* \author John Levon
* \author Jürgen Vigna
* \author Alfredo Braunstein
+ * \author Tommaso Cucinotta
*
* Full author contact details are available in file CREDITS.
*/
#include "lyxfind.h"
#include "Buffer.h"
-#include "BufferParams.h"
-#include "Cursor.h"
-#include "CutAndPaste.h"
#include "buffer_funcs.h"
+#include "BufferParams.h"
+#include "BufferView.h"
#include "BufferView.h"
#include "Changes.h"
+#include "Cursor.h"
+#include "CutAndPaste.h"
#include "FuncRequest.h"
-#include "Text.h"
+#include "OutputParams.h"
+#include "output_latex.h"
#include "Paragraph.h"
#include "ParIterator.h"
+#include "TexRow.h"
+#include "Text.h"
+
+#include "mathed/InsetMath.h"
+#include "mathed/InsetMathGrid.h"
+#include "mathed/InsetMathHull.h"
+#include "mathed/MathStream.h"
#include "frontends/alert.h"
#include "support/gettext.h"
#include "support/lstrings.h"
+#include <boost/regex.hpp>
+
using namespace std;
using namespace lyx::support;
return false;
docstring var;
howto = split(howto, var, ' ');
- return (var == "1");
+ return var == "1";
}
return true;
}
+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::DEBUG, "Escaping: '" << s << "'");
+ Escapes::const_iterator it;
+ for (it = escape_map.begin(); it != escape_map.end(); ++it) {
+// LYXERR(Debug::DEBUG, "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::DEBUG, "After escape: " << s);
+ pos += it->second.length();
+// LYXERR(Debug::DEBUG, "pos: " << pos);
+ }
+ }
+ LYXERR(Debug::DEBUG, "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)
+{
+ BOOST_ASSERT(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 \regex{} 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::DEBUG, "new_pos: " << new_pos);
+ string t = apply_escapes(s.substr(pos, new_pos - pos), get_lyx_unescapes());
+ LYXERR(Debug::DEBUG, "t : " << t);
+ t = apply_escapes(t, get_regexp_escapes());
+ s.replace(pos, new_pos - pos, t);
+ new_pos = pos + t.size();
+ LYXERR(Debug::DEBUG, "Regexp after escaping: " << s);
+ LYXERR(Debug::DEBUG, "new_pos: " << new_pos);
+ if (new_pos == s.size())
+ break;
+ size_t end_pos = find_matching_brace(s, new_pos + 7);
+ LYXERR(Debug::DEBUG, "end_pos: " << end_pos);
+ t = apply_escapes(s.substr(new_pos + 8, end_pos - (new_pos + 8)), get_lyx_unescapes());
+ LYXERR(Debug::DEBUG, "t : " << t);
+ if (end_pos == s.size()) {
+ s.replace(new_pos, end_pos - new_pos, t);
+ pos = s.size();
+ LYXERR(Debug::DEBUG, "Regexp after \\regexp{} removal: " << s);
+ break;
+ }
+ s.replace(new_pos, end_pos + 1 - new_pos, t);
+ LYXERR(Debug::DEBUG, "Regexp after \\regexp{} removal: " << s);
+ pos = new_pos + t.size();
+ LYXERR(Debug::DEBUG, "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::DEBUG, "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::DEBUG, "Found unmatched closed brace");
+ return false;
+ } else
+ --open_pars;
+ }
+ }
+ if (open_pars != unmatched) {
+ LYXERR(Debug::DEBUG, "Found " << open_pars << " instead of " << unmatched << " unmatched open braces at the end of count");
+ return false;
+ }
+ LYXERR(Debug::DEBUG, "Braces match as expected");
+ return true;
+}
+
+/** The class performing a match between a position in the document and the FindAdvOptions.
+ **
+ ** @todo The user-entered regexp expression(s) should be enclosed within something like \regexp{},
+ ** to be written by a dedicated Inset, so to avoid escaping it in escape_for_regex().
+ **/
+class MatchStringAdv {
+public:
+ MatchStringAdv(lyx::Buffer const & buf, FindAdvOptions 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.
+ **
+ ** @return
+ ** The length of the matching text, or zero if no match was found.
+ **/
+ int operator()(DocIterator const & cur, int len = -1) const;
+
+public:
+ /// buffer
+ lyx::Buffer const & buf;
+ /// options
+ FindAdvOptions 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;
+ // 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 const & buf, FindAdvOptions const & opt)
+ : 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::DEBUG, "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, "(.*[^\\\\]) ?\\}\\'", "$1")) {
+ ++open_braces;
+ continue;
+ }
+ break;
+ } while (true);
+ LYXERR(Debug::DEBUG, "Open braces: " << open_braces);
+ BOOST_ASSERT(braces_match(par_as_string.begin(), par_as_string.end(), open_braces));
+ LYXERR(Debug::DEBUG, "Built MatchStringAdv object: par_as_string = '" << par_as_string << "'");
+ } else {
+ par_as_string = escape_for_regex(par_as_string);
+ // Insert (.*?) before trailing closure of math, macros and environments, so to catch parts of them.
+ LYXERR(Debug::DEBUG, "par_as_string now is '" << par_as_string << "'");
+ if (
+ // Insert .* before trailing '\$' ('$' 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::DEBUG, "par_as_string now is '" << par_as_string << "'");
+ LYXERR(Debug::DEBUG, "Open braces: " << open_braces);
+ LYXERR(Debug::DEBUG, "Close .*? : " << close_wildcards);
+ BOOST_ASSERT(braces_match(par_as_string.begin(), par_as_string.end(), open_braces));
+ // Entered regexp must match at begin of searched string buffer
+ par_as_string = string("\\`") + par_as_string;
+ LYXERR(Debug::DEBUG, "Replaced text (to be used as regex): " << par_as_string);
+ regexp = boost::regex(par_as_string);
+ }
+}
+
+int MatchStringAdv::operator()(DocIterator const & cur, int len) const
+{
+ docstring docstr = stringifyFromForSearch(opt, buf, cur, len);
+ LYXERR(Debug::DEBUG, "Matching against '" << lyx::to_utf8(docstr) << "'");
+ string str = normalize(docstr);
+ LYXERR(Debug::DEBUG, "After normalization: '" << str << "'");
+ if (! opt.regexp) {
+ if (str.substr(0, par_as_string.size()) == par_as_string)
+ return par_as_string.size();
+ } else {
+ // Try all possible regexp matches, until one that verifies the braces match test is found
+ boost::sregex_iterator re_it(str.begin(), str.end(), 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
+ while (regex_replace(t, t, "\\\\[a-zA-Z_]+(\\{\\})+", ""))
+ ;
+ return t;
+}
+
+
+docstring stringifyFromCursor(DocIterator const & cur, int len)
+{
+ LYXERR(Debug::DEBUG, "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
+ return par.asString(cur.pos(), ( len == -1 || cur.pos() + len > int(par.size()) ) ? int(par.size()) : cur.pos() + len, AS_STR_INSETS);
+ } 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::DEBUG, "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(Buffer const & buf, DocIterator const & cur, int len)
+{
+ LYXERR(Debug::DEBUG, "Latexifying with len=" << len << " from cursor at pos: " << cur);
+ LYXERR(Debug::DEBUG, " with cur.lastpost=" << cur.lastpos() << ", cur.lastrow="
+ << cur.lastrow() << ", cur.lastcol=" << cur.lastcol());
+ BOOST_ASSERT(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);
+ TeXOnePar(buf, *cur.innerText(), pit, ods, texrow, runparams, string(),
+ cur.pos(), ( len == -1 || cur.pos() + len > int(pit->size()) ) ? -1 : cur.pos() + len);
+ LYXERR(Debug::DEBUG, "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];
+ if (cs.asInsetMath() && cs.asInsetMath() && cs.asInsetMath()->asHullInset()) {
+ WriteStream ws(ods);
+ cs.asInsetMath()->asHullInset()->footer_write(ws);
+ break;
+ }
+ }
+ LYXERR(Debug::DEBUG, "Latexified math: '" << lyx::to_utf8(ods.str()) << "'");
+ } else {
+ LYXERR(Debug::DEBUG, "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;
+ do {
+ LYXERR(Debug::DEBUG, "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;
+ BOOST_ASSERT(match(cur) > 0);
+ LYXERR(Debug::DEBUG, "Ok");
+
+ // Compute the match length
+ int len = 1;
+ LYXERR(Debug::DEBUG, "verifying unmatch with len = " << len);
+ while (cur.pos() + len <= cur.lastpos() && match(cur, len) == 0) {
+ ++len;
+ LYXERR(Debug::DEBUG, "verifying unmatch with len = " << len);
+ }
+ int old_len = match(cur, len); // Length of matched text (different from len param)
+ int new_len;
+ // Greedy behaviour while matching regexps
+ while ((new_len = match(cur, len + 1)) > old_len) {
+ ++len;
+ old_len = new_len;
+ LYXERR(Debug::DEBUG, "verifying match with len = " << len);
+ }
+ return len;
+}
+
+/// Finds forward
+int findForwardAdv(DocIterator & cur, MatchStringAdv const & match)
+{
+ if (! cur)
+ return 0;
+ for (; cur; cur.forwardPos()) {
+// odocstringstream ods;
+// ods << _("Searching ... ") << (cur.bottom().lastpit() - cur.bottom().pit()) * 100 / total;
+// cur.message(ods.str());
+ if (match(cur))
+ return findAdvFinalize(cur, match);
+ }
+ return 0;
+}
+
+/// Finds backwards
+int findBackwardsAdv(DocIterator & cur, MatchStringAdv const & match) {
+// if (cur.pos() > 0 || cur.depth() > 0)
+// cur.backwardPos();
+ DocIterator cur_orig(cur);
+ if (match(cur_orig))
+ findAdvFinalize(cur_orig, match);
+// int total = cur.bottom().pit() + 1;
+ for (; cur; cur.backwardPos()) {
+// odocstringstream ods;
+// ods << _("Searching ... ") << (total - cur.bottom().pit()) * 100 / total;
+// cur.message(ods.str());
+ if (match(cur)) {
+ // Find the most backward consecutive match within same paragraph while searching backwards.
+ int pit = cur.pit();
+ int old_len;
+ DocIterator old_cur;
+ int len = findAdvFinalize(cur, match);
+ do {
+ old_cur = cur;
+ old_len = len;
+ cur.backwardPos();
+ LYXERR(Debug::DEBUG, "old_cur: " << old_cur << ", old_len=" << len << ", cur: " << cur);
+ } while (cur && cur.pit() == pit && match(cur)
+ && (len = findAdvFinalize(cur, match)) > old_len);
+ cur = old_cur;
+ len = old_len;
+ LYXERR(Debug::DEBUG, "cur_orig : " << cur_orig);
+ LYXERR(Debug::DEBUG, "cur : " << cur);
+ if (cur != cur_orig)
+ return len;
+ }
+ }
+ return 0;
+}
+
+} // anonym namespace
+
+
+docstring stringifyFromForSearch(FindAdvOptions const & opt, Buffer const & buf,
+ DocIterator const & cur, int len)
+{
+ if (! opt.ignoreformat)
+ return latexifyFromCursor(buf, cur, len);
+ else
+ return stringifyFromCursor(cur, len);
+}
+
+
+lyx::FindAdvOptions::FindAdvOptions(docstring const & search, bool casesensitive,
+ bool matchword, bool forward, bool expandmacros, bool ignoreformat,
+ bool regexp)
+ : search(search), casesensitive(casesensitive), matchword(matchword),
+ forward(forward), expandmacros(expandmacros), ignoreformat(ignoreformat),
+ regexp(regexp)
+{
+}
+
+/// Perform a FindAdv operation.
+bool findAdv(BufferView * bv, FindAdvOptions const & opt)
+{
+ DocIterator cur = bv->cursor();
+ int match_len = 0;
+
+ if (opt.search.empty()) {
+ bv->message(_("Search text is empty !"));
+ return false;
+ }
+// if (! bv->buffer()) {
+// bv->message(_("No open document !"));
+// return false;
+// }
+
+ try {
+ MatchStringAdv const matchAdv(bv->buffer(), opt);
+ 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::DEBUG, "Putting selection at " << cur << " with len: " << match_len);
+ bv->putSelectionAt(cur, match_len, ! opt.forward);
+ bv->message(_("Match found !"));
+ //bv->update();
+
+ return true;
+}
+
+
+void findAdv(BufferView * bv, FuncRequest const & ev)
+{
+ if (!bv || ev.action != LFUN_WORD_FINDADV)
+ return;
+
+ FindAdvOptions opt;
+ istringstream iss(to_utf8(ev.argument()));
+ iss >> opt;
+ findAdv(bv, opt);
+}
+
+
+ostringstream & operator<<(ostringstream & os, lyx::FindAdvOptions const & opt)
+{
+ os << to_utf8(opt.search) << "\nEOSS\n"
+ << opt.casesensitive << ' '
+ << opt.matchword << ' '
+ << opt.forward << ' '
+ << opt.expandmacros << ' '
+ << opt.ignoreformat << ' '
+ << opt.regexp;
+
+ LYXERR(Debug::DEBUG, "built: " << os.str());
+
+ return os;
+}
+
+istringstream & operator>>(istringstream & is, lyx::FindAdvOptions & opt)
+{
+ LYXERR(Debug::DEBUG, "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::DEBUG, "searching for: '" << s << "'");
+ opt.search = from_utf8(s);
+ is >> opt.casesensitive >> opt.matchword >> opt.forward >> opt.expandmacros >> opt.ignoreformat >> opt.regexp;
+ LYXERR(Debug::DEBUG, "parsed: " << opt.casesensitive << ' ' << opt.matchword << ' ' << opt.forward << ' '
+ << opt.expandmacros << ' ' << opt.ignoreformat << ' ' << opt.regexp);
+ return is;
+}
+
} // lyx namespace
projects / features.git / commitdiff