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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. |
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| jgaz | I'm trying to smartmatch something that literally looks like `(foo),d` and, given `$x ~~ / (foo),d /`, no amount of `\` escapes around the usual suspects are helping. | 14:26 | |
| nemokosch | First, if that's all you want, you could really just smartmatch a string, or to *.contains('blabla') for containment | 14:27 | |
| Second, if you want to include literal strings in a regex, quoting is the best option still, / 'blabla' / | 14:29 | ||
| Third, escaping should work nevertheless so what did you try? | |||
| jgaz | I tried `\(foo\)\,d`. It didn't work. I even tried / 'literal' / -- or so I recall. Trying the / 'literal' / approach now just works. I must have been more tired than I realized. | 14:31 | |
| Thanks. Sorry to bother. | |||
| wait... no it's not. | 14:32 | ||
| I need more coffee. Let me try a few things. | |||
| nemokosch | Frankly, both versions must work | 14:34 | |
| If something is off, the problem must be elsewhere | |||
| jgaz | yep, it is. I got it to match with a tiny test case. | 14:35 | |
| I must be doing something else wrong on the same line. | |||
| nemokosch | What is the line? 🧐 | ||
| "say the line" 😄 | 14:36 | ||
| jgaz | I found it I was ~ @array[index] on the same line, as part of the gist method to print object details, and the index didn't exist yet because I'm using test input. | 14:44 | |
| nemokosch | Oops | 14:47 | |
| jgaz | yep | ||
| wrong... wrong... wrong... right... beautify | |||
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| Tirifto_ | Is it not possible to declare a sub within EVAL? (I’m not trying to export the sub from EVAL into the surrounding scope; I am only trying to declare *and use it* within that same EVAL, but I get an error.) | 20:38 | |
| m: use MONKEY-SEE-NO-EVAL; EVAL “sub foo(Int $x) { $x × 3 }; say foo 3” | 20:39 | ||
| camelia | ===SORRY!=== Error while compiling <tmp> Variable '$x' is not declared. Perhaps you forgot a 'sub' if this was intended to be part of a signature? at <tmp>:1 ------> e MONKEY-SEE-NO-EVAL; EVAL “sub foo(Int ⏏$x) { $x × 3 }; sa… |
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| nemokosch | haha, that's not an EVAL problem | 20:41 | |
| that's a quoting problem | |||
| Tirifto_ | Ohhhh | ||
| Of course | |||
| nemokosch | double quotes interpolate $-variables, right? | ||
| so the quoting chokes before EVAL could get called | |||
| Tirifto_ | I immediately got what you meant; sorry for the commotion. xD | 20:42 | |
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| deoac | m: "a\n" ~~ / 'a' <!ww>\s* \n / | 21:20 | |
| camelia | ( no output ) | ||
| deoac | m: say "a\n" ~~ / 'a' <!ww>\s* \n / | ||
| camelia | ｢a ｣ |
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| deoac | m: say "a\n" ~~ / 'a' <.ws> \n / | ||
| camelia | Nil | ||
| deoac | Why do these matches give different results? The docs (docs.raku.org/language/regexes#Pre...r_classes) say they are the same. | 21:21 | |
| nemokosch | because you have an uneven amount of whitespaces in the two regexes | 22:22 | |
| the first one only demands one whitespace because \s* can match zero-width | 22:23 | ||
| oh, nevermind... | |||
| I don't get the table, though | |||
| if <ww> is zero-width and \s* can be zero-width, why does the table suggest <ws> is not zero-width? what does it mean? | 22:24 | ||