1 files changed, 45 insertions, 0 deletions
diff --git a/deps/npm/node_modules/cross-spawn/lib/util/escape.js b/deps/npm/node_modules/cross-spawn/lib/util/escape.js
new file mode 100644
index 0000000000..b0bb84c3a1
--- /dev/null
+++ b/deps/npm/node_modules/cross-spawn/lib/util/escape.js
@@ -0,0 +1,45 @@
+'use strict';
+
+// See http://www.robvanderwoude.com/escapechars.php
+const metaCharsRegExp = /([()\][%!^"`<>&|;, *?])/g;
+
+function escapeCommand(arg) {
+    // Escape meta chars
+    arg = arg.replace(metaCharsRegExp, '^$1');
+
+    return arg;
+}
+
+function escapeArgument(arg, doubleEscapeMetaChars) {
+    // Convert to string
+    arg = `${arg}`;
+
+    // Algorithm below is based on https://qntm.org/cmd
+
+    // Sequence of backslashes followed by a double quote:
+    // double up all the backslashes and escape the double quote
+    arg = arg.replace(/(\\*)"/g, '$1$1\\"');
+
+    // Sequence of backslashes followed by the end of the string
+    // (which will become a double quote later):
+    // double up all the backslashes
+    arg = arg.replace(/(\\*)$/, '$1$1');
+
+    // All other backslashes occur literally
+
+    // Quote the whole thing:
+    arg = `"${arg}"`;
+
+    // Escape meta chars
+    arg = arg.replace(metaCharsRegExp, '^$1');
+
+    // Double escape meta chars if necessary
+    if (doubleEscapeMetaChars) {
+        arg = arg.replace(metaCharsRegExp, '^$1');
+    }
+
+    return arg;
+}
+
+module.exports.command = escapeCommand;
+module.exports.argument = escapeArgument;