| 'use strict'; |
| const htmlCommentRegex = require('html-comment-regex'); |
| |
| function isBinary(buf) { |
| const isBuf = Buffer.isBuffer(buf); |
| |
| for (let i = 0; i < 24; i++) { |
| const charCode = isBuf ? buf[i] : buf.charCodeAt(i); |
| |
| if (charCode === 65533 || charCode <= 8) { |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| const regex = /^\s*(?:<\?xml[^>]*>\s*)?(?:<!doctype svg[^>]*\s*(?:\[?(?:\s*<![^>]*>\s*)*\]?)*[^>]*>\s*)?<svg[^>]*>[^]*<\/svg>\s*$/i; |
| |
| module.exports = input => Boolean(input) && !isBinary(input) && regex.test(input.toString().replace(htmlCommentRegex, '')); |