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FindAdv: Optimizing forward search
Still not as fast as quick search Also started to remove some unused code.
This commit is contained in:
Kornel Benko
parent
5d47a7ee57
commit
c600906d92
319
src/lyxfind.cpp
319
src/lyxfind.cpp
@ -902,8 +902,9 @@ public:
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int pos;
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int leadsize;
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int pos_len;
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int searched_size;
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vector <string> result = vector <string>();
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MatchResult(int len = 0): match_len(len),match_prefix(0),match2end(0), pos(0),leadsize(0),pos_len(-1) {};
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MatchResult(int len = 0): match_len(len),match_prefix(0),match2end(0), pos(0),leadsize(0),pos_len(-1),searched_size(0) {};
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};
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static MatchResult::range interpretMatch(MatchResult &oldres, MatchResult &newres)
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@ -2573,7 +2574,12 @@ int LatexInfo::dispatch(ostringstream &os, int previousStart, KeyInfo &actual)
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case KeyInfo::doRemove: {
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// Remove the key with all parameters and following spaces
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size_t pos;
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for (pos = actual._dataEnd+1; pos < interval_.par.length(); pos++) {
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size_t start;
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if (interval_.par[actual._dataEnd-1] == ' ')
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start = actual._dataEnd;
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else
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start = actual._dataEnd+1;
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for (pos = start; pos < interval_.par.length(); pos++) {
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if ((interval_.par[pos] != ' ') && (interval_.par[pos] != '%'))
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break;
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}
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@ -3030,8 +3036,11 @@ static void modifyRegexForMatchWord(string &t)
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s += "\\S";
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lastpos = sub.position(2) + sub.length(2);
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}
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if (lastpos == 0)
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if (lastpos == 0) {
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s = "\\b" + t + "\\b";
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t = s;
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return;
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}
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else if (lastpos < t.length())
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s += t.substr(lastpos, t.length() - lastpos);
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t = "\\b" + s + "\\b";
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@ -3111,21 +3120,6 @@ MatchStringAdv::MatchStringAdv(lyx::Buffer & buf, FindAndReplaceOptions & opt)
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LYXERR(Debug::FIND, "par_as_string now is '" << par_as_string << "'");
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LYXERR(Debug::FIND, "par_as_string after correctRegex is '" << par_as_string << "'");
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++close_wildcards;
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/*
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if (
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// Insert .* before trailing '\$' ('$' has been escaped by escape_for_regex)
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regex_replace(par_as_string, par_as_string, "(.*[^\\\\])(\\\\\\$)\\'", "$1(.*?)$2")
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// Insert .* before trailing '\\\]' ('\]' has been escaped by escape_for_regex)
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|| regex_replace(par_as_string, par_as_string, "(.*[^\\\\])( \\\\\\\\\\\\\\])\\'", "$1(.*?)$2")
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// Insert .* before trailing '\\end\{...}' ('\end{...}' has been escaped by escape_for_regex)
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|| regex_replace(par_as_string, par_as_string,
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"(.*[^\\\\])( \\\\\\\\end\\\\\\{[a-zA-Z_]*)(\\\\\\*)?(\\\\\\})\\'", "$1(.*?)$2$3$4")
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// Insert .* before trailing '\}' ('}' has been escaped by escape_for_regex)
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|| regex_replace(par_as_string, par_as_string, "(.*[^\\\\])(\\\\\\})\\'", "$1(.*?)$2")
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) {
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++close_wildcards;
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}
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*/
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size_t lng = par_as_string.size();
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if (!opt.ignoreformat) {
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// Remove extra '\}' at end if not part of \{\.\}
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@ -3166,13 +3160,6 @@ MatchStringAdv::MatchStringAdv(lyx::Buffer & buf, FindAndReplaceOptions & opt)
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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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/* opt.matchword is ignored if using regex
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so expanding par_as_string with "\\b" seems appropriate here
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if regex contains for instance '.*' or '.+'
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1.) Nothing to do, if 'par_as_string' contains "\\b" already.
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(Means, that the user knows how to handle whole words
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2.) else replace '.' with "\\S" and wrap the regex with "\\b"
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*/
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if (opt.matchword) {
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modifyRegexForMatchWord(par_as_string);
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opt.matchword = false;
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@ -3252,6 +3239,7 @@ MatchResult MatchStringAdv::findAux(DocIterator const & cur, int len, bool at_be
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{
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MatchResult mres;
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mres.searched_size = len;
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if (at_begin &&
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(opt.restr == FindAndReplaceOptions::R_ONLY_MATHS && !cur.inMathed()) )
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return mres;
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@ -3444,43 +3432,6 @@ MatchResult MatchStringAdv::operator()(DocIterator const & cur, int len, bool at
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}
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else
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return mres;
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/* DEAD CODE follows
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if (res == 0 || !at_begin || !opt.matchword || !cur.inTexted())
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return mres;
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if ((len > 0) && (res < len)) {
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mres.match_len = 0;
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return mres;
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}
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Paragraph const & par = cur.paragraph();
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bool ws_left = (cur.pos() > 0)
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? par.isWordSeparator(cur.pos() - 1)
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: true;
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bool ws_right;
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if (len < 0)
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ws_right = true;
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else {
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ws_right = (cur.pos() + len < par.size())
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? par.isWordSeparator(cur.pos() + len)
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: true;
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}
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LYXERR(Debug::FIND,
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"cur.pos()=" << cur.pos() << ", res=" << res
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<< ", separ: " << ws_left << ", " << ws_right
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<< ", len: " << len
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<< endl);
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if (ws_left && ws_right) {
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// Check for word separators inside the found 'word'
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for (int i = 0; i < len; i++) {
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if (par.isWordSeparator(cur.pos() + i)) {
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mres.match_len = 0;
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return mres;
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}
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}
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return mres;
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}
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mres.match_len = 0;
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return mres;
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*/
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}
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#if 0
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@ -3670,54 +3621,37 @@ docstring latexifyFromCursor(DocIterator const & cur, int len)
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#if defined(ResultsDebug)
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// Debugging output
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static void displayMResult(MatchResult &mres, int increment, string from)
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static void displayMResult(MatchResult &mres, string from, DocIterator & cur)
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{
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LYXERR0( "from:\t\t\t" << from);
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LYXERR0( "pos: " << mres.pos << " increment " << increment);
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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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LYXERR0( "pos_len: " << mres.pos_len); // Set in finalize
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for (size_t i = 0; i < mres.result.size(); i++)
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LYXERR0( "Match " << i << " = \"" << mres.result[i] << "\"");
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}
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#define displayMres(s,i, txt) displayMResult(s,i, xtx);
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#else
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#define displayMres(s,i, txt)
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#endif
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/*
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* Not good, we miss possible matches containing also characters not found in
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* the innermost depth.
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static bool findAdvForwardInnermost(DocIterator & cur)
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{
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size_t d;
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DocIterator old_cur = cur;
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int forwardCount = 0;
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do {
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d = cur.depth();
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old_cur = cur;
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cur.forwardPos();
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if (!cur) {
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break;
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}
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if (cur.depth() > d) {
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forwardCount++;
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continue;
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}
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if (cur.depth() == d)
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break;
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} while(1);
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cur = old_cur;
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if (forwardCount > 0) {
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LYXERR(Debug::FIND, "Forwarded " << forwardCount << " step(s) (searching for innermost match)");
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return true;;
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LYXERR0( "from:\t\t\t" << from);
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string status;
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if (mres.pos_len > 0) {
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// Set in finalize
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status = "FINALSEARCH";
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}
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else
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return false;
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else {
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if (mres.match_len > 0) {
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if ((mres.match_prefix == 0) && (mres.pos == mres.leadsize))
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status = "Good Match";
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else
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status = "Matched in";
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}
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else
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status = "MissedSearch";
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}
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LYXERR0( status << "(" << cur.pos() << " ... " << mres.searched_size + cur.pos() << ") cur.lastpos(" << cur.lastpos() << ")");
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if ((mres.leadsize > 0) || (mres.match_len > 0) || (mres.match2end > 0))
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LYXERR0( "leadsize(" << mres.leadsize << ") match_len(" << mres.match_len << ") match2end(" << mres.match2end << ")");
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if ((mres.pos > 0) || (mres.match_prefix > 0))
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LYXERR0( "pos(" << mres.pos << ") match_prefix(" << mres.match_prefix << ")");
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for (size_t i = 0; i < mres.result.size(); i++)
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LYXERR0( "Match " << i << " = \"" << mres.result[i] << "\"");
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}
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*/
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#define displayMres(s, txt, cur) displayMResult(s, txt, cur);
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#else
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#define displayMres(s, txt, cur)
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#endif
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/** Finalize an advanced find operation, advancing the cursor to the innermost
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** position that matches, plus computing the length of the matching text to
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@ -3738,8 +3672,9 @@ MatchResult &findAdvFinalize(DocIterator & cur, MatchStringAdv const & match, Ma
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// so the search for "www" gives prefix_len = 7 (== sizeof("http://")
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// and although we search for only 3 chars, we find the whole hyperlink inset
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bool at_begin = (expected.match_prefix == 0);
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//if (findAdvForwardInnermost(cur)) {
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if (expected.match_len > 0) {
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LASSERT(at_begin, /**/);
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if (expected.match_len > 0 && at_begin) {
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// Search for deepest match
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old_cur = cur;
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max_match = expected;
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do {
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@ -3749,16 +3684,21 @@ MatchResult &findAdvFinalize(DocIterator & cur, MatchStringAdv const & match, Ma
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break;
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if (cur.depth() < d)
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break;
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if ((cur.depth() == d) && at_begin)
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if (cur.depth() == d)
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break;
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mres = match(cur, -1, at_begin);
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displayMres(mres, -1, "Checking innermost");
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size_t lastd = d;
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while (cur && cur.depth() > lastd) {
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lastd = cur.depth();
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mres = match(cur, -1, at_begin);
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displayMres(mres, "Checking innermost", cur);
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if (mres.match_len > 0)
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break;
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// maybe deeper?
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cur.forwardPos();
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}
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if (mres.match_len < expected.match_len)
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break;
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if (!at_begin && (mres.match_prefix > max_match.match_prefix))
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break;
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max_match = mres;
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at_begin = (max_match.match_prefix == 0);
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old_cur = cur;;
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} while(1);
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cur = old_cur;
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@ -3766,7 +3706,7 @@ MatchResult &findAdvFinalize(DocIterator & cur, MatchStringAdv const & match, Ma
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else {
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// (expected.match_len <= 0)
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mres = match(cur); /* match valid only if not searching whole words */
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displayMres(mres, 0, "Start with negative match");
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displayMres(mres, "Start with negative match", cur);
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max_match = mres;
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}
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if (max_match.match_len <= 0) return fail;
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@ -3795,6 +3735,7 @@ MatchResult &findAdvFinalize(DocIterator & cur, MatchStringAdv const & match, Ma
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old_match = new_match;
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LYXERR(Debug::FIND, "verifying match with len = " << len);
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}
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displayMres(old_match, "SEARCH RESULT", cur)
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return old_match;
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}
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else {
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@ -3804,15 +3745,18 @@ MatchResult &findAdvFinalize(DocIterator & cur, MatchStringAdv const & match, Ma
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while (maxl > minl) {
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MatchResult mres2;
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mres2 = match(cur, len, at_begin);
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displayMres(mres2, len, "Finalize loop");
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int actual_match = mres2.match_len;
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if (actual_match >= max_match.match_len) {
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// actual_match > max_match _can_ happen,
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displayMres(mres2, "Finalize loop", cur);
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int actual_match_len = mres2.match_len;
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if (actual_match_len >= max_match.match_len) {
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// actual_match_len > max_match _can_ happen,
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// if the search area splits
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// some following word so that the regex
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// (e.g. 'r.*r\b' matches 'r' from the middle of the
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// splitted word)
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// This means, the len value is too big
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actual_match_len = max_match.match_len;
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max_match = mres2;
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max_match.match_len = actual_match_len;
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maxl = len;
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if (maxl - minl < 4)
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len = (int)((maxl + minl)/2);
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@ -3820,11 +3764,12 @@ MatchResult &findAdvFinalize(DocIterator & cur, MatchStringAdv const & match, Ma
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len = (int)(minl + (maxl - minl + 3)/4);
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}
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else {
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// (actual_match < max_match)
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// (actual_match_len < max_match.match_len)
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minl = len + 1;
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len = (int)((maxl + minl)/2);
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}
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}
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len = minl;
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old_cur = cur;
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// Search for real start of matched characters
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while (len > 1) {
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@ -3844,6 +3789,7 @@ MatchResult &findAdvFinalize(DocIterator & cur, MatchStringAdv const & match, Ma
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// Ha, got it! The shorter selection has the same match length
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len--;
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old_cur = cur;
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max_match = actual_match;
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}
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else {
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// OK, the shorter selection matches less chars, revert to previous value
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@ -3864,6 +3810,7 @@ MatchResult &findAdvFinalize(DocIterator & cur, MatchStringAdv const & match, Ma
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return fail;
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else {
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max_match.pos_len = len;
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displayMres(max_match, "SEARCH RESULT", cur)
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return max_match;
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}
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}
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@ -3874,28 +3821,50 @@ int findForwardAdv(DocIterator & cur, MatchStringAdv & match)
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{
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if (!cur)
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return 0;
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bool repeat = false;
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while (!theApp()->longOperationCancelled() && cur) {
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//(void) findAdvForwardInnermost(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,-1, "Starting findForwardAdv")
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string msg = "Starting";
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if (repeat)
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msg = "Repeated";
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displayMres(mres, msg + " findForwardAdv", cur)
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int match_len = mres.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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if (match_len <= 0) {
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// This should exit nested insets, if any, or otherwise undefine the currsor.
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cur.pos() = cur.lastpos();
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LYXERR(Debug::FIND, "Advancing pos: cur=" << cur);
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cur.forwardPos();
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}
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else { // match_len > 0
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// Try to find the begin of searched string
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int increment;
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int firstInvalid = 100000;
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if (mres.match_prefix + mres.pos - mres.leadsize > 1)
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increment = (mres.match_prefix + mres.pos - mres.leadsize + 1)*3/4;
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else
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increment = 1;
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{
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int incrmatch = (mres.match_prefix + mres.pos - mres.leadsize + 1)*3/4;
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int incrcur = (cur.lastpos() - cur.pos() + 1 )*3/4;
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if (incrcur < incrmatch)
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increment = incrcur;
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else
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increment = incrmatch;
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if (increment < 1)
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increment = 1;
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}
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LYXERR(Debug::FIND, "Set increment to " << increment);
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while (increment > 0) {
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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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size_t skipping = cur.depth();
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for (int i = 0; i < increment && cur; i++) {
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cur.forwardPos();
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while (cur && cur.depth() > skipping) {
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cur.pos() = cur.lastpos();
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cur.forwardPos();
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}
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}
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if (! cur || (cur.pit() > old_cur.pit())) {
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// Are we outside of the paragraph?
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@ -3905,7 +3874,7 @@ int findForwardAdv(DocIterator & cur, MatchStringAdv & 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,increment, "findForwardAdv loop")
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displayMres(mres2, "findForwardAdv loop", cur)
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switch (interpretMatch(mres, mres2)) {
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case MatchResult::newIsTooFar:
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// behind the expected match
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@ -3914,7 +3883,7 @@ int findForwardAdv(DocIterator & cur, MatchStringAdv & match)
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increment /= 2;
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break;
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case MatchResult::newIsBetter:
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// not reached ye, but cur.pos()+increment is bettert
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// not reached yet, but cur.pos()+increment is bettert
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mres = mres2;
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firstInvalid -= increment;
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if (increment > firstInvalid*3/4)
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@ -3927,7 +3896,7 @@ int findForwardAdv(DocIterator & cur, MatchStringAdv & match)
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default:
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// Todo@
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// Handle not like MatchResult::newIsTooFar
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// LYXERR0( "Something is wrong: Increment = " << increment << " match_prefix = " << mres.match_prefix);
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LYXERR0( "Something is wrong: Increment = " << increment << " match_prefix = " << mres.match_prefix);
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firstInvalid--;
|
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increment = increment*3/4;
|
||||
cur = old_cur;
|
||||
@ -3935,81 +3904,25 @@ int findForwardAdv(DocIterator & cur, MatchStringAdv & match)
|
||||
}
|
||||
}
|
||||
}
|
||||
if (mres.match_len > 0 && mres.match_prefix + mres.pos - mres.leadsize > 0) {
|
||||
repeat = true;
|
||||
cur.forwardPos();
|
||||
continue;
|
||||
}
|
||||
// LYXERR0("Leaving first loop");
|
||||
{
|
||||
LYXERR(Debug::FIND, "Finalizing 1");
|
||||
MatchResult found_match = findAdvFinalize(cur, match, mres);
|
||||
if (found_match.match_len > 0) {
|
||||
LASSERT(found_match.pos_len > 0, /**/);
|
||||
match.FillResults(found_match);
|
||||
return found_match.pos_len;
|
||||
}
|
||||
else {
|
||||
// try next possible match
|
||||
cur.forwardPos();
|
||||
continue;
|
||||
}
|
||||
LYXERR(Debug::FIND, "Finalizing 1");
|
||||
MatchResult found_match = findAdvFinalize(cur, match, mres);
|
||||
if (found_match.match_len > 0) {
|
||||
LASSERT(found_match.pos_len > 0, /**/);
|
||||
match.FillResults(found_match);
|
||||
return found_match.pos_len;
|
||||
}
|
||||
// The following code is newer reached
|
||||
// but parts of it may be needed in future
|
||||
int match_len_zero_count = 0;
|
||||
MatchResult mres3;
|
||||
for (int i = 0; !theApp()->longOperationCancelled() && cur; cur.forwardPos()) {
|
||||
if (i++ > 3) {
|
||||
mres3 = match(cur, -1, false);
|
||||
displayMres(mres3, 1, 1 "Prepare finalize in findForwardAdv")
|
||||
int remaining_len = mres3.match_len;
|
||||
if (remaining_len <= 0) {
|
||||
// Apparently the searched string is not in the remaining part
|
||||
break;
|
||||
}
|
||||
else {
|
||||
i = 0;
|
||||
}
|
||||
}
|
||||
LYXERR(Debug::FIND, "Advancing cur: " << cur);
|
||||
mres3 = match(cur, 1);
|
||||
displayMres(mres3, 1, "Prepare 2 finalize in findForwardAdv")
|
||||
int match_len3 = mres3.match_len;
|
||||
if (match_len3 < 0)
|
||||
continue;
|
||||
mres3 = match(cur);
|
||||
displayMres(mres3, 1, "Prepare 3 finalize in findForwardAdv")
|
||||
int match_len2 = mres3.match_len;
|
||||
LYXERR(Debug::FIND, "match_len2: " << match_len2);
|
||||
if (match_len2 > 0) {
|
||||
// Sometimes in finalize we understand it wasn't a match
|
||||
// and we need to continue the outest loop
|
||||
LYXERR(Debug::FIND, "Finalizing 2");
|
||||
MatchResult mres4 = findAdvFinalize(cur, match, mres.match_len);
|
||||
if (mres4.match_len > 0) {
|
||||
match.FillResults(mres4);
|
||||
LASSERT(mres4.pos_len > 0, /**/);
|
||||
return mres4.pos_len;
|
||||
}
|
||||
}
|
||||
if (match_len2 > 0)
|
||||
match_len_zero_count = 0;
|
||||
else if (match_len2 == 0)
|
||||
match_len_zero_count++;
|
||||
if (match_len2 < 0) {
|
||||
if (++match_len_zero_count > 3) {
|
||||
LYXERR(Debug::FIND, "match_len2_zero_count: " << match_len_zero_count << ", match_len was " << match_len);
|
||||
}
|
||||
break;
|
||||
}
|
||||
else {
|
||||
// try next possible match
|
||||
cur.forwardPos();
|
||||
repeat = false;
|
||||
continue;
|
||||
}
|
||||
if (!cur)
|
||||
return 0;
|
||||
}
|
||||
if (match_len >= 0 && cur.pit() < cur.lastpit()) {
|
||||
LYXERR(Debug::FIND, "Advancing par: cur=" << cur);
|
||||
cur.forwardPar();
|
||||
} else {
|
||||
// This should exit nested insets, if any, or otherwise undefine the currsor.
|
||||
cur.pos() = cur.lastpos();
|
||||
LYXERR(Debug::FIND, "Advancing pos: cur=" << cur);
|
||||
cur.forwardPos();
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user