flower/data-file.cc

   1 /*
   2   data-file.cc --  implement Data_file
   3
   4   source file of the Flower Library
   5
   6   (c) '95, '96, '97 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7
   8   DEPRECATED
   9
  10   */
  11 #include <fstream.h>
  12 #include <ctype.h>
  13 #include <stdlib.h>
  14
  15 #include "international.hh"
  16 #include "data-file.hh"
  17
  18 void
  19 Data_file::gobble_white()
  20 {
  21   char c;
  22
  23   while ((c=data_get()) == ' ' ||c == '\t')
  24     if (eof_b())
  25       return;
  26
  27   data_unget (c);
  28 }
  29
  30 String
  31 Data_file::get_word()
  32 {// should handle escape seq's
  33   String s;
  34
  35   while (1)
  36     {
  37       char      c  = data_get();
  38
  39       if  (eof_b ())
  40         break;
  41
  42       if (isspace (c))
  43         {
  44           data_unget (c);
  45           break;
  46         }
  47
  48
  49       if (c == '\"')
  50         {
  51           rawmode= true;
  52
  53           while ((c  = data_get()) != '\"')
  54             if (eof_b ())
  55               error (_ ("EOF in a string"));
  56             else
  57               s += to_str (c);
  58
  59
  60           rawmode= false;
  61         }
  62       else
  63         s += to_str (c);
  64     }
  65
  66   return s;
  67 }
  68
  69 char
  70 Data_file::data_get()
  71 {
  72   char c =  get();
  73   if (!rawmode && c == '#') // gobble comment
  74     {
  75       while (!eof_b () && (c = get()) != '\n')
  76         ;
  77       return '\n';
  78     }
  79
  80   return c;
  81 }
  82
  83 String
  84 Data_file::get_line()
  85 {
  86   char c;
  87   String s;
  88
  89   while (!eof_b () && (c  = data_get()) != '\n')
  90     s += to_str (c);
  91   return s;
  92 }
  93
  94 void
  95 Data_file::gobble_leading_white()
  96 {
  97   // eat blank lines.
  98   while (!eof_b ())
  99     {
 100       char c = data_get();
 101       if (!isspace (c))
 102         {
 103           data_unget (c);
 104           break;
 105         }
 106     }
 107 }
 108
 109 Data_file::Data_file (String s)
 110   : Text_stream (s)
 111 {
 112   //*mlog << "(" << s << flush;
 113   rawmode=  false;
 114 }
 115
 116 void
 117 Data_file::warning (String s)
 118 {
 119   message (_ ("warning: ") + s);
 120 }
 121
 122 void
 123 Data_file::error (String s)
 124 {
 125   message (s);
 126   exit (1);
 127 }
 128
 129 String
 130 Data_file::gulp ()
 131 {
 132   String s;
 133
 134   while (!eof_b ())
 135     {
 136       s += to_str (data_get ());
 137     }
 138   return s;
 139 }
 140
 141
 142 Data_file::~Data_file ()
 143 {
 144 }