1 ! Copyright (C) 2003, 2008 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors io kernel math namespaces sequences sbufs
4 strings generic splitting continuations destructors
5 io.streams.plain io.encodings math.order growable ;
10 : harden-as ( seq growble-exemplar -- newseq )
13 : growable-read-until ( growable n -- str )
14 >fixnum dupd tail-slice swap harden-as dup reverse-here ;
16 SINGLETON: null-encoding
18 M: null-encoding decode-char drop stream-read1 ;
20 : format-column ( seq ? -- seq )
22 [ 0 [ length max ] reduce ] keep
23 swap [ CHAR: \s pad-right ] curry map
26 : map-last ( seq quot -- seq )
27 [ dup length <reversed> ] dip [ 0 = ] prepose 2map ; inline
31 : format-table ( table -- seq )
32 flip [ format-column ] map-last
33 flip [ " " join ] map ;
35 M: growable dispose drop ;
37 M: growable stream-write1 push ;
38 M: growable stream-write push-all ;
39 M: growable stream-flush drop ;
41 : <string-writer> ( -- stream )
44 : with-string-writer ( quot -- str )
45 <string-writer> swap [ output-stream get ] compose with-output-stream*
48 M: growable stream-read1 [ f ] [ pop ] if-empty ;
50 : find-last-sep ( seq seps -- n )
51 swap [ memq? ] curry find-last drop ;
53 M: growable stream-read-until
54 [ find-last-sep ] keep over [
55 [ swap 1+ growable-read-until ] 2keep [ nth ] 2keep
58 [ swap drop 0 growable-read-until f like f ] keep
62 M: growable stream-read
66 [ length swap - 0 max ] keep
67 [ swap growable-read-until ] 2keep
71 M: growable stream-read-partial
74 : <string-reader> ( str -- stream )
75 >sbuf dup reverse-here null-encoding <decoder> ;
77 : with-string-reader ( str quot -- )
78 [ <string-reader> ] dip with-input-stream ; inline
80 INSTANCE: growable plain-writer
82 M: plain-writer stream-write-table
83 [ drop format-table [ print ] each ] with-output-stream* ;
85 M: plain-writer make-cell-stream 2drop <string-writer> ;