init source

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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.
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# Acorn-JSX
[![Build Status](https://travis-ci.org/RReverser/acorn-jsx.svg?branch=master)](https://travis-ci.org/RReverser/acorn-jsx)
[![NPM version](https://img.shields.io/npm/v/acorn-jsx.svg)](https://www.npmjs.org/package/acorn-jsx)
This is plugin for [Acorn](http://marijnhaverbeke.nl/acorn/) - a tiny, fast JavaScript parser, written completely in JavaScript.
It was created as an experimental alternative, faster [React.js JSX](http://facebook.github.io/react/docs/jsx-in-depth.html) parser.
According to [benchmarks](https://github.com/RReverser/acorn-jsx/blob/master/test/bench.html), Acorn-JSX is 2x faster than official [Esprima-based parser](https://github.com/facebook/esprima) when location tracking is turned on in both (call it "source maps enabled mode"). At the same time, it consumes all the ES6+JSX syntax that can be consumed by Esprima-FB (this is proved by [official tests](https://github.com/RReverser/acorn-jsx/blob/master/test/tests-jsx.js)).
**UPDATE [14-Apr-2015]**: Facebook implementation started [deprecation process](https://github.com/facebook/esprima/issues/111) in favor of Acorn + Acorn-JSX + Babel for parsing and transpiling JSX syntax.
## Transpiler
Please note that this tool only parses source code to JSX AST, which is useful for various language tools and services. If you want to transpile your code to regular ES5-compliant JavaScript with source map, check out the [babel transpiler](https://babeljs.io/) which uses `acorn-jsx` under the hood.
## Usage
Requiring this module provides you with an Acorn plugin that you can use like this:
```javascript
var acorn = require("acorn");
var jsx = require("acorn-jsx");
acorn.Parser.extend(jsx()).parse("my(<jsx/>, 'code');");
```
Note that official spec doesn't support mix of XML namespaces and object-style access in tag names (#27) like in `<namespace:Object.Property />`, so it was deprecated in `acorn-jsx@3.0`. If you still want to opt-in to support of such constructions, you can pass the following option:
```javascript
acorn.Parser.extend(jsx({ allowNamespacedObjects: true }))
```
Also, since most apps use pure React transformer, a new option was introduced that allows to prohibit namespaces completely:
```javascript
acorn.Parser.extend(jsx({ allowNamespaces: false }))
```
Note that by default `allowNamespaces` is enabled for spec compliancy.
## License
This plugin is issued under the [MIT license](./LICENSE).
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'use strict';
const XHTMLEntities = require('./xhtml');
const hexNumber = /^[\da-fA-F]+$/;
const decimalNumber = /^\d+$/;
const acorn = require("acorn");
const tt = acorn.tokTypes;
const TokContext = acorn.TokContext;
const tokContexts = acorn.tokContexts;
const TokenType = acorn.TokenType;
const isNewLine = acorn.isNewLine;
const isIdentifierStart = acorn.isIdentifierStart;
const isIdentifierChar = acorn.isIdentifierChar;
const tc_oTag = new TokContext('<tag', false);
const tc_cTag = new TokContext('</tag', false);
const tc_expr = new TokContext('<tag>...</tag>', true, true);
const tok = {
jsxName: new TokenType('jsxName'),
jsxText: new TokenType('jsxText', {beforeExpr: true}),
jsxTagStart: new TokenType('jsxTagStart'),
jsxTagEnd: new TokenType('jsxTagEnd')
}
tok.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;
};
tok.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;
}
};
// 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);
}
};
module.exports.tokTypes = tok;
function plugin(options, Parser) {
return class extends Parser {
// 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;
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(value) {
let node = this.parseLiteral(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(this.value);
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);
}
}
};
}
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{
"_args": [
[
"acorn-jsx@5.0.2",
"/home/app"
]
],
"_development": true,
"_from": "acorn-jsx@5.0.2",
"_id": "acorn-jsx@5.0.2",
"_inBundle": false,
"_integrity": "sha512-tiNTrP1MP0QrChmD2DdupCr6HWSFeKVw5d/dHTu4Y7rkAkRhU/Dt7dphAfIUyxtHpl/eBVip5uTNSpQJHylpAw==",
"_location": "/acorn-jsx",
"_phantomChildren": {},
"_requested": {
"type": "version",
"registry": true,
"raw": "acorn-jsx@5.0.2",
"name": "acorn-jsx",
"escapedName": "acorn-jsx",
"rawSpec": "5.0.2",
"saveSpec": null,
"fetchSpec": "5.0.2"
},
"_requiredBy": [
"/espree"
],
"_resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.0.2.tgz",
"_spec": "5.0.2",
"_where": "/home/app",
"bugs": {
"url": "https://github.com/RReverser/acorn-jsx/issues"
},
"description": "Alternative, faster React.js JSX parser",
"devDependencies": {
"acorn": "^7.0.0"
},
"homepage": "https://github.com/RReverser/acorn-jsx",
"license": "MIT",
"maintainers": [
{
"name": "Ingvar Stepanyan",
"email": "me@rreverser.com",
"url": "http://rreverser.com/"
}
],
"name": "acorn-jsx",
"peerDependencies": {
"acorn": "^6.0.0 || ^7.0.0"
},
"repository": {
"type": "git",
"url": "git+https://github.com/RReverser/acorn-jsx.git"
},
"scripts": {
"test": "node test/run.js"
},
"version": "5.0.2"
}
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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'
};