add initial marp implementation with sample content and build configuration

node_modules/mathjax-full/ts/output/common/Wrappers/mtext.ts

@@ -0,0 +1,86 @@
+/*************************************************************
+ *
+ *  Copyright (c) 2019-2022 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  Implements the CommonMtext wrapper mixin for the MmlMtext object
+ *
+ * @author dpvc@mathjax.org (Davide Cervone)
+ */
+
+import {AnyWrapper, WrapperConstructor, Constructor} from '../Wrapper.js';
+
+/*****************************************************************/
+/**
+ * The CommonMtext interface
+ */
+export interface CommonMtext extends AnyWrapper {
+}
+
+/**
+ * Shorthand for the CommonMtext constructor
+ */
+export type MtextConstructor = Constructor<CommonMtext>;
+
+/*****************************************************************/
+/**
+ *  The CommonMtext wrapper mixin for the MmlMtext object
+ *
+ * @template T  The Wrapper class constructor type
+ */
+export function CommonMtextMixin<T extends WrapperConstructor>(Base: T): MtextConstructor & T {
+
+  return class extends Base {
+
+    /**
+     * The font-family, weight, and style to use for the variants when mtextInheritFont
+     * is true or mtextFont is specified.  If not in this list, then the font's
+     * getCssFont() is called.  When the font family is not specified (as in these four),
+     * the inherited or specified font is used.
+     */
+    public static INHERITFONTS = {
+      normal: ['', false, false],
+      bold: ['', false, true],
+      italic: ['', true, false],
+      'bold-italic': ['', true, true]
+    };
+
+    /**
+     * @override
+     */
+    protected getVariant() {
+      const options = this.jax.options;
+      const data = this.jax.math.outputData;
+      //
+      //  If the font is to be inherited from the surrounding text, check the mathvariant
+      //  and see if it allows for inheritance. If so, set the variant appropriately,
+      //  otherwise get the usual variant.
+      //
+      const merror = ((!!data.merrorFamily || !!options.merrorFont) && this.node.Parent.isKind('merror'));
+      if (!!data.mtextFamily || !!options.mtextFont || merror) {
+        const variant = this.node.attributes.get('mathvariant') as string;
+        const font = (this.constructor as any).INHERITFONTS[variant] || this.jax.font.getCssFont(variant);
+        const family = font[0] || (merror ? data.merrorFamily || options.merrorFont :
+                                            data.mtextFamily || options.mtextFont);
+        this.variant = this.explicitVariant(family, font[2] ? 'bold' : '', font[1] ? 'italic' : '');
+        return;
+      }
+      super.getVariant();
+    }
+
+  };
+
+}