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posix: Sync regex code with gnulib

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It sync with gnulib commit 43ee1a6bf.  The main change is 9682f18e9.
(which does not have a meaniful description).

Checked on x86_64-linux-gnu.
This commit is contained in:
Adhemerval Zanella
2020-12-29 17:32:25 -03:00
parent fee3b889d8
commit c2a150d089
4 changed files with 35 additions and 19 deletions
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19
posix/regex_internal.c
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@@ -300,18 +300,20 @@ build_wcs_upper_buffer (re_string_t *pstr)
while (byte_idx < end_idx)
{
wchar_t wc;
unsigned char ch = pstr->raw_mbs[pstr->raw_mbs_idx + byte_idx];
if (isascii (pstr->raw_mbs[pstr->raw_mbs_idx + byte_idx])
&& mbsinit (&pstr->cur_state))
if (isascii (ch) && mbsinit (&pstr->cur_state))
{
/* In case of a singlebyte character. */
pstr->mbs[byte_idx]
= toupper (pstr->raw_mbs[pstr->raw_mbs_idx + byte_idx]);
/* The next step uses the assumption that wchar_t is encoded
ASCII-safe: all ASCII values can be converted like this. */
pstr->wcs[byte_idx] = (wchar_t) pstr->mbs[byte_idx];
++byte_idx;
continue;
wchar_t wcu = __towupper (ch);
if (isascii (wcu))
{
pstr->mbs[byte_idx] = wcu;
pstr->wcs[byte_idx] = wcu;
byte_idx++;
continue;
}
}
remain_len = end_idx - byte_idx;
@@ -348,7 +350,6 @@ build_wcs_upper_buffer (re_string_t *pstr)
{
/* It is an invalid character, an incomplete character
at the end of the string, or '\0'. Just use the byte. */
int ch = pstr->raw_mbs[pstr->raw_mbs_idx + byte_idx];
pstr->mbs[byte_idx] = ch;
/* And also cast it to wide char. */
pstr->wcs[byte_idx++] = (wchar_t) ch;