Simplify getprec() by using strchr(3) and strspn(3).

Part of NetBSD's jot r1.20 by dsl.

ok jca

diff --git a/usr.bin/jot/jot.c b/usr.bin/jot/jot.c
index 2235bfc..805f2f8 100644 (file)
--- a/usr.bin/jot/jot.c
+++ b/usr.bin/jot/jot.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: jot.c,v 1.33 2016/08/12 21:31:11 tb Exp $     */
+/*     $OpenBSD: jot.c,v 1.34 2016/08/12 23:29:59 tb Exp $     */
 /*     $NetBSD: jot.c,v 1.3 1994/12/02 20:29:43 pk Exp $       */
 
 /*-
@@ -348,18 +348,9 @@ usage(void)
 static int
 getprec(char *s)
 {
-       char    *p;
-       char    *q;
-
-       for (p = s; *p != '\0'; p++)
-               if (*p == '.')
-                       break;
-       if (*p == '\0')
+       if ((s = strchr(s, '.')) == NULL)
                return (0);
-       for (q = ++p; *p != '\0'; p++)
-               if (!isdigit((unsigned char)*p))
-                       break;
-       return (p - q);
+       return (strspn(s + 1, "0123456789"));
 }
 
 static void