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| author | Kaz Kylheku <kaz@kylheku.com> | 2011-10-06 22:20:16 -0700 |
|---|---|---|
| committer | Kaz Kylheku <kaz@kylheku.com> | 2011-10-06 22:20:16 -0700 |
| commit | 5ab2b46a0f5d6c73b6e81a0efc47c29d29928966 (patch) | |
| tree | 3d1c0c229308c7c6da8ee84938124275e3beb814 /ChangeLog | |
| parent | 9776ad45285a46cacd5fc7288489d374f6480f37 (diff) | |
| download | txr-5ab2b46a0f5d6c73b6e81a0efc47c29d29928966.tar.gz txr-5ab2b46a0f5d6c73b6e81a0efc47c29d29928966.tar.bz2 txr-5ab2b46a0f5d6c73b6e81a0efc47c29d29928966.zip | |
Extending syntax to allow for @VAR and @(...) forms inside
nested lists. This is in anticipation of future features.
* lib.c (expr_s): New symbol variable.
(obj_init): expr_s initialized.
* lib.h (expr_s): Declared.
* match.c (dest_bind): Now takes linenum. Tests for the meta-syntax
denoted by the system symbols var_s and expr_s, and throws an
error.
(eval_form): Similar error checks added. Also, hack: do not add
file and line number to an exception which begins with a '('
character; just re-throw it. This suppresses duplicate line
number addition when this throw occurs across some nestings.
(match_files): Updated calls to dest_bind.
* parser.l (yybadtoken): Handle new token kind, METAVAR and METAPAR.
(grammar): Refactoring among patterns: TOK broken into
SYM and NUM, NTOK introduced, unused NUM_END removed.
Rule for @( producing METAPAR in nested state.
* parser.y (METAVAR, METAPAR): New tokens.
(meta_expr): New nonterminal.
(expr): meta_expr and META_VAR productions handled.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 28 |
1 files changed, 28 insertions, 0 deletions
@@ -1,5 +1,33 @@ 2011-10-06 Kaz Kylheku <kaz@kylheku.com> + Extending syntax to allow for @VAR and @(...) forms inside + nested lists. This is in anticipation of future features. + + * lib.c (expr_s): New symbol variable. + (obj_init): expr_s initialized. + + * lib.h (expr_s): Declared. + + * match.c (dest_bind): Now takes linenum. Tests for the meta-syntax + denoted by the system symbols var_s and expr_s, and throws an + error. + (eval_form): Similar error checks added. Also, hack: do not add + file and line number to an exception which begins with a '(' + character; just re-throw it. This suppresses duplicate line + number addition when this throw occurs across some nestings. + (match_files): Updated calls to dest_bind. + + * parser.l (yybadtoken): Handle new token kind, METAVAR and METAPAR. + (grammar): Refactoring among patterns: TOK broken into + SYM and NUM, NTOK introduced, unused NUM_END removed. + Rule for @( producing METAPAR in nested state. + + * parser.y (METAVAR, METAPAR): New tokens. + (meta_expr): New nonterminal. + (expr): meta_expr and META_VAR productions handled. + +2011-10-06 Kaz Kylheku <kaz@kylheku.com> + Renaming the currying combinators according to new scheme. * lib.c (bind2): Function renamed to curry_12_2. |