From 2b915a42f6665b4110338cfde30eedc55abe7f3c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?John=20Ankarstr=C3=B6m?= <john@ankarstrom.se>
Date: Sat, 18 Sep 2021 19:24:17 +0200
Subject: mktpl: Limit string literals to 509 characters (C89)

---
 mktpl/mktpl.lex | 12 ++++++++++--
 1 file 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");
-- 
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