mirror of
https://github.com/git/git
synced 2024-08-28 12:09:19 +00:00
Merge branch 'cn/maint-lf-to-crlf-filter' into maint
* cn/maint-lf-to-crlf-filter: lf_to_crlf_filter(): tell the caller we added "\n" when draining convert: track state in LF-to-CRLF filter
This commit is contained in:
commit
3bb8d69cdd
54
convert.c
54
convert.c
|
@ -876,24 +876,42 @@ int is_null_stream_filter(struct stream_filter *filter)
|
|||
/*
|
||||
* LF-to-CRLF filter
|
||||
*/
|
||||
|
||||
struct lf_to_crlf_filter {
|
||||
struct stream_filter filter;
|
||||
unsigned want_lf:1;
|
||||
};
|
||||
|
||||
static int lf_to_crlf_filter_fn(struct stream_filter *filter,
|
||||
const char *input, size_t *isize_p,
|
||||
char *output, size_t *osize_p)
|
||||
{
|
||||
size_t count;
|
||||
size_t count, o = 0;
|
||||
struct lf_to_crlf_filter *lf_to_crlf = (struct lf_to_crlf_filter *)filter;
|
||||
|
||||
/* Output a pending LF if we need to */
|
||||
if (lf_to_crlf->want_lf) {
|
||||
output[o++] = '\n';
|
||||
lf_to_crlf->want_lf = 0;
|
||||
}
|
||||
|
||||
/* We are told to drain */
|
||||
if (!input) {
|
||||
*osize_p -= o;
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (!input)
|
||||
return 0; /* we do not keep any states */
|
||||
count = *isize_p;
|
||||
if (count) {
|
||||
size_t i, o;
|
||||
for (i = o = 0; o < *osize_p && i < count; i++) {
|
||||
size_t i;
|
||||
for (i = 0; o < *osize_p && i < count; i++) {
|
||||
char ch = input[i];
|
||||
if (ch == '\n') {
|
||||
if (o + 1 < *osize_p)
|
||||
output[o++] = '\r';
|
||||
else
|
||||
break;
|
||||
output[o++] = '\r';
|
||||
if (o >= *osize_p) {
|
||||
lf_to_crlf->want_lf = 1;
|
||||
continue; /* We need to increase i */
|
||||
}
|
||||
}
|
||||
output[o++] = ch;
|
||||
}
|
||||
|
@ -904,15 +922,23 @@ static int lf_to_crlf_filter_fn(struct stream_filter *filter,
|
|||
return 0;
|
||||
}
|
||||
|
||||
static void lf_to_crlf_free_fn(struct stream_filter *filter)
|
||||
{
|
||||
free(filter);
|
||||
}
|
||||
|
||||
static struct stream_filter_vtbl lf_to_crlf_vtbl = {
|
||||
lf_to_crlf_filter_fn,
|
||||
null_free_fn,
|
||||
lf_to_crlf_free_fn,
|
||||
};
|
||||
|
||||
static struct stream_filter lf_to_crlf_filter_singleton = {
|
||||
&lf_to_crlf_vtbl,
|
||||
};
|
||||
static struct stream_filter *lf_to_crlf_filter(void)
|
||||
{
|
||||
struct lf_to_crlf_filter *lf_to_crlf = xcalloc(1, sizeof(*lf_to_crlf));
|
||||
|
||||
lf_to_crlf->filter.vtbl = &lf_to_crlf_vtbl;
|
||||
return (struct stream_filter *)lf_to_crlf;
|
||||
}
|
||||
|
||||
/*
|
||||
* Cascade filter
|
||||
|
@ -1194,7 +1220,7 @@ struct stream_filter *get_stream_filter(const char *path, const unsigned char *s
|
|||
|
||||
else if (output_eol(crlf_action) == EOL_CRLF &&
|
||||
!(crlf_action == CRLF_AUTO || crlf_action == CRLF_GUESS))
|
||||
filter = cascade_filter(filter, &lf_to_crlf_filter_singleton);
|
||||
filter = cascade_filter(filter, lf_to_crlf_filter());
|
||||
|
||||
return filter;
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue