+namespace {
+
+typedef vector<pair<string, string> > Escapes;
+
+/// A map of symbols and their escaped equivalent needed within a regex.
+Escapes const & get_regexp_escapes()
+{
+ static Escapes escape_map;
+ if (escape_map.empty()) {
+ escape_map.push_back(pair<string, string>("\\", "\\\\"));
+ escape_map.push_back(pair<string, string>("^", "\\^"));
+ escape_map.push_back(pair<string, string>("$", "\\$"));
+ escape_map.push_back(pair<string, string>("{", "\\{"));
+ escape_map.push_back(pair<string, string>("}", "\\}"));
+ escape_map.push_back(pair<string, string>("[", "\\["));
+ escape_map.push_back(pair<string, string>("]", "\\]"));
+ escape_map.push_back(pair<string, string>("(", "\\("));
+ escape_map.push_back(pair<string, string>(")", "\\)"));
+ escape_map.push_back(pair<string, string>("+", "\\+"));
+ escape_map.push_back(pair<string, string>("*", "\\*"));
+ escape_map.push_back(pair<string, string>(".", "\\."));
+ }
+ return escape_map;
+}
+
+/// A map of lyx escaped strings and their unescaped equivalent.
+Escapes const & get_lyx_unescapes() {
+ static Escapes escape_map;
+ if (escape_map.empty()) {
+ escape_map.push_back(pair<string, string>("{*}", "*"));
+ escape_map.push_back(pair<string, string>("{[}", "["));
+ escape_map.push_back(pair<string, string>("\\$", "$"));
+ escape_map.push_back(pair<string, string>("\\backslash{}", "\\"));
+ escape_map.push_back(pair<string, string>("\\backslash", "\\"));
+ escape_map.push_back(pair<string, string>("\\sim ", "~"));
+ escape_map.push_back(pair<string, string>("\\^", "^"));
+ }
+ return escape_map;
+}
+
+/** @todo Probably the maps need to be migrated to regexps, in order to distinguish if
+ ** the found occurrence were escaped.
+ **/
+string apply_escapes(string s, Escapes const & escape_map)
+{
+ LYXERR(Debug::FIND, "Escaping: '" << s << "'");
+ Escapes::const_iterator it;
+ for (it = escape_map.begin(); it != escape_map.end(); ++it) {
+// LYXERR(Debug::FIND, "Escaping " << it->first << " as " << it->second);
+ unsigned int pos = 0;
+ while (pos < s.length() && (pos = s.find(it->first, pos)) < s.length()) {
+ s.replace(pos, it->first.length(), it->second);
+// LYXERR(Debug::FIND, "After escape: " << s);
+ pos += it->second.length();
+// LYXERR(Debug::FIND, "pos: " << pos);
+ }
+ }
+ LYXERR(Debug::FIND, "Escaped : '" << s << "'");
+ return s;
+}
+
+/** Return the position of the closing brace matching the open one at s[pos],
+ ** or s.size() if not found.
+ **/
+size_t find_matching_brace(string const & s, size_t pos)
+{
+ LASSERT(s[pos] == '{', /* */);
+ int open_braces = 1;
+ for (++pos; pos < s.size(); ++pos) {
+ if (s[pos] == '\\')
+ ++pos;
+ else if (s[pos] == '{')
+ ++open_braces;
+ else if (s[pos] == '}') {
+ --open_braces;
+ if (open_braces == 0)
+ return pos;
+ }
+ }
+ return s.size();
+}
+
+/// Within \regexp{} apply get_regex_escapes(), while outside apply get_lyx_unescapes().
+string escape_for_regex(string s)
+{
+ size_t pos = 0;
+ while (pos < s.size()) {
+ size_t new_pos = s.find("\\regexp{", pos);
+ if (new_pos == string::npos)
+ new_pos = s.size();
+ LYXERR(Debug::FIND, "new_pos: " << new_pos);
+ string t = apply_escapes(s.substr(pos, new_pos - pos), get_lyx_unescapes());
+ LYXERR(Debug::FIND, "t : " << t);
+ t = apply_escapes(t, get_regexp_escapes());
+ s.replace(pos, new_pos - pos, t);
+ new_pos = pos + t.size();
+ LYXERR(Debug::FIND, "Regexp after escaping: " << s);
+ LYXERR(Debug::FIND, "new_pos: " << new_pos);
+ if (new_pos == s.size())
+ break;
+ size_t end_pos = find_matching_brace(s, new_pos + 7);
+ LYXERR(Debug::FIND, "end_pos: " << end_pos);
+ t = apply_escapes(s.substr(new_pos + 8, end_pos - (new_pos + 8)), get_lyx_unescapes());
+ LYXERR(Debug::FIND, "t : " << t);
+ if (end_pos == s.size()) {
+ s.replace(new_pos, end_pos - new_pos, t);
+ pos = s.size();
+ LYXERR(Debug::FIND, "Regexp after \\regexp{} removal: " << s);
+ break;
+ }
+ s.replace(new_pos, end_pos + 1 - new_pos, t);
+ LYXERR(Debug::FIND, "Regexp after \\regexp{} removal: " << s);
+ pos = new_pos + t.size();
+ LYXERR(Debug::FIND, "pos: " << pos);
+ }
+ return s;
+}
+
+/// Wrapper for boost::regex_replace with simpler interface
+bool regex_replace(string const & s, string & t, string const & searchstr,
+ string const & replacestr)
+{
+ boost::regex e(searchstr);
+ ostringstream oss;
+ ostream_iterator<char, char> it(oss);
+ boost::regex_replace(it, s.begin(), s.end(), e, replacestr);
+ // tolerate t and s be references to the same variable
+ bool rv = (s != oss.str());
+ t = oss.str();
+ return rv;
+}
+
+/** Checks if supplied string segment is well-formed from the standpoint of matching open-closed braces.
+ **
+ ** Verify that closed braces exactly match open braces. This avoids that, for example,
+ ** \frac{.*}{x} matches \frac{x+\frac{y}{x}}{z} with .* being 'x+\frac{y'.
+ **
+ ** @param unmatched
+ ** Number of open braces that must remain open at the end for the verification to succeed.
+ **/
+bool braces_match(string::const_iterator const & beg,
+ string::const_iterator const & end, int unmatched = 0)
+{
+ int open_pars = 0;
+ string::const_iterator it = beg;
+ LYXERR(Debug::FIND, "Checking " << unmatched << " unmatched braces in '" << string(beg, end) << "'");
+ for (; it != end; ++it) {
+ // Skip escaped braces in the count
+ if (*it == '\\') {
+ ++it;
+ if (it == end)
+ break;
+ } else if (*it == '{') {
+ ++open_pars;
+ } else if (*it == '}') {
+ if (open_pars == 0) {
+ LYXERR(Debug::FIND, "Found unmatched closed brace");
+ return false;
+ } else
+ --open_pars;
+ }
+ }
+ if (open_pars != unmatched) {
+ LYXERR(Debug::FIND, "Found " << open_pars
+ << " instead of " << unmatched
+ << " unmatched open braces at the end of count");
+ return false;
+ }
+ LYXERR(Debug::FIND, "Braces match as expected");
+ return true;
+}
+
+/** The class performing a match between a position in the document and the FindAdvOptions.
+ **/
+class MatchStringAdv {
+public:
+ MatchStringAdv(lyx::Buffer & buf, FindAndReplaceOptions const & opt);
+
+ /** Tests if text starting at the supplied position matches with the one provided to the MatchStringAdv
+ ** constructor as opt.search, under the opt.* options settings.
+ **
+ ** @param at_begin
+ ** If set, then match is searched only against beginning of text starting at cur.
+ ** If unset, then match is searched anywhere in text starting at cur.
+ **
+ ** @return
+ ** The length of the matching text, or zero if no match was found.
+ **/
+ int operator()(DocIterator const & cur, int len = -1, bool at_begin = true) const;
+
+public:
+ /// buffer
+ lyx::Buffer * p_buf;
+ /// first buffer on which search was started
+ lyx::Buffer * const p_first_buf;
+ /// options
+ FindAndReplaceOptions const & opt;
+
+private:
+ /** Normalize a stringified or latexified LyX paragraph.
+ **
+ ** Normalize means:
+ ** <ul>
+ ** <li>if search is not casesensitive, then lowercase the string;
+ ** <li>remove any newline at begin or end of the string;
+ ** <li>replace any newline in the middle of the string with a simple space;
+ ** <li>remove stale empty styles and environments, like \emph{} and \textbf{}.
+ ** </ul>
+ **
+ ** @todo Normalization should also expand macros, if the corresponding
+ ** search option was checked.
+ **/
+ string normalize(docstring const & s) const;
+ // normalized string to search
+ string par_as_string;
+ // regular expression to use for searching
+ boost::regex regexp;
+ // same as regexp, but prefixed with a ".*"
+ boost::regex regexp2;
+ // unmatched open braces in the search string/regexp
+ int open_braces;
+ // number of (.*?) subexpressions added at end of search regexp for closing
+ // environments, math mode, styles, etc...
+ int close_wildcards;
+};
+
+
+MatchStringAdv::MatchStringAdv(lyx::Buffer & buf, FindAndReplaceOptions const & opt)
+ : p_buf(&buf), p_first_buf(&buf), opt(opt)
+{
+ par_as_string = normalize(opt.search);
+ open_braces = 0;
+ close_wildcards = 0;
+
+ if (! opt.regexp) {
+ // Remove trailing closure of math, macros and environments, so to catch parts of them.
+ do {
+ LYXERR(Debug::FIND, "par_as_string now is '" << par_as_string << "'");
+ if (regex_replace(par_as_string, par_as_string, "(.*)[[:blank:]]\\'", "$1"))
+ continue;
+ if (regex_replace(par_as_string, par_as_string, "(.*[^\\\\]) ?\\$\\'", "$1"))
+ continue;
+ // @todo need to account for open square braces as well ?
+ if (regex_replace(par_as_string, par_as_string, "(.*[^\\\\]) ?\\\\\\]\\'", "$1"))
+ continue;
+ if (regex_replace(par_as_string, par_as_string, "(.*[^\\\\]) ?\\\\end\\{[a-zA-Z_]*\\}\\'", "$1"))
+ continue;
+ if (regex_replace(par_as_string, par_as_string, "(.*[^\\\\]) ?\\}\\'", "$1")) {
+ ++open_braces;
+ continue;
+ }
+ break;
+ } while (true);
+ LYXERR(Debug::FIND, "Open braces: " << open_braces);
+ LASSERT(braces_match(par_as_string.begin(), par_as_string.end(), open_braces), /* */);
+ LYXERR(Debug::FIND, "Built MatchStringAdv object: par_as_string = '" << par_as_string << "'");
+ } else {
+ par_as_string = escape_for_regex(par_as_string);
+ // Insert (.*?) before trailing closure of math, macros and environments, so to catch parts of them.
+ LYXERR(Debug::FIND, "par_as_string now is '" << par_as_string << "'");
+ if (
+ // Insert .* before trailing '\$' ('$' has been escaped by escape_for_regex)
+ regex_replace(par_as_string, par_as_string, "(.*[^\\\\])(\\\\\\$)\\'", "$1(.*?)$2")
+ // Insert .* before trailing '\\\]' ('\]' has been escaped by escape_for_regex)
+ || regex_replace(par_as_string, par_as_string, "(.*[^\\\\])(\\\\\\\\\\\\\\])\\'", "$1(.*?)$2")
+ // Insert .* before trailing '\\end\{...}' ('\end{...}' has been escaped by escape_for_regex)
+ || regex_replace(par_as_string, par_as_string,
+ "(.*[^\\\\])(\\\\\\\\end\\\\\\{[a-zA-Z_]*\\\\\\})\\'", "$1(.*?)$2")
+ // Insert .* before trailing '\}' ('}' has been escaped by escape_for_regex)
+ || regex_replace(par_as_string, par_as_string, "(.*[^\\\\])(\\\\\\})\\'", "$1(.*?)$2")
+ ) {
+ ++close_wildcards;
+ }
+ LYXERR(Debug::FIND, "par_as_string now is '" << par_as_string << "'");
+ LYXERR(Debug::FIND, "Open braces: " << open_braces);
+ LYXERR(Debug::FIND, "Close .*? : " << close_wildcards);
+ LASSERT(braces_match(par_as_string.begin(), par_as_string.end(), open_braces), /* */);
+ LYXERR(Debug::FIND, "Replaced text (to be used as regex): " << par_as_string);
+ // If entered regexp must match at begin of searched string buffer
+ regexp = boost::regex(string("\\`") + par_as_string);
+ // If entered regexp may match wherever in searched string buffer
+ regexp2 = boost::regex(string("\\`.*") + par_as_string);
+ }
+}
+
+
+int MatchStringAdv::operator()(DocIterator const & cur, int len, bool at_begin) const
+{
+ docstring docstr = stringifyFromForSearch(opt, cur, len);
+ LYXERR(Debug::FIND, "Matching against '" << lyx::to_utf8(docstr) << "'");
+ string str = normalize(docstr);
+ LYXERR(Debug::FIND, "After normalization: '" << str << "'");
+ if (! opt.regexp) {
+ if (at_begin) {
+ if (str.substr(0, par_as_string.size()) == par_as_string)
+ return par_as_string.size();
+ } else {
+ size_t pos = str.find(par_as_string);
+ if (pos != string::npos)
+ return par_as_string.size();
+ }
+ } else {
+ // Try all possible regexp matches,
+ //until one that verifies the braces match test is found
+ boost::regex const *p_regexp = at_begin ? ®exp : ®exp2;
+ boost::sregex_iterator re_it(str.begin(), str.end(), *p_regexp);
+ boost::sregex_iterator re_it_end;
+ for (; re_it != re_it_end; ++re_it) {
+ boost::match_results<string::const_iterator> const & m = *re_it;
+ // Check braces on the segment that matched the entire regexp expression,
+ // plus the last subexpression, if a (.*?) was inserted in the constructor.
+ if (! braces_match(m[0].first, m[0].second, open_braces))
+ return 0;
+ // Check braces on segments that matched all (.*?) subexpressions.
+ for (size_t i = 1; i < m.size(); ++i)
+ if (! braces_match(m[i].first, m[i].second))
+ return false;
+ // Exclude from the returned match length any length
+ // due to close wildcards added at end of regexp
+ if (close_wildcards == 0)
+ return m[0].second - m[0].first;
+ else
+ return m[m.size() - close_wildcards].first - m[0].first;
+ }
+ }
+ return 0;
+}
+
+
+string MatchStringAdv::normalize(docstring const & s) const
+{
+ string t;
+ if (! opt.casesensitive)
+ t = lyx::to_utf8(lowercase(s));
+ else
+ t = lyx::to_utf8(s);
+ // Remove \n at begin
+ while (t.size() > 0 && t[0] == '\n')
+ t = t.substr(1);
+ // Remove \n at end
+ while (t.size() > 0 && t[t.size() - 1] == '\n')
+ t = t.substr(0, t.size() - 1);
+ size_t pos;
+ // Replace all other \n with spaces
+ while ((pos = t.find("\n")) != string::npos)
+ t.replace(pos, 1, " ");
+ // Remove stale empty \emph{}, \textbf{} and similar blocks from latexify
+ LYXERR(Debug::FIND, "Removing stale empty \\emph{}, \\textbf{}, \\*section{} macros from: " << t);
+ while (regex_replace(t, t, "\\\\(emph|textbf|subsubsection|subsection|section|subparagraph|paragraph)(\\{\\})+", ""))
+ LYXERR(Debug::FIND, " further removing stale empty \\emph{}, \\textbf{} macros from: " << t);
+ return t;
+}
+
+
+docstring stringifyFromCursor(DocIterator const & cur, int len)
+{
+ LYXERR(Debug::FIND, "Stringifying with len=" << len << " from cursor at pos: " << cur);
+ if (cur.inTexted()) {
+ Paragraph const & par = cur.paragraph();
+ // TODO what about searching beyond/across paragraph breaks ?
+ // TODO Try adding a AS_STR_INSERTS as last arg
+ pos_type end = ( len == -1 || cur.pos() + len > int(par.size()) ) ?
+ int(par.size()) : cur.pos() + len;
+ OutputParams runparams(&cur.buffer()->params().encoding());
+ odocstringstream os;
+ runparams.nice = true;
+ runparams.flavor = OutputParams::LATEX;
+ runparams.linelen = 100000; //lyxrc.plaintext_linelen;
+ // No side effect of file copying and image conversion
+ runparams.dryrun = true;
+ LYXERR(Debug::FIND, "Stringifying with cur: "
+ << cur << ", from pos: " << cur.pos() << ", end: " << end);
+ return par.stringify(cur.pos(), end, AS_STR_INSETS, runparams);
+ } else if (cur.inMathed()) {
+ odocstringstream os;
+ CursorSlice cs = cur.top();
+ MathData md = cs.cell();
+ MathData::const_iterator it_end =
+ ( ( len == -1 || cs.pos() + len > int(md.size()) )
+ ? md.end() : md.begin() + cs.pos() + len );
+ for (MathData::const_iterator it = md.begin() + cs.pos(); it != it_end; ++it)
+ os << *it;
+ return os.str();
+ }
+ LYXERR(Debug::FIND, "Don't know how to stringify from here: " << cur);
+ return docstring();
+}
+
+
+/** Computes the LaTeX export of buf starting from cur and ending len positions
+ * after cur, if len is positive, or at the paragraph or innermost inset end
+ * if len is -1.
+ */
+docstring latexifyFromCursor(DocIterator const & cur, int len)
+{
+ LYXERR(Debug::FIND, "Latexifying with len=" << len << " from cursor at pos: " << cur);
+ LYXERR(Debug::FIND, " with cur.lastpost=" << cur.lastpos() << ", cur.lastrow="
+ << cur.lastrow() << ", cur.lastcol=" << cur.lastcol());
+ Buffer const & buf = *cur.buffer();
+ LASSERT(buf.isLatex(), /* */);
+
+ TexRow texrow;
+ odocstringstream ods;
+ OutputParams runparams(&buf.params().encoding());
+ runparams.nice = false;
+ runparams.flavor = OutputParams::LATEX;
+ runparams.linelen = 8000; //lyxrc.plaintext_linelen;
+ // No side effect of file copying and image conversion
+ runparams.dryrun = true;
+
+ if (cur.inTexted()) {
+ // @TODO what about searching beyond/across paragraph breaks ?
+ ParagraphList::const_iterator pit = cur.innerText()->paragraphs().begin();
+ for (int i = 0; i < cur.pit(); ++i)
+ ++pit;
+// ParagraphList::const_iterator pit_end = pit;
+// ++pit_end;
+// lyx::latexParagraphs(buf, cur.innerText()->paragraphs(), ods, texrow, runparams, string(), pit, pit_end);
+ pos_type const endpos = (len == -1 || cur.pos() + len > int(pit->size()))
+ ? pit->size() : cur.pos() + len;
+ TeXOnePar(buf, *cur.innerText(), pit, ods, texrow, runparams, string(),
+ cur.pos(), endpos);
+ LYXERR(Debug::FIND, "Latexified text: '" << lyx::to_utf8(ods.str()) << "'");
+ } else if (cur.inMathed()) {
+ // Retrieve the math environment type, and add '$' or '$[' or others (\begin{equation}) accordingly
+ for (int s = cur.depth() - 1; s >= 0; --s) {
+ CursorSlice const & cs = cur[s];
+ if (cs.asInsetMath() && cs.asInsetMath() && cs.asInsetMath()->asHullInset()) {
+ WriteStream ws(ods);
+ cs.asInsetMath()->asHullInset()->header_write(ws);
+ break;
+ }
+ }
+
+ CursorSlice const & cs = cur.top();
+ MathData md = cs.cell();
+ MathData::const_iterator it_end = ( ( len == -1 || cs.pos() + len > int(md.size()) )
+ ? md.end() : md.begin() + cs.pos() + len );
+ for (MathData::const_iterator it = md.begin() + cs.pos(); it != it_end; ++it)
+ ods << *it;
+
+ // MathData md = cur.cell();
+ // MathData::const_iterator it_end = ( ( len == -1 || cur.pos() + len > int(md.size()) ) ? md.end() : md.begin() + cur.pos() + len );
+ // for (MathData::const_iterator it = md.begin() + cur.pos(); it != it_end; ++it) {
+ // MathAtom const & ma = *it;
+ // ma.nucleus()->latex(buf, ods, runparams);
+ // }
+
+ // Retrieve the math environment type, and add '$' or '$]'
+ // or others (\end{equation}) accordingly
+ for (int s = cur.depth() - 1; s >= 0; --s) {
+ CursorSlice const & cs = cur[s];
+ InsetMath * inset = cs.asInsetMath();
+ if (inset && inset->asHullInset()) {
+ WriteStream ws(ods);
+ inset->asHullInset()->footer_write(ws);
+ break;
+ }
+ }
+ LYXERR(Debug::FIND, "Latexified math: '" << lyx::to_utf8(ods.str()) << "'");
+ } else {
+ LYXERR(Debug::FIND, "Don't know how to stringify from here: " << cur);
+ }
+ return ods.str();
+}
+
+
+/** Finalize an advanced find operation, advancing the cursor to the innermost
+ ** position that matches, plus computing the length of the matching text to
+ ** be selected
+ **/
+int findAdvFinalize(DocIterator & cur, MatchStringAdv const & match)
+{
+ // Search the foremost position that matches (avoids find of entire math
+ // inset when match at start of it)
+ size_t d;
+ DocIterator old_cur(cur.buffer());
+ do {
+ LYXERR(Debug::FIND, "Forwarding one step (searching for innermost match)");
+ d = cur.depth();
+ old_cur = cur;
+ cur.forwardPos();
+ } while (cur && cur.depth() > d && match(cur) > 0);
+ cur = old_cur;
+ LASSERT(match(cur) > 0, /* */);
+ LYXERR(Debug::FIND, "Ok");
+
+ // Compute the match length
+ int len = 1;
+ LYXERR(Debug::FIND, "verifying unmatch with len = " << len);
+ while (cur.pos() + len <= cur.lastpos() && match(cur, len) == 0) {
+ ++len;
+ LYXERR(Debug::FIND, "verifying unmatch with len = " << len);
+ }
+ // Length of matched text (different from len param)
+ int old_len = match(cur, len);
+ int new_len;
+ // Greedy behaviour while matching regexps
+ while ((new_len = match(cur, len + 1)) > old_len) {
+ ++len;
+ old_len = new_len;
+ LYXERR(Debug::FIND, "verifying match with len = " << len);
+ }
+ return len;
+}
+
+
+/// Finds forward
+int findForwardAdv(DocIterator & cur, MatchStringAdv & match)
+{
+ if (!cur)
+ return 0;
+ while (cur && !match(cur, -1, false)) {
+ if (cur.pit() < cur.lastpit())
+ cur.forwardPar();
+ else {
+ cur.forwardPos();
+ }
+ }
+ for (; cur; cur.forwardPos()) {
+ if (match(cur))
+ return findAdvFinalize(cur, match);
+ }
+ return 0;
+}
+
+
+/// Find the most backward consecutive match within same paragraph while searching backwards.
+void findMostBackwards(DocIterator & cur, MatchStringAdv const & match, int & len)
+{
+ DocIterator cur_begin = doc_iterator_begin(cur.buffer());
+ len = findAdvFinalize(cur, match);
+ if (cur != cur_begin) {
+ Inset & inset = cur.inset();
+ int old_len;
+ DocIterator old_cur;
+ DocIterator dit2;
+ do {
+ old_cur = cur;
+ old_len = len;
+ cur.backwardPos();
+ LYXERR(Debug::FIND, "findMostBackwards(): old_cur="
+ << old_cur << ", old_len=" << len << ", cur=" << cur);
+ dit2 = cur;
+ } while (cur != cur_begin && &cur.inset() == &inset && match(cur)
+ && (len = findAdvFinalize(dit2, match)) > old_len);
+ cur = old_cur;
+ len = old_len;
+ }
+ LYXERR(Debug::FIND, "findMostBackwards(): cur=" << cur);
+}
+
+
+/// Finds backwards
+int findBackwardsAdv(DocIterator & cur, MatchStringAdv & match) {
+ if (! cur)
+ return 0;
+ // Backup of original position
+ DocIterator cur_orig(cur);
+ DocIterator cur_begin = doc_iterator_begin(cur.buffer());
+ if (cur == cur_begin)
+ return 0;
+ bool found_match;
+ bool pit_changed = false;
+ found_match = false;
+ do {
+ cur.pos() = 0;
+ found_match = match(cur, -1, false);
+
+ if (found_match) {
+ if (pit_changed)
+ cur.pos() = cur.lastpos();
+ else
+ cur.pos() = cur_orig.pos();
+ LYXERR(Debug::FIND, "findBackAdv2: cur: " << cur);
+ DocIterator cur_prev_iter;
+ while (true) {
+ found_match = match(cur);
+ LYXERR(Debug::FIND, "findBackAdv3: found_match="
+ << found_match << ", cur: " << cur);
+ if (found_match) {
+ int len;
+ findMostBackwards(cur, match, len);
+ if (cur < cur_orig)
+ return len;
+ }
+ // Prevent infinite loop at begin of document
+ if (cur == cur_begin || cur == cur_prev_iter)
+ break;
+ cur_prev_iter = cur;
+ cur.backwardPos();
+ }
+ }
+ if (cur == cur_begin)
+ break;
+ if (cur.pit() > 0)
+ --cur.pit();
+ else
+ cur.backwardPos();
+ pit_changed = true;
+ } while (true);
+ return 0;
+}
+
+
+} // anonym namespace
+
+
+docstring stringifyFromForSearch(FindAndReplaceOptions const & opt,
+ DocIterator const & cur, int len)
+{
+ if (!opt.ignoreformat)
+ return latexifyFromCursor(cur, len);
+ else
+ return stringifyFromCursor(cur, len);
+}
+
+
+FindAndReplaceOptions::FindAndReplaceOptions(docstring const & search, bool casesensitive,
+ bool matchword, bool forward, bool expandmacros, bool ignoreformat,
+ bool regexp, docstring const & replace, bool keep_case,
+ SearchScope scope)
+ : search(search), casesensitive(casesensitive), matchword(matchword),
+ forward(forward), expandmacros(expandmacros), ignoreformat(ignoreformat),
+ regexp(regexp), replace(replace), keep_case(keep_case), scope(scope)
+{
+}
+
+
+/** Checks if the supplied character is lower-case */
+static bool isLowerCase(char_type ch) {
+ return lowercase(ch) == ch;
+}
+
+
+/** Checks if the supplied character is upper-case */
+static bool isUpperCase(char_type ch) {
+ return uppercase(ch) == ch;
+}
+
+
+/** Check if 'len' letters following cursor are all non-lowercase */
+static bool allNonLowercase(DocIterator const & cur, int len) {
+ pos_type end_pos = cur.pos() + len;
+ for (pos_type pos = cur.pos(); pos != end_pos; ++pos)
+ if (isLowerCase(cur.paragraph().getChar(pos)))
+ return false;
+ return true;
+}
+
+
+/** Check if first letter is upper case and second one is lower case */
+static bool firstUppercase(DocIterator const & cur) {
+ char_type ch1, ch2;
+ if (cur.pos() >= cur.lastpos() - 1) {
+ LYXERR(Debug::FIND, "No upper-case at cur: " << cur);
+ return false;
+ }
+ ch1 = cur.paragraph().getChar(cur.pos());
+ ch2 = cur.paragraph().getChar(cur.pos()+1);
+ bool result = isUpperCase(ch1) && isLowerCase(ch2);
+ LYXERR(Debug::FIND, "firstUppercase(): "
+ << "ch1=" << ch1 << "(" << char(ch1) << "), ch2="
+ << ch2 << "(" << char(ch2) << ")"
+ << ", result=" << result << ", cur=" << cur);
+ return result;
+}
+
+
+/** Make first letter of supplied buffer upper-case, and the rest lower-case.
+ **
+ ** \fixme What to do with possible further paragraphs in replace buffer ?
+ **/
+static void changeFirstCase(Buffer & buffer, TextCase first_case, TextCase others_case) {
+ ParagraphList::iterator pit = buffer.paragraphs().begin();
+ pos_type right = pos_type(1);
+ pit->changeCase(buffer.params(), pos_type(0), right, first_case);
+ right = pit->size() + 1;
+ pit->changeCase(buffer.params(), right, right, others_case);
+}
+
+
+/// Perform a FindAdv operation.
+bool findAdv(BufferView * bv, FindAndReplaceOptions const & opt)
+{
+ DocIterator cur = bv->cursor();
+ int match_len = 0;
+
+ if (opt.search.empty()) {
+ bv->message(_("Search text is empty!"));
+ return false;
+ }
+
+ MatchStringAdv matchAdv(bv->buffer(), opt);
+ try {
+ if (opt.forward)
+ match_len = findForwardAdv(cur, matchAdv);
+ else
+ match_len = findBackwardsAdv(cur, matchAdv);
+ } catch (...) {
+ // This may only be raised by boost::regex()
+ bv->message(_("Invalid regular expression!"));
+ return false;
+ }
+
+ if (match_len == 0) {
+ bv->message(_("Match not found!"));
+ return false;
+ }
+
+ LYXERR(Debug::FIND, "Putting selection at buf=" << matchAdv.p_buf
+ << "cur=" << cur << " with len: " << match_len);
+
+ bv->putSelectionAt(cur, match_len, ! opt.forward);
+ if (opt.replace == docstring(from_utf8(LYX_FR_NULL_STRING))) {
+ bv->message(_("Match found!"));
+ } else {
+ string lyx = to_utf8(opt.replace);
+ // FIXME: Seems so stupid to me to rebuild a buffer here,
+ // when we already have one (replace_work_area_.buffer())
+ Buffer repl_buffer("", false);
+ repl_buffer.setUnnamed(true);
+ if (repl_buffer.readString(lyx)) {
+ if (opt.keep_case && match_len >= 2) {
+ if (cur.inTexted()) {
+ if (firstUppercase(cur))
+ changeFirstCase(repl_buffer, text_uppercase, text_lowercase);
+ else if (allNonLowercase(cur, match_len))
+ changeFirstCase(repl_buffer, text_uppercase, text_uppercase);
+ }
+ }
+ cap::cutSelection(bv->cursor(), false, false);
+ if (! cur.inMathed()) {
+ LYXERR(Debug::FIND, "Replacing by pasteParagraphList()ing repl_buffer");
+ cap::pasteParagraphList(bv->cursor(), repl_buffer.paragraphs(),
+ repl_buffer.params().documentClassPtr(),
+ bv->buffer().errorList("Paste"));
+ } else {
+ odocstringstream ods;
+ OutputParams runparams(&repl_buffer.params().encoding());
+ runparams.nice = false;
+ runparams.flavor = OutputParams::LATEX;
+ runparams.linelen = 8000; //lyxrc.plaintext_linelen;
+ runparams.dryrun = true;
+ TexRow texrow;
+ TeXOnePar(repl_buffer, repl_buffer.text(),
+ repl_buffer.paragraphs().begin(), ods, texrow, runparams);
+ //repl_buffer.getSourceCode(ods, 0, repl_buffer.paragraphs().size(), false);
+ docstring repl_latex = ods.str();
+ LYXERR(Debug::FIND, "Latexified replace_buffer: '" << repl_latex << "'");
+ string s;
+ regex_replace(to_utf8(repl_latex), s, "\\$(.*)\\$", "$1");
+ regex_replace(s, s, "\\\\\\[(.*)\\\\\\]", "$1");
+ repl_latex = from_utf8(s);
+ LYXERR(Debug::FIND, "Replacing by niceInsert()ing latex: '" << repl_latex << "'");
+ bv->cursor().niceInsert(repl_latex);
+ }
+ bv->putSelectionAt(cur, repl_buffer.paragraphs().begin()->size(), ! opt.forward);
+ bv->message(_("Match found and replaced !"));
+ } else
+ LASSERT(false, /**/);
+ }
+
+ return true;
+}
+
+
+ostringstream & operator<<(ostringstream & os, lyx::FindAndReplaceOptions const & opt)
+{
+ os << to_utf8(opt.search) << "\nEOSS\n"
+ << opt.casesensitive << ' '
+ << opt.matchword << ' '
+ << opt.forward << ' '
+ << opt.expandmacros << ' '
+ << opt.ignoreformat << ' '
+ << opt.regexp << ' '
+ << to_utf8(opt.replace) << "\nEOSS\n"
+ << opt.keep_case << ' '
+ << int(opt.scope);
+
+ LYXERR(Debug::FIND, "built: " << os.str());
+
+ return os;
+}
+
+istringstream & operator>>(istringstream & is, lyx::FindAndReplaceOptions & opt)
+{
+ LYXERR(Debug::FIND, "parsing");
+ string s;
+ string line;
+ getline(is, line);
+ while (line != "EOSS") {
+ if (! s.empty())
+ s = s + "\n";
+ s = s + line;
+ if (is.eof()) // Tolerate malformed request
+ break;
+ getline(is, line);
+ }
+ LYXERR(Debug::FIND, "searching for: '" << s << "'");
+ opt.search = from_utf8(s);
+ is >> opt.casesensitive >> opt.matchword >> opt.forward >> opt.expandmacros >> opt.ignoreformat >> opt.regexp;
+ is.get(); // Waste space before replace string
+ s = "";
+ getline(is, line);
+ while (line != "EOSS") {
+ if (! s.empty())
+ s = s + "\n";
+ s = s + line;
+ if (is.eof()) // Tolerate malformed request
+ break;
+ getline(is, line);
+ }
+ is >> opt.keep_case;
+ int i;
+ is >> i;
+ opt.scope = FindAndReplaceOptions::SearchScope(i);
+ LYXERR(Debug::FIND, "parsed: " << opt.casesensitive << ' ' << opt.matchword << ' ' << opt.forward << ' '
+ << opt.expandmacros << ' ' << opt.ignoreformat << ' ' << opt.regexp << ' ' << opt.keep_case);
+ LYXERR(Debug::FIND, "replacing with: '" << s << "'");
+ opt.replace = from_utf8(s);
+ return is;
+}
+