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Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 59 |
1 files changed, 59 insertions, 0 deletions
@@ -1,3 +1,62 @@ +2009-10-20 Kaz Kylheku <kkylheku@gmail.com> + + Start of implementation for freestyle matching. + + Lazy strings implemented, incompletely. + + Changed string function to implicitly strdup; non-strdup + version changed to string_own. Fixed wrong uses of strdup + rather than chk_strdup. + + Functions added to regex module to provide regex matching + as a state machine to which characters are fed. + + * lib.h (type_t): New enum member LSTR, for lazy strings. + (lstr_t, freestyle, type_check3, string_own): Declared. + (string): Parameter changed to const char *. + (lazy_stringp, split_str, lazy_str, lazy_str_force_upto, + lazy_str_force, lazy_str_get_trailing_list, length_str_gt, + length_str_ge, length_str_lt, length_str_le): Declared. + + * lib.c (lstr_t, freestyle): New symbol globals. + (code2type, obj_print, obj_pprint, equal): Extended to handle LSTR. + (type_check3): New function. + (string_own): New function; does what string used to do. + (string): Duplicates the string with strdup, so callers don't have to. + (mkstring, copy_str, trim_str): Use string_own. + (stringp): A lazy string is a kind of string. + (lazy_stringp): New function. + (length_str, c_str, search_str, sub_str, chr_str, + chr_str_set): Handle lazy strings. + (split_str): New function. + (lazy_str, lazy_str_force_upto, lazy_str_force, + lazy_str_get_trailing_list, length_str_gt, length_str_ge, + length_str_lt, length_str_le): New functions. + (obj_init): New symbols interned. Eliminated strdup calls. + + * gc.c (finalize, mark_obj): Changed to handle LSTR type. + Eliminated default case from switch so we get a gcc + diagnostic if a case is not handled. + + * match.c (match_files): Eliminated strdup calls. + Added freeform directive. + + * parser.y (grammar): Changed string calls to string_own. + + * stream.c (stdio_get_line, get_string_from_stream): + Changed string calls to string_own. + (dir_get_line): Eliminated chk_strdup call. + + * txr.c (remove_hash_bang_line, main): Eliminated strdup calls. + + * regex.h (nfam_result): New union. + (nfa_machine, nfa_machine_t): New struct and typedef. + (nfa_machine_init, nfa_machine_cleanup, nfa_machine_feed, + nfa_machine_match_span): New functions declared. + + * regex.c (nfa_machine_init, nfa_machine_cleanup, nfa_machine_feed, + nfa_machine_match_span): New functions defined. + 2009-10-18 Kaz Kylheku <kkylheku@gmail.com> Trivial change allows regexps to be bound to variables, |