[src/trunk]: src/usr.bin/make make(1): reduce scope of local variables in brk...

[rillig <rillig%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/af8f722ca347
branches:  trunk
changeset: 1012511:af8f722ca347
user:      rillig <rillig%NetBSD.org@localhost>
date:      Sat Aug 01 10:44:23 2020 +0000

description:
make(1): reduce scope of local variables in brk_string

This also removes the unused assignment to words_cap.

diffstat:

 usr.bin/make/str.c |  30 ++++++++++++------------------
 1 files changed, 12 insertions(+), 18 deletions(-)

diffs (68 lines):

diff -r 6abf71db6e47 -r af8f722ca347 usr.bin/make/str.c
--- a/usr.bin/make/str.c        Sat Aug 01 09:55:00 2020 +0000
+++ b/usr.bin/make/str.c        Sat Aug 01 10:44:23 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: str.c,v 1.53 2020/07/26 16:51:53 rillig Exp $  */
+/*     $NetBSD: str.c,v 1.54 2020/08/01 10:44:23 rillig Exp $  */
 
 /*-
  * Copyright (c) 1988, 1989, 1990, 1993
@@ -69,14 +69,14 @@
  */
 
 #ifndef MAKE_NATIVE
-static char rcsid[] = "$NetBSD: str.c,v 1.53 2020/07/26 16:51:53 rillig Exp $";
+static char rcsid[] = "$NetBSD: str.c,v 1.54 2020/08/01 10:44:23 rillig Exp $";
 #else
 #include <sys/cdefs.h>
 #ifndef lint
 #if 0
 static char     sccsid[] = "@(#)str.c  5.8 (Berkeley) 6/1/90";
 #else
-__RCSID("$NetBSD: str.c,v 1.53 2020/07/26 16:51:53 rillig Exp $");
+__RCSID("$NetBSD: str.c,v 1.54 2020/08/01 10:44:23 rillig Exp $");
 #endif
 #endif                         /* not lint */
 #endif
@@ -142,32 +142,26 @@
 brk_string(const char *str, int *out_words_len, Boolean expand,
        char **out_words_buf)
 {
-       char inquote;
-       const char *str_p;
-       size_t str_len;
-       char **words;
-       int words_len;
-       int words_cap = 50;
-       char *words_buf, *word_start, *word_end;
-
        /* skip leading space chars. */
        for (; *str == ' ' || *str == '\t'; ++str)
                continue;
 
        /* words_buf holds the words, separated by '\0'. */
-       str_len = strlen(str);
-       words_buf = bmake_malloc(strlen(str) + 1);
+       size_t str_len = strlen(str);
+       char *words_buf = bmake_malloc(strlen(str) + 1);
 
-       words_cap = MAX((str_len / 5), 50);
-       words = bmake_malloc((words_cap + 1) * sizeof(char *));
+       int words_cap = MAX((str_len / 5), 50);
+       char **words = bmake_malloc((words_cap + 1) * sizeof(char *));
 
        /*
         * copy the string; at the same time, parse backslashes,
         * quotes and build the word list.
         */
-       words_len = 0;
-       inquote = '\0';
-       word_start = word_end = words_buf;
+       int words_len = 0;
+       char inquote = '\0';
+       char *word_start = words_buf;
+       char *word_end = words_buf;
+       const char *str_p;
        for (str_p = str;; ++str_p) {
                char ch = *str_p;
                switch(ch) {