I'm trying to understand flex/bison, but the documentation is a bit difficult for me, and I've probably grossly misunderstood something. Here's a test case: http://namakajiri.net/misc/bison_charlit_test/
File "a" contains the single character 'a'. "foo.y" has a trivial grammar like this:
%%
file: 'a' ;
The generated parser can't parse file "a"; it gives a syntax error.
The grammar "bar.y" is almost the same, only I changed the character literal for a named token:
%token TOK_A;
%%
file: TOK_A;
and then in bar.lex:
a { return TOK_A; }
This one works just fine.
What am I doing wrong in trying to use character literals directly as bison terminals, like in the docs?
I'd like my grammar to look like "statement: selector '{' property ':' value ';' '}'" and not "statement: selector LBRACE property COLON value SEMIC RBRACE"...
I'm running bison 2.5 and flex 2.5.35 in debian wheezy.