int pn_transform_apply(pn_transform_t *transform, const char *src,
pn_string_t *dst)
{
for (size_t i = 0; i < pn_list_size(transform->rules); i++)
{
pn_rule_t *rule = (pn_rule_t *) pn_list_get(transform->rules, i);
if (pni_match(&transform->matcher, pn_string_get(rule->pattern), src)) {
transform->matched = true;
if (!pn_string_get(rule->substitution)) {
return pn_string_set(dst, NULL);
}
while (true) {
size_t capacity = pn_string_capacity(dst);
size_t n = pni_substitute(&transform->matcher,
pn_string_get(rule->substitution),
pn_string_buffer(dst), capacity);
int err = pn_string_resize(dst, n);
if (err) return err;
if (n <= capacity) {
return 0;
}
}
}
}
transform->matched = false;
return pn_string_set(dst, src);
}
int pn_quote(pn_string_t *dst, const char *src, size_t size)
{
while (true) {
size_t str_size = pn_string_size(dst);
char *str = pn_string_buffer(dst) + str_size;
size_t capacity = pn_string_capacity(dst) - str_size;
ssize_t ssize = pn_quote_data(str, capacity, src, size);
if (ssize == PN_OVERFLOW) {
int err = pn_string_grow(dst, (str_size + capacity) ? 2*(str_size + capacity) : 16);
if (err) return err;
} else if (ssize >= 0) {
return pn_string_resize(dst, str_size + ssize);
} else {
return ssize;
}
}
}