--- title: "mg_url_decode()" decl_name: "mg_url_decode" symbol_kind: "func" signature: | int mg_url_decode(const char *src, int src_len, char *dst, int dst_len, int is_form_url_encoded); --- Decodes a URL-encoded string. Source string is specified by (`src`, `src_len`), and destination is (`dst`, `dst_len`). If `is_form_url_encoded` is non-zero, then `+` character is decoded as a blank space character. This function guarantees to NUL-terminate the destination. If destination is too small, then the source string is partially decoded and `-1` is returned. *Otherwise, a length of the decoded string is returned, not counting final NUL.