mirror of
https://git.lyx.org/repos/lyx.git
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670efa8f64
Modifying TexRow.h or texstream.h no longer triggers the recompilation of the complete source tree.
550 lines
13 KiB
C++
550 lines
13 KiB
C++
/**
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* \file LaTeXFonts.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 Jürgen Spitzmüller
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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 "LaTeXFonts.h"
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#include "LaTeXFeatures.h"
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#include "Lexer.h"
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#include "frontends/alert.h"
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#include "support/convert.h"
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#include "support/debug.h"
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#include "support/docstream.h"
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#include "support/FileName.h"
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#include "support/filetools.h"
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#include "support/gettext.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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LaTeXFonts latexfonts;
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LaTeXFont LaTeXFont::altFont(docstring const & name)
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{
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return theLaTeXFonts().getAltFont(name);
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}
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bool LaTeXFont::available(bool ot1, bool nomath)
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{
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if (nomath && !nomathfont_.empty())
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return altFont(nomathfont_).available(ot1, nomath);
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else if (ot1 && !ot1font_.empty())
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return (ot1font_ == "none") ?
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true : altFont(ot1font_).available(ot1, nomath);
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else if (requires_.empty() && package_.empty())
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return true;
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else if (!requires_.empty()
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&& LaTeXFeatures::isAvailable(to_ascii(requires_)))
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return true;
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else if (requires_.empty() && !package_.empty()
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&& LaTeXFeatures::isAvailable(to_ascii(package_)))
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return true;
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else if (!altfonts_.empty()) {
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for (size_t i = 0; i < altfonts_.size(); ++i) {
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if (altFont(altfonts_[i]).available(ot1, nomath))
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return true;
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}
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}
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return false;
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}
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bool LaTeXFont::providesNoMath(bool ot1, bool complete)
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{
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docstring const usedfont = getUsedFont(ot1, complete, false);
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if (usedfont.empty())
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return false;
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else if (usedfont != name_)
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return altFont(usedfont).providesNoMath(ot1, complete);
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return (!nomathfont_.empty() && available(ot1, true));
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}
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bool LaTeXFont::providesOSF(bool ot1, bool complete, bool nomath)
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{
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docstring const usedfont = getUsedFont(ot1, complete, nomath);
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if (usedfont.empty())
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return false;
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else if (usedfont != name_)
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return altFont(usedfont).providesOSF(ot1, complete, nomath);
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else if (!osffont_.empty())
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return altFont(osffont_).available(ot1, nomath);
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else if (!available(ot1, nomath))
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return false;
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return (!osfoption_.empty() || !osfscoption_.empty());
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}
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bool LaTeXFont::providesSC(bool ot1, bool complete, bool nomath)
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{
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docstring const usedfont = getUsedFont(ot1, complete, nomath);
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if (usedfont.empty())
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return false;
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else if (usedfont != name_)
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return altFont(usedfont).providesSC(ot1, complete, nomath);
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else if (!available(ot1, nomath))
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return false;
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return (!scoption_.empty() || !osfscoption_.empty());
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}
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bool LaTeXFont::hasMonolithicExpertSet(bool ot1, bool complete, bool nomath)
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{
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docstring const usedfont = getUsedFont(ot1, complete, nomath);
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if (usedfont.empty())
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return false;
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else if (usedfont != name_)
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return altFont(usedfont).hasMonolithicExpertSet(ot1, complete, nomath);
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return (!osfoption_.empty() && !scoption_.empty() && osfoption_ == scoption_)
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|| (osfoption_.empty() && scoption_.empty() && !osfscoption_.empty());
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}
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bool LaTeXFont::providesScale(bool ot1, bool complete, bool nomath)
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{
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docstring const usedfont = getUsedFont(ot1, complete, nomath);
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if (usedfont.empty())
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return false;
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else if (usedfont != name_)
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return altFont(usedfont).providesScale(ot1, complete, nomath);
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else if (!available(ot1, nomath))
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return false;
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return (!scaleoption_.empty());
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}
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bool LaTeXFont::provides(std::string const & name, bool ot1, bool complete, bool nomath)
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{
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docstring const usedfont = getUsedFont(ot1, complete, nomath);
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if (usedfont.empty())
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return false;
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else if (usedfont != name_)
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return altFont(usedfont).provides(name, ot1, complete, nomath);
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else if (provides_.empty())
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return false;
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for (size_t i = 0; i < provides_.size(); ++i) {
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if (provides_[i] == name)
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return true;
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}
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return false;
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}
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docstring const LaTeXFont::getUsedFont(bool ot1, bool complete, bool nomath)
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{
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if (nomath && !nomathfont_.empty() && available(ot1, true))
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return nomathfont_;
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else if (ot1 && !ot1font_.empty())
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return (ot1font_ == "none") ? docstring() : ot1font_;
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else if (family_ == "rm" && complete && !completefont_.empty()
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&& altFont(completefont_).available(ot1, nomath))
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return completefont_;
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else if (switchdefault_) {
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if (requires_.empty()
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|| (!requires_.empty()
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&& LaTeXFeatures::isAvailable(to_ascii(requires_))))
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return name_;
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}
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else if (!requires_.empty()
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&& LaTeXFeatures::isAvailable(to_ascii(requires_)))
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return name_;
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else if (!package_.empty()
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&& LaTeXFeatures::isAvailable(to_ascii(package_)))
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return name_;
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else if (!preamble_.empty() && package_.empty()
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&& requires_.empty() && !switchdefault_
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&& altfonts_.empty()) {
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return name_;
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}
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else if (!altfonts_.empty()) {
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for (size_t i = 0; i < altfonts_.size(); ++i) {
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LaTeXFont altf = altFont(altfonts_[i]);
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if (altf.available(ot1, nomath))
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return altf.getUsedFont(ot1, complete, nomath);
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}
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}
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return docstring();
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}
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docstring const LaTeXFont::getUsedPackage(bool ot1, bool complete, bool nomath)
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{
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docstring const usedfont = getUsedFont(ot1, complete, nomath);
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if (usedfont.empty())
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return docstring();
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return theLaTeXFonts().getLaTeXFont(usedfont).package();
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}
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string const LaTeXFont::getAvailablePackage(bool dryrun)
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{
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if (package_.empty())
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return string();
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string const package = to_ascii(package_);
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if (!requires_.empty() && LaTeXFeatures::isAvailable(to_ascii(requires_)))
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return package;
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else if (LaTeXFeatures::isAvailable(package))
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return package;
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// Output unavailable packages in source preview
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else if (dryrun)
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return package;
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docstring const req = requires_.empty() ? package_ : requires_;
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frontend::Alert::warning(_("Font not available"),
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bformat(_("The LaTeX package `%1$s' needed for the font `%2$s'\n"
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"is not available on your system. LyX will fall back to the default font."),
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req, guiname_), true);
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return string();
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}
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string const LaTeXFont::getPackageOptions(bool ot1, bool complete, bool sc, bool osf,
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int scale, bool nomath)
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{
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ostringstream os;
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bool const needosfopt = (osf != osfdefault_);
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bool const has_osf = providesOSF(ot1, complete, nomath);
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bool const has_sc = providesSC(ot1, complete, nomath);
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if (!packageoption_.empty())
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os << to_ascii(packageoption_);
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if (sc && needosfopt && has_osf && has_sc) {
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if (!os.str().empty())
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os << ',';
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if (!osfscoption_.empty())
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os << to_ascii(osfscoption_);
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else
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os << to_ascii(osfoption_)
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<< ',' << to_ascii(scoption_);
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} else if (needosfopt && has_osf) {
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if (!os.str().empty())
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os << ',';
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os << to_ascii(osfoption_);
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} else if (sc && has_sc) {
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if (!os.str().empty())
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os << ',';
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os << to_ascii(scoption_);
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}
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if (scale != 100 && !scaleoption_.empty()
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&& providesScale(ot1, complete, nomath)) {
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if (!os.str().empty())
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os << ',';
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os << subst(to_ascii(scaleoption_), "$$val",
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convert<std::string>(float(scale) / 100));
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}
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return os.str();
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}
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string const LaTeXFont::getLaTeXCode(bool dryrun, bool ot1, bool complete, bool sc,
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bool osf, bool nomath, int const & scale)
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{
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ostringstream os;
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docstring const usedfont = getUsedFont(ot1, complete, nomath);
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if (usedfont.empty())
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return string();
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else if (usedfont != name_)
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return altFont(usedfont).getLaTeXCode(dryrun, ot1, complete, sc, osf, nomath, scale);
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if (switchdefault_) {
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if (family_.empty()) {
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LYXERR0("Error: Font `" << name_ << "' has no family defined!");
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return string();
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}
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if (available(ot1, nomath) || dryrun)
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os << "\\renewcommand{\\" << to_ascii(family_) << "default}{"
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<< to_ascii(name_) << "}\n";
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else
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frontend::Alert::warning(_("Font not available"),
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bformat(_("The LaTeX package `%1$s' needed for the font `%2$s'\n"
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"is not available on your system. LyX will fall back to the default font."),
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requires_, guiname_), true);
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} else {
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string const package =
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getAvailablePackage(dryrun);
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string const packageopts = getPackageOptions(ot1, complete, sc, osf, scale, nomath);
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if (packageopts.empty() && !package.empty())
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os << "\\usepackage{" << package << "}\n";
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else if (!packageopts.empty() && !package.empty())
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os << "\\usepackage[" << packageopts << "]{" << package << "}\n";
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}
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if (osf && providesOSF(ot1, complete, nomath) && !osffont_.empty())
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os << altFont(osffont_).getLaTeXCode(dryrun, ot1, complete, sc, osf, nomath, scale);
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if (!preamble_.empty())
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os << preamble_;
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return os.str();
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}
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bool LaTeXFont::readFont(Lexer & lex)
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{
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enum LaTeXFontTags {
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LF_ALT_FONTS = 1,
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LF_COMPLETE_FONT,
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LF_END,
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LF_FAMILY,
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LF_GUINAME,
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LF_NOMATHFONT,
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LF_OSFDEFAULT,
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LF_OSFFONT,
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LF_OSFOPTION,
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LF_OSFSCOPTION,
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LF_OT1_FONT,
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LF_PACKAGE,
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LF_PACKAGEOPTION,
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LF_PREAMBLE,
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LF_PROVIDES,
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LF_REQUIRES,
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LF_SCALEOPTION,
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LF_SCOPTION,
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LF_SWITCHDEFAULT
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};
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// Keep these sorted alphabetically!
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LexerKeyword latexFontTags[] = {
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{ "altfonts", LF_ALT_FONTS },
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{ "completefont", LF_COMPLETE_FONT },
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{ "endfont", LF_END },
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{ "family", LF_FAMILY },
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{ "guiname", LF_GUINAME },
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{ "nomathfont", LF_NOMATHFONT },
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{ "osfdefault", LF_OSFDEFAULT },
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{ "osffont", LF_OSFFONT },
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{ "osfoption", LF_OSFOPTION },
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{ "osfscoption", LF_OSFSCOPTION },
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{ "ot1font", LF_OT1_FONT },
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{ "package", LF_PACKAGE },
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{ "packageoption", LF_PACKAGEOPTION },
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{ "preamble", LF_PREAMBLE },
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{ "provides", LF_PROVIDES },
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{ "requires", LF_REQUIRES },
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{ "scaleoption", LF_SCALEOPTION },
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{ "scoption", LF_SCOPTION },
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{ "switchdefault", LF_SWITCHDEFAULT }
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};
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bool error = false;
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bool finished = false;
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lex.pushTable(latexFontTags);
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// parse style section
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while (!finished && lex.isOK() && !error) {
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int le = lex.lex();
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// See comment in LyXRC.cpp.
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switch (le) {
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case Lexer::LEX_FEOF:
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continue;
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case Lexer::LEX_UNDEF: // parse error
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lex.printError("Unknown LaTeXFont tag `$$Token'");
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error = true;
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continue;
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default:
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break;
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}
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switch (static_cast<LaTeXFontTags>(le)) {
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case LF_END: // end of structure
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finished = true;
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break;
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case LF_ALT_FONTS: {
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lex.eatLine();
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docstring altp = lex.getDocString();
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altfonts_ = getVectorFromString(altp);
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break;
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}
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case LF_COMPLETE_FONT:
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lex >> completefont_;
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break;
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case LF_FAMILY:
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lex >> family_;
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break;
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case LF_GUINAME:
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lex >> guiname_;
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break;
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case LF_NOMATHFONT:
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lex >> nomathfont_;
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break;
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case LF_OSFOPTION:
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lex >> osfoption_;
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break;
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case LF_OSFFONT:
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lex >> osffont_;
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break;
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case LF_OSFDEFAULT:
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lex >> osfdefault_;
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break;
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case LF_OSFSCOPTION:
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lex >> osfscoption_;
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break;
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case LF_OT1_FONT:
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lex >> ot1font_;
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break;
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case LF_PACKAGE:
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lex >> package_;
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break;
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case LF_PACKAGEOPTION:
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lex >> packageoption_;
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break;
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case LF_PREAMBLE:
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preamble_ = lex.getLongString("EndPreamble");
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break;
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case LF_PROVIDES: {
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lex.eatLine();
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string features = lex.getString();
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provides_ = getVectorFromString(features);
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break;
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}
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case LF_REQUIRES:
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lex >> requires_;
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break;
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case LF_SCALEOPTION:
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lex >> scaleoption_;
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break;
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case LF_SCOPTION:
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lex >> scoption_;
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break;
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case LF_SWITCHDEFAULT:
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lex >> switchdefault_;
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break;
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}
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}
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if (!finished) {
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lex.printError("No End tag found for LaTeXFont tag `$$Token'");
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return false;
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}
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lex.popTable();
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return finished && !error;
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}
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bool LaTeXFont::read(Lexer & lex)
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{
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switchdefault_ = 0;
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osfdefault_ = 0;
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if (!lex.next()) {
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lex.printError("No name given for LaTeX font: `$$Token'.");
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return false;
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}
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name_ = lex.getDocString();
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LYXERR(Debug::INFO, "Reading LaTeX font " << name_);
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if (!readFont(lex)) {
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LYXERR0("Error parsing LaTeX font `" << name_ << '\'');
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return false;
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}
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return true;
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}
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void LaTeXFonts::readLaTeXFonts()
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{
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// Read latexfonts file
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FileName filename = libFileSearch(string(), "latexfonts");
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if (filename.empty()) {
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LYXERR0("Error: latexfonts file not found!");
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return;
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}
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Lexer lex;
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lex.setFile(filename);
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lex.setContext("LaTeXFeatures::readLaTeXFonts");
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while (lex.isOK()) {
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int le = lex.lex();
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switch (le) {
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case Lexer::LEX_FEOF:
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continue;
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default:
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break;
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}
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string const type = lex.getString();
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if (type != "Font" && type != "AltFont") {
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lex.printError("Unknown LaTeXFont tag `$$Token'");
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continue;
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}
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LaTeXFont f;
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f.read(lex);
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if (!lex)
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break;
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if (type == "AltFont")
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texaltfontmap_[f.name()] = f;
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else
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texfontmap_[f.name()] = f;
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}
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}
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LaTeXFonts::TexFontMap LaTeXFonts::getLaTeXFonts()
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{
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if (texfontmap_.empty())
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readLaTeXFonts();
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return texfontmap_;
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}
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LaTeXFont LaTeXFonts::getLaTeXFont(docstring const & name)
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{
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if (name == "default" || name == "auto")
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return LaTeXFont();
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if (texfontmap_.empty())
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readLaTeXFonts();
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if (texfontmap_.find(name) == texfontmap_.end()) {
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LYXERR0("LaTeXFonts::getLaTeXFont: font '" << name << "' not found!");
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return LaTeXFont();
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}
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return texfontmap_[name];
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}
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LaTeXFont LaTeXFonts::getAltFont(docstring const & name)
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{
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if (name == "default" || name == "auto")
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return LaTeXFont();
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if (texaltfontmap_.empty())
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readLaTeXFonts();
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if (texaltfontmap_.find(name) == texaltfontmap_.end()) {
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LYXERR0("LaTeXFonts::getAltFont: alternative font '" << name << "' not found!");
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return LaTeXFont();
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}
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return texaltfontmap_[name];
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}
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} // namespace lyx
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