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fakevim: Add back references, $ and ^ handling to ex-mode substitute

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This commit is contained in:
hjk
2009-12-09 17:40:00 +01:00
parent bf077800b8
commit a0abde6306
1 changed files with 92 additions and 29 deletions
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121
src/plugins/fakevim/fakevimhandler.cpp
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@@ -214,7 +214,7 @@ struct Range
: beginPos(qMin(b, e)), endPos(qMax(b, e)), rangemode(m)
{}
QString toString() const
QString toString() const
{
return QString("%1-%2 (mode: %3)").arg(beginPos).arg(endPos)
.arg(rangemode);
@@ -291,6 +291,8 @@ public:
int firstPositionInLine(int line) const; // 1 based line, 0 based pos
int lastPositionInLine(int line) const; // 1 based line, 0 based pos
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) const; // 1 based line
// all zero-based counting
int cursorLineOnScreen() const;
@@ -1893,9 +1895,50 @@ void FakeVimHandler::Private::handleCommand(const QString &cmd)
EDITOR(setTextCursor(m_tc));
}
// result: (needle, replacement, opions)
static bool isSubstitution(const QString &cmd0, QStringList *result)
{
QString cmd;
if (cmd0.startsWith("substitute"))
cmd = cmd0.mid(10);
else if (cmd0.startsWith('s'))
cmd = cmd0.mid(1);
else
return false;
// we have /{pattern}/{string}/[flags] now
if (cmd.isEmpty())
return false;
const QChar separator = cmd.at(0);
int pos1 = -1;
int pos2 = -1;
int i;
for (i = 1; i < cmd.size(); ++i) {
if (cmd.at(i) == separator && cmd.at(i - 1) != '\\') {
pos1 = i;
break;
}
}
if (pos1 == -1)
return false;
for (++i; i < cmd.size(); ++i) {
if (cmd.at(i) == separator && cmd.at(i - 1) != '\\') {
pos2 = i;
break;
}
}
if (pos2 == -1)
pos2 = cmd.size();
result->append(cmd.mid(1, pos1 - 1));
result->append(cmd.mid(pos1 + 1, pos2 - pos1 - 1));
result->append(cmd.mid(pos2 + 1));
return true;
}
void FakeVimHandler::Private::handleExCommand(const QString &cmd0)
{
QString cmd = cmd0;
// FIXME: that seems to be different for %w and %s
if (cmd.startsWith(QLatin1Char('%')))
cmd = "1,$" + cmd.mid(1);
@@ -1921,7 +1964,9 @@ void FakeVimHandler::Private::handleExCommand(const QString &cmd0)
static QRegExp reNormal("^norm(al)?( (.*))?$");
static QRegExp reSet("^set?( (.*))?$");
static QRegExp reWrite("^[wx]q?a?!?( (.*))?$");
static QRegExp reSubstitute("^s(.)(.*)\\1(.*)\\1([gi]*)");
//static QRegExp reSubstitute("^s(.)(.*)\\1(.*)(\\1([gi]*))?$");
//reSubstitute.setMinimal(true);
QStringList arguments;
enterCommandMode();
showBlackMessage(QString());
@@ -2023,26 +2068,25 @@ void FakeVimHandler::Private::handleExCommand(const QString &cmd0)
leaveVisualMode();
setPosition(firstPositionInLine(beginLine));
//qDebug() << "FILTER: " << command;
showBlackMessage(FakeVimHandler::tr("%n lines filtered", 0, text.count('\n')));
showBlackMessage(FakeVimHandler::tr("%n lines filtered", 0,
text.count('\n')));
} else if (cmd.startsWith(QLatin1Char('>'))) {
m_anchor = firstPositionInLine(beginLine);
setPosition(firstPositionInLine(endLine));
shiftRegionRight(1);
leaveVisualMode();
showBlackMessage(FakeVimHandler::tr("%n lines >ed %1 time", 0, (endLine - beginLine + 1)).arg(1));
showBlackMessage(FakeVimHandler::tr("%n lines >ed %1 time", 0,
(endLine - beginLine + 1)).arg(1));
} else if (cmd == "red" || cmd == "redo") { // :redo
redo();
updateMiniBuffer();
} else if (reNormal.indexIn(cmd) != -1) { // :normal
//qDebug() << "REPLAY: " << reNormal.cap(3);
replay(reNormal.cap(3), 1);
} else if (reSubstitute.indexIn(cmd) != -1) { // :substitute
QString needle = reSubstitute.cap(2);
const QString replacement = reSubstitute.cap(3);
QString flags = reSubstitute.cap(4);
const bool startOfLineOnly = needle.startsWith('^');
if (startOfLineOnly)
needle.remove(0, 1);
} else if (isSubstitution(cmd, &arguments)) { // :substitute
QString needle = arguments.at(0);
const QString replacement = arguments.at(1);
QString flags = arguments.at(2);
needle.replace('$', '\n');
needle.replace("\\\n", "\\$");
QRegExp pattern(needle);
@@ -2050,30 +2094,34 @@ void FakeVimHandler::Private::handleExCommand(const QString &cmd0)
pattern.setCaseSensitivity(Qt::CaseInsensitive);
const bool global = flags.contains('g');
beginEditBlock();
for (int line = beginLine; line <= endLine; ++line) {
const int start = firstPositionInLine(line);
const int end = lastPositionInLine(line);
for (int position = start; position <= end && position >= start; ) {
position = pattern.indexIn(m_tc.document()->toPlainText(), position);
if (startOfLineOnly && position != start)
for (int line = endLine; line >= beginLine; --line) {
QString origText = lineContents(line);
QString text = origText;
int pos = 0;
while (true) {
pos = pattern.indexIn(text, pos, QRegExp::CaretAtZero);
if (pos == -1)
break;
if (position != -1) {
m_tc.setPosition(position);
m_tc.movePosition(QTextCursor::NextCharacter,
KeepAnchor, pattern.matchedLength());
QString text = m_tc.selectedText();
if (text.endsWith(ParagraphSeparator)) {
text = replacement + "\n";
} else {
text.replace(ParagraphSeparator, "\n");
text.replace(pattern, replacement);
if (pattern.cap(0).isEmpty())
break;
QStringList caps = pattern.capturedTexts();
QString matched = text.mid(pos, caps.at(0).size());
QString repl = replacement;
for (int i = 1; i < caps.size(); ++i)
repl.replace("\\" + QString::number(i), caps.at(i));
for (int i = 0; i < repl.size(); ++i) {
if (repl.at(i) == '&' && (i == 0 || repl.at(i - 1) != '\\')) {
repl.replace(i, 1, caps.at(0));
i += caps.at(0).size();
}
m_tc.removeSelectedText();
m_tc.insertText(text);
}
text = text.left(pos) + repl + text.mid(pos + matched.size());
pos += matched.size();
if (!global)
break;
}
if (text != origText)
setLineContents(line, text);
}
endEditBlock();
} else if (reSet.indexIn(cmd) != -1) { // :set
@@ -2715,6 +2763,21 @@ void FakeVimHandler::Private::fixMarks(int positionAction, int positionChange)
}
}
QString FakeVimHandler::Private::lineContents(int line) const
{
return m_tc.document()->findBlockByNumber(line - 1).text();
}
void FakeVimHandler::Private::setLineContents(int line, const QString &contents) const
{
QTextBlock block = m_tc.document()->findBlockByNumber(line - 1);
QTextCursor tc = m_tc;
tc.setPosition(block.position());
tc.setPosition(block.position() + block.length() - 1, KeepAnchor);
tc.removeSelectedText();
tc.insertText(contents);
}
int FakeVimHandler::Private::firstPositionInLine(int line) const
{
return m_tc.document()->findBlockByNumber(line - 1).position();