/*
 *  Laboration 2 i C och UNIX
 *
 *  Komplett shell
 *  =========================================
 *
 *  Christian Ohlsson, di7chro@cse.kau.se
 *  Stefan Sonesson, di7stes@cse.kau.se
 *
 *  Karlstads Universitet, 991209
 *
 *
 *===========================================
*/
%{
#include "tree.h"
#include "y.tab.h"
%}

WORD	[a-zA-Z0-9_\-\./\*]+

%%
[ \t]+	{/*Käkar upp white-space*/}
"\n"	{ insert(NULL); return NL;}
"&"	{ insert(NULL); return AND;}
"|"	{ insert(NULL); return PIPE;}
";"	{ insert(NULL); return SEMI;}
">"	{ insert(NULL); return GREAT;}
"<"	{ insert(NULL); return LESS;}
">>"	{ insert(NULL); return DBLARR;}
"exit"	{ printf("OK, use the other stinky shell then...\n");exit(0);}
{WORD}	{ yylval.txt=insert(yytext);return WORD;}
.	      { fprintf(stderr,"What?\n",6);}
%%