53 lines
1.4 KiB
Factor
53 lines
1.4 KiB
Factor
! Copyright (C) 2004, 2006 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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IN: parser
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USING: errors generic hashtables io kernel math namespaces
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sequences words ;
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: file-vocabs ( -- )
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"scratchpad" set-in { "syntax" "scratchpad" } set-use ;
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: with-parser ( quot -- )
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[ [ <parse-error> rethrow ] recover ] with-scope ;
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: parse-lines ( lines -- quot )
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[
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dup length f [ 1+ line-number set (parse) ] 2reduce
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>quotation
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] with-parser ;
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: parse ( str -- code ) <string-reader> lines parse-lines ;
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: eval ( "X" -- X ) parse call ;
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SYMBOL: parse-hook
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: parse-stream ( stream name -- quot )
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[
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file set file-vocabs
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lines parse-lines
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parse-hook get call
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] with-scope ;
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: parsing-file ( file -- ) "Loading " write print flush ;
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: parse-file ( file -- quot )
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dup parsing-file [ <file-reader> ] keep parse-stream ;
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: run-file ( file -- ) parse-file call ;
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: no-parse-hook ( quot -- )
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[ parse-hook off call ] with-scope ; inline
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: try-run-file ( file -- ) [ [ run-file ] keep ] try drop ;
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: eval>string ( str -- str )
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[ [ [ eval ] keep ] try drop ] string-out ;
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: parse-resource ( path -- quot )
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dup parsing-file
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[ <resource-reader> "resource:" ] keep append parse-stream ;
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: run-resource ( file -- )
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parse-resource call ;
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