source: code/trunk/cli/html.ml@ 42

Last change on this file since 42 was 42, checked in by fox, 2 years ago

Preliminary support for cross-domain references

File size: 8.0 KB
RevLine 
[3]1type templates_t = { header: string option; footer: string option }
[20]2type t = { templates : templates_t; style : string }
[2]3
[3]4let ext = ".htm"
5let empty_templates = { header = None; footer = None }
[20]6let default_opts = { templates = empty_templates; style = "" }
[3]7
8let init kv =
9 let open Logarion in
[18]10 let to_string key kv = match Store.KV.find key kv with
[3]11 | fname -> Some (File_store.to_string fname)
12 | exception Not_found -> None in
[18]13 let header = to_string "HTM-header" kv in
14 let footer = to_string "HTM-footer" kv in
[20]15 let style = match to_string "HTM-style" kv with
16 | Some s -> Printf.sprintf "<style>%s</style>" s | None -> "" in
17 { templates = { header; footer}; style }
[3]18
[19]19let wrap conv htm text_title body =
[20]20 let site_title = try Logarion.Store.KV.find "Title" conv.Conversion.kv with Not_found -> "" in
[3]21 let replace x = let open Str in
[20]22 global_replace (regexp "{{archive-title}}") site_title x
[3]23 |> global_replace (regexp "{{text-title}}") text_title
24 in
[20]25 let feed = try Logarion.Store.KV.find "HTM-feed" conv.Conversion.kv
26 with Not_found -> if Sys.file_exists (Filename.concat conv.Conversion.dir "feed.atom")
27 then "feed.atom" else "" in
[39]28 let header = match htm.templates.header with
[20]29 | Some x -> replace x
[21]30 | None -> Printf.(sprintf "<header><a href='.'>%s</a>%s</header>" site_title
[20]31 (if feed <> "" then sprintf "<nav><a href='%s' id='feed'>feed</a></nav>" feed else ""))
[3]32 in
[18]33 let footer = match htm.templates.footer with None -> "" | Some x -> replace x in
[20]34 Printf.sprintf "<!DOCTYPE HTML><html><head><title>%s%s</title>\n%s\n%s\
[18]35 <meta charset='utf-8'/><meta name='viewport' content='width=device-width, initial-scale=1.0'>\
36 </head><body>\n%s%s%s</body></html>"
37 text_title (if site_title <> "" then (" • " ^ site_title) else "")
[20]38 htm.style
39 (if feed <> "" then Printf.sprintf "<link rel='alternate' href='%s' type='application/atom+xml'>" feed else "")
[18]40 header body footer
[3]41
[41]42let topic_link root topic =
[18]43 let replaced_space = String.map (function ' '->'+' | x->x) in
44 "<a href='index." ^ root ^ ".htm#" ^ replaced_space topic ^ "'>"
45 ^ String.capitalize_ascii topic ^ "</a>"
[2]46
[3]47module HtmlConverter = struct
48 include Converter.Html
[41]49 let uid_uri u a = Printf.sprintf "%s<a href='%s%s'>&lt;%s&gt;</a>" a u ext u
[38]50 let angled_uri u a =
51 if try String.sub u 0 10 = "urn:txtid:" with Invalid_argument _ -> false
52 then angled_uri (String.(sub u 10 (length u - 10)) ^ ext) a else angled_uri u a
[3]53end
54
55let page htm conversion text =
[18]56 let open Logarion in
57 let open Text in
58 let module T = Parsers.Plain_text.Make (HtmlConverter) in
59 let sep_append ?(sep=", ") a x = match a,x with "",_ -> x | _, "" -> a | _ -> a ^ sep ^ x in
60 let opt_kv key value = if String.length value > 0
61 then "<dt>" ^ key ^ "<dd>" ^ value else "" in
62(* let author acc auth = sep_append acc Person.(auth.name ^ " ") in*)
[24]63 let authors = Person.Set.to_string text.authors in
[18]64 let header =
[19]65 let time x = Printf.sprintf {|<time datetime="%s">%s</time>|}
66 (Date.rfc_string x) (Date.pretty_date x) in
[18]67 let topic_links x =
68 let to_linked t a =
69 let ts = Topic_set.of_string t in
70 sep_append a (List.fold_left (fun a t -> sep_append ~sep:" > " a (topic_link (List.hd ts) t)) "" ts) in
71 String_set.fold to_linked x "" in
[38]72 let ref_links x =
[39]73 let link l = HtmlConverter.uid_uri l "" in
[38]74 String_set.fold (fun r a -> sep_append a (link r)) x ""
75 in
[41]76 Printf.eprintf "%s %d\n" text.id (Conversion.Id_map.cardinal conversion.Conversion.replies);
[18]77 "<article><header><dl>"
78 ^ opt_kv "Title:" text.title
79 ^ opt_kv "Authors:" authors
[24]80 ^ opt_kv "Date:" (time (Date.listing text.date))
81 ^ opt_kv "Series:" (str_set "series" text)
82 ^ opt_kv "Topics:" (topic_links (set "topics" text))
83 ^ opt_kv "Id:" text.id
[39]84 ^ opt_kv "Refers:" (ref_links (set "references" text))
[41]85 ^ opt_kv "In reply to:" (ref_links (set "in-reply-to" text))
[39]86 ^ opt_kv "Referred by:" (try
87 ref_links (Conversion.Id_map.find text.id conversion.Conversion.references)
88 with Not_found -> "")
[41]89 ^ opt_kv "Replies:" (try
90 ref_links (Conversion.Id_map.find text.id conversion.Conversion.replies)
[42]91 with Not_found -> "")
[18]92 ^ {|</dl></header><pre style="white-space:pre-wrap">|} in
93 wrap conversion htm text.title ((T.of_string text.body header) ^ "</pre></article>")
[2]94
95let to_dated_links ?(limit) meta_list =
[18]96 let meta_list = match limit with
97 | None -> meta_list
98 | Some limit->
99 let rec reduced acc i = function
100 | [] -> acc
101 | h::t -> if i < limit then reduced (h::acc) (i+1) t else acc in
102 List.rev @@ reduced [] 0 meta_list
103 in
104 List.fold_left
105 (fun a m -> Printf.sprintf "%s<li> %s <a href=\"%s.htm\">%s</a>" a
106 Logarion.(Date.(pretty_date (listing m.Text.date)))
107 (Logarion.Text.short_id m) m.Logarion.Text.title)
108 "" meta_list
[2]109
[3]110let date_index ?(limit) conv htm meta_list =
[18]111 match limit with
112 | Some limit -> wrap conv htm "Index" (to_dated_links ~limit meta_list)
113 | None -> wrap conv htm "Index" (to_dated_links meta_list)
[2]114
115let fold_topic_roots topic_roots =
[18]116 let list_item root t = "<li>" ^ topic_link root t in
117 "<nav><h2>Main topics</h2>"
118 ^ List.fold_left (fun a x -> a ^ list_item x x) "<ul>" (List.rev topic_roots)
119 ^ "</ul></nav>"
[2]120
121let fold_topics topic_map topic_roots metas =
[18]122 let open Logarion in
123 let rec unordered_list root topic =
124 List.fold_left (fun a x -> a ^ list_item root x) "<ul>" topic
125 ^ "</ul>"
126 and sub_items root topic = match Topic_set.Map.find_opt topic topic_map with
127 | None -> ""
128 | Some (_, subtopics) -> unordered_list root (String_set.elements subtopics)
129 and list_item root t =
130 let item =
131 if List.exists (fun x -> String_set.mem t (String_set.map Topic_set.topic (Text.set "topics" x))) metas
132 then topic_link root t else String.capitalize_ascii t
133 in
134 "<li>" ^ item ^ sub_items root t
135 in
136 "<nav><h2>Topics</h2>"
137 ^ List.fold_left (fun a x -> a ^ list_item x x) "<ul>" (List.rev topic_roots)
138 ^ "</ul></nav>"
[2]139
140let text_item path meta =
[18]141 let open Logarion in
142 "<time>" ^ Date.(pretty_date (listing meta.Text.date))
143 ^ {|</time> <a href="|} ^ path ^ Text.short_id meta ^ {|.htm">|} ^ meta.Text.title
144 ^ "</a><br>"
[2]145
146let listing_index topic_map topic_roots path metas =
[18]147 let rec item_group topics =
148 List.fold_left (fun acc topic -> acc ^ sub_groups topic ^ items topic) "" topics
149 and sub_groups topic = match Logarion.Topic_set.Map.find_opt topic topic_map with
150 | None -> ""
151 | Some (_, subtopics) -> item_group (Logarion.String_set.elements subtopics)
152 and items topic =
153 let items =
154 let open Logarion in
155 List.fold_left
156 (fun a e ->
157 if String_set.mem topic (String_set.map (Logarion.Topic_set.topic) (Text.set "Topics" e))
158 then text_item path e ^ a else a) "" metas in
159 match items with
160 | "" -> ""
161 | x -> {|<h2 id="|} ^ topic ^ {|">|} ^ String.capitalize_ascii topic ^ "</h2>" ^ x
162 in
163 "<nav><h1>Texts</h1>" ^ item_group topic_roots ^ "</nav>"
[2]164
[3]165let topic_main_index conv htm topic_roots metas =
[18]166 wrap conv htm "Topics"
167 (fold_topic_roots topic_roots
168 ^ "<nav><h1>Latest</h1><ul>" ^ to_dated_links ~limit:8 metas
169 ^ {|</ul><a href="index.date.htm">More by date</a>|}
[20]170 ^ let peers = try Logarion.Store.KV.find "Peers" conv.kv with Not_found -> "" in
[18]171 (if peers = "" then "" else
172 List.fold_left (fun a s -> Printf.sprintf {|%s<li><a href="%s">%s</a>|} a s s) "<h1>Peers</h1><ul>"
173 (Str.split (Str.regexp ";\n") (Logarion.Store.KV.find "Peers" conv.kv))
174 ^ "</ul>"))
[2]175
[3]176let topic_sub_index conv htm topic_map topic_root metas =
[18]177 wrap conv htm topic_root
178 (fold_topics topic_map [topic_root] metas
179(* ^ {|<a href=".atom" id="feed">|}^ String.capitalize_ascii topic_root ^{| feed </a>|}*)
180 ^ listing_index topic_map [topic_root] "" metas)
[3]181
182let indices htm c =
183 let file name = Logarion.File_store.file (Filename.concat c.Conversion.dir name) in
[19]184 let index_name = try Logarion.Store.KV.find "HTM-index" c.Conversion.kv with Not_found -> "index.html" in
185 if index_name <> "" then file index_name (topic_main_index c htm c.topic_roots c.texts);
[3]186 file "index.date.htm" (date_index c htm c.texts);
187 List.iter
188 (fun root -> file ("index." ^ root ^ ".htm") (topic_sub_index c htm c.topics root c.texts))
[19]189 c.topic_roots
[3]190
[19]191let converter kv =
192 let htm = init kv in
193 Conversion.{ ext; page = Some (page htm); indices = Some (indices htm) }
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