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Replace index_in_[sub]str_array with index_in_[sub]strings,

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which scans thru "abc\0def\0123\0\0" type strings. Saves 250 bytes.

   text    data     bss     dec     hex filename
 781266    1328   11844  794438   c1f46 busybox_old
 781010    1328   11844  794182   c1e46 busybox_unstripped
This commit is contained in:
Denis Vlasenko
2007-07-24 15:54:42 +00:00
parent bcb66ec22e
commit 990d0f63ee
43 changed files with 352 additions and 340 deletions
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33
libbb/compare_string_array.c
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@ -19,8 +19,23 @@ int index_in_str_array(const char * const string_array[], const char *key)
return -1;
}
int index_in_strings(const char *strings, const char *key)
{
int idx = 0;
while (strings[0]) {
if (strcmp(strings, key) == 0) {
return idx;
}
strings += strlen(strings) + 1; /* skip NUL */
idx++;
}
return -1;
}
/* returns the array index of the string, even if it matches only a beginning */
/* (index of first match is returned, or -1) */
#ifdef UNUSED
int index_in_substr_array(const char * const string_array[], const char *key)
{
int i;
@ -34,3 +49,21 @@ int index_in_substr_array(const char * const string_array[], const char *key)
}
return -1;
}
#endif
int index_in_substrings(const char *strings, const char *key)
{
int len = strlen(key);
if (len) {
int idx = 0;
while (strings[0]) {
if (strncmp(strings, key, len) == 0) {
return idx;
}
strings += strlen(strings) + 1; /* skip NUL */
idx++;
}
}
return -1;
}