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fakevim: Incorrect commands with nested parentheses

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Commands in normal mode like "ci(", "di[", "ca{" etc. should handle
nested parentheses correctly.

task-number: QTCREATORBUG-7632
Change-Id: I7a77ffa61ff7675f0dc8c66918136c2573cf4c06
Reviewed-by: hjk <qthjk@ovi.com>
This commit is contained in:
hluk
2012-07-14 16:56:37 +02:00
committed by hjk
parent 7ba0a4de9c
commit fd817c675c
1 changed files with 81 additions and 8 deletions
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89
src/plugins/fakevim/fakevimhandler.cpp
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@@ -749,6 +749,8 @@ public:
int lineForPosition(int pos) const; // 1 based line, 0 based pos
QString lineContents(int line) const; // 1 based line
void setLineContents(int line, const QString &contents); // 1 based line
int blockBoundary(const QString &left, const QString &right,
bool end) const; // end or start position of current code block
int linesOnScreen() const;
int columnsOnScreen() const;
@@ -4807,6 +4809,69 @@ void FakeVimHandler::Private::setLineContents(int line, const QString &contents)
tc.insertText(contents);
}
int FakeVimHandler::Private::blockBoundary(const QString &left,
const QString &right, bool closing) const
{
const QString &begin = closing ? left : right;
const QString &end = closing ? right : left;
// match even if cursor is already on opening/closing string
// - on opening string:
QTextCursor tc1 = cursor();
int pos = tc1.position();
int sz = left.size();
tc1.setPosition(qMax(pos - sz + 1, 0));
tc1 = document()->find(left, tc1);
if (!tc1.isNull() && (tc1.position() - pos) <= sz) {
if (!closing)
return tc1.position() - sz;
} else {
// - on closing string:
tc1 = cursor();
sz = right.size();
tc1.setPosition(qMax(pos - sz + 1, 0));
tc1 = document()->find(right, tc1);
if (!tc1.isNull() && (tc1.position() - pos) <= sz) {
if (closing)
return tc1.position() - sz;
else
tc1.setPosition(tc1.position() - sz);
} else {
tc1 = cursor();
}
}
QTextCursor tc2 = tc1;
QTextDocument::FindFlags flags(closing ? 0 : QTextDocument::FindBackward);
int level = 0;
while (true) {
tc2 = document()->find(end, tc2, flags);
if (tc2.isNull())
return -1;
tc1 = document()->find(begin, tc1, flags);
while (!tc1.isNull() && (closing ? (tc1 < tc2) : (tc2 < tc1))) {
++level;
tc1 = document()->find(begin, tc1, flags);
}
while (level > 0 && (closing ? (tc2 < tc1) : (tc1 < tc2))) {
--level;
tc2 = document()->find(end, tc2, flags);
if (tc2.isNull())
return -1;
}
if (level == 0
&& (tc1.isNull() || (closing ? (tc2 < tc1) : (tc1 < tc2)))) {
break;
}
}
return tc2.position() - end.size();
}
int FakeVimHandler::Private::firstPositionInLine(int line) const
{
return document()->findBlockByNumber(line - 1).position();
@@ -5077,16 +5142,24 @@ void FakeVimHandler::Private::selectBlockTextObject(bool inner,
{
QString sleft = QString(QLatin1Char(left));
QString sright = QString(QLatin1Char(right));
QTextCursor tc2 = document()->find(sright, cursor());
if (tc2.isNull())
int p1 = blockBoundary(sleft, sright, false);
if (p1 == -1)
return;
QTextCursor tc1 = document()->find(sleft, cursor(), QTextDocument::FindBackward);
if (tc1.isNull())
int p2 = blockBoundary(sleft, sright, true);
if (p2 == -1)
return;
int p1 = tc1.position() + inner - sleft.size();
if (inner && document()->characterAt(p1) == ParagraphSeparator)
++p1;
const int p2 = tc2.position() - inner - sright.size();
if (inner) {
p1 += sleft.size();
--p2;
if (document()->characterAt(p1) == ParagraphSeparator)
++p1;
} else {
p2 -= sright.size() - 1;
}
setAnchorAndPosition(p2, p1);
m_movetype = MoveInclusive;
}