diff options
Diffstat (limited to 'lib.c')
| -rw-r--r-- | lib.c | 46 |
1 files changed, 46 insertions, 0 deletions
@@ -1019,6 +1019,51 @@ uc_splice(uc_vm_t *vm, size_t nargs) } static uc_value_t * +uc_slice(uc_vm_t *vm, size_t nargs) +{ + uc_value_t *arr = uc_fn_arg(0); + uc_value_t *sv = uc_fn_arg(1); + uc_value_t *ev = uc_fn_arg(2); + uc_value_t *res = NULL; + int64_t off, end; + size_t len; + + if (ucv_type(arr) != UC_ARRAY) + return NULL; + + len = ucv_array_length(arr); + off = sv ? ucv_to_integer(sv) : 0; + end = ev ? ucv_to_integer(ev) : (int64_t)len; + + if (off < 0) { + off = len + off; + + if (off < 0) + off = 0; + } + else if ((uint64_t)off > len) { + off = len; + } + + if (end < 0) { + end = len + end; + + if (end < 0) + end = 0; + } + else if ((uint64_t)end > len) { + end = len; + } + + res = ucv_array_new(vm); + + while (off < end) + ucv_array_push(res, ucv_get(ucv_array_get(arr, off++))); + + return res; +} + +static uc_value_t * uc_split(uc_vm_t *vm, size_t nargs) { uc_value_t *str = uc_fn_arg(0); @@ -3845,6 +3890,7 @@ const uc_function_list_t uc_stdlib_functions[] = { { "shift", uc_shift }, { "sort", uc_sort }, { "splice", uc_splice }, + { "slice", uc_slice }, { "split", uc_split }, { "substr", uc_substr }, { "time", uc_time }, |