diff options
| author | Karl Williamson <khw@cpan.org> | 2018-12-06 17:18:25 -0700 |
|---|---|---|
| committer | Karl Williamson <khw@cpan.org> | 2018-12-26 12:50:38 -0700 |
| commit | c316b824875fdd5ce52338f301fb0255d843dfec (patch) | |
| tree | c713f631b889cca26e22cadb97523733b14b7c8b /regcomp.sym | |
| parent | b2296192536090829ba6d2cb367456f4e346dcc6 (diff) | |
| download | perl-c316b824875fdd5ce52338f301fb0255d843dfec.tar.gz | |
Add new regnode: ANYOFH, without a bitmap
This commit adds a regnode for the case where nothing in the bit map has
matches. This allows the bitmap to be omitted, saving 32 bytes of
otherwise wasted space per node. Many non-Latin Unicode properties have
this characteristic. Further, since this node applies only to code
points above 255, which are representable only in UTF-8, we can
trivially fail a match where the target string isn't in UTF-8. Time
savings also accrue from skipping the bitmap look-up. When swashes are
removed, even more time will be saved.
Diffstat (limited to 'regcomp.sym')
| -rw-r--r-- | regcomp.sym | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/regcomp.sym b/regcomp.sym index 25008905a8..d48d57e286 100644 --- a/regcomp.sym +++ b/regcomp.sym @@ -62,6 +62,7 @@ ANYOF ANYOF, sv charclass S ; Match character in (or not in) this ANYOFD ANYOF, sv charclass S ; Like ANYOF, but /d is in effect ANYOFL ANYOF, sv charclass S ; Like ANYOF, but /l is in effect ANYOFPOSIXL ANYOF, sv charclass_posixl S ; Like ANYOFL, but matches [[:posix:]] classes +ANYOFH ANYOF, sv 1 S ; Like ANYOF, but only has "High" matches, none in the bitmap ANYOFM ANYOFM byte 1 S ; Like ANYOF, but matches an invariant byte as determined by the mask and arg NANYOFM ANYOFM byte 1 S ; complement of ANYOFM |