54 lines
1.2 KiB
Factor
Executable File
54 lines
1.2 KiB
Factor
Executable File
! Copyright (C) 2004, 2008 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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USING: accessors kernel math strings sequences.private sequences
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strings growable strings.private ;
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IN: sbufs
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TUPLE: sbuf
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{ underlying string }
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{ length array-capacity } ;
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<PRIVATE
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: string>sbuf ( string length -- sbuf )
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sbuf boa ; inline
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PRIVATE>
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: <sbuf> ( n -- sbuf ) 0 <string> 0 string>sbuf ; inline
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M: sbuf set-nth-unsafe
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[ >fixnum ] [ >fixnum ] [ underlying>> ] tri* set-string-nth ;
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M: sbuf new-sequence
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drop [ 0 <string> ] [ >fixnum ] bi string>sbuf ;
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: >sbuf ( seq -- sbuf ) SBUF" " clone-like ; inline
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M: sbuf like
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drop dup sbuf? [
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dup string? [ dup length string>sbuf ] [ >sbuf ] if
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] unless ;
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M: sbuf new-resizable drop <sbuf> ;
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M: sbuf equal?
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over sbuf? [ sequence= ] [ 2drop f ] if ;
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M: string new-resizable drop <sbuf> ;
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M: string like
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drop dup string? [
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dup sbuf? [
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dup length over underlying>> length number= [
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underlying>> dup reset-string-hashcode
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] [
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>string
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] if
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] [
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>string
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] if
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] unless ;
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INSTANCE: sbuf growable
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