In regexes.rakudoc, add explanations for <same> and <at(n)>, and fix/clarify some more #4657
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Unicode set unions/differences are formed with `+` and `-`, never with a backslash before (verification: in roast, «- :» is used for set substraction [ripgrep command: rg '\- :'], whereas «\- :» never occurs [ripgrep command: rg '\\- :'])
schultzdavid
changed the title
coke
requested changes
Oct 13, 2025
doc/Language/regexes.rakudoc
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| \+ | set union | ||
| \- | set difference | ||
| C<+> | set union | ||
| C<-> | set difference |
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You are using rakudoc in this column...
doc/Language/regexes.rakudoc
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| <?ww> | Within word | "t⏏w⏏o w⏏o⏏r⏏d⏏s~!" | ||
| <!ww> | Not within word | "⏏two⏏ ⏏words⏏~⏏!⏏" | ||
| <at(n)> | After nth character | "abc⏏de" for C<at(3)> | ||
| <!at(n)> | Not after nth char | "⏏a⏏b⏏cd⏏e" for C<!at(3)> |
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but using simple <>’s in this column.
Ah, true. There really seems to be no such table using rakudoc inside: both For the first two lines, we can go back to For the lines from the second quote, I'll also remove the rakudoc syntax |
coke
approved these changes
Oct 13, 2025
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Both are only mentioned without any details so far. Their behavior is documented at the bottom of roast S05-mass/stdrules.t.
As for
at(n), I'm not entirely sure if presentation that I've chosen is the best, sinceatalso installs a named capture and is nowhere explicitly called an anchor (although it works at least very similar to one).