/* this is the scanner example from the JLex website    (with small modifications to make it more readable) */%%%{  private int comment_count = 0;%} %line%char%state COMMENT%full%debugALPHA=[A-Za-z]DIGIT=[0-9]NONNEWLINE_WHITE_SPACE_CHAR=[\ \t\b\012]NEWLINE=\r|\n|\r\nWHITE_SPACE_CHAR=[\n\r\ \t\b\012]STRING_TEXT=(\\\"|[^\n\r\"]|\\{WHITE_SPACE_CHAR}+\\)*COMMENT_TEXT=([^*/\n]|[^*\n]"/"[^*\n]|[^/\n]"*"[^/\n]|"*"[^/\n]|"/"[^*\n])*Ident = {ALPHA}({ALPHA}|{DIGIT}|_)*%% <YYINITIAL> {  "," { return (new Yytoken(0,yytext(),yyline,yychar,yychar+1)); }  ":" { return (new Yytoken(1,yytext(),yyline,yychar,yychar+1)); }  ";" { return (new Yytoken(2,yytext(),yyline,yychar,yychar+1)); }  "(" { return (new Yytoken(3,yytext(),yyline,yychar,yychar+1)); }  ")" { return (new Yytoken(4,yytext(),yyline,yychar,yychar+1)); }  "[" { return (new Yytoken(5,yytext(),yyline,yychar,yychar+1)); }  "]" { return (new Yytoken(6,yytext(),yyline,yychar,yychar+1)); }  "{" { return (new Yytoken(7,yytext(),yyline,yychar,yychar+1)); }  "}" { return (new Yytoken(8,yytext(),yyline,yychar,yychar+1)); }  "." { return (new Yytoken(9,yytext(),yyline,yychar,yychar+1)); }  "+" { return (new Yytoken(10,yytext(),yyline,yychar,yychar+1)); }  "-" { return (new Yytoken(11,yytext(),yyline,yychar,yychar+1)); }  "*" { return (new Yytoken(12,yytext(),yyline,yychar,yychar+1)); }  "/" { return (new Yytoken(13,yytext(),yyline,yychar,yychar+1)); }  "=" { return (new Yytoken(14,yytext(),yyline,yychar,yychar+1)); }  "<>" { return (new Yytoken(15,yytext(),yyline,yychar,yychar+2)); }  "<"  { return (new Yytoken(16,yytext(),yyline,yychar,yychar+1)); }  "<=" { return (new Yytoken(17,yytext(),yyline,yychar,yychar+2)); }  ">"  { return (new Yytoken(18,yytext(),yyline,yychar,yychar+1)); }  ">=" { return (new Yytoken(19,yytext(),yyline,yychar,yychar+2)); }  "&"  { return (new Yytoken(20,yytext(),yyline,yychar,yychar+1)); }  "|"  { return (new Yytoken(21,yytext(),yyline,yychar,yychar+1)); }  ":=" { return (new Yytoken(22,yytext(),yyline,yychar,yychar+2)); }  {NONNEWLINE_WHITE_SPACE_CHAR}+ { }  "/*" { yybegin(COMMENT); comment_count++; }  \"{STRING_TEXT}\" {    String str =  yytext().substring(1,yylength()-1);    return (new Yytoken(40,str,yyline,yychar,yychar+yylength()));  }    \"{STRING_TEXT} {    String str =  yytext().substring(1,yytext().length());    Utility.error(Utility.E_UNCLOSEDSTR);    return (new Yytoken(41,str,yyline,yychar,yychar + str.length()));  }     {DIGIT}+ { return (new Yytoken(42,yytext(),yyline,yychar,yychar+yylength())); }    {Ident} { return (new Yytoken(43,yytext(),yyline,yychar,yychar+yylength())); }  }<COMMENT> {  "/*" { comment_count++; }  "*/" { if (--comment_count == 0) yybegin(YYINITIAL); }  {COMMENT_TEXT} { }}{NEWLINE} { }. {  System.out.println("Illegal character: <" + yytext() + ">");	Utility.error(Utility.E_UNMATCHED);}