74 lines
2.3 KiB
Factor
74 lines
2.3 KiB
Factor
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!:folding=indent:collapseFolds=1:
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! $Id$
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!
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! Copyright (C) 2004 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: url-encoding
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USE: arithmetic
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USE: combinators
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USE: kernel
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USE: format
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USE: parser
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USE: regexp
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USE: stack
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USE: strings
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USE: unparser
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: url-encode ( str -- str )
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[
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dup "[a-zA-Z0-9/_?]" re-matches [
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"%" swap >number >hex 2 digits cat2
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] unless
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] str-map ;
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: url-decode-hex ( index str -- )
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2dup str-length 2 - >= [
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2drop
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] [
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! Note that hex> will push f if there is an invalid
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! hex literal
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[ succ dup 2 + ] dip substring hex> [ >char % ] when*
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] ifte ;
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: url-decode-% ( index str -- index str )
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2dup url-decode-hex [ 3 + ] dip ;
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: url-decode-+-or-other ( index str -- index str )
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dup "+" = [ drop " " ] when % [ succ ] dip ;
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: url-decode-iter ( index str -- )
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2dup str-length >= [
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2drop
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] [
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2dup str-nth dup "%" = [
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drop url-decode-%
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] [
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url-decode-+-or-other
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] ifte url-decode-iter
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] ifte ;
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: url-decode ( str -- str )
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<% 0 swap url-decode-iter %> ;
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