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test: add a bunch of strv helpers

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Taken from libinput

Part-of: <https://gitlab.freedesktop.org/libinput/libei/-/merge_requests/337>
This commit is contained in:
Peter Hutterer 2025-06-13 16:33:23 +10:00
parent efdc58e094
commit dbeff9a90d
2 changed files with 87 additions and 0 deletions
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80
src/util-strings.c
View file

@ -220,6 +220,86 @@ strreplace(const char *string, const char *separator, const char *replacement)
return tmp;
}
size_t
strv_len(char **strv)
{
if (!strv)
return 0;
size_t size = 1;
while (*strv) {
size++;
strv++;
}
return size;
}
char **
strv_append_take(char **strv, char **str)
{
if (str && *str) {
size_t len = max(strv_len(strv) + 1, 2);
char **s = realloc(strv, len * sizeof(*strv));
if (!s)
abort();
s[len - 1] = NULL;
s[len - 2] = *str;
*str = NULL;
return s;
} else {
return strv;
}
}
char **
strv_append_strdup(char **strv, const char *str)
{
char *dup = xstrdup(str);
return strv_append_take(strv, &dup);
}
bool
strv_find(char **strv, const char *needle, size_t *index_out)
{
if (!strv)
return false;
size_t index = 0;
char **s = strv;
while (*s != NULL) {
if (streq(*s, needle)) {
if (index_out)
*index_out = index;
return true;
}
s++;
index++;
}
return false;
}
bool
strv_find_substring(char **strv, const char *needle, size_t *index_out)
{
if (!strv || !needle)
return false;
size_t index = 0;
char **s = strv;
while (*s != NULL) {
if (strstr(*s, needle)) {
if (index_out)
*index_out = index;
return true;
}
s++;
index++;
}
return false;
}
char **
strv_from_mem(const uint8_t *buffer, size_t sz, size_t stride)

7
src/util-strings.h
View file

@ -254,9 +254,16 @@ xatod(const char *str, double *val)
return true;
}
size_t strv_len(char **strv);
/* Takes ownership of the string and appends it to strv, s is set to NULL */
char **strv_append_take(char **strv, char **s);
char **strv_append_strdup(char **strv, const char *s);
char **strv_from_string(const char *string, const char *separator);
char *strv_join(char **strv, const char *separator);
bool strv_find(char **strv, const char *needle, size_t *index_out);
bool strv_find_substring(char **strv, const char *needle, size_t *index_out);
static inline void
strv_free(char **strv) {
char **s = strv;