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@stack.nl>
   7
   8   */
   9 #include <fstream.h>
  10 #include <ctype.h>
  11
  12 #include "international.hh"
  13 #include "data-file.hh"
  14
  15 void
  16 Data_file::gobble_white()
  17 {
  18   char c;
  19
  20   while ((c=data_get()) == ' ' ||c == '\t')
  21     if (eof())
  22       break;
  23
  24   data_unget (c);
  25 }
  26
  27 String
  28 Data_file::get_word()
  29 {// should handle escape seq's
  30   String s;
  31
  32   while (1)
  33     {
  34       char      c  = data_get();
  35
  36       if (isspace (c) || eof())
  37         {
  38           data_unget (c);
  39           break;
  40         }
  41
  42
  43       if (c == '\"')
  44         {
  45           rawmode= true;
  46
  47           while ((c  = data_get()) != '\"')
  48             if (eof())
  49               error (_("EOF in a string"));
  50             else
  51               s += c;
  52
  53
  54           rawmode= false;
  55         }
  56       else
  57         s += c;
  58     }
  59
  60   return s;
  61 }
  62
  63 /**  get a char
  64    Only class member who uses text_file::get
  65    */
  66 char
  67 Data_file::data_get() {
  68   char c =  get();
  69   if (!rawmode && c == '#') // gobble comment
  70     {
  71       while ((c = get()) != '\n' && !eof ())
  72         ;
  73       return '\n';
  74     }
  75
  76   return c;
  77 }
  78
  79 /// read line, gobble '\n'
  80 String Data_file::get_line()
  81 {
  82   char c;
  83   String s;
  84
  85   while ((c  = data_get()) != '\n' && !eof ())
  86     s += c;
  87   return s;
  88 }
  89
  90 /// gobble stuff before first entry on a line.
  91 void
  92 Data_file::gobble_leading_white()
  93 {
  94   // eat blank lines.
  95   while (!eof())
  96     {
  97       char c = data_get();
  98       if (!isspace (c))
  99         {
 100           data_unget (c);
 101           break;
 102         }
 103     }
 104 }