55 lines
1.5 KiB
Factor
55 lines
1.5 KiB
Factor
! Copyright (C) 2009 Daniel Ehrenberg
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! See http://factorcode.org/license.txt for BSD license.
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USING: sequences splitting kernel math.parser io.files io.encodings.utf8
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biassocs ascii namespaces arrays make assocs interval-maps sets ;
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IN: simple-flat-file
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: drop-comments ( seq -- newseq )
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[ "#@" split first ] map harvest ;
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: split-column ( line -- columns )
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" \t" split harvest 2 short head 2 f pad-tail ;
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: parse-hex ( s -- n )
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dup [
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"0x" ?head [ "U+" ?head [ "Missing 0x or U+" throw ] unless ] unless
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hex>
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] when ;
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: parse-line ( line -- code-unicode )
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split-column [ parse-hex ] map ;
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: process-codetable-lines ( lines -- assoc )
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drop-comments [ parse-line ] map ;
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: flat-file>biassoc ( filename -- biassoc )
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utf8 file-lines process-codetable-lines >biassoc ;
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: split-; ( line -- array )
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";" split [ [ blank? ] trim ] map ;
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: data ( filename -- data )
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utf8 file-lines drop-comments [ split-; ] map ;
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SYMBOL: interned
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: range, ( value key -- )
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swap interned get
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[ = ] 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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swap CHAR: . over member? [
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".." split1 [ hex> ] bi@ 2array
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] [ hex> ] if range,
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] assoc-each
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] { } make <interval-map> ;
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: process-interval-file ( ranges -- table )
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dup values members interned
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[ expand-ranges ] with-variable ;
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: load-interval-file ( filename -- table )
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data process-interval-file ;
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