/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
* Jonathan Schleifer <js@heap.zone>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#include "config.h"
#include <locale.h>
#import "OFLocalization.h"
#import "OFString.h"
#import "OFArray.h"
#import "OFDictionary.h"
#import "OFInvalidArgumentException.h"
#import "OFInvalidEncodingException.h"
#ifdef OF_MORPHOS
# define BOOL EXEC_BOOL
# include <proto/dos.h>
# include <proto/locale.h>
# undef BOOL
#endif
static OFLocalization *sharedLocalization = nil;
#ifndef OF_MORPHOS
static void
parseLocale(char *locale, of_string_encoding_t *encoding,
OFString **language, OFString **territory)
{
if ((locale = of_strdup(locale)) == NULL)
return;
@try {
const of_string_encoding_t enc = OF_STRING_ENCODING_ASCII;
char *tmp;
/* We don't care for extras behind the @ */
if ((tmp = strrchr(locale, '@')) != NULL)
*tmp = '\0';
/* Encoding */
if ((tmp = strrchr(locale, '.')) != NULL) {
*tmp++ = '\0';
@try {
if (encoding != NULL)
*encoding = of_string_parse_encoding(
[OFString stringWithCString: tmp
encoding: enc]);
} @catch (OFInvalidEncodingException *e) {
}
}
/* Territory */
if ((tmp = strrchr(locale, '_')) != NULL) {
*tmp++ = '\0';
if (territory != NULL)
*territory = [OFString stringWithCString: tmp
encoding: enc];
}
if (language != NULL)
*language = [OFString stringWithCString: locale
encoding: enc];
} @finally {
free(locale);
}
}
#endif
@implementation OFLocalization
@synthesize language = _language, territory = _territory, encoding = _encoding;
@synthesize decimalPoint = _decimalPoint;
+ (instancetype)sharedLocalization
{
return sharedLocalization;
}
+ (OFString *)language
{
return [sharedLocalization language];
}
+ (OFString *)territory
{
return [sharedLocalization territory];
}
+ (of_string_encoding_t)encoding
{
return [sharedLocalization encoding];
}
+ (OFString *)decimalPoint
{
return [sharedLocalization decimalPoint];
}
#ifdef OF_HAVE_FILES
+ (void)addLanguageDirectory: (OFString *)path
{
[sharedLocalization addLanguageDirectory: path];
}
#endif
- (instancetype)init
{
self = [super init];
@try {
#ifndef OF_MORPHOS
char *locale, *messagesLocale = NULL;
_encoding = OF_STRING_ENCODING_UTF_8;
_decimalPoint = @".";
_localizedStrings = [[OFMutableArray alloc] init];
if ((locale = setlocale(LC_ALL, "")) != NULL)
_decimalPoint = [[OFString alloc]
initWithCString: localeconv()->decimal_point
encoding: _encoding];
# ifdef LC_MESSAGES
messagesLocale = setlocale(LC_MESSAGES, "");
# endif
if (messagesLocale == NULL)
messagesLocale = locale;
if (messagesLocale != NULL) {
void *pool = objc_autoreleasePoolPush();
parseLocale(messagesLocale, &_encoding,
&_language, &_language);
[_language retain];
[_territory retain];
objc_autoreleasePoolPop(pool);
}
#else
void *pool = objc_autoreleasePoolPush();
char buffer[32];
struct Locale *locale;
/*
* Returns an empty string on MorphOS + libnix, but still
* applies it so that printf etc. work as expected.
*/
setlocale(LC_ALL, "");
if (GetVar("CODEPAGE", buffer, sizeof(buffer), 0) > 0) {
of_string_encoding_t ASCII = OF_STRING_ENCODING_ASCII;
@try {
_encoding = of_string_parse_encoding(
[OFString stringWithCString: buffer
encoding: ASCII]);
} @catch (OFInvalidEncodingException *e) {
_encoding = OF_STRING_ENCODING_ISO_8859_1;
}
} else
_encoding = OF_STRING_ENCODING_ISO_8859_1;
/*
* Get it via localeconv() instead of from the Locale struct,
* to make sure we and printf etc. have the same expectations.
*/
_decimalPoint = [[OFString alloc]
initWithCString: localeconv()->decimal_point
encoding: _encoding];
_localizedStrings = [[OFMutableArray alloc] init];
if (GetVar("Language", buffer, sizeof(buffer), 0) > 0)
_language = [[OFString alloc]
initWithCString: buffer
encoding: _encoding];
locale = OpenLocale(NULL);
@try {
union {
uint32_t u32;
char c[4];
} territory;
size_t length;
territory.u32 =
OF_BSWAP32_IF_LE(locale->loc_CountryCode);
for (length = 0; length < 4; length++)
if (territory.c[length] == 0)
break;
_territory = [[OFString alloc]
initWithCString: territory.c
encoding: _encoding
length: length];
} @finally {
CloseLocale(locale);
}
objc_autoreleasePoolPop(pool);
#endif
} @catch (id e) {
[self release];
@throw e;
}
sharedLocalization = self;
return self;
}
- (void)dealloc
{
[_language release];
[_territory release];
[_decimalPoint release];
[_localizedStrings release];
[super dealloc];
}
#ifdef OF_HAVE_FILES
- (void)addLanguageDirectory: (OFString *)path
{
void *pool;
OFString *mapPath, *language, *territory, *languageFile;
OFDictionary *map;
if (_language == nil)
return;
pool = objc_autoreleasePoolPush();
mapPath = [path stringByAppendingPathComponent: @"languages.json"];
map = [[OFString stringWithContentsOfFile: mapPath] JSONValue];
language = [_language lowercaseString];
territory = [_territory lowercaseString];
if (territory == nil)
territory = @"";
languageFile = [[map objectForKey: language] objectForKey: territory];
if (languageFile == nil)
languageFile = [[map objectForKey: language]
objectForKey: @""];
if (languageFile == nil) {
objc_autoreleasePoolPop(pool);
return;
}
languageFile = [path stringByAppendingPathComponent:
[languageFile stringByAppendingString: @".json"]];
[_localizedStrings addObject:
[[OFString stringWithContentsOfFile: languageFile] JSONValue]];
objc_autoreleasePoolPop(pool);
}
#endif
- (OFString *)localizedStringForID: (OFConstantString *)ID
fallback: (OFConstantString *)fallback, ...
{
OFString *ret;
va_list args;
va_start(args, fallback);
ret = [self localizedStringForID: ID
fallback: fallback
arguments: args];
va_end(args);
return ret;
}
- (OFString *)localizedStringForID: (OFConstantString *)ID
fallback: (OFConstantString *)fallback
arguments: (va_list)arguments
{
OFMutableString *ret = [OFMutableString string];
void *pool = objc_autoreleasePoolPush();
const char *UTF8String = NULL;
size_t last, UTF8StringLength;
int state = 0;
for (OFDictionary *strings in _localizedStrings) {
id string = [strings objectForKey: ID];
if (string == nil)
continue;
if ([string isKindOfClass: [OFArray class]])
string = [string componentsJoinedByString: @""];
UTF8String = [string UTF8String];
UTF8StringLength = [string UTF8StringLength];
break;
}
if (UTF8String == NULL) {
UTF8String = [fallback UTF8String];
UTF8StringLength = [fallback UTF8StringLength];
}
state = 0;
last = 0;
for (size_t i = 0; i < UTF8StringLength; i++) {
switch (state) {
case 0:
if (UTF8String[i] == '%') {
[ret appendUTF8String: UTF8String + last
length: i - last];
last = i + 1;
state = 1;
}
break;
case 1:
if (UTF8String[i] == '[') {
last = i + 1;
state = 2;
} else {
[ret appendString: @"%"];
state = 0;
}
break;
case 2:
if (UTF8String[i] == ']') {
va_list argsCopy;
OFConstantString *name;
OFString *var = [OFString
stringWithUTF8String: UTF8String + last
length: i - last];
/*
* We loop, as most of the time, we only have
* one or maybe two variables, meaning looping
* is faster than constructing a dictionary.
*/
va_copy(argsCopy, arguments);
while ((name = va_arg(argsCopy,
OFConstantString *)) != nil) {
id value = va_arg(argsCopy, id);
if (value == nil)
@throw
[OFInvalidArgumentException
exception];
if ([name isEqual: var]) {
[ret appendString:
[value description]];
break;
}
}
last = i + 1;
state = 0;
}
break;
}
}
switch (state) {
case 1:
[ret appendString: @"%"];
/* Explicit fall-through */
case 0:
[ret appendUTF8String: UTF8String + last
length: UTF8StringLength - last];
break;
}
objc_autoreleasePoolPop(pool);
[ret makeImmutable];
return ret;
}
@end