flower/textdb.hh

   1 #ifndef TEXTDB_HH
   2 #define TEXTDB_HH
   3
   4 #include "textstr.hh"
   5
   6 /**: do "#" comments, read quote enclosed  fields */
   7
   8 /// a "const" svec. Contents can't be changed.
   9 class Text_record : svec<String>
  10 {
  11     int line_no;
  12     String filename;
  13
  14 public:
  15     Text_record() { } // needed because of other ctor
  16
  17     /// report an error in this line.
  18     message(String s) {
  19         cerr << '\n'<< filename << ": "<< line_no << s << "\n";
  20     }
  21     String operator[](int j) {
  22         return svec<String>::operator[](j);
  23     }
  24
  25     Text_record(svec<String> s, String fn, int j) : svec<String>(s) {
  26         filename = fn; line_no = j;
  27     }
  28     svec<String>::sz;
  29 };
  30
  31 /// abstraction for a datafile
  32 class Text_db : private Data_file
  33 {
  34  public:
  35     /// get a line with records
  36     Text_record    get_record();
  37
  38     Text_db(String fn):Data_file(fn) { }
  39     Data_file::error;
  40     Data_file::eof;
  41
  42     /// get next line.
  43     Text_record operator++(int) {
  44         return get_record();
  45     }
  46     /// are we done yet?
  47     operator bool() {
  48         return !eof();
  49     }
  50 };
  51
  52
  53 /**
  54     add a subrec/fieldsep/record separator
  55     */
  56 #endif