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110 lines
3.0 KiB
C++
110 lines
3.0 KiB
C++
/**
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* \file BufferEncodings.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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* \author Jean-Marc Lasgouttes
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* \author Dekel Tsur
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* \author Stephan Witt
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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 "BufferEncodings.h"
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#include "Buffer.h"
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#include "InsetIterator.h"
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#include "LaTeXFeatures.h"
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#include "support/lstrings.h"
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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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void BufferEncodings::initUnicodeMath(Buffer const & buffer, bool for_master)
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{
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if (for_master) {
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mathcmd.clear();
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textcmd.clear();
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mathsym.clear();
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}
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// Check this buffer
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Inset & inset = buffer.inset();
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InsetIterator it = inset_iterator_begin(inset);
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InsetIterator const end = inset_iterator_end(inset);
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for (; it != end; ++it)
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it->initUnicodeMath();
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if (!for_master)
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return;
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// Check children
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ListOfBuffers blist = buffer.getDescendents();
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ListOfBuffers::const_iterator bit = blist.begin();
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ListOfBuffers::const_iterator const bend = blist.end();
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for (; bit != bend; ++bit)
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initUnicodeMath(**bit, false);
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}
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void BufferEncodings::validate(char_type c, LaTeXFeatures & features, bool for_mathed)
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{
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CharInfo const & ci = Encodings::unicodeCharInfo(c);
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if (ci.isUnicodeSymbol()) {
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// In mathed, c could be used both in textmode and mathmode
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docstring const textcommand = ci.textcommand();
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bool const math_mode = for_mathed && isMathCmd(c);
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bool const use_math = math_mode ||
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(!for_mathed && textcommand.empty());
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bool const use_text = (for_mathed && isTextCmd(c)) ||
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(!for_mathed && !textcommand.empty());
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bool const plain_utf8 = (features.runparams().encoding->name() == "utf8-plain");
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bool const unicode_math = (features.isRequired("unicode-math")
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&& features.isAvailable("unicode-math"));
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// with utf8-plain, we only load packages when in mathed (see #7766)
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// and if we do not use unicode-math
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if ((math_mode && !unicode_math)
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|| (use_math && !plain_utf8)) {
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string const mathpreamble = ci.mathpreamble();
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if (!mathpreamble.empty()) {
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if (ci.mathfeature()) {
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string feats = mathpreamble;
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while (!feats.empty()) {
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string feat;
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feats = split(feats, feat, ',');
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features.require(feat);
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}
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} else
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features.addPreambleSnippet(from_utf8(mathpreamble));
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}
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}
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// with utf8-plain, we do not load packages (see #7766)
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if (use_text && !plain_utf8) {
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string const textpreamble = ci.textpreamble();
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if (!textpreamble.empty()) {
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if (ci.textfeature()) {
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string feats = textpreamble;
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while (!feats.empty()) {
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string feat;
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feats = split(feats, feat, ',');
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features.require(feat);
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}
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} else
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features.addPreambleSnippet(from_utf8(textpreamble));
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}
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}
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}
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if (for_mathed && isMathSym(c)) {
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features.require("amstext");
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features.require("lyxmathsym");
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}
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}
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} // namespace lyx
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