(source_text, options)
| 8 | * 内联 CSS 美化器（从 beautify-worker.js 移入，避免 Worker 在内容脚本中因相对路径失败） |
| 9 | */ |
| 10 | let cssBeautify = (source_text, options) => { |
| 11 | options = options || {}; |
| 12 | let indentSize = options.indent_size || 4; |
| 13 | let indentCharacter = options.indent_char || ' '; |
| 14 | if (typeof indentSize === "string") indentSize = parseInt(indentSize, 10); |
| 15 | |
| 16 | let whiteRe = /^\s+$/; |
| 17 | let pos = -1, ch; |
| 18 | let next = () => { ch = source_text.charAt(++pos); return ch; }; |
| 19 | let peek = () => source_text.charAt(pos + 1); |
| 20 | |
| 21 | let eatString = (comma) => { |
| 22 | let start = pos; |
| 23 | while (next()) { |
| 24 | if (ch === "\\") { next(); next(); } |
| 25 | else if (ch === comma) { break; } |
| 26 | else if (ch === "\n") { break; } |
| 27 | } |
| 28 | return source_text.substring(start, pos + 1); |
| 29 | }; |
| 30 | |
| 31 | let eatWhitespace = () => { let start = pos; while (whiteRe.test(peek())) pos++; return pos !== start; }; |
| 32 | let skipWhitespace = () => { let start = pos; do {} while (whiteRe.test(next())); return pos !== start + 1; }; |
| 33 | |
| 34 | let eatComment = () => { |
| 35 | let start = pos; next(); |
| 36 | while (next()) { if (ch === "*" && peek() === "/") { pos++; break; } } |
| 37 | return source_text.substring(start, pos + 1); |
| 38 | }; |
| 39 | |
| 40 | let lookBack = (str) => source_text.substring(pos - str.length, pos).toLowerCase() === str; |
| 41 | |
| 42 | let indentString = source_text.match(/^[\r\n]*[\t ]*/)[0]; |
| 43 | let singleIndent = Array(indentSize + 1).join(indentCharacter); |
| 44 | let indentLevel = 0; |
| 45 | let indent = () => { indentLevel++; indentString += singleIndent; }; |
| 46 | let outdent = () => { indentLevel--; indentString = indentString.slice(0, -indentSize); }; |
| 47 | |
| 48 | let output = []; |
| 49 | let print = {}; |
| 50 | print["{"] = (c) => { print.singleSpace(); output.push(c); print.newLine(); }; |
| 51 | print["}"] = (c) => { print.newLine(); output.push(c); print.newLine(); }; |
| 52 | print.newLine = (keepWhitespace) => { |
| 53 | if (!keepWhitespace) { while (whiteRe.test(output[output.length - 1])) output.pop(); } |
| 54 | if (output.length) output.push('\n'); |
| 55 | if (indentString) output.push(indentString); |
| 56 | }; |
| 57 | print.singleSpace = () => { if (output.length && !whiteRe.test(output[output.length - 1])) output.push(' '); }; |
| 58 | |
| 59 | if (indentString) output.push(indentString); |
| 60 | |
| 61 | while (true) { |
| 62 | let isAfterSpace = skipWhitespace(); |
| 63 | if (!ch) break; |
| 64 | if (ch === '{') { indent(); print["{"](ch); } |
| 65 | else if (ch === '}') { outdent(); print["}"](ch); } |
| 66 | else if (ch === '"' || ch === '\'') { output.push(eatString(ch)); } |
| 67 | else if (ch === ';') { output.push(ch, '\n', indentString); } |
no test coverage detected