lyx_mirror/src/lyxfind.cpp
Jean-Marc Lasgouttes 0d4bc37fe6 Fix bug #3199: change-next may leave empty lines behind
Using Cursor::setCursor or even BufferView::setCursor is often a bad
idea since it does not run DEPM. In this case (and other cases in
f&replace code) it is better to use BufferView::mouseSetCursor (which
should maybe be renamed...).
2013-05-08 12:28:56 +02:00

1505 lines
47 KiB
C++

/**
* \file lyxfind.cpp
* This file is part of LyX, the document processor.
* License details can be found in the file COPYING.
*
* \author Lars Gullik Bjønnes
* \author John Levon
* \author Jürgen Vigna
* \author Alfredo Braunstein
* \author Tommaso Cucinotta
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "lyxfind.h"
#include "Buffer.h"
#include "buffer_funcs.h"
#include "BufferList.h"
#include "BufferParams.h"
#include "BufferView.h"
#include "Changes.h"
#include "Cursor.h"
#include "CutAndPaste.h"
#include "FuncRequest.h"
#include "LyX.h"
#include "output_latex.h"
#include "OutputParams.h"
#include "Paragraph.h"
#include "ParIterator.h"
#include "TexRow.h"
#include "Text.h"
#include "frontends/Application.h"
#include "frontends/alert.h"
#include "mathed/InsetMath.h"
#include "mathed/InsetMathGrid.h"
#include "mathed/InsetMathHull.h"
#include "mathed/MathStream.h"
#include "mathed/MathSupport.h"
#include "support/convert.h"
#include "support/debug.h"
#include "support/docstream.h"
#include "support/gettext.h"
#include "support/lassert.h"
#include "support/lstrings.h"
#include "support/regex.h"
#include <boost/next_prior.hpp>
using namespace std;
using namespace lyx::support;
namespace lyx {
namespace {
bool parse_bool(docstring & howto)
{
if (howto.empty())
return false;
docstring var;
howto = split(howto, var, ' ');
return var == "1";
}
class MatchString : public binary_function<Paragraph, pos_type, int>
{
public:
MatchString(docstring const & str, bool cs, bool mw)
: str(str), case_sens(cs), whole_words(mw)
{}
// returns true if the specified string is at the specified position
// del specifies whether deleted strings in ct mode will be considered
int operator()(Paragraph const & par, pos_type pos, bool del = true) const
{
return par.find(str, case_sens, whole_words, pos, del);
}
private:
// search string
docstring str;
// case sensitive
bool case_sens;
// match whole words only
bool whole_words;
};
int findForward(DocIterator & cur, MatchString const & match,
bool find_del = true)
{
for (; cur; cur.forwardChar())
if (cur.inTexted()) {
int len = match(cur.paragraph(), cur.pos(), find_del);
if (len > 0)
return len;
}
return 0;
}
int findBackwards(DocIterator & cur, MatchString const & match,
bool find_del = true)
{
while (cur) {
cur.backwardChar();
if (cur.inTexted()) {
int len = match(cur.paragraph(), cur.pos(), find_del);
if (len > 0)
return len;
}
}
return 0;
}
bool findChange(DocIterator & cur, bool next)
{
if (!next)
cur.backwardPos();
for (; cur; next ? cur.forwardPos() : cur.backwardPos())
if (cur.inTexted() && cur.paragraph().isChanged(cur.pos())) {
if (!next)
// if we search backwards, take a step forward
// to correctly set the anchor
cur.forwardPos();
return true;
}
return false;
}
bool searchAllowed(docstring const & str)
{
if (str.empty()) {
frontend::Alert::error(_("Search error"), _("Search string is empty"));
return false;
}
return true;
}
bool findOne(BufferView * bv, docstring const & searchstr,
bool case_sens, bool whole, bool forward, bool find_del = true)
{
if (!searchAllowed(searchstr))
return false;
DocIterator cur = forward
? bv->cursor().selectionEnd()
: bv->cursor().selectionBegin();
MatchString const match(searchstr, case_sens, whole);
int match_len = forward ? findForward(cur, match, find_del) :
findBackwards(cur, match, find_del);
if (match_len > 0)
bv->putSelectionAt(cur, match_len, !forward);
return match_len > 0;
}
int replaceAll(BufferView * bv,
docstring const & searchstr, docstring const & replacestr,
bool case_sens, bool whole)
{
Buffer & buf = bv->buffer();
if (!searchAllowed(searchstr) || buf.isReadonly())
return 0;
DocIterator cur_orig(bv->cursor());
MatchString const match(searchstr, case_sens, whole);
int num = 0;
int const rsize = replacestr.size();
int const ssize = searchstr.size();
Cursor cur(*bv);
cur.setCursor(doc_iterator_begin(&buf));
int match_len = findForward(cur, match, false);
while (match_len > 0) {
// Backup current cursor position and font.
pos_type const pos = cur.pos();
Font const font = cur.paragraph().getFontSettings(buf.params(), pos);
cur.recordUndo();
int striked = ssize - cur.paragraph().eraseChars(pos, pos + match_len,
buf.params().trackChanges);
cur.paragraph().insert(pos, replacestr, font,
Change(buf.params().trackChanges ?
Change::INSERTED : Change::UNCHANGED));
for (int i = 0; i < rsize + striked; ++i)
cur.forwardChar();
++num;
match_len = findForward(cur, match, false);
}
bv->putSelectionAt(doc_iterator_begin(&buf), 0, false);
cur_orig.fixIfBroken();
bv->setCursor(cur_orig);
return num;
}
// the idea here is that we are going to replace the string that
// is selected IF it is the search string.
// if there is a selection, but it is not the search string, then
// we basically ignore it. (FIXME We ought to replace only within
// the selection.)
// if there is no selection, then:
// (i) if some search string has been provided, then we find it.
// (think of how the dialog works when you hit "replace" the
// first time.)
// (ii) if no search string has been provided, then we treat the
// word the cursor is in as the search string. (why? i have no
// idea.) but this only works in text?
//
// returns the number of replacements made (one, if any) and
// whether anything at all was done.
pair<bool, int> replaceOne(BufferView * bv, docstring searchstr,
docstring const & replacestr, bool case_sens,
bool whole, bool forward, bool findnext)
{
Cursor & cur = bv->cursor();
if (!cur.selection()) {
// no selection, non-empty search string: find it
if (!searchstr.empty()) {
findOne(bv, searchstr, case_sens, whole, forward);
return pair<bool, int>(true, 0);
}
// empty search string
if (!cur.inTexted())
// bail in math
return pair<bool, int>(false, 0);
// select current word and treat it as the search string
cur.innerText()->selectWord(cur, WHOLE_WORD);
searchstr = cur.selectionAsString(false);
}
// if we still don't have a search string, report the error
// and abort.
if (!searchAllowed(searchstr))
return pair<bool, int>(false, 0);
bool have_selection = cur.selection();
docstring const selected = cur.selectionAsString(false);
bool match =
case_sens ? searchstr == selected
: compare_no_case(searchstr, selected) == 0;
// no selection or current selection is not search word:
// just find the search word
if (!have_selection || !match) {
findOne(bv, searchstr, case_sens, whole, forward);
return pair<bool, int>(true, 0);
}
// we're now actually ready to replace. if the buffer is
// read-only, we can't, though.
if (bv->buffer().isReadonly())
return pair<bool, int>(false, 0);
cap::replaceSelectionWithString(cur, replacestr);
if (forward) {
cur.pos() += replacestr.length();
LASSERT(cur.pos() <= cur.lastpos(), /* */);
}
if (findnext)
findOne(bv, searchstr, case_sens, whole, forward, false);
return pair<bool, int>(true, 1);
}
} // namespace anon
docstring const find2string(docstring const & search,
bool casesensitive, bool matchword, bool forward)
{
odocstringstream ss;
ss << search << '\n'
<< int(casesensitive) << ' '
<< int(matchword) << ' '
<< int(forward);
return ss.str();
}
docstring const replace2string(docstring const & replace,
docstring const & search, bool casesensitive, bool matchword,
bool all, bool forward, bool findnext)
{
odocstringstream ss;
ss << replace << '\n'
<< search << '\n'
<< int(casesensitive) << ' '
<< int(matchword) << ' '
<< int(all) << ' '
<< int(forward) << ' '
<< int(findnext);
return ss.str();
}
bool lyxfind(BufferView * bv, FuncRequest const & ev)
{
if (!bv || ev.action() != LFUN_WORD_FIND)
return false;
//lyxerr << "find called, cmd: " << ev << endl;
// data is of the form
// "<search>
// <casesensitive> <matchword> <forward>"
docstring search;
docstring howto = split(ev.argument(), search, '\n');
bool casesensitive = parse_bool(howto);
bool matchword = parse_bool(howto);
bool forward = parse_bool(howto);
return findOne(bv, search, casesensitive, matchword, forward);
}
bool lyxreplace(BufferView * bv,
FuncRequest const & ev, bool has_deleted)
{
if (!bv || ev.action() != LFUN_WORD_REPLACE)
return false;
// data is of the form
// "<search>
// <replace>
// <casesensitive> <matchword> <all> <forward> <findnext>"
docstring search;
docstring rplc;
docstring howto = split(ev.argument(), rplc, '\n');
howto = split(howto, search, '\n');
bool casesensitive = parse_bool(howto);
bool matchword = parse_bool(howto);
bool all = parse_bool(howto);
bool forward = parse_bool(howto);
bool findnext = howto.empty() ? true : parse_bool(howto);
int replace_count = 0;
bool update = false;
if (!has_deleted) {
if (all) {
replace_count = replaceAll(bv, search, rplc, casesensitive, matchword);
update = replace_count > 0;
} else {
pair<bool, int> rv =
replaceOne(bv, search, rplc, casesensitive, matchword, forward, findnext);
update = rv.first;
replace_count = rv.second;
}
Buffer const & buf = bv->buffer();
if (!update) {
// emit message signal.
buf.message(_("String not found!"));
} else {
if (replace_count == 0) {
buf.message(_("String found."));
} else if (replace_count == 1) {
buf.message(_("String has been replaced."));
} else {
docstring const str =
bformat(_("%1$d strings have been replaced."), replace_count);
buf.message(str);
}
}
} else if (findnext) {
// if we have deleted characters, we do not replace at all, but
// rather search for the next occurence
if (findOne(bv, search, casesensitive, matchword, forward))
update = true;
else
bv->message(_("String not found!"));
}
return update;
}
bool findNextChange(BufferView * bv)
{
return findChange(bv, true);
}
bool findPreviousChange(BufferView * bv)
{
return findChange(bv, false);
}
bool findChange(BufferView * bv, bool next)
{
Cursor cur(*bv);
cur.setCursor(next ? bv->cursor().selectionEnd()
: bv->cursor().selectionBegin());
// Are we within a change ? Then first search forward (backward),
// clear the selection and search the other way around (see the end
// of this function). This will avoid changes to be selected half.
bool search_both_sides = false;
Cursor tmpcur = cur;
// Leave math first
while (tmpcur.inMathed())
tmpcur.pop_back();
Change change_next_pos
= tmpcur.paragraph().lookupChange(tmpcur.pos());
if (change_next_pos.changed() && cur.inMathed()) {
cur = tmpcur;
search_both_sides = true;
} else if (tmpcur.pos() > 0 && tmpcur.inTexted()) {
Change change_prev_pos
= tmpcur.paragraph().lookupChange(tmpcur.pos() - 1);
if (change_next_pos.isSimilarTo(change_prev_pos))
search_both_sides = true;
}
if (!findChange(cur, next))
return false;
bv->mouseSetCursor(cur, false);
CursorSlice & tip = cur.top();
if (!next)
// take a step into the change
tip.backwardPos();
Change orig_change = tip.paragraph().lookupChange(tip.pos());
if (next) {
for (; !tip.at_end(); tip.forwardPos()) {
Change change = tip.paragraph().lookupChange(tip.pos());
if (!change.isSimilarTo(orig_change))
break;
}
} else {
for (; !tip.at_begin();) {
tip.backwardPos();
Change change = tip.paragraph().lookupChange(tip.pos());
if (!change.isSimilarTo(orig_change)) {
// take a step forward to correctly set the selection
tip.forwardPos();
break;
}
}
}
if (!search_both_sides) {
// Now set the selection.
bv->mouseSetCursor(cur, true);
} else {
bv->mouseSetCursor(cur, false);
findChange(bv, !next);
}
return true;
}
namespace {
typedef vector<pair<string, string> > Escapes;
/// A map of symbols and their escaped equivalent needed within a regex.
/// @note Beware of order
Escapes const & get_regexp_escapes()
{
static Escapes escape_map;
if (escape_map.empty()) {
escape_map.push_back(pair<string, string>("$", "_x_$"));
escape_map.push_back(pair<string, string>("{", "_x_{"));
escape_map.push_back(pair<string, string>("}", "_x_}"));
escape_map.push_back(pair<string, string>("[", "_x_["));
escape_map.push_back(pair<string, string>("]", "_x_]"));
escape_map.push_back(pair<string, string>("(", "_x_("));
escape_map.push_back(pair<string, string>(")", "_x_)"));
escape_map.push_back(pair<string, string>("+", "_x_+"));
escape_map.push_back(pair<string, string>("*", "_x_*"));
escape_map.push_back(pair<string, string>(".", "_x_."));
escape_map.push_back(pair<string, string>("\\", "(?:\\\\|\\\\backslash)"));
escape_map.push_back(pair<string, string>("~", "(?:\\\\textasciitilde|\\\\sim)"));
escape_map.push_back(pair<string, string>("^", "(?:\\^|\\\\textasciicircum\\{\\}|\\\\mathcircumflex)"));
escape_map.push_back(pair<string, string>("_x_", "\\"));
}
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>("\\mathcircumflex ", "^"));
escape_map.push_back(pair<string, string>("\\mathcircumflex", "^"));
escape_map.push_back(pair<string, string>("\\backslash ", "\\"));
escape_map.push_back(pair<string, string>("\\backslash", "\\"));
escape_map.push_back(pair<string, string>("\\\\{", "_x_<"));
escape_map.push_back(pair<string, string>("\\\\}", "_x_>"));
escape_map.push_back(pair<string, string>("\\sim ", "~"));
escape_map.push_back(pair<string, string>("\\sim", "~"));
}
return escape_map;
}
/// A map of escapes turning a regexp matching text to one matching latex.
Escapes const & get_regexp_latex_escapes() {
static Escapes escape_map;
if (escape_map.empty()) {
escape_map.push_back(pair<string, string>("\\\\", "(?:\\\\\\\\|\\\\backslash|\\\\textbackslash\\{\\})"));
escape_map.push_back(pair<string, string>("(<?!\\\\\\\\textbackslash)\\{", "\\\\\\{"));
escape_map.push_back(pair<string, string>("(<?!\\\\\\\\textbackslash\\\\\\{)\\}", "\\\\\\}"));
escape_map.push_back(pair<string, string>("\\[", "\\{\\[\\}"));
escape_map.push_back(pair<string, string>("\\]", "\\{\\]\\}"));
escape_map.push_back(pair<string, string>("\\^", "(?:\\^|\\\\textasciicircum\\{\\}|\\\\mathcircumflex)"));
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.
**/
static 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_lyx_unescapes() only (i.e., preserve regexp semantics of the string),
/// while outside apply get_lyx_unescapes()+get_regexp_escapes().
/// If match_latex is true, then apply regexp_latex_escapes() to \regexp{} contents as well.
string escape_for_regex(string s, bool match_latex)
{
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 [lyx]: " << t);
t = apply_escapes(t, get_regexp_escapes());
LYXERR(Debug::FIND, "t [rxp]: " << t);
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 = s.find("\\endregexp{}}", new_pos + 8); // find_matching_brace(s, new_pos + 7);
LYXERR(Debug::FIND, "end_pos: " << end_pos);
t = s.substr(new_pos + 8, end_pos - (new_pos + 8));
LYXERR(Debug::FIND, "t in regexp : " << t);
t = apply_escapes(t, get_lyx_unescapes());
LYXERR(Debug::FIND, "t in regexp [lyx]: " << t);
if (match_latex) {
t = apply_escapes(t, get_regexp_latex_escapes());
LYXERR(Debug::FIND, "t in regexp [ltx]: " << 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 + 13 - new_pos, t);
LYXERR(Debug::FIND, "Regexp after \\regexp{...\\endregexp{}} removal: " << s);
pos = new_pos + t.size();
LYXERR(Debug::FIND, "pos: " << pos);
}
return s;
}
/// Wrapper for lyx::regex_replace with simpler interface
bool regex_replace(string const & s, string & t, string const & searchstr,
string const & replacestr)
{
lyx::regex e(searchstr);
ostringstream oss;
ostream_iterator<char, char> it(oss);
lyx::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:
/// Auxiliary find method (does not account for opt.matchword)
int findAux(DocIterator const & cur, int len = -1, bool at_begin = true) const;
/** 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, bool hack_braces) const;
// normalized string to search
string par_as_string;
// regular expression to use for searching
lyx::regex regexp;
// same as regexp, but prefixed with a ".*"
lyx::regex regexp2;
// leading format material as string
string lead_as_string;
// par_as_string after removal of lead_as_string
string par_as_string_nolead;
// 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;
// Are we searching with regular expressions ?
bool use_regexp;
};
static docstring buffer_to_latex(Buffer & buffer)
{
OutputParams runparams(&buffer.params().encoding());
TexRow texrow;
odocstringstream ods;
otexstream os(ods, texrow);
runparams.nice = true;
runparams.flavor = OutputParams::LATEX;
runparams.linelen = 80; //lyxrc.plaintext_linelen;
// No side effect of file copying and image conversion
runparams.dryrun = true;
pit_type const endpit = buffer.paragraphs().size();
for (pit_type pit = 0; pit != endpit; ++pit) {
TeXOnePar(buffer, buffer.text(), pit, os, runparams);
LYXERR(Debug::FIND, "searchString up to here: " << ods.str());
}
return ods.str();
}
static docstring stringifySearchBuffer(Buffer & buffer, FindAndReplaceOptions const & opt) {
docstring str;
if (!opt.ignoreformat) {
str = buffer_to_latex(buffer);
} else {
OutputParams runparams(&buffer.params().encoding());
runparams.nice = true;
runparams.flavor = OutputParams::LATEX;
runparams.linelen = 100000; //lyxrc.plaintext_linelen;
runparams.dryrun = true;
for (pos_type pit = pos_type(0); pit < (pos_type)buffer.paragraphs().size(); ++pit) {
Paragraph const & par = buffer.paragraphs().at(pit);
LYXERR(Debug::FIND, "Adding to search string: '"
<< par.stringify(pos_type(0), par.size(),
AS_STR_INSETS, runparams)
<< "'");
str += par.stringify(pos_type(0), par.size(),
AS_STR_INSETS, runparams);
}
}
return str;
}
/// Return separation pos between the leading material and the rest
static size_t identifyLeading(string const & s) {
string t = s;
// @TODO Support \item[text]
while (regex_replace(t, t, "^\\\\(emph|textbf|subsubsection|subsection|section|subparagraph|paragraph|part)\\*?\\{", "")
|| regex_replace(t, t, "^\\$", "")
|| regex_replace(t, t, "^\\\\\\[ ", "")
|| regex_replace(t, t, "^\\\\item ", "")
|| regex_replace(t, t, "^\\\\begin\\{[a-zA-Z_]*\\*?\\} ", ""))
LYXERR(Debug::FIND, " after removing leading $, \\[ , \\emph{, \\textbf{, etc.: '" << t << "'");
return s.find(t);
}
// Remove trailing closure of math, macros and environments, so to catch parts of them.
static int identifyClosing(string & t) {
int open_braces = 0;
do {
LYXERR(Debug::FIND, "identifyClosing(): t now is '" << t << "'");
if (regex_replace(t, t, "(.*[^\\\\])\\$\\'", "$1"))
continue;
if (regex_replace(t, t, "(.*[^\\\\]) \\\\\\]\\'", "$1"))
continue;
if (regex_replace(t, t, "(.*[^\\\\]) \\\\end\\{[a-zA-Z_]*\\*?\\}\\'", "$1"))
continue;
if (regex_replace(t, t, "(.*[^\\\\])\\}\\'", "$1")) {
++open_braces;
continue;
}
break;
} while (true);
return open_braces;
}
MatchStringAdv::MatchStringAdv(lyx::Buffer & buf, FindAndReplaceOptions const & opt)
: p_buf(&buf), p_first_buf(&buf), opt(opt)
{
Buffer & find_buf = *theBufferList().getBuffer(FileName(to_utf8(opt.find_buf_name)), true);
docstring const & ds = stringifySearchBuffer(find_buf, opt);
use_regexp = lyx::to_utf8(ds).find("\\regexp{") != std::string::npos;
// When using regexp, braces are hacked already by escape_for_regex()
par_as_string = normalize(ds, !use_regexp);
open_braces = 0;
close_wildcards = 0;
size_t lead_size = 0;
if (!opt.ignoreformat) {
lead_size = identifyLeading(par_as_string);
lead_as_string = par_as_string.substr(0, lead_size);
par_as_string_nolead = par_as_string.substr(lead_size, par_as_string.size() - lead_size);
}
if (!use_regexp) {
open_braces = identifyClosing(par_as_string);
identifyClosing(par_as_string_nolead);
LYXERR(Debug::FIND, "Open braces: " << open_braces);
LYXERR(Debug::FIND, "Built MatchStringAdv object: par_as_string = '" << par_as_string << "'");
} else {
string lead_as_regexp;
if (lead_size > 0) {
// @todo No need to search for \regexp{} insets in leading material
lead_as_regexp = escape_for_regex(par_as_string.substr(0, lead_size), !opt.ignoreformat);
par_as_string = par_as_string_nolead;
LYXERR(Debug::FIND, "lead_as_regexp is '" << lead_as_regexp << "'");
LYXERR(Debug::FIND, "par_as_string now is '" << par_as_string << "'");
}
par_as_string = escape_for_regex(par_as_string, !opt.ignoreformat);
// Insert (.*?) before trailing closure of math, macros and environments, so to catch parts of them.
LYXERR(Debug::FIND, "par_as_string now is '" << par_as_string << "'");
if (
// Insert .* before trailing '\$' ('$' 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$3$4")
// 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);
LYXERR(Debug::FIND, "Replaced text (to be used as regex): " << par_as_string);
// If entered regexp must match at begin of searched string buffer
string regexp_str = string("\\`") + lead_as_regexp + par_as_string;
LYXERR(Debug::FIND, "Setting regexp to : '" << regexp_str << "'");
regexp = lyx::regex(regexp_str);
// If entered regexp may match wherever in searched string buffer
string regexp2_str = string("\\`.*") + lead_as_regexp + ".*" + par_as_string;
LYXERR(Debug::FIND, "Setting regexp2 to: '" << regexp2_str << "'");
regexp2 = lyx::regex(regexp2_str);
}
}
int MatchStringAdv::findAux(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, true);
LYXERR(Debug::FIND, "After normalization: '" << str << "'");
if (! use_regexp) {
LYXERR(Debug::FIND, "Searching in normal mode: par_as_string='" << par_as_string << "', str='" << str << "'");
LYXERR(Debug::FIND, "Searching in normal mode: lead_as_string='" << lead_as_string << "', par_as_string_nolead='" << par_as_string_nolead << "'");
if (at_begin) {
LYXERR(Debug::FIND, "size=" << par_as_string.size() << ", substr='" << str.substr(0, par_as_string.size()) << "'");
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_nolead);
if (pos != string::npos)
return par_as_string.size();
}
} else {
LYXERR(Debug::FIND, "Searching in regexp mode: at_begin=" << at_begin);
// Try all possible regexp matches,
//until one that verifies the braces match test is found
regex const *p_regexp = at_begin ? &regexp : &regexp2;
sregex_iterator re_it(str.begin(), str.end(), *p_regexp);
sregex_iterator re_it_end;
for (; re_it != re_it_end; ++re_it) {
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,
// except the last "padding" one inserted by lyx.
for (size_t i = 1; i < m.size() - 1; ++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;
}
int MatchStringAdv::operator()(DocIterator const & cur, int len, bool at_begin) const
{
int res = findAux(cur, len, at_begin);
LYXERR(Debug::FIND,
"res=" << res << ", at_begin=" << at_begin << ", matchword=" << opt.matchword << ", inTexted=" << cur.inTexted());
if (res == 0 || !at_begin || !opt.matchword || !cur.inTexted())
return res;
Paragraph const & par = cur.paragraph();
bool ws_left = cur.pos() > 0 ?
par.isWordSeparator(cur.pos() - 1) : true;
bool ws_right = cur.pos() + res < par.size() ?
par.isWordSeparator(cur.pos() + res) : true;
LYXERR(Debug::FIND,
"cur.pos()=" << cur.pos() << ", res=" << res
<< ", separ: " << ws_left << ", " << ws_right
<< endl);
if (ws_left && ws_right)
return res;
return 0;
}
string MatchStringAdv::normalize(docstring const & s, bool hack_braces) 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|part)(\\{\\})+", ""))
LYXERR(Debug::FIND, " further removing stale empty \\emph{}, \\textbf{} macros from: " << t);
// FIXME - check what preceeds the brace
if (hack_braces) {
if (opt.ignoreformat)
while (regex_replace(t, t, "\\{", "_x_<")
|| regex_replace(t, t, "\\}", "_x_>"))
LYXERR(Debug::FIND, "After {} replacement: '" << t << "'");
else
while (regex_replace(t, t, "\\\\\\{", "_x_<")
|| regex_replace(t, t, "\\\\\\}", "_x_>"))
LYXERR(Debug::FIND, "After {} replacement: '" << 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()) {
docstring s;
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)
s = s + asString(*it);
LYXERR(Debug::FIND, "Stringified math: '" << s << "'");
return s;
}
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.params().isLatex(), /* */);
TexRow texrow;
odocstringstream ods;
otexstream os(ods, texrow);
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 ?
pos_type endpos = cur.paragraph().size();
if (len != -1 && endpos > cur.pos() + len)
endpos = cur.pos() + len;
TeXOnePar(buf, *cur.innerText(), cur.pit(), os, 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 '$[' or others (\begin{equation}) accordingly
for (int s = cur.depth() - 1; s >= 0; --s) {
CursorSlice const & cs = cur[s];
if (cs.asInsetMath() && cs.asInsetMath() && cs.asInsetMath()->asHullInset()) {
WriteStream ws(ods);
cs.asInsetMath()->asHullInset()->header_write(ws);
break;
}
}
CursorSlice const & cs = cur.top();
MathData md = cs.cell();
MathData::const_iterator it_end = ( ( len == -1 || cs.pos() + len > int(md.size()) )
? md.end() : md.begin() + cs.pos() + len );
for (MathData::const_iterator it = md.begin() + cs.pos(); it != it_end; ++it)
ods << asString(*it);
// Retrieve the math environment type, and add '$' 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;
if (cur.pos() + len > cur.lastpos())
return 0;
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) {
LYXERR(Debug::FIND, "findForwardAdv() cur: " << cur);
int match_len = match(cur, -1, false);
LYXERR(Debug::FIND, "match_len: " << match_len);
if (match_len) {
for (; cur; cur.forwardPos()) {
LYXERR(Debug::FIND, "Advancing cur: " << cur);
int match_len = match(cur);
LYXERR(Debug::FIND, "match_len: " << match_len);
if (match_len) {
// Sometimes in finalize we understand it wasn't a match
// and we need to continue the outest loop
int len = findAdvFinalize(cur, match);
if (len > 0)
return len;
}
}
if (!cur)
return 0;
}
if (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;
}
/// Find the most backward consecutive match within same paragraph while searching backwards.
int findMostBackwards(DocIterator & cur, MatchStringAdv const & match)
{
DocIterator cur_begin = doc_iterator_begin(cur.buffer());
DocIterator tmp_cur = cur;
int len = findAdvFinalize(tmp_cur, match);
Inset & inset = cur.inset();
for (; cur != cur_begin; cur.backwardPos()) {
LYXERR(Debug::FIND, "findMostBackwards(): cur=" << cur);
DocIterator new_cur = cur;
new_cur.backwardPos();
if (new_cur == cur || &new_cur.inset() != &inset || !match(new_cur))
break;
int new_len = findAdvFinalize(new_cur, match);
if (new_len == len)
break;
len = new_len;
}
LYXERR(Debug::FIND, "findMostBackwards(): exiting with cur=" << cur);
return len;
}
/// Finds backwards
int findBackwardsAdv(DocIterator & cur, MatchStringAdv & match) {
if (! cur)
return 0;
// Backup of original position
DocIterator cur_begin = doc_iterator_begin(cur.buffer());
if (cur == cur_begin)
return 0;
cur.backwardPos();
DocIterator cur_orig(cur);
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;
do {
found_match = match(cur);
LYXERR(Debug::FIND, "findBackAdv3: found_match="
<< found_match << ", cur: " << cur);
if (found_match)
return findMostBackwards(cur, match);
// Stop if begin of document reached
if (cur == cur_begin)
break;
cur_prev_iter = cur;
cur.backwardPos();
} while (true);
}
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)
{
LASSERT(cur.pos() >= 0 && cur.pos() <= cur.lastpos(), /* */);
if (!opt.ignoreformat)
return latexifyFromCursor(cur, len);
else
return stringifyFromCursor(cur, len);
}
FindAndReplaceOptions::FindAndReplaceOptions(docstring const & find_buf_name, bool casesensitive,
bool matchword, bool forward, bool expandmacros, bool ignoreformat,
docstring const & repl_buf_name, bool keep_case,
SearchScope scope)
: find_buf_name(find_buf_name), casesensitive(casesensitive), matchword(matchword),
forward(forward), expandmacros(expandmacros), ignoreformat(ignoreformat),
repl_buf_name(repl_buf_name), keep_case(keep_case), scope(scope)
{
}
namespace {
/** 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);
}
} // anon namespace
///
static void findAdvReplace(BufferView * bv, FindAndReplaceOptions const & opt, MatchStringAdv & matchAdv)
{
Cursor & cur = bv->cursor();
if (opt.repl_buf_name == docstring())
return;
DocIterator sel_beg = cur.selectionBegin();
DocIterator sel_end = cur.selectionEnd();
if (&sel_beg.inset() != &sel_end.inset()
|| sel_beg.pit() != sel_end.pit())
return;
int sel_len = sel_end.pos() - sel_beg.pos();
LYXERR(Debug::FIND, "sel_beg: " << sel_beg << ", sel_end: " << sel_end
<< ", sel_len: " << sel_len << endl);
if (sel_len == 0)
return;
LASSERT(sel_len > 0, /**/);
if (!matchAdv(sel_beg, sel_len))
return;
// Build a copy of the replace buffer, adapted to the KeepCase option
Buffer & repl_buffer_orig = *theBufferList().getBuffer(FileName(to_utf8(opt.repl_buf_name)), true);
ostringstream oss;
repl_buffer_orig.write(oss);
string lyx = oss.str();
Buffer repl_buffer("", false);
repl_buffer.setUnnamed(true);
LASSERT(repl_buffer.readString(lyx), /**/);
if (opt.keep_case && sel_len >= 2) {
if (cur.inTexted()) {
if (firstUppercase(cur))
changeFirstCase(repl_buffer, text_uppercase, text_lowercase);
else if (allNonLowercase(cur, sel_len))
changeFirstCase(repl_buffer, text_uppercase, text_uppercase);
}
}
cap::cutSelection(cur, false, false);
if (!cur.inMathed()) {
repl_buffer.changeLanguage(
repl_buffer.language(),
cur.getFont().language());
LYXERR(Debug::FIND, "Replacing by pasteParagraphList()ing repl_buffer");
LYXERR(Debug::FIND, "Before pasteParagraphList() cur=" << cur << endl);
cap::pasteParagraphList(cur, repl_buffer.paragraphs(),
repl_buffer.params().documentClassPtr(),
bv->buffer().errorList("Paste"));
LYXERR(Debug::FIND, "After pasteParagraphList() cur=" << cur << endl);
sel_len = repl_buffer.paragraphs().begin()->size();
} else {
TexRow texrow;
odocstringstream ods;
otexstream os(ods, texrow);
OutputParams runparams(&repl_buffer.params().encoding());
runparams.nice = false;
runparams.flavor = OutputParams::LATEX;
runparams.linelen = 8000; //lyxrc.plaintext_linelen;
runparams.dryrun = true;
TeXOnePar(repl_buffer, repl_buffer.text(), 0, os, 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 insert()ing latex: '" << repl_latex << "' cur=" << cur << " with depth=" << cur.depth());
MathData ar(cur.buffer());
asArray(repl_latex, ar, Parse::NORMAL);
cur.insert(ar);
sel_len = ar.size();
LYXERR(Debug::FIND, "After insert() cur=" << cur << " with depth: " << cur.depth() << " and len: " << sel_len);
}
if (cur.pos() >= sel_len)
cur.pos() -= sel_len;
else
cur.pos() = 0;
LYXERR(Debug::FIND, "After pos adj cur=" << cur << " with depth: " << cur.depth() << " and len: " << sel_len);
bv->putSelectionAt(DocIterator(cur), sel_len, !opt.forward);
bv->processUpdateFlags(Update::Force);
bv->buffer().updatePreviews();
}
/// Perform a FindAdv operation.
bool findAdv(BufferView * bv, FindAndReplaceOptions const & opt)
{
DocIterator cur;
int match_len = 0;
try {
MatchStringAdv matchAdv(bv->buffer(), opt);
int length = bv->cursor().selectionEnd().pos() - bv->cursor().selectionBegin().pos();
if (length > 0)
bv->putSelectionAt(bv->cursor().selectionBegin(), length, !opt.forward);
findAdvReplace(bv, opt, matchAdv);
cur = bv->cursor();
if (opt.forward)
match_len = findForwardAdv(cur, matchAdv);
else
match_len = findBackwardsAdv(cur, matchAdv);
} catch (...) {
// This may only be raised by lyx::regex()
bv->message(_("Invalid regular expression!"));
return false;
}
if (match_len == 0) {
bv->message(_("Match not found!"));
return false;
}
bv->message(_("Match found!"));
LYXERR(Debug::FIND, "Putting selection at cur=" << cur << " with len: " << match_len);
bv->putSelectionAt(cur, match_len, !opt.forward);
return true;
}
ostringstream & operator<<(ostringstream & os, FindAndReplaceOptions const & opt)
{
os << to_utf8(opt.find_buf_name) << "\nEOSS\n"
<< opt.casesensitive << ' '
<< opt.matchword << ' '
<< opt.forward << ' '
<< opt.expandmacros << ' '
<< opt.ignoreformat << ' '
<< to_utf8(opt.repl_buf_name) << "\nEOSS\n"
<< opt.keep_case << ' '
<< int(opt.scope);
LYXERR(Debug::FIND, "built: " << os.str());
return os;
}
istringstream & operator>>(istringstream & is, 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, "file_buf_name: '" << s << "'");
opt.find_buf_name = from_utf8(s);
is >> opt.casesensitive >> opt.matchword >> opt.forward >> opt.expandmacros >> opt.ignoreformat;
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);
}
LYXERR(Debug::FIND, "repl_buf_name: '" << s << "'");
opt.repl_buf_name = from_utf8(s);
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.keep_case);
return is;
}
} // lyx namespace