On 25.01.16 09:07, Johannes Schindelin wrote:
[]
> diff --git a/xdiff/xmerge.c b/xdiff/xmerge.c
> index 625198e..c852acc 100644
> --- a/xdiff/xmerge.c
> +++ b/xdiff/xmerge.c
> @@ -143,6 +143,35 @@ static int xdl_orig_copy(xdfenv_t *xe, int i, int count,
> int add_nl, char *dest)
> return xdl_recs_copy_0(1, xe, i, count, add_nl, dest);
> }
>
> +/*
> + * Returns 1 if the i'th line ends in CR/LF (if it is the last line and
> + * has no eol, the preceding line, if any), 0 if it ends in LF-only, and
> + * -1 if the line ending cannot be determined.
> + */
> +static int is_eol_crlf(xdfile_t *file, int i)
Minot nit: Could that be
is_eol_crlf(xdfile_t *file, int lineno)
(or may be)
is_eol_crlf(const xdfile_t *file, int lineno)
(or may be)
has_eol_crlf(const xdfile_t *file, int lineno)
> +{
> + long size;
> +
> + if (i < file->nrec - 1)
> + /* All lines before the last *must* end in LF */
> + return (size = file->recs[i]->size) > 1 &&
> + file->recs[i]->ptr[size - 2] == '\r';
> + if (!file->nrec)
> + /* Cannot determine eol style from empty file */
> + return -1;
> + if ((size = file->recs[i]->size) &&
> + file->recs[i]->ptr[size - 1] == '\n')
> + /* Last line; ends in LF; Is it CR/LF? */
> + return size > 1 &&
> + file->recs[i]->ptr[size - 2] == '\r';
> + if (!i)
> + /* The only line has no eol */
> + return -1;
> + /* Determine eol from second-to-last line */
> + return (size = file->recs[i - 1]->size) > 1 &&
> + file->recs[i - 1]->ptr[size - 2] == '\r';
> +}
> +
--
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