static int
enc_set_default_encoding(struct default_encoding *def, VALUE encoding, const char *name)
{
int overridden = FALSE;
if (def->index != -2)
/* Already set */
overridden = TRUE;
if (NIL_P(encoding)) {
def->index = -1;
def->enc = 0;
st_insert(enc_table.names, (st_data_t)strdup(name),
(st_data_t)UNSPECIFIED_ENCODING);
}
else {
def->index = rb_enc_to_index(rb_to_encoding(encoding));
def->enc = 0;
enc_alias_internal(name, def->index);
}
if (def == &default_external)
enc_alias_internal("filesystem", Init_enc_set_filesystem_encoding());
return overridden;
}
static int
enc_alias(const char *alias, int idx)
{
if (!valid_encoding_name_p(alias)) return -1;
alias = enc_alias_internal(alias, idx);
set_encoding_const(alias, rb_enc_from_index(idx));
return idx;
}
int
rb_locale_encindex(void)
{
VALUE charmap = rb_locale_charmap(rb_cEncoding);
int idx;
if (NIL_P(charmap))
idx = rb_usascii_encindex();
else if ((idx = rb_enc_find_index(StringValueCStr(charmap))) < 0)
idx = rb_ascii8bit_encindex();
if (rb_enc_registered("locale") < 0) enc_alias_internal("locale", idx);
return idx;
}
int
rb_locale_encindex(void)
{
int idx = rb_locale_charmap_index();
if (idx < 0) idx = ENCINDEX_ASCII;
if (rb_enc_registered("locale") < 0) {
# if defined _WIN32
void Init_w32_codepage(void);
Init_w32_codepage();
# endif
enc_alias_internal("locale", idx);
}
return idx;
}
static int
enc_set_filesystem_encoding(void)
{
int idx;
#if defined NO_LOCALE_CHARMAP
idx = rb_enc_to_index(rb_default_external_encoding());
#elif defined _WIN32 || defined __CYGWIN__
char cp[sizeof(int) * 8 / 3 + 4];
snprintf(cp, sizeof cp, "CP%d", AreFileApisANSI() ? GetACP() : GetOEMCP());
idx = rb_enc_find_index(cp);
if (idx < 0) idx = rb_ascii8bit_encindex();
#else
idx = rb_enc_to_index(rb_default_external_encoding());
#endif
enc_alias_internal("filesystem", idx);
return idx;
}
int
rb_locale_encindex(void)
{
VALUE charmap = rb_locale_charmap(rb_cEncoding);
int idx;
if (NIL_P(charmap))
idx = ENCINDEX_US_ASCII;
else if ((idx = rb_enc_find_index(StringValueCStr(charmap))) < 0)
idx = ENCINDEX_ASCII;
if (rb_enc_registered("locale") < 0) {
# if defined _WIN32
void Init_w32_codepage(void);
Init_w32_codepage();
# endif
enc_alias_internal("locale", idx);
}
return idx;
}
