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102 lines
3.6 KiB
Plaintext
102 lines
3.6 KiB
Plaintext
\* html.shen --- html generation functions for shen
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Copyright (C) 2011, Eric Schulte
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*** License:
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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
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met:
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- Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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- Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*** Commentary:
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The standard lisp-to-html conversion tool suite. Follows some of
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the convertions of Clojure's hiccup.
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an example...
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(8-) (html [ul#todo1.tasks.stuff [: [title "today"]]
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(map (lambda Str [li Str]) ["get milk" "dishes"])])
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"<ul class='tasks stuff' id='todo1' title='today'>
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<li>get milk</li><li>dishes</li></ul>"
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*** Code: *\
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(trap-error
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(require string)
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(/. E (load "../string/string.shen")))
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(package string- [html
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\* symbols included from string *\
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takestr dropstr substr length-str index-str
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reverse-str starts-with substr? replace-str
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join split trim-left trim-right chomp trim]
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(define to-str
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\* return argument as a string, if already a string do not change *\
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X -> X where (string? X)
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X -> (str X))
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(define gassoc
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X Y -> (hd (tl (assoc X Y))))
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(define dassoc
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X Y -> (remove (assoc X Y) Y))
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(define passoc
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[] Y -> Y
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[X XV] Y -> (let Orig (gassoc X Y)
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New (if (cons? Orig) [XV|Orig] XV)
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[[X New]|(dassoc X Y)]))
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(define html
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X -> X where (string? X)
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[Tag [: |Attrs] |Body] ->
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(let Tag-comps (css-parse-symbol Tag)
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Tag (gassoc tag Tag-comps)
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New-attrs (passoc (assoc class Tag-comps)
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(passoc (assoc id Tag-comps) Attrs))
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(@s (make-string "<~S" Tag) (attributes New-attrs) ">"
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(html Body)
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(make-string "</~S>" Tag))) where (symbol? Tag)
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[Tag|Body] -> (html [Tag [:] Body]) where (symbol? Tag)
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[H|HS] -> (@s (html H) (html HS))
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[] -> "")
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(define css-parse-symbol
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{symbol --> [[symbol A]]}
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Symbol -> (let String (str Symbol)
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Class-split (split (str .) String)
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Class (map (function intern) (tl Class-split))
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Id-split (split (str #) (hd Class-split))
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Tag (hd Id-split)
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Id (tl Id-split)
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((if (= [] Id) (/. X X) (cons [id (intern (hd Id))]))
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((if (= [] Class) (/. X X) (cons [class Class]))
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[[tag (intern Tag)]]))))
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(define attributes
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[] -> ""
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[[K V]|AS] -> (@s " " (to-str K) "='"
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(if (cons? V) (join " " (map (function str) V)) (to-str V))
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"'" (attributes AS)))
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) |