43 lines
1.1 KiB
Factor
43 lines
1.1 KiB
Factor
! Copyright (C) 2007, 2009 Slava Pestov, Daniel Ehrenberg.
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! See http://factorcode.org/license.txt for BSD license.
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USING: sequences kernel regexp.combinators strings unicode.case
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peg.ebnf regexp arrays ;
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IN: globs
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EBNF: <glob>
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Character = "\\" .:c => [[ c 1string <literal> ]]
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| !(","|"}") . => [[ 1string <literal> ]]
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RangeCharacter = !("]") .
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Range = RangeCharacter:a "-" RangeCharacter:b => [[ a b <char-range> ]]
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| RangeCharacter => [[ 1string <literal> ]]
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StartRange = .:a "-" RangeCharacter:b => [[ a b <char-range> ]]
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| . => [[ 1string <literal> ]]
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Ranges = StartRange:s Range*:r => [[ r s prefix ]]
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CharClass = "^"?:n Ranges:e => [[ e <or> n [ <not> ] when ]]
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AlternationBody = Concatenation:c "," AlternationBody:a => [[ a c prefix ]]
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| Concatenation => [[ 1array ]]
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Element = "*" => [[ R/ .*/ ]]
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| "?" => [[ R/ ./ ]]
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| "[" CharClass:c "]" => [[ c ]]
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| "{" AlternationBody:b "}" => [[ b <or> ]]
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| Character
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Concatenation = Element* => [[ <sequence> ]]
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End = !(.)
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Main = Concatenation End
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;EBNF
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: glob-matches? ( input glob -- ? )
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[ >case-fold ] bi@ <glob> matches? ;
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