flower/dstream.hh

   1
   2 #ifndef DSTREAM_HH
   3 #define DSTREAM_HH
   4
   5 #include "string.hh"
   6
   7 const char eol= '\n';
   8
   9 template<class K,class V>
  10 struct Assoc;
  11
  12 /**  debug stream.
  13    a class for providing debug output of nested structures,
  14    with indents according to \{\}()[].
  15
  16    One can turn on and off specific messages using the Assoc silent.
  17    This can be done automatically:
  18
  19    #define DEBUG  dstream_.identify_as(__PRETTY_FUNCTION__)
  20
  21    DEBUG << "a message\n";
  22
  23    Init for the class names which should be silent can be given in a rc file.
  24
  25   */
  26 class Dstream
  27 {
  28     ostream *os;
  29     int indentlvl;
  30     bool local_silence;
  31     String classname;
  32
  33     Assoc<String, bool> *silent;
  34 public:
  35
  36     bool silence(String);
  37
  38     /**
  39       if rcfile == 0, then do not read any rc file.
  40       */
  41
  42     Dstream(ostream *r, const char  * rcfile);
  43     virtual ~Dstream();
  44     Dstream &identify_as(String s);
  45
  46     Dstream &operator << (String s);
  47 };
  48 #endif
  49