112 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			Factor
		
	
	
			
		
		
	
	
			112 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			Factor
		
	
	
! Copyright (C) 2003, 2009 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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USING: init continuations hashtables io io.encodings.utf8
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io.files io.pathnames kernel kernel.private namespaces parser
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sequences source-files strings system splitting vocabs.loader
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alien.strings accessors eval ;
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IN: command-line
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SYMBOL: script
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SYMBOL: command-line
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: (command-line) ( -- args )
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    10 special-object sift [ alien>native-string ] map ;
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: rc-path ( name -- path )
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    home prepend-path ;
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: run-bootstrap-init ( -- )
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    "user-init" get [
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        ".factor-boot-rc" rc-path ?run-file
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    ] when ;
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: run-user-init ( -- )
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    "user-init" get [
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        ".factor-rc" rc-path ?run-file
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    ] when ;
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: load-vocab-roots ( -- )
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    "user-init" get [
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        ".factor-roots" rc-path dup exists? [
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            utf8 file-lines harvest [ add-vocab-root ] each
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        ] [ drop ] if
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    ] when ;
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: var-param ( name value -- ) swap set-global ;
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: bool-param ( name -- ) "no-" ?head not var-param ;
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: param ( param -- )
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    "=" split1 [ var-param ] [ bool-param ] if* ;
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: run-script ( file -- )
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    t "quiet" [
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        [ run-file ]
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        [ source-file main>> [ execute( -- ) ] when* ] bi
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    ] with-variable ;
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: parse-command-line ( args -- )
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    [ command-line off script off ] [
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        unclip "-" ?head
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        [ param parse-command-line ]
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        [ script set command-line set ] if
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    ] if-empty ;
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SYMBOL: main-vocab-hook
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: main-vocab ( -- vocab )
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    embedded? [
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        "alien.remote-control"
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    ] [
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        main-vocab-hook get [ call( -- vocab ) ] [ "listener" ] if*
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    ] if ;
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: default-cli-args ( -- )
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    global [
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        "quiet" off
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        "e" off
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        "user-init" on
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        embedded? "quiet" set
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        main-vocab "run" set
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    ] bind ;
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[ default-cli-args ] "command-line" add-startup-hook
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: cli-usage ( -- )
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"""
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Usage: """ write vm file-name write """ [Factor arguments] [script] [script arguments]
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Common arguments:
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    -help            print this message and exit
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    -i=<image>       load Factor image file <image> (default """ write vm file-name write """.image)
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    -run=<vocab>     run the MAIN: entry point of <vocab>
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    -e=<code>        evaluate <code>
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    -quiet           suppress "Loading vocab.factor" messages
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    -no-user-init    suppress loading of .factor-rc
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Enter
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    "command-line" help
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from within Factor for more information.
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""" write ;
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: command-line-startup ( -- )
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    (command-line) parse-command-line
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    "help" get "-help" get or "h" get or [ cli-usage ] [
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        "e" get script get or "quiet" [
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            load-vocab-roots
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            run-user-init
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            "e" get script get or [
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                "e" get [ eval( -- ) ] when*
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                script get [ run-script ] when*
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            ] [
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                "run" get run
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            ] if
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        ] with-variable
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    ] if
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    output-stream get [ stream-flush ] when*
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    0 exit ;
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