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unified-ai-platform/node_modules/acorn-jsx/LICENSE

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+Copyright (C) 2012-2017 by Ingvar Stepanyan
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

unified-ai-platform/node_modules/acorn-jsx/index.js

@@ -0,0 +1,488 @@
+'use strict';
+
+const XHTMLEntities = require('./xhtml');
+
+const hexNumber = /^[\da-fA-F]+$/;
+const decimalNumber = /^\d+$/;
+
+// The map to `acorn-jsx` tokens from `acorn` namespace objects.
+const acornJsxMap = new WeakMap();
+
+// Get the original tokens for the given `acorn` namespace object.
+function getJsxTokens(acorn) {
+  acorn = acorn.Parser.acorn || acorn;
+  let acornJsx = acornJsxMap.get(acorn);
+  if (!acornJsx) {
+    const tt = acorn.tokTypes;
+    const TokContext = acorn.TokContext;
+    const TokenType = acorn.TokenType;
+    const tc_oTag = new TokContext('<tag', false);
+    const tc_cTag = new TokContext('</tag', false);
+    const tc_expr = new TokContext('<tag>...</tag>', true, true);
+    const tokContexts = {
+      tc_oTag: tc_oTag,
+      tc_cTag: tc_cTag,
+      tc_expr: tc_expr
+    };
+    const tokTypes = {
+      jsxName: new TokenType('jsxName'),
+      jsxText: new TokenType('jsxText', {beforeExpr: true}),
+      jsxTagStart: new TokenType('jsxTagStart', {startsExpr: true}),
+      jsxTagEnd: new TokenType('jsxTagEnd')
+    };
+
+    tokTypes.jsxTagStart.updateContext = function() {
+      this.context.push(tc_expr); // treat as beginning of JSX expression
+      this.context.push(tc_oTag); // start opening tag context
+      this.exprAllowed = false;
+    };
+    tokTypes.jsxTagEnd.updateContext = function(prevType) {
+      let out = this.context.pop();
+      if (out === tc_oTag && prevType === tt.slash || out === tc_cTag) {
+        this.context.pop();
+        this.exprAllowed = this.curContext() === tc_expr;
+      } else {
+        this.exprAllowed = true;
+      }
+    };
+
+    acornJsx = { tokContexts: tokContexts, tokTypes: tokTypes };
+    acornJsxMap.set(acorn, acornJsx);
+  }
+
+  return acornJsx;
+}
+
+// Transforms JSX element name to string.
+
+function getQualifiedJSXName(object) {
+  if (!object)
+    return object;
+
+  if (object.type === 'JSXIdentifier')
+    return object.name;
+
+  if (object.type === 'JSXNamespacedName')
+    return object.namespace.name + ':' + object.name.name;
+
+  if (object.type === 'JSXMemberExpression')
+    return getQualifiedJSXName(object.object) + '.' +
+    getQualifiedJSXName(object.property);
+}
+
+module.exports = function(options) {
+  options = options || {};
+  return function(Parser) {
+    return plugin({
+      allowNamespaces: options.allowNamespaces !== false,
+      allowNamespacedObjects: !!options.allowNamespacedObjects
+    }, Parser);
+  };
+};
+
+// This is `tokTypes` of the peer dep.
+// This can be different instances from the actual `tokTypes` this plugin uses.
+Object.defineProperty(module.exports, "tokTypes", {
+  get: function get_tokTypes() {
+    return getJsxTokens(require("acorn")).tokTypes;
+  },
+  configurable: true,
+  enumerable: true
+});
+
+function plugin(options, Parser) {
+  const acorn = Parser.acorn || require("acorn");
+  const acornJsx = getJsxTokens(acorn);
+  const tt = acorn.tokTypes;
+  const tok = acornJsx.tokTypes;
+  const tokContexts = acorn.tokContexts;
+  const tc_oTag = acornJsx.tokContexts.tc_oTag;
+  const tc_cTag = acornJsx.tokContexts.tc_cTag;
+  const tc_expr = acornJsx.tokContexts.tc_expr;
+  const isNewLine = acorn.isNewLine;
+  const isIdentifierStart = acorn.isIdentifierStart;
+  const isIdentifierChar = acorn.isIdentifierChar;
+
+  return class extends Parser {
+    // Expose actual `tokTypes` and `tokContexts` to other plugins.
+    static get acornJsx() {
+      return acornJsx;
+    }
+
+    // Reads inline JSX contents token.
+    jsx_readToken() {
+      let out = '', chunkStart = this.pos;
+      for (;;) {
+        if (this.pos >= this.input.length)
+          this.raise(this.start, 'Unterminated JSX contents');
+        let ch = this.input.charCodeAt(this.pos);
+
+        switch (ch) {
+        case 60: // '<'
+        case 123: // '{'
+          if (this.pos === this.start) {
+            if (ch === 60 && this.exprAllowed) {
+              ++this.pos;
+              return this.finishToken(tok.jsxTagStart);
+            }
+            return this.getTokenFromCode(ch);
+          }
+          out += this.input.slice(chunkStart, this.pos);
+          return this.finishToken(tok.jsxText, out);
+
+        case 38: // '&'
+          out += this.input.slice(chunkStart, this.pos);
+          out += this.jsx_readEntity();
+          chunkStart = this.pos;
+          break;
+
+        case 62: // '>'
+        case 125: // '}'
+          this.raise(
+            this.pos,
+            "Unexpected token `" + this.input[this.pos] + "`. Did you mean `" +
+              (ch === 62 ? "&gt;" : "&rbrace;") + "` or " + "`{\"" + this.input[this.pos] + "\"}" + "`?"
+          );
+
+        default:
+          if (isNewLine(ch)) {
+            out += this.input.slice(chunkStart, this.pos);
+            out += this.jsx_readNewLine(true);
+            chunkStart = this.pos;
+          } else {
+            ++this.pos;
+          }
+        }
+      }
+    }
+
+    jsx_readNewLine(normalizeCRLF) {
+      let ch = this.input.charCodeAt(this.pos);
+      let out;
+      ++this.pos;
+      if (ch === 13 && this.input.charCodeAt(this.pos) === 10) {
+        ++this.pos;
+        out = normalizeCRLF ? '\n' : '\r\n';
+      } else {
+        out = String.fromCharCode(ch);
+      }
+      if (this.options.locations) {
+        ++this.curLine;
+        this.lineStart = this.pos;
+      }
+
+      return out;
+    }
+
+    jsx_readString(quote) {
+      let out = '', chunkStart = ++this.pos;
+      for (;;) {
+        if (this.pos >= this.input.length)
+          this.raise(this.start, 'Unterminated string constant');
+        let ch = this.input.charCodeAt(this.pos);
+        if (ch === quote) break;
+        if (ch === 38) { // '&'
+          out += this.input.slice(chunkStart, this.pos);
+          out += this.jsx_readEntity();
+          chunkStart = this.pos;
+        } else if (isNewLine(ch)) {
+          out += this.input.slice(chunkStart, this.pos);
+          out += this.jsx_readNewLine(false);
+          chunkStart = this.pos;
+        } else {
+          ++this.pos;
+        }
+      }
+      out += this.input.slice(chunkStart, this.pos++);
+      return this.finishToken(tt.string, out);
+    }
+
+    jsx_readEntity() {
+      let str = '', count = 0, entity;
+      let ch = this.input[this.pos];
+      if (ch !== '&')
+        this.raise(this.pos, 'Entity must start with an ampersand');
+      let startPos = ++this.pos;
+      while (this.pos < this.input.length && count++ < 10) {
+        ch = this.input[this.pos++];
+        if (ch === ';') {
+          if (str[0] === '#') {
+            if (str[1] === 'x') {
+              str = str.substr(2);
+              if (hexNumber.test(str))
+                entity = String.fromCharCode(parseInt(str, 16));
+            } else {
+              str = str.substr(1);
+              if (decimalNumber.test(str))
+                entity = String.fromCharCode(parseInt(str, 10));
+            }
+          } else {
+            entity = XHTMLEntities[str];
+          }
+          break;
+        }
+        str += ch;
+      }
+      if (!entity) {
+        this.pos = startPos;
+        return '&';
+      }
+      return entity;
+    }
+
+    // Read a JSX identifier (valid tag or attribute name).
+    //
+    // Optimized version since JSX identifiers can't contain
+    // escape characters and so can be read as single slice.
+    // Also assumes that first character was already checked
+    // by isIdentifierStart in readToken.
+
+    jsx_readWord() {
+      let ch, start = this.pos;
+      do {
+        ch = this.input.charCodeAt(++this.pos);
+      } while (isIdentifierChar(ch) || ch === 45); // '-'
+      return this.finishToken(tok.jsxName, this.input.slice(start, this.pos));
+    }
+
+    // Parse next token as JSX identifier
+
+    jsx_parseIdentifier() {
+      let node = this.startNode();
+      if (this.type === tok.jsxName)
+        node.name = this.value;
+      else if (this.type.keyword)
+        node.name = this.type.keyword;
+      else
+        this.unexpected();
+      this.next();
+      return this.finishNode(node, 'JSXIdentifier');
+    }
+
+    // Parse namespaced identifier.
+
+    jsx_parseNamespacedName() {
+      let startPos = this.start, startLoc = this.startLoc;
+      let name = this.jsx_parseIdentifier();
+      if (!options.allowNamespaces || !this.eat(tt.colon)) return name;
+      var node = this.startNodeAt(startPos, startLoc);
+      node.namespace = name;
+      node.name = this.jsx_parseIdentifier();
+      return this.finishNode(node, 'JSXNamespacedName');
+    }
+
+    // Parses element name in any form - namespaced, member
+    // or single identifier.
+
+    jsx_parseElementName() {
+      if (this.type === tok.jsxTagEnd) return '';
+      let startPos = this.start, startLoc = this.startLoc;
+      let node = this.jsx_parseNamespacedName();
+      if (this.type === tt.dot && node.type === 'JSXNamespacedName' && !options.allowNamespacedObjects) {
+        this.unexpected();
+      }
+      while (this.eat(tt.dot)) {
+        let newNode = this.startNodeAt(startPos, startLoc);
+        newNode.object = node;
+        newNode.property = this.jsx_parseIdentifier();
+        node = this.finishNode(newNode, 'JSXMemberExpression');
+      }
+      return node;
+    }
+
+    // Parses any type of JSX attribute value.
+
+    jsx_parseAttributeValue() {
+      switch (this.type) {
+      case tt.braceL:
+        let node = this.jsx_parseExpressionContainer();
+        if (node.expression.type === 'JSXEmptyExpression')
+          this.raise(node.start, 'JSX attributes must only be assigned a non-empty expression');
+        return node;
+
+      case tok.jsxTagStart:
+      case tt.string:
+        return this.parseExprAtom();
+
+      default:
+        this.raise(this.start, 'JSX value should be either an expression or a quoted JSX text');
+      }
+    }
+
+    // JSXEmptyExpression is unique type since it doesn't actually parse anything,
+    // and so it should start at the end of last read token (left brace) and finish
+    // at the beginning of the next one (right brace).
+
+    jsx_parseEmptyExpression() {
+      let node = this.startNodeAt(this.lastTokEnd, this.lastTokEndLoc);
+      return this.finishNodeAt(node, 'JSXEmptyExpression', this.start, this.startLoc);
+    }
+
+    // Parses JSX expression enclosed into curly brackets.
+
+    jsx_parseExpressionContainer() {
+      let node = this.startNode();
+      this.next();
+      node.expression = this.type === tt.braceR
+        ? this.jsx_parseEmptyExpression()
+        : this.parseExpression();
+      this.expect(tt.braceR);
+      return this.finishNode(node, 'JSXExpressionContainer');
+    }
+
+    // Parses following JSX attribute name-value pair.
+
+    jsx_parseAttribute() {
+      let node = this.startNode();
+      if (this.eat(tt.braceL)) {
+        this.expect(tt.ellipsis);
+        node.argument = this.parseMaybeAssign();
+        this.expect(tt.braceR);
+        return this.finishNode(node, 'JSXSpreadAttribute');
+      }
+      node.name = this.jsx_parseNamespacedName();
+      node.value = this.eat(tt.eq) ? this.jsx_parseAttributeValue() : null;
+      return this.finishNode(node, 'JSXAttribute');
+    }
+
+    // Parses JSX opening tag starting after '<'.
+
+    jsx_parseOpeningElementAt(startPos, startLoc) {
+      let node = this.startNodeAt(startPos, startLoc);
+      node.attributes = [];
+      let nodeName = this.jsx_parseElementName();
+      if (nodeName) node.name = nodeName;
+      while (this.type !== tt.slash && this.type !== tok.jsxTagEnd)
+        node.attributes.push(this.jsx_parseAttribute());
+      node.selfClosing = this.eat(tt.slash);
+      this.expect(tok.jsxTagEnd);
+      return this.finishNode(node, nodeName ? 'JSXOpeningElement' : 'JSXOpeningFragment');
+    }
+
+    // Parses JSX closing tag starting after '</'.
+
+    jsx_parseClosingElementAt(startPos, startLoc) {
+      let node = this.startNodeAt(startPos, startLoc);
+      let nodeName = this.jsx_parseElementName();
+      if (nodeName) node.name = nodeName;
+      this.expect(tok.jsxTagEnd);
+      return this.finishNode(node, nodeName ? 'JSXClosingElement' : 'JSXClosingFragment');
+    }
+
+    // Parses entire JSX element, including it's opening tag
+    // (starting after '<'), attributes, contents and closing tag.
+
+    jsx_parseElementAt(startPos, startLoc) {
+      let node = this.startNodeAt(startPos, startLoc);
+      let children = [];
+      let openingElement = this.jsx_parseOpeningElementAt(startPos, startLoc);
+      let closingElement = null;
+
+      if (!openingElement.selfClosing) {
+        contents: for (;;) {
+          switch (this.type) {
+          case tok.jsxTagStart:
+            startPos = this.start; startLoc = this.startLoc;
+            this.next();
+            if (this.eat(tt.slash)) {
+              closingElement = this.jsx_parseClosingElementAt(startPos, startLoc);
+              break contents;
+            }
+            children.push(this.jsx_parseElementAt(startPos, startLoc));
+            break;
+
+          case tok.jsxText:
+            children.push(this.parseExprAtom());
+            break;
+
+          case tt.braceL:
+            children.push(this.jsx_parseExpressionContainer());
+            break;
+
+          default:
+            this.unexpected();
+          }
+        }
+        if (getQualifiedJSXName(closingElement.name) !== getQualifiedJSXName(openingElement.name)) {
+          this.raise(
+            closingElement.start,
+            'Expected corresponding JSX closing tag for <' + getQualifiedJSXName(openingElement.name) + '>');
+        }
+      }
+      let fragmentOrElement = openingElement.name ? 'Element' : 'Fragment';
+
+      node['opening' + fragmentOrElement] = openingElement;
+      node['closing' + fragmentOrElement] = closingElement;
+      node.children = children;
+      if (this.type === tt.relational && this.value === "<") {
+        this.raise(this.start, "Adjacent JSX elements must be wrapped in an enclosing tag");
+      }
+      return this.finishNode(node, 'JSX' + fragmentOrElement);
+    }
+
+    // Parse JSX text
+
+    jsx_parseText() {
+      let node = this.parseLiteral(this.value);
+      node.type = "JSXText";
+      return node;
+    }
+
+    // Parses entire JSX element from current position.
+
+    jsx_parseElement() {
+      let startPos = this.start, startLoc = this.startLoc;
+      this.next();
+      return this.jsx_parseElementAt(startPos, startLoc);
+    }
+
+    parseExprAtom(refShortHandDefaultPos) {
+      if (this.type === tok.jsxText)
+        return this.jsx_parseText();
+      else if (this.type === tok.jsxTagStart)
+        return this.jsx_parseElement();
+      else
+        return super.parseExprAtom(refShortHandDefaultPos);
+    }
+
+    readToken(code) {
+      let context = this.curContext();
+
+      if (context === tc_expr) return this.jsx_readToken();
+
+      if (context === tc_oTag || context === tc_cTag) {
+        if (isIdentifierStart(code)) return this.jsx_readWord();
+
+        if (code == 62) {
+          ++this.pos;
+          return this.finishToken(tok.jsxTagEnd);
+        }
+
+        if ((code === 34 || code === 39) && context == tc_oTag)
+          return this.jsx_readString(code);
+      }
+
+      if (code === 60 && this.exprAllowed && this.input.charCodeAt(this.pos + 1) !== 33) {
+        ++this.pos;
+        return this.finishToken(tok.jsxTagStart);
+      }
+      return super.readToken(code);
+    }
+
+    updateContext(prevType) {
+      if (this.type == tt.braceL) {
+        var curContext = this.curContext();
+        if (curContext == tc_oTag) this.context.push(tokContexts.b_expr);
+        else if (curContext == tc_expr) this.context.push(tokContexts.b_tmpl);
+        else super.updateContext(prevType);
+        this.exprAllowed = true;
+      } else if (this.type === tt.slash && prevType === tok.jsxTagStart) {
+        this.context.length -= 2; // do not consider JSX expr -> JSX open tag -> ... anymore
+        this.context.push(tc_cTag); // reconsider as closing tag context
+        this.exprAllowed = false;
+      } else {
+        return super.updateContext(prevType);
+      }
+    }
+  };
+}

unified-ai-platform/node_modules/acorn-jsx/xhtml.js

@@ -0,0 +1,255 @@
+module.exports = {
+  quot: '\u0022',
+  amp: '&',
+  apos: '\u0027',
+  lt: '<',
+  gt: '>',
+  nbsp: '\u00A0',
+  iexcl: '\u00A1',
+  cent: '\u00A2',
+  pound: '\u00A3',
+  curren: '\u00A4',
+  yen: '\u00A5',
+  brvbar: '\u00A6',
+  sect: '\u00A7',
+  uml: '\u00A8',
+  copy: '\u00A9',
+  ordf: '\u00AA',
+  laquo: '\u00AB',
+  not: '\u00AC',
+  shy: '\u00AD',
+  reg: '\u00AE',
+  macr: '\u00AF',
+  deg: '\u00B0',
+  plusmn: '\u00B1',
+  sup2: '\u00B2',
+  sup3: '\u00B3',
+  acute: '\u00B4',
+  micro: '\u00B5',
+  para: '\u00B6',
+  middot: '\u00B7',
+  cedil: '\u00B8',
+  sup1: '\u00B9',
+  ordm: '\u00BA',
+  raquo: '\u00BB',
+  frac14: '\u00BC',
+  frac12: '\u00BD',
+  frac34: '\u00BE',
+  iquest: '\u00BF',
+  Agrave: '\u00C0',
+  Aacute: '\u00C1',
+  Acirc: '\u00C2',
+  Atilde: '\u00C3',
+  Auml: '\u00C4',
+  Aring: '\u00C5',
+  AElig: '\u00C6',
+  Ccedil: '\u00C7',
+  Egrave: '\u00C8',
+  Eacute: '\u00C9',
+  Ecirc: '\u00CA',
+  Euml: '\u00CB',
+  Igrave: '\u00CC',
+  Iacute: '\u00CD',
+  Icirc: '\u00CE',
+  Iuml: '\u00CF',
+  ETH: '\u00D0',
+  Ntilde: '\u00D1',
+  Ograve: '\u00D2',
+  Oacute: '\u00D3',
+  Ocirc: '\u00D4',
+  Otilde: '\u00D5',
+  Ouml: '\u00D6',
+  times: '\u00D7',
+  Oslash: '\u00D8',
+  Ugrave: '\u00D9',
+  Uacute: '\u00DA',
+  Ucirc: '\u00DB',
+  Uuml: '\u00DC',
+  Yacute: '\u00DD',
+  THORN: '\u00DE',
+  szlig: '\u00DF',
+  agrave: '\u00E0',
+  aacute: '\u00E1',
+  acirc: '\u00E2',
+  atilde: '\u00E3',
+  auml: '\u00E4',
+  aring: '\u00E5',
+  aelig: '\u00E6',
+  ccedil: '\u00E7',
+  egrave: '\u00E8',
+  eacute: '\u00E9',
+  ecirc: '\u00EA',
+  euml: '\u00EB',
+  igrave: '\u00EC',
+  iacute: '\u00ED',
+  icirc: '\u00EE',
+  iuml: '\u00EF',
+  eth: '\u00F0',
+  ntilde: '\u00F1',
+  ograve: '\u00F2',
+  oacute: '\u00F3',
+  ocirc: '\u00F4',
+  otilde: '\u00F5',
+  ouml: '\u00F6',
+  divide: '\u00F7',
+  oslash: '\u00F8',
+  ugrave: '\u00F9',
+  uacute: '\u00FA',
+  ucirc: '\u00FB',
+  uuml: '\u00FC',
+  yacute: '\u00FD',
+  thorn: '\u00FE',
+  yuml: '\u00FF',
+  OElig: '\u0152',
+  oelig: '\u0153',
+  Scaron: '\u0160',
+  scaron: '\u0161',
+  Yuml: '\u0178',
+  fnof: '\u0192',
+  circ: '\u02C6',
+  tilde: '\u02DC',
+  Alpha: '\u0391',
+  Beta: '\u0392',
+  Gamma: '\u0393',
+  Delta: '\u0394',
+  Epsilon: '\u0395',
+  Zeta: '\u0396',
+  Eta: '\u0397',
+  Theta: '\u0398',
+  Iota: '\u0399',
+  Kappa: '\u039A',
+  Lambda: '\u039B',
+  Mu: '\u039C',
+  Nu: '\u039D',
+  Xi: '\u039E',
+  Omicron: '\u039F',
+  Pi: '\u03A0',
+  Rho: '\u03A1',
+  Sigma: '\u03A3',
+  Tau: '\u03A4',
+  Upsilon: '\u03A5',
+  Phi: '\u03A6',
+  Chi: '\u03A7',
+  Psi: '\u03A8',
+  Omega: '\u03A9',
+  alpha: '\u03B1',
+  beta: '\u03B2',
+  gamma: '\u03B3',
+  delta: '\u03B4',
+  epsilon: '\u03B5',
+  zeta: '\u03B6',
+  eta: '\u03B7',
+  theta: '\u03B8',
+  iota: '\u03B9',
+  kappa: '\u03BA',
+  lambda: '\u03BB',
+  mu: '\u03BC',
+  nu: '\u03BD',
+  xi: '\u03BE',
+  omicron: '\u03BF',
+  pi: '\u03C0',
+  rho: '\u03C1',
+  sigmaf: '\u03C2',
+  sigma: '\u03C3',
+  tau: '\u03C4',
+  upsilon: '\u03C5',
+  phi: '\u03C6',
+  chi: '\u03C7',
+  psi: '\u03C8',
+  omega: '\u03C9',
+  thetasym: '\u03D1',
+  upsih: '\u03D2',
+  piv: '\u03D6',
+  ensp: '\u2002',
+  emsp: '\u2003',
+  thinsp: '\u2009',
+  zwnj: '\u200C',
+  zwj: '\u200D',
+  lrm: '\u200E',
+  rlm: '\u200F',
+  ndash: '\u2013',
+  mdash: '\u2014',
+  lsquo: '\u2018',
+  rsquo: '\u2019',
+  sbquo: '\u201A',
+  ldquo: '\u201C',
+  rdquo: '\u201D',
+  bdquo: '\u201E',
+  dagger: '\u2020',
+  Dagger: '\u2021',
+  bull: '\u2022',
+  hellip: '\u2026',
+  permil: '\u2030',
+  prime: '\u2032',
+  Prime: '\u2033',
+  lsaquo: '\u2039',
+  rsaquo: '\u203A',
+  oline: '\u203E',
+  frasl: '\u2044',
+  euro: '\u20AC',
+  image: '\u2111',
+  weierp: '\u2118',
+  real: '\u211C',
+  trade: '\u2122',
+  alefsym: '\u2135',
+  larr: '\u2190',
+  uarr: '\u2191',
+  rarr: '\u2192',
+  darr: '\u2193',
+  harr: '\u2194',
+  crarr: '\u21B5',
+  lArr: '\u21D0',
+  uArr: '\u21D1',
+  rArr: '\u21D2',
+  dArr: '\u21D3',
+  hArr: '\u21D4',
+  forall: '\u2200',
+  part: '\u2202',
+  exist: '\u2203',
+  empty: '\u2205',
+  nabla: '\u2207',
+  isin: '\u2208',
+  notin: '\u2209',
+  ni: '\u220B',
+  prod: '\u220F',
+  sum: '\u2211',
+  minus: '\u2212',
+  lowast: '\u2217',
+  radic: '\u221A',
+  prop: '\u221D',
+  infin: '\u221E',
+  ang: '\u2220',
+  and: '\u2227',
+  or: '\u2228',
+  cap: '\u2229',
+  cup: '\u222A',
+  'int': '\u222B',
+  there4: '\u2234',
+  sim: '\u223C',
+  cong: '\u2245',
+  asymp: '\u2248',
+  ne: '\u2260',
+  equiv: '\u2261',
+  le: '\u2264',
+  ge: '\u2265',
+  sub: '\u2282',
+  sup: '\u2283',
+  nsub: '\u2284',
+  sube: '\u2286',
+  supe: '\u2287',
+  oplus: '\u2295',
+  otimes: '\u2297',
+  perp: '\u22A5',
+  sdot: '\u22C5',
+  lceil: '\u2308',
+  rceil: '\u2309',
+  lfloor: '\u230A',
+  rfloor: '\u230B',
+  lang: '\u2329',
+  rang: '\u232A',
+  loz: '\u25CA',
+  spades: '\u2660',
+  clubs: '\u2663',
+  hearts: '\u2665',
+  diams: '\u2666'
+};