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9d1374f | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 | import defineFunction, {ordargument} from "../defineFunction";
import defineMacro from "../defineMacro";
import {makeFragment, makeSpan} from "../buildCommon";
import {MathNode} from "../mathMLTree";
import * as html from "../buildHTML";
import * as mml from "../buildMathML";
defineFunction({
type: "phantom",
names: ["\\phantom"],
props: {
numArgs: 1,
allowedInText: true,
},
handler: ({parser}, args) => {
const body = args[0];
return {
type: "phantom",
mode: parser.mode,
body: ordargument(body),
};
},
htmlBuilder: (group, options) => {
const elements = html.buildExpression(
group.body,
options.withPhantom(),
false
);
// \phantom isn't supposed to affect the elements it contains.
// See "color" for more details.
return makeFragment(elements);
},
mathmlBuilder: (group, options) => {
const inner = mml.buildExpression(group.body, options);
return new MathNode("mphantom", inner);
},
});
defineMacro("\\hphantom", "\\smash{\\phantom{#1}}");
defineFunction({
type: "vphantom",
names: ["\\vphantom"],
props: {
numArgs: 1,
allowedInText: true,
},
handler: ({parser}, args) => {
const body = args[0];
return {
type: "vphantom",
mode: parser.mode,
body,
};
},
htmlBuilder: (group, options) => {
const inner = makeSpan(
["inner"],
[html.buildGroup(group.body, options.withPhantom())]);
const fix = makeSpan(["fix"], []);
return makeSpan(
["mord", "rlap"], [inner, fix], options);
},
mathmlBuilder: (group, options) => {
const inner = mml.buildExpression(ordargument(group.body), options);
const phantom = new MathNode("mphantom", inner);
const node = new MathNode("mpadded", [phantom]);
node.setAttribute("width", "0px");
return node;
},
});
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