site.cd 17.3 KB
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(* This CDuce script produces CDuce web site. *)

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(** Command line **)

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let input =
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  match argv [] with
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  | [ s ] -> s
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  | _ -> raise "Please use --arg to specify an input file on the command line"
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(** Output types **)
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using H = "xhtml"
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(** Input types **)

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type Site = <site>[ <title>String Page ]
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type Page =  <page name=Latin1 url=?String new=?"">[ <title>String <banner>[InlineText*]? Item* ]
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type External = <external {|href=String; title=String; name=String |}>[]
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type Item = 
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   <box ({| title=String; link=String; short=?String |} | {| |})>Content
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 | <meta>Content
 | <left>Content
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 | <footnotes>[]
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 | Page
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 | External
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type Author = <author presenter=?("yes"|"no")>String
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type Paper = 
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  <paper file=?String old=?"">[ 
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     <title>String Author+ <comment>[InlineText*] <abstract>Content ]
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type Slides = 
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  <slides file=String>[ <title>String Author+ <comment>[InlineText*] ]
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type Link =
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  <link url=String title=String>[ InlineText* ]
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type Content =      
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   [ ( <p {|style=?String|}>[InlineText*]
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     | <ul {||}>[<li {||}>Content *]
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     | <ol {|style=?String|}>[<li {||}>Content *]
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     | <section title=String>Content
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     | <sample highlight=?"true"|"false">String
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     | <xmlsample highlight=?"true"|"false">String
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     | <sessionsample highlight=?"true"|"false">String
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     | H:Xtable
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     | Paper | Slides | Link
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     | <boxes-toc short=?"" sections=?"">[]
     | <pages-toc sections=?"">[]
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     | <site-toc>[]
     | <local-links href=String>[]
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     | <two-columns>[ <left>Content <right>Content ]
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     | <note title=?String> Content
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     | <footnotes>[]
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     | <xhtml>H:Flow
     | <demo>String 
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     | InlineText
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     )* ]
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type InlineText =
     Char
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   | <(`b|`i|`tt|`em) {| style=?String |}>[InlineText*]
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   | <code>String
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   | <local href=String>String
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   | <footnote>[InlineText*]
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   | H:Xa | H:Ximg | H:Xbr
   | <thumbnail href=String width=?IntStr height=?IntStr>[]
   | <thumbnails href=String width=?IntStr height=?IntStr>[ PCDATA ]

type IntStr = ['0'--'9'+]

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(** Generic purpose functions **)

(* Recursive inclusion of XML files and verbatim text files *)

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let load_include (Latin1 -> [Any*])
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 name ->
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(*   let _ = print [ 'Loading ' !name '... \n' ] in *)
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   xtransform [ (load_xml name) ] with 
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   | <include file=(s & Latin1)>[] -> load_include s
   | <include-verbatim file=(s & Latin1)>[] -> load_file s 
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(* Highlighting text between {{...}} *)
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let highlight (String -> [ (Char | H:Xstrong | H:Xi)* ] )
 | [ '{{%%' h ::(Char *?) '%%}}' ; rest ] -> 
          [ <strong class="highlight">[<i>h]; highlight rest ]
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 | [ '{{' h ::(Char *?) '}}' ; rest ] -> 
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          [ <strong class="highlight">h; highlight rest ]
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 | [ '$$%%' h ::(Char *?) '%%$$' ; rest ] -> 
          [ <strong class="ocaml">[<i>h]; highlight rest ]
 | [ '$$' h ::(Char *?) '$$' ; rest ] -> 
          [ <strong class="ocaml">h; highlight rest ]
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 | [ '%%' h ::(Char *?) '%%' ; rest ] ->
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          [ <i>h; highlight rest ] 
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 | [ c; rest ] -> [ c; highlight rest ]
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 | [] -> []
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(* Split a comma-separated string *)

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let split_comma (String -> [String*])
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 | [ x::(Char*?) ',' ; rest ] -> (x, split_comma rest)
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 | s -> [ s ]
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type wschar = ' ' | '\n' | '\t' | '\r'

let split_thumbnails (String -> [(String,String)*])
 | [ wschar* x::(Char\wschar\':')+ ':' y::_*? '.'; rest ] -> 
        ((x,y), split_thumbnails rest)
 | [ wschar* x::(Char\wschar)+; rest ] -> 
        ((x,""), split_thumbnails rest)
 | [ wschar* ] -> []
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(** Internal types **)
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type Path = [ { url = String; title = String }* ]
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type Tree = { name = String; url = String; title = String; 
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              children = [Tree*]; boxes = [H:Xul?] } 
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let url_of_page (Page -> String)
 | <page url=u>_ -> u
 | <page name=n>_ -> n @ ".html"
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let render(a : String)(p : {presenter=?"yes"|"no"}) : H:Flow =
         (match p with  {presenter="yes"} -> [<strong class="ocaml">a] | _ -> a)

let authors ([Author+] -> H:Flow)
 | [ <author (p)>a ] -> render a p
 | [ <author (p1)>a1 <author (p2)>a2 ] -> (render a1 p1) @ ", and " @ (render a2 p2)
 | [ <author (p)>a; rem ] -> (render a p)@ ", " @ authors rem
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let find_local_link (sitemap : [Tree*], l : String) : Tree =
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match sitemap with
 | (h,t) ->
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   if (h . name = l) then h
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   else 
    (try find_local_link (t,l) with `Not_found -> 
         find_local_link (h . children,l))
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 | [] -> raise `Not_found
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let local_link (sitemap : Tree, l : String, txt : String) : H:Inline =
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 try 
  let h = find_local_link ([sitemap],l)  in
  let txt = if txt = "" then h . title else txt in
  <a href=(h . url)>txt
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 with `Not_found -> raise [ 'Local link not found: ' !l ]
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let compute_sitemap ((Page|External) -> Tree)
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 | <page name=name>[ <title>title (c::(Page|External) | _)* ] & p ->
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   let children = map c with p -> compute_sitemap p in
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   { name = name; url = (url_of_page p); title = title; 
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     children = children; boxes = (boxes_of p) }
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 | <external name=name href=h title=t>[] ->
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   { name = name; url = h; title = t; children = []; boxes = [] }
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let ul([H:Xli*] -> [H:Xul?]) [] -> [] | l -> [ <ul>l ]

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let ol(([H:Xli*],{|style=?String|}) -> [H:Xol?]) 
      ([],_) -> [] 
    | (l,s&{|style=?String|}) -> [ <ol (s)>l ] 


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let display_sitemap (h : Tree) :  H:Xli =
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  let ch = map h . children with x -> display_sitemap x in
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  <li>[ <a href=(h . url)>[ '[' !(h . title) ']' ] !(h . boxes); (ul ch) ]
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let boxes_of (Page -> [H:Xul?])
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<page>[ (items::Item | _)*] & p ->
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 let toc = transform items with 
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 | <box title=t link=l>_ -> [ <li>[ <a href=[ !(url_of_page p) '#' !l ]>t ] ] 
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 in
 ul toc

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let link_to (<page>[<title>t ; _ ] & p : Page) : H:Xa =
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 let t = match p with
 | <_ new="">_ -> t @ [ <img src="img/new.gif" alt="(new)" style="border:0">[]]
 | _ -> t in
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 <a href=(url_of_page p)>t
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let small_box (x : H:Flow) : H:Block =
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 <table cellpadding="2" 
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    style="font-size:11px ; font-family:arial,sans-serif;
           border: solid 2px black; background: #ffffff" width="100%">
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   [ <tr> [<td>x] ]

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let meta (x : H:Flow) : H:Block =
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 <table cellpadding="2" 
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    style="border: solid 1px #b0b0b0; background: #e0e0e0; font-size: 80%"  
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    width="100%">
   [ <tr> [<td>x] ]

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let box_title (x : H:Flow, a : String, t : String) : H:Block =
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 <table cellpadding="5" 
    style="border: solid 2px black; background: #ffffff" width="100%">
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   [ <tr>[ 
       <td style="background: #fff0f0; color: #0000ff; font: bold 100%
                  helvetica">[<a name=a>t] ] 
     <tr> [<td>x] ]
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let box (x : H:Flow) : H:Block =
 <table cellpadding="5" 
    style="border: solid 2px black; background: #ffffff" width="100%">
   [ <tr> [<td>x] ]

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let style = "
a:link:hover, a:visited:hover {
  text-decoration: none;
  background: #FFFFD0;
  color: #FF0000;
}
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a.old, a.old:hover, a.old:visited:hover { text-decoration: line-through; }
p { text-align: justify; margin: 1ex 1em 0 1em; }
pre { margin: 1ex 1em 0 1em; }
strong.ocaml{ color: #333b8e; }
strong.highlight { color: #FF0000; }
img.icon { border: 0; }
div.code { background: #E0E0E0; margin: 0.5ex 0.5em 0 0.5em; padding: 0.2ex; }
div.xmlcode { background:#ebefa2; margin: 0.5ex 0.5em 0 0.5em; padding: 0.2ex;}
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div.abstract { 
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  font: bold helvetica;
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  margin: 1ex 1em 1ex 1em;
  padding: 1ex 1em 1ex 1em;
  background: #F0F0F0;
}
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div.note { 
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  text-align: justify;
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  font: bold helvetica;
  margin: 1ex 3em 1ex 3em;
  padding: 1ex 1em 1ex 1em;
  background: #D0E2D2;
}

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div.session
 { 
  font: bold 80% helvetica;
  margin: 1ex 1em 1ex 1em;
  padding: 1ex 1em 1ex 1em;
  border: solid .5px grey;
}

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div.abstract p { font: sans-serif; }
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"

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type PageO = Page | []

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let button(title : String)(onclick : String) : H:Xinput =
  <input type="submit" value=title onclick=onclick>[]

let demo(no : Int)(txt : String) : H:Flow = 
 let n = [ 'a' !(string_of no) '_' ] in
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 [ !(if (no = 1) then [<script src="demo.js" type="text/javascript">" "]
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     else [])
  <table style="width:100%">[
   <tr>[ 
    <td style="width:50%">[
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     <input type="button" id=(n@"btn") value="Edit" onclick=("editable('"@n@"','');")>[]
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     (button "Evaluate" ("submit('"@n@"');"))
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     (button "Default" ("defreq('"@n@"');"))
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     <input type="button" id=(n@"btnclear") value="Clear" onclick=("clearreq('"@n@"');") style="visibility:hidden;">[]
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    ]
    <td style="width:50%">[
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     <input id=(n@"def") type="hidden" value=txt>[]
     (button "Clear" ("clearres('"@n@"');"))
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    ] ]
   <tr>[
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    <td valign="top">[ 
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     <div style="position:relative;" id=(n@"container")>[
      <pre style="z-level:1;" id=(n@"req")>txt
      <textarea id=(n@"edit") cols="60" rows="25" style="position:absolute; top:0px; visibility: hidden; display:block;border:1px solid #CCCCCC; z-level:2; background-color:#EDEDED;">txt 
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     ]
    ]
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    <td valign="top">[ <div id=(n@"res")>[] ] ] ] 
  ]
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(* Main transformation function *)

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(* returns the last page of the descendance *)
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let thumbnail(w : String, h : String)
 (url : String)(title : String) : H:Inlines =
 [ <a href=url>[ 
   <img src=url width=w height=h alt="Click to enlarge" title=title>[] ] ]

let thumbwh({ width =? IntStr; height =? IntStr} -> 
   (String -> String ->H:Inlines))
  | { width = w; height = h } ->
      let w = int_of w in let h = int_of h in
      (match h with
       | 0 -> raise "Thumbnail height = 0"
       | h -> let w = string_of ((w * 200) div h) in thumbnail (w,"200"))
  | _ -> thumbnail ("266","200")

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let gen_page (site : String,
              prev : PageO, page : Page, next : PageO, 
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              path : Path, sitemap : Tree) : PageO = 
match page with 
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<page name=name>[ 
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 <title>title <banner>banner | <title>(title & banner); items ] ->
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 let footnote_counter = ref Int 0 in 
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 let footnotes = ref H:Flow [] in
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 let demo_no = ref Int 0 in
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 let text (t : [InlineText*]) : H:Inlines =
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  transform t with
   | <code>x -> [ <b>[ <tt>(highlight x) ] ]
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   | <local href=l>txt -> 
	[ (local_link (sitemap,l,txt)) ]
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   | <(tag & (`b|`i|`tt|`em)) (attr)>x -> [ <(tag) (attr)>(text x) ]
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   | <footnote nocount=_>_ -> 
      let n = string_of !footnote_counter in
      [ <a name=[ 'bnote' !n ]>[]
        <a href=[ '#note' !n ]>[ '[' !n ']' ] ]

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   | <footnote>c -> 
      footnote_counter := !footnote_counter + 1;
      let n = string_of !footnote_counter in
      let fn = !footnotes in
      footnotes := [];
      let c = <p>[ <a name=[ 'note' !n ]>[] 
                   <a href=[ '#bnote' !n ]>[ '[' !n ']' ]
		   ' ' ; text c ] in
      footnotes := fn @ [ c ] @ !footnotes;
      [ <a name=[ 'bnote' !n ]>[]
        <a href=[ '#note' !n ]>[ '[' !n ']' ] ]
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   | <thumbnail ({href=url} & r)>[] ->
      thumbwh r url ""
   | <thumbnails ({href=url} & r)>l ->
      let l = split_thumbnails l in
      let f = thumbwh r in
      let c = ref Int 0 in
      (transform l with (x,y) -> 
          let t = f (url @ x) y in
          if (!c = 4) then (c := 1; [ <br>[] ] @ t)
          else (c := !c + 1; t))
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   | z -> [ z ] 
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 in
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 let content (t : Content) : H:Flow =
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  transform t with
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   | <section title=title>c -> 
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         [ <p>[ <b style="color: #008000">title ] !(content c) ]
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   | <paper (r)>[ <title>tit aut::Author* <comment>com <abstract>ab  ]  ->
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         [ (match r with
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           | { file = f; old = "" } -> <a class="old" href=f>tit
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           | { file = f } -> <a href=f>tit
           | _ -> <b>tit) '. '
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           !(authors aut) '. '
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	   !(text com)
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           <div class="abstract">[ 'Abstract:' !(content ab) ]
         ]
   | <slides file=f>[ <title>tit aut::Author* <comment>com ]  ->
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        [ <a href=f>tit '. ' !(authors aut) '. ' !(text com) ]
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   | <sample highlight="false">s ->
        [ <div class="code">[ <pre>s ] ]
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   | <sample>s ->
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        [ <div class="code">[ <pre>(highlight s) ] ]
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   | <xmlsample highlight="false">s ->
        [ <div class="xmlcode">[ <pre>s ] ]
   | <xmlsample>s ->
        [ <div class="xmlcode">[ <pre>(highlight s) ] ]
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   | <sessionsample highlight="false">s ->
        [ <div class="session">[ <pre>s ] ]
   | <sessionsample>s ->
        [ <div class="session">[ <pre>(highlight s) ] ]
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   | <link url=url title=title>com -> 
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        [ <ul>[ <li>[ <a href=url>title '. ' !(text com) ] ] ]
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   | <ul>lis -> 
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        ul (map lis with <li>x -> <li>(content x))
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   | <ol (attr) >lis -> 
        ol ((map lis with <li>x -> <li>(content x) ),(attr))
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   | H:Xtable & x -> 
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       [ <table width="100%">[<tr>[<td align="center">[x]]] ]
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   | <p (attr)>x -> [ <p (attr)>(text x) ]
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   | <pages-toc (a)>[] ->
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      let toc = transform items with 
      | Page & p -> 
        let sects = match a with {|sections=_|} -> boxes_of p | _ -> [] in
        [ <li>[ (link_to p) ; sects ] ]
      | <external href=l title=t>[] -> [ <li>[ <a href=l>t ] ] in
      ul toc
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   | <boxes-toc (a)>[] ->
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      let sections = match a with { section=_ } -> `true | _ -> `false in
      let short = match a with { short=_ } -> `true | _ -> `false in
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      let toc = transform items with 
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      | <box ({title=t; link=l} & ({short=s} | {title=s}))>b ->
        let t = if short then s else t in
        let sects = 
         if sections then
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          (transform b with <section title=t>_ -> [<br>[] '-' !t])
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         else [] in
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        [ <li>[ <a href=('#',l)>t !sects ]] in
      ul toc
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   | <site-toc>[] ->
        [ <ul>[ (display_sitemap sitemap) ] ]
   | <local-links href=s>[] ->
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        ul (map (split_comma s) with x -> <li>[ (local_link(sitemap,x,"")) ])
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   | <two-columns>[ <left>x <right>y ] ->
	[ <table width="100%">[ 
            <tr>[ 
              <td valign="top">(content x) 
              <td valign="top">(content y) ] ] ]
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   | <note title=t>c ->  [ <div class="note">[ <b>[!t ':  '] !(content c) ]]
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   | <note>c ->  [ <div class="note">[ <b>"Note:  " !(content c) ]]
   | <footnotes>[] -> 
       (match !footnotes with 
        | [] -> [] 
        | n -> footnotes := []; [ <br>[] (meta n) ] )
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   | <xhtml>i -> i
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   | <demo>s -> demo_no := !demo_no + 1; demo !demo_no s
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   | t -> text [ t ]
 in
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(* Preparing left panel *)
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 let navig = transform items with <left>c -> [ c ] in
 let left = match navig with [] -> [ [<boxes-toc>[]] ] | n -> n in
 let left = 
   <td valign="top" align="left">[
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     <table cellpadding="0" cellspacing="15" 
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            width="200"
            style="font-size:80%; border: 1px dashed black;
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                   background: #ffcd72">	(* altbg 9aa8ba *)
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     (map left with x -> <tr>[ <td>[ (small_box (content x)) ] ]) ] in
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 let dpath : H:Inlines = transform path with 
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  | { url = f; title = t } -> [ <a href=f>t ': '] 
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 in
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 let npath = path @ [ { url = (url_of_page page); title = title } ] in
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 let subpages = transform items with p & Page -> [ p ] in
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 let (next,last) = gen_page_seq (site,page, subpages, next, npath, sitemap) in
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 let next = match next with [] -> [] 
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   | <page>[ <title>t; _ ] & p -> 
      [ <a href=(url_of_page p)>[ 
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          <img width="16" height="16" class="icon" alt="Next page:"
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               src="img/right.gif">[]
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          ' ' !t
        ] ] in
 let prev = match prev with [] -> [] 
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   | <page>[ <title>t; _ ] & p -> 
      [ <a href=(url_of_page p)>[ 
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          <img width="16" height="16" class="icon"
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               alt="Previous page:" src="img/left.gif">[]
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          ' ' !t
        ] ] in
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 let navig = 
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   if prev = [] then [] else
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   [ (small_box [
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     <p>[ !dpath !title ]
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     <p>[ !prev ' ' !next ] ]) ] in

(* Preparing main panel *)
 let main = transform items with
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   | <box title=t link=l>c -> [ (box_title (content c, l, t)) ]
   | <box>c -> [ (box (content c)) ]
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   | <footnotes>[] -> 
       (match !footnotes with 
        | [] -> [] 
        | n -> footnotes := []; [ (meta n) ] )
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   | <meta>c -> [ (meta (content c)) ]
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 in
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 let notes = match !footnotes with
   | [] -> []
   | n -> [ (meta n) ] in
 let main = match (navig @ main @ notes @ navig) with
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   | [] -> raise "Empty page !"
   | x -> x in

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 let right : H:Xtd =
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  <td valign="top" align="left" style="width:100%">[
   <table width="100%">[
    <tr>[ <td valign="top" align="left"
              style="border: 2px solid black; background: #ffffff;
text-align:center; color: #aa0000; font: bold 200% helvetica" >
          (text banner)
        ]
 
    <tr>[
      <td valign="top" align="left"
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          style="border: 1px solid black; background: #fccead">[ (* altbg c8ccd1 *)
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       <table width="100%" cellpadding="0" cellspacing="17">
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         (map main with x -> <tr>[ <td>[x] ])
      ] ]
  ] ] in

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 let html : H:Xhtml =
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 <html>[
  <head>[ 
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   <title>[ !site ': ' !title ]
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   <meta content="text/html; charset=iso-8859-1" http-equiv="Content-Type">[]
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   <style type="text/css">style
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  ]
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  <body style="margin: 0; padding : 0; background: #fcb333">[  (* altbg  4e6e99 *)
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   <table cellspacing="10" cellpadding="0" width="100%" border="0">[
    <tr>[ left right ]
   ]
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  ]
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 ]
 in
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 let txt : Latin1 = 
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   [ '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"'
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     '  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">'
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     !(print_xml html) ] in
 let fn = "www/" @ name @ ".html" in
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 dump_to_file fn txt;
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 last
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let gen_page_seq 
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 (site : String,
  prev : PageO, pages : [Page*], next : PageO, 
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  path : Path, sitemap : Tree) : (PageO, PageO) =
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 match pages with
 | [ p1 p2 ; _ ] & [ _; rest ] -> 
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     let last = gen_page (site,prev,p1,p2, path, sitemap) in
     let (_,last)  = gen_page_seq (site,last, rest, next, path, sitemap) in 
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     (p1,last)
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 | [ p ] ->
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     let last = gen_page (site,prev,p,next, path, sitemap) in (p,last)
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 | [] -> (next,prev)
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;;
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let input_xml = load_include input;;

match input_xml with
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 | [ <site>[ <title>(site & String) (p & Page) ] ] -> 
   let _ = gen_page (site,[],p,[], [], compute_sitemap p) in []
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 | _ -> 
   let _ = 
     try (input_xml :? [ Site ])
     with (err & Latin1) -> print ['Invalid input document\n' !err '\n']
   in []