Brunobkr/llama.cpp_AlgMor24_github

1// Horizontal overlap functions2import defineFunction from "../defineFunction";3import {makeSpan, makeVList} from "../buildCommon";4import {MathNode} from "../mathMLTree";5import {stretchyMathML, stretchySvg} from "../stretchy";6 7import * as html from "../buildHTML";8import * as mml from "../buildMathML";9 10import type {ParseNode} from "../parseNode";11 12defineFunction({13    type: "accentUnder",14    names: [15        "\\underleftarrow", "\\underrightarrow", "\\underleftrightarrow",16        "\\undergroup", "\\underlinesegment", "\\utilde",17    ],18    props: {19        numArgs: 1,20    },21    handler: ({parser, funcName}, args) => {22        const base = args[0];23        return {24            type: "accentUnder",25            mode: parser.mode,26            label: funcName,27            base: base,28        };29    },30    htmlBuilder: (group: ParseNode<"accentUnder">, options) => {31        // Treat under accents much like underlines.32        const innerGroup = html.buildGroup(group.base, options);33 34        const accentBody = stretchySvg(group, options);35        const kern = group.label === "\\utilde" ? 0.12 : 0;36 37        // Generate the vlist, with the appropriate kerns38        const vlist = makeVList({39            positionType: "top",40            positionData: innerGroup.height,41            children: [42                {type: "elem", elem: accentBody, wrapperClasses: ["svg-align"]},43                {type: "kern", size: kern},44                {type: "elem", elem: innerGroup},45            ],46        }, options);47 48        return makeSpan(["mord", "accentunder"], [vlist], options);49    },50    mathmlBuilder: (group, options) => {51        const accentNode = stretchyMathML(group.label);52        const node = new MathNode(53            "munder",54            [mml.buildGroup(group.base, options), accentNode]55        );56        node.setAttribute("accentunder", "true");57        return node;58    },59});60