如何在评论中为 "todo" 创建规则

Question

我针对自定义语言尝试了这些规则，其中的注释类似于 C#。

我想在评论（尤其是单行评论）中匹配单词“todo”。我在这里的尝试失败了。

谁能指导我？

const options = {
    defaultToken: "",
    tokenPostfix: ".dbl",

    brackets: [
        { open: "{", close: "}", token: "delimiter.curly" },
        { open: "[", close: "]", token: "delimiter.square" },
        { open: "(", close: ")", token: "delimiter.parenthesis" },
        { open: "<", close: ">", token: "delimiter.angle" },
    ],

    keywords: [
        "Indexes",
        // ...
    ],

    symbols: /[=><!~?:&|+\-*\/\^%]+/,

    // escape sequences
    escapes: /\(?:[\"'`])/,

    // The main tokenizer for our languages
    tokenizer: {
        root: [
            { include: '@comments' },
            { include: '@whitespace' },
            { include: '@strings_single' },
            { include: '@strings_double' },

            // identifiers and keywords
            [
                /[a-zA-Z_]\w*/i,
                {
                    cases: {
                        "@keywords": { token: "keyword.[=11=]", next: "@qualified" },
                        "@default": { token: "identifier.[=11=]", next: "@qualified" },
                    },
                },
            ],

            // delimiters and operators
            [
                /}/,
                {
                    cases: {
                        "@default": "@brackets",
                    },
                },
            ],

            [/[{}()\[\]]/, "@brackets"],

            [
                /@symbols/,
                {
                    cases: {
                        "@operators": "delimiter",
                        "@default": "",
                    },
                },
            ],

            // numbers
            [/[0-9_]*\.[0-9_]+([eE][\-+]?\d+)?[fFdD]?/, "number.float"],
            [/0[xX][0-9a-fA-F_]+/, "number.hex"],
            [/0[bB][01_]+/, "number.hex"], // binary: use same theme style as hex
            [/[0-9_]+/, "number"],

            // delimiter: after number because of .\d floats
            [/[;,.]/, "delimiter"],
        ],

        whitespace: [
            [/\s+/, "white-spaces"],
        ],

        qualified: [
            [
                /[a-zA-Z_][\w]*/,
                {
                    cases: {
                        "@default": { token: "identifier.[=11=]", next: "@pop" },
                    },
                },
            ],
            [/\./, "delimiter"],
            ["", "", "@pop"],
        ],

        comments: [
            [/\/\//, "comment", "@comment_single"],
            [/\/\*/, 'comment.quote', '@comment_quote']
        ],

        comment_single: [
            [/.*/, 'comment', '@pop'],
            [/todo/i, 'keyword.todo'],
        ],
   //....

Answer 1

我设计了一个解决方案。

        comments: [
            [/\/\//, "comment", "@comment_single"],
            [/\/\*/, 'comment.quote', '@comment_quote']
        ],

        comment_single: [
            [/\btodo\b/, 'keyword.todo'],
            [/.$/, 'comment', "@pop"],
            [/./, 'comment'],
        ],

        comment_quote: [
            [/\*\//, 'comment.quote', '@pop'],
            [/\btodo\b/, 'keyword.todo'],
            [/((?!\btodo\b).)*/, 'comment.quote'],
            [/[^*/]+/, 'comment.quote'],
            [/./, 'comment.quote'],
        ],

如何在评论中为 "todo" 创建规则

How to create rule for "todo" in a comment

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