Ilyes Gouta wrote:
Basically what it's done is enumerating all the possibilities for the
construction of the for loop. Is it the only way do things clearly and
properly?
There's no 'clear and proper' way to do this; do whatever's best for
you, try it, fix it, repeat. Here's what I do:
iteration_statement
...
| FOR '(' loop_init ';' loop_cond_opt ';' loop_term ')' loop_body {
...
}
;
loop_init
: /* nothing */ { ... }
| full_expr { ... }
;
loop_cond_opt
: /* nothing */ { ... }
| full_expr { ... }
;
loop_term
: /* nothing */ { ... }
| full_expr { ... }
;
loop_body : ... ;
You can trivially change or fix the grammar; the real problem is the
actions, and how you construct the AST. You'll also find that C grammars
aren't much use to you, because assignments aren't expressions in your
language.
Evan
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