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fakevim: Added support for smartcase searching

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Change-Id: I85a83aff0886282a6eac2dc9cc4662087c3b0b95
Reviewed-by: hjk <qthjk@ovi.com>
This commit is contained in:
Lukas Holecek
2012-07-22 14:30:56 +02:00
committed by hjk
parent 6544ed2f00
commit 7e7460ad33
5 changed files with 139 additions and 122 deletions
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239
src/plugins/fakevim/fakevimhandler.cpp
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@@ -290,6 +290,122 @@ struct SearchData
bool highlightCursor;
};
static QRegExp vimPatternToQtPattern(QString needle, bool smartcase)
{
/* Trasformations (Vim regexp -> QRegExp):
* \a -> [A-Za-z]
* \A -> [^A-Za-z]
* \h -> [A-Za-z_]
* \H -> [^A-Za-z_]
* \l -> [a-z]
* \L -> [^a-z]
* \o -> [0-7]
* \O -> [^0-7]
* \u -> [A-Z]
* \U -> [^A-Z]
* \x -> [0-9A-Fa-f]
* \X -> [^0-9A-Fa-f]
*
* \< -> \b
* \> -> \b
* [] -> \[\]
* \= -> ?
*
* (...) <-> \(...\)
* {...} <-> \{...\}
* | <-> \|
* ? <-> \?
* + <-> \+
* \{...} -> {...}
*
* \c - set ignorecase for rest
* \C - set noignorecase for rest
*/
bool ignorecase = smartcase && !needle.contains(QRegExp("[A-Z]"));
QString pattern;
pattern.reserve(2 * needle.size());
bool escape = false;
bool brace = false;
bool curly = false;
foreach (const QChar &c, needle) {
if (brace) {
brace = false;
if (c == ']') {
pattern.append(_("\\[\\]"));
continue;
} else {
pattern.append('[');
}
}
if (QString("(){}+|?").indexOf(c) != -1) {
if (c == '{') {
curly = escape;
} else if (c == '}' && curly) {
curly = false;
escape = true;
}
if (escape)
escape = false;
else
pattern.append('\\');
pattern.append(c);
} else if (escape) {
// escape expression
escape = false;
if (c == '<' || c == '>')
pattern.append(_("\\b"));
else if (c == 'a')
pattern.append(_("[a-zA-Z]"));
else if (c == 'A')
pattern.append(_("[^a-zA-Z]"));
else if (c == 'h')
pattern.append(_("[A-Za-z_]"));
else if (c == 'H')
pattern.append(_("[^A-Za-z_]"));
else if (c == 'c' || c == 'C')
ignorecase = (c == 'c');
else if (c == 'l')
pattern.append(_("[a-z]"));
else if (c == 'L')
pattern.append(_("[^a-z]"));
else if (c == 'o')
pattern.append(_("[0-7]"));
else if (c == 'O')
pattern.append(_("[^0-7]"));
else if (c == 'u')
pattern.append(_("[A-Z]"));
else if (c == 'U')
pattern.append(_("[^A-Z]"));
else if (c == 'x')
pattern.append(_("[0-9A-Fa-f]"));
else if (c == 'X')
pattern.append(_("[^0-9A-Fa-f]"));
else if (c == '=')
pattern.append(_("?"));
else
pattern.append('\\' + c);
} else {
// unescaped expression
if (c == '\\')
escape = true;
else if (c == '[')
brace = true;
else if (c.isLetter() && ignorecase)
pattern.append('[' + c.toLower() + c.toUpper() + ']');
else
pattern.append(c);
}
}
if (escape)
pattern.append('\\');
else if (brace)
pattern.append('[');
return QRegExp(pattern);
}
Range::Range()
: beginPos(-1), endPos(-1), rangemode(RangeCharMode)
@@ -3377,7 +3493,7 @@ bool FakeVimHandler::Private::handleExSubstituteCommand(const ExCommand &cmd)
needle.replace('$', '\n');
needle.replace("\\\n", "\\$");
pattern.setPattern(needle);
pattern = vimPatternToQtPattern(needle, hasConfig(ConfigSmartCase));
m_lastSubstituteFlags = flags;
m_lastSubstitutePattern = pattern;
@@ -3916,123 +4032,6 @@ bool FakeVimHandler::Private::handleExPluginCommand(const ExCommand &cmd)
return handled;
}
static QRegExp vimPatternToQtPattern(QString needle)
{
/* Trasformations (Vim regexp -> QRegExp):
* \a -> [A-Za-z]
* \A -> [^A-Za-z]
* \h -> [A-Za-z_]
* \H -> [^A-Za-z_]
* \l -> [a-z]
* \L -> [^a-z]
* \o -> [0-7]
* \O -> [^0-7]
* \u -> [A-Z]
* \U -> [^A-Z]
* \x -> [0-9A-Fa-f]
* \X -> [^0-9A-Fa-f]
*
* \< -> \b
* \> -> \b
* [] -> \[\]
* \= -> ?
*
* (...) <-> \(...\)
* {...} <-> \{...\}
* | <-> \|
* ? <-> \?
* + <-> \+
* \{...} -> {...}
*
* \c - set ignorecase for rest
* \C - set noignorecase for rest
*/
// TODO: Set initial value and handle smartcase option.
bool ignorecase = false;
QString pattern;
pattern.reserve(2 * needle.size());
bool escape = false;
bool brace = false;
bool curly = false;
foreach (const QChar &c, needle) {
if (brace) {
brace = false;
if (c == ']') {
pattern.append(_("\\[\\]"));
continue;
} else {
pattern.append('[');
}
}
if (QString("(){}+|?").indexOf(c) != -1) {
if (c == '{') {
curly = escape;
} else if (c == '}' && curly) {
curly = false;
escape = true;
}
if (escape)
escape = false;
else
pattern.append('\\');
pattern.append(c);
} else if (escape) {
// escape expression
escape = false;
if (c == '<' || c == '>')
pattern.append(_("\\b"));
else if (c == 'a')
pattern.append(_("[a-zA-Z]"));
else if (c == 'A')
pattern.append(_("[^a-zA-Z]"));
else if (c == 'h')
pattern.append(_("[A-Za-z_]"));
else if (c == 'H')
pattern.append(_("[^A-Za-z_]"));
else if (c == 'c' || c == 'C')
ignorecase = (c == 'c');
else if (c == 'l')
pattern.append(_("[a-z]"));
else if (c == 'L')
pattern.append(_("[^a-z]"));
else if (c == 'o')
pattern.append(_("[0-7]"));
else if (c == 'O')
pattern.append(_("[^0-7]"));
else if (c == 'u')
pattern.append(_("[A-Z]"));
else if (c == 'U')
pattern.append(_("[^A-Z]"));
else if (c == 'x')
pattern.append(_("[0-9A-Fa-f]"));
else if (c == 'X')
pattern.append(_("[^0-9A-Fa-f]"));
else if (c == '=')
pattern.append(_("?"));
else
pattern.append('\\' + c);
} else {
// unescaped expression
if (c == '\\')
escape = true;
else if (c == '[')
brace = true;
else if (c.isLetter() && ignorecase)
pattern.append('[' + c.toLower() + c.toUpper() + ']');
else
pattern.append(c);
}
}
if (escape)
pattern.append('\\');
else if (brace)
pattern.append('[');
return QRegExp(pattern);
}
void FakeVimHandler::Private::searchBalanced(bool forward, QChar needle, QChar other)
{
int level = 1;
@@ -4074,7 +4073,7 @@ void FakeVimHandler::Private::search(const SearchData &sd)
if (!sd.forward)
flags |= QTextDocument::FindBackward;
QRegExp needleExp = vimPatternToQtPattern(sd.needle);
QRegExp needleExp = vimPatternToQtPattern(sd.needle, hasConfig(ConfigSmartCase));
const int oldLine = cursorLine() - cursorLineOnScreen();
@@ -4135,7 +4134,7 @@ void FakeVimHandler::Private::highlightMatches(const QString &needle)
QTextCursor tc = cursor();
tc.movePosition(StartOfDocument, MoveAnchor);
QRegExp needleExp = vimPatternToQtPattern(needle);
QRegExp needleExp = vimPatternToQtPattern(needle, hasConfig(ConfigSmartCase));
if (!needleExp.isValid()) {
QString error = needleExp.errorString();
showRedMessage(