char **strv_copy(char **l) {
char **r, **k;
- if (!(r = new(char*, strv_length(l)+1)))
+ k = r = new(char*, strv_length(l)+1);
+ if (!k)
return NULL;
if (l)
- for (k = r; *l; k++, l++)
+ for (; *l; k++, l++)
if (!(*k = strdup(*l)))
goto fail;
unsigned n = 0, i = 0;
va_list aq;
-
if (x) {
n = 1;
if (!b)
return strv_copy(a);
- if (!(r = new(char*, strv_length(a)+strv_length(b)+1)))
+ r = new(char*, strv_length(a) + strv_length(b) + 1);
+ if (!r)
return NULL;
- for (k = r; *a; k++, a++)
- if (!(*k = strdup(*a)))
- goto fail;
- for (; *b; k++, b++)
- if (!(*k = strappend(*b, suffix)))
+ k = r;
+ if (a)
+ for (; *a; k++, a++) {
+ *k = strdup(*a);
+ if (!*k)
+ goto fail;
+ }
+
+ for (; *b; k++, b++) {
+ *k = strappend(*b, suffix);
+ if (!*k)
goto fail;
+ }
*k = NULL;
return r;
if (!s)
return strv_copy(l);
- if (!(r = new(char*, strv_length(l)+2)))
+ r = new(char*, strv_length(l)+2);
+ if (!r)
return NULL;
for (k = r; *l; k++, l++)
if (!l)
return NULL;
- /* Drops every occurrence of s in the string list */
+ assert(s);
+
+ /* Drops every occurrence of s in the string list, edits
+ * in-place. */
for (f = t = l; *f; f++) {
for (; *a; a++) {
char **j;
- size_t n = strcspn(*a, "=") + 1;
+ size_t n;
+
+ n = strcspn(*a, "=");
+
+ if ((*a)[n] == '=')
+ n++;
for (j = r; j < *k; j++)
if (strncmp(*j, *a, n) == 0)
}
char **strv_env_delete(char **x, unsigned n_lists, ...) {
- size_t n = 0, i = 0;
- char **l, **k, **r, **j;
+ size_t n, i = 0;
+ char **k, **r;
va_list ap;
/* Deletes every entry from x that is mentioned in the other
n = strv_length(x);
- if (!(r = new(char*, n+1)))
+ r = new(char*, n+1);
+ if (!r)
return NULL;
STRV_FOREACH(k, x) {
+ unsigned v;
+
va_start(ap, n_lists);
+ for (v = 0; v < n_lists; v++) {
+ char **l, **j;
- for (i = 0; i < n_lists; i++) {
l = va_arg(ap, char**);
STRV_FOREACH(j, l)
if (env_match(*k, *j))
- goto delete;
+ goto skip;
}
-
va_end(ap);
- if (!(r[i++] = strdup(*k))) {
+ r[i] = strdup(*k);
+ if (!r[i]) {
strv_free(r);
return NULL;
}
+ i++;
continue;
- delete:
+ skip:
va_end(ap);
}
return r;
}
+char **strv_env_unset(char **l, const char *p) {
+
+ char **f, **t;
+
+ if (!l)
+ return NULL;
+
+ assert(p);
+
+ /* Drops every occurrence of the env var setting p in the
+ * string list. edits in-place. */
+
+ for (f = t = l; *f; f++) {
+
+ if (env_match(*f, p)) {
+ free(*f);
+ continue;
+ }
+
+ *(t++) = *f;
+ }
+
+ *t = NULL;
+ return l;
+}
+
char **strv_env_set(char **x, const char *p) {
char **k, **r;
+ char* m[2] = { (char*) p, NULL };
+
+ /* Overrides the env var setting of p, returns a new copy */
if (!(r = new(char*, strv_length(x)+2)))
return NULL;
if (env_append(r, &k, x) < 0)
goto fail;
- if (!(*(k++) = strdup(p)))
+ if (env_append(r, &k, m) < 0)
goto fail;
*k = NULL;
return v;
}
+
+bool strv_overlap(char **a, char **b) {
+ char **i, **j;
+
+ STRV_FOREACH(i, a) {
+ STRV_FOREACH(j, b) {
+ if (streq(*i, *j))
+ return true;
+ }
+ }
+
+ return false;
+}