mirror of
https://git.lyx.org/repos/lyx.git
synced 2024-12-31 15:46:16 +00:00
FindAdv: Try to make regex search with format enabled somehow faster
This commit is contained in:
Kornel Benko
parent
eaebe404ae
commit
f500a287d4
155
src/lyxfind.cpp
155
src/lyxfind.cpp
@ -51,9 +51,17 @@
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#include <map>
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#include <regex>
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#include <QtCore> // sets QT_VERSION
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#if (QT_VERSION >= 0x050000)
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#include <QRegularExpression>
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#define USE_QT_FOR_SEARCH
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#if defined(USE_QT_FOR_SEARCH)
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#include <QtCore> // sets QT_VERSION
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#if (QT_VERSION >= 0x050000)
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#include <QRegularExpression>
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#define QTSEARCH 1
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#else
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#define QTSEARCH 0
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#endif
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#else
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#define QTSEARCH 0
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#endif
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using namespace std;
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@ -797,7 +805,7 @@ bool regex_replace(string const & s, string & t, string const & searchstr,
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** @param unmatched
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** Number of open braces that must remain open at the end for the verification to succeed.
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**/
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#if (QT_VERSION >= 0x050000)
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#if QTSEARCH
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bool braces_match(QString const & beg,
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int unmatched = 0)
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#else
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@ -806,7 +814,7 @@ bool braces_match(string const & beg,
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#endif
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{
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int open_pars = 0;
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#if (QT_VERSION >= 0x050000)
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#if QTSEARCH
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LYXERR(Debug::FIND, "Checking " << unmatched << " unmatched braces in '" << beg.toStdString() << "'");
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#else
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LYXERR(Debug::FIND, "Checking " << unmatched << " unmatched braces in '" << beg << "'");
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@ -814,7 +822,7 @@ bool braces_match(string const & beg,
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int lastidx = beg.size();
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for (int i=0; i < lastidx; ++i) {
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// Skip escaped braces in the count
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#if (QT_VERSION >= 0x050000)
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#if QTSEARCH
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QChar c = beg.at(i);
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#else
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char c = beg.at(i);
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@ -847,9 +855,11 @@ bool braces_match(string const & beg,
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class MatchResult {
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public:
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int match_len;
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int match_prefix;
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int match2end;
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int pos;
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MatchResult(): match_len(0),match2end(0), pos(0) {};
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int leadsize;
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MatchResult(): match_len(0),match_prefix(0),match2end(0), pos(0),leadsize(0) {};
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};
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/** The class performing a match between a position in the document and the FindAdvOptions.
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@ -870,7 +880,7 @@ public:
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** The length of the matching text, or zero if no match was found.
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**/
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MatchResult operator()(DocIterator const & cur, int len = -1, bool at_begin = true) const;
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#if (QT_VERSION >= 0x050000)
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#if QTSEARCH
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bool regexIsValid;
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string regexError;
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#endif
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@ -905,7 +915,7 @@ private:
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string par_as_string;
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// regular expression to use for searching
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// regexp2 is same as regexp, but prefixed with a ".*?"
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#if (QT_VERSION >= 0x050000)
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#if QTSEARCH
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QRegularExpression regexp;
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QRegularExpression regexp2;
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#else
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@ -2372,6 +2382,7 @@ int LatexInfo::dispatch(ostringstream &os, int previousStart, KeyInfo &actual)
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}
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case KeyInfo::isText:
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interval_.addIntervall(actual._tokenstart, actual._tokenstart+1);
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nextKeyIdx = getNextKey();
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break;
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case KeyInfo::noContent: { /* char like "\hspace{2cm}" */
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if (actual.disabled)
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@ -2952,17 +2963,17 @@ MatchStringAdv::MatchStringAdv(lyx::Buffer & buf, FindAndReplaceOptions const &
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// TODO: Adapt '\[12345678]' in par_as_string to acount for the first '()
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// Unfortunately is '\1', '\2', etc not working for strings with extra format
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// so the convert has no effect in that case
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for (int i = 8; i > 0; --i) {
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for (int i = 7; i > 0; --i) {
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string orig = "\\\\" + std::to_string(i);
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string dest = "\\" + std::to_string(i+1);
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string dest = "\\" + std::to_string(i+2);
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while (regex_replace(par_as_string, par_as_string, orig, dest));
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}
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regexp_str = "(" + lead_as_regexp + ")" + par_as_string;
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regexp2_str = "(" + lead_as_regexp + ").*?" + par_as_string;
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regexp_str = "(" + lead_as_regexp + ")()" + par_as_string;
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regexp2_str = "(" + lead_as_regexp + ")(.*?)" + par_as_string;
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}
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LYXERR(Debug::FIND, "Setting regexp to : '" << regexp_str << "'");
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LYXERR(Debug::FIND, "Setting regexp2 to: '" << regexp2_str << "'");
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#if (QT_VERSION >= 0x050000)
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#if QTSEARCH
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// Handle \w properly
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QRegularExpression::PatternOptions popts = QRegularExpression::UseUnicodePropertiesOption | QRegularExpression::MultilineOption;
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if (! opt.casesensitive) {
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@ -3022,7 +3033,7 @@ MatchStringAdv::MatchStringAdv(lyx::Buffer & buf, FindAndReplaceOptions const &
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// \& ==> 1
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// --- ==> 1
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// \\[a-zA-Z]+ ==> 1
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#if (QT_VERSION >= 0x050000)
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#if QTSEARCH
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static int computeSize(QStringRef s, int len)
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#define isLyxAlpha(arg) arg.isLetter()
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#else
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@ -3103,7 +3114,7 @@ MatchResult MatchStringAdv::findAux(DocIterator const & cur, int len, bool at_be
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if (use_regexp) {
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LYXERR(Debug::FIND, "Searching in regexp mode: at_begin=" << at_begin);
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#if (QT_VERSION >= 0x050000)
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#if QTSEARCH
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QString qstr = QString::fromStdString(str);
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QRegularExpression const *p_regexp;
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QRegularExpression::MatchType flags = QRegularExpression::NormalMatch;
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@ -3117,7 +3128,7 @@ MatchResult MatchStringAdv::findAux(DocIterator const & cur, int len, bool at_be
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return mres;
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// Check braces on segments that matched all (.*?) subexpressions,
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// except the last "padding" one inserted by lyx.
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for (int i = 1; i < match.lastCapturedIndex(); ++i)
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for (int i = 3; i < match.lastCapturedIndex(); ++i)
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if (!braces_match(match.captured(i), open_braces))
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return mres;
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#else
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@ -3136,7 +3147,7 @@ MatchResult MatchStringAdv::findAux(DocIterator const & cur, int len, bool at_be
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match_results<string::const_iterator> const & m = *re_it;
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// Check braces on segments that matched all (.*?) subexpressions,
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// except the last "padding" one inserted by lyx.
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for (size_t i = 1; i < m.size() - 1; ++i)
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for (size_t i = 3; i < m.size() - 1; ++i)
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if (!braces_match(m[i], open_braces))
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return mres;
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#endif
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@ -3149,10 +3160,10 @@ MatchResult MatchStringAdv::findAux(DocIterator const & cur, int len, bool at_be
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int leadingsize = 0;
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int result;
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size_t pos;
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#if (QT_VERSION >= 0x050000)
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if (match.lastCapturedIndex() > 0)
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#if QTSEARCH
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if (match.lastCapturedIndex() > 0) {
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leadingsize = match.capturedEnd(1) - match.capturedStart(1);
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}
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int lastidx = match.lastCapturedIndex();
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for (int i = 0; i <= lastidx; i++) {
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LYXERR(Debug::FIND, "Match " << i << " is " << match.capturedEnd(i) - match.capturedStart(i) << " long");
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@ -3162,17 +3173,11 @@ MatchResult MatchStringAdv::findAux(DocIterator const & cur, int len, bool at_be
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else
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result = match.capturedStart(lastidx + 1 - close_wildcards) - match.capturedStart(0);
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pos = match.capturedStart(0);
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// Ignore last closing characters
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while (result > 0) {
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if (qstr.at(pos+result-1) == '}')
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--result;
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else
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break;
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}
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pos = match.capturedStart(1);
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#else
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if (m.size() > 1)
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if (m.size() > 2) {
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leadingsize = m[1].second - m[1].first;
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}
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for (size_t i = 0; i < m.size(); i++) {
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LYXERR(Debug::FIND, "Match " << i << " is " << m[i].second - m[i].first << " long");
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}
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@ -3180,27 +3185,23 @@ MatchResult MatchStringAdv::findAux(DocIterator const & cur, int len, bool at_be
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result = m[0].second - m[0].first;
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else
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result = m[m.size() - close_wildcards].first - m[0].first;
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pos = m.position(size_t(0));
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// Ignore last closing characters
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while (result > 0) {
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if (str[pos+result-1] == '}')
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--result;
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else
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break;
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}
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pos = m.position(size_t(1));
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#endif
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if (result > leadingsize)
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result -= leadingsize;
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else
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result = 0;
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#if (QT_VERSION >= 0x050000)
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mres.match_len = computeSize(QStringRef(&qstr, pos+leadingsize,result), result);
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mres.match2end = qstr.size() - pos - leadingsize;
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#if QTSEARCH
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mres.match_prefix = match.capturedEnd(2) - match.capturedStart(2);
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mres.match_len = computeSize(QStringRef(&qstr, pos+leadingsize,result), result) - mres.match_prefix;
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mres.match2end = qstr.size() - pos - leadingsize - mres.match_prefix;
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#else
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mres.match_len = computeSize(str.substr(pos+leadingsize,result), result);
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mres.match2end = str.size() - pos - leadingsize;
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mres.match_prefix = = m[2].second - m[2].first;
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mres.match_len = computeSize(str.substr(pos+leadingsize,result), result) - mres.match_prefix;
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mres.match2end = str.size() - pos - leadingsize - mres.match_prefix;
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#endif
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mres.pos = pos+leadingsize;
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mres.pos = pos+leadingsize + mres.match_prefix;
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mres.leadsize = leadingsize;
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return mres;
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}
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@ -3558,6 +3559,20 @@ int findAdvFinalize(DocIterator & cur, MatchStringAdv const & match)
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}
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#if 0
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static void displayMResult(MatchResult &mres)
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{
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LYXERR0( "pos: " << mres.pos);
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LYXERR0( "leadsize: " << mres.leadsize);
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LYXERR0( "match_len: " << mres.match_len);
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LYXERR0( "match_prefix: " << mres.match_prefix);
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LYXERR0( "match2end: " << mres.match2end);
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}
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#define displayMres(s) displayMResult(s);
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#else
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#define displayMres(s)
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#endif
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/// Finds forward
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int findForwardAdv(DocIterator & cur, MatchStringAdv const & match)
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{
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@ -3566,16 +3581,18 @@ int findForwardAdv(DocIterator & cur, MatchStringAdv const & match)
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while (!theApp()->longOperationCancelled() && cur) {
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LYXERR(Debug::FIND, "findForwardAdv() cur: " << cur);
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MatchResult mres = match(cur, -1, false);
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displayMres(mres)
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int match_len = mres.match_len;
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LYXERR(Debug::FIND, "match_len: " << match_len);
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if ((mres.pos > 100000) || (mres.match2end > 100000) || (match_len > 100000)) {
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LYXERR(Debug::INFO, "BIG LENGTHS: " << mres.pos << ", " << match_len << ", " << mres.match2end);
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match_len = 0;
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}
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if (match_len > 0) {
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// Try to find the begin of searched string
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int increment = mres.pos/2;
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while (mres.pos > 5 && (increment > 5)) {
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int increment;
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increment = mres.match_prefix/2;
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LYXERR(Debug::FIND, "Set increment to " << increment);
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while (mres.match_prefix > 1 && (increment > 1)) {
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DocIterator old_cur = cur;
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for (int i = 0; i < increment && cur; cur.forwardPos(), i++) {
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}
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@ -3587,23 +3604,32 @@ int findForwardAdv(DocIterator & cur, MatchStringAdv const & match)
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}
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else {
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MatchResult mres2 = match(cur, -1, false);
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displayMres(mres2)
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if ((mres2.match2end < mres.match2end) ||
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(mres2.match_len < mres.match_len)) {
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cur = old_cur;
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increment /= 2;
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}
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else {
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else if ((mres2.match2end == mres.match2end) && (mres2.match_len == mres.match_len)) {
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// next part with the same increment as before
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mres = mres2;
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increment -= 2;
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if (increment > mres.pos/2)
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increment = mres.pos/2;
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if (increment > mres.match_prefix/2)
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increment = mres.match_prefix/2;
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}
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else {
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// Something wrong here
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LYXERR0( "Increment = " << increment << " match_prefix = " << mres.match_prefix);
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break;
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}
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}
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}
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int match_len_zero_count = 0;
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MatchResult mres3;
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for (int i = 0; !theApp()->longOperationCancelled() && cur; cur.forwardPos()) {
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if (i++ > 10) {
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int remaining_len = match(cur, -1, false).match_len;
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if (i++ > 3) {
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mres3 = match(cur, -1, false);
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displayMres(mres3)
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int remaining_len = mres3.match_len;
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if (remaining_len <= 0) {
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// Apparently the searched string is not in the remaining part
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break;
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@ -3613,26 +3639,29 @@ int findForwardAdv(DocIterator & cur, MatchStringAdv const & match)
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}
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}
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LYXERR(Debug::FIND, "Advancing cur: " << cur);
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int match_len3 = match(cur, 1).match_len;
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mres3 = match(cur, 1);
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displayMres(mres3)
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int match_len3 = mres3.match_len;
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if (match_len3 < 0)
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continue;
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int match_len2 = match(cur).match_len;
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mres3 = match(cur);
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displayMres(mres3)
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int match_len2 = mres3.match_len;
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LYXERR(Debug::FIND, "match_len2: " << match_len2);
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if (match_len2 > 0) {
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// Sometimes in finalize we understand it wasn't a match
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// and we need to continue the outest loop
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LYXERR(Debug::FIND, "Finalizing");
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int len = findAdvFinalize(cur, match);
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if (len > 0) {
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return len;
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}
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}
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if (match_len2 >= 0) {
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if (match_len2 == 0)
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match_len_zero_count++;
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else
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match_len_zero_count = 0;
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}
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else {
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if (match_len2 > 0)
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match_len_zero_count = 0;
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else if (match_len2 == 0)
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match_len_zero_count++;
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if (match_len2 < 0) {
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if (++match_len_zero_count > 3) {
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LYXERR(Debug::FIND, "match_len2_zero_count: " << match_len_zero_count << ", match_len was " << match_len);
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}
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@ -3913,7 +3942,7 @@ bool findAdv(BufferView * bv, FindAndReplaceOptions const & opt)
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try {
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MatchStringAdv matchAdv(bv->buffer(), opt);
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#if (QT_VERSION >= 0x050000)
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#if QTSEARCH
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if (!matchAdv.regexIsValid) {
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bv->message(lyx::from_utf8(matchAdv.regexError));
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return(false);
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