112 lines
2.5 KiB
Factor
Executable File
112 lines
2.5 KiB
Factor
Executable File
! Copyright (C) 2008 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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USING: arrays sequences kernel accessors math alien.accessors
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alien.c-types byte-arrays words io io.encodings
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io.streams.byte-array io.streams.memory io.encodings.utf8
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io.encodings.utf16 system alien strings cpu.architecture ;
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IN: alien.strings
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GENERIC# alien>string 1 ( c-ptr encoding -- string/f )
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M: c-ptr alien>string
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>r <memory-stream> r> <decoder>
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"\0" swap stream-read-until drop ;
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M: f alien>string
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drop ;
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ERROR: invalid-c-string string ;
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: check-string ( string -- )
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0 over memq? [ invalid-c-string ] [ drop ] if ;
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GENERIC# string>alien 1 ( string encoding -- byte-array )
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M: c-ptr string>alien drop ;
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M: string string>alien
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over check-string
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<byte-writer>
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[ stream-write ]
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[ 0 swap stream-write1 ]
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[ stream>> >byte-array ]
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tri ;
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: malloc-string ( string encoding -- alien )
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string>alien malloc-byte-array ;
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PREDICATE: string-type < pair
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first2 [ "char*" = ] [ word? ] bi* and ;
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M: string-type c-type ;
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M: string-type heap-size
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drop "void*" heap-size ;
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M: string-type c-type-align
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drop "void*" c-type-align ;
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M: string-type c-type-stack-align?
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drop "void*" c-type-stack-align? ;
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M: string-type unbox-parameter
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drop "void*" unbox-parameter ;
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M: string-type unbox-return
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drop "void*" unbox-return ;
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M: string-type box-parameter
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drop "void*" box-parameter ;
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M: string-type box-return
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drop "void*" box-return ;
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M: string-type stack-size
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drop "void*" stack-size ;
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M: string-type c-type-reg-class
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drop int-regs ;
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M: string-type c-type-boxer
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drop "void*" c-type-boxer ;
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M: string-type c-type-unboxer
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drop "void*" c-type-unboxer ;
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M: string-type c-type-boxer-quot
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second [ alien>string ] curry [ ] like ;
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M: string-type c-type-unboxer-quot
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second [ string>alien ] curry [ ] like ;
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M: string-type c-type-getter
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drop [ alien-cell ] ;
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M: string-type c-type-setter
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drop [ set-alien-cell ] ;
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! Native-order UTF-16
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SINGLETON: utf16n
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: utf16n ( -- descriptor )
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little-endian? utf16le utf16be ? ; foldable
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M: utf16n <decoder> drop utf16n <decoder> ;
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M: utf16n <encoder> drop utf16n <encoder> ;
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: alien>native-string ( alien -- string )
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os windows? [ utf16n ] [ utf8 ] if alien>string ;
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: dll-path ( dll -- string )
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(dll-path) alien>native-string ;
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: string>symbol ( str -- alien )
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[ os wince? [ utf16n ] [ utf8 ] if string>alien ]
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over string? [ call ] [ map ] if ;
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{ "char*" utf8 } "char*" typedef
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{ "char*" utf16n } "wchar_t*" typedef
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"char*" "uchar*" typedef
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