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🦋 Welcome to the IRC channel of the core developers of the Raku Programming Language (raku.org #rakulang). This channel is logged for the purpose of history keeping about its development | evalbot usage: 'm: say 3;' or /msg camelia m: ... | Logs available at irclogs.raku.org/raku-dev/live.html | For MoarVM see #moarvm Set by lizmat on 8 June 2022. |
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| lizmat | nine: is parsing of regex / rule / token already 100% implemented in RakuAST that you know? | 12:22 | |
| working on deparsing RakuAST::RegexDeclaration, and I don't seem to be able to find a way to find the difference between those three | 12:23 | ||
| as they all codegen to RegexDeclaration | |||
| also: something like: | |||
| token { foo } | 12:24 | ||
| is codegenned as three Regex::Literal nodes, instead of one | |||
| which feels... wrong ? | |||
| oddly, It looks like the QAST generation is combining consecutive Regex::Literals again | 12:27 | ||
| Geth | DBIish/main: a8b4676c3e | (Rod Taylor)++ | .github/workflows/test.yml Swap testing 2020.12 for 2022.12 Keep up to date and 2020.12 has started regularly failing for unknown reasons. |
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| lizmat | also: on the subject of codegenning $s ~~ s/foo/bar/ | 13:06 | |
| why don't we create a dedicated HLL method for that, Rakudo::Internals.APPLY-SUBSTITUTIONS | 13:07 | ||
| and codegen it as: | |||
| $/ = Rakudo::Internals.APPLY-SUBSTITUTIONS($s, /foo/, "bar", flags) ? | 13:08 | ||
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| Geth | rakudo/main: da963241a8 | (Elizabeth Mattijsen)++ | src/Raku/ast/regex.rakumod Make RakuAST::Regex::Sequence join Regex::Literals When feeding ...Sequence.new() a bunch of consecutive Regex::Literals, they will be combined into a single RegexLiteral. This corrects deparsing in many cases, but not all yet. Brings number of passing tests to 621 |
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| rakudo/main: 8ee619270f | (Elizabeth Mattijsen)++ | 2 files Fix issue in deparsing RakuAST::Regex::Literal We should just use .raku semantics if there are non-word chars in the string. Adjusts tests accordingly. Introduce a new internal method for this functionality, as we're probably going to be needing that again. |
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| patrickb | What's an easy OP to put in raku code and break on in Moar? | 14:49 | |
| (say / MVM_string_say doesn't work. I didn't investigate.) | 14:50 | ||
| lizmat | so you want it to generate proper bytecode yet bomb on Moar? | 14:51 | |
| patrickb | I want gdb to break once it started executing by code (so skip over compilation) | 14:53 | |
| break as in "be able to put a breakpoint in gdb" | |||
| lizmat | nqp::die() ? | 14:54 | |
| patrickb | But then my program aborts. :-P | ||
| breaking on "write_bytes" works with "say" | 15:02 | ||
| Ah. say obviously codegens to write_fhb | 15:10 | ||
| I guess the "say" op is unused then... | 15:11 | ||
| Is there any writeup on how the regex machinery works? How do Cursors, NFAs, backtracking, ... play together? | 15:53 | ||
| lizmat | nothing in nqp/docs jumps out :-( | 15:56 | |
| patrickb | I'm off for today. Have a nice weekend everyone! o/ | 15:59 | |
| Geth | rakudo/main: 9998d1338c | (Elizabeth Mattijsen)++ | src/Raku/ast/regex.rakumod Join Regex::Literal with RakuAST::Regex::WithSigspace Fixes another deparse issue. |
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| nine | patrickb: I usually break on nqp::sin_n(1e0) | 18:37 | |
| patrickb: Works well....unless of course you're debugging very mathy code :) | |||
| lizmat: no idea about any of the regexy stuff | 18:38 | ||
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| Geth | nqp: usev6++ created pull request #794: [JVM] Add some constants DISP_* |
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