358 lf_init (struct line_filter *lf, FILE *infile)  in lf_init()  argument
360   lf->infile = infile;  in lf_init()
361   lf->bufpos = lf->buffer = lf->buflim = xmalloc (SDIFF_BUFSIZE + 1);  in lf_init()
362   lf->buflim[0] = '\n';  in lf_init()
367 lf_refill (struct line_filter *lf)  in lf_refill()  argument
369   size_t s = ck_fread (lf->buffer, SDIFF_BUFSIZE, lf->infile);  in lf_refill()
370   lf->bufpos = lf->buffer;  in lf_refill()
371   lf->buflim = lf->buffer + s;  in lf_refill()
372   lf->buflim[0] = '\n';  in lf_refill()
379 lf_copy (struct line_filter *lf, lin lines, FILE *outfile)  in lf_copy()  argument
381   char *start = lf->bufpos;  in lf_copy()
385       lf->bufpos = (char *) memchr (lf->bufpos, '\n', lf->buflim - lf->bufpos);  in lf_copy()
386       if (! lf->bufpos)  in lf_copy()
388 	  ck_fwrite (start, lf->buflim - start, outfile);  in lf_copy()
389 	  if (! lf_refill (lf))  in lf_copy()
391 	  start = lf->bufpos;  in lf_copy()
396 	  ++lf->bufpos;  in lf_copy()
400   ck_fwrite (start, lf->bufpos - start, outfile);  in lf_copy()
405 lf_skip (struct line_filter *lf, lin lines)  in lf_skip()  argument
409       lf->bufpos = (char *) memchr (lf->bufpos, '\n', lf->buflim - lf->bufpos);  in lf_skip()
410       if (! lf->bufpos)  in lf_skip()
412 	  if (! lf_refill (lf))  in lf_skip()
418 	  ++lf->bufpos;  in lf_skip()
425 lf_snarf (struct line_filter *lf, char *buffer, size_t bufsize)  in lf_snarf()  argument
429       char *start = lf->bufpos;  in lf_snarf()
430       char *next = (char *) memchr (start, '\n', lf->buflim + 1 - start);  in lf_snarf()
435       if (next < lf->buflim)  in lf_snarf()
438 	  lf->bufpos = next + 1;  in lf_snarf()
441       if (! lf_refill (lf))  in lf_snarf()