--- a/parser.rl	Sat Sep 03 14:12:06 2011 -0700
+++ b/parser.rl	Tue Sep 13 22:13:02 2011 -0700
@@ -1,12 +1,72 @@
 /* vim: set noet nosta sw=4 ts=4 ft=ragel : */
+/*
+Copyright (c) 2011, Mahlon E. Smith <mahlon@martini.nu>
+All rights reserved.
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of Mahlon E. Smith nor the names of his
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
+EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/*
+Squid docs:
+---------------------------------------------------------------------------
+TAG: url_rewrite_program
+Specify the location of the executable for the URL rewriter.
+Since they can perform almost any function there isn't one included.
+
+For each requested URL rewriter will receive on line with the format
+
+URL <SP> client_ip "/" fqdn <SP> user <SP> method [<SP> kvpairs]<NL>
+
+In the future, the rewriter interface will be extended with
+key=value pairs ("kvpairs" shown above).  Rewriter programs
+should be prepared to receive and possibly ignore additional
+whitespace-separated tokens on each input line.
+
+And the rewriter may return a rewritten URL. The other components of
+the request line does not need to be returned (ignored if they are).
+
+The rewriter can also indicate that a client-side redirect should
+be performed to the new URL. This is done by prefixing the returned
+URL with "301:" (moved permanently) or 302: (moved temporarily).
+
+By default, a URL rewriter is not used.
+---------------------------------------------------------------------------
+*/
 
 #include "volta.h"
 
 %%{
 	machine redirector;
 
+	action parse_error {
+		debug( 2, LOC, "parse error\n" );
+		return( NULL );
+	}
+
 	action yay {
-		printf( "YAH\n" );
+		printf( "I saw: %s", p+1 );
 	}
 
 	# http://, ftp://, https://, etc
@@ -16,17 +76,16 @@
     #       username              optional password
 	creds = ( alnum | [+._\-] )+ . ( ':' . any+ )? . '@';
 
-	main := ' ' @yay;
+	main  := ( proto . creds ) | proto @yay '\n';
 }%%
 %% write data;
 
-/* state machine data */
 /*
 %%{
 	machine redirector;
 
 	action yay {
-		printf( "YAH\n" );
+		printf( "I saw: %s", p+1 );
 	}
 
 	# http://, ftp://, https://, etc
@@ -41,15 +100,34 @@
 %% write data;
 */
 
-int
+
+/*
+%%{
+	machine foo;
+
+	OPEN = 0;
+	CLOSE = 1;
+
+	main :=
+		start:
+		door_closed: (
+			OPEN -> door_open -> final
+		),
+		door_open: (
+			CLOSE -> door_closed
+		);
+}%%
+*/
+
+struct request *
 parse( char *p )
 {
    	/* initial machine state */
 	short int cs = 0;
 
 	/* the client request object */
-	/* request c_request; */
-	/* request *cp_request = &c_request; */
+	request c_request;
+	request *cp_request = &c_request;
 
 	/*
 	char ip[ INET_ADDRSTRLEN ];
@@ -66,6 +144,6 @@
 
 	/* reset the request */
 	/* c_request = reset_request; */
-	return( 0 );
+	return( cp_request );
 }