diff options
Diffstat (limited to 'README.EXT')
| -rw-r--r-- | README.EXT | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/README.EXT b/README.EXT index 145d922b10..62e0450789 100644 --- a/README.EXT +++ b/README.EXT @@ -1305,6 +1305,26 @@ rb_scan_args(int argc, VALUE *argv, const char *fmt, ...) :: The number of given arguments, excluding an option hash or iterator block, is returned. +int rb_get_kwargs(VALUE keyword_hash, const ID *table, int required, int optional, VALUE *values) + + Retrieves argument VALUEs bound to keywords, which directed by +table+ + into +values+. First +required+ number of IDs referred by +table+ are + mandatory, and succeeding +optional+ (- +optional+ - 1 if + +optional+ is negative) number of IDs are optional. If a + mandatory key is not contained in +keyword_hash+, raises "missing + keyword" +ArgumentError+. If an optional key is not present in + +keyword_hash+, the corresponding element in +values+ is not changed. + If +optional+ is negative, rest of +keyword_hash+ are stored in the + next to optional +values+ as a new Hash, otherwise raises "unknown + keyword" +ArgumentError+. + +VALUE rb_extract_keywords(VALUE *original_hash) + + Extrancts pairs whose key is a symbol into a new hash from a hash + object referred by +original_hash+. If the original hash contains + non-symbol keys, then they are copied to another hash and the new hash + is stored through +original_hash+, else 0 is stored. + == Invoking Ruby method VALUE rb_funcall(VALUE recv, ID mid, int narg, ...) :: |