src/base/string/input/cl_st_get2.cc

   1 // cl_fget().
   2
   3 // General includes.
   4 #include "cl_sysdep.h"
   5
   6 // Specification.
   7 #include "cln/string.h"
   8
   9
  10 // Implementation.
  11
  12 #include "cln/io.h"
  13 #include "cl_spushstring.h"
  14
  15 namespace cln {
  16
  17 const cl_string cl_fget (std::istream& stream, int n, char delim)
  18 {
  19         var cl_spushstring buffer;
  20         // Handling of eofp is tricky: EOF is reached when (!stream.good()) || (stream.get()==EOF).
  21         while (stream.good()) {
  22                 var int c = stream.get();
  23                 if (c==EOF)
  24                         break;  // ios::eofbit already set
  25                 if (c==delim) {
  26                         stream.unget();
  27                         break;
  28                 }
  29                 if (--n <= 0) {
  30                         stream.unget();
  31                         stream.setstate(std::ios::failbit);
  32                         break;
  33                 }
  34                 buffer.push(c);
  35         }
  36         return buffer.contents();
  37 }
  38
  39 }  // namespace cln