118 lines
3.5 KiB
Factor
118 lines
3.5 KiB
Factor
! :folding=indent:collapseFolds=1:
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! $Id$
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!
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! Copyright (C) 2003 Slava Pestov.
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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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IN: parser
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USE: errors
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USE: namespaces
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USE: stack
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USE: streams
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USE: strings
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: parse-file ( file -- list )
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dup <freader> parse-stream ;
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: run-file ( path -- )
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parse-file call ;
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: <resource-stream> ( path -- stream )
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<rreader> f <char-stream> ;
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: parse-resource* ( resource -- list )
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dup <rreader> swap "resource:" swap cat2 swap parse-stream ;
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: parse-resource ( file -- )
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#! Override this to be slightly more useful for development.
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global [ "resource-path" get ] bind dup [
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swap cat2 parse-file
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] [
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drop parse-resource*
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] ifte ;
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: <custom-parser> ( filename reader interactive docs -- parser )
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interpreter
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[
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"java.lang.String"
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"java.io.BufferedReader"
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"boolean"
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"boolean"
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"factor.FactorInterpreter"
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]
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"factor.FactorReader" jnew ;
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: interactive-parse-stream ( filename reader -- list )
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#! Reads until end-of-file from the reader, building a parse
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#! tree. The filename is used for error reporting.
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#!
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#! This form should be used by the outer interpreter only.
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#! Its default vocabularies are:
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#! global [ "use" get ] bind
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#! global [ "in" get ] bind
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f t <custom-parser> parse* ;
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: (run-file) ( path -- )
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dup <freader> interactive-parse-stream call ;
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: parse ( str -- list )
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#! Parse a string using an interactive parser.
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"<interactive>" swap <sreader> <breader> interactive-parse-stream ;
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: eval ( "X" -- X )
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parse call ;
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: base> ( str base -- num )
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#! Parse a number in a specified base.
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[ "java.lang.String" "int" ]
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"factor.math.NumberParser"
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"parseNumber"
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jinvoke-static ;
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: bin> ( str -- num )
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#! Convert a binary string to a number.
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2 base> ;
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: oct> ( str -- num )
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#! Convert an octal string to a number.
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8 base> ;
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: dec> ( str -- num )
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#! Convert a decimal string to a number.
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10 base> ;
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: hex> ( str -- num )
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#! Convert a hexadecimal string to a number.
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16 base> ;
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! Something really sucks about these words here
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: parse-number ( str -- num ) dec> ;
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: str>number ( str -- num )
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dup "base" get base> dup [
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nip
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] [
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drop "Not a number: " swap cat2 throw
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] ifte ;
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