78 lines
2.2 KiB
Forth
78 lines
2.2 KiB
Forth
# RETRO
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This is a set of extensions for RRE.
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# I/O Extensions
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# Console Input
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~~~
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{{
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'io:Keyboard var
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:identify
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@io:Keyboard n:zero? [
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#1 io:scan-for dup n:negative?
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[ drop 'IO_DEVICE_TYPE_0001_NOT_FOUND s:put nl ]
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[ !io:Keyboard ] choose ] if ;
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---reveal---
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:c:get (-c) identify @io:Keyboard io:invoke ;
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}}
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~~~
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---------------------------------------------------------------
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# Scripting: Command Line Arguments
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~~~
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{{
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'io:Scripting var
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:identify
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@io:Scripting n:zero? [
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#9 io:scan-for dup n:negative?
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[ drop 'IO_DEVICE_TYPE_0009_NOT_FOUND s:put nl ]
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[ !io:Scripting ] choose ] if ;
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---reveal---
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:sys:argc (-n) identify #0 @io:Scripting io:invoke ;
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:sys:argv (n-s) s:empty swap identify #1 @io:Scripting io:invoke ;
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:include (s-) identify #2 @io:Scripting io:invoke ;
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}}
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~~~
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# Interactive Listener
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~~~
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'NoEcho var
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{{
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:version (-) @Version #100 /mod n:put $. c:put n:put ;
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:eol? (c-f) [ ASCII:CR eq? ] [ ASCII:LF eq? ] [ ASCII:SPACE eq? ] tri or or ;
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:valid? (s-sf) dup s:length n:-zero? ;
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:ok (-) @NoEcho not 0; drop compiling? [ nl 'Ok_ s:put ] -if ;
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:check-eof (c-c) dup [ #-1 eq? ] [ #4 eq? ] bi or [ 'bye d:lookup d:xt fetch call ] if ;
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:check-bs (c-c) dup [ #8 eq? ] [ #127 eq? ] bi or [ buffer:get buffer:get drop-pair ] if ;
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:s:get (-s) [ #1025 buffer:set
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[ c:get dup buffer:add check-eof check-bs eol? ] until
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buffer:start s:chop ] buffer:preserve ;
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---reveal---
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:banner (-) @NoEcho not 0; drop
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'RETRO_12_(rx- s:put version $) c:put nl
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EOM n:put '_MAX,_TIB_@_1025,_Heap_@_ s:put here n:put nl ;
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:bye (-) #0 unix:exit ;
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:listen (-)
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ok repeat s:get valid? [ interpret ok ] [ drop ] choose again ;
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}}
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~~~
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~~~
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{{
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:gather (c-)
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dup [ #8 eq? ] [ #127 eq? ] bi or [ drop ] [ buffer:add ] choose ;
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:cycle (q-qc) repeat c:get dup-pair swap call not 0; drop gather again ;
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---reveal---
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:parse-until (q-s)
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[ s:empty buffer:set cycle drop-pair buffer:start ] buffer:preserve ;
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}}
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:s:get (-s) [ [ ASCII:LF eq? ] [ ASCII:CR eq? ] bi or ] parse-until ;
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~~~
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