diff options
Diffstat (limited to '05/idents.b')
| -rw-r--r-- | 05/idents.b | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/05/idents.b b/05/idents.b index 11155d7..9663bf0 100644 --- a/05/idents.b +++ b/05/idents.b @@ -85,6 +85,34 @@ function ident_list_lookup list -= 8 ; backtrack to value return *8list ; UNALIGNED +; return a pointer to the value associated with ident, or 0 if none is +function ident_list_lookup_pointer + argument list + argument ident + local b + :ilist_lookup_pointer_loop + if *1list == 0 goto return_0 + b = str_equals(list, ident) + list = memchr(list, 0) + list += 9 ; skip null byte and value + if b == 0 goto ilist_lookup_pointer_loop + list -= 8 ; backtrack to value + return list + +; if list contains ident, change its value to `value`. otherwise, add ident with the given value. +function ident_list_set + argument list + argument ident + argument value + local p + p = ident_list_lookup_pointer(list, ident) + if p == 0 goto ident_list_set_add + *8p = value + return + :ident_list_set_add + ident_list_add(list, ident, value) + return + ; if identifier in list, sets *pvalue to its value (if pvalue is not null) and returns 1 ; otherwise, returns 0 function ident_list_lookup_check |