diff options
Diffstat (limited to 'py/objstr.c')
| -rw-r--r-- | py/objstr.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/py/objstr.c b/py/objstr.c index 09d4958fbb..337b42e70e 100644 --- a/py/objstr.c +++ b/py/objstr.c @@ -278,6 +278,16 @@ static mp_obj_t str_find(uint n_args, const mp_obj_t *args) { } } +// TODO: (Much) more variety in args +static mp_obj_t str_startswith(mp_obj_t self_in, mp_obj_t arg) { + GET_STR_DATA_LEN(self_in, str, str_len); + GET_STR_DATA_LEN(arg, prefix, prefix_len); + if (prefix_len > str_len) { + return mp_const_false; + } + return MP_BOOL(memcmp(str, prefix, prefix_len) == 0); +} + static bool chr_in_str(const byte* const str, const size_t str_len, int c) { for (size_t i = 0; i < str_len; i++) { if (str[i] == c) { @@ -364,6 +374,7 @@ mp_obj_t str_format(uint n_args, const mp_obj_t *args) { static MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(str_find_obj, 2, 4, str_find); static MP_DEFINE_CONST_FUN_OBJ_2(str_join_obj, str_join); static MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(str_split_obj, 1, 3, str_split); +static MP_DEFINE_CONST_FUN_OBJ_2(str_startswith_obj, str_startswith); static MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(str_strip_obj, 1, 2, str_strip); static MP_DEFINE_CONST_FUN_OBJ_VAR(str_format_obj, 1, str_format); @@ -371,6 +382,7 @@ static const mp_method_t str_type_methods[] = { { "find", &str_find_obj }, { "join", &str_join_obj }, { "split", &str_split_obj }, + { "startswith", &str_startswith_obj }, { "strip", &str_strip_obj }, { "format", &str_format_obj }, { NULL, NULL }, // end-of-list sentinel |