void SemanticMarkupParser::parse(const QString& text) {
mCursorInsideTag = false;
mOpenElements.clear();
mOpenElementsAtCursor.clear();
mNotClosedChildElements.clear();
QRegExp startTagRegExp("<\\s*(\\w+)\\s*((\\w+=\"[^\"]*\"\\s*)*)>");
QRegExp endTagRegExp("</\\s*(\\w+)\\s*>");
QRegExp emptyTagRegExp("<\\s*(\\w+)\\s*((\\w+=\"[^\"]*\"\\s*)*)/>");
QRegExp tagRegExp(startTagRegExp.pattern() + '|' +
endTagRegExp.pattern() + '|' +
emptyTagRegExp.pattern());
bool parsingReachedCursor = false;
int parsingIndex = tagRegExp.indexIn(text);
while (parsingIndex >= 0) {
QString tag = tagRegExp.capturedTexts().at(0);
if (mCursorIndex > parsingIndex &&
mCursorIndex < parsingIndex + tagRegExp.matchedLength()) {
mCursorInsideTag = true;
mOpenElementsAtCursor.clear();
return;
}
if (!parsingReachedCursor && parsingIndex >= mCursorIndex) {
parsingReachedCursor = true;
mOpenElementsAtCursor = mOpenElements;
}
if (startTagRegExp.exactMatch(tag)) {
StartTag startTag;
startTag.mName = startTagRegExp.capturedTexts().at(1);
startTag.mAttributes = startTagRegExp.capturedTexts().at(2);
startTag.mIndex = parsingIndex;
mOpenElements.insert(0, startTag);
} else if (endTagRegExp.exactMatch(tag)) {
QString endTagName = endTagRegExp.capturedTexts().at(1);
int endElementIndex = indexOf(mOpenElements, endTagName);
if (endElementIndex >= 0) {
int index = 0;
while (index < endElementIndex) {
mNotClosedChildElements.append(mOpenElements.first());
mOpenElements.removeFirst();
index++;
}
mOpenElements.removeFirst();
}
}
parsingIndex = parsingIndex + tagRegExp.matchedLength();
parsingIndex = tagRegExp.indexIn(text, parsingIndex);
}
if (!parsingReachedCursor) {
mOpenElementsAtCursor = mOpenElements;
}
}
void cleanupXML(QTextStream &input, QTextStream &output) {
QRegExp
filenameRegExp("filename=\"[^\"]*\""),
nameRegExp("name=\"[^\"]*\""),
tagRegExp("^\\s*<([a-zA-Z]+) "),
leadingSpaces("^ *"),
closeTag("^\\s*</");
bool inComment = false, hasContents = false;
while (!input.atEnd()) {
QString line = input.readLine();
bool startComment = line.contains("<!--");
bool endComment = line.contains("-->");
if (startComment)
inComment = true;
if (endComment)
inComment = false;
if (inComment || endComment) {
if (startComment) {
/* Turn leading spaces into tabs */
if (leadingSpaces.indexIn(line) == 0)
line = QString('\t').repeated(leadingSpaces.matchedLength()) +
line.mid(leadingSpaces.matchedLength());
}
output << line << endl;
continue;
}
/* Make sure that the name attribute is always the first one */
int tagMatch = tagRegExp.indexIn(line),
tagLength = tagRegExp.matchedLength();
int nameMatch = nameRegExp.indexIn(line),
filenameMatch = filenameRegExp.indexIn(line),
nameLength = nameRegExp.matchedLength();
if (tagMatch != -1 && nameMatch != -1 && filenameMatch == -1) {
QString a = line.mid(tagLength, nameMatch-tagLength).trimmed(),
b = line.mid(nameMatch+nameLength).trimmed();
line = line.left(tagLength) + line.mid(nameMatch, nameLength);
if (a.length() > 0)
line += " " + a;
if (b.length() > 0)
line += " " + b;
}
/* Add an extra newline if this is an object tag, and if there
have been siblings before it */
if (tagMatch != -1) {
const QString &el = tagRegExp.cap(1);
bool isObject = true;
isObject &= (el != "string");
isObject &= (el != "integer");
isObject &= (el != "float");
isObject &= (el != "boolean");
isObject &= (el != "vector");
isObject &= (el != "point");
isObject &= (el != "transform");
isObject &= (el != "spectrum");
isObject &= (el != "rgb");
isObject &= (el != "scale");
isObject &= (el != "translate");
isObject &= (el != "rotate");
isObject &= (el != "lookAt");
isObject &= (el != "matrix");
if (isObject && hasContents) {
output << endl;
hasContents = false;
}
if (!isObject)
hasContents = true;
}
/* Turn leading spaces into tabs */
if (leadingSpaces.indexIn(line) == 0)
line = QString('\t').repeated(leadingSpaces.matchedLength()) +
line.mid(leadingSpaces.matchedLength());
/* Remove ugly spaces */
if (line.endsWith(" />")) {
line = line.left(line.size()-4) + QString("/>");
hasContents = true;
} else if (line.endsWith(" />")) {
line = line.left(line.size()-3) + QString("/>");
hasContents = true;
} else if (line.endsWith("/>")) {
hasContents = true;
} else if (line.endsWith(" >")) {
line = line.left(line.size()-2) + QString(">");
} else if (line.endsWith("?>")) {
hasContents = true;
}
if (closeTag.indexIn(line) == 0)
hasContents = true;
output << line << endl;
}
}
