I am trying to figure out how to replicate \w with rex, and coming up short.
There are scattered references to some shortcut symbols -- e.g. numbers is referenced in the README:
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maybe(capture(":", capture(numbers))), |
And alphas shows up in the CRAN help index under ?re_matches:
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#' re_matches(string, rex(capture(alphas, name = "first_word"), space, |
But I don't see anything else to help here. numbers isn't mentioned in the help at all.
It took (IMHO) way too much effort to find this:
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single_shortcuts <- shortcut( |
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## Character class shortcuts |
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alnum = character_class("[:alnum:]"), |
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alpha = character_class("[:alpha:]"), |
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letter = character_class("[:alpha:]"), |
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blank = character_class("[:blank:]"), |
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cntrl = character_class("[:cntrl:]"), |
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digit = character_class("[:digit:]"), |
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number = character_class("[:digit:]"), |
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graph = character_class("[:graph:]"), |
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lower = character_class("[:lower:]"), |
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print = character_class("[:print:]"), |
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punct = character_class("[:punct:]"), |
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space = character_class("[:space:]"), |
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upper = character_class("[:upper:]"), |
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xdigit = character_class("[:xdigit:]"), |
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newline = regex("\\R"), |
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single_quote = character_class("'"), |
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double_quote = character_class("\""), |
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quote = character_class("'\"") |
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) |
(this might be a dup of #79)