wrong double-quote token string in C output

[bernstei]

If you define a grammar with a double-quote " token and try to produce C output, the string it produces is """, rather than "\"", which confuses the C compiler. If you run the python script in the attached zip file it will produce the corresponding grammar C source (also attached), which reproduces the issue on lines 25 and 27.

quote_bug_grammar.zip

[bernstei]

One way to fix this would be to replace the line in the token.py _export_c() definition that writes the quoted string (line 41, I think) with a function that converts the potentially arbitrary string to a valid C string literal, but I don't know where else in the code this functionality might also be useful.

[joente]

@bernstei , thanks for finding this issue. It seems to be a problem with any export, not only the export to C. Both Token and Tokens (and potentially also Keyword when such character can be a part of a keyword) are affected.

I've updated the master branch with a fix, version 1.3.3-alpha-0 (1.3.3a0), can you test if this solved the issue?

[bernstei]

Thanks, I'll take a look.

[bernstei]

Yes, indeed, it fixes our problem. Thanks for the super-quick response.