add initial marp implementation with sample content and build configuration

node_modules/mathjax-full/ts/input/tex/mathtools/MathtoolsConfiguration.ts

@@ -0,0 +1,134 @@
+/*************************************************************
+ *  Copyright (c) 2020-2022 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 mathtools package.
+ *
+ * @author v.sorge@mathjax.org (Volker Sorge)
+ * @author dpvc@mathjax.org (Davide P. Cervone)
+ */
+
+import {Configuration} from '../Configuration.js';
+import {CommandMap} from '../SymbolMap.js';
+import NodeUtil from '../NodeUtil.js';
+import {expandable} from '../../../util/Options.js';
+import {ParserConfiguration} from '../Configuration.js';
+import {TeX} from '../../tex.js';
+import ParseOptions from '../ParseOptions.js';
+
+import './MathtoolsMappings.js';
+import {MathtoolsUtil} from './MathtoolsUtil.js';
+import {MathtoolsTagFormat} from './MathtoolsTags.js';
+import {MultlinedItem} from './MathtoolsItems.js';
+
+/**
+ * The name of the paried-delimiters command map.
+ */
+export const PAIREDDELIMS = 'mathtools-paired-delims';
+
+/**
+ * Create the paired-delimiters command map, and link it into the configuration.
+ * @param {ParserConfiguration} config   The current configuration.
+ */
+function initMathtools(config: ParserConfiguration) {
+  new CommandMap(PAIREDDELIMS, {}, {});
+  config.append(Configuration.local({handler: {macro: [PAIREDDELIMS]}, priority: -5}));
+}
+
+/**
+ * Add any pre-defined paired delimiters, and subclass the configured tag format.
+ * @param {ParserConfiguration} config   The current configuration.
+ * @param {TeX} jac                      The TeX input jax
+ */
+function configMathtools(config: ParserConfiguration, jax: TeX<any, any, any>) {
+  const parser = jax.parseOptions;
+  const pairedDelims = parser.options.mathtools.pairedDelimiters;
+  for (const cs of Object.keys(pairedDelims)) {
+    MathtoolsUtil.addPairedDelims(parser, cs, pairedDelims[cs]);
+  }
+  MathtoolsTagFormat(config, jax);
+}
+
+/**
+ * A filter to fix up mmultiscripts elements.
+ * @param {ParseOptions} data   The parse options.
+ */
+export function fixPrescripts({data}: {data: ParseOptions}) {
+  for (const node of data.getList('mmultiscripts')) {
+    if (!node.getProperty('fixPrescript')) continue;
+    const childNodes = NodeUtil.getChildren(node);
+    let n = 0;
+    for (const i of [1, 2]) {
+      if (!childNodes[i]) {
+        NodeUtil.setChild(node, i, data.nodeFactory.create('node', 'none'));
+        n++;
+      }
+    }
+    for (const i of [4, 5]) {
+      if (NodeUtil.isType(childNodes[i], 'mrow') && NodeUtil.getChildren(childNodes[i]).length === 0) {
+        NodeUtil.setChild(node, i, data.nodeFactory.create('node', 'none'));
+      }
+    }
+    if (n === 2) {
+      childNodes.splice(1, 2);
+    }
+  }
+}
+
+/**
+ * The configuration for the mathtools package
+ */
+export const MathtoolsConfiguration = Configuration.create(
+  'mathtools', {
+    handler: {
+      macro: ['mathtools-macros', 'mathtools-delimiters'],
+      environment: ['mathtools-environments'],
+      delimiter: ['mathtools-delimiters'],
+      character: ['mathtools-characters']
+    },
+    items: {
+      [MultlinedItem.prototype.kind]: MultlinedItem
+    },
+    init: initMathtools,
+    config: configMathtools,
+    postprocessors: [[fixPrescripts, -6]],
+    options: {
+      mathtools: {
+        'multlinegap': '1em',                   // horizontal space for multlined environments
+        'multlined-pos': 'c',                   // default alignment for multlined environments
+        'firstline-afterskip': '',              // space for first line of multlined (overrides multlinegap)
+        'lastline-preskip': '',                 // space for last line of multlined (overrides multlinegap)
+        'smallmatrix-align': 'c',               // default alignment for smallmatrix environments
+        'shortvdotsadjustabove': '.2em',        // space to remove above \shortvdots
+        'shortvdotsadjustbelow': '.2em',        // space to remove below \shortvdots
+        'centercolon': false,                   // true to have colon automatically centered
+        'centercolon-offset': '.04em',          // vertical adjustment for centered colons
+        'thincolon-dx': '-.04em',               // horizontal adjustment for thin colons (e.g., \coloneqq)
+        'thincolon-dw': '-.08em',               // width adjustment for thin colons
+        'use-unicode': false,                   // true to use unicode characters rather than multi-character
+                                                //   version for \coloneqq, etc., when possible
+        'prescript-sub-format': '',             // format for \prescript subscript
+        'prescript-sup-format': '',             // format for \prescript superscript
+        'prescript-arg-format': '',             // format for \prescript base
+        'allow-mathtoolsset': true,             // true to allow \mathtoolsset to change settings
+        pairedDelimiters: expandable({}),       // predefined paired delimiters
+                                                //     name: [left, right, body, argcount, pre, post]
+        tagforms: expandable({}),               // tag form definitions
+                                                //     name: [left, right, format]
+       }
+    }
+  }
+);