readline.h File Reference

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Functions
int	LineRead (FILE *fd, char buf[], int n, int *cnt, int *nr)
void C2F()	readnextline (integer *fd, char buf[], integer *n, integer *count, integer *nr, integer *ierr)

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Function Documentation

int LineRead	(	FILE *	fd,
		char	buf[],
		int	n,
		int *	cnt,
		int *	nr
	)

Definition at line 23 of file readline.c.

References count, CR, info, LF, offset, and SEEK_CUR.

{
  int c,count,info;
  long int offset;

  count=0;
  *nr=0;
  
  while (1) {
    c=fgetc(fd);
    *nr=*nr+1;
    if (c==LF) { /* LF reached first: unix file */
      buf[count++]=(char)0;
      info=1; /* EOL reached */
      break;
    }
    else if (c==CR) { /* CR reached first: Dos or Mac file */
      c=fgetc(fd);
      *nr=*nr+1;
      if (c==EOF) {
        buf[count++]=(char)0;
        info=0;/* EOF reached after an EOL */
        break;
      }
    else if (c==LF) { /* LF after CR : Dos file */
        buf[count++]=(char)0;
        info=1; /* EOL reached */
        break;
      }
      else if (c!=LF) { /* Mac file */
        offset=-1;
        fseek(fd,offset,SEEK_CUR);
        *nr=*nr-1;
        buf[count++]=(char)0;
        info=1;  /* EOL reached */
        break;
      }
    }
    else if (c==EOF) { /* EOF reached before any EOL*/
      buf[count++]=(char)0;
      if (count==1) 
        info=-1; /* EOF reached */
      else
        info=3;
      break;
    }
    else {
      buf[count++]=(char)c;
      if (count==n-1) {
        buf[count++]=(char)0;
        info=2; /* buffer full */
        break;
      }
    }
  }
  *cnt=count;
  return(info);
}

void C2F() readnextline	(	integer *	fd,
		char	buf[],
		integer *	n,
		integer *	count,
		integer *	nr,
		integer *	ierr
	)

Definition at line 82 of file readline.c.

References buf, count, fd, GetFile(), ierr, LineRead(), n, and nr.

{

FILE *fa= GetFile(fd);

*ierr=LineRead(fa,buf,*n,count,nr);

}

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