Highlighting LaTeX in Monaco Editor
Overview I had the opportunity to highlight LaTeX in Monaco Editor, so here are my notes.
This is a follow-up to the following article that targeted Ace Editor.
I hope this serves as a useful reference.
Screenshot Demo Site https://nakamura196.github.io/ace_latex/monaco/
Repository https://github.com/nakamura196/ace_latex/
Source Code <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <title>Monaco Editor Demo</title> <link href="https://cdn.jsdelivr.net/npm/monaco-editor@0.40.0/min/vs/editor/editor.main.min.css" rel="stylesheet" /> </head> <body> <h2>Monaco Editor LaTeX</h2> <div id="container" style="width: 100%; height: 600px; border: 1px solid lightgray" ></div> <script src="https://cdn.jsdelivr.net/npm/monaco-editor@0.40.0/min/vs/loader.min.js"></script> <script> require.config({ paths: { vs: "https://cdn.jsdelivr.net/npm/monaco-editor@0.40.0/min/vs", }, }); require(["vs/editor/editor.main"], function () { // Register a new language monaco.languages.register({ id: "latex" }); // Register a tokens provider for the language monaco.languages.setMonarchTokensProvider("latex", { tokenizer: { root: [ [/(\\[a-zA-Z]+)/, "command"], // LaTeX commands [/(\\[\w\u3000-\u9FFF]+)/, "note"], // LaTeX commands [/(\{)/, "brace"], [/(\})/, "brace"], [/(\[)/, "bracket"], [/(\])/, "bracket"], [/(document|dvips)/, "keyword"], // LaTeX keywords [/(%.*)/, "comment"], // Comments ], }, }); // Define a new theme that contains only rules that match this language monaco.editor.defineTheme("myTheme", { base: "vs", inherit: true, rules: [ { token: "command", foreground: "#F44336" }, // LaTeX commands in red { token: "note", foreground: "#2196F3" }, // Notes in blue { token: "brace", foreground: "FF00FF" }, // Braces in magenta { token: "bracket", foreground: "00FFFF" }, // Brackets in cyan { token: "keyword", foreground: "#4CAF50" }, // Keywords in green { token: "comment", foreground: "#9E9E9E" }, // Comments in gray ], colors: {}, }); monaco.editor.create(document.getElementById("container"), { value: getCode(), language: "latex", theme: "myTheme", wordWrap: true, }); }); function getCode() { return `\\documentclass{tbook} \\usepackage{hiragino,cid} \\usepackage[dvips]{graphics} \\usepackage{font} % \\見開き \\begin{document} テキスト \\書名{（サンプル）}テキスト 長いテキスト長いテキスト長いテキスト長いテキスト長いテキスト長いテキスト長いテキスト長いテキスト長いテキスト長いテキスト長いテキスト長いテキスト長いテキスト長いテキスト長いテキスト\\右注{（あああ）}長いテキスト長いテキスト \\右注{（サンプル）}テキスト \\end{document}`; } </script> </body> </html> The following page was helpful for configuring custom languages.
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July 10, 2023 · Updated: July 10, 2023 · 2 min · Nakamura
