From ca6b0d72aca18253699dafb3bf501c84023e5cc0 Mon Sep 17 00:00:00 2001
From: Hiltjo Posthuma <hiltjo@codemadness.org>
Date: Mon, 7 Feb 2022 00:21:12 +0100
Subject: [PATCH] improve performance of case-insensitive matching

---
 dmenu.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/dmenu.c b/dmenu.c
index 4bcc952..c62d178 100644
--- a/dmenu.c
+++ b/dmenu.c
@@ -112,17 +112,6 @@ cleanup(void)
 	XCloseDisplay(dpy);
 }
 
-static char *
-cistrstr(const char *s, const char *sub)
-{
-	size_t len;
-
-	for (len = strlen(sub); *s; s++)
-		if (!strncasecmp(s, sub, len))
-			return (char *)s;
-	return NULL;
-}
-
 static int
 drawitem(struct item *item, int x, int y, int w)
 {
@@ -748,6 +737,8 @@ main(int argc, char *argv[])
 		else if (!strcmp(argv[i], "-c"))   /* centers dmenu on screen */
 			centered = 1;
 		else if (!strcmp(argv[i], "-i")) { /* case-insensitive item matching -- only for compatibility with scripts that uses this flag (in this build case-insensitive is the default) */
+			fstrncmp = strncasecmp;
+			fstrstr = strcasestr;
 		}
 		else if (!strcmp(argv[i], "-s")) { /* case-sensitive item matching */
 			fstrncmp = strncmp;