packages feed

pdfname-0.2: src/Substitutions.hs

-- | Substitutions.

module Substitutions
  ( authorSubst
  , titleSubst
  , replace
  , replaceHTMLEntities
  , replaceHTMLSymbols
  , unicodeSubst
  , weirdSubst
  ) where

import Data.Text ( Text )
import qualified Data.Text as T

------------------------------------------------------------------------------
-- Replacements

type HTMLEntityName = Text
type HTMLEntityDec  = Text
type HTMLEntityHex  = Text
type HTMLSymbolDec  = Text
type HTMLSymbolHex  = Text

replaceHTMLEntities ∷ Text → Text
replaceHTMLEntities = replace nameSubst . replace decSubst . replace hexSubst
  where
   nameSubst ∷ [(HTMLEntityName, Text)]
   nameSubst = map (\ (a, _, _, d) → (a, d)) htmlEntitySubst

   decSubst ∷ [(HTMLEntityDec, Text)]
   decSubst = map (\ (_, b, _, d) → (b, d)) htmlEntitySubst

   hexSubst ∷ [(HTMLEntityHex, Text)]
   hexSubst = map (\ (_, _, c, d) → (c, d)) htmlEntitySubst

replaceHTMLSymbols ∷ Text → Text
replaceHTMLSymbols = replace decSubst . replace hexSubst
  where
   decSubst ∷ [(HTMLSymbolDec, Text)]
   decSubst = map (\ (a, _, c) → (a, c)) htmlSymbolSubst

   hexSubst ∷ [(HTMLSymbolHex, Text)]
   hexSubst = map (\ (_, b, c) → (b, c)) htmlSymbolSubst

replace ∷ [(Text,Text)] → Text → Text
replace xs ys = foldl (flip (uncurry T.replace)) ys xs

------------------------------------------------------------------------------
-- HTML entities and symbols substitutions

-- Used by example for the Journal of Functional Programmning.

-- | Substitutions of HTML entities.
htmlEntitySubst ∷ [(HTMLEntityName, HTMLEntityDec, HTMLEntityHex, Text)]
htmlEntitySubst =
  [ ("Â",   "Â",  "Â", "A")              -- LATIN CAPITAL LETTER A WITH CIRCUMFLEX
  , ("Ä",    "Ä",  "Ä", "A")              -- LATIN CAPITAL LETTER A WITH DIAERESIS
  , ("Ç",  "Ç",  "Ç", "C")              -- LATIN CAPITAL LETTER C WITH CEDILLA
  , ("Ë",    "Ë",  "Ë", "E")              -- LATIN CAPITAL LETTER E WITH DIAERESIS
  , ("Ï",    "Ï",  "Ï", "I")              -- LATIN CAPITAL LETTER I WITH DIAERESIS
  , ("Ö",    "Ö",  "Ö", "O")              -- LATIN CAPITAL LETTER U WITH DIAERESIS
  , ("Ø",  "Ø",  "Ø", "O")              -- LATIN CAPITAL LETTER O WITH STROKE
  , ("Ü",    "Ü",  "Ü", "U")              -- LATIN CAPITAL LETTER U WITH DIAERESIS
  , ("á",  "á",  "á", "a")              -- LATIN SMALL LETTER A WITH ACUTE
  , ("â",   "â",  "â", "a")              -- LATIN SMALL LETTER A WITH CIRCUMFLEX
  , ("ä",    "ä",  "ä", "a")              -- LATIN SMALL LETTER A WITH DIAERESIS
  , ("ç",  "ç",  "ç", "c")              -- LATIN SMALL LETTER C WITH CEDILLA
  , ("é",  "é",  "é", "e")              -- LATIN SMALL LETTER E WITH ACUTE
  , ("ë",    "ë",  "ë", "e")              -- LATIN SMALL LETTER E WITH DIAERESIS
  , ("í",  "í",  "í", "i")              -- LATIN SMALL LETTER I WITH ACUTE
  , ("ï",    "ï",  "ï", "i")              -- LATIN SMALL LETTER I WITH DIAERESIS
  , ("ó",  "ó",  "ó", "o")              -- LATIN SMALL LETTER O WITH ACUTE
  , ("ö",    "ö",  "ö", "o")              -- LATIN SMALL LETTER O WITH DIAERESIS
  , ("ø",  "ø",  "ø", "o")              -- LATIN SMALL LETTER O WITH STROKE
  , ("ú",  "ú",  "ú", "u")              -- LATIN SMALL LETTER U WITH ACUTE
  , ("ü",    "ü",  "ü", "u")              -- LATIN SMALL LETTER U WITH DIAERESIS
  , ("Ī",   "Ī",  "Ī", "I")              -- LATIN CAPITAL LETTER I WITH MACRON
  , ("ī",   "ī",  "ī", "I")              -- LATIN SMALL LETTER I WITH MACRON
  , ("Ś",  "Ś",  "Ś", "S")              -- LATIN CAPITAL LETTER S WITH ACUTE
  , ("ś",  "ś",  "ś", "s")              -- LATIN SMALL LETTER S WITH ACUTE
  , ("Ş",  "Ş",  "Ş", "s")              -- LATIN CAPITAL LETTER S WITH CEDILLA
  , ("ş",  "ş",  "ş", "s")              -- LATIN SMALL LETTER S WITH CEDILLA
  , ("Š",  "Š",  "&#x0160",  "S")              -- LATIN CAPITAL LETTER S WITH CARON
  , ("š",  "š",  "&#x0161",  "s")              -- LATIN SMALL LETTER S WITH CARON
  , ("α",   "α",  "α", "alpha")          -- GREEK SMALL LETTER ALPHA
  , ("β",    "β",  "β", "beta")           -- GREEK SMALL LETTER BETA
  , ("γ",   "γ",  "γ", "gamma")          -- GREEK SMALL LETTER GAMMA
  , ("δ",   "δ",  "δ", "delta")          -- GREEK SMALL LETTER DELTA
  , ("ε", "ε",  "ε", "epsilon")        -- GREEK SMALL LETTER EPSILON
  , ("ζ",    "ζ",  "ζ", "zeta")           -- GREEK SMALL LETTER ZETA
  , ("η",     "η",  "η", "eta")            -- GREEK SMALL LETTER ETA
  , ("θ",   "θ",  "θ", "theta")          -- GREEK SMALL LETTER THETA
  , ("ι",    "ι",  "ι", "iota")           -- GREEK SMALL LETTER IOTA
  , ("κ",   "κ",  "κ", "kappa")          -- GREEK SMALL LETTER KAPPA
  , ("λ",  "λ",  "λ", "lambda")         -- GREEK SMALL LETTER LAMDA
  , ("μ",      "μ",  "μ", "mu")             -- GREEK SMALL LETTER MU
  , ("ν",      "ν",  "ν", "nu")             -- GREEK SMALL LETTER NU
  , ("ξ",      "ξ",  "ξ", "xi")             -- GREEK SMALL LETTER ZI
  , ("ο", "ο",  "ο", "omicron")        -- GREEK SMALL LETTER OMICRON
  , ("π",      "π",  "π", "pi")             -- GREEK SMALL LETTER PI
  , ("ρ",     "ρ",  "ρ", "rho")            -- GREEK SMALL LETTER RHO
  , ("ς",  "ς",  "ς", "sigma")          -- GREEK SMALL LETTER FINAL SIGMA
  , ("σ",   "σ",  "σ", "sigma")          -- GREEK SMALL LETTER SIGMA
  , ("τ",     "τ",  "τ", "tau")            -- GREEK SMALL LETTER TAU
  , ("υ", "υ",  "υ", "upsilon")        -- GREEK SMALL LETTER UPSILON
  , ("φ",     "φ",  "φ", "phi")            -- GREEK SMALL LETTER PHI
  , ("χ",     "χ",  "χ", "chi")            -- GREEK SMALL LETTER CHI
  , ("ψ",     "ψ",  "ψ", "psi")            -- GREEK SMALL LETTER PSI
  , ("ω",   "ω",  "ω", "omega")          -- GREEK SMALL LETTER OMEGA
  , ("–",   "–", "–", "-")              -- EN DASH
  , ("—",   "—", "—", ".")              -- EM DAS
  , ("‘",   "‘", "‘", "")               -- LEFT SINGLE QUOTATION MARK
  , ("’",   "’", "’", "")               -- RIGHT SINGLE QUOTATION MARK
  , ("‚",   "‚", "‚", "")               -- SINGLE LOW-9 QUOTATION MAR
  , ("“",   "“", "“", "")               -- LEFT DOUBLE QUOTATION MARK
  , ("”",   "”", "”", "")               -- RIGHT DOUBLE QUOTATION MARK
  , ("„",   "„", "„", "")               -- DOUBLE LOW-9 QUOTATION MARK
  , ("†",  "†", "†", "dagger")         -- DAGGER
  , ("‡",  "‡", "‡", "dagger-dagger")  -- DOUBLE DAGGER
  , ("•",    "•", "•", "")               -- BULLET
  , ("…",  "…", "…", "")               -- HORIZONTAL ELLIPSIS
  , ("⊃",     "₃", "⊃", "")               -- SUPERSET OF
  ]

-- | Substitutions of HTML symbols.
htmlSymbolSubst ∷ [(HTMLSymbolDec, HTMLSymbolHex, Text)]
htmlSymbolSubst =
  [ ("‐", "‐", "-")  -- HYPHEN
  , ("‛", "‛", "")   -- SINGLE HIGH-REVERSED-9 QUOTATION MARK
  , ("‟", "‟", "")   -- DOUBLE HIGH-REVERSED-9 QUOTATION MARK
  , ("⌝", "⌝", "")   -- TOP RIGHT CORNER
  ]

------------------------------------------------------------------------------
-- Unicode substitutions

-- | Unicode substitutions.
unicodeSubst ∷ [(Text,Text)]
unicodeSubst =
  [ ("\t",          "")         -- U+0009 CHARACTER TABULATION
  , ("\n",          "")         -- U+000A LINE FEED (LF)
  , ("\f",          "")         -- U+000C FORM FEED (FF)
  , ("\r",          "")         -- U+000D CARRIAGE RETURN (CR)
  , (" ",           "-")        -- U+0020 SPACE
  , ("!",           "")         -- U+0021 EXCLAMATION MARK
  , ("\"",          "")         -- U+0022 QUOTATION MARK
  , ("#",           "")         -- U+0023 NUMBER SIGN
  , ("$",           "")         -- U+0024 DOLLAR SIGN
  , ("%",           "")         -- U+0025 PERCENT SIGN
  , ("&",           "")         -- U+0026 AMPERSAND
  , ("'",           "")         -- U+0027 APOSTROPHE
  , ("(",           "")         -- U+0028 LEFT PARENTHESIS
  , (")",           "")         -- U+0029 RIGHT PARENTHESIS
  , ("*",           "")         -- U+002A ASTERISK
  , ("+",           "")         -- U+002B PLUS SIGN
  , (",",           "")         -- U+002C COMMA
  , (".",           "")         -- U+002D FULL STOP
  , ("/",           "")         -- U+002F SOLIDUS
  , (":",           "")         -- U+003A COLON
  , (";",           "")         -- U+003B SEMICOLON
  , ("<",           "")         -- U+003C LESS-THAN SIGN
  , ("=",           "")         -- U+003D EQUALS SIGN
  , (">",           "")         -- U+003E GREATER-THAN SIGN
  , ("?",           "")         -- U+003F QUESTION MARK
  , ("@",           "")         -- U+0040 COMMERCIAL AT
  , ("[",           "")         -- U+005B LEFT SQUARE BRACKET
  , ("\\",          "")         -- U+005C REVERSE SOLIDUS
  , ("]",           "")         -- U+005D RIGHT SQUARE BRACKET
  , ("^",           "")         -- U+005E CIRCUMFLEX ACCENT
  , ("_",           "-")        -- U+005F LOW LINE
  , ("`",           "")         -- U+0060 GRAVE ACCENT
  , ("{",           "")         -- U+007B LEFT CURLY BRACKET
  , ("|",           "")         -- U+007C VERTICAL LINE
  , ("}",           "")         -- U+007B RIGHT CURLY BRACKET
  , ("~",           "")         -- U+007E TILDE
  , ("¡",           "")         -- U+00A1 INVERTED EXCLAMATION MARK
  , ("¬",           "")         -- U+00AC NOT SIGN
  , ("²",           "2")        -- U+00B2 SUPERSCRIPT TWO
  , ("³",           "3")        -- U+00B3 SUPERSCRIPT THREE
  , ("¹",           "1")        -- U+00B9 SUPERSCRIPT ONE
  , ("À",           "A")        -- U+00C0 LATIN CAPITAL LETTER A WITH GRAVE
  , ("Á",           "A")        -- U+00C1 LATIN CAPITAL LETTER A WITH ACUTE
  , ("Â",           "A")        -- U+00C2 LATIN CAPITAL LETTER A WITH CIRCUMFLEX
  , ("Ã",           "A")        -- U+00C3 LATIN CAPITAL LETTER A WITH TILDE
  , ("Ä",           "A")        -- U+00C4 LATIN CAPITAL LETTER A WITH DIAERESIS
  , ("Å",           "A")        -- U+00C5 LATIN CAPITAL LETTER A WITH RING ABOVE
  , ("Æ",           "AE")       -- U+00C6 LATIN CAPITAL LETTER AE
  , ("Ç",           "C")        -- U+00C7 LATIN CAPITAL LETTER C WITH CEDILLA
  , ("È",           "E")        -- U+00C8 LATIN CAPITAL LETTER E WITH GRAVE
  , ("É",           "E")        -- U+00C9 LATIN CAPITAL LETTER E WITH ACUTE
  , ("Ê",           "E")        -- U+00CA LATIN CAPITAL LETTER E WITH CIRCUMFLEX
  , ("Ë",           "E")        -- U+00CB LATIN CAPITAL LETTER E WITH DIAERESIS
  , ("Í",           "I")        -- U+00CD LATIN CAPITAL LETTER I WITH ACUTE
  , ("Î",           "I")        -- U+00CE LATIN CAPITAL LETTER I WITH CIRCUMFLEX
  , ("Ï",           "I")        -- U+00CF LATIN CAPITAL LETTER I WITH DIAERESIS
  , ("Ñ",           "N")        -- U+00D1 LATIN CAPITAL LETTER N WITH TILDE
  , ("Ó",           "O")        -- U+00D3 LATIN CAPITAL LETTER O WITH ACUTE
  , ("Ô",           "O")        -- U+00D4 LATIN CAPITAL LETTER O WITH CIRCUMFLEX
  , ("Õ",           "O")        -- U+00D5 LATIN CAPITAL LETTER O WITH TILDE
  , ("Ö",           "O")        -- U+00D6 LATIN CAPITAL LETTER O WITH DIAERESIS
  , ("×",           "")         -- U+00D7 MULTIPLICATION SIGN
  , ("Ø",           "O")        -- U+00D8 LATIN CAPITAL LETTER O WITH STROKE
  , ("Ù",           "U")        -- U+00D9 LATIN CAPITAL LETTER U WITH GRAVE
  , ("Ú",           "U")        -- U+00DA LATIN CAPITAL LETTER U WITH ACUTE
  , ("Û",           "U")        -- U+00DB LATIN CAPITAL LETTER U WITH CIRCUMFLEX
  , ("Ü",           "U")        -- U+00DC LATIN CAPITAL LETTER U WITH DIAERESIS
  , ("Ý",           "Y")        -- U+00DD LATIN CAPITAL LETTER Y WITH ACUTE
  , ("ß",           "ss")       -- U+00DF LATIN SMALL LETTER SHARP S
  , ("à",           "a")        -- U+00E0 LATIN SMALL LETTER A WITH GRAVE
  , ("á",           "a")        -- U+00E1 LATIN SMALL LETTER A WITH ACUTE
  , ("â",           "a")        -- U+00E2 LATIN SMALL LETTER A CIRCUMFLEX
  , ("ã",           "a")        -- U+00E3 LATIN SMALL LETTER A WITH TILDE
  , ("ä",           "a")        -- U+00E4 LATIN SMALL LETTER A WITH DIAERESIS
  , ("å",           "a")        -- U+00E5 LATIN SMALL LETTER A WITH RING ABOVE
  , ("æ",           "ae")       -- U+00E6 LATIN SMALL LETTER AE
  , ("ç",           "c")        -- U+00E7 LATIN SMALL LETTER C WITH CEDILLA
  , ("è",           "e")        -- U+00E8 LATIN SMALL LETTER E WITH GRAVE
  , ("é",           "e")        -- U+00E9 LATIN SMALL LETTER E WITH ACUTE
  , ("ê",           "e")        -- U+00EA LATIN SMALL LETTER E WITH CIRCUMFLEX
  , ("ë",           "e")        -- U+00EB LATIN SMALL LETTER E WITH DIAERESIS
  , ("í",           "i")        -- U+00ED LATIN SMALL LETTER I WITH ACUTE
  , ("î",           "i")        -- U+00EE LATIN SMALL LETTER I WITH CIRCUMFLEX
  , ("ï",           "i")        -- U+00EF LATIN SMALL LETTER I WITH DIAERESIS
  , ("ñ",           "n")        -- U+00F1 LATIN SMALL LETTER N WITH TILDE
  , ("ò",           "o")        -- U+00F2 LATIN SMALL LETTER O WITH GRAVE
  , ("ó",           "o")        -- U+00F3 LATIN SMALL LETTER O WITH ACUTE
  , ("ô",           "o")        -- U+00F4 LATIN SMALL LETTER O WITH CIRCUMFLEX
  , ("õ",           "o")        -- U+00F5 LATIN SMALL LETTER O WITH TILDE
  , ("ö",           "o")        -- U+00F6 LATIN SMALL LETTER O WITH DIAERESIS
  , ("ø",           "o")        -- U+00F8 LATIN SMALL LETTER O WITH STROKE
  , ("ù",           "u")        -- U+00F9 LATIN SMALL LETTER U WITH GRAVE
  , ("ú",           "u")        -- U+00FA LATIN SMALL LETTER U WITH ACUTE
  , ("û",           "u")        -- U+00FB LATIN SMALL LETTER U WITH CIRCUMFLEX
  , ("ü",           "u")        -- U+00FC LATIN SMALL LETTER U WITH DIAERESIS
  , ("ý",           "y")        -- U+00FD LATIN SMALL LETTER Y WITH ACUTE
  , ("þ",           "t")        -- U+00FE LATIN SMALL LETTER THORN
  , ("ÿ",           "y")        -- U+00FF LATIN SMALL LETTER Y WITH DIAERESIS
  , ("Ā",           "A")        -- U+0100 LATIN CAPITAL LETTER A WITH MACRON
  , ("ā",           "a")        -- U+0101 LATIN SMALL LETTER A WITH MACRON
  , ("Ă",           "A")        -- U+0102 LATIN CAPITAL LETTER A WITH BREVE
  , ("ă",           "a")        -- U+0103 LATIN SMALL LETTER A WITH
  , ("Ą",           "A")        -- U+0104 LATIN CAPITAL LETTER A WITH OGONEK
  , ("ą",           "a")        -- U+0105 LATIN SMALL LETTER A WITH OGONEK
  , ("Ć",           "c")        -- U+0106 LATIN CAPITAL LETTER C WITH ACUTE
  , ("ć",           "c")        -- U+0107 LATIN SMALL LETTER C WITH ACUTE
  , ("Č",           "C")        -- U+010C LATIN CAPITAL LETTER C WITH CARON
  , ("č",           "c")        -- U+010D LATIN SMALL LETTER C WITH CARON
  , ("Ď",           "D")        -- U+010E LATIN CAPITAL LETTER D WITH CARON
  , ("ď",           "d")        -- U+010F LATIN SMALL LETTER D WITH CARON
  , ("Ē",           "E")        -- U+0112 LATIN CAPITAL LETTER E WITH MACRON
  , ("ē",           "e")        -- U+0113 LATIN SMALL LETTER E WITH MACRON
  , ("Ę",           "e")        -- U+0118 LATIN CAPITAL LETTER E WITH OGONEK
  , ("ę",           "e")        -- U+0119 LATIN SMALL LETTER E WITH OGONEK
  , ("Ě",           "E")        -- U+011A LATIN CAPITAL LETTER E WITH CARON
  , ("ě",           "e")        -- U+011B LATIN SMALL LETTER E WITH CARON
  , ("Ğ",           "G")        -- U+011E LATIN CAPITAL LETTER G WITH BREVE
  , ("ğ",           "g")        -- U+011F LATIN SMALL LETTER G WITH BREVE
  , ("Ģ",           "G")        -- U+0122 LATIN CAPITAL LETTER G WITH CEDILLA
  , ("ģ",           "g")        -- U+0123 LATIN SMALL LETTER G WITH CEDILLA
  , ("Ī",           "I")        -- U+012A LATIN CAPITAL LETTER I WITH MACRON
  , ("ī",           "I")        -- U+012B LATIN SMALL LETTER I WITH MACRON
  , ("İ",           "I")        -- U+0130 LATIN CAPITAL LETTER I WITH DOT ABOVE
  , ("Ķ",           "K")        -- U+0136 LATIN CAPITAL LETTER K WITH CEDILLA
  , ("ķ",           "k")        -- U+0137 LATIN SMALL LETTER K WITH CEDILLA
  , ("Ļ",           "L")        -- U+013B LATIN CAPITAL LETTER L WITH CEDILLA
  , ("ļ",           "l")        -- U+013C LATIN SMALL LETTER L WITH CEDILLA
  , ("Ł",           "L")        -- U+0141 LATIN CAPITAL LETTER L WITH STROKE
  , ("ł",           "l")        -- U+0142 LATIN SMALL LETTER L WITH STROKE
  , ("Ń",           "N")        -- U+0143 LATIN CAPITAL LETTER N WITH ACUTE
  , ("ń",           "n")        -- U+0144 LATIN SMALL LETTER N WITH ACUTE
  , ("Ņ",           "n")        -- U+0145 LATIN CAPITAL LETTER N WITH CEDILLA
  , ("ņ",           "n")        -- U+0146 LATIN SMALL LETTER N WITH CEDILLA
  , ("Ň",           "N")        -- U+0147 LATIN CAPITAL LETTER N WITH CARON
  , ("ň",           "n")        -- U+0148 LATIN SMALL LETTER N WITH CARON
  , ("Ő",           "O")        -- U+0150 LATIN CAPITAL LETTER O WITH DOUBLE ACUTE
  , ("ő",           "o")        -- U+0151 LATIN SMALL LETTER O WITH DOUBLE ACUTE
  , ("Œ",           "OE")       -- U+0152 LATIN CAPITAL LIGATURE OE
  , ("œ",           "oe")       -- U+0153 LATIN SMALL LIGATURE OE
  , ("Ř",           "R")        -- U+0158 LATIN CAPITAL LETTER R WITH CARON
  , ("ř",           "r")        -- U+0159 LATIN SMALL LETTER R WITH CARON
  , ("Ś",           "S")        -- U+015A LATIN CAPITAL LETTER S WITH ACUTE
  , ("ś",           "s")        -- U+015B LATIN SMALL LETTER S WITH ACUTE
  , ("Ş",           "S")        -- U+015E LATIN CAPITAL LETTER S WITH CEDILLA
  , ("ş",           "s")        -- U+015F LATIN SMALL LETTER S WITH CEDILLA
  , ("Š",           "S")        -- U+0160 LATIN CAPITAL LETTER S WITH CARON
  , ("š",           "s")        -- U+0161 LATIN SMALL LETTER S WITH CARON
  , ("Ť",           "T")        -- U+0164 LATIN CAPITAL LETTER T WITH CARON
  , ("ť",           "t")        -- U+0165 LATIN SMALL LETTER T WITH CARON
  , ("Ū",           "U")        -- U+016A LATIN CAPITAL LETTER U WITH MACRON
  , ("ū",           "u")        -- U+016B LATIN SMALL LETTER U WITH MACRON
  , ("Ů",           "U")        -- U+016E LATIN CAPITAL LETTER U WITH RING ABOVE
  , ("ů",           "u")        -- U+016F LATIN SMALL LETTER U WITH RING ABOVE
  , ("Ű",           "U")        -- U+0170 LATIN CAPITAL LETTER U WITH DOUBLE ACUTE
  , ("ű",           "u")        -- U+0171 LATIN SMALL LETTER U WITH DOUBLE ACUTE
  , ("Ÿ",           "Y")        -- U+0178 LATIN CAPITAL LETTER Y WITH DIAERESIS
  , ("Ź",           "Z")        -- U+0179 LATIN CAPITAL LETTER Z WITH ACUTE
  , ("ź",           "z")        -- U+017A LATIN SMALL LETTER Z WITH ACUTE
  , ("Ż",           "Z")        -- U+017B LATIN CAPITAL LETTER Z WITH DOT ABOVE
  , ("ż",           "z")        -- U+017C LATIN SMALL LETTER Z WITH DOT ABOVE
  , ("Ž",           "z")        -- U+017D LATIN CAPITAL LETTER Z WITH CARON
  , ("ž",           "z")        -- U+017E LATIN SMALL LETTER Z WITH CARON
  , ("Ə",           "A")        -- U+018F LATIN CAPITAL LETTER SCHWA
  , ("Ș",           "S")        -- U+0218 LATIN CAPITAL LETTER S WITH COMMA BELOW
  , ("ș",           "s")        -- U+0219 LATIN SMALL LETTER S WITH COMMA BELOW
  , ("Ț",           "T")        -- U+021A LATIN CAPITAL LETTER T WITH COMMA BELOW
  , ("ț",           "t")        -- U+021B LATIN SMALL LETTER T WITH COMMA BELOW
  , ("ə",           "a")        -- U+0259 LATIN SMALL LETTER SCHWA
  , ("Ω",           "Omega")    -- U+03A9 GREEK CAPITAL LETTER OMEGA
  , ("α",           "alpha")    -- U+03B1 GREEK SMALL LETTER ALPHA
  , ("β",           "beta")     -- U+03B2 GREEK SMALL LETTER BETA
  , ("γ",           "gamma")    -- U+03B3 GREEK SMALL LETTER GAMMA
  , ("δ",           "delta")    -- U+03B4 GREEK SMALL LETTER DELTA
  , ("ε",           "epsilon")  -- U+03B5 GREEK SMALL LETTER EPSILON
  , ("ζ",           "zeta")     -- U+03B6 GREEK SMALL LETTER ZETA
  , ("η",           "eta")      -- U+03B7 GREEK SMALL LETTER ETA
  , ("θ",           "theta")    -- U+03B8 GREEK SMALL LETTER THETA
  , ("ι",           "iota")     -- U+03B9 GREEK SMALL LETTER IOTA
  , ("κ",           "kappa")    -- U+03BA GREEK SMALL LETTER KAPPA
  , ("λ",           "lambda")   -- U+03BB GREEK SMALL LETTER LAMDA
  , ("μ",           "mu")       -- U+03BC GREEK SMALL LETTER MU
  , ("ν",           "nu")       -- U+03BD GREEK SMALL LETTER NU
  , ("ξ",           "xi")       -- U+03BE GREEK SMALL LETTER ZI
  , ("ο",           "omicron")  -- U+03BF GREEK SMALL LETTER OMICRON
  , ("π",           "pi")       -- U+03C0 GREEK SMALL LETTER PI
  , ("ρ",           "rho")      -- U+03C1 GREEK SMALL LETTER RHO
  , ("ς",           "sigma")    -- U+03C2 GREEK SMALL LETTER FINAL SIGMA
  , ("σ",           "sigma")    -- U+03C3 GREEK SMALL LETTER SIGMA
  , ("τ",           "tau")      -- U+03C4 GREEK SMALL LETTER TAU
  , ("υ",           "upsilon")  -- U+03C5 GREEK SMALL LETTER UPSILON
  , ("φ",           "phi")      -- U+03C6 GREEK SMALL LETTER PHI
  , ("χ",           "chi")      -- U+03C7 GREEK SMALL LETTER CHI
  , ("ψ",           "psi")      -- U+03C8 GREEK SMALL LETTER PSI
  , ("ω",           "omega")    -- U+03C9 GREEK SMALL LETTER OMEGA
  , ("ẞ",           "SS")       -- U+1E9E LATIN CAPITAL LETTER SHARP S
  , ("‐",           "-")        -- U+2210 HYPHEN
  , ("–",           "-")        -- U+2013 EN DASH
  , ("—",           "-")        -- U+2014 EM DASH
  , ("‘",           "")         -- U+2018 LEFT SINGLE QUOTATION MARK
  , ("’",           "")         -- U+2019 RIGHT SINGLE QUOTATION MARK
  , ("‚",           "")         -- U+201A SINGLE LOW-9 QUOTATION MARK
  , ("‛",           "")         -- U+201B SINGLE HIGH-REVERSED-9 QUOTATION MARK
  , ("“",           "")         -- U+201C LEFT DOUBLE QUOTATION MARK
  , ("”",           "")         -- U+201D RIGHT DOUBLE QUOTATION MARK
  , ("„",           "")         -- U+201E DOUBLE LOW-9 QUOTATION MARK
  , ("‟",           "")         -- U+201F DOUBLE HIGH-REVERSED-9 QUOTATION MARK
  , ("†",           "")         -- U+2020 DAGGER
  , ("‡",           "")         -- U+2021 DOUBLE DAGGER
  , ("•",           "")         -- U+2022 BULLET
  , ("…",           "")         -- U+2026 HORIZONTAL ELLIPSIS
  , ("™",           "")         -- U+2122 TRADE MARK SIGN
  , ("ℵ",           "aleph")    -- U+2135 ALEF SYMBOL
  , ("ℶ",           "beth")     -- U+2136 BET SYMBOL
  , ("⊃",           "")         -- U+2283 SUPERSET OF
  , ("⌝",           "")         -- U+231D TOP RIGHT CORNER
  , ("�",          "")         -- U+FFFD REPLACEMENT CHARACTER
  ]

------------------------------------------------------------------------------
-- Author and title substitutions

-- | Author substitutions.
authorSubst ∷ [(Text, Text)]
authorSubst =
  [ (", ",   ",")
  , (" and", ",")
  ]

-- | Title substitutions.

-- These substitutions should be done before the substitutions of the
-- HTML entities and converting to lower case.
titleSubst ∷ [(Text,Text)]
titleSubst =
  [ ("<Emphasis Type=\"BoldItalic\">P </Emphasis>",       "P")
  , ("<Emphasis Type=\"Italic\">0 </Emphasis>",           "0")
  , ("<Emphasis Type=\"Italic\">C</Emphasis>",            "C")
  , ("<Emphasis Type=\"Italic\">CC</Emphasis>",           "CC")
  , ("<Emphasis Type=\"Italic\">I </Emphasis>",           "I")
  , ("<Emphasis Type=\"Italic\">J</Emphasis>",            "J")
  , ("<Emphasis Type=\"Italic\">Modus ponens</Emphasis>", "Modus ponens")
  , ("<Emphasis Type=\"Italic\">P </Emphasis>",           "P")
  , ("<Emphasis Type=\"Italic\">really </Emphasis>",      "really")
  , ("<Emphasis Type=\"Italic\">S-P</Emphasis>",          "S-P")
  , ("<Subscript>3</Subscript>",                          "3")
  -- The whitespace around `+` is not the standard one.
  -- TODO (2017-07-04): Added test case.
  , ("<Superscript> + </Superscript>",                    "plus")
  , ("<Subscript>&#x03C9;</Subscript>",                   "omega")
  , ("<TEX>$\\alpha$</TEX>",                              "alpha")
  , ("<TEX>$\\beta$</TEX>",                               "beta")
  , ("<TEX>$\\gamma$</TEX>",                              "gamma")
  , ("<TEX>$\\epsilon$</TEX>",                            "epsilon")
  , ("<TEX>$\\eta$</TEX>",                                "eta")
  , ("<TEX>$\\lambda$</TEX>",                             "lambda")
  , ("<TEX>$\\pi$</TEX>",                                 "pi")
  , ("<TEX>$\\omega$</TEX>",                              "omega")
  , ("<TEX>{\\sc Coq}</TEX>",                             "Coq")
  , ("<TEX>{\\sf Haskell}</TEX>:",                        "Haskell")
  , ("<TEX>{\\sc QuickSpec}</TEX>:",                      "QuickSpec")
  , ("<TEX>{\\sc QuodLibet}</TEX>!",                      "QuodLibet")
  , ("<TEX>{\\sc Vampire}</TEX>",                         "Vampire")
  ]

------------------------------------------------------------------------------
-- Weird substitutions.

-- These substitutions should be done before the substitutions of the
-- HTML entities and symbols and converting to lower case.

-- | Weird author and title substitutions.
weirdSubst ∷ [(Text, Text)]
weirdSubst =
  [ ("á",      "a")    -- U+00C3 and U+00A1 (LATIN SMALL LETTER A WITH GRAVE)
  , ("é",      "e")    -- U+00C3 and U+00A9 (LATIN SMALL LETTER E WITH ACUTE)
  , ("Ã\x00AD", "i")    -- U+00C3 and U+00AD (LATIN SMALL LETTER I GRAVE)
  -- We erase `ö` because it follows an `o` in the examples we know.
  , ("ö",      "")     -- U+00C3 and U+00B6 (LATIN SMALL LETTER O WITH DIAERESIS)
  , ("Å›",      "s")    -- U+00C5 and U+203A (LATIN CAPITAL LETTER S WITH ACUTE)
  -- TODO (2017-07-20): Five hex numbers
  , ("&#x02010;", "-")  -- U+2010 HYPHEN
  -- TODO (2017-07-17): Missing `;`.
  , ("&#8217",  "")     -- U+2019 RIGHT SINGLE QUOTATION MARK
  ]