commit 0ef9a5c09482649cf0cc6768ed6fc640b4ed2a0a
author zeertzjq <zeertzjq@outlook.com> Tue Jan 17 21:38:25 2023 +0000
committer Bram Moolenaar <Bram@vim.org> Tue Jan 17 21:38:25 2023 +0000
tree ae5d05622365b8043bf3068e07ad48afd64ca8bb
parent 541c87c808df91b55e51fedc4987152a3edfe80d

patch 9.0.1215: using isalpha() adds dependency on current locale

Problem:    Using isalpha() adds dependency on current locale.
Solution:   Do not use isalpha() for recognizing a URL or the end of an Ex
            command. (closes #11835)

src/misc1.c

diff --git a/src/misc1.c b/src/misc1.c
index 019bbaf..d369f2a 100644
--- a/src/misc1.c
+++ b/src/misc1.c
@@ -2699,11 +2699,11 @@
     // non-URL text.
 
     // first character must be alpha
-    if (!isalpha(*fname))
+    if (!ASCII_ISALPHA(*fname))
 	return 0;
 
     // check body: alpha or dash
-    for (p = fname + 1; (isalpha(*p) || (*p == '-')); ++p)
+    for (p = fname + 1; (ASCII_ISALPHA(*p) || (*p == '-')); ++p)
 	;
 
     // check last char is not a dash