public static boolean parseAmbiguousSigil(PsiBuilder b, int l, IElementType sigilTokenType) {
IElementType tokenType = b.getTokenType();
if (tokenType == sigilTokenType) {
if (PerlParserDefinition.WHITE_SPACE_AND_COMMENTS.contains(b.rawLookup(1))
&& b.lookAhead(1) != LEFT_BRACE) // space disallowed after * or % if it's not a cast
return false;
b.advanceLexer();
return true;
}
return false;
}
/**
* Return token ahead of current, skips spaces and comments
*
* @param steps positive or negative steps number to get token
* @return token data: type and text
*/
public PerlTokenData lookupToken(int steps) {
assert steps != 0;
int rawStep = 0;
int step = steps / Math.abs(steps);
IElementType rawTokenType = null;
while (steps != 0) {
rawStep += step;
rawTokenType = rawLookup(rawStep);
// reached end
if (rawTokenType == null) return null;
if (!PerlParserDefinition.WHITE_SPACE_AND_COMMENTS.contains(rawTokenType)) steps -= step;
}
// fixme crushes on quick s typing
return new PerlTokenData(
rawTokenType,
getOriginalText()
.subSequence(rawTokenTypeStart(rawStep), rawTokenTypeStart(rawStep + 1))
.toString());
}
