Newest at the top
| 2024-12-28 07:37:10 +0100 | <c_wraith> | yeah, flip that to *> |
| 2024-12-28 07:36:57 +0100 | <fp> | number <- optional string "#d" <* someTill decimalDigit (lookAhead delimiter) |
| 2024-12-28 07:36:41 +0100 | <haskellbridge> | <maerwald> show the real code |
| 2024-12-28 07:36:36 +0100 | <c_wraith> | What are you doing to make it not? |
| 2024-12-28 07:36:27 +0100 | <c_wraith> | optional returns a parser. |
| 2024-12-28 07:36:26 +0100 | <haskellbridge> | <maerwald> yes |
| 2024-12-28 07:36:12 +0100 | <fp> | looking at the type signature of (*>), I think both sides need to be of the same monad? |
| 2024-12-28 07:35:46 +0100 | <fp> | That still gives me a type error on the left side that it's Maybe and not Parser |
| 2024-12-28 07:35:17 +0100 | <haskellbridge> | <maerwald> The effect of a parser is consuming input or failing... a maybe parser never fails (but may backtrack, depending on how you defined it). You only care about the effect here, but not the value (Maybe). That's what (*>) does. |
| 2024-12-28 07:32:07 +0100 | <c_wraith> | err. *> |
| 2024-12-28 07:31:53 +0100 | <c_wraith> | optional (chunk "#d") <* some (satisfy isDigit) |
| 2024-12-28 07:30:35 +0100 | <fp> | or is that what you're saying? |
| 2024-12-28 07:29:53 +0100 | <fp> | So I don't want for decimalParser to be Maybe, like the grammar I want is like <decimal> ::= "#d"? [0-9]+, so I just want something like the ? |
| 2024-12-28 07:28:02 +0100 | <haskellbridge> | <maerwald> the effect of a parser is that it consumes input (or not) |
| 2024-12-28 07:27:22 +0100 | <c_wraith> | In particular, both (*>) and (<*) do just "throw away" things in exactly the way you'd want. (You use *> more standalone, <* more in applicative chains) |
| 2024-12-28 07:27:14 +0100 | <haskellbridge> | <maerwald> you run both effects, but discard the left value |
| 2024-12-28 07:27:04 +0100 | merijn | (~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 265 seconds) |
| 2024-12-28 07:27:01 +0100 | <haskellbridge> | <maerwald> (*>) :: f a -> f b -> f b |
| 2024-12-28 07:26:24 +0100 | <haskellbridge> | <maerwald> :t (*>) |
| 2024-12-28 07:25:30 +0100 | <haskellbridge> | <maerwald> maybeParser *> decimalParser |
| 2024-12-28 07:23:48 +0100 | <fp> | How, with megaparsec, does one represent an optional parser? The problem I'm solving is that I have a decimal literal, which can be like =1234= or =#d1234=, so the =#d= is optional and I don't care about the value. =optional= exists, but it creates a =Maybe= which I can't just throw away its value |
| 2024-12-28 07:22:43 +0100 | peterbecich | (~Thunderbi@syn-047-229-123-186.res.spectrum.com) peterbecich |
| 2024-12-28 07:22:08 +0100 | merijn | (~merijn@128-137-045-062.dynamic.caiway.nl) merijn |
| 2024-12-28 07:18:22 +0100 | notzmv | (~umar@user/notzmv) (Ping timeout: 265 seconds) |
| 2024-12-28 07:18:19 +0100 | gorignak | (~gorignak@user/gorignak) gorignak |
| 2024-12-28 07:08:42 +0100 | merijn | (~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 265 seconds) |
| 2024-12-28 07:03:57 +0100 | merijn | (~merijn@128-137-045-062.dynamic.caiway.nl) merijn |
| 2024-12-28 06:58:04 +0100 | tnt2 | tnt1 |
| 2024-12-28 06:58:04 +0100 | tnt1 | (~Thunderbi@user/tnt1) (Ping timeout: 265 seconds) |
| 2024-12-28 06:56:26 +0100 | tnt2 | (~Thunderbi@user/tnt1) tnt1 |
| 2024-12-28 06:53:26 +0100 | tnt1 | (~Thunderbi@user/tnt1) tnt1 |
| 2024-12-28 06:53:06 +0100 | tnt1 | (~Thunderbi@user/tnt1) (Ping timeout: 244 seconds) |
| 2024-12-28 06:50:51 +0100 | merijn | (~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 246 seconds) |
| 2024-12-28 06:45:57 +0100 | ycp | (~znc@user/dragestil) dragestil |
| 2024-12-28 06:45:29 +0100 | ycp | (~znc@user/dragestil) (Quit: ZNC 1.8.2+deb3.1+deb12u1 - https://znc.in) |
| 2024-12-28 06:44:05 +0100 | merijn | (~merijn@128-137-045-062.dynamic.caiway.nl) merijn |
| 2024-12-28 06:39:01 +0100 | chexum | (~quassel@gateway/tor-sasl/chexum) chexum |
| 2024-12-28 06:38:30 +0100 | chexum | (~quassel@gateway/tor-sasl/chexum) (Remote host closed the connection) |
| 2024-12-28 06:37:00 +0100 | notzmv | (~umar@user/notzmv) notzmv |
| 2024-12-28 06:31:40 +0100 | merijn | (~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 252 seconds) |
| 2024-12-28 06:30:57 +0100 | gorignak | (~gorignak@user/gorignak) (Quit: quit) |
| 2024-12-28 06:27:09 +0100 | merijn | (~merijn@128-137-045-062.dynamic.caiway.nl) merijn |
| 2024-12-28 06:20:34 +0100 | gorignak | (~gorignak@user/gorignak) gorignak |
| 2024-12-28 06:19:24 +0100 | remedan | (~remedan@ip-62-245-108-153.bb.vodafone.cz) remedan |
| 2024-12-28 06:17:07 +0100 | Feuermagier | (~Feuermagi@user/feuermagier) (Quit: Leaving) |
| 2024-12-28 06:16:52 +0100 | remedan_ | (~remedan@ip-62-245-108-153.bb.vodafone.cz) (Quit: Bye!) |
| 2024-12-28 06:15:14 +0100 | merijn | (~merijn@128-137-045-062.dynamic.caiway.nl) (Ping timeout: 252 seconds) |
| 2024-12-28 06:11:12 +0100 | bitdex | (~bitdex@gateway/tor-sasl/bitdex) bitdex |
| 2024-12-28 06:10:40 +0100 | merijn | (~merijn@128-137-045-062.dynamic.caiway.nl) merijn |
| 2024-12-28 06:08:31 +0100 | <homo> | yeah, so much different from the rest :) |