_language = par.getParLanguage(bparams);
|
|
Language const * const nextpar_language = nextpar ?
|
|
nextpar->getParLanguage(bparams) : nullptr;
|
|
// 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 != nullptr) ?
|
|
runparams.local_font->language() : doc_language;
|
|
|
|
Paragraph const * priorpar = (pit == 0) ? nullptr : ¶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.
|
|
// Note further that we take the outer language also if the prior par
|
|
// is PassThru, since in that case it has latex_language, and all secondary
|
|
// languages have been closed (#10793).
|
|
bool const use_prev_env_language = state->prev_env_language_ != nullptr
|
|
&& priorpar
|
|
&& priorpar->layout().isEnvironment()
|
|
&& (priorpar->getDepth() > par.getDepth()
|
|
|| (priorpar->getDepth() == par.getDepth()
|
|
&& priorpar->layout() != par.layout()));
|
|
|
|
// We need to ignore previous intitle commands since languages
|
|
// are switched locally there (# 11514)
|
|
// There might be paragraphs before the title, so we check this.
|
|
Paragraph * prior_nontitle_par = nullptr;
|
|
if (!intitle_command) {
|
|
pit_type ppit = pit;
|
|
while (ppit > 0) {
|
|
--ppit;
|
|
Paragraph const * tmppar = ¶graphs.at(ppit);
|
|
if (tmppar->layout().intitle && tmppar->layout().isCommand())
|
|
continue;
|
|
prior_nontitle_par = const_cast<Paragraph*>(tmppar);
|
|
break;
|
|
}
|
|
}
|
|
bool const have_prior_nptpar =
|
|
prior_nontitle_par && !prior_nontitle_par->isPassThru();
|
|
Language const * const prev_language =
|
|
runparams_in.find_effective()
|
|
? languages.getLanguage("ignore")
|
|
: (have_prior_nptpar)
|
|
? (use_prev_env_language
|
|
? state->prev_env_language_
|
|
: prior_nontitle_par->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{$$lang}" : lyxrc.language_command_end;
|
|
// the '%' is necessary to prevent unwanted whitespace
|
|
string lang_command_termination = "%\n";
|
|
bool const using_begin_end = use_polyglossia ||
|
|
!lang_end_command.empty();
|
|
|
|
// For InTitle commands, we need to switch the language inside the command
|
|
// (see #10849); thus open the command here.
|
|
if (intitle_command) {
|
|
parStartCommand(par, os, runparams, style);
|
|
if (style.isCommand() && style.needprotect)
|
|
// Due to the moving argument, some fragile
|
|
// commands (labels, index entries)
|
|
// are output after this command (#2154)
|
|
runparams.postpone_fragile_stuff =
|
|
bparams.postpone_fragile_content;
|
|
os << '{';
|
|
}
|
|
|
|
// In some insets (such as Arguments), we cannot use \selectlanguage.
|
|
// Also, if an RTL language is set via environment in polyglossia,
|
|
// only a nested \\text<lang> command will reset the direction for LTR
|
|
// languages (see # 10111).
|
|
bool const in_polyglossia_rtl_env =
|
|
use_polyglossia
|
|
&& runparams.local_font != nullptr
|
|
&& outer_language->rightToLeft()
|
|
&& !par_language->rightToLeft()
|
|
&& !(have_prior_nptpar
|
|
&& (prev_language->rightToLeft() != par_language->rightToLeft()));
|
|
bool const localswitch =
|
|
(runparams_in.find_effective()
|
|
// \cprotect'ed insets do not need, and actually
|
|
// break with, local switches
|
|
|| (text.inset().forceLocalFontSwitch()
|
|
&& !text.inset().needsCProtection(maintext, runparams.moving_arg))
|
|
|| (using_begin_end && text.inset().forcePlainLayout())
|
|
|| in_polyglossia_rtl_env)
|
|
&& !text.inset().forceParDirectionSwitch();
|
|
if (localswitch) {
|
|
lang_begin_command = use_polyglossia ?
|
|
"\\text$$lang$$opts{" : lyxrc.language_command_local;
|
|
lang_end_command = "}";
|
|
lang_command_termination.clear();
|
|
}
|
|
|
|
bool const localswitch_needed = localswitch && par_lang != outer_lang;
|
|
|
|
// localswitches need to be closed and reopened at each par
|
|
if (runparams_in.find_effective() || ((par_lang != prev_lang || localswitch_needed)
|
|
// check if we already put language command in TeXEnvironment()
|
|
&& !(style.isEnvironment()
|
|
&& (pit == 0 || (priorpar->layout() != par.layout()
|
|
&& priorpar->getDepth() <= par.getDepth())
|
|
|| priorpar->getDepth() < par.getDepth())))) {
|
|
if (!localswitch
|
|
&& (!using_begin_end || langOpenedAtThisLevel(state))
|
|
&& !lang_end_command.empty()
|
|
&& prev_lang != outer_lang
|
|
&& !prev_lang.empty()
|
|
&& (!using_begin_end || !style.isEnvironment())) {
|
|
os << from_ascii(subst(lang_end_command,
|
|
"$$lang",
|
|
prev_lang))
|
|
<< lang_command_termination;
|
|
if (using_begin_end)
|
|
popLanguageName();
|
|
}
|
|
|
|
// 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
|
|
|| (!using_begin_end
|
|
|| (style.isEnvironment() && par_lang != prev_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 (!using_begin_end
|
|
// not for ArabTeX
|
|
&& par_language->lang() != "arabic_arabtex"
|
|
&& outer_language->lang() != "arabic_arabtex"
|
|
// are we in an inset?
|
|
&& runparams.local_font != nullptr
|
|
// 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() && !runparams.isFullUnicode())
|
|
os << "\\R{";
|
|
else
|
|
os << "\\L{";
|
|
}
|
|
// With CJK, the CJK tag has to be closed first (see below)
|
|
if ((runparams.encoding->package() != Encoding::CJK
|
|
|| bparams.useNonTeXFonts
|
|
|| runparams.find_effective())
|
|
&& (par_lang != openLanguageName(state) || localswitch || intitle_command)
|
|
&& !par_lang.empty()) {
|
|
string bc = use_polyglossia ?
|
|
getPolyglossiaBegin(lang_begin_command, par_lang,
|
|
par_language->polyglossiaOpts(),
|
|
localswitch)
|
|
: subst(lang_begin_command, "$$lang", par_lang);
|
|
os << bc;
|
|
os << lang_command_termination;
|
|
if (using_begin_end)
|
|
pushLanguageName(par_lang, localswitch);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Switch file encoding if necessary; no need to do this for "auto-legacy-plain"
|
|
// encoding, since this only affects the position of the outputted
|
|
// \inputencoding command; the encoding switch will occur when necessary
|
|
if (bparams.inputenc == "auto-legacy"
|
|
&& !runparams.isFullUnicode() // Xe/LuaTeX use one document-wide encoding (see also switchEncoding())
|
|
&& runparams.encoding->package() != Encoding::japanese
|
|
&& 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 != openLanguageName(state)
|
|
&& !par_lang.empty()) {
|
|
os << subst(lang_begin_command, "$$lang", par_lang)
|
|
<< lang_command_termination;
|
|
if (using_begin_end)
|
|
pushLanguageName(par_lang, localswitch);
|
|
}
|
|
runparams.encoding = encoding;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
runparams.moving_arg |= style.needprotect;
|
|
if (style.needmboxprotect)
|
|
++runparams.inulemcmd;
|
|
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";
|
|
}
|
|
|
|
// InTitle commands must use switches (not environments)
|
|
// inside the commands (see #9332)
|
|
if (style.intitle) {
|
|
if (!par.params().spacing().isDefault())
|
|
{
|
|
if (runparams.moving_arg)
|
|
os << "\\protect";
|
|
os << from_ascii(par.params().spacing().writeCmd(useSetSpace));
|
|
}
|
|
} else {
|
|
if (!par.params().spacing().isDefault()
|
|
&& (pit == 0 || !priorpar->hasSameLayout(par)))
|
|
{
|
|
os << from_ascii(par.params().spacing().writeEnvirBegin(useSetSpace))
|
|
<< '\n';
|
|
}
|
|
|
|
if (style.isCommand()) {
|
|
os << '\n';
|
|
}
|
|
}
|
|
}
|
|
|
|
// For InTitle commands, we already started the command before
|
|
// the language switch
|
|
if (!intitle_command) {
|
|
parStartCommand(par, os, runparams, style);
|
|
if (style.isCommand() && style.needprotect)
|
|
// Due to the moving argument, some fragile
|
|
// commands (labels, index entries)
|
|
// are output after this command (#2154)
|
|
runparams.postpone_fragile_stuff =
|
|
bparams.postpone_fragile_content;
|
|
}
|
|
|
|
Font const outerfont = text.outerFont(pit);
|
|
|
|
// FIXME UNICODE
|
|
os << from_utf8(everypar);
|
|
par.latex(bparams, outerfont, os, runparams, start_pos, end_pos, force);
|
|
|
|
Font const font = par.empty()
|
|
? par.getLayoutFont(bparams, outerfont)
|
|
: par.getFont(bparams, par.size() - 1, outerfont);
|
|
|
|
bool const is_command = style.isCommand();
|
|
|
|
bool const last_was_separator =
|
|
!par.empty() && par.isEnvSeparator(par.size() - 1);
|
|
|
|
// InTitle commands need to be closed after the language has been closed.
|
|
if (!intitle_command) {
|
|
if (is_command) {
|
|
// Signify added/deleted par break in output if show changes in output
|
|
if (nextpar && !os.afterParbreak() && !last_was_separator
|
|
&& bparams.output_changes && par.parEndChange().changed()) {
|
|
Changes::latexMarkChange(os, bparams, Change(Change::UNCHANGED),
|
|
par.parEndChange(), runparams);
|
|
os << bparams.encoding().latexString(docstring(1, 0x00b6)).first << "}";
|
|
}
|
|
os << '}';
|
|
if (!style.postcommandargs().empty())
|
|
latexArgInsets(par, os, runparams, style.postcommandargs(), "post:");
|
|
if (!runparams.post_macro.empty()) {
|
|
// Output the stored fragile commands (labels, indices etc.)
|
|
// that need to be output after the command with moving argument.
|
|
os << runparams.post_macro;
|
|
runparams.post_macro.clear();
|
|
}
|
|
if (!runparams.no_cprotect && par.needsCProtection(runparams.moving_arg)
|
|
&& contains(runparams.active_chars, '^'))
|
|
os << "\\endgroup";
|
|
if (runparams.encoding != prev_encoding) {
|
|
runparams.encoding = prev_encoding;
|
|
os << setEncoding(prev_encoding->iconvName());
|
|
}
|
|
}
|
|
}
|
|
|
|
bool pending_newline = false;
|
|
bool unskip_newline = false;
|
|
bool close_lang_switch = false;
|
|
switch (style.latextype) {
|
|
case LATEX_ITEM_ENVIRONMENT:
|
|
case LATEX_LIST_ENVIRONMENT:
|
|
if ((nextpar && par_lang != nextpar_lang
|
|
&& nextpar->getDepth() == par.getDepth())
|
|
|| (atSameLastLangSwitchDepth(state) && nextpar
|
|
&& nextpar->getDepth() < par.getDepth()))
|
|
close_lang_switch = using_begin_end;
|
|
if (nextpar && par.params().depth() < nextpar->params().depth())
|
|
pending_newline = !text.inset().getLayout().parbreakIgnored() && !merged_par;
|
|
break;
|
|
case LATEX_ENVIRONMENT: {
|
|
// if it's the last paragraph of the current environment
|
|
// skip it otherwise fall through
|
|
if (nextpar
|
|
&& ((nextpar->layout() != par.layout()
|
|
|| nextpar->params().depth() != par.params().depth())
|
|
|| (!using_begin_end || par_lang != nextpar_lang)))
|
|
{
|
|
close_lang_switch = using_begin_end;
|
|
break;
|
|
}
|
|
}
|
|
// possible
|
|
// fall through
|
|
default:
|
|
// we don't need it for the last paragraph and in InTitle commands!!!
|
|
if (nextpar && !intitle_command)
|
|
pending_newline = !text.inset().getLayout().parbreakIgnored() && !merged_par;
|
|
}
|
|
|
|
// InTitle commands use switches (not environments) for space settings
|
|
if (par.allowParagraphCustomization() && !style.intitle) {
|
|
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 in a given language
|
|
// as well as for any InTitleCommand (since these set the language locally);
|
|
// 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 = !using_begin_end
|
|
// not for ArabTeX
|
|
&& (par_language->lang() != "arabic_arabtex"
|
|
&& outer_language->lang() != "arabic_arabtex")
|
|
// have we opened an \L or \R environment?
|
|
&& runparams.local_font != nullptr
|
|
&& 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 (localswitch_needed
|
|
|| (intitle_command && using_begin_end)
|
|
|| closing_rtl_ltr_environment
|
|
|| (((runparams.isLastPar
|
|
&& (using_begin_end
|
|
// Since \selectlanguage write the language to the aux file,
|
|
// we need to reset the language at the end of footnote or
|
|
// float.
|
|
|| runparams.inFloat != OutputParams::NONFLOAT || runparams.inFootnote
|
|
// Same for maintext in children (see below)
|
|
|| maintext))
|
|
|| close_lang_switch)
|
|
&& (par_lang != outer_lang || (using_begin_end
|
|
&& style.isEnvironment()
|
|
&& par_lang != nextpar_lang)))) {
|
|
|
|
if (!localswitch && (pending_newline || close_lang_switch))
|
|
os << '\n';
|
|
|
|
// when the paragraph uses CJK, the language has to be closed earlier
|
|
if ((font.language()->encoding()->package() != Encoding::CJK)
|
|
|| bparams.useNonTeXFonts
|
|
|| runparams_in.find_effective()) {
|
|
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()
|
|
&& current_lang != openLanguageName(state)) {
|
|
string bc = use_polyglossia ?
|
|
getPolyglossiaBegin(lang_begin_command, current_lang,
|
|
current_language->polyglossiaOpts(),
|
|
localswitch)
|
|
: subst(lang_begin_command, "$$lang", current_lang);
|
|
os << bc;
|
|
pending_newline = !localswitch
|
|
&& !text.inset().getLayout().parbreakIgnored();
|
|
unskip_newline = !localswitch;
|
|
if (using_begin_end)
|
|
pushLanguageName(current_lang, localswitch);
|
|
}
|
|
} else if ((!using_begin_end ||
|
|
langOpenedAtThisLevel(state)) &&
|
|
!par_lang.empty()) {
|
|
// If we are in an environment, we have to
|
|
// close the "outer" language afterwards
|
|
string const & cur_lang = openLanguageName(state);
|
|
if (!style.isEnvironment()
|
|
|| (close_lang_switch
|
|
&& atSameLastLangSwitchDepth(state)
|
|
&& par_lang != outer_lang
|
|
&& (par_lang != cur_lang
|
|
|| (cur_lang != outer_lang
|
|
&& nextpar
|
|
&& style != nextpar->layout())))
|
|
|| (atSameLastLangSwitchDepth(state)
|
|
&& !state->lang_switch_depth_.empty()
|
|
&& cur_lang != par_lang)
|
|
|| in_polyglossia_rtl_env)
|
|
{
|
|
if (using_begin_end && !localswitch)
|
|
os << breakln;
|
|
os << from_ascii(subst(
|
|
lang_end_command,
|
|
"$$lang",
|
|
par_lang));
|
|
pending_newline = !localswitch
|
|
&& !text.inset().getLayout().parbreakIgnored();
|
|
unskip_newline = !localswitch;
|
|
if (using_begin_end)
|
|
popLanguageName();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (closing_rtl_ltr_environment)
|
|
os << "}";
|
|
|
|
// InTitle commands need to be closed after the language has been closed.
|
|
if (intitle_command) {
|
|
os << '}';
|
|
if (!style.postcommandargs().empty())
|
|
latexArgInsets(par, os, runparams, style.postcommandargs(), "post:");
|
|
if (!runparams.post_macro.empty()) {
|
|
// Output the stored fragile commands (labels, indices etc.)
|
|
// that need to be output after the command with moving argument.
|
|
os << runparams.post_macro;
|
|
runparams.post_macro.clear();
|
|
}
|
|
if (!runparams.no_cprotect && par.needsCProtection(runparams.moving_arg)
|
|
&& contains(runparams.active_chars, '^'))
|
|
os << "\\endgroup";
|
|
if (runparams.encoding != prev_encoding) {
|
|
runparams.encoding = prev_encoding;
|
|
os << setEncoding(prev_encoding->iconvName());
|
|
}
|
|
}
|
|
|
|
// Signify added/deleted par break in output if show changes in output
|
|
if ((intitle_command || !is_command) && nextpar && !os.afterParbreak() && !last_was_separator
|
|
&& bparams.output_changes && par.parEndChange().changed()) {
|
|
Changes::latexMarkChange(os, bparams, Change(Change::UNCHANGED),
|
|
par.parEndChange(), runparams);
|
|
os << bparams.encoding().latexString(docstring(1, 0x00b6)).first << "}";
|
|
}
|
|
|
|
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
|
|
&& bparams.encoding().iconvName() != "UTF-8"
|
|
&& bparams.encoding().package() != Encoding::CJK
|
|
&& ((nextpar_language &&
|
|
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 or nested in an environment,
|
|
// we'll have to \end that first.
|
|
if (runparams.isLastPar && !style.isEnvironment()
|
|
&& par.params().depth() < 1) {
|
|
switch (state->open_encoding_) {
|
|
case CJK: {
|
|
// do nothing at the end of child documents
|
|
if (maintext && buf.masterBuffer() != &buf)
|
|
break;
|
|
// end of main text: also insert a \clearpage (see #5386)
|
|
if (maintext) {
|
|
os << "\n\\clearpage\n\\end{CJK}\n";
|
|
// end of an inset
|
|
} else
|
|
os << "\\end{CJK}";
|
|
state->open_encoding_ = none;
|
|
break;
|
|
}
|
|
case inputenc: {
|
|
// FIXME: If we are in an inset and the switch happened outside this inset,
|
|
// do not switch back at the end of the inset (bug #8479)
|
|
// The following attempt does not help with listings-caption in a CJK document:
|
|
// if (runparams_in.local_font != 0
|
|
// && runparams_in.encoding == runparams_in.local_font->language()->encoding())
|
|
// break;
|
|
os << "\\egroup";
|
|
state->open_encoding_ = none;
|
|
break;
|
|
}
|
|
case none:
|
|
default:
|
|
// do nothing
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Information about local language is stored as a font feature.
|
|
// If this is the last paragraph of the inset and a local_font was set upon entering
|
|
// and we are mixing encodings ("auto-legacy" or "auto-legacy-plain" and no XeTeX or LuaTeX),
|
|
// ensure the encoding is set back to the default encoding of the local language.
|
|
if (runparams.isLastPar && runparams_in.local_font != nullptr
|
|
&& runparams_in.encoding != runparams_in.local_font->language()->encoding()
|
|
&& (bparams.inputenc == "auto-legacy" || bparams.inputenc == "auto-legacy-plain")
|
|
&& !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;
|
|
|
|
// Also pass the post_macros upstream
|
|
runparams_in.post_macro = runparams.post_macro;
|
|
// These need to be passed upstream as well
|
|
runparams_in.need_maketitle = runparams.need_maketitle;
|
|
runparams_in.have_maketitle = runparams.have_maketitle;
|
|
|
|
|
|
// 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) {
|
|
if (!text.inset().getLayout().parbreakIgnored() && !merged_par)
|
|
// Make sure to start a new line
|
|
os << breakln;
|
|
// A newline '\n' is always output before a command,
|
|
// so avoid doubling it.
|
|
Layout const & next_layout = nextpar->layout();
|
|
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()
|
|
&& !text.inset().getLayout().parbreakIgnored()
|
|
&& style.latextype != LATEX_ITEM_ENVIRONMENT
|
|
&& style.latextype != LATEX_LIST_ENVIRONMENT
|
|
&& style.align == par.getAlign(bparams)
|
|
&& nextpar->getDepth() == par.getDepth()
|
|
&& (nextpar->getAlign(bparams) == par.getAlign(bparams)
|
|
|| par.params().spacing() != nextpar->params().spacing()))
|
|
|| (!next_layout.isEnvironment()
|
|
&& nextpar->getDepth() > par.getDepth()
|
|
&& nextpar->getAlign(bparams) == next_layout.align)
|
|
|| (!style.isEnvironment()
|
|
&& next_layout.latextype == LATEX_ENVIRONMENT
|
|
&& nextpar->getDepth() < par.getDepth())
|
|
|| (style.isCommand()
|
|
&& !next_layout.isEnvironment()
|
|
&& style.align == par.getAlign(bparams)
|
|
&& next_layout.align == nextpar->getAlign(bparams))
|
|
|| (style.align != par.getAlign(bparams)
|
|
&& tclass.isDefaultLayout(next_layout))) {
|
|
// and omit paragraph break if it has been deleted with ct
|
|
// and changes are not shown in output
|
|
if (!merged_par) {
|
|
if (runparams.isNonLong)
|
|
// This is to allow parbreak in multirow
|
|
// It could also be used for other non-long
|
|
// contexts
|
|
os << "\\endgraf\n";
|
|
else
|
|
os << '\n';
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Reset language nesting level after intitle command
|
|
if (intitle_command)
|
|
state->nest_level_ -= 1;
|
|
|
|
LYXERR(Debug::OUTFILE, "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();
|
|
BufferParams const & mparams = buf.masterParams();
|
|
|
|
bool const maintext = text.isMainText();
|
|
bool const is_child = buf.masterBuffer() != &buf;
|
|
bool const multibib_child = maintext && is_child
|
|
&& mparams.multibib == "child";
|
|
|
|
if (multibib_child && mparams.useBiblatex())
|
|
os << "\\newrefsection";
|
|
else if (multibib_child && mparams.useBibtopic()
|
|
&& !buf.masterBibInfo().empty()) {
|
|
os << "\\begin{btUnit}\n";
|
|
runparams.openbtUnit = true;
|
|
}
|
|
|
|
// Open a CJK environment at the beginning of the main buffer
|
|
// if the document's main encoding requires the CJK package
|
|
// or the document encoding is utf8 and the CJK package is required
|
|
// (but not in child documents or documents using system fonts):
|
|
OutputState * state = getOutputState();
|
|
if (maintext && !is_child && !bparams.useNonTeXFonts
|
|
&& (bparams.encoding().package() == Encoding::CJK
|
|
|| (bparams.encoding().name() == "utf8"
|
|
&& runparams.use_CJK))
|
|
) {
|
|
docstring const cjkenc = bparams.encoding().iconvName() == "UTF-8"
|
|
? from_ascii("UTF8")
|
|
: from_ascii(bparams.encoding().latexName());
|
|
os << "\\begin{CJK}{" << cjkenc
|
|
<< "}{" << 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;
|
|
string const lang_end_command = runparams.use_polyglossia ?
|
|
"\\end{$$lang}" : lyxrc.language_command_end;
|
|
bool const using_begin_end = runparams.use_polyglossia ||
|
|
!lang_end_command.empty();
|
|
|
|
if (maintext && !lyxrc.language_auto_begin &&
|
|
!mainlang.empty()) {
|
|
// FIXME UNICODE
|
|
string bc = runparams.use_polyglossia ?
|
|
getPolyglossiaBegin(lang_begin_command, mainlang,
|
|
bparams.language->polyglossiaOpts())
|
|
: subst(lang_begin_command, "$$lang", mainlang);
|
|
os << bc;
|
|
os << '\n';
|
|
if (using_begin_end)
|
|
pushLanguageName(mainlang);
|
|
}
|
|
|
|
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 = static_cast<int>(paragraphs.size());
|
|
}
|
|
|
|
pit_type pit = runparams.par_begin;
|
|
// lastpit is for the language check after the loop.
|
|
pit_type lastpit = pit;
|
|
DocumentClass const & tclass = bparams.documentClass();
|
|
|
|
// Did we already warn about inTitle layout mixing? (we only warn once)
|
|
bool gave_layout_warning = false;
|
|
for (; pit < runparams.par_end; ++pit) {
|
|
lastpit = pit;
|
|
ParagraphList::const_iterator par = paragraphs.iterator_at(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 (runparams.have_maketitle) {
|
|
if (!gave_layout_warning && !runparams.dryrun) {
|
|
gave_layout_warning = true;
|
|
frontend::Alert::warning(_("Error in latexParagraphs"),
|
|
bformat(_("You are using at least one "
|
|
"layout (%1$s) intended for the title, "
|
|
"after using non-title layouts. This "
|
|
"could lead to missing or incorrect output."
|
|
), layout.name()));
|
|
}
|
|
} else if (!runparams.need_maketitle) {
|
|
runparams.need_maketitle = true;
|
|
if (tclass.titletype() == TITLE_ENVIRONMENT) {
|
|
os << "\\begin{"
|
|
<< from_ascii(tclass.titlename())
|
|
<< "}\n";
|
|
}
|
|
}
|
|
} else if (runparams.need_maketitle && !runparams.have_maketitle
|
|
&& !layout.inpreamble && !text.inset().isInTitle()) {
|
|
if (tclass.titletype() == TITLE_ENVIRONMENT) {
|
|
os << "\\end{" << from_ascii(tclass.titlename())
|
|
<< "}\n";
|
|
}
|
|
else {
|
|
os << "\\" << from_ascii(tclass.titlename())
|
|
<< "\n";
|
|
}
|
|
runparams.have_maketitle = true;
|
|
runparams.need_maketitle = false;
|
|
}
|
|
|
|
if (layout.isCommand() && !layout.latexname().empty()
|
|
&& layout.latexname() == bparams.multibib) {
|
|
if (runparams.openbtUnit)
|
|
os << "\\end{btUnit}\n";
|
|
if (!bparams.useBiblatex()
|
|
&& !buf.masterBibInfo().empty()) {
|
|
os << '\n' << "\\begin{btUnit}\n";
|
|
runparams.openbtUnit = true;
|
|
}
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
// Do not output empty environments if the whole paragraph has
|
|
// been deleted with ct and changes are not output.
|
|
bool output_changes;
|
|
if (!runparams.find_effective())
|
|
output_changes = bparams.output_changes;
|
|
else
|
|
output_changes = runparams.find_with_deleted();
|
|
bool const lastpar = size_t(pit + 1) >= paragraphs.size();
|
|
if (!lastpar) {
|
|
ParagraphList::const_iterator nextpar = paragraphs.iterator_at(pit + 1);
|
|
Paragraph const & cpar = paragraphs.at(pit);
|
|
if ((par->layout() != nextpar->layout()
|
|
|| par->params().depth() == nextpar->params().depth()
|
|
|| par->params().leftIndent() == nextpar->params().leftIndent())
|
|
&& !cpar.empty()
|
|
&& cpar.isDeleted(0, cpar.size()) && !output_changes) {
|
|
if (!cpar.parEndChange().deleted())
|
|
os << '\n' << '\n';
|
|
continue;
|
|
}
|
|
} else {
|
|
// This is the last par
|
|
Paragraph const & cpar = paragraphs.at(pit);
|
|
if ( !cpar.empty()
|
|
&& cpar.isDeleted(0, cpar.size()) && !output_changes) {
|
|
if (!cpar.parEndChange().deleted())
|
|
os << '\n' << '\n';
|
|
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, maintext, lastpar);
|
|
}
|
|
|
|
// FIXME: uncomment the content or remove this block
|
|
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.
|
|
// But if we're in an inset, this is not the end of
|
|
// the document. (There may be some other checks of this
|
|
// kind that are needed.)
|
|
if (runparams.need_maketitle && !runparams.have_maketitle && maintext) {
|
|
if (tclass.titletype() == TITLE_ENVIRONMENT) {
|
|
os << "\\end{" << from_ascii(tclass.titlename())
|
|
<< "}\n";
|
|
} else {
|
|
os << "\\" << from_ascii(tclass.titlename())
|
|
<< "\n";
|
|
}
|
|
}
|
|
|
|
if (maintext && !is_child && runparams.openbtUnit)
|
|
os << "\\end{btUnit}\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
|
|
Language const * const lastpar_language =
|
|
paragraphs.at(lastpit).getParLanguage(bparams);
|
|
if (maintext && !lyxrc.language_auto_end && !mainlang.empty() &&
|
|
lastpar_language->encoding()->package() != Encoding::CJK) {
|
|
os << from_utf8(subst(lang_end_command,
|
|
"$$lang",
|
|
mainlang))
|
|
<< '\n';
|
|
// If we have language_auto_begin, the stack will
|
|
// already be empty, nothing to pop()
|
|
if (using_begin_end && langOpenedAtThisLevel(state))
|
|
popLanguageName();
|
|
}
|
|
|
|
// If the last paragraph is an environment, we'll have to close
|
|
// CJK at the very end to do proper nesting.
|
|
if (maintext && !is_child && state->open_encoding_ == CJK) {
|
|
os << "\\clearpage\n\\end{CJK}\n";
|
|
state->open_encoding_ = none;
|
|
}
|
|
// Likewise for polyglossia or when using begin/end commands
|
|
// or at the very end of an active branch inset with a language switch
|
|
Language const * const outer_language = (runparams.local_font != nullptr)
|
|
? runparams.local_font->language() : bparams.language;
|
|
string const & prev_lang = runparams.use_polyglossia
|
|
? getPolyglossiaEnvName(outer_language)
|
|
: outer_language->babel();
|
|
string const lastpar_lang = runparams.use_polyglossia ?
|
|
getPolyglossiaEnvName(lastpar_language): lastpar_language->babel();
|
|
string const & cur_lang = openLanguageName(state);
|
|
if (((runparams.inbranch && langOpenedAtThisLevel(state) && prev_lang != cur_lang)
|
|
|| (maintext && !is_child)) && !cur_lang.empty()) {
|
|
os << from_utf8(subst(lang_end_command,
|
|
"$$lang",
|
|
cur_lang))
|
|
<< '\n';
|
|
if (using_begin_end)
|
|
popLanguageName();
|
|
} else if (runparams.inbranch && !using_begin_end
|
|
&& prev_lang != lastpar_lang && !lastpar_lang.empty()) {
|
|
// with !using_begin_end, cur_lang is empty, so we need to
|
|
// compare against the paragraph language (and we are in the
|
|
// last paragraph at this point)
|
|
os << subst(lang_begin_command, "$$lang", prev_lang) << '\n';
|
|
}
|
|
|
|
// reset inherited encoding
|
|
if (state->cjk_inherited_ > 0) {
|
|
state->cjk_inherited_ -= 1;
|
|
if (state->cjk_inherited_ == 0)
|
|
state->open_encoding_ = CJK;
|
|
}
|
|
|
|
if (multibib_child && mparams.useBibtopic()) {
|
|
os << "\\end{btUnit}\n";
|
|
runparams.openbtUnit = false;
|
|
}
|
|
}
|
|
|
|
// Switch the input encoding for some part(s) of the document.
|
|
pair<bool, int> switchEncoding(odocstream & os, BufferParams const & bparams,
|
|
OutputParams const & runparams, Encoding const & newEnc,
|
|
bool force, bool noswitchmacro)
|
|
{
|
|
// Never switch encoding with XeTeX/LuaTeX
|
|
// or if we're in a moving argument or inherit the outer encoding.
|
|
if (runparams.isFullUnicode() || newEnc.name() == "inherit")
|
|
return make_pair(false, 0);
|
|
|
|
// Only switch for auto-selected legacy encodings (inputenc setting
|
|
// "auto-legacy" or "auto-legacy-plain").
|
|
// The "listings" environment can force a switch also with other
|
|
// encoding settings (it does not support variable width encodings
|
|
// (utf8, jis, ...) under 8-bit latex engines).
|
|
if (!force && ((bparams.inputenc != "auto-legacy" && bparams.inputenc != "auto-legacy-plain")
|
|
|| runparams.moving_arg))
|
|
return make_pair(false, 0);
|
|
|
|
Encoding const & oldEnc = *runparams.encoding;
|
|
// Do not switch, if the encoding is unchanged or switching is not supported.
|
|
if (oldEnc.name() == newEnc.name()
|
|
|| oldEnc.package() == Encoding::japanese
|
|
|| oldEnc.package() == Encoding::none
|
|
|| newEnc.package() == Encoding::none
|
|
|| runparams.find_effective())
|
|
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 may fail for characters not supported by "unicodesymbols"
|
|
// or for non-ASCII characters in "listings"
|
|
// but it is the best we can do.
|
|
|
|
// change encoding
|
|
LYXERR(Debug::OUTFILE, "Changing LaTeX encoding from "
|
|
<< oldEnc.name() << " to " << newEnc.name());
|
|
os << setEncoding(newEnc.iconvName());
|
|
if (bparams.inputenc == "auto-legacy-plain")
|
|
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) but avoids warning.
|
|
return make_pair(true, 0);
|
|
case Encoding::inputenc: {
|
|
size_t 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 != nullptr
|
|
&& 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;
|
|
}
|
|
if (noswitchmacro)
|
|
return make_pair(true, count);
|
|
os << "\\inputencoding{" << inputenc_arg << '}';
|
|
return make_pair(true, count + 16);
|
|
}
|
|
case Encoding::CJK: {
|
|
size_t 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}{"
|
|
<< from_ascii(newEnc.latexName()) << "}{"
|
|
<< 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
|