aboutsummaryrefslogtreecommitdiffstats
path: root/actionpack/lib/action_dispatch/vendor/rack-mount-0.6.6.pre/rack/mount/strexp/tokenizer.rb
diff options
context:
space:
mode:
Diffstat (limited to 'actionpack/lib/action_dispatch/vendor/rack-mount-0.6.6.pre/rack/mount/strexp/tokenizer.rb')
-rw-r--r--actionpack/lib/action_dispatch/vendor/rack-mount-0.6.6.pre/rack/mount/strexp/tokenizer.rb83
1 files changed, 83 insertions, 0 deletions
diff --git a/actionpack/lib/action_dispatch/vendor/rack-mount-0.6.6.pre/rack/mount/strexp/tokenizer.rb b/actionpack/lib/action_dispatch/vendor/rack-mount-0.6.6.pre/rack/mount/strexp/tokenizer.rb
new file mode 100644
index 0000000000..0ff7f67661
--- /dev/null
+++ b/actionpack/lib/action_dispatch/vendor/rack-mount-0.6.6.pre/rack/mount/strexp/tokenizer.rb
@@ -0,0 +1,83 @@
+#--
+# DO NOT MODIFY!!!!
+# This file is automatically generated by rex 1.0.5.beta1
+# from lexical definition file "lib/rack/mount/strexp/tokenizer.rex".
+#++
+
+require 'racc/parser'
+class Rack::Mount::StrexpParser < Racc::Parser
+ require 'strscan'
+
+ class ScanError < StandardError ; end
+
+ attr_reader :lineno
+ attr_reader :filename
+ attr_accessor :state
+
+ def scan_setup(str)
+ @ss = StringScanner.new(str)
+ @lineno = 1
+ @state = nil
+ end
+
+ def action
+ yield
+ end
+
+ def scan_str(str)
+ scan_setup(str)
+ do_parse
+ end
+ alias :scan :scan_str
+
+ def load_file( filename )
+ @filename = filename
+ open(filename, "r") do |f|
+ scan_setup(f.read)
+ end
+ end
+
+ def scan_file( filename )
+ load_file(filename)
+ do_parse
+ end
+
+
+ def next_token
+ return if @ss.eos?
+
+ text = @ss.peek(1)
+ @lineno += 1 if text == "\n"
+ token = case @state
+ when nil
+ case
+ when (text = @ss.scan(/\\(\(|\)|:|\*)/))
+ action { [:CHAR, @ss[1]] }
+
+ when (text = @ss.scan(/\:([a-zA-Z_]\w*)/))
+ action { [:PARAM, @ss[1]] }
+
+ when (text = @ss.scan(/\*([a-zA-Z_]\w*)/))
+ action { [:GLOB, @ss[1]] }
+
+ when (text = @ss.scan(/\(/))
+ action { [:LPAREN, text] }
+
+ when (text = @ss.scan(/\)/))
+ action { [:RPAREN, text] }
+
+ when (text = @ss.scan(/./))
+ action { [:CHAR, text] }
+
+ else
+ text = @ss.string[@ss.pos .. -1]
+ raise ScanError, "can not match: '" + text + "'"
+ end # if
+
+ else
+ raise ScanError, "undefined state: '" + state.to_s + "'"
+ end # case state
+ token
+ end # def next_token
+
+end # class