217 lines
9.6 KiB
Haskell
217 lines
9.6 KiB
Haskell
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module Registry.Utils where
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import Registry.Grammar
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import Registry.Types
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import qualified Data.List as List
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import Data.Char (toUpper)
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toUpperS :: String -> String
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toUpperS = map toUpper
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onlyDate (Date d) = True
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onlyDate _ = False
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onlyRecord (Date d) = False
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onlyRecord _ = True
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onlyGF (GF r) = True
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onlyGF _ = False
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onlyLang (Lang r) = True
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onlyLang _ = False
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onlyExtlang (Extl r) = True
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onlyExtlang _ = False
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onlyScript (Scr r) = True
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onlyScript _ = False
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onlyRegion (Reg r) = True
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onlyRegion _ = False
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onlyVariant (Var r) = True
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onlyVariant _ = False
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onlyRedundant (Red r) = True
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onlyRedundant _ = False
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onlyExtension (Red r) = True
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onlyExtension _ = False
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languageFrom (Lang r) = r
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languageFrom x = error "Not a language"
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extlangFrom (Extl r) = r
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extlangFrom x = error "Not an extlang (extended language)"
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scriptFrom (Scr r) = r
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scriptFrom _ = error "Not a script"
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regionFrom (Reg r) = r
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regionFrom _ = error "Not a region"
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variantFrom (Var v) = v
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variantFrom _ = error "Not a variant"
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redundantFrom (Red r) = r
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redundantFrom _ = error "Not a redundant"
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gfFrom (GF r) = r
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gfFrom _ = error "Not a grandfathered"
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onlyThisType :: String -> Record -> Bool
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onlyThisType "language" = onlyLang
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onlyThisType "extlang" = onlyExtlang
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onlyThisType "grandfathered" = onlyGF
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onlyThisType "script" = onlyScript
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onlyThisType "region" = onlyRegion
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onlyThisType "variant" = onlyVariant
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onlyThisType "redundant" = onlyRedundant
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onlyThisType "extension" = onlyExtension
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onlyThisType t = error ("Unknown type in the registry: " ++ t)
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onlyThisValue :: String -> String -> Record -> Bool
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-- Remember that language tags are case-insensitive
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onlyThisValue "language" v = (\r -> toUpperS (lang'subtag r) == toUpperS (v)).languageFrom
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onlyThisValue "extlang" v = (\r -> toUpperS (extlang'subtag r) == toUpperS (v)).extlangFrom
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onlyThisValue "grandfathered" v = (\r -> toUpperS (gf'tag r) == toUpperS (v)).gfFrom
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onlyThisValue "script" v = (\r -> toUpperS (script'subtag r) == toUpperS (v)).scriptFrom
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onlyThisValue "region" v = (\r -> toUpperS (region'subtag r) == toUpperS (v)).regionFrom
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onlyThisValue "variant" v = (\r -> toUpperS (variant'subtag r) == toUpperS (v)).variantFrom
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onlyThisValue "redundant" v = (\r -> toUpperS (redundant'tag r) == toUpperS (v)).redundantFrom
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-- TODO: extensions
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onlyThisValue t _ = error ("Unknown type of this value in the registry: " ++ t)
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toSubtag (Lang l) = (lang'subtag l)
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toSubtag (Scr s) = (script'subtag s)
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toSubtag (GF t) = (gf'tag t)
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toSubtag (Reg r) = (region'subtag r)
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toSubtag (Var v) = (variant'subtag v)
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toSubtag (Red r) = (redundant'tag r)
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maybeToString Nothing = ""
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maybeToString (Just s) = s
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dateToString d = d
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descrToString a = concat (List.intersperse " / " a)
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prefixesToString a = concat (List.intersperse " / " a)
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toString (Lang l) = (lang'subtag l) ++ "\t" ++ dateToString (lang'added l) ++ "\t" ++
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descrToString (lang'descr l) ++ "\t" ++
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(maybeToString (lang'script l)) ++ "\n"
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toString (GF t) = (gf'tag t) ++ "\n"
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toString (Scr s) = (script'subtag s) ++ "\t" ++ dateToString (script'added s) ++ "\t" ++
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descrToString (script'descr s) ++ "\n"
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toString (Reg r) = (region'subtag r) ++ "\t" ++ dateToString (region'added r) ++ "\t" ++
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descrToString (region'descr r) ++ "\n"
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toString (Var v) = (variant'subtag v) ++ "\t" ++ dateToString (variant'added v) ++ "\t" ++
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descrToString (variant'descr v) ++ "\t" ++
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prefixesToString (variant'prefix v) ++ "\n"
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toString (Red r) = (redundant'tag r) ++ "\t" ++ dateToString (redundant'added r) ++ "\t" ++
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descrToString (redundant'descr r) ++ "\n"
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-- TODO: escape non-XML chars
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dateToXML d = "<date>" ++ d ++ "</date>"
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addedToXML d = "<added>" ++ d ++ "</added>"
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deprecatedToXML Nothing = ""
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deprecatedToXML (Just d) = "<deprecated>" ++ d ++ "</deprecated>"
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sscriptToXML Nothing = ""
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sscriptToXML (Just s) = "<suppress-script>" ++ s ++ "</suppress-script>"
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prefToXML Nothing = ""
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prefToXML (Just s) = "<preferred-value>" ++ s ++ "</preferred-value>"
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macrolToXML Nothing = ""
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macrolToXML (Just l) = "<macrolanguage>" ++ l ++ "</macrolanguage>"
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scopeToXML Nothing = ""
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scopeToXML (Just s) = "<scope>" ++ s ++ "</scope>"
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onedescrToXML s = "<description>" ++ s ++ "</description>"
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descrToXML a = concat (map onedescrToXML a)
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oneprefixToXML s = "<prefix>" ++ s ++ "</prefix>"
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prefixesToXML a = concat (map oneprefixToXML a)
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toXML (Date d) = dateToXML d
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toXML (Lang l) = "<language><subtag>" ++ (lang'subtag l) ++ "</subtag>" ++
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addedToXML (lang'added l) ++
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descrToXML (lang'descr l) ++
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(sscriptToXML (lang'script l)) ++
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deprecatedToXML (lang'deprecated l) ++
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prefToXML (lang'preferredValue l) ++
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macrolToXML (lang'macroLanguage l) ++
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scopeToXML (lang'scope l) ++
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"</language>\n"
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toXML (Extl l) = "<extlang><subtag>" ++ (extlang'subtag l) ++ "</subtag>" ++
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addedToXML (extlang'added l) ++
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descrToXML (extlang'descr l) ++
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(sscriptToXML (extlang'script l)) ++
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macrolToXML (extlang'macroLanguage l) ++
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scopeToXML (extlang'scope l) ++
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"</extlang>\n"
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toXML (GF t) = "<grandfathered><tag>" ++ (gf'tag t) ++ "</tag>" ++
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addedToXML (gf'added t) ++
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descrToXML (gf'descr t) ++ "</grandfathered>\n"
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toXML (Scr s) = "<script><subtag>" ++ (script'subtag s) ++ "</subtag>" ++
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addedToXML (script'added s) ++
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descrToXML (script'descr s) ++ "</script>\n"
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toXML (Reg r) = "<region><subtag>" ++ (region'subtag r) ++ "</subtag>" ++
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addedToXML (region'added r) ++
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descrToXML (region'descr r) ++ "</region>\n"
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toXML (Var v) = "<variant><subtag>" ++ (variant'subtag v) ++ "</subtag>" ++
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addedToXML (variant'added v) ++
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descrToXML (variant'descr v) ++
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prefixesToXML (variant'prefix v) ++ "</variant>\n"
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toXML (Red r) = "<redundant><tag>" ++ (redundant'tag r) ++ "</tag>" ++
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addedToXML (redundant'added r) ++
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descrToXML (redundant'descr r) ++ "</redundant>\n"
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toXML (Ext e) = error "No support for extensions"
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-- TODO: escape non-HTML chars
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html_head s = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">\n<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en\" lang=\"en\">\n<head><link rel=\"stylesheet\" type=\"text/css\" href=\"/ltru.css\" /><title>" ++ s ++ "</title></head><body><h1>" ++
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s ++ "</h1>"
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html_tail = "<hr/><p><a href=\"/\">langtag.net Home</a></p></body></html>"
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linkLanguage langcode =
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if (length langcode) == 3 then
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"<a href=\"http://www.sil.org/iso639-3/documentation.asp?id=" ++
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langcode ++ "\">See the SIL entry</a> (if present)."
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else if (length langcode) == 2 then
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"<a href=\"http://www.loc.gov/standards/iso639-2/php/langcodes_name.php?iso_639_1=" ++
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langcode ++ "\">See the LOC entry</a> (if present)."
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else
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""
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dateToHTML d = "Date: " ++ d
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addedToHTML d = "Added on " ++ d
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sscriptToHTML Nothing = ""
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sscriptToHTML (Just s) = " Suppress the script: <code><a href=\"../script/" ++ s ++
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".html\">" ++ s ++ "</a></code>"
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onedescrToHTML s = s
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descrToHTML a = concat (List.intersperse " / " (map onedescrToHTML a))
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-- TODO: a prefix is not always a simple language, it can be composed of several subtags
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oneprefixToHTML s = " Possible prefix: <code><a href=\"../language/" ++ s ++ ".html\">" ++ s ++ "</a></code>"
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prefixesToHTML a = concat (map oneprefixToHTML a)
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toHTML (Date d) = "<p>Date: " ++ dateToHTML d ++ "</p>"
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toHTML (Lang l) = (html_head ((lang'descr l) !! 0)) ++ "<p><code>" ++
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(lang'subtag l) ++ "</code>. " ++
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addedToHTML (lang'added l) ++ ". Description: " ++
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descrToHTML (lang'descr l) ++ ". " ++
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linkLanguage (lang'subtag l) ++
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(sscriptToHTML (lang'script l)) ++ "</p>" ++ html_tail ++ "\n"
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toHTML (GF t) = "<p>" ++ (gf'tag t) ++
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addedToHTML (gf'added t) ++
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descrToHTML (gf'descr t) ++ "</p>\n"
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toHTML (Scr s) = (html_head ((script'descr s) !! 0)) ++ "<p><code>" ++
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(script'subtag s) ++ "</code>." ++
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addedToHTML (script'added s) ++ ". Description: " ++
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descrToHTML (script'descr s) ++ "</p>" ++ html_tail ++ "\n"
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toHTML (Reg r) = (html_head ((region'descr r) !! 0)) ++ "<p>" ++
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(region'subtag r) ++ " " ++
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addedToHTML (region'added r) ++
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". Description: " ++
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descrToHTML (region'descr r) ++ "</p>" ++
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html_tail ++ "\n"
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toHTML (Var v) = (html_head ((variant'descr v) !! 0)) ++ "<p><code>" ++
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(variant'subtag v) ++ "</code>. " ++
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addedToHTML (variant'added v) ++ ". Description: " ++
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descrToHTML (variant'descr v) ++ ". " ++
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prefixesToHTML (variant'prefix v) ++ "</p>" ++ html_tail ++ "\n"
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toHTML (Red r) = (html_head ((redundant'descr r) !! 0)) ++
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"<p>" ++ (redundant'tag r) ++
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addedToHTML (redundant'added r) ++
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descrToHTML (redundant'descr r) ++ "</p>" ++
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html_tail ++ "\n"
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