]> git.lyx.org Git - lyx.git/blobdiff - src/lyxfind.C
* src/text2.C: deleteEmptyParagraphMechanism(): fix a crash in
[lyx.git] / src / lyxfind.C
index db23d30db9470637aad0e7e479e054803cd10fe6..9e92f3b63b64db4b1b4a75d885e80307e4424520 100644 (file)
 #include "lyxfind.h"
 
 #include "buffer.h"
+#include "cursor.h"
+#include "CutAndPaste.h"
+#include "buffer_funcs.h"
 #include "BufferView.h"
 #include "debug.h"
-#include "iterators.h"
+#include "funcrequest.h"
 #include "gettext.h"
 #include "lyxtext.h"
 #include "paragraph.h"
-#include "PosIterator.h"
+#include "pariterator.h"
 #include "undo.h"
 
 #include "frontends/Alert.h"
+#include "frontends/Selection.h"
 
-#include "insets/insettext.h"
+#include "support/convert.h"
+#include "support/docstream.h"
 
-#include "support/textutils.h"
-
-using lyx::support::lowercase;
-using lyx::support::uppercase;
-using bv_funcs::put_selection_at;
+namespace lyx {
 
-using std::string;
+using support::lowercase;
+using support::uppercase;
+using support::split;
 
-namespace lyx {
-namespace find {
+using std::advance;
 
 
 namespace {
 
-class MatchString
+bool parse_bool(docstring & howto)
+{
+       if (howto.empty())
+               return false;
+       docstring var;
+       howto = split(howto, var, ' ');
+       return (var == "1");
+}
+
+
+class MatchString : public std::binary_function<Paragraph, pos_type, bool>
 {
 public:
-       MatchString(string const & str, bool cs, bool mw)
-               : str(str), cs(cs), mw(mw) {};
-// returns true if the specified string is at the specified position
+       MatchString(docstring const & str, bool cs, bool mw)
+               : str(str), cs(cs), mw(mw)
+       {}
+
+       // 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();
+       {
+               docstring::size_type const size = str.length();
                pos_type i = 0;
-               pos_type 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;
+               pos_type const parsize = par.size();
+               for (i = 0; pos + i < parsize; ++i) {
+                       if (docstring::size_type(i) >= size)
+                               break;
+                       if (cs && str[i] != par.getChar(pos + i))
+                               break;
+                       if (!cs && uppercase(str[i]) != uppercase(par.getChar(pos + i)))
+                               break;
                }
-               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) >= parsize
-                               || !IsLetterCharOrDigit(par.getChar(pos + size)))) {
-                               return true;
-                       }
+
+               if (size != docstring::size_type(i))
+                       return false;
+
+               // if necessary, check whether string matches word
+               if (mw) {
+                       if (pos > 0 && par.isLetter(pos - 1))
+                               return false;
+                       if (pos + pos_type(size) < parsize
+                           && par.isLetter(pos + size))
+                               return false;
                }
-               return false;
+
+               return true;
        }
-       
+
 private:
-       string str;
+       // search string
+       docstring str;
+       // case sensitive
        bool cs;
+       // match whole words only
        bool mw;
 };
 
 
-
-} //namespace anon
-
-
-
-
-
-namespace {
-
-
-
-
-bool findForward(PosIterator & cur, PosIterator const & end,
-                MatchString & match)
+bool findForward(DocIterator & cur, MatchString const & match)
 {
-       for (; cur != end && !match(*cur.pit(), cur.pos()); ++cur)
-               ;
-
-       return cur != end;
+       for (; cur; cur.forwardChar())
+               if (cur.inTexted() && match(cur.paragraph(), cur.pos()))
+                       return true;
+       return false;
 }
 
 
-bool findBackwards(PosIterator & cur, PosIterator const & beg,
-                  MatchString & match)
+bool findBackwards(DocIterator & cur, MatchString const & match)
 {
-       if (beg == cur)
-               return false;
-       do {
-               --cur;
-               if (match(*cur.pit(), cur.pos()))
-                       break;
-       } while (cur != beg);
-
-       return match(*cur.pit(), cur.pos());
+       while (cur) {
+               cur.backwardChar();
+               if (cur.inTexted() && match(cur.paragraph(), cur.pos()))
+                       return true;
+       }
+       return false;
 }
 
 
-bool findChange(PosIterator & cur, PosIterator const & end)
+bool findChange(DocIterator & cur)
 {
-       for (; cur != end; ++cur) {
-               if ((!cur.pit()->size() || !cur.at_end())
-                   && cur.pit()->lookupChange(cur.pos()) != Change::UNCHANGED)
-                       break;
-       }
-       
-       return cur != end;
+       for (; cur; cur.forwardPos())
+               if (cur.inTexted() && !cur.paragraph().isUnchanged(cur.pos()))
+                       return true;
+       return false;
 }
 
 
-bool searchAllowed(BufferView * bv, string const & str)
+bool searchAllowed(BufferView * bv, docstring const & str)
 {
        if (str.empty()) {
-               Alert::error(_("Search error"), _("Search string is empty"));
+               frontend::Alert::error(_("Search error"),
+                                           _("Search string is empty"));
                return false;
        }
-       if (!bv->available())
-               return false;
-       return true;
-           
+       return bv->buffer();
 }
 
-} // namespace anon
-
 
-bool find(BufferView * bv, string const & searchstr,
-         bool cs, bool mw, bool fw)
+bool find(BufferView * bv, docstring const & searchstr, bool cs, bool mw, bool fw)
 {
        if (!searchAllowed(bv, searchstr))
                return false;
 
-       PosIterator cur = PosIterator(*bv);
+       DocIterator cur = bv->cursor();
 
-       MatchString match(searchstr, cs, mw);
-       
-       bool found;
+       MatchString const match(searchstr, cs, mw);
+
+       bool found = fw ? findForward(cur, match) : findBackwards(cur, match);
 
-       if (fw) {
-               PosIterator const end = bv->buffer()->pos_iterator_end();
-               found = findForward(cur, end, match);
-       } else {
-               PosIterator const beg = bv->buffer()->pos_iterator_begin();
-               found = findBackwards(cur, beg, match);
-       }
-       
        if (found)
-               put_selection_at(bv, cur, searchstr.length(), !fw);
+               bv->putSelectionAt(cur, searchstr.length(), !fw);
 
        return found;
 }
 
-namespace {
-       
-
-
-} //namespace anon
-
 
 int replaceAll(BufferView * bv,
-              string const & searchstr, string const & replacestr,
+              docstring const & searchstr, docstring const & replacestr,
               bool cs, bool mw)
 {
        Buffer & buf = *bv->buffer();
 
        if (!searchAllowed(bv, searchstr) || buf.isReadonly())
                return 0;
-       
-       recordUndo(Undo::ATOMIC, bv->text, 0,
-                  buf.paragraphs().size() - 1);
-       
-       PosIterator cur = buf.pos_iterator_begin();
-       PosIterator const end = buf.pos_iterator_end();
-       MatchString match(searchstr, cs, mw);
+
+       recordUndoFullDocument(bv);
+
+       MatchString const match(searchstr, cs, mw);
        int num = 0;
 
        int const rsize = replacestr.size();
        int const ssize = searchstr.size();
-       while (findForward(cur, end, match)) {
+
+       DocIterator cur = doc_iterator_begin(buf.inset());
+       while (findForward(cur, 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);
+                       = cur.paragraph().getFontSettings(buf.params(), pos);
+               int striked = ssize - cur.paragraph().eraseChars(pos, pos + ssize,
+                                                           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;
        }
-       PosIterator beg = buf.pos_iterator_begin();
-       bv->text->init(bv);
-       put_selection_at(bv, beg, 0, false);
+
+       updateLabels(buf);
+       bv->putSelectionAt(doc_iterator_begin(buf.inset()), 0, false);
        if (num)
                buf.markDirty();
        return num;
 }
 
 
-int replace(BufferView * bv,
-           string const & searchstr, string const & replacestr,
-           bool cs, bool mw, bool fw)
+bool stringSelected(BufferView * bv, docstring const & searchstr,
+                   bool cs, bool mw, bool fw)
+{
+       // if nothing selected or selection does not equal search
+       // string search and select next occurance and return
+       docstring const & str1 = searchstr;
+       docstring const str2 = bv->cursor().selectionAsString(false);
+       if ((cs && str1 != str2) || lowercase(str1) != lowercase(str2)) {
+               find(bv, searchstr, cs, mw, fw);
+               return false;
+       }
+
+       return true;
+}
+
+
+int replace(BufferView * bv, docstring const & searchstr,
+           docstring const & replacestr, bool cs, bool mw, bool fw)
 {
        if (!searchAllowed(bv, searchstr) || bv->buffer()->isReadonly())
                return 0;
-       
-       {
-               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 0;
-               }
-       }
 
-       LyXText * text = bv->getLyXText();
-       // We have to do this check only because mathed insets don't
-       // return their own LyXText but the LyXText of it's parent!
-       if (!bv->theLockingInset() ||
-           ((text != bv->text) &&
-            (text->inset_owner == text->inset_owner->getLockingInset()))) {
-               text->replaceSelectionWithString(replacestr);
-               text->setSelectionRange(replacestr.length());
-               text->cursor = fw ? text->selection.end
-                       : text->selection.start;
-       }
+       if (!stringSelected(bv, searchstr, cs, mw, fw))
+               return 0;
 
-       // FIXME: should be called via an LFUN
+       LCursor & cur = bv->cursor();
+       cap::replaceSelectionWithString(cur, replacestr, fw);
        bv->buffer()->markDirty();
-
        find(bv, searchstr, cs, mw, fw);
        bv->update();
-       
+
        return 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 & search, docstring const & replace,
+                           bool casesensitive, bool matchword,
+                           bool all, bool forward)
+{
+       odocstringstream ss;
+       ss << search << '\n'
+          << replace << '\n'
+          << int(casesensitive) << ' '
+          << int(matchword) << ' '
+          << int(all) << ' '
+          << int(forward);
+       return ss.str();
+}
+
+
+void find(BufferView * bv, FuncRequest const & ev)
+{
+       if (!bv || ev.action != LFUN_WORD_FIND)
+               return;
+
+       //lyxerr << "find called, cmd: " << ev << std::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);
+
+       bool const found = find(bv, search,
+                                 casesensitive, matchword, forward);
+
+       if (!found)
+               // emit message signal.
+               bv->message(_("String not found!"));
+}
+
+
+void replace(BufferView * bv, FuncRequest const & ev)
+{
+       if (!bv || ev.action != LFUN_WORD_REPLACE)
+               return;
+
+       // data is of the form
+       // "<search>
+       //  <replace>
+       //  <casesensitive> <matchword> <all> <forward>"
+       docstring search;
+       docstring rplc;
+       docstring howto = split(ev.argument(), search, '\n');
+       howto = split(howto, rplc, '\n');
+
+       bool casesensitive = parse_bool(howto);
+       bool matchword     = parse_bool(howto);
+       bool all           = parse_bool(howto);
+       bool forward       = parse_bool(howto);
+
+       Buffer * buf = bv->buffer();
+
+       int const replace_count = all
+               ? replaceAll(bv, search, rplc, casesensitive, matchword)
+               : replace(bv, search, rplc, casesensitive, matchword, forward);
+
+       if (replace_count == 0) {
+               // emit message signal.
+               buf->message(_("String not found!"));
+       } else {
+               if (replace_count == 1) {
+                       // emit message signal.
+                       buf->message(_("String has been replaced."));
+               } else {
+                       docstring str = convert<docstring>(replace_count);
+                       str += _(" strings have been replaced.");
+                       // emit message signal.
+                       buf->message(str);
+               }
+       }
+}
+
 
 bool findNextChange(BufferView * bv)
 {
-       if (!bv->available())
+       if (!bv->buffer())
                return false;
 
-       PosIterator cur = PosIterator(*bv);
-       PosIterator const endit = bv->buffer()->pos_iterator_end();
+       DocIterator cur = bv->cursor();
 
-       if (!findChange(cur, endit))
+       if (!findChange(cur))
                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);
+
+       bv->cursor().setCursor(cur);
+       bv->cursor().resetAnchor();
+
+       Change orig_change = cur.paragraph().lookupChange(cur.pos());
+
+       DocIterator et = doc_iterator_end(cur.inset());
+       for (; cur != et; cur.forwardPosNoDescend()) {
+               Change change = cur.paragraph().lookupChange(cur.pos());
                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;
+                       break;
                }
        }
-       pos_type length = end - pos;
-       bv->text->init(bv);
-       put_selection_at(bv, cur, length, true);
+       // Now put cursor to end of selection:
+       bv->cursor().setCursor(cur);
+       bv->cursor().setSelection();
+       theSelection().haveSelection(bv->cursor().selection());
+
        return true;
 }
 
-} // find namespace
 } // lyx namespace