[hackers] [dmenu] improve performance of case-insensitive matching || Hiltjo Posthuma

[git]

commit eb96af27f4059c93d7e000e910b71d74829a239b
Author:     Hiltjo Posthuma <hil...@codemadness.org>
AuthorDate: Mon Feb 7 00:21:12 2022 +0100
Commit:     Hiltjo Posthuma <hil...@codemadness.org>
CommitDate: Mon Feb 7 00:21:12 2022 +0100

    improve performance of case-insensitive matching

diff --git a/dmenu.c b/dmenu.c
index 98507d9..d06bea1 100644
--- a/dmenu.c
+++ b/dmenu.c
@@ -102,17 +102,6 @@ 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)
 {
@@ -722,7 +711,7 @@ main(int argc, char *argv[])
                        fast = 1;
                else if (!strcmp(argv[i], "-i")) { /* case-insensitive item 
matching */
                        fstrncmp = strncasecmp;
-                       fstrstr = cistrstr;
+                       fstrstr = strcasestr;
                } else if (i + 1 == argc)
                        usage();
                /* these options take one argument */