// internet.cpp
#include "includes.h"
#include "internet.h"

internet::internet(void)
{ allOK=false;
  read_file=NULL;
  write_file=NULL;
  strcpy(templine,""); }

int internet::isOK(void)
{ return (allOK); }

void internet::getline(void)
{ if (fgets(templine,499,read_file)==NULL)
    strcpy(templine,"**END**"); }

void internet::tidyup(int xxx)
{ int i,j;
  for (i=0, j=0; templine[i]!=0; i++)
  { char c=templine[i];
    if (xxx==-1)
    { if (isupper(c)) c=tolower(c); }
    else if (xxx==1)
    { if (islower(c)) c=toupper(c); }
    if (iscntrl(c)) continue;
    templine[j]=c;
    j++; }
  templine[j]=0; }

char *internet::readline(void)
{ if (!allOK)
    return (NULL);
  getline();
  tidyup(0);
  return (templine); }

char *internet::readlineLC(void)
{ if (!allOK)
    return (NULL);
  getline();
  tidyup(-1);
  return (templine); }

char *internet::readlineUC(void)
{ if (!allOK)
    return (NULL);
  getline();
  tidyup(1);
  return (templine); }

void internet::writeline(char *s)
{ if (!allOK)
    return;
  fprintf(write_file,"%s\n",s);
  fflush(write_file); }