51 lines
1.3 KiB
Factor
51 lines
1.3 KiB
Factor
! Copyright (C) 2008 Daniel Ehrenberg.
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! See http://factorcode.org/license.txt for BSD license.
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USING: accessors values kernel sequences assocs io.files
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io.encodings ascii math.ranges io splitting math.parser
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namespaces make byte-arrays locals math sets io.encodings.ascii
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words compiler.units arrays interval-maps unicode.data ;
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IN: unicode.script
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<PRIVATE
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VALUE: script-table
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SYMBOL: interned
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: parse-script ( stream -- assoc )
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! assoc is code point/range => name
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lines filter-comments [ split-; ] map ;
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: range, ( value key -- )
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swap interned get
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[ name>> = ] with find nip 2array , ;
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: expand-ranges ( assoc -- interval-map )
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[
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[
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CHAR: . pick member? [
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swap ".." split1 [ hex> ] bi@ 2array
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] [ swap hex> ] if range,
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] assoc-each
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] { } make <interval-map> ;
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: >symbols ( strings -- symbols )
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[
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[ "unicode.script" create dup define-symbol ] map
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] with-compilation-unit ;
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: process-script ( ranges -- )
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dup values prune >symbols interned [
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expand-ranges to: script-table
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] with-variable ;
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: load-script ( -- )
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"resource:basis/unicode/script/Scripts.txt"
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ascii <file-reader> parse-script process-script ;
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load-script
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PRIVATE>
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SYMBOL: Unknown
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: script-of ( char -- script )
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script-table interval-at [ Unknown ] unless* ;
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