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support parens in C macros

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closes #454
This commit is contained in:
Andrew Kelley
2017-09-10 00:20:09 -04:00
parent 9dfbdeace6
commit b5d9584e6f
4 changed files with 119 additions and 76 deletions
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18
src/c_tokenizer.cpp
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@@ -114,6 +114,9 @@ static void begin_token(CTokenize *ctok, CTokId id) {
case CTokIdCharLit:
case CTokIdNumLitFloat:
case CTokIdMinus:
case CTokIdLParen:
case CTokIdRParen:
case CTokIdEOF:
break;
}
}
@@ -214,6 +217,18 @@ void tokenize_c_macro(CTokenize *ctok, const uint8_t *c) {
ctok->state = CTokStateFloat;
buf_init_from_str(&ctok->buf, "0.");
break;
case '(':
begin_token(ctok, CTokIdLParen);
end_token(ctok);
break;
case ')':
begin_token(ctok, CTokIdRParen);
end_token(ctok);
break;
case '-':
begin_token(ctok, CTokIdMinus);
end_token(ctok);
break;
default:
return mark_error(ctok);
}
@@ -738,4 +753,7 @@ found_end_of_macro:
}
assert(ctok->cur_tok == nullptr);
begin_token(ctok, CTokIdEOF);
end_token(ctok);
}