First commit.

Signed-off-by: Chen Xiao <abigwc@gmail.com>
2026-05-08 14:43:16 +08:00
commit 0b64e2de94
10989 changed files with 2253791 additions and 0 deletions
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+import defineFunction, {ordargument} from "../defineFunction";
+import {makeSpan} from "../buildCommon";
+
+import * as html from "../buildHTML";
+import * as mml from "../buildMathML";
+import type Options from "../Options";
+import type {ParseNode} from "../parseNode";
+
+// Non-mathy text, possibly in a font
+const textFontFamilies: Record<string, string | undefined> = {
+    "\\text": undefined, "\\textrm": "textrm", "\\textsf": "textsf",
+    "\\texttt": "texttt", "\\textnormal": "textrm",
+};
+
+const textFontWeights: Record<string, "textbf" | "textmd"> = {
+    "\\textbf": "textbf",
+    "\\textmd": "textmd",
+};
+
+const textFontShapes: Record<string, "textit" | "textup"> = {
+    "\\textit": "textit",
+    "\\textup": "textup",
+};
+
+const optionsWithFont = (group: ParseNode<"text">, options: Options): Options => {
+    const font = group.font;
+    // Checks if the argument is a font family or a font style.
+    if (!font) {
+        return options;
+    } else if (textFontFamilies[font]) {
+        return options.withTextFontFamily(textFontFamilies[font]);
+    } else if (textFontWeights[font]) {
+        return options.withTextFontWeight(textFontWeights[font]);
+    } else if (font === "\\emph") {
+        return options.fontShape === "textit" ?
+            options.withTextFontShape("textup") :
+            options.withTextFontShape("textit");
+    }
+
+    return options.withTextFontShape(textFontShapes[font] as "textit" | "textup");
+};
+
+defineFunction({
+    type: "text",
+    names: [
+        // Font families
+        "\\text", "\\textrm", "\\textsf", "\\texttt", "\\textnormal",
+        // Font weights
+        "\\textbf", "\\textmd",
+        // Font Shapes
+        "\\textit", "\\textup", "\\emph",
+    ],
+    props: {
+        numArgs: 1,
+        argTypes: ["text"],
+        allowedInArgument: true,
+        allowedInText: true,
+    },
+    handler({parser, funcName}, args) {
+        const body = args[0];
+        return {
+            type: "text",
+            mode: parser.mode,
+            body: ordargument(body),
+            font: funcName,
+        };
+    },
+    htmlBuilder(group, options) {
+        const newOptions = optionsWithFont(group, options);
+        const inner = html.buildExpression(group.body, newOptions, true);
+        return makeSpan(["mord", "text"], inner, newOptions);
+    },
+    mathmlBuilder(group, options) {
+        const newOptions = optionsWithFont(group, options);
+        return mml.buildExpressionRow(group.body, newOptions);
+    },
+});