58 lines
2.3 KiB
OCaml
58 lines
2.3 KiB
OCaml
let esc = Converter.Html.esc
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let element tag content = "<" ^ tag ^ ">" ^ content ^ "</" ^ tag ^ ">"
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let opt_element tag_name content =
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if content <> ""
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then element tag_name content
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else ""
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module P = Parsers.Plain_text.Make (Converter.Html)
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let id txt = "<id>urn:uuid:" ^ Logarion.(txt.Text.id) ^ "</id>"
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let title text = "<title>" ^ esc text.Logarion.Text.title ^ "</title>"
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let authors text =
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let u acc addr = acc ^ element "uri" addr in
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let open Logarion in
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let fn txt a =
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a ^ "<author>" ^ (opt_element "name" @@ esc txt.Person.name)
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^ (List.fold_left u "" txt.Person.addresses)
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^ "</author>" in
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Person.Set.fold fn text.Text.authors ""
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let updated txt = let open Logarion in
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"<updated>"^ Date.(txt.Text.date |> listing |> rfc_string) ^"</updated>"
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let htm_entry base_url text =
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let open Logarion in
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let u = Text.short_id text in
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"<entry><link rel=\"alternate\" href=\"" ^ base_url ^ "/" ^ u ^ ".htm\" />"
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^ title text ^ id text ^ updated text ^ authors text
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^ (opt_element "summary" @@ esc @@ Text.str "abstract" text)
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^ String_set.fold (fun elt a -> a ^ "<category term=\"" ^ esc elt ^ "\"/>") (Text.set "topics" text) ""
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^ "<content type=\"xhtml\"><div xmlns=\"http://www.w3.org/1999/xhtml\">"
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^ P.of_string text.body ""
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^ "</div></content></entry>\n"
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let gmi_entry base_url text =
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let open Logarion in
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let u = Text.short_id text in
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"<entry><link rel=\"alternate\" href=\"" ^ base_url ^ "/" ^ u ^ ".gmi\" />"
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^ title text ^ id text ^ updated text ^ authors text
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^ (opt_element "summary" @@ esc @@ Text.str "abstract" text)
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^ String_set.fold (fun elt a -> a ^ "<category term=\"" ^ elt ^ "\"/>") (Text.set "topics" text) ""
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^ "</entry>\n"
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let feed title archive_id base_url alternate_type texts =
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let entry, self = match alternate_type with
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| "text/gemini" -> gmi_entry, base_url^"/gmi.atom"
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| "text/html" | _ -> htm_entry, base_url^"/feed.atom" in
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{|<?xml version="1.0" encoding="utf-8"?><feed xmlns="http://www.w3.org/2005/Atom" xml:base="|} ^ base_url ^ {|"><title>|}
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^ title ^ {|</title><link rel="alternate" type="|} ^ alternate_type ^ {|" href="|}
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^ base_url ^ {|/" /><link rel="self" type="application/atom+xml" href="|}
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^ self ^ {|" /><id>urn:uuid:|} ^ archive_id ^ "</id><updated>"
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^ Logarion.Date.now () ^ "</updated>\n"
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^ List.fold_left (fun acc t -> acc ^ entry base_url t) "" texts
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^ "</feed>"
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