tools: move eslint from tools to tools/node_modules

This is required because we need to add the babel-eslint dependency
and it has to be able to resolve "eslint".
babel-eslint is required to support future ES features such as async
iterators and import.meta.

Refs: https://github.com/nodejs/node/pull/17755
PR-URL: https://github.com/nodejs/node/pull/17820
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>

1 files changed, 57 insertions, 0 deletions

diff --git a/tools/node_modules/eslint/node_modules/natural-compare/index.js b/tools/node_modules/eslint/node_modules/natural-compare/index.js
new file mode 100644
index 0000000000..e705d49f5f
--- /dev/null
+++ b/tools/node_modules/eslint/node_modules/natural-compare/index.js
@@ -0,0 +1,57 @@
+
+
+
+/*
+ * @version    1.4.0
+ * @date       2015-10-26
+ * @stability  3 - Stable
+ * @author     Lauri Rooden (https://github.com/litejs/natural-compare-lite)
+ * @license    MIT License
+ */
+
+
+var naturalCompare = function(a, b) {
+	var i, codeA
+	, codeB = 1
+	, posA = 0
+	, posB = 0
+	, alphabet = String.alphabet
+
+	function getCode(str, pos, code) {
+		if (code) {
+			for (i = pos; code = getCode(str, i), code < 76 && code > 65;) ++i;
+			return +str.slice(pos - 1, i)
+		}
+		code = alphabet && alphabet.indexOf(str.charAt(pos))
+		return code > -1 ? code + 76 : ((code = str.charCodeAt(pos) || 0), code < 45 || code > 127) ? code
+			: code < 46 ? 65               // -
+			: code < 48 ? code - 1
+			: code < 58 ? code + 18        // 0-9
+			: code < 65 ? code - 11
+			: code < 91 ? code + 11        // A-Z
+			: code < 97 ? code - 37
+			: code < 123 ? code + 5        // a-z
+			: code - 63
+	}
+
+
+	if ((a+="") != (b+="")) for (;codeB;) {
+		codeA = getCode(a, posA++)
+		codeB = getCode(b, posB++)
+
+		if (codeA < 76 && codeB < 76 && codeA > 66 && codeB > 66) {
+			codeA = getCode(a, posA, posA)
+			codeB = getCode(b, posB, posA = i)
+			posB = i
+		}
+
+		if (codeA != codeB) return (codeA < codeB) ? -1 : 1
+	}
+	return 0
+}
+
+try {
+	module.exports = naturalCompare;
+} catch (e) {
+	String.naturalCompare = naturalCompare;
+}