1 files changed, 129 insertions, 0 deletions
diff --git a/middleware/node_modules/path-to-regexp/index.js b/middleware/node_modules/path-to-regexp/index.js
new file mode 100644
index 0000000..500d1da
--- /dev/null
+++ b/middleware/node_modules/path-to-regexp/index.js
@@ -0,0 +1,129 @@
+/**
+ * Expose `pathtoRegexp`.
+ */
+
+module.exports = pathtoRegexp;
+
+/**
+ * Match matching groups in a regular expression.
+ */
+var MATCHING_GROUP_REGEXP = /\((?!\?)/g;
+
+/**
+ * Normalize the given path string,
+ * returning a regular expression.
+ *
+ * An empty array should be passed,
+ * which will contain the placeholder
+ * key names. For example "/user/:id" will
+ * then contain ["id"].
+ *
+ * @param  {String|RegExp|Array} path
+ * @param  {Array} keys
+ * @param  {Object} options
+ * @return {RegExp}
+ * @api private
+ */
+
+function pathtoRegexp(path, keys, options) {
+  options = options || {};
+  keys = keys || [];
+  var strict = options.strict;
+  var end = options.end !== false;
+  var flags = options.sensitive ? '' : 'i';
+  var extraOffset = 0;
+  var keysOffset = keys.length;
+  var i = 0;
+  var name = 0;
+  var m;
+
+  if (path instanceof RegExp) {
+    while (m = MATCHING_GROUP_REGEXP.exec(path.source)) {
+      keys.push({
+        name: name++,
+        optional: false,
+        offset: m.index
+      });
+    }
+
+    return path;
+  }
+
+  if (Array.isArray(path)) {
+    // Map array parts into regexps and return their source. We also pass
+    // the same keys and options instance into every generation to get
+    // consistent matching groups before we join the sources together.
+    path = path.map(function (value) {
+      return pathtoRegexp(value, keys, options).source;
+    });
+
+    return new RegExp('(?:' + path.join('|') + ')', flags);
+  }
+
+  path = ('^' + path + (strict ? '' : path[path.length - 1] === '/' ? '?' : '/?'))
+    .replace(/\/\(/g, '/(?:')
+    .replace(/([\/\.])/g, '\\$1')
+    .replace(/(\\\/)?(\\\.)?:(\w+)(\(.*?\))?(\*)?(\?)?/g, function (match, slash, format, key, capture, star, optional, offset) {
+      slash = slash || '';
+      format = format || '';
+      capture = capture || '([^\\/' + format + ']+?)';
+      optional = optional || '';
+
+      keys.push({
+        name: key,
+        optional: !!optional,
+        offset: offset + extraOffset
+      });
+
+      var result = ''
+        + (optional ? '' : slash)
+        + '(?:'
+        + format + (optional ? slash : '') + capture
+        + (star ? '((?:[\\/' + format + '].+?)?)' : '')
+        + ')'
+        + optional;
+
+      extraOffset += result.length - match.length;
+
+      return result;
+    })
+    .replace(/\*/g, function (star, index) {
+      var len = keys.length
+
+      while (len-- > keysOffset && keys[len].offset > index) {
+        keys[len].offset += 3; // Replacement length minus asterisk length.
+      }
+
+      return '(.*)';
+    });
+
+  // This is a workaround for handling unnamed matching groups.
+  while (m = MATCHING_GROUP_REGEXP.exec(path)) {
+    var escapeCount = 0;
+    var index = m.index;
+
+    while (path.charAt(--index) === '\\') {
+      escapeCount++;
+    }
+
+    // It's possible to escape the bracket.
+    if (escapeCount % 2 === 1) {
+      continue;
+    }
+
+    if (keysOffset + i === keys.length || keys[keysOffset + i].offset > m.index) {
+      keys.splice(keysOffset + i, 0, {
+        name: name++, // Unnamed matching groups must be consistently linear.
+        optional: false,
+        offset: m.index
+      });
+    }
+
+    i++;
+  }
+
+  // If the path is non-ending, match until the end or a slash.
+  path += (end ? '$' : (path[path.length - 1] === '/' ? '' : '(?=\\/|$)'));
+
+  return new RegExp(path, flags);
+};