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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nscore.h"
#include "nsString.h"
#include "nsPosixLocale.h"
#include "mozilla/Sprintf.h"
#include "plstr.h"
#include "nsReadableUtils.h"
static bool
ParseLocaleString(const char* locale_string, char* language, char* country, char* extra, char separator);
nsresult
nsPosixLocale::GetPlatformLocale(const nsAString& locale, nsACString& posixLocale)
{
char country_code[MAX_COUNTRY_CODE_LEN+1];
char lang_code[MAX_LANGUAGE_CODE_LEN+1];
char extra[MAX_EXTRA_LEN+1];
char posix_locale[MAX_LOCALE_LEN+1];
NS_LossyConvertUTF16toASCII xp_locale(locale);
if (!xp_locale.IsEmpty()) {
if (!ParseLocaleString(xp_locale.get(),lang_code,country_code,extra,'-')) {
// strncpy(posixLocale,"C",length);
posixLocale = xp_locale; // use xp locale if parse failed
return NS_OK;
}
if (*country_code) {
if (*extra) {
SprintfLiteral(posix_locale,"%s_%s.%s",lang_code,country_code,extra);
}
else {
SprintfLiteral(posix_locale,"%s_%s",lang_code,country_code);
}
}
else {
if (*extra) {
SprintfLiteral(posix_locale,"%s.%s",lang_code,extra);
}
else {
SprintfLiteral(posix_locale,"%s",lang_code);
}
}
posixLocale = posix_locale;
return NS_OK;
}
return NS_ERROR_FAILURE;
}
nsresult
nsPosixLocale::GetXPLocale(const char* posixLocale, nsAString& locale)
{
char country_code[MAX_COUNTRY_CODE_LEN+1];
char lang_code[MAX_LANGUAGE_CODE_LEN+1];
char extra[MAX_EXTRA_LEN+1];
char posix_locale[MAX_LOCALE_LEN+1];
if (posixLocale!=nullptr) {
if (strcmp(posixLocale,"C")==0 || strcmp(posixLocale,"POSIX")==0) {
locale.AssignLiteral("en-US");
return NS_OK;
}
if (strcmp(posixLocale,"C.UTF-8")==0) {
locale.AssignLiteral("en-US.UTF-8");
return NS_OK;
}
if (!ParseLocaleString(posixLocale,lang_code,country_code,extra,'_')) {
// * locale = "x-user-defined";
// use posix if parse failed
CopyASCIItoUTF16(nsDependentCString(posixLocale), locale);
return NS_OK;
}
// Special case: substitute "nb" (Norwegian Bokmal) for macrolanguage
// code "no" (Norwegian)
if (nsDependentCString(lang_code).LowerCaseEqualsLiteral("no")) {
lang_code[1] = 'b';
}
if (*country_code) {
SprintfLiteral(posix_locale,"%s-%s",lang_code,country_code);
}
else {
SprintfLiteral(posix_locale,"%s",lang_code);
}
CopyASCIItoUTF16(nsDependentCString(posix_locale), locale);
return NS_OK;
}
return NS_ERROR_FAILURE;
}
//
// returns false/true depending on if it was of the form LL-CC.Extra
static bool
ParseLocaleString(const char* locale_string, char* language, char* country, char* extra, char separator)
{
const char *src = locale_string;
char modifier[MAX_EXTRA_LEN+1];
char *dest;
int dest_space, len;
*language = '\0';
*country = '\0';
*extra = '\0';
if (strlen(locale_string) < 2) {
return(false);
}
//
// parse the language part
//
dest = language;
dest_space = MAX_LANGUAGE_CODE_LEN;
while ((*src) && (isalpha(*src)) && (dest_space--)) {
*dest++ = tolower(*src++);
}
*dest = '\0';
len = dest - language;
if ((len != 2) && (len != 3)) {
NS_ASSERTION((len == 2) || (len == 3), "language code too short");
NS_ASSERTION(len < 3, "reminder: verify we can handle 3+ character language code in all parts of the system; eg: language packs");
*language = '\0';
return(false);
}
// check if all done
if (*src == '\0') {
return(true);
}
if ((*src != '_') && (*src != '-') && (*src != '.') && (*src != '@')) {
NS_ASSERTION(isalpha(*src), "language code too long");
NS_ASSERTION(!isalpha(*src), "unexpected language/country separator");
*language = '\0';
return(false);
}
//
// parse the country part
//
if ((*src == '_') || (*src == '-')) {
src++;
dest = country;
dest_space = MAX_COUNTRY_CODE_LEN;
while ((*src) && (isalpha(*src)) && (dest_space--)) {
*dest++ = toupper(*src++);
}
*dest = '\0';
len = dest - country;
if (len != 2) {
NS_ASSERTION(len == 2, "unexpected country code length");
*language = '\0';
*country = '\0';
return(false);
}
}
// check if all done
if (*src == '\0') {
return(true);
}
if ((*src != '.') && (*src != '@')) {
NS_ASSERTION(isalpha(*src), "country code too long");
NS_ASSERTION(!isalpha(*src), "unexpected country/extra separator");
*language = '\0';
*country = '\0';
return(false);
}
//
// handle the extra part
//
if (*src == '.') {
src++; // move past the extra part separator
dest = extra;
dest_space = MAX_EXTRA_LEN;
while ((*src) && (*src != '@') && (dest_space--)) {
*dest++ = *src++;
}
*dest = '\0';
len = dest - extra;
if (len < 1) {
NS_ASSERTION(len > 0, "found country/extra separator but no extra code");
*language = '\0';
*country = '\0';
*extra = '\0';
return(false);
}
}
// check if all done
if (*src == '\0') {
return(true);
}
//
// handle the modifier part
//
if (*src == '@') {
src++; // move past the modifier separator
NS_ASSERTION(strcmp("euro",src) == 0, "found non euro modifier");
dest = modifier;
dest_space = MAX_EXTRA_LEN;
while ((*src) && (dest_space--)) {
*dest++ = *src++;
}
*dest = '\0';
len = dest - modifier;
if (len < 1) {
NS_ASSERTION(len > 0, "found modifier separator but no modifier code");
*language = '\0';
*country = '\0';
*extra = '\0';
*modifier = '\0';
return(false);
}
}
// check if all done
if (*src == '\0') {
return(true);
}
NS_ASSERTION(*src == '\0', "extra/modifier code too long");
*language = '\0';
*country = '\0';
*extra = '\0';
return(false);
}
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