1 files changed, 34 insertions, 0 deletions
diff --git a/actionpack/lib/action_dispatch/vendor/rack-mount-0.6.6.pre/rack/mount/strexp/parser.y b/actionpack/lib/action_dispatch/vendor/rack-mount-0.6.6.pre/rack/mount/strexp/parser.y
new file mode 100644
index 0000000000..ffbd9fae11
--- /dev/null
+++ b/actionpack/lib/action_dispatch/vendor/rack-mount-0.6.6.pre/rack/mount/strexp/parser.y
@@ -0,0 +1,34 @@
+class Rack::Mount::StrexpParser
+rule
+  target: expr { result = anchor ? "\\A#{val.join}\\Z" : "\\A#{val.join}" }
+
+  expr: expr token { result = val.join }
+      | token
+
+  token: PARAM {
+           name = val[0].to_sym
+           requirement = requirements[name]
+           result = REGEXP_NAMED_CAPTURE % [name, requirement]
+         }
+       | GLOB {
+           name = val[0].to_sym
+           requirement = requirements[name]
+           result = REGEXP_NAMED_CAPTURE % [name, '.+' || requirement]
+         }
+       | LPAREN expr RPAREN { result = "(?:#{val[1]})?" }
+       | CHAR { result = Regexp.escape(val[0]) }
+end
+
+---- header ----
+require 'rack/mount/utils'
+require 'rack/mount/strexp/tokenizer'
+
+---- inner
+
+if Regin.regexp_supports_named_captures?
+  REGEXP_NAMED_CAPTURE = '(?<%s>%s)'.freeze
+else
+  REGEXP_NAMED_CAPTURE = '(?:<%s>%s)'.freeze
+end
+
+attr_accessor :anchor, :requirements