From 3a72c90c2f7348f3e989a8cbe557a99c6de0e026 Mon Sep 17 00:00:00 2001
From: Hiltjo Posthuma <hiltjo@codemadness.org>
Date: Sun, 21 Jun 2015 00:20:28 +0200
Subject: string_print: dont print control chars

---
 sfeed.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sfeed.c b/sfeed.c
index 07e49c9..dcc4ce5 100644
--- a/sfeed.c
+++ b/sfeed.c
@@ -328,14 +328,15 @@ string_print(String *s)
 	e = trimend(p);
 
 	for(; *p && p != e; p++) {
-		if(ISWSNOSPACE(*p)) {
+		/* isspace(c) && c != ' '. */
+		if(((unsigned)*p - '\t') < 5) {
 			switch(*p) {
 			case '\n': fputs("\\n", stdout); break;
 			case '\\': fputs("\\\\", stdout); break;
 			case '\t': fputs("\\t", stdout); break;
 			default: break; /* ignore other whitespace chars */
 			}
-		} else {
+		} else if(!iscntrl((int)*p)) { /* ignore control chars */
 			putchar(*p);
 		}
 	}
-- 
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