PPT Slide

Title_Missing_Left_Quote = [^/\r\n]+\"

Title_Missing_Right_Quote = \"[^/\r\n]+

...

private void warning(String s) {

System.err.println(s);

}

<TITLE> {

{Title} { print_start_tag("Book");

print_start_tag("Title");

print_element_data(yytext());

print_end_tag("Title");

}

{Title_Missing_Left_Quote} { warning("Missing left quote in Title");

print_start_tag("Book");

print_start_tag("Title");

print_element_data("\"" + yytext());

print_end_tag("Title");

}

{Title_Missing_Right_Quote} { warning("Missing right quote in Title");

print_start_tag("Book");

print_start_tag("Title");

print_element_data(yytext() + "\"");

print_end_tag("Title");

}

{Slash} { yybegin(AUTHOR); }

<<EOF>> { print_end_tag("BookCatalogue");

return 0;

}

Recover from the error in the input

by prepending a quote to yytext().

Recover from the error in the input

by appending a quote to yytext().