react-native-mathjax-html-to-svg
Version:
React Native component to display mathematics in html using MathJax. Uses [MathJax](https://github.com/mathjax/)
50 lines (49 loc) • 1.98 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var BaseMethods_js_1 = require("../base/BaseMethods.js");
var MmlNode_js_1 = require("../../../core/MmlTree/MmlNode.js");
var TexError_js_1 = require("../TexError.js");
var BraketMethods = {};
BraketMethods.Macro = BaseMethods_js_1.default.Macro;
BraketMethods.Braket = function (parser, _name, open, close, stretchy, barmax) {
var next = parser.GetNext();
if (next === '') {
throw new TexError_js_1.default('MissingArgFor', 'Missing argument for %1', parser.currentCS);
}
var single = true;
if (next === '{') {
parser.i++;
single = false;
}
parser.Push(parser.itemFactory.create('braket')
.setProperties({ barmax: barmax, barcount: 0, open: open,
close: close, stretchy: stretchy, single: single }));
};
BraketMethods.Bar = function (parser, name) {
var c = name === '|' ? '|' : '\u2225';
var top = parser.stack.Top();
if (top.kind !== 'braket' ||
top.getProperty('barcount') >= top.getProperty('barmax')) {
var mml = parser.create('token', 'mo', { texClass: MmlNode_js_1.TEXCLASS.ORD, stretchy: false }, c);
parser.Push(mml);
return;
}
if (c === '|' && parser.GetNext() === '|') {
parser.i++;
c = '\u2225';
}
var stretchy = top.getProperty('stretchy');
if (!stretchy) {
var node_1 = parser.create('token', 'mo', { stretchy: false, braketbar: true }, c);
parser.Push(node_1);
return;
}
var node = parser.create('node', 'TeXAtom', [], { texClass: MmlNode_js_1.TEXCLASS.CLOSE });
parser.Push(node);
top.setProperty('barcount', top.getProperty('barcount') + 1);
node = parser.create('token', 'mo', { stretchy: true, braketbar: true }, c);
parser.Push(node);
node = parser.create('node', 'TeXAtom', [], { texClass: MmlNode_js_1.TEXCLASS.OPEN });
parser.Push(node);
};
exports.default = BraketMethods;