-#include <config.h>
+/**
+ * \file lyxfind.C
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
+ *
+ * \author Lars Gullik Bjønnes
+ * \author John Levon
+ * \author Jürgen Vigna
+ * \author Alfredo Braunstein
+ *
+ * Full author contact details are available in file CREDITS.
+ */
-#ifdef __GNUG__
-#pragma implementation
-#endif
+#include <config.h>
-#include "lyxtext.h"
#include "lyxfind.h"
-#include "LyXView.h"
-#include "frontends/Alert.h"
-#include "support/textutils.h"
-#include "support/lstrings.h"
-#include "BufferView.h"
+
#include "buffer.h"
+#include "BufferView.h"
+#include "debug.h"
+#include "iterators.h"
#include "gettext.h"
+#include "lyxtext.h"
+#include "paragraph.h"
+#include "PosIterator.h"
+#include "undo.h"
-using lyx::pos_type;
+#include "frontends/Alert.h"
+#include "support/textutils.h"
-///
-// locally used enum
-///
-enum SearchResult {
- //
- SR_NOT_FOUND = 0,
- //
- SR_FOUND,
- //
- SR_FOUND_NOUPDATE
-};
+using lyx::support::lowercase;
+using lyx::support::uppercase;
+using bv_funcs::put_selection_at;
+using std::string;
-/// returns true if the specified string is at the specified position
-bool IsStringInText(Paragraph * par, pos_type pos,
- string const & str, bool const & = true,
- bool const & = false);
-/// if the string is found: return true and set the cursor to the new position
-SearchResult SearchForward(BufferView *, LyXText * text, string const & str,
- bool const & = true, bool const & = false);
-///
-SearchResult SearchBackward(BufferView *, LyXText * text, string const & str,
- bool const & = true, bool const & = false);
+namespace lyx {
+namespace find {
+namespace {
-int LyXReplace(BufferView * bv,
- string const & searchstr, string const & replacestr,
- bool forward, bool casesens, bool matchwrd, bool replaceall,
- bool once)
+class MatchString
{
- if (!bv->available() || bv->buffer()->isReadonly())
- return 0;
-
- // CutSelection cannot cut a single space, so we have to stop
- // in order to avoid endless loop :-(
- if (searchstr.length() == 0
- || (searchstr.length() == 1 && searchstr[0] == ' '))
- {
- Alert::alert(_("Sorry!"), _("You cannot replace a single space, "
- "nor an empty character."));
- return 0;
- }
-
- LyXText * text = bv->getLyXText();
+public:
+ MatchString(string const & str, bool cs, bool mw)
+ : str(str), cs(cs), mw(mw)
+ {}
- // now we can start searching for the first
- // start at top if replaceall
- bool fw = forward;
- if (replaceall) {
- text->clearSelection();
- if (text->inset_owner) {
- bv->unlockInset(bv->theLockingInset());
- text = bv->text;
+ // returns true if the specified string is at the specified position
+ bool operator()(Paragraph const & par, pos_type pos) const
+ {
+ string::size_type size = str.length();
+ pos_type i = 0;
+ pos_type const parsize = par.size();
+ while ((pos + i < parsize)
+ && (string::size_type(i) < size)
+ && (cs ? (str[i] == par.getChar(pos + i))
+ : (uppercase(str[i]) == uppercase(par.getChar(pos + i))))) {
+ ++i;
}
- text->cursorTop(bv);
- // override search direction because we search top to bottom
- fw = true;
+
+ if (size != string::size_type(i))
+ return false;
+
+ // if necessary, check whether string matches word
+ if (mw) {
+ if (pos > 0 && IsLetterCharOrDigit(par.getChar(pos - 1)))
+ return false;
+ if (pos + pos_type(size) < parsize
+ && IsLetterCharOrDigit(par.getChar(pos + size)));
+ return false;
+ }
+
+ return true;
}
- // if nothing selected or selection does not equal search string
- // search and select next occurance and return if no replaceall
- string str1;
- string str2;
- if (casesens) {
- str1 = searchstr;
- str2 = text->selectionAsString(bv->buffer(), false);
- } else {
- str1 = lowercase(searchstr);
- str2 = lowercase(text->selectionAsString(bv->buffer(), false));
+private:
+ // search string
+ string str;
+ // case sensitive
+ bool cs;
+ // match whole words only
+ bool mw;
+};
+
+
+bool findForward(PosIterator & cur, PosIterator const & end,
+ MatchString const & match)
+{
+ for (; cur != end; ++cur) {
+ if (match(*cur.pit(), cur.pos()))
+ return true;
}
- if (str1 != str2) {
- if (!LyXFind(bv, searchstr, fw, false, casesens, matchwrd) ||
- !replaceall)
- {
- return 0;
- }
+ return false;
+}
+
+
+bool findBackwards(PosIterator & cur, PosIterator const & beg,
+ MatchString const & match)
+{
+ while (beg != cur) {
+ --cur;
+ if (match(*cur.pit(), cur.pos()))
+ return true;
}
+ return false;
+}
- bool found = false;
- int replace_count = 0;
- do {
- bv->hideCursor();
- bv->update(bv->getLyXText(), BufferView::SELECT|BufferView::FITCUR);
- bv->toggleSelection(false);
- bv->getLyXText()->replaceSelectionWithString(bv, replacestr);
- bv->getLyXText()->setSelectionOverString(bv, replacestr);
- bv->update(bv->getLyXText(), BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
- ++replace_count;
- if (!once)
- found = LyXFind(bv, searchstr, fw, false, casesens, matchwrd);
- } while (!once && replaceall && found);
-
- if (bv->focus())
- bv->showCursor();
-
- return replace_count;
+
+bool findChange(PosIterator & cur, PosIterator const & end)
+{
+ for (; cur != end; ++cur) {
+ if ((!cur.pit()->size() || !cur.at_end())
+ && cur.pit()->lookupChange(cur.pos()) != Change::UNCHANGED)
+ return true;
+ }
+ return false;
}
-bool LyXFind(BufferView * bv,
- string const & searchstr, bool forward,
- bool frominset, bool casesens, bool matchwrd)
+
+bool searchAllowed(BufferView * bv, string const & str)
{
- if (!bv->available() || searchstr.empty())
+ if (str.empty()) {
+ Alert::error(_("Search error"), _("Search string is empty"));
return false;
-
- LyXText * text = bv->getLyXText();
+ }
+ return bv->available();
+}
+
+} // namespace anon
+
+
+
+bool find(BufferView * bv, string const & searchstr, bool cs, bool mw, bool fw)
+{
+ if (!searchAllowed(bv, searchstr))
+ return false;
+
+ PosIterator cur = PosIterator(*bv);
+
+ MatchString const match(searchstr, cs, mw);
+
+ PosIterator const end = bv->buffer()->pos_iterator_end();
+ PosIterator const beg = bv->buffer()->pos_iterator_begin();
+
+ bool found = fw ? findForward(cur, end, match)
+ : findBackwards(cur, beg, match);
+
+ if (found)
+ put_selection_at(bv, cur, searchstr.length(), !fw);
+
+ return found;
+}
+
+
+int replaceAll(BufferView * bv,
+ string const & searchstr, string const & replacestr,
+ bool cs, bool mw)
+{
+ Buffer & buf = *bv->buffer();
- bv->hideCursor();
- bv->update(text, BufferView::SELECT|BufferView::FITCUR);
+ if (!searchAllowed(bv, searchstr) || buf.isReadonly())
+ return 0;
- if (text->selection.set())
- text->cursor = forward ?
- text->selection.end : text->selection.start;
-
- SearchResult result = SR_NOT_FOUND;
-
- if (!frominset && bv->theLockingInset()) {
- bool found = forward ?
- bv->theLockingInset()->searchForward(bv, searchstr, casesens, matchwrd) :
- bv->theLockingInset()->searchBackward(bv, searchstr, casesens, matchwrd);
- if (found)
- result = SR_FOUND_NOUPDATE;
- else {
- text = bv->getLyXText();
- Paragraph * par = text->cursor.par();
- pos_type pos = text->cursor.pos();
- if (forward) {
- if (pos < par->size() - 1)
- ++pos;
- else {
- pos = 0;
- par = par->next();
- }
- if (par)
- text->setCursor(bv, par, pos);
- }
- if (par) {
- result = forward ?
- SearchForward(bv, text, searchstr, casesens, matchwrd) :
- SearchBackward(bv, text, searchstr, casesens, matchwrd);
- }
- }
- } else {
- result = forward ?
- SearchForward(bv, text, searchstr, casesens, matchwrd) :
- SearchBackward(bv, text, searchstr, casesens, matchwrd);
+ recordUndo(Undo::ATOMIC, bv->text(), 0, buf.paragraphs().size() - 1);
+
+ PosIterator cur = buf.pos_iterator_begin();
+ PosIterator const end = buf.pos_iterator_end();
+ MatchString const match(searchstr, cs, mw);
+ int num = 0;
+
+ int const rsize = replacestr.size();
+ int const ssize = searchstr.size();
+
+ while (findForward(cur, end, match)) {
+ pos_type pos = cur.pos();
+ LyXFont const font
+ = cur.pit()->getFontSettings(buf.params(), pos);
+ int striked = ssize - cur.pit()->erase(pos, pos + ssize);
+ cur.pit()->insert(pos, replacestr, font);
+ advance(cur, rsize + striked);
+ ++num;
}
- bool found = true;
- if (result == SR_FOUND) {
- // the actual text pointer could have changed!
- bv->update(bv->getLyXText(), BufferView::SELECT|BufferView::FITCUR);
- bv->toggleSelection();
- bv->getLyXText()->clearSelection();
- bv->getLyXText()->setSelectionOverString(bv, searchstr);
- bv->toggleSelection(false);
- bv->update(bv->getLyXText(), BufferView::SELECT|BufferView::FITCUR);
- } else if (result == SR_NOT_FOUND)
- found = false;
-
- if (bv->focus())
- bv->showCursor();
-
- return found;
+ PosIterator beg = buf.pos_iterator_begin();
+ bv->text()->init(bv);
+ put_selection_at(bv, beg, 0, false);
+ if (num)
+ buf.markDirty();
+ return num;
}
-// returns true if the specified string is at the specified position
-bool IsStringInText(Paragraph * par, pos_type pos,
- string const & str, bool const & cs,
- bool const & mw)
+namespace {
+
+bool stringSelected(BufferView * bv,
+ string const & searchstr,
+ bool cs, bool mw, bool fw)
{
- if (!par)
+ LyXText * text = bv->getLyXText();
+ // if nothing selected or selection does not equal search
+ // string search and select next occurance and return
+ string const & str1 = searchstr;
+ string const str2 = text->selectionAsString(*bv->buffer(),
+ false);
+ if ((cs && str1 != str2) || lowercase(str1) != lowercase(str2)) {
+ find(bv, searchstr, cs, mw, fw);
return false;
-
- string::size_type size = str.length();
- pos_type i = 0;
- while (((pos + i) < par->size())
- && (string::size_type(i) < size)
- && (cs ? (str[i] == par->getChar(pos + i))
- : (toupper(str[i]) == toupper(par->getChar(pos + i)))))
- {
- ++i;
- }
- if (size == string::size_type(i)) {
- // if necessary, check whether string matches word
- if (!mw)
- return true;
- if ((pos <= 0 || !IsLetterCharOrDigit(par->getChar(pos - 1)))
- && (pos + pos_type(size) >= par->size()
- || !IsLetterCharOrDigit(par->getChar(pos + size)))) {
- return true;
- }
}
- return false;
+
+ return true;
}
-// forward search:
-// if the string can be found: return true and set the cursor to
-// the new position, cs = casesensitive, mw = matchword
-SearchResult SearchForward(BufferView * bv, LyXText * text, string const & str,
- bool const & cs, bool const & mw)
+} //namespace anon
+
+
+int replace(BufferView * bv,
+ string const & searchstr, string const & replacestr,
+ bool cs, bool mw, bool fw)
{
- Paragraph * par = text->cursor.par();
- pos_type pos = text->cursor.pos();
- UpdatableInset * inset;
-
- while (par && !IsStringInText(par, pos, str, cs, mw)) {
- if (par->isInset(pos) &&
- (inset = (UpdatableInset *)par->getInset(pos)) &&
- (inset->isTextInset()))
- {
- // lock the inset!
- text->setCursor(bv, par, pos);
- inset->edit(bv);
- if (inset->searchForward(bv, str, cs, mw))
- return SR_FOUND_NOUPDATE;
- text = bv->getLyXText();
- }
- if (pos < par->size() - 1)
- ++pos;
- else {
- pos = 0;
- par = par->next();
- }
- }
- if (par) {
- text->setCursor(bv, par, pos);
- return SR_FOUND;
-#if 0
- } else if (text->inset_owner) {
- // test if we're inside an inset if yes unlock the inset
- // and recall us with the outside LyXText!
- bv->unlockInset((UpdatableInset *)text->inset_owner);
- if (!bv->theLockingInset()) {
- text = bv->getLyXText();
- par = text->cursor.par();
- pos = text->cursor.pos();
- if (pos < par->size() - 1)
- ++pos;
- else {
- pos = 0;
- par = par->next();
- }
- if (!par)
- return SR_NOT_FOUND;
- text->setCursor(bv, par, pos);
- return SearchForward(bv, text, str, cs, mw);
- } else {
- return SR_NOT_FOUND;
- }
-#endif
- } else
- return SR_NOT_FOUND;
+ if (!searchAllowed(bv, searchstr) || bv->buffer()->isReadonly())
+ return 0;
+
+ if (!stringSelected(bv, searchstr, cs, mw, fw))
+ return 0;
+
+ LyXText * text = bv->getLyXText();
+
+ text->replaceSelectionWithString(replacestr);
+ text->setSelectionRange(replacestr.length());
+ text->cursor = fw ? text->selEnd() : text->selStart();
+
+ bv->buffer()->markDirty();
+ find(bv, searchstr, cs, mw, fw);
+ bv->update();
+
+ return 1;
}
-// backward search:
-// if the string can be found: return true and set the cursor to
-// the new position, cs = casesensitive, mw = matchword
-SearchResult SearchBackward(BufferView * bv, LyXText * text,
- string const & str,
- bool const & cs, bool const & mw)
+bool findNextChange(BufferView * bv)
{
- Paragraph * par = text->cursor.par();
- pos_type pos = text->cursor.pos();
-
- do {
- if (pos > 0)
- --pos;
- else {
- // We skip empty paragraphs (Asger)
- do {
- par = par->previous();
- if (par)
- pos = par->size() - 1;
- } while (par && pos < 0);
- }
- UpdatableInset * inset;
- if (par && par->isInset(pos) &&
- (inset = (UpdatableInset *)par->getInset(pos)) &&
- (inset->isTextInset()))
- {
- // lock the inset!
- text->setCursor(bv, par, pos);
- inset->edit(bv, false);
- if (inset->searchBackward(bv, str, cs, mw))
- return SR_FOUND_NOUPDATE;
- text = bv->getLyXText();
- }
- } while (par && !IsStringInText(par, pos, str, cs, mw));
-
- if (par) {
- text->setCursor(bv, par, pos);
- return SR_FOUND;
- }
-#if 0
- else if (text->inset_owner) {
- // test if we're inside an inset if yes unlock the inset
- // and recall us with the outside LyXText!
- bv->unlockInset((UpdatableInset *)text->inset_owner);
- if (!bv->theLockingInset()) {
- return SearchBackward(bv, bv->getLyXText(), str, cs, mw);
+ if (!bv->available())
+ return false;
+
+ PosIterator cur = PosIterator(*bv);
+ PosIterator const endit = bv->buffer()->pos_iterator_end();
+
+ if (!findChange(cur, endit))
+ return false;
+
+ ParagraphList::iterator pit = cur.pit();
+ pos_type pos = cur.pos();
+
+ Change orig_change = pit->lookupChangeFull(pos);
+ pos_type parsize = pit->size();
+ pos_type end = pos;
+
+ for (; end != parsize; ++end) {
+ Change change = pit->lookupChangeFull(end);
+ if (change != orig_change) {
+ // slight UI optimisation: for replacements, we get
+ // text like : _old_new. Consider that as one change.
+ if (!(orig_change.type == Change::DELETED &&
+ change.type == Change::INSERTED))
+ break;
}
}
-#endif
- return SR_NOT_FOUND;
+ pos_type length = end - pos;
+ put_selection_at(bv, cur, length, true);
+ return true;
}
+} // find namespace
+} // lyx namespace