add initial marp implementation with sample content and build configuration

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

@@ -0,0 +1,287 @@
+/*************************************************************
+ *
+ *  Copyright (c) 2017-2022 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 CommonMunderover wrapper mixin for the MmlMunderover object
+ *                and the special cases CommonMunder and CommonMsup
+ *
+ * @author dpvc@mathjax.org (Davide Cervone)
+ */
+
+import {AnyWrapper, Constructor} from '../Wrapper.js';
+import {CommonScriptbase, ScriptbaseConstructor} from './scriptbase.js';
+import {MmlMunderover, MmlMunder, MmlMover} from '../../../core/MmlTree/MmlNodes/munderover.js';
+import {BBox} from '../../../util/BBox.js';
+
+/*****************************************************************/
+/**
+ * The CommonMunder interface
+ *
+ * @template W  The child-node Wrapper class
+ */
+export interface CommonMunder<W extends AnyWrapper> extends CommonScriptbase<W> {
+}
+
+/**
+ * Shorthand for the CommonMunder constructor
+ *
+ * @template W  The child-node Wrapper class
+ */
+export type MunderConstructor<W extends AnyWrapper> = Constructor<CommonMunder<W>>;
+
+/*****************************************************************/
+/**
+ * The CommonMunder wrapper mixin for the MmlMunder object
+ *
+ * @template W  The child-node Wrapper class
+ * @template T  The Wrapper class constructor type
+ */
+export function CommonMunderMixin<
+  W extends AnyWrapper,
+  T extends ScriptbaseConstructor<W>
+>(Base: T): MunderConstructor<W> & T {
+
+  return class extends Base {
+
+    /**
+     * @override
+     */
+    public get scriptChild() {
+      return this.childNodes[(this.node as MmlMunder).under];
+    }
+
+    /**
+     * @override
+     * @constructor
+     */
+    constructor(...args: any[]) {
+      super(...args);
+      this.stretchChildren();
+    }
+
+    /**
+     * @override
+     */
+    public computeBBox(bbox: BBox, recompute: boolean = false) {
+      if (this.hasMovableLimits()) {
+        super.computeBBox(bbox, recompute);
+        return;
+      }
+      bbox.empty();
+      const basebox = this.baseChild.getOuterBBox();
+      const underbox = this.scriptChild.getOuterBBox();
+      const v = this.getUnderKV(basebox, underbox)[1];
+      const delta = (this.isLineBelow ? 0 : this.getDelta(true));
+      const [bw, uw] = this.getDeltaW([basebox, underbox], [0, -delta]);
+      bbox.combine(basebox, bw, 0);
+      bbox.combine(underbox, uw, v);
+      bbox.d += this.font.params.big_op_spacing5;
+      bbox.clean();
+      this.setChildPWidths(recompute);
+    }
+
+  };
+
+}
+
+/*****************************************************************/
+/**
+ * The CommonMover interface
+ *
+ * @template W  The child-node Wrapper class
+ */
+export interface CommonMover<W extends AnyWrapper> extends CommonScriptbase<W> {
+}
+
+/**
+ * Shorthand for the CommonMover constructor
+ *
+ * @template W  The child-node Wrapper class
+ */
+export type MoverConstructor<W extends AnyWrapper> = Constructor<CommonMover<W>>;
+
+/*****************************************************************/
+/**
+ * The CommonMover wrapper mixin for the MmlMover object
+ *
+ * @template W  The child-node Wrapper class
+ * @template T  The Wrapper class constructor type
+ */
+export function CommonMoverMixin<
+  W extends AnyWrapper,
+  T extends ScriptbaseConstructor<W>
+>(Base: T): MoverConstructor<W> & T {
+
+  return class extends Base {
+
+    /**
+     * @override
+     */
+    public get scriptChild() {
+      return this.childNodes[(this.node as MmlMover).over];
+    }
+
+    /**
+     * @override
+     * @constructor
+     */
+    constructor(...args: any[]) {
+      super(...args);
+      this.stretchChildren();
+    }
+
+    /**
+     * @override
+     */
+    public computeBBox(bbox: BBox) {
+      if (this.hasMovableLimits()) {
+        super.computeBBox(bbox);
+        return;
+      }
+      bbox.empty();
+      const basebox = this.baseChild.getOuterBBox();
+      const overbox = this.scriptChild.getOuterBBox();
+      if (this.node.attributes.get('accent')) {
+        basebox.h = Math.max(basebox.h, this.font.params.x_height * basebox.scale);
+      }
+      const u = this.getOverKU(basebox, overbox)[1];
+      const delta = (this.isLineAbove ? 0 : this.getDelta());
+      const [bw, ow] = this.getDeltaW([basebox, overbox], [0, delta]);
+      bbox.combine(basebox, bw, 0);
+      bbox.combine(overbox, ow, u);
+      bbox.h += this.font.params.big_op_spacing5;
+      bbox.clean();
+    }
+
+  };
+
+}
+
+/*****************************************************************/
+/**
+ * The CommonMunderover interface
+ *
+ * @template W  The child-node Wrapper class
+ */
+export interface CommonMunderover<W extends AnyWrapper> extends CommonScriptbase<W> {
+
+  /*
+   * The wrapped under node
+   */
+  readonly underChild: W;
+
+  /*
+   * The wrapped overder node
+   */
+  readonly overChild: W;
+
+}
+
+/**
+ * Shorthand for the CommonMunderover constructor
+ *
+ * @template W  The child-node Wrapper class
+ */
+export type MunderoverConstructor<W extends AnyWrapper> = Constructor<CommonMunderover<W>>;
+
+/*****************************************************************/
+/*
+ * The CommonMunderover wrapper for the MmlMunderover object
+ *
+ * @template W  The child-node Wrapper class
+ * @template T  The Wrapper class constructor type
+ */
+export function CommonMunderoverMixin<
+  W extends AnyWrapper,
+  T extends ScriptbaseConstructor<W>
+>(Base: T): MunderoverConstructor<W> & T {
+
+  return class extends Base {
+
+    /*
+     * @return {W}   The wrapped under node
+     */
+    public get underChild() {
+      return this.childNodes[(this.node as MmlMunderover).under];
+    }
+
+    /*
+     * @return {W}   The wrapped overder node
+     */
+    public get overChild() {
+      return this.childNodes[(this.node as MmlMunderover).over];
+    }
+
+    /*
+     * Needed for movablelimits
+     *
+     * @override
+     */
+    public get subChild() {
+      return this.underChild;
+    }
+
+    /*
+     * Needed for movablelimits
+     *
+     * @override
+     */
+    public get supChild() {
+      return this.overChild;
+    }
+
+    /**
+     * @override
+     * @constructor
+     */
+    constructor(...args: any[]) {
+      super(...args);
+      this.stretchChildren();
+    }
+
+    /**
+     * @override
+     */
+    public computeBBox(bbox: BBox) {
+      if (this.hasMovableLimits()) {
+        super.computeBBox(bbox);
+        return;
+      }
+      bbox.empty();
+      const overbox = this.overChild.getOuterBBox();
+      const basebox = this.baseChild.getOuterBBox();
+      const underbox = this.underChild.getOuterBBox();
+      if (this.node.attributes.get('accent')) {
+        basebox.h = Math.max(basebox.h, this.font.params.x_height * basebox.scale);
+      }
+      const u = this.getOverKU(basebox, overbox)[1];
+      const v = this.getUnderKV(basebox, underbox)[1];
+      const delta = this.getDelta();
+      const [bw, uw, ow] = this.getDeltaW([basebox, underbox, overbox],
+                                          [0, this.isLineBelow ? 0 : -delta, this.isLineAbove ? 0 : delta]);
+      bbox.combine(basebox, bw, 0);
+      bbox.combine(overbox, ow, u);
+      bbox.combine(underbox, uw, v);
+      const z = this.font.params.big_op_spacing5;
+      bbox.h += z;
+      bbox.d += z;
+      bbox.clean();
+    }
+
+  };
+
+}