/* YACC spefication of URI grammar */
/* $Id: url-formal.y,v 1.5 1994/05/11 22:36:57 connolly Exp $ */

%token WORD /* string of data characters and escape squences, i.e.
		DATA = [-*\.0-9@A-Z_a-z] (see isAcceptable in HTParse.c)
		HEX = [0-9A-F]
		WORD = ({DATA}|%{HEX}{HEX})+ */ ;

%union{
  char *string;
};

%type <string> WORD
%type <string> scheme filename fragmentid keyword value words

%%
href	: relative fragmentOpt
	| uri fragmentOpt
	;

relative : path fragmentOpt
        { printf("This is a relative URI.\n"); }
        ;

uri : scheme ':' path paramsOpt searchOpt
	;

path : /* void */
	| '/' { printf("absolute\n"); } path
	| filename
	| filename '/' { printf("subdir\n"); } path
	;

paramsOpt : /* void */
	| ';' params
	;

params : keyword '=' value
	| keyword '=' value ';' params
	;

fragmentOpt : /* void */
	| '#' fragmentid
	;

searchOpt : /* void */
	| '?' { printf("searchable...\n"); } searchStuff
	;

searchStuff: /* void */ | words | params
	;

words	: WORD { printf("search: %s\n", $1); };
scheme : WORD { printf("scheme: %s\n", $1); };
filename : WORD { printf("filename: %s\n", $1); };
keyword : WORD { printf("keyword: %s\n", $1); };
value : WORD { printf("value: %s\n", $1); };
fragmentid : WORD { printf("fragment-id: %s\n", $1); };

%%

yywrap()
{
  return 1;
}