#include "__read.h"
#include "Exception.h"
#include <fcntl.h>
#include <stdio.h>

namespace jet {
   
   __read::__read(coreutils::ZString &in, coreutils::MString &parent, Global &global) : Tag(in, parent, global) {
      if(!variableDefined(coreutils::ZString("file")))
	throw coreutils::Exception("file keyword must be specified.");
      if(hasContainer)
	throw coreutils::Exception("read tag does not have a container.");
      fd = open(variables["file"], O_RDONLY);
      while(len = read(fd, &buffer, sizeof(buffer - 1))) {
	 buffer[len] = 0;
	 out << buffer;
      }      
      close(fd);      
   }

}