@tanstack/highlight/dist/languages/go.js

Tiny class-based syntax highlighting for documentation.

import { defineLanguage } from '../core.js';
import { patternTokenizer } from '../internal/patterns.js';
export const go = defineLanguage({
    name: 'go',
    aliases: ['golang'],
    tokenize: patternTokenizer([
        {
            className: (match) => match[0].startsWith('/') ? 'comment' : 'string',
            regex: /\/\/[^\n]*|\/\*[\s\S]*?\*\/|`[\s\S]*?`|"(?:\\.|[^"\\\n])*"|'(?:\\.|[^'\\\n])*'/g,
        },
        {
            className: 'keyword',
            regex: /\b(?:break|case|chan|const|continue|default|defer|else|fallthrough|for|func|go|goto|if|import|interface|map|package|range|return|select|struct|switch|type|var)\b/g,
        },
        { className: 'literal', regex: /\b(?:false|iota|nil|true)\b/g },
        { className: 'type', regex: /\btype\s+([A-Za-z_]\w*)/g, group: 1 },
        {
            className: 'type',
            regex: /\b(?:any|bool|byte|comparable|complex64|complex128|error|float32|float64|int|int8|int16|int32|int64|rune|string|uint|uint8|uint16|uint32|uint64|uintptr)\b/g,
        },
        { className: 'function', regex: /\b[A-Za-z_]\w*(?=\s*\()/g },
        {
            className: 'number',
            regex: /(?:^|[^\w.])((?:0[bB]_?[01](?:_?[01])*|0[oO]_?[0-7](?:_?[0-7])*|0[xX](?:(?:_?[\da-fA-F](?:_?[\da-fA-F])*(?:\.(?:[\da-fA-F](?:_?[\da-fA-F])*)?)?|\.[\da-fA-F](?:_?[\da-fA-F])*)[pP][+-]?\d(?:_?\d)*|_?[\da-fA-F](?:_?[\da-fA-F])*)|\d(?:_?\d)*\.(?:\d(?:_?\d)*)?(?:[eE][+-]?\d(?:_?\d)*)?|\d(?:_?\d)*[eE][+-]?\d(?:_?\d)*|\.\d(?:_?\d)*(?:[eE][+-]?\d(?:_?\d)*)?|\d(?:_?\d)*)(?:i)?)(?![\w.])/g,
            group: 1,
        },
        { className: 'property', regex: /\.\s*([A-Za-z_]\w*)/g, group: 1 },
        {
            className: 'operator',
            regex: /\.\.\.|<<=?|>>=?|&\^=?|:=|<-|\+\+|--|==|!=|<=|>=|&&|\|\||[+\-*/%&|^!<>=~]=?/g,
        },
    ]),
});