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HTML entities
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| Red [ | |
| Title: "HTML entities" | |
| Purpose: "To decode HTML entities in a text" | |
| Author: "Oldes" | |
| Date: 12-May-2020 | |
| Version: 1.0.2 | |
| License: MIT | |
| Usage: [ | |
| "Test: ♠ & ¢ <a> and Δδ ¾" = | |
| decode-html-entities {Test: ♠ & ¢ <a> and Δδ ¾} | |
| ] | |
| TODO: {Encoder?} | |
| ] | |
| html-entities: #( | |
| ;@@ https://eastmanreference.com/list-of-html-entity-names-and-numbers | |
| ;-- Punctuation, programming, and other common symbols | |
| "lt" #"^(3C)" ; 60 Open tag | |
| "gt" #"^(3E)" ; 62 Close tag | |
| "quot" #"^(22)" ; 34 Double quote | |
| "apos" #"^(27)" ; 39 Apostrophe / single quote | |
| "amp" #"^(26)" ; 38 Ampersand | |
| "nbsp" #"^(A0)" ; 160 Space (non-breaking) | |
| "brvbar" #"^(A6)" ; 166 Broken bar | |
| "iexcl" #"^(A1)" ; 161 Upside down exclamation mark | |
| "iquest" #"^(BF)" ; 191 Upside down question mark | |
| "sect" #"^(A7)" ; 167 Section symbol | |
| "uml" #"^(A8)" ; 168 Umlaut | |
| "ordf" #"^(AA)" ; 170 Feminine ordinal indicator | |
| "ordm" #"^(BA)" ; 186 Masculine ordinal indicator | |
| "laquo" #"^(AB)" ; 171 Open double angles | |
| "raquo" #"^(BB)" ; 187 Close double angles | |
| "not" #"^(AC)" ; 172 Not sign | |
| "shy" #"^(AD)" ; 173 Soft hyphen | |
| "macr" #"^(AF)" ; 175 Overline | |
| "acute" #"^(B4)" ; 180 Acute accent | |
| "para" #"^(B6)" ; 182 Pilcrow (paragraph) | |
| "middot" #"^(B7)" ; 183 Georgian comma | |
| "cedil" #"^(B8)" ; 184 Cedilla | |
| ;-- Math symbols | |
| "minus" #"^(2212)" ; 8722 Minus sign (subtraction) | |
| "times" #"^(D7)" ; 215 Multiplication sign | |
| "divide" #"^(F7)" ; 247 Division sign | |
| "plusmn" #"^(B1)" ; 177 Plus / minus | |
| "le" #"^(2264)" ; 8804 Less or equal | |
| "ge" #"^(2265)" ; 8805 Greater or equal | |
| "sup1" #"^(B9)" ; 185 Superscript 1 | |
| "sup2" #"^(B2)" ; 178 Superscript 2 | |
| "sup3" #"^(B3)" ; 179 Superscript 3 | |
| "frac14" #"^(BC)" ; 188 1/4 | |
| "frac12" #"^(BD)" ; 189 1/2 | |
| "frac34" #"^(BE)" ; 190 3/4 | |
| "forall" #"^(2200)" ; 8704 For all | |
| "part" #"^(2202)" ; 8706 Part | |
| "exist" #"^(2203)" ; 8707 Exist | |
| "empty" #"^(2205)" ; 8709 Empty | |
| "nabla" #"^(2207)" ; 8711 Nabla | |
| "isin" #"^(2208)" ; 8712 Is in | |
| "notin" #"^(2209)" ; 8713 Not in | |
| "ni" #"^(220B)" ; 8715 Ni | |
| "prod" #"^(220F)" ; 8719 Product | |
| "sum" #"^(2211)" ; 8721 Sum | |
| "lowast" #"^(2217)" ; 8727 Asterisk (Lowast) | |
| "radic" #"^(221A)" ; 8730 Square root | |
| "prop" #"^(221D)" ; 8733 Proportional to | |
| "infin" #"^(221E)" ; 8734 Infinity | |
| "ang" #"^(2220)" ; 8736 Angle | |
| "and" #"^(2227)" ; 8743 And | |
| "or" #"^(2228)" ; 8744 Or | |
| "cap" #"^(2229)" ; 8745 Cap | |
| "cup" #"^(222A)" ; 8746 Cup | |
| "int" #"^(222B)" ; 8747 Integral | |
| "there4" #"^(2234)" ; 8756 Therefore | |
| "sim" #"^(223C)" ; 8764 Similar to | |
| "cong" #"^(2245)" ; 8773 Congurent to | |
| "asymp" #"^(2248)" ; 8776 Almost equal | |
| "ne" #"^(2260)" ; 8800 Not equal | |
| "equiv" #"^(2261)" ; 8801 Equivalent | |
| "sub" #"^(2282)" ; 8834 Subset of | |
| "sup" #"^(2283)" ; 8835 Superset of | |
| "nsub" #"^(2284)" ; 8836 Not subset of | |
| "sube" #"^(2286)" ; 8838 Subset or equal | |
| "supe" #"^(2287)" ; 8839 Superset or equal | |
| "oplus" #"^(2295)" ; 8853 Circled plus | |
| "otimes" #"^(2297)" ; 8855 Circled times | |
| ;-- Unit of measure symbols | |
| "deg" #"^(B0)" ; 176 Degrees | |
| "micro" #"^(B5)" ; 181 Micro | |
| ;-- Copyright, registered, trademark | |
| "copy" #"^(A9)" ; 169 Copyright | |
| "reg" #"^(AE)" ; 174 Registered trademark | |
| "trade" #"^(2122)" ; 8482 Trademark | |
| ;-- Currency symbols | |
| "curren" #"^(A4)" ; 164 Currency sign | |
| "cent" #"^(A2)" ; 162 Cents | |
| "pound" #"^(A3)" ; 163 British pounds | |
| "euro" #"^(20AC)" ; 8364 Euro | |
| "yen" #"^(A5)" ; 165 Yen | |
| ;-- Greek alphabet | |
| "Alpha" #"^(391)" ; 913 UPPERCASE ALPHA | |
| "alpha" #"^(3B1)" ; 945 lowercase alpha | |
| "Beta" #"^(392)" ; 914 UPPERCASE BETA | |
| "beta" #"^(3B2)" ; 946 lowercase beta | |
| "Gamma" #"^(393)" ; 915 UPPERCASE GAMMA | |
| "gamma" #"^(3B3)" ; 947 lowercase gamma | |
| "Delta" #"^(394)" ; 916 UPPERCASE DELTA | |
| "delta" #"^(3B4)" ; 948 lowercase delta | |
| "Epsilon" #"^(395)" ; 917 UPPERCASE EPSILON | |
| "epsilon" #"^(3B5)" ; 949 lowercase epsilon | |
| "Zeta" #"^(396)" ; 918 UPPERCASE ZETA | |
| "zeta" #"^(3B6)" ; 950 lowercase zeta | |
| "Eta" #"^(397)" ; 919 UPPERCASE ETA | |
| "eta" #"^(3B7)" ; 951 lowercase eta | |
| "Theta" #"^(398)" ; 920 UPPERCASE THETA | |
| "theta" #"^(3B8)" ; 952 lowercase theta | |
| "thetasym" #"^(3D1)" ; 977 alternate lowercase theta | |
| "Iota" #"^(399)" ; 921 UPPERCASE IOTA | |
| "iota" #"^(3B9)" ; 953 lowercase iota | |
| "Kappa" #"^(39A)" ; 922 UPPERCASE KAPPA | |
| "kappa" #"^(3BA)" ; 954 lowercase kappa | |
| "Lambda" #"^(39B)" ; 923 UPPERCASE LAMBDA | |
| "lambda" #"^(3BB)" ; 955 lowercase lambda | |
| "Mu" #"^(39C)" ; 924 UPPERCASE MU | |
| "mu" #"^(3BC)" ; 956 lowercase mu | |
| "Nu" #"^(39D)" ; 925 UPPERCASE NU | |
| "nu" #"^(3BD)" ; 957 lowercase nu | |
| "Xi" #"^(39E)" ; 926 UPPERCASE XI | |
| "xi" #"^(3BE)" ; 958 lowercase xi | |
| "Omicron" #"^(39F)" ; 927 UPPERCASE OMICRON | |
| "omicron" #"^(3BF)" ; 959 lowercase omicron | |
| "Pi" #"^(3A0)" ; 928 UPPERCASE PI | |
| "pi" #"^(3C0)" ; 960 lowercase pi | |
| "piv" #"^(3D6)" ; 982 alternative lowercase pi | |
| "Rho" #"^(3A1)" ; 929 UPPERCASE RHO | |
| "rho" #"^(3C1)" ; 961 lowercase rho | |
| "Sigma" #"^(3A3)" ; 931 UPPERCASE SIGMA | |
| "sigma" #"^(3C3)" ; 963 lowercase sigma | |
| "sigmaf" #"^(3C2)" ; 962 final form lowercase sigma | |
| "Tau" #"^(3A4)" ; 932 UPPERCASE TAU | |
| "tau" #"^(3C4)" ; 964 lowercase tau | |
| "Upsilon" #"^(3A5)" ; 933 UPPERCASE UPSILON | |
| "upsilon" #"^(3C5)" ; 965 lowercase upsilon | |
| "upsih" #"^(3D2)" ; 978 alternative lowercase upsilon | |
| "Phi" #"^(3A6)" ; 934 UPPERCASE PHI | |
| "phi" #"^(3C6)" ; 966 lowercase phi | |
| "Chi" #"^(3A7)" ; 935 UPPERCASE CHI | |
| "chi" #"^(3C7)" ; 967 lowercase chi | |
| "Psi" #"^(3A8)" ; 936 UPPERCASE PSI | |
| "psi" #"^(3C8)" ; 968 lowercase psi | |
| "Omega" #"^(3A9)" ; 937 UPPERCASE OMEGA | |
| "omega" #"^(3C9)" ; 969 lowercase omega | |
| ;-- Arrows | |
| "larr" #"^(2190)" ; 8592 Left arrow | |
| "uarr" #"^(2191)" ; 8593 Up arrow | |
| "rarr" #"^(2192)" ; 8594 Right arrow | |
| "darr" #"^(2193)" ; 8595 Down arrow | |
| "harr" #"^(2194)" ; 8596 Left & right arrow | |
| "crarr" #"^(21B5)" ; 8629 Carriage return arrow | |
| ;-- Spade, club, heart, diamond | |
| "spades" #"^(2660)" ; 9824 Spade | |
| "clubs" #"^(2663)" ; 9827 Club | |
| "hearts" #"^(2665)" ; 9829 Heart | |
| "diams" #"^(2666)" ; 9830 Diamond | |
| ;-- Accented letters | |
| "Agrave" #"^(C0)" ; 192 CAPITAL A GRAVE ACCENT | |
| "agrave" #"^(E0)" ; 224 lowercase a grave accent | |
| "Aacute" #"^(C1)" ; 193 CAPITAL A ACUTE ACCENT | |
| "aacute" #"^(E1)" ; 225 lowercase a acute accent | |
| "Acirc" #"^(C2)" ; 194 CAPITAL A CIRCUMFLEX ACCENT | |
| "acirc" #"^(E2)" ; 226 lowercase a circumflex accent | |
| "Atilde" #"^(C3)" ; 195 CAPITAL A TILDE ACCENT | |
| "atilde" #"^(E3)" ; 227 lowercase a tilde accent | |
| "Auml" #"^(C4)" ; 196 CAPITAL A UMLAUT ACCENT | |
| "auml" #"^(E4)" ; 228 lowercase a umlaut accent | |
| "Aring" #"^(C5)" ; 197 CAPITAL A RING ABOVE ACCENT | |
| "aring" #"^(E5)" ; 229 lowercase a ring accent | |
| "AElig" #"^(C6)" ; 198 CAPITAL AE | |
| "aelig" #"^(E6)" ; 230 lowercase ae | |
| "Ccedil" #"^(C7)" ; 199 CAPITAL C CEDILLA ACCENT | |
| "ccedil" #"^(E7)" ; 231 lowercase c cedilla accent | |
| "Egrave" #"^(C8)" ; 200 CAPITAL E GRAVE ACCENT | |
| "egrave" #"^(E8)" ; 232 lowercase e grave accent | |
| "Eacute" #"^(C9)" ; 201 CAPITAL E ACUTE ACCENT | |
| "eacute" #"^(E9)" ; 233 lowercase e acute accent | |
| "Ecirc" #"^(CA)" ; 202 CAPITAL E CIRCUMFLEX ACCENT | |
| "ecirc" #"^(EA)" ; 234 lowercase e circumflex accent | |
| "ecirc" #"^(EA)" ; 234 lowercase e circumflex accent | |
| "Euml" #"^(CB)" ; 203 CAPITAL E UMLAUT ACCENT | |
| "euml" #"^(EB)" ; 235 lowercase e umlaut accent | |
| "Igrave" #"^(CC)" ; 204 CAPITAL I GRAVE ACCENT | |
| "igrave" #"^(EC)" ; 236 lowercase i grave accent | |
| "Iacute" #"^(CD)" ; 205 CAPITAL I ACUTE ACCENT | |
| "iacute" #"^(ED)" ; 237 lowercase i acute accent | |
| "Icirc" #"^(CE)" ; 206 CAPITAL I CIRCUMFLEX ACCENT | |
| "icirc" #"^(EE)" ; 238 lowercase i circumflex accent | |
| "Iuml" #"^(CF)" ; 207 CAPITAL I UMLAUT ACCENT | |
| "iuml" #"^(EF)" ; 239 lowercase i umlaut accent | |
| "ETH" #"^(D0)" ; 208 CAPITAL ICELANDIC ETH | |
| "eth" #"^(F0)" ; 240 lowercase Icelandic eth | |
| "Ntilde" #"^(D1)" ; 209 CAPITAL N TILDE ACCENT | |
| "ntilde" #"^(F1)" ; 241 lowercase n tilde accent | |
| "Ograve" #"^(D2)" ; 210 CAPITAL O GRAVE ACCENT | |
| "ograve" #"^(F2)" ; 242 lowercase o grave accent | |
| "Oacute" #"^(D3)" ; 211 CAPITAL O ACUTE ACCENT | |
| "oacute" #"^(F3)" ; 243 lowercase o acute accent | |
| "Ocirc" #"^(D4)" ; 212 CAPITAL O CIRCUMFLEX ACCENT | |
| "ocirc" #"^(F4)" ; 244 lowercase o circumflex accent | |
| "Otilde" #"^(D5)" ; 213 CAPITAL O TILDE ACCENT | |
| "otilde" #"^(F5)" ; 245 lowercase o tilde accent | |
| "Ouml" #"^(D6)" ; 214 CAPITAL O UMLAUT ACCENT | |
| "ouml" #"^(F6)" ; 246 lowercase o umlaut accent | |
| "Oslash" #"^(D8)" ; 216 CAPITAL O SLASH ACCENT | |
| "oslash" #"^(F8)" ; 248 lowercase o slash | |
| "Ugrave" #"^(D9)" ; 217 CAPITAL U GRAVE ACCENT | |
| "ugrave" #"^(F9)" ; 249 lowercase u grave accent | |
| "Uacute" #"^(DA)" ; 218 CAPITAL U ACUTE ACCENT | |
| "uacute" #"^(FA)" ; 250 lowercase u acute accent | |
| "Ucirc" #"^(DB)" ; 219 CAPITAL U CIRCUMFLEX ACCENT | |
| "ucirc" #"^(FB)" ; 251 lowercase u circumflex accent | |
| "Uuml" #"^(DC)" ; 220 CAPITAL U UMLAUT | |
| "uuml" #"^(FC)" ; 252 lowercase u umlaut accent | |
| "Yacute" #"^(DD)" ; 221 CAPITAL Y ACUTE ACCENT | |
| "yacute" #"^(FD)" ; 253 lowercase y acute accent | |
| "yuml" #"^(FF)" ; 255 lowercase y umlaut accent | |
| "THORN" #"^(DE)" ; 222 CAPITAL ICELANDIC THORN | |
| "thorn" #"^(FE)" ; 254 lowercase Icelandic thorn | |
| "szlig" #"^(DF)" ; 223 lowercase German sharp s | |
| ;-- Miscellaneous | |
| "bull" #"^(2022)" ; 8226 Bullet | |
| "hellip" #"^(2026)" ; 8230 Horizontal ellipsis | |
| "fnof" #"^(192)" ; 402 lowercase Latin f with hook | |
| "perp" #"^(22A5)" ; 8869 Perpendicular | |
| "sdot" #"^(22C5)" ; 8901 Dot operator | |
| "OElig" #"^(152)" ; 338 UPPERCASE LATIN OE LIGATURE | |
| "oelig" #"^(153)" ; 339 lowercase Latin oe ligature | |
| "Scaron" #"^(160)" ; 352 UPPERCASE S WITH CARON | |
| "scaron" #"^(161)" ; 353 lowercase s with caron | |
| "Yuml" #"^(178)" ; 376 CAPITAL Y WITH DIAERES | |
| "circ" #"^(2C6)" ; 710 Circumflex accent | |
| "tilde" #"^(2DC)" ; 732 Tilde (different from the tilde my keyboard generates) | |
| "ndash" #"^(2013)" ; 8211 En dash | |
| "mdash" #"^(2014)" ; 8212 Em dash | |
| "lsquo" #"^(2018)" ; 8216 Left single quotation mark | |
| "rsquo" #"^(2019)" ; 8217 Right single quotation mark | |
| "sbquo" #"^(201A)" ; 8218 Single low-9 quotation mark | |
| "ldquo" #"^(201C)" ; 8220 Left double quotation mark | |
| "rdquo" #"^(201D)" ; 8221 Right double quotation mark | |
| "bdquo" #"^(201E)" ; 8222 Double low-9 quotation mark | |
| "dagger" #"^(2020)" ; 8224 Dagger | |
| "Dagger" #"^(2021)" ; 8225 Double dagger | |
| "permil" #"^(2030)" ; 8240 Per mille | |
| "prime" #"^(2032)" ; 8242 Minutes (Degrees) | |
| "Prime" #"^(2033)" ; 8243 Seconds (Degrees) | |
| "lsaquo" #"^(2039)" ; 8249 Single left angle quotation | |
| "rsaquo" #"^(2039)" ; 8249 Single right angle quotation | |
| "oline" #"^(203E)" ; 8254 Overline | |
| "lceil" #"^(2308)" ; 8968 Left ceiling | |
| "rceil" #"^(2309)" ; 8969 Right ceiling | |
| "lfloor" #"^(230A)" ; 8970 Left floor | |
| "rfloor" #"^(230B)" ; 8971 Right floor | |
| "loz" #"^(25CA)" ; 9674 Lozenge | |
| "ensp" #"^(2002)" ; 8194 En space | |
| "emsp" #"^(2003)" ; 8195 Em space | |
| "thinsp" #"^(2009)" ; 8201 Thin space | |
| "zwnj" #"^(200C)" ; 8204 Zero width non-joiner | |
| "zwj" #"^(200D)" ; 8205 Zero width joiner | |
| "lrm" #"^(200E)" ; 8206 Left-to-right mark | |
| "rlm" #"^(200F)" ; 8207 Right-to-left mark | |
| ) | |
| context [ | |
| any-except-&: complement charset "&" | |
| alphanum: charset [#"0" - #"9" #"a" - #"z" #"A" - #"Z"] | |
| digits: charset [#"0" - #"9"] | |
| set 'decode-html-entities func [ | |
| {Creates a new string with possible HTML entities converted to chars} | |
| val [string!] {Input string} | |
| /local out s e char | |
| ][ | |
| out: make string! length? val | |
| parse val [ | |
| any [ | |
| s: some any-except-& e: ( append/part out s e ) | |
| | #"&" [ | |
| #"#" copy char 1 4 digits #";" ( | |
| append out to char! to integer! char | |
| ) | |
| | s: copy char 1 10 alphanum #";" e: ( | |
| char: select/case html-entities char | |
| unless char [ char: #"&" e: :s ] | |
| append out char | |
| ) :e | |
| | (append out #"&") | |
| ] | |
| ] | |
| ] | |
| out | |
| ] | |
| ] |
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