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ICU-2777 Change the default codepage detection so that it can react

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to the program's default codepage,
which may be different than the user requested locale with codepage.

X-SVN-Rev: 16188
This commit is contained in:
George Rhoten 2004-08-26 19:07:59 +00:00
parent b376366f95
commit 5e6496ac05
1 changed files with 32 additions and 31 deletions
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63
icu4c/source/common/putil.c
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@ -1898,58 +1898,59 @@ int_getDefaultCodepage()
const char *defaultTable = NULL;
uprv_memset(codesetName, 0, sizeof(codesetName));
localeName = uprv_getPOSIXID();
if (localeName != NULL && (name = (uprv_strchr(localeName, (int)'.'))) != NULL)
{
/* strip the locale name and look at the suffix only */
name = uprv_strncpy(codesetName, name+1, sizeof(codesetName));
codesetName[sizeof(codesetName)-1] = 0;
if ((euro = (uprv_strchr(name, (int)'@'))) != NULL)
{
*euro = 0;
}
/* if we can find the codset name, return that. */
if (*name)
{
return name;
}
}
/* otherwise, try CTYPE */
if (*codesetName)
{
uprv_memset(codesetName, 0, sizeof(codesetName));
}
localeName = setlocale(LC_CTYPE, NULL);
if (localeName != NULL && (name = (uprv_strchr(localeName, (int)'.'))) != NULL)
{
/* Check setlocale before the environment variables
because the application may have set it first */
/* setlocale needs "" and not NULL for Linux and Solaris */
localeName = setlocale(LC_CTYPE, "");
if (localeName != NULL && (name = (uprv_strchr(localeName, '.'))) != NULL) {
/* strip the locale name and look at the suffix only */
name = uprv_strncpy(codesetName, name+1, sizeof(codesetName));
codesetName[sizeof(codesetName)-1] = 0;
if ((euro = (uprv_strchr(name, (int)'@'))) != NULL)
{
if ((euro = (uprv_strchr(name, '@'))) != NULL) {
*euro = 0;
}
/* if we can find the codset name from setlocale, return that. */
if (*name)
{
if (*name) {
return name;
}
}
if (*codesetName)
{
#if U_HAVE_NL_LANGINFO_CODESET
if (*codesetName) {
uprv_memset(codesetName, 0, sizeof(codesetName));
}
#if U_HAVE_NL_LANGINFO_CODESET
/* When available, check nl_langinfo first because it usually gives more
useful names. It depends on LC_CTYPE and not LANG or LC_ALL */
{
const char *codeset = nl_langinfo(U_NL_LANGINFO_CODESET);
if (codeset != NULL) {
uprv_strncpy(codesetName, codeset, sizeof(codesetName));
codesetName[sizeof(codesetName)-1] = 0;
return codesetName;
}
}
#endif
/* Try a locale specified by the user.
This is usually underspecified and usually checked by setlocale already. */
if (*codesetName) {
uprv_memset(codesetName, 0, sizeof(codesetName));
}
localeName = uprv_getPOSIXID();
if (localeName != NULL && (name = (uprv_strchr(localeName, '.'))) != NULL) {
/* strip the locale name and look at the suffix only */
name = uprv_strncpy(codesetName, name+1, sizeof(codesetName));
codesetName[sizeof(codesetName)-1] = 0;
if ((euro = (uprv_strchr(name, '@'))) != NULL) {
*euro = 0;
}
/* if we can find the codset name, return that. */
if (*name) {
return name;
}
}
if (*codesetName == 0)
{
/* if the table lookup failed, return US ASCII (ISO 646). */