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fakevim: Fix for searches with an empty match

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If searching (in "/" command mode) with regular expression "\\b" or
".{0}" the search takes infinitely long.

This fix highlights one character to the right of empty match
(behaviour is similar in Vim).

Change-Id: I5113177cf6af0ef0197e14f0165227e7538a3d1d
Reviewed-by: hjk <qthjk@ovi.com>
This commit is contained in:
Lukas Holecek
2012-07-25 19:38:58 +02:00
committed by hjk
parent 42a26ad450
commit 8eae872660
1 changed files with 2 additions and 5 deletions
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7
src/plugins/fakevim/fakevimhandler.cpp
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@@ -3920,11 +3920,6 @@ static QRegExp vimPatternToQtPattern(QString needle, QTextDocument::FindFlags *f
// FIXME: Rough mapping of a common case.
if (needle.startsWith(_("\\<")) && needle.endsWith(_("\\>")))
(*flags) |= QTextDocument::FindWholeWords;
// Half-hearted attempt at removing pitfalls.
if (needle.startsWith(_(".*")))
needle = needle.mid(2);
if (needle.endsWith(_(".*")))
needle = needle.left(needle.size() - 2);
needle.remove(_("\\<")); // start of word
needle.remove(_("\\>")); // end of word
@@ -4046,6 +4041,8 @@ void FakeVimHandler::Private::highlightMatches(const QString &needle)
tc = tc.document()->find(needleExp, tc.position(), flags);
if (tc.isNull())
break;
if (!tc.hasSelection())
tc.movePosition(Right, KeepAnchor, 1);
QTextEdit::ExtraSelection sel;
sel.cursor = tc;
sel.format = tc.blockCharFormat();