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inline parseLine()

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this should be marginally faster and it allows turning a few members
into locals.
This commit is contained in:
Oswald Buddenhagen
2009-07-16 18:11:09 +02:00
parent 67e30ed8c9
commit 81baf03476
1 changed files with 86 additions and 102 deletions
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188
src/shared/proparser/profileevaluator.cpp
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@@ -139,7 +139,6 @@ public:
ProBlock *currentBlock();
void updateItem();
void parseLine(const QString &line);
void insertVariable(const ushort **pCur, const ushort *end);
void insertOperator(const char op);
void insertComment(const QString &comment);
@@ -154,9 +153,6 @@ public:
QString m_proitem;
QString m_pendingComment;
ushort *m_proitemPtr;
bool m_contNextLine;
bool m_inQuote;
int m_parens;
enum StrState { NotStarted, Started, PutSpace };
@@ -287,117 +283,105 @@ bool ProFileEvaluator::Private::read(ProFile *pro, QTextStream *ts)
// Parser state
m_block = 0;
m_commentItem = 0;
m_inQuote = false;
m_parens = 0;
m_contNextLine = false;
m_lineNo = 1;
m_blockstack.clear();
m_blockstack.push(pro);
int parens = 0;
bool inQuote = false;
bool escaped = false;
while (!ts->atEnd()) {
QString line = ts->readLine();
parseLine(line);
++m_lineNo;
}
return true;
}
void ProFileEvaluator::Private::parseLine(const QString &line)
{
const ushort *cur = (const ushort *)line.unicode(),
*end = cur + line.length();
int parens = m_parens;
bool inQuote = m_inQuote;
bool escaped = false;
m_proitem.reserve(line.length());
m_proitemPtr = (ushort *)m_proitem.unicode();
nextItem:
ushort *ptr = m_proitemPtr;
StrState sts = NotStarted;
while (cur < end) {
ushort c = *cur++;
if (c == '#') { // Yep - no escaping possible
m_proitemPtr = ptr;
insertComment(line.right(end - cur).simplified());
goto done;
}
if (!escaped) {
if (c == '\\') {
escaped = true;
goto putch;
} else if (c == '"') {
inQuote = !inQuote;
goto putch;
const ushort *cur = (const ushort *)line.unicode(),
*end = cur + line.length();
m_proitem.reserve(line.length());
m_proitemPtr = (ushort *)m_proitem.unicode();
nextItem:
ushort *ptr = m_proitemPtr;
StrState sts = NotStarted;
while (cur < end) {
ushort c = *cur++;
if (c == '#') { // Yep - no escaping possible
m_proitemPtr = ptr;
insertComment(line.right(end - cur).simplified());
goto done;
}
} else {
escaped = false;
}
if (!inQuote) {
if (c == '(') {
++parens;
} else if (c == ')') {
--parens;
} else if (!parens) {
if (m_block && (m_block->blockKind() & ProBlock::VariableKind)) {
if (c == ' ' || c == '\t') {
m_proitemPtr = ptr;
updateItem();
goto nextItem;
}
} else {
if (c == ':') {
m_proitemPtr = ptr;
enterScope(false);
goto nextItem;
}
if (c == '{') {
m_proitemPtr = ptr;
enterScope(true);
goto nextItem;
}
if (c == '}') {
m_proitemPtr = ptr;
leaveScope();
goto nextItem;
}
if (c == '=') {
m_proitemPtr = ptr;
insertVariable(&cur, end);
goto nextItem;
}
if (c == '|' || c == '!') {
m_proitemPtr = ptr;
insertOperator(c);
goto nextItem;
if (!escaped) {
if (c == '\\') {
escaped = true;
goto putch;
} else if (c == '"') {
inQuote = !inQuote;
goto putch;
}
} else {
escaped = false;
}
if (!inQuote) {
if (c == '(') {
++parens;
} else if (c == ')') {
--parens;
} else if (!parens) {
if (m_block && (m_block->blockKind() & ProBlock::VariableKind)) {
if (c == ' ' || c == '\t') {
m_proitemPtr = ptr;
updateItem();
goto nextItem;
}
} else {
if (c == ':') {
m_proitemPtr = ptr;
enterScope(false);
goto nextItem;
}
if (c == '{') {
m_proitemPtr = ptr;
enterScope(true);
goto nextItem;
}
if (c == '}') {
m_proitemPtr = ptr;
leaveScope();
goto nextItem;
}
if (c == '=') {
m_proitemPtr = ptr;
insertVariable(&cur, end);
goto nextItem;
}
if (c == '|' || c == '!') {
m_proitemPtr = ptr;
insertOperator(c);
goto nextItem;
}
}
}
}
}
if (c == ' ' || c == '\t') {
if (sts == Started)
sts = PutSpace;
} else {
putch:
if (sts == PutSpace)
*ptr++ = ' ';
*ptr++ = c;
sts = Started;
if (c == ' ' || c == '\t') {
if (sts == Started)
sts = PutSpace;
} else {
putch:
if (sts == PutSpace)
*ptr++ = ' ';
*ptr++ = c;
sts = Started;
}
}
m_proitemPtr = ptr;
done:
if (escaped) {
--m_proitemPtr;
updateItem();
} else {
updateItem();
finalizeBlock();
}
++m_lineNo;
}
m_proitemPtr = ptr;
m_contNextLine = escaped;
done:
m_inQuote = inQuote;
m_parens = parens;
if (m_contNextLine) {
--m_proitemPtr;
updateItem();
} else {
updateItem();
finalizeBlock();
}
return true;
}
void ProFileEvaluator::Private::finalizeBlock()