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// HTML 支持的数学符号
function strNumDiscode(str) {
str = str.replace(/∀|∀|∀/g, '∀');
str = str.replace(/∂|∂|∂/g, '∂');
str = str.replace(/∃|∃|∃/g, '∃');
str = str.replace(/∅|∅|∅/g, '∅');
str = str.replace(/∇|∇|∇/g, '∇');
str = str.replace(/∈|∈|∈/g, '∈');
str = str.replace(/∉|∉|∉/g, '∉');
str = str.replace(/∋|∋|∋/g, '∋');
str = str.replace(/∏|∏|∏/g, '∏');
str = str.replace(/∑|∑|∑/g, '∑');
str = str.replace(/−|−|−/g, '−');
str = str.replace(/∗|∗|∗/g, '∗');
str = str.replace(/√|√|√/g, '√');
str = str.replace(/∝|∝|∝/g, '∝');
str = str.replace(/∞|∞|∞/g, '∞');
str = str.replace(/∠|∠|∠/g, '∠');
str = str.replace(/∧|∧|∧/g, '∧');
str = str.replace(/∨|∨|∨/g, '∨');
str = str.replace(/∩|∩|∩/g, '∩');
str = str.replace(/∪|∪|∪/g, '∪');
str = str.replace(/∫|∫|∫/g, '∫');
str = str.replace(/∴|∴|∴/g, '∴');
str = str.replace(/∼|∼|∼/g, '∼');
str = str.replace(/≅|≅|≅/g, '≅');
str = str.replace(/≈|≈|≈/g, '≈');
str = str.replace(/≠|≠|≠/g, '≠');
str = str.replace(/≤|≤|≤/g, '≤');
str = str.replace(/≥|≥|≥/g, '≥');
str = str.replace(/⊂|⊂|⊂/g, '⊂');
str = str.replace(/⊃|⊃|⊃/g, '⊃');
str = str.replace(/⊄|⊄|⊄/g, '⊄');
str = str.replace(/⊆|⊆|⊆/g, '⊆');
str = str.replace(/⊇|⊇|⊇/g, '⊇');
str = str.replace(/⊕|⊕|⊕/g, '⊕');
str = str.replace(/⊗|⊗|⊗/g, '⊗');
str = str.replace(/⊥|⊥|⊥/g, '⊥');
str = str.replace(/⋅|⋅|⋅/g, '⋅');
return str;
}

// HTML 支持的希腊字母
function strGreeceDiscode(str) {
str = str.replace(/Α|Α|Α/g, 'Α');
str = str.replace(/Β|Β|Β/g, 'Β');
str = str.replace(/Γ|Γ|Γ/g, 'Γ');
str = str.replace(/Δ|Δ|Δ/g, 'Δ');
str = str.replace(/Ε|Ε|Ε/g, 'Ε');
str = str.replace(/Ζ|Ζ|Ζ/g, 'Ζ');
str = str.replace(/Η|Η|Η/g, 'Η');
str = str.replace(/Θ|Θ|Θ/g, 'Θ');
str = str.replace(/Ι|Ι|Ι/g, 'Ι');
str = str.replace(/Κ|Κ|Κ/g, 'Κ');
str = str.replace(/Λ|Λ|Λ/g, 'Λ');
str = str.replace(/Μ|Μ|Μ/g, 'Μ');
str = str.replace(/Ν|Ν|Ν/g, 'Ν');
str = str.replace(/Ξ|Ν|Ν/g, 'Ν');
str = str.replace(/Ο|Ο|Ο/g, 'Ο');
str = str.replace(/Π|Π|Π/g, 'Π');
str = str.replace(/Ρ|Ρ|Ρ/g, 'Ρ');
str = str.replace(/Σ|Σ|Σ/g, 'Σ');
str = str.replace(/Τ|Τ|Τ/g, 'Τ');
str = str.replace(/Υ|Υ|Υ/g, 'Υ');
str = str.replace(/Φ|Φ|Φ/g, 'Φ');
str = str.replace(/Χ|Χ|Χ/g, 'Χ');
str = str.replace(/Ψ|Ψ|Ψ/g, 'Ψ');
str = str.replace(/Ω|Ω|Ω/g, 'Ω');

str = str.replace(/α|α|α/g, 'α');
str = str.replace(/β|β|β/g, 'β');
str = str.replace(/γ|γ|γ/g, 'γ');
str = str.replace(/δ|δ|δ/g, 'δ');
str = str.replace(/ε|ε|ε/g, 'ε');
str = str.replace(/ζ|ζ|ζ/g, 'ζ');
str = str.replace(/η|η|η/g, 'η');
str = str.replace(/θ|θ|θ/g, 'θ');
str = str.replace(/ι|ι|ι/g, 'ι');
str = str.replace(/κ|κ|κ/g, 'κ');
str = str.replace(/λ|λ|λ/g, 'λ');
str = str.replace(/μ|μ|μ/g, 'μ');
str = str.replace(/ν|ν|ν/g, 'ν');
str = str.replace(/ξ|ξ|ξ/g, 'ξ');
str = str.replace(/ο|ο|ο/g, 'ο');
str = str.replace(/π|π|π/g, 'π');
str = str.replace(/ρ|ρ|ρ/g, 'ρ');
str = str.replace(/ς|ς|ς/g, 'ς');
str = str.replace(/σ|σ|σ/g, 'σ');
str = str.replace(/τ|τ|τ/g, 'τ');
str = str.replace(/υ|υ|υ/g, 'υ');
str = str.replace(/φ|φ|φ/g, 'φ');
str = str.replace(/χ|χ|χ/g, 'χ');
str = str.replace(/ψ|ψ|ψ/g, 'ψ');
str = str.replace(/ω|ω|ω/g, 'ω');
str = str.replace(/ϑ|ϑ|ϑ/g, 'ϑ');
str = str.replace(/ϒ|ϒ|ϒ/g, 'ϒ');
str = str.replace(/ϖ|ϖ|ϖ/g, 'ϖ');
str = str.replace(/·|·|·/g, '·');
return str;
}

function strcharacterDiscode(str) {
// 加入常用解析

// str = str.replace(/ | | /g, " ");
// str = str.replace(/ | | /g, ' ');
// str = str.replace(/&#12288;|&#x3000;/g, '<span class=\'spaceshow\'>　</span>');
// str = str.replace(/&emsp;|&#8195;|&#x2003;/g, '&emsp;');
// str = str.replace(/&quot;|&#34;|&#x22;/g, "\"");
// str = str.replace(/&apos;|&#39;|&#x27;/g, "&apos;");
// str = str.replace(/&acute;|&#180;|&#xB4;/g, "´");
// str = str.replace(/&times;|&#215;|&#xD7;/g, "×");
// str = str.replace(/&divide;|&#247;|&#xF7;/g, "÷");
// str = str.replace(/&amp;|&#38;|&#x26;/g, '&amp;');
// str = str.replace(/&lt;|&#60;|&#x3c;/g, '&lt;');
// str = str.replace(/&gt;|&#62;|&#x3e;/g, '&gt;');




str = str.replace(/&nbsp;|&#32;|&#x20;/g, "<span class='spaceshow'> </span>");
str = str.replace(/&ensp;|&#8194;|&#x2002;/g, '<span class=\'spaceshow\'> </span>');
str = str.replace(/&#12288;|&#x3000;/g, '<span class=\'spaceshow\'>　</span>');
str = str.replace(/&emsp;|&#8195;|&#x2003;/g, '<span class=\'spaceshow\'> </span>');
str = str.replace(/&quot;|&#34;|&#x22;/g, "\"");
str = str.replace(/&quot;|&#39;|&#x27;/g, "'");
str = str.replace(/&acute;|&#180;|&#xB4;/g, "´");
str = str.replace(/&times;|&#215;|&#xD7;/g, "×");
str = str.replace(/&divide;|&#247;|&#xF7;/g, "÷");
str = str.replace(/&amp;|&#38;|&#x26;/g, '&');
str = str.replace(/&lt;|&#60;|&#x3c;/g, '<');
str = str.replace(/&gt;|&#62;|&#x3e;/g, '>');
return str;
}

// HTML 支持的其他实体
function strOtherDiscode(str) {
str = str.replace(/&OElig;|&#338;|&#x152;/g, 'Œ');
str = str.replace(/&oelig;|&#339;|&#x153;/g, 'œ');
str = str.replace(/&Scaron;|&#352;|&#x160;/g, 'Š');
str = str.replace(/&scaron;|&#353;|&#x161;/g, 'š');
str = str.replace(/&Yuml;|&#376;|&#x178;/g, 'Ÿ');
str = str.replace(/&fnof;|&#402;|&#x192;/g, 'ƒ');
str = str.replace(/&circ;|&#710;|&#x2c6;/g, 'ˆ');
str = str.replace(/&tilde;|&#732;|&#x2dc;/g, '˜');
str = str.replace(/&thinsp;|$#8201;|&#x2009;/g, '<span class=\'spaceshow\'> </span>');
str = str.replace(/&zwnj;|&#8204;|&#x200C;/g, '<span class=\'spaceshow\'>‌</span>');
str = str.replace(/&zwj;|$#8205;|&#x200D;/g, '<span class=\'spaceshow\'>‍</span>');
str = str.replace(/&lrm;|$#8206;|&#x200E;/g, '<span class=\'spaceshow\'>‎</span>');
str = str.replace(/&rlm;|&#8207;|&#x200F;/g, '<span class=\'spaceshow\'>‏</span>');
str = str.replace(/&ndash;|&#8211;|&#x2013;/g, '–');
str = str.replace(/&mdash;|&#8212;|&#x2014;/g, '—');
str = str.replace(/&lsquo;|&#8216;|&#x2018;/g, '‘');
str = str.replace(/&rsquo;|&#8217;|&#x2019;/g, '’');
str = str.replace(/&sbquo;|&#8218;|&#x201a;/g, '‚');
str = str.replace(/&ldquo;|&#8220;|&#x201c;/g, '“');
str = str.replace(/&rdquo;|&#8221;|&#x201d;/g, '”');
str = str.replace(/&bdquo;|&#8222;|&#x201e;/g, '„');
str = str.replace(/&dagger;|&#8224;|&#x2020;/g, '†');
str = str.replace(/&Dagger;|&#8225;|&#x2021;/g, '‡');
str = str.replace(/&bull;|&#8226;|&#x2022;/g, '•');
str = str.replace(/&hellip;|&#8230;|&#x2026;/g, '…');
str = str.replace(/&permil;|&#8240;|&#x2030;/g, '‰');
str = str.replace(/&prime;|&#8242;|&#x2032;/g, '′');
str = str.replace(/&Prime;|&#8243;|&#x2033;/g, '″');
str = str.replace(/&lsaquo;|&#8249;|&#x2039;/g, '‹');
str = str.replace(/&rsaquo;|&#8250;|&#x203a;/g, '›');
str = str.replace(/&oline;|&#8254;|&#x203e;/g, '‾');
str = str.replace(/&euro;|&#8364;|&#x20ac;/g, '€');
str = str.replace(/&trade;|&#8482;|&#x2122;/g, '™');
str = str.replace(/&larr;|&#8592;|&#x2190;/g, '←');
str = str.replace(/&uarr;|&#8593;|&#x2191;/g, '↑');
str = str.replace(/&rarr;|&#8594;|&#x2192;/g, '→');
str = str.replace(/&darr;|&#8595;|&#x2193;/g, '↓');
str = str.replace(/&harr;|&#8596;|&#x2194;/g, '↔');
str = str.replace(/&crarr;|&#8629;|&#x21b5;/g, '↵');
str = str.replace(/&lceil;|&#8968;|&#x2308;/g, '⌈');
str = str.replace(/&rceil;|&#8969;|&#x2309;/g, '⌉');
str = str.replace(/&lfloor;|&#8970;|&#x230a;/g, '⌊');
str = str.replace(/&rfloor;|&#8971;|&#x230b;/g, '⌋');
str = str.replace(/&loz;|&#9674;|&#x25ca;/g, '◊');
str = str.replace(/&spades;|&#9824;|&#x2660;/g, '♠');
str = str.replace(/&clubs;|&#9827;|&#x2663;/g, '♣');
str = str.replace(/&hearts;|&#9829;|&#x2665;/g, '♥');
str = str.replace(/&diams;|&#9830;|&#x2666;/g, '♦');
return str;
}

function strDiscode(str) {
  str = strNumDiscode(str);
  str = strGreeceDiscode(str);
  str = strcharacterDiscode(str);
  str = strOtherDiscode(str);
  return str;
}

function urlToHttpUrl(url, domain) {
  if (/^\/\//.test(url)) {
    return `https:${url}`;
  } else if (/^\//.test(url)) {
    return `https://${domain}${url}`;
  }
  return url;
}

export default {
  strDiscode,
  urlToHttpUrl,
};