2004-07-22 19:48:50 -04:00
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! :folding=indent:collapseFolds=1:
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2004-07-16 02:26:21 -04:00
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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: html
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USE: combinators
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USE: format
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USE: lists
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USE: logic
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2004-08-21 02:55:37 -04:00
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USE: kernel
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2004-07-16 02:26:21 -04:00
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USE: namespaces
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USE: stack
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USE: stdio
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USE: streams
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USE: strings
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USE: unparser
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USE: url-encoding
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: html-entities ( -- alist )
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[
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2004-07-22 19:48:50 -04:00
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[ CHAR: < | "<" ]
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[ CHAR: > | ">" ]
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[ CHAR: & | "&" ]
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[ CHAR: ' | "'" ]
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[ CHAR: " | """ ]
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2004-07-16 02:26:21 -04:00
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] ;
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2004-08-08 21:24:01 -04:00
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: char>entity ( ch -- str )
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dup >r html-entities assoc dup r> ? ;
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2004-07-16 02:26:21 -04:00
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: chars>entities ( str -- str )
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#! Convert <, >, &, ' and " to HTML entities.
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[ dup html-entities assoc dup rot ? ] str-map ;
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: opening-tag ( tag attrs -- )
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"<" % swap % [ " " % % ] when* ">" % ;
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: closing-tag ( tag -- )
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"</" % % ">" % ;
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: html-tag ( str tag attrs -- str )
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#! Wrap a string in an HTML tag.
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<% dupd opening-tag swap % closing-tag %> ;
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: link-attrs ( link -- attrs )
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<% "href=\"/inspect/" % % "\"" % %> ;
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: link-tag ( string link -- string )
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url-encode "a" swap link-attrs html-tag ;
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: bold-tag ( string -- string )
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"b" f html-tag ;
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: italics-tag ( string -- string )
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"i" f html-tag ;
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: underline-tag ( string -- string )
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"u" f html-tag ;
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: >hex-color ( triplet -- hex )
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[ >hex 2 digits ] inject "#" swons cat ;
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: fg-tag ( string color -- string )
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"font" swap "color=\"" swap >hex-color "\"" cat3 html-tag ;
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: size-tag ( string size -- string )
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"font" swap "size=\"" swap "\"" cat3 html-tag ;
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2004-08-21 02:55:37 -04:00
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: html-attr-string ( string style -- string )
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[
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[ "fg" fg-tag ]
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[ "bold" drop bold-tag ]
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[ "italics" drop italics-tag ]
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[ "underline" drop underline-tag ]
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[ "size" size-tag ]
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[ "link" link-tag ]
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] assoc-each ;
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2004-08-21 02:55:37 -04:00
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: html-write-attr ( string style stream -- )
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rot chars>entities rot html-attr-string swap fwrite ;
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2004-07-16 02:26:21 -04:00
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: <html-stream> ( stream -- stream )
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#! Wraps the given stream in an HTML stream. An HTML stream
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#! converts special characters to entities when being
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#! written, and supports writing attributed strings with
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#! the following attributes:
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#!
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#! link - an object path
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#! fg - an rgb triplet in a list
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#! bg - an rgb triplet in a list
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#! bold
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#! italic
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#! underline
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<extend-stream> [
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[ chars>entities "stream" get fwrite ] "fwrite" set
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[ chars>entities "stream" get fprint ] "fprint" set
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[ "stream" get html-write-attr ] "fwrite-attr" set
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] extend ;
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: with-html-stream ( quot -- )
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2004-08-10 23:48:08 -04:00
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[
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"stdio" get <html-stream> "stdio" set call
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] with-scope ;
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2004-07-16 02:26:21 -04:00
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: html-head ( title -- )
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"<html><head><title>" write
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dup write
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"</title></head><body><h1>" write write "</h1>" write ;
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: html-tail ( -- ) "</body></html>" print ;
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: html-document ( title quot -- )
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swap chars>entities html-head call html-tail ;
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: preformatted-html ( quot -- )
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"<pre>" print call "</pre>" print ;
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: simple-html-document ( title quot -- )
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swap [
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[ [ call ] with-html-stream ] preformatted-html
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] html-document ;
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