diff options
author | Roberto Raggi <roberto.raggi@nokia.com> | 2011-07-20 15:08:05 +0200 |
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committer | Qt by Nokia <qt-info@nokia.com> | 2011-08-30 13:18:28 +0200 |
commit | 6f7b0451411174103dcf6649c94ccbcdbd8d9616 (patch) | |
tree | 9cd82dcef613ef9bca803359203470b451cd5b3b /src/declarative/qml/parser/qdeclarativejslexer.cpp | |
parent | a6da3b26f5959986010deb85703cd51a0edb48e0 (diff) |
Improved parsing of numeric literals
Change-Id: Id02b5b0b0ab590b7ea5d20098472459e1fd986a6
Reviewed-on: http://codereview.qt.nokia.com/3755
Reviewed-by: Roberto Raggi <roberto.raggi@nokia.com>
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Diffstat (limited to 'src/declarative/qml/parser/qdeclarativejslexer.cpp')
-rw-r--r-- | src/declarative/qml/parser/qdeclarativejslexer.cpp | 99 |
1 files changed, 83 insertions, 16 deletions
diff --git a/src/declarative/qml/parser/qdeclarativejslexer.cpp b/src/declarative/qml/parser/qdeclarativejslexer.cpp index ac4be34765..980c15cf48 100644 --- a/src/declarative/qml/parser/qdeclarativejslexer.cpp +++ b/src/declarative/qml/parser/qdeclarativejslexer.cpp @@ -407,26 +407,40 @@ again: if (_char.isDigit()) { QByteArray chars; chars.reserve(32); - while (_char.isLetterOrNumber() || _char == QLatin1Char('.')) { - if (_char == QLatin1Char('e') || _char == QLatin1Char('E')) { + + chars += ch.unicode(); // append the `.' + + while (_char.isDigit()) { + chars += _char.unicode(); + scanChar(); + } + + if (_char.toLower() == QLatin1Char('e')) { + if (_codePtr[0].isDigit() || ((_codePtr[0] == QLatin1Char('+') || _codePtr[0] == QLatin1Char('-')) && + _codePtr[1].isDigit())) { + chars += _char.unicode(); - scanChar(); // skip e + scanChar(); // consume `e' if (_char == QLatin1Char('+') || _char == QLatin1Char('-')) { chars += _char.unicode(); - scanChar(); // skip +/- + scanChar(); // consume the sign + } + + while (_char.isDigit()) { + chars += _char.unicode(); + scanChar(); } - } else { - chars += _char.unicode(); - scanChar(); } } + const char *begin = chars.constData(); const char *end = 0; bool ok = false; + _tokenValue = qstrtod(begin, &end, &ok); - if (! ok || end != chars.end()) { + if (end != chars.end()) { _errorCode = IllegalExponentIndicator; _errorMessage = QCoreApplication::translate("QDeclarativeParser", "Illegal syntax for exponential number"); return T_ERROR; @@ -676,27 +690,80 @@ again: chars.reserve(32); chars += ch.unicode(); - while (_char.isLetterOrNumber() || _char == QLatin1Char('.')) { - if (_char == QLatin1Char('e') || _char == QLatin1Char('E')) { + if (ch == QLatin1Char('0') && (_char == 'x' || _char == 'X')) { + // parse hex integer literal + + chars += _char.unicode(); + scanChar(); // consume `x' + + while (isHexDigit(_char)) { chars += _char.unicode(); - scanChar(); // skip e + scanChar(); + } + + _tokenValue = integerFromString(chars.constData(), chars.size(), 16); + return T_NUMERIC_LITERAL; + } + + // decimal integer literal + while (_char.isDigit()) { + chars += _char.unicode(); + scanChar(); // consume the digit + } + + if (_char == QLatin1Char('.')) { + chars += _char.unicode(); + scanChar(); // consume `.' + + while (_char.isDigit()) { + chars += _char.unicode(); + scanChar(); + } + + if (_char.toLower() == QLatin1Char('e')) { + if (_codePtr[0].isDigit() || ((_codePtr[0] == QLatin1Char('+') || _codePtr[0] == QLatin1Char('-')) && + _codePtr[1].isDigit())) { - if (_char == QLatin1Char('+') || _char == QLatin1Char('-')) { chars += _char.unicode(); - scanChar(); // skip +/- + scanChar(); // consume `e' + + if (_char == QLatin1Char('+') || _char == QLatin1Char('-')) { + chars += _char.unicode(); + scanChar(); // consume the sign + } + + while (_char.isDigit()) { + chars += _char.unicode(); + scanChar(); + } } - } else { + } + } else if (_char.toLower() == QLatin1Char('e')) { + if (_codePtr[0].isDigit() || ((_codePtr[0] == QLatin1Char('+') || _codePtr[0] == QLatin1Char('-')) && + _codePtr[1].isDigit())) { + chars += _char.unicode(); - scanChar(); + scanChar(); // consume `e' + + if (_char == QLatin1Char('+') || _char == QLatin1Char('-')) { + chars += _char.unicode(); + scanChar(); // consume the sign + } + + while (_char.isDigit()) { + chars += _char.unicode(); + scanChar(); + } } } + const char *begin = chars.constData(); const char *end = 0; bool ok = false; _tokenValue = qstrtod(begin, &end, &ok); - if (! ok || end != chars.end()) { + if (end != chars.end()) { _errorCode = IllegalExponentIndicator; _errorMessage = QCoreApplication::translate("QDeclarativeParser", "Illegal syntax for exponential number"); return T_ERROR; |