(code: string)
| 31 | |
| 32 | // 语法高亮函数,先提取 token 再转义和高亮 |
| 33 | function highlightSyntax(code: string): string { |
| 34 | // 构建正则模式,包含更多 token 类型(在原始文本上匹配) |
| 35 | const pattern = new RegExp( |
| 36 | '(' + |
| 37 | // 1. 字符串(双引号、单引号、模板字符串) |
| 38 | '"([^"\\\\]|\\\\.)*"|' + |
| 39 | "'([^'\\\\]|\\\\.)*'|" + |
| 40 | '`([^`\\\\]|\\\\.)*`|' + |
| 41 | // 2. 注释(单行和多行) |
| 42 | '//[^\\n]*|' + |
| 43 | '/\\*[\\s\\S]*?\\*/|' + |
| 44 | // 3. 装饰器 |
| 45 | '@[a-zA-Z_$][\\w$]*|' + |
| 46 | // 4. 数字(包括小数、十六进制、科学计数法) |
| 47 | '\\b0[xX][0-9a-fA-F]+\\b|' + |
| 48 | '\\b\\d+\\.?\\d*(?:[eE][+-]?\\d+)?\\b|' + |
| 49 | // 5. TypeScript/JavaScript 关键字 |
| 50 | '\\b(?:' + |
| 51 | keywords + |
| 52 | '|' + |
| 53 | tsKeywords + |
| 54 | '|' + |
| 55 | literals + |
| 56 | ')\\b|' + |
| 57 | // 6. TypeScript 内置类型 |
| 58 | '\\b(?:' + |
| 59 | tsTypes + |
| 60 | ')\\b|' + |
| 61 | // 7. 箭头函数 |
| 62 | '=>|' + |
| 63 | // 8. 函数调用(函数名后跟括号) |
| 64 | '\\b[a-zA-Z_$][\\w$]*(?=\\()|' + |
| 65 | // 9. 属性访问 |
| 66 | '\\.[a-zA-Z_$][\\w$]*|' + |
| 67 | // 10. 运算符和特殊符号 |
| 68 | '[+\\-*/%&|^!~<>=?:]+|' + |
| 69 | '[{}\\[\\]();,.]' + |
| 70 | ')', |
| 71 | 'g' |
| 72 | ) |
| 73 | |
| 74 | const tokens: string[] = [] |
| 75 | let lastIndex = 0 |
| 76 | let match: RegExpExecArray | null |
| 77 | while ((match = pattern.exec(code)) !== null) { |
| 78 | if (match.index > lastIndex) { |
| 79 | const gap = code.slice(lastIndex, match.index) |
| 80 | // 将间隙按空白符分割,保留空白符 |
| 81 | tokens.push(...gap.split(/(\s+)/)) |
| 82 | } |
| 83 | tokens.push(match[0]) |
| 84 | lastIndex = pattern.lastIndex |
| 85 | } |
| 86 | if (lastIndex < code.length) { |
| 87 | tokens.push(...code.slice(lastIndex).split(/(\s+)/)) |
| 88 | } |
| 89 | |
| 90 | const highlighted = tokens |
no test coverage detected