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| author | Kaz Kylheku <kaz@kylheku.com> | 2011-11-15 14:29:34 -0800 |
|---|---|---|
| committer | Kaz Kylheku <kaz@kylheku.com> | 2011-11-15 14:29:34 -0800 |
| commit | b6551fda77163f74983688409aaf0c13c8186bec (patch) | |
| tree | 690b7abd40236f6ef5e168e84a0a4c6eeeb2d2c2 /ChangeLog | |
| parent | 9ae8fe9b48cd8e56816225e467f8882c8313d876 (diff) | |
| download | txr-b6551fda77163f74983688409aaf0c13c8186bec.tar.gz txr-b6551fda77163f74983688409aaf0c13c8186bec.tar.bz2 txr-b6551fda77163f74983688409aaf0c13c8186bec.zip | |
Changing read syntax for character literals, because we are going to
need the single quote in the Lisp way for suppressing evaluation,
eventually.
I'm going with a Scheme-compatible syntax for character literals.
It has a richer repertoire of standard character names than Common
Lisp, and has a x convention for coding characters in hex.
* lib.c (obj_print): Print characters in a Scheme-like way.
* parser.h (end_of_char): New function declared.
* parser.l (grammar): Implement rules for #\ syntax, with
involving new HASH_BACKSLASH token.
(end_of_regex): Enhancement: added check that end_of_regex is
called in correct state, like the one in end_of_char.
(end_of_char): New function.
* parser.y (repeat_rep_helper, o_elems_transform, define_transform,
lit_char_helper): Functions changed to static.
(rl): Function moved down, past the grammar section.
(HASH_BACKSLASH): New terminal symbol.
(chrlit): Grammar redesigned.
(char_from_name): New function.
* txr.1: Character syntax documented.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 29 |
1 files changed, 29 insertions, 0 deletions
@@ -1,3 +1,32 @@ +2011-11-15 Kaz Kylheku <kaz@kylheku.com> + + Changing read syntax for character literals, because we are going to + need the single quote in the Lisp way for suppressing evaluation, + eventually. + + I'm going with a Scheme-compatible syntax for character literals. + It has a richer repertoire of standard character names than Common + Lisp, and has a x convention for coding characters in hex. + + * lib.c (obj_print): Print characters in a Scheme-like way. + + * parser.h (end_of_char): New function declared. + + * parser.l (grammar): Implement rules for #\ syntax, with + involving new HASH_BACKSLASH token. + (end_of_regex): Enhancement: added check that end_of_regex is + called in correct state, like the one in end_of_char. + (end_of_char): New function. + + * parser.y (repeat_rep_helper, o_elems_transform, define_transform, + lit_char_helper): Functions changed to static. + (rl): Function moved down, past the grammar section. + (HASH_BACKSLASH): New terminal symbol. + (chrlit): Grammar redesigned. + (char_from_name): New function. + + * txr.1: Character syntax documented. + 2011-11-14 Kaz Kylheku <kaz@kylheku.com> Bugfix: horizontal directives were being treated as vertical, |