Parsing C code does not always work inside a yacc grammar

[thoni56]

Although "extract function" is presented as an alternative when refactoring having selected a few lines in a semantic action in a yacc file, the actual refactoring does not happen.

To re-create:

• select a few lines in a semantic rule in a yacc file
• press F11 (refactor)
• select "Extract function"
• nothing happens

Either the choice should not be available (easier) or c-xrefactory should be able to extract a function in a yacc file (much, much harder since there are the semantic attribute references ($$.x) and there is no "natural" place to put the extracted function.

[thoni56]

I think c-xref actually misses parsing C code in Yacc files under certain circumstances. E.g. a rename might miss some occurrences.

Look at java_parser.y:1935:

 mh->u.type->u.m.signature = ....

F6 gives "no symbol"...