mktpl: Limit string literals to 509 characters (C89)

1 files changed, 10 insertions, 2 deletions

diff --git a/mktpl/mktpl.lex b/mktpl/mktpl.lex
index f0674b7..e184c0e 100644
--- a/mktpl/mktpl.lex
+++ b/mktpl/mktpl.lex
@@ -65,12 +65,20 @@ eval()
 void
 text()
 {
-	int i;
+	int i, ofs;
 	
 	if(!len) return;
 	
 	printf("printf(\"");
-	for(i = 0; i < len; i++){
+	for(i = ofs = 0; i < len; i++){
+		/*
+		 * C89 compilers need only support 509-length
+		 * string literals.
+		 */
+		if(i-ofs >= 509){
+			printf("\");\nprintf(\"");
+			ofs = i;
+		}
 		if(buf[i] == '\\') printf("\\\\");
 		else if(buf[i] == '"') printf("\\\"");
 		else if(buf[i] == '\n') printf("\\n");