chushihua

2026-01-26 23:20:48 +08:00
commit 7b5aab0206
22521 changed files with 3300090 additions and 0 deletions
@@ -0,0 +1,20 @@
+'use strict';
+var htmlCommentRegex = require('html-comment-regex');
+
+function isBinary(buf) {
+	var isBuf = Buffer.isBuffer(buf);
+
+	for (var i = 0; i < 24; i++) {
+		var charCode = isBuf ? buf[i] : buf.charCodeAt(i);
+
+		if (charCode === 65533 || charCode <= 8) {
+			return true;
+		}
+	}
+
+	return false;
+}
+
+module.exports = function (buf) {
+	return !isBinary(buf) && /^\s*(?:<\?xml[^>]*>\s*)?(?:<!doctype svg[^>]*\s*(?:<![^>]*>)*[^>]*>\s*)?<svg[^>]*>[^]*<\/svg>\s*$/i.test(buf.toString().replace(htmlCommentRegex, ''));
+};