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188 lines
3.4 KiB
C++
188 lines
3.4 KiB
C++
/**
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* \file MathAutoCorrect.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 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 "MathAutoCorrect.h"
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#include "MathData.h"
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#include "InsetMath.h"
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#include "MathSupport.h"
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#include "MathParser.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" // LibFileSearch
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#include "support/docstream.h"
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#include <fstream>
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#include <sstream>
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using namespace std;
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namespace lyx {
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using support::libFileSearch;
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namespace {
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class Correction {
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public:
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///
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Correction() {}
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///
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bool correct(MathAtom & at, char_type c) const;
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///
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bool read(idocstream & is);
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///
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void write(odocstream & os) const;
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private:
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///
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MathAtom from1_;
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///
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char_type from2_;
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///
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MathAtom to_;
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};
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bool Correction::read(idocstream & is)
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{
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docstring s1, s2, s3;
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is >> s1 >> s2 >> s3;
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if (!is)
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return false;
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if (s2.size() != 1)
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return false;
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MathData ar1, ar3;
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mathed_parse_cell(ar1, s1);
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mathed_parse_cell(ar3, s3);
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if (ar1.size() != 1 || ar3.size() != 1)
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return false;
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from1_ = ar1.front();
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from2_ = s2[0];
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to_ = ar3.front();
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return true;
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}
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bool Correction::correct(MathAtom & at, char_type c) const
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{
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//LYXERR(Debug::MATHED,
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// "trying to correct ar: " << at << " from: '" << from1_ << '\'');
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if (from2_ != c)
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return false;
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if (asString(at) != asString(from1_))
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return false;
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LYXERR(Debug::MATHED, "match found! subst in " << at
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<< " from: '" << from1_ << "' to '" << to_ << '\'');
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at = to_;
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return true;
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}
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#if 0
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void Correction::write(odocstream & os) const
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{
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os << "from: '" << from1_ << "' and '" << from2_
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<< "' to '" << to_ << '\'' << endl;
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}
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idocstream & operator>>(idocstream & is, Correction & corr)
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{
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corr.read(is);
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return is;
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}
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odocstream & operator<<(odocstream & os, Correction & corr)
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{
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corr.write(os);
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return os;
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}
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#endif
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class Corrections {
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public:
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///
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typedef vector<Correction>::const_iterator const_iterator;
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///
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Corrections() {}
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///
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void insert(const Correction & corr) { data_.push_back(corr); }
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///
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bool correct(MathAtom & at, char_type c) const;
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private:
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///
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vector<Correction> data_;
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};
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bool Corrections::correct(MathAtom & at, char_type c) const
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{
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for (const_iterator it = data_.begin(); it != data_.end(); ++it)
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if (it->correct(at, c))
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return true;
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return false;
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}
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Corrections theCorrections;
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void initAutoCorrect()
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{
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LYXERR(Debug::MATHED, "reading autocorrect file");
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support::FileName const file = libFileSearch(string(), "autocorrect");
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if (file.empty()) {
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lyxerr << "Could not find autocorrect file" << endl;
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return;
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}
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string line;
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ifstream is(file.toFilesystemEncoding().c_str());
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while (getline(is, line)) {
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if (line.empty() || line[0] == '#') {
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//LYXERR(Debug::MATHED, "ignoring line '" << line << '\'');
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continue;
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}
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idocstringstream il(from_utf8(line));
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//LYXERR(Debug::MATHED, "line '" << line << '\'');
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Correction corr;
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if (corr.read(il)) {
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//LYXERR(Debug::MATHED, "parsed: '" << corr << '\'');
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theCorrections.insert(corr);
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}
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}
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LYXERR(Debug::MATHED, "done reading autocorrections.");
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}
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} // namespace anon
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bool math_autocorrect(MathAtom & at, char_type c)
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{
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static bool initialized = false;
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if (!initialized) {
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initAutoCorrect();
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initialized = true;
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}
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return theCorrections.correct(at, c);
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}
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} // namespace lyx
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