commit 2b3c430bcea5d8c40b218c7e2a71d261822c6a52
author René Scharfe <l.s.r@web.de> Sat Feb 22 19:51:13 2020 +0100
committer Junio C Hamano <gitster@pobox.com> Mon Feb 24 09:30:29 2020 -0800
tree 82d75d9700fa46318f609e0a63eb2d6987cc2411
parent d0654dc308b0ba76dd8ed7bbb33c8d8f7aacd783

quote: use isalnum() to check for alphanumeric characters

isalnum(c) is equivalent to isalpha(c) || isdigit(c), so use the
former instead.  The result is shorter, simpler and slightly more
efficient.

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

quote.c

diff --git a/quote.c b/quote.c
index 24a58ba..bcc0dbc 100644
--- a/quote.c
+++ b/quote.c
@@ -55,7 +55,7 @@
 	}
 
 	for (p = src; *p; p++) {
-		if (!isalpha(*p) && !isdigit(*p) && !strchr(ok_punct, *p)) {
+		if (!isalnum(*p) && !strchr(ok_punct, *p)) {
 			sq_quote_buf(dst, src);
 			return;
 		}