app/node_modules/mathjax-full/ts/input/tex/gensymb/GensymbConfiguration.ts

/*************************************************************
 *
 *  Copyright (c) 2021-2022 The MathJax Consortium
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */


/**
 * @fileoverview Configuration file for the gensymb package.
 *
 * @author v.sorge@mathjax.org (Volker Sorge)
 */

import {Configuration} from '../Configuration.js';
import {Symbol} from '../Symbol.js';
import {TexConstant} from '../TexConstants.js';
import {CharacterMap} from '../SymbolMap.js';
import TexParser from '../TexParser.js';


/**
 * Handle characters that are known units.
 * @param {TexParser} parser The current tex parser.
 * @param {Symbol} mchar The parsed symbol.
 */
function mathcharUnit(parser: TexParser, mchar: Symbol) {
  const def = mchar.attributes || {};
  def.mathvariant = TexConstant.Variant.NORMAL;
  def.class = 'MathML-Unit';
  const node = parser.create('token', 'mi', def, mchar.char);
  parser.Push(node);
}


/**
 * gensymb units.
 */
new CharacterMap('gensymb-symbols', mathcharUnit, {
  ohm:            '\u2126',
  degree:         '\u00B0',
  celsius:        '\u2103',
  perthousand:    '\u2030',
  micro:          '\u00B5'
});


export const GensymbConfiguration = Configuration.create(
  'gensymb', {
    handler: {macro: ['gensymb-symbols']},
  }
);