114 lines
3.9 KiB
TypeScript
114 lines
3.9 KiB
TypeScript
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/*************************************************************
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*
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* Copyright (c) 2018-2022 The MathJax Consortium
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @fileoverview Configuration file for the boldsymbol package.
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*
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* @author v.sorge@mathjax.org (Volker Sorge)
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*/
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import {MmlNode} from '../../../core/MmlTree/MmlNode.js';
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import {Configuration} from '../Configuration.js';
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import NodeUtil from '../NodeUtil.js';
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import TexParser from '../TexParser.js';
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import {TexConstant} from '../TexConstants.js';
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import {CommandMap} from '../SymbolMap.js';
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import {ParseMethod} from '../Types.js';
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import {NodeFactory} from '../NodeFactory.js';
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import ParseOptions from '../ParseOptions.js';
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let BOLDVARIANT: {[key: string]: string} = {};
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BOLDVARIANT[TexConstant.Variant.NORMAL] = TexConstant.Variant.BOLD;
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BOLDVARIANT[TexConstant.Variant.ITALIC] = TexConstant.Variant.BOLDITALIC;
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BOLDVARIANT[TexConstant.Variant.FRAKTUR] = TexConstant.Variant.BOLDFRAKTUR;
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BOLDVARIANT[TexConstant.Variant.SCRIPT] = TexConstant.Variant.BOLDSCRIPT;
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BOLDVARIANT[TexConstant.Variant.SANSSERIF] = TexConstant.Variant.BOLDSANSSERIF;
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BOLDVARIANT['-tex-calligraphic'] = '-tex-bold-calligraphic';
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BOLDVARIANT['-tex-oldstyle'] = '-tex-bold-oldstyle';
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BOLDVARIANT['-tex-mathit'] = TexConstant.Variant.BOLDITALIC;
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// Namespace
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export let BoldsymbolMethods: Record<string, ParseMethod> = {};
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/**
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* Parse function for boldsymbol macro.
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* @param {TexParser} parser The current tex parser.
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* @param {string} name The name of the macro.
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*/
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BoldsymbolMethods.Boldsymbol = function(parser: TexParser, name: string) {
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let boldsymbol = parser.stack.env['boldsymbol'];
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parser.stack.env['boldsymbol'] = true;
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let mml = parser.ParseArg(name);
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parser.stack.env['boldsymbol'] = boldsymbol;
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parser.Push(mml);
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};
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new CommandMap('boldsymbol', {boldsymbol: 'Boldsymbol'}, BoldsymbolMethods);
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/**
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* Creates token nodes in bold font if possible.
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* @param {NodeFactory} factory The current node factory.
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* @param {string} kind The type of token node to create.
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* @param {any} def Properties for the node.
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* @param {string} text The text content.
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* @return {MmlNode} The generated token node.
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*/
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export function createBoldToken(factory: NodeFactory, kind: string,
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def: any, text: string): MmlNode {
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let token = NodeFactory.createToken(factory, kind, def, text);
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if (kind !== 'mtext' &&
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factory.configuration.parser.stack.env['boldsymbol']) {
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NodeUtil.setProperty(token, 'fixBold', true);
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factory.configuration.addNode('fixBold', token);
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}
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return token;
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}
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/**
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* Postprocessor to rewrite token nodes to bold font, if possible.
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* @param {ParseOptions} data The parse options.
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*/
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export function rewriteBoldTokens(arg: {data: ParseOptions}) {
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for (let node of arg.data.getList('fixBold')) {
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if (NodeUtil.getProperty(node, 'fixBold')) {
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let variant = NodeUtil.getAttribute(node, 'mathvariant') as string;
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if (variant == null) {
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NodeUtil.setAttribute(node, 'mathvariant', TexConstant.Variant.BOLD);
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} else {
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NodeUtil.setAttribute(node,
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'mathvariant', BOLDVARIANT[variant] || variant);
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}
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NodeUtil.removeProperties(node, 'fixBold');
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}
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}
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}
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export const BoldsymbolConfiguration = Configuration.create(
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'boldsymbol', {
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handler: {macro: ['boldsymbol']},
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nodes: {'token': createBoldToken},
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postprocessors: [rewriteBoldTokens]
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}
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);
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