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* io.c (swallow): small optimize.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@27770 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
usa 2010-05-13 04:03:01 +00:00
parent 6f3791f465
commit 44d8ab7203
1 changed files with 4 additions and 4 deletions

8
io.c
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@ -2294,23 +2294,23 @@ static inline int
swallow(rb_io_t *fptr, int term)
{
if (NEED_READCONV(fptr)) {
rb_encoding *enc = io_read_encoding(fptr);
int needconv = rb_enc_mbminlen(enc) != 1;
VALUE v;
make_readconv(fptr, 0);
do {
size_t cnt;
while ((cnt = READ_CHAR_PENDING_COUNT(fptr)) > 0) {
const char *p = READ_CHAR_PENDING_PTR(fptr);
rb_encoding *enc = io_read_encoding(fptr);
int i;
if (rb_enc_mbminlen(enc) == 1) {
if (needconv) {
if (*p != term) return TRUE;
while (--i && *++p == term);
}
else {
const char *e = p + cnt;
if (rb_enc_ascget(p, e, &i, enc) != term) return TRUE;
while ((p += i) < e && rb_enc_ascget(p, e, &i, enc) == term)
;
while ((p += i) < e && rb_enc_ascget(p, e, &i, enc) == term);
i = (int)(e - p);
}
io_shift_cbuf(fptr, (int)cnt - i, NULL);