-
/*
* brkstring.c -- (destructively) split a string into
* -- an array of substrings
/* allocate this number of pointers at a time */
#define NUMBROKEN 256
-static char **broken = NULL; /* array of substring start addresses */
-static int len = 0; /* current size of "broken" */
+static char **broken = NULL; /* array of substring start addresses */
+static int len = 0; /* current size of "broken" */
/*
* static prototypes
char **
brkstring (char *str, char *brksep, char *brkterm)
{
- int i;
- char c, *s;
+ int i;
+ char c, *s;
- /* allocate initial space for pointers on first call */
- if (!broken) {
- len = NUMBROKEN;
- broken = (char **) mh_xmalloc ((size_t) (len * sizeof(*broken)));
- }
+ /* allocate initial space for pointers on first call */
+ if (!broken) {
+ len = NUMBROKEN;
+ broken = (char **) mh_xmalloc ((size_t) (len * sizeof(*broken)));
+ }
- /*
- * scan string, replacing separators with zeroes
- * and enter start addresses in "broken".
- */
- s = str;
+ /*
+ * scan string, replacing separators with zeroes
+ * and enter start addresses in "broken".
+ */
+ s = str;
- for (i = 0;; i++) {
+ for (i = 0;; i++) {
/* enlarge pointer array, if necessary */
if (i >= len) {
- len += NUMBROKEN;
- broken = mh_xrealloc (broken, (size_t) (len * sizeof(*broken)));
+ len += NUMBROKEN;
+ broken = mh_xrealloc (broken, (size_t) (len * sizeof(*broken)));
}
while (brkany (c = *s, brksep))
- *s++ = '\0';
+ *s++ = '\0';
/*
* we are either at the end of the string, or the
* terminator found has been found, so finish up.
*/
if (!c || brkany (c, brkterm)) {
- *s = '\0';
- broken[i] = NULL;
- return broken;
+ *s = '\0';
+ broken[i] = NULL;
+ return broken;
}
/* set next start addr */
broken[i] = s;
while ((c = *++s) && !brkany (c, brksep) && !brkany (c, brkterm))
- ; /* empty body */
- }
+ ; /* empty body */
+ }
- return broken; /* NOT REACHED */
+ return broken; /* NOT REACHED */
}
static int
brkany (char c, char *str)
{
- char *s;
+ char *s;
- if (str) {
+ if (str) {
for (s = str; *s; s++)
- if (c == *s)
+ if (c == *s)
return 1;
- }
- return 0;
+ }
+ return 0;
}