mirror of
https://git.lyx.org/repos/lyx.git
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122 lines
2.5 KiB
C++
122 lines
2.5 KiB
C++
/**
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* \file LaTeXPackages.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 José Matos
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* \author Lars Gullik Bjønnes
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* \author Jean-Marc Lasgouttes
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* \author Jürgen Vigna
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* \author André Pönitz
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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 "LaTeXPackages.h"
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#include "Lexer.h"
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#include "support/convert.h"
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#include "support/debug.h"
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#include "support/FileName.h"
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#include "support/filetools.h"
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#include "support/lstrings.h"
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#include "support/Package.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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LaTeXPackages::Packages LaTeXPackages::packages_;
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void LaTeXPackages::getAvailable()
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{
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Lexer lex;
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support::FileName const real_file = libFileSearch("", "packages.lst");
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if (real_file.empty())
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return;
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lex.setFile(real_file);
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if (!lex.isOK())
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return;
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// Make sure that we are clean
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packages_.clear();
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bool finished = false;
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string lstformat = "1";
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// Parse config-file
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while (lex.isOK() && !finished) {
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switch (lex.lex()) {
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case Lexer::LEX_FEOF:
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finished = true;
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break;
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default: {
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string const p = lex.getString();
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// Parse optional version info
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lex.eatLine();
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string const v = trim(lex.getString());
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if (p == "!!fileformat") {
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lstformat = v;
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continue;
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}
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packages_.insert(make_pair(p, v));
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}
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}
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}
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// Check if the pkglist has current format.
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// Reconfigure and re-parse if not.
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if (lstformat != "2") {
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package().reconfigureUserLyXDir("");
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getAvailable();
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}
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}
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bool LaTeXPackages::isAvailable(string const & name)
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{
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if (packages_.empty())
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getAvailable();
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string n = name;
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if (suffixIs(n, ".sty"))
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n.erase(name.length() - 4);
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for (auto const & package : packages_) {
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if (package.first == n)
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return true;
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}
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return false;
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}
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bool LaTeXPackages::isAvailableAtLeastFrom(string const & name,
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int const y, int const m, int const d)
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{
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if (packages_.empty())
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getAvailable();
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// required date as int (yyyymmdd)
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int const req_date = (y * 10000) + (m * 100) + d;
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for (auto const & package : packages_) {
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if (package.first == name && !package.second.empty()) {
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if (!isStrInt(package.second)) {
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LYXERR0("Warning: Invalid date of package "
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<< package.first << " (" << package.second << ")");
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continue;
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}
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// required date not newer than available date
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return req_date <= convert<int>(package.second);
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}
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}
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return false;
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}
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} // namespace lyx
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