flower/include/text-db.hh

   1 #ifndef TEXTDB_HH
   2 #define TEXTDB_HH
   3
   4 #include "data-file.hh"
   5
   6 /**a "const" Array. Contents can't be changed. do "#" comments, read quote enclosed  fields */
   7
   8 class Text_record : Array<String>
   9 {
  10     int line_no;
  11     String filename;
  12
  13 public:
  14     Text_record() { } // needed because of other ctor
  15
  16     /// report an error in this line.
  17     void message (String s);
  18       String operator[](int j) {
  19         return Array<String>::operator[](j);
  20     }
  21
  22     Text_record (Array<String> s, String fn, int j) : Array<String>(s) {
  23         filename = fn; line_no = j;
  24     }
  25     Array<String>::size;
  26 };
  27
  28 /** abstraction for a datafile.
  29     add a subrec/fieldsep/record separator
  30     */
  31
  32 class Text_db : private Data_file
  33 {
  34     void gobble_leading_white();
  35 public:
  36     /// get a line with records
  37     Text_record    get_record();
  38
  39     Text_db (String fn):Data_file (fn) { }
  40     Data_file::error;
  41     bool eof_b ();
  42
  43     /// get next line.
  44     Text_record operator++(int) {
  45         return get_record();
  46     }
  47     /// are we done yet?
  48     operator bool() {
  49         return !eof_b ();
  50     }
  51 };
  52
  53 #endif