|
This channel is intended for people just starting with the Raku Programming Language (raku.org). Logs are available at irclogs.raku.org/raku-beginner/live.html Set by lizmat on 8 June 2022. |
|||
|
00:13
lizmat_ joined
00:15
lizmat left
00:18
lizmat_ left,
lizmat joined
03:18
nicole left,
nicole joined
07:40
lucs_ joined
07:44
lucs left
08:14
CIAvash joined
09:07
CIAvash left
|
|||
| librasteve | o/ | 11:33 | |
| (how) can an enum be used in a regex or grammar token to match it's .keys? | 11:34 | ||
| nemokosch | Do you know <?{}> | 14:15 | |
| librasteve | oh yes - thanks! | 16:53 | |
| scullucs | Er, I don't. How does that work? | 17:24 | |
| librasteve | i have used it like this before: my regex number { \S+ #grab chars <?{ +"$/" ~~ Real }> #assert coerces via '+' to Real } | 17:53 | |
| it's a lookahead assertion (ie a wrapper for a function) where the regex matches only if the the fn is True | 17:55 | ||
| so I guess with an enum its like this... | 17:57 | ||
| enum Colour <red green blue>; my regex colour { \S+ #grab chars <?{ "$/" ~~ Colour }> #assert checks match string is Colour } | 17:58 | ||
|
18:21
habere-et-disper joined
|
|||
| Nahita | m: my enum E<yes no>; say so "this has yes in it" ~~ / @(E.keys) / | 18:35 | |
| Raku eval | True | ||
| librasteve | m: my enum E<yes no>; say so "this has yes in it" ~~ / @<E.keys> / | 18:36 | |
| Raku eval | False | ||
| librasteve | m: my enum E<yes no>; say so "this has yes in it" ~~ / <E.keys> / | 18:37 | |
| Raku eval | Exit code: 1 ===SORRY!=== Error while compiling /home/glot/main.raku Unable to parse expression in metachar:sym<assert>; couldn't find final '>' (corresponding starter was at line 1) at /home/glot/main.raku:1 ------> no>; say so "this has yes in it" ~~ / <E⏏.keys> / expecting any of: term | ||
| librasteve | @Nahita - yes that's even better ...tx! | 18:38 | |
| (strangely I read the docs about interpolation in a regex like '$()' yesterday, but already forgot the '@()' | 18:39 | ||
| ) | |||
| scullucs | @librasteve, @Nahita thanks for the examples. | 19:00 | |
|
19:07
deadmarshal_ left
19:12
deadmarshal_ joined
20:11
habere-et-disper left
21:17
habere-et-disper joined
|
|||
| habere-et-disper | I have a working grammar but the files to parse are embedded in handcrafted HTML. The grammar starts with an unambiguous marker. How do I ignore the cruft on either side of what I want to parse? | 21:42 | |
| MasterDuke | `.*<unambiguous marker>.*`? or maybe try `.subparse`, instead of `.parse` | 23:34 | |
| habere-et-disper | Thanks, I'll give that a go. Rather than `.*` I thought matching anything but the marker would be clearer but I'm not sure how to invert the match of a fixed string. | 23:59 | |