diff options
Diffstat (limited to 'txr.1')
| -rw-r--r-- | txr.1 | 30 |
1 files changed, 29 insertions, 1 deletions
@@ -40109,7 +40109,7 @@ The specified .meta pattern is applied against every element of the sequence. The match is successful if .meta pattern -finds a matching element. +matches at least one element. Variables are extracted from the first matching which is found. @@ -40125,6 +40125,34 @@ Variables are extracted from the first matching which is found. -> (2 b) .brev +.coNP Pattern operator @ coll +.synb +.mets @(coll << pattern ) +.syne +.desc +The +.code coll +pattern operator requires the corresponding object to be a sequence. +The specified +.meta pattern +is applied against every element of the sequence. The match is successful if +.meta pattern +matches at least one element. + +Variables are extracted from all matching elements, and collected into +parallel lists, just like with the +.code @(all) +operator. + +.TP* Example: + +.verb + (when-match @(coll (x @a @b)) + '((y 1 a) (x 2 b) (z 3 c) (x 4 d)) + (list a b)) + -> ((2 4) (b d)) +.brev + .coNP Pattern operators @ and and @ or .synb .mets @(and << pattern *) |