uxn

commit a014cd8da9c046635bc11c3fc87723ec5c6b73ea
parent 1ac7c45d107d21424b041962f6f2a5f794f4f24d
Author: phoebos <ben@bvnf.space>
Date:   Sun,  5 Jun 2022 22:33:57 +0100

(uxnasm) only ignore [ or ] if it is a whole token

Currently, tokens beginning with a [ or ] character are completely
ignored, which forbids a macro from beginning with these characters.
Specifically, a macro can be declared eg. as `%[x { ... }` but cannot be
dereferenced as `[x`.
This patch only ignores these tokens if they have a length of 1;
otherwise the switch falls through to the default case.

Diffstat:
M
src/uxnasm.c
 | 
4
++--

1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/uxnasm.c b/src/uxnasm.c
@@ -343,8 +343,8 @@ parse(char *w, FILE *f)
 		while((c = w[++i]))
 			if(!writebyte(c)) return 0;
 		break;
-	case '[': break; /* ignored */
-	case ']': break; /* ignored */
+	case '[': if (slen(w) == 1) break; /* else FALLTHROUGH */
+	case ']': if (slen(w) == 1) break; /* else FALLTHROUGH */
 	default:
 		/* opcode */
 		if(findopcode(w) || scmp(w, "BRK", 4)) {