Initial json contrib library
chris.double
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! Copyright (C) 2006 Chris Double.
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!
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! Redistribution and use in source and binary forms, with or without
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! modification, are permitted provided that the following conditions are met:
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!
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! 1. Redistributions of source code must retain the above copyright notice,
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! this list of conditions and the following disclaimer.
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!
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! 2. Redistributions in binary form must reproduce the above copyright notice,
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! this list of conditions and the following disclaimer in the documentation
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! and/or other materials provided with the distribution.
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!
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! THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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! INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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! FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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! DEVELOPERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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! SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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! PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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! OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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! WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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! OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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! ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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!
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USING: kernel namespaces sequences strings math parser-combinators ;
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IN: json
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! Grammar for JSON from RFC 4627
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USE: inspector
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: [<&>] ( quot - quot )
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{ } make unclip [ <:&> ] reduce ;
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: [<|>] ( quot - quot )
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{ } make unclip [ <|> ] reduce ;
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: 'begin-array' ( -- parser )
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"[" token ;
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: 'begin-object' ( -- parser )
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"{" token ;
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: 'end-array' ( -- parser )
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"]" token ;
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: 'end-object' ( -- parser )
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"}" token ;
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: 'name-separator' ( -- parser )
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":" token ;
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: 'value-separator' ( -- parser )
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"," token ;
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: 'false' ( -- parser )
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"false" token ;
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: 'null' ( -- parser )
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"null" token ;
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: 'true' ( -- parser )
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"true" token ;
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: 'quot' ( -- parser )
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"\"" token ;
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: 'string' ( -- parser )
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'quot'
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[ quotable? ] satisfy <+> &>
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'quot' <& [ >string ] <@ ;
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DEFER: 'value'
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: 'member' ( -- parser )
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'string'
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'name-separator' <&
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[ 'value' call ] <:&> ;
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: 'object' ( -- parser )
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'begin-object'
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'member' &>
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'value-separator' 'member' &> <*> <:&>
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'end-object' <& ;
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: 'array' ( -- parser )
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'begin-array'
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[ 'value' call ] &>
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'value-separator' [ 'value' call ] &> <*> <&:>
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'end-array' <& ;
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: 'minus' ( -- parser )
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"-" token ;
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: 'plus' ( -- parser )
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"+" token ;
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: 'zero' ( -- parser )
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"0" token [ drop 0 ] <@ ;
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: 'decimal-point' ( -- parser )
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"." token ;
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: 'digit1-9' ( -- parser )
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[
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dup integer? [
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CHAR: 1 CHAR: 9 between?
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] [
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drop f
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] if
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] satisfy [ digit> ] <@ ;
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: 'digit0-9' ( -- parser )
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[ digit? ] satisfy [ digit> ] <@ ;
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USE: inspector
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: sequence>number ( seq -- num )
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#! { 1 2 3 } => 123
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0 [ swap 10 * + ] reduce ;
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: 'int' ( -- parser )
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'zero'
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'digit1-9' 'digit0-9' <*> <&:> [ sequence>number ] <@ <|> ;
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: 'e' ( -- parser )
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"e" token "E" token <|> ;
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: 'exp' ( -- parser )
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[
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'e' ,
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'minus' 'plus' <|> <?> ,
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'digit0-9' <+> ,
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] [<&>] ;
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: 'frac' ( -- parser )
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'decimal-point' 'digit0-9' <+> <&> ;
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: 'number' ( -- parser )
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'minus' <?>
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'int' <&>
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'frac' <?> <:&>
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'exp' <?> <:&> ;
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: 'value' ( -- parser )
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[
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'false' ,
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'null' ,
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'true' ,
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'string' ,
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'object' ,
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'array' ,
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'number' ,
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] [<|>] ;
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@ -0,0 +1,74 @@
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! Copyright (C) 2006 Chris Double.
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!
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! Redistribution and use in source and binary forms, with or without
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! modification, are permitted provided that the following conditions are met:
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|
!
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! 1. Redistributions of source code must retain the above copyright notice,
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|
! this list of conditions and the following disclaimer.
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|
!
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! 2. Redistributions in binary form must reproduce the above copyright notice,
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|
! this list of conditions and the following disclaimer in the documentation
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! and/or other materials provided with the distribution.
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!
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! THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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! INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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! FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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! DEVELOPERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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! SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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! PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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! OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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! WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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! OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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! ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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!
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USING: kernel strings namespaces math arrays sequences generic words hashtables kernel-internals io ;
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IN: json
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#! Writes the object out to a stream in JSON format
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GENERIC: json-print ( obj -- )
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: >json ( obj -- string )
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#! Returns a string representing the factor object in JSON format
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[ json-print ] string-out ;
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M: f json-print ( f -- )
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"false" write ;
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M: string json-print ( obj -- )
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CHAR: " write1 write CHAR: " write1 ;
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M: number json-print ( num -- )
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number>string write ;
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M: sequence json-print ( array -- string )
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CHAR: [ write1 [ >json ] map "," join write CHAR: ] write1 ;
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: (jsvar-encode) ( char -- char )
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#! Convert the given character to a character usable in
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#! javascript variable names.
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dup H{ { CHAR: - CHAR: _ } } hash dup [ nip ] [ drop ] if ;
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: jsvar-encode ( string -- string )
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#! Convert the string so that it contains characters usable within
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#! javascript variable names.
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[ (jsvar-encode) ] map ;
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: >tuple< ( object -- array )
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#! Return an array holding the value of the slots of the tuple
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dup class "slots" word-prop [ first slot ] map-with ;
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: slots ( object -- values names )
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#! Given an object return an array of slots names and a sequence of slot values
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#! the slot name and the slot value.
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[ >tuple< 1 tail ] keep class "slot-names" word-prop ;
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: slots>fields ( values names -- array )
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#! Convert the arrays containing the slot names and values
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#! to an array of strings suitable for describing that slot
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#! as a field in a javascript object.
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[
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[ jsvar-encode >json % " : " % >json % ] "" make
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] 2map ;
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M: object json-print ( object -- string )
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CHAR: { write1 slots slots>fields "," join write CHAR: } write1 ;
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@ -0,0 +1,29 @@
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! Copyright (C) 2006 Chris Double.
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!
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! Redistribution and use in source and binary forms, with or without
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! modification, are permitted provided that the following conditions are met:
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!
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! 1. Redistributions of source code must retain the above copyright notice,
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! this list of conditions and the following disclaimer.
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!
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! 2. Redistributions in binary form must reproduce the above copyright notice,
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! this list of conditions and the following disclaimer in the documentation
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! and/or other materials provided with the distribution.
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!
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! THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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! INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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! FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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! DEVELOPERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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! SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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! PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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! OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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! WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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! OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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! ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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!
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REQUIRES: parser-combinators ;
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PROVIDE: json {
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"json-reader.factor"
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"json-writer.factor"
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} {
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} ;
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