ref: e2136d60b2db6c714a0c7c84f38bbcad5c519b71
parent: 74e40654e64f321399f3e2bb04019f83c96ce6fa
author: Eldred Habert <eldredhabert0@gmail.com>
date: Mon Oct 3 12:50:32 EDT 2022
Print a more user-friendly error message for leftover diff marks (#1089)
--- a/src/asm/parser.y
+++ b/src/asm/parser.y
@@ -690,17 +690,19 @@
;
lines : %empty
- | lines line
+ | lines opt_diff_mark line
;
endofline : T_NEWLINE | T_EOB
;
-plain_directive : label
- | label cpu_command
- | label macro
- | label directive
- | assignment_directive
+opt_diff_mark : %empty // OK
+ | T_OP_ADD {+ error("syntax error, unexpected + at the beginning of the line (is it a leftover diff mark?)\n");+ }
+ | T_OP_SUB {+ error("syntax error, unexpected - at the beginning of the line (is it a leftover diff mark?)\n");+ }
;
line : plain_directive endofline
@@ -784,6 +786,13 @@
lexer_ReachELSEBlock();
}
}
+;
+
+plain_directive : label
+ | label cpu_command
+ | label macro
+ | label directive
+ | assignment_directive
;
endc : T_POP_ENDC {