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locale_methods.c
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/*
+----------------------------------------------------------------------+
| PHP Version 7 |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Kirti Velankar <[email protected]> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <unicode/ustring.h>
#include <unicode/udata.h>
#include <unicode/putil.h>
#include <unicode/ures.h>
#include "php_intl.h"
#include "locale.h"
#include "locale_class.h"
#include "locale_methods.h"
#include "intl_convert.h"
#include "intl_data.h"
#include <zend_API.h>
#include <zend.h>
#include <php.h>
#include "main/php_ini.h"
#include "zend_smart_str.h"
ZEND_EXTERN_MODULE_GLOBALS( intl )
/* Sizes required for the strings "variant15" , "extlang11", "private12" etc. */
#define SEPARATOR "_"
#define SEPARATOR1 "-"
#define DELIMITER "-_"
#define EXTLANG_PREFIX "a"
#define PRIVATE_PREFIX "x"
#define DISP_NAME "name"
#define MAX_NO_VARIANT 15
#define MAX_NO_EXTLANG 3
#define MAX_NO_PRIVATE 15
#define MAX_NO_LOOKUP_LANG_TAG 100
#define LOC_NOT_FOUND 1
/* Sizes required for the strings "variant15" , "extlang3", "private12" etc. */
#define VARIANT_KEYNAME_LEN 11
#define EXTLANG_KEYNAME_LEN 10
#define PRIVATE_KEYNAME_LEN 11
/* Based on IANA registry at the time of writing this code
*
*/
static const char * const LOC_GRANDFATHERED[] = {
"art-lojban", "i-klingon", "i-lux", "i-navajo", "no-bok", "no-nyn",
"cel-gaulish", "en-GB-oed", "i-ami",
"i-bnn", "i-default", "i-enochian",
"i-mingo", "i-pwn", "i-tao",
"i-tay", "i-tsu", "sgn-BE-fr",
"sgn-BE-nl", "sgn-CH-de", "zh-cmn",
"zh-cmn-Hans", "zh-cmn-Hant", "zh-gan" ,
"zh-guoyu", "zh-hakka", "zh-min",
"zh-min-nan", "zh-wuu", "zh-xiang",
"zh-yue", NULL
};
/* Based on IANA registry at the time of writing this code
* This array lists the preferred values for the grandfathered tags if applicable
* This is in sync with the array LOC_GRANDFATHERED
* e.g. the offsets of the grandfathered tags match the offset of the preferred value
*/
static const int LOC_PREFERRED_GRANDFATHERED_LEN = 6;
static const char * const LOC_PREFERRED_GRANDFATHERED[] = {
"jbo", "tlh", "lb",
"nv", "nb", "nn",
NULL
};
/*returns TRUE if a is an ID separator FALSE otherwise*/
#define isIDSeparator(a) (a == '_' || a == '-')
#define isKeywordSeparator(a) (a == '@' )
#define isEndOfTag(a) (a == '\0' )
#define isPrefixLetter(a) ((a=='x')||(a=='X')||(a=='i')||(a=='I'))
/*returns TRUE if one of the special prefixes is here (s=string)
'x-' or 'i-' */
#define isIDPrefix(s) (isPrefixLetter(s[0])&&isIDSeparator(s[1]))
#define isKeywordPrefix(s) ( isKeywordSeparator(s[0]) )
/* Dot terminates it because of POSIX form where dot precedes the codepage
* except for variant */
#define isTerminator(a) ((a==0)||(a=='.')||(a=='@'))
/* {{{ return the offset of 'key' in the array 'list'.
* returns -1 if not present */
static int16_t findOffset(const char* const* list, const char* key)
{
const char* const* anchor = list;
while (*list != NULL) {
if (strcmp(key, *list) == 0) {
return (int16_t)(list - anchor);
}
list++;
}
return -1;
}
/*}}}*/
static char* getPreferredTag(const char* gf_tag)
{
char* result = NULL;
zend_off_t grOffset = 0;
grOffset = findOffset( LOC_GRANDFATHERED ,gf_tag);
if(grOffset < 0) {
return NULL;
}
if( grOffset < LOC_PREFERRED_GRANDFATHERED_LEN ){
/* return preferred tag */
result = estrdup( LOC_PREFERRED_GRANDFATHERED[grOffset] );
} else {
/* Return correct grandfathered language tag */
result = estrdup( LOC_GRANDFATHERED[grOffset] );
}
return result;
}
/* {{{
* returns the position of next token for lookup
* or -1 if no token
* strtokr equivalent search for token in reverse direction
*/
static zend_off_t getStrrtokenPos(char* str, zend_off_t savedPos)
{
zend_off_t result =-1;
zend_off_t i;
for(i=savedPos-1; i>=0; i--) {
if(isIDSeparator(*(str+i)) ){
/* delimiter found; check for singleton */
if(i>=2 && isIDSeparator(*(str+i-2)) ){
/* a singleton; so send the position of token before the singleton */
result = i-2;
} else {
result = i;
}
break;
}
}
if(result < 1){
/* Just in case inavlid locale e.g. '-x-xyz' or '-sl_Latn' */
result =-1;
}
return result;
}
/* }}} */
/* {{{
* returns the position of a singleton if present
* returns -1 if no singleton
* strtok equivalent search for singleton
*/
static zend_off_t getSingletonPos(const char* str)
{
zend_off_t result =-1;
zend_off_t i=0;
size_t len = 0;
if( str && ((len=strlen(str))>0) ){
for( i=0; (size_t)i < len ; i++){
if( isIDSeparator(*(str+i)) ){
if( i==1){
/* string is of the form x-avy or a-prv1 */
result =0;
break;
} else {
/* delimiter found; check for singleton */
if( isIDSeparator(*(str+i+2)) ){
/* a singleton; so send the position of separator before singleton */
result = i+1;
break;
}
}
}
}/* end of for */
}
return result;
}
/* }}} */
/* {{{ proto static string Locale::getDefault( )
Get default locale */
/* }}} */
/* {{{ proto static string locale_get_default( )
Get default locale */
PHP_NAMED_FUNCTION(zif_locale_get_default)
{
RETURN_STRING( intl_locale_get_default( ) );
}
/* }}} */
/* {{{ proto static string Locale::setDefault( string $locale )
Set default locale */
/* }}} */
/* {{{ proto static string locale_set_default( string $locale )
Set default locale */
PHP_NAMED_FUNCTION(zif_locale_set_default)
{
zend_string* locale_name;
zend_string *ini_name;
char *default_locale = NULL;
if(zend_parse_parameters( ZEND_NUM_ARGS(), "S", &locale_name) == FAILURE)
{
intl_error_set( NULL, U_ILLEGAL_ARGUMENT_ERROR,
"locale_set_default: unable to parse input params", 0 );
RETURN_FALSE;
}
if (ZSTR_LEN(locale_name) == 0) {
default_locale = (char *)uloc_getDefault();
locale_name = zend_string_init(default_locale, strlen(default_locale), 0);
}
ini_name = zend_string_init(LOCALE_INI_NAME, sizeof(LOCALE_INI_NAME) - 1, 0);
zend_alter_ini_entry(ini_name, locale_name, PHP_INI_USER, PHP_INI_STAGE_RUNTIME);
zend_string_release(ini_name);
if (default_locale != NULL) {
zend_string_release(locale_name);
}
RETURN_TRUE;
}
/* }}} */
/* {{{
* Gets the value from ICU
* common code shared by get_primary_language,get_script or get_region or get_variant
* result = 0 if error, 1 if successful , -1 if no value
*/
static zend_string* get_icu_value_internal( const char* loc_name , char* tag_name, int* result , int fromParseLocale)
{
zend_string* tag_value = NULL;
int32_t tag_value_len = 512;
zend_off_t singletonPos = 0;
char* mod_loc_name = NULL;
zend_off_t grOffset = 0;
int32_t buflen = 512;
UErrorCode status = U_ZERO_ERROR;
if( strcmp(tag_name, LOC_CANONICALIZE_TAG) != 0 ){
/* Handle grandfathered languages */
grOffset = findOffset( LOC_GRANDFATHERED , loc_name );
if( grOffset >= 0 ){
if( strcmp(tag_name , LOC_LANG_TAG)==0 ){
return zend_string_init(loc_name, strlen(loc_name), 0);
} else {
/* Since Grandfathered , no value , do nothing , retutn NULL */
return NULL;
}
}
if( fromParseLocale==1 ){
/* Handle singletons */
if( strcmp(tag_name , LOC_LANG_TAG)==0 ){
if( strlen(loc_name)>1 && (isIDPrefix(loc_name) == 1) ){
return zend_string_init(loc_name, strlen(loc_name), 0);
}
}
singletonPos = getSingletonPos( loc_name );
if( singletonPos == 0){
/* singleton at start of script, region , variant etc.
* or invalid singleton at start of language */
return NULL;
} else if( singletonPos > 0 ){
/* singleton at some position except at start
* strip off the singleton and rest of the loc_name */
mod_loc_name = estrndup ( loc_name , singletonPos-1);
}
} /* end of if fromParse */
} /* end of if != LOC_CANONICAL_TAG */
if( mod_loc_name == NULL){
mod_loc_name = estrdup(loc_name );
}
/* Proceed to ICU */
do{
if (tag_value) {
tag_value = zend_string_realloc( tag_value , buflen, 0);
} else {
tag_value = zend_string_alloc( buflen, 0);
}
tag_value_len = buflen;
if( strcmp(tag_name , LOC_SCRIPT_TAG)==0 ){
buflen = uloc_getScript ( mod_loc_name , tag_value->val , tag_value_len , &status);
}
if( strcmp(tag_name , LOC_LANG_TAG )==0 ){
buflen = uloc_getLanguage ( mod_loc_name , tag_value->val , tag_value_len , &status);
}
if( strcmp(tag_name , LOC_REGION_TAG)==0 ){
buflen = uloc_getCountry ( mod_loc_name , tag_value->val , tag_value_len , &status);
}
if( strcmp(tag_name , LOC_VARIANT_TAG)==0 ){
buflen = uloc_getVariant ( mod_loc_name , tag_value->val , tag_value_len , &status);
}
if( strcmp(tag_name , LOC_CANONICALIZE_TAG)==0 ){
buflen = uloc_canonicalize ( mod_loc_name , tag_value->val , tag_value_len , &status);
}
if( U_FAILURE( status ) ) {
if( status == U_BUFFER_OVERFLOW_ERROR ) {
status = U_ZERO_ERROR;
buflen++; /* add space for \0 */
continue;
}
/* Error in retriving data */
*result = 0;
if( tag_value ){
zend_string_release( tag_value );
}
if( mod_loc_name ){
efree( mod_loc_name);
}
return NULL;
}
} while( buflen > tag_value_len );
if( buflen ==0 ){
/* No value found */
*result = -1;
if( tag_value ){
zend_string_release( tag_value );
}
if( mod_loc_name ){
efree( mod_loc_name);
}
return NULL;
} else {
*result = 1;
}
if( mod_loc_name ){
efree( mod_loc_name);
}
tag_value->len = strlen(tag_value->val);
return tag_value;
}
/* }}} */
/* {{{
* Gets the value from ICU , called when PHP userspace function is called
* common code shared by get_primary_language,get_script or get_region or get_variant
*/
static void get_icu_value_src_php( char* tag_name, INTERNAL_FUNCTION_PARAMETERS)
{
const char* loc_name = NULL;
size_t loc_name_len = 0;
zend_string* tag_value = NULL;
char* empty_result = "";
int result = 0;
char* msg = NULL;
UErrorCode status = U_ZERO_ERROR;
intl_error_reset( NULL );
if(zend_parse_parameters( ZEND_NUM_ARGS(), "s",
&loc_name ,&loc_name_len ) == FAILURE) {
spprintf(&msg , 0, "locale_get_%s : unable to parse input params", tag_name );
intl_error_set( NULL, U_ILLEGAL_ARGUMENT_ERROR, msg , 1 );
efree(msg);
RETURN_FALSE;
}
if(loc_name_len == 0) {
loc_name = intl_locale_get_default();
}
/* Call ICU get */
tag_value = get_icu_value_internal( loc_name , tag_name , &result ,0);
/* No value found */
if( result == -1 ) {
if( tag_value){
zend_string_release( tag_value);
}
RETURN_STRING( empty_result);
}
/* value found */
if( tag_value){
RETVAL_STR( tag_value );
return;
}
/* Error encountered while fetching the value */
if( result ==0) {
spprintf(&msg , 0, "locale_get_%s : unable to get locale %s", tag_name , tag_name );
intl_error_set( NULL, status, msg , 1 );
efree(msg);
RETURN_NULL();
}
}
/* }}} */
/* {{{ proto static string Locale::getScript($locale)
* gets the script for the $locale
}}} */
/* {{{ proto static string locale_get_script($locale)
* gets the script for the $locale
*/
PHP_FUNCTION( locale_get_script )
{
get_icu_value_src_php( LOC_SCRIPT_TAG , INTERNAL_FUNCTION_PARAM_PASSTHRU );
}
/* }}} */
/* {{{ proto static string Locale::getRegion($locale)
* gets the region for the $locale
}}} */
/* {{{ proto static string locale_get_region($locale)
* gets the region for the $locale
*/
PHP_FUNCTION( locale_get_region )
{
get_icu_value_src_php( LOC_REGION_TAG , INTERNAL_FUNCTION_PARAM_PASSTHRU );
}
/* }}} */
/* {{{ proto static string Locale::getPrimaryLanguage($locale)
* gets the primary language for the $locale
}}} */
/* {{{ proto static string locale_get_primary_language($locale)
* gets the primary language for the $locale
*/
PHP_FUNCTION(locale_get_primary_language )
{
get_icu_value_src_php( LOC_LANG_TAG , INTERNAL_FUNCTION_PARAM_PASSTHRU );
}
/* }}} */
/* {{{
* common code shared by display_xyz functions to get the value from ICU
}}} */
static void get_icu_disp_value_src_php( char* tag_name, INTERNAL_FUNCTION_PARAMETERS)
{
const char* loc_name = NULL;
size_t loc_name_len = 0;
const char* disp_loc_name = NULL;
size_t disp_loc_name_len = 0;
int free_loc_name = 0;
UChar* disp_name = NULL;
int32_t disp_name_len = 0;
char* mod_loc_name = NULL;
int32_t buflen = 512;
UErrorCode status = U_ZERO_ERROR;
zend_string* u8str;
char* msg = NULL;
int grOffset = 0;
intl_error_reset( NULL );
if(zend_parse_parameters( ZEND_NUM_ARGS(), "s|s",
&loc_name, &loc_name_len ,
&disp_loc_name ,&disp_loc_name_len ) == FAILURE)
{
spprintf(&msg , 0, "locale_get_display_%s : unable to parse input params", tag_name );
intl_error_set( NULL, U_ILLEGAL_ARGUMENT_ERROR, msg , 1 );
efree(msg);
RETURN_FALSE;
}
if(loc_name_len > ULOC_FULLNAME_CAPACITY) {
/* See bug 67397: overlong locale names cause trouble in uloc_getDisplayName */
spprintf(&msg , 0, "locale_get_display_%s : name too long", tag_name );
intl_error_set( NULL, U_ILLEGAL_ARGUMENT_ERROR, msg , 1 );
efree(msg);
RETURN_FALSE;
}
if(loc_name_len == 0) {
loc_name = intl_locale_get_default();
}
if( strcmp(tag_name, DISP_NAME) != 0 ){
/* Handle grandfathered languages */
grOffset = findOffset( LOC_GRANDFATHERED , loc_name );
if( grOffset >= 0 ){
if( strcmp(tag_name , LOC_LANG_TAG)==0 ){
mod_loc_name = getPreferredTag( loc_name );
} else {
/* Since Grandfathered, no value, do nothing, retutn NULL */
RETURN_FALSE;
}
}
} /* end of if != LOC_CANONICAL_TAG */
if( mod_loc_name==NULL ){
mod_loc_name = estrdup( loc_name );
}
/* Check if disp_loc_name passed , if not use default locale */
if( !disp_loc_name){
disp_loc_name = estrdup(intl_locale_get_default());
free_loc_name = 1;
}
/* Get the disp_value for the given locale */
do{
disp_name = erealloc( disp_name , buflen * sizeof(UChar) );
disp_name_len = buflen;
if( strcmp(tag_name , LOC_LANG_TAG)==0 ){
buflen = uloc_getDisplayLanguage ( mod_loc_name , disp_loc_name , disp_name , disp_name_len , &status);
} else if( strcmp(tag_name , LOC_SCRIPT_TAG)==0 ){
buflen = uloc_getDisplayScript ( mod_loc_name , disp_loc_name , disp_name , disp_name_len , &status);
} else if( strcmp(tag_name , LOC_REGION_TAG)==0 ){
buflen = uloc_getDisplayCountry ( mod_loc_name , disp_loc_name , disp_name , disp_name_len , &status);
} else if( strcmp(tag_name , LOC_VARIANT_TAG)==0 ){
buflen = uloc_getDisplayVariant ( mod_loc_name , disp_loc_name , disp_name , disp_name_len , &status);
} else if( strcmp(tag_name , DISP_NAME)==0 ){
buflen = uloc_getDisplayName ( mod_loc_name , disp_loc_name , disp_name , disp_name_len , &status);
}
/* U_STRING_NOT_TERMINATED_WARNING is admissible here; don't look for it */
if( U_FAILURE( status ) )
{
if( status == U_BUFFER_OVERFLOW_ERROR )
{
status = U_ZERO_ERROR;
continue;
}
spprintf(&msg, 0, "locale_get_display_%s : unable to get locale %s", tag_name , tag_name );
intl_error_set( NULL, status, msg , 1 );
efree(msg);
if( disp_name){
efree( disp_name );
}
if( mod_loc_name){
efree( mod_loc_name );
}
if (free_loc_name) {
efree((void *)disp_loc_name);
disp_loc_name = NULL;
}
RETURN_FALSE;
}
} while( buflen > disp_name_len );
if( mod_loc_name){
efree( mod_loc_name );
}
if (free_loc_name) {
efree((void *)disp_loc_name);
disp_loc_name = NULL;
}
/* Convert display locale name from UTF-16 to UTF-8. */
u8str = intl_convert_utf16_to_utf8(disp_name, buflen, &status );
efree( disp_name );
if( !u8str )
{
spprintf(&msg, 0, "locale_get_display_%s :error converting display name for %s to UTF-8", tag_name , tag_name );
intl_error_set( NULL, status, msg , 1 );
efree(msg);
RETURN_FALSE;
}
RETVAL_NEW_STR( u8str );
}
/* }}} */
/* {{{ proto static string Locale::getDisplayName($locale[, $in_locale = null])
* gets the name for the $locale in $in_locale or default_locale
}}} */
/* {{{ proto static string get_display_name($locale[, $in_locale = null])
* gets the name for the $locale in $in_locale or default_locale
*/
PHP_FUNCTION(locale_get_display_name)
{
get_icu_disp_value_src_php( DISP_NAME , INTERNAL_FUNCTION_PARAM_PASSTHRU );
}
/* }}} */
/* {{{ proto static string Locale::getDisplayLanguage($locale[, $in_locale = null])
* gets the language for the $locale in $in_locale or default_locale
}}} */
/* {{{ proto static string get_display_language($locale[, $in_locale = null])
* gets the language for the $locale in $in_locale or default_locale
*/
PHP_FUNCTION(locale_get_display_language)
{
get_icu_disp_value_src_php( LOC_LANG_TAG , INTERNAL_FUNCTION_PARAM_PASSTHRU );
}
/* }}} */
/* {{{ proto static string Locale::getDisplayScript($locale, $in_locale = null)
* gets the script for the $locale in $in_locale or default_locale
}}} */
/* {{{ proto static string get_display_script($locale, $in_locale = null)
* gets the script for the $locale in $in_locale or default_locale
*/
PHP_FUNCTION(locale_get_display_script)
{
get_icu_disp_value_src_php( LOC_SCRIPT_TAG , INTERNAL_FUNCTION_PARAM_PASSTHRU );
}
/* }}} */
/* {{{ proto static string Locale::getDisplayRegion($locale, $in_locale = null)
* gets the region for the $locale in $in_locale or default_locale
}}} */
/* {{{ proto static string get_display_region($locale, $in_locale = null)
* gets the region for the $locale in $in_locale or default_locale
*/
PHP_FUNCTION(locale_get_display_region)
{
get_icu_disp_value_src_php( LOC_REGION_TAG , INTERNAL_FUNCTION_PARAM_PASSTHRU );
}
/* }}} */
/* {{{
* proto static string Locale::getDisplayVariant($locale, $in_locale = null)
* gets the variant for the $locale in $in_locale or default_locale
}}} */
/* {{{
* proto static string get_display_variant($locale, $in_locale = null)
* gets the variant for the $locale in $in_locale or default_locale
*/
PHP_FUNCTION(locale_get_display_variant)
{
get_icu_disp_value_src_php( LOC_VARIANT_TAG , INTERNAL_FUNCTION_PARAM_PASSTHRU );
}
/* }}} */
/* {{{ proto static array getKeywords(string $locale) {
* return an associative array containing keyword-value
* pairs for this locale. The keys are keys to the array (doh!)
* }}}*/
/* {{{ proto static array locale_get_keywords(string $locale) {
* return an associative array containing keyword-value
* pairs for this locale. The keys are keys to the array (doh!)
*/
PHP_FUNCTION( locale_get_keywords )
{
UEnumeration* e = NULL;
UErrorCode status = U_ZERO_ERROR;
const char* kw_key = NULL;
int32_t kw_key_len = 0;
const char* loc_name = NULL;
size_t loc_name_len = 0;
/*
ICU expects the buffer to be allocated before calling the function
and so the buffer size has been explicitly specified
ICU uloc.h #define ULOC_KEYWORD_AND_VALUES_CAPACITY 100
hence the kw_value buffer size is 100
*/
zend_string *kw_value_str;
int32_t kw_value_len = 100;
intl_error_reset( NULL );
if(zend_parse_parameters( ZEND_NUM_ARGS(), "s",
&loc_name, &loc_name_len ) == FAILURE)
{
intl_error_set( NULL, U_ILLEGAL_ARGUMENT_ERROR,
"locale_get_keywords: unable to parse input params", 0 );
RETURN_FALSE;
}
if(loc_name_len == 0) {
loc_name = intl_locale_get_default();
}
/* Get the keywords */
e = uloc_openKeywords( loc_name, &status );
if( e != NULL )
{
/* Traverse it, filling the return array. */
array_init( return_value );
while( ( kw_key = uenum_next( e, &kw_key_len, &status ) ) != NULL ){
kw_value_len = 100;
kw_value_str = zend_string_alloc(kw_value_len, 0);
/* Get the keyword value for each keyword */
kw_value_len=uloc_getKeywordValue( loc_name, kw_key, ZSTR_VAL(kw_value_str), kw_value_len, &status );
if (status == U_BUFFER_OVERFLOW_ERROR) {
status = U_ZERO_ERROR;
kw_value_str = zend_string_extend(kw_value_str, kw_value_len, 0);
kw_value_len=uloc_getKeywordValue( loc_name,kw_key, ZSTR_VAL(kw_value_str), kw_value_len+1, &status );
} else if(!U_FAILURE(status)) {
kw_value_str = zend_string_truncate(kw_value_str, kw_value_len, 0);
}
if (U_FAILURE(status)) {
intl_error_set( NULL, U_ILLEGAL_ARGUMENT_ERROR, "locale_get_keywords: Error encountered while getting the keyword value for the keyword", 0 );
if( kw_value_str){
zend_string_free( kw_value_str );
}
zval_dtor(return_value);
RETURN_FALSE;
}
add_assoc_str( return_value, (char *)kw_key, kw_value_str);
} /* end of while */
} /* end of if e!=NULL */
uenum_close( e );
}
/* }}} */
/* {{{ proto static string Locale::canonicalize($locale)
* @return string the canonicalized locale
* }}} */
/* {{{ proto static string locale_canonicalize(Locale $loc, string $locale)
* @param string $locale The locale string to canonicalize
*/
PHP_FUNCTION(locale_canonicalize)
{
get_icu_value_src_php( LOC_CANONICALIZE_TAG , INTERNAL_FUNCTION_PARAM_PASSTHRU );
}
/* }}} */
/* {{{ append_key_value
* Internal function which is called from locale_compose
* gets the value for the key_name and appends to the loc_name
* returns 1 if successful , -1 if not found ,
* 0 if array element is not a string , -2 if buffer-overflow
*/
static int append_key_value(smart_str* loc_name, HashTable* hash_arr, char* key_name)
{
zval *ele_value;
if ((ele_value = zend_hash_str_find(hash_arr , key_name, strlen(key_name))) != NULL ) {
if(Z_TYPE_P(ele_value)!= IS_STRING ){
/* element value is not a string */
return FAILURE;
}
if(strcmp(key_name, LOC_LANG_TAG) != 0 &&
strcmp(key_name, LOC_GRANDFATHERED_LANG_TAG)!=0 ) {
/* not lang or grandfathered tag */
smart_str_appendl(loc_name, SEPARATOR , sizeof(SEPARATOR)-1);
}
smart_str_appendl(loc_name, Z_STRVAL_P(ele_value) , Z_STRLEN_P(ele_value));
return SUCCESS;
}
return LOC_NOT_FOUND;
}
/* }}} */
/* {{{ append_prefix , appends the prefix needed
* e.g. private adds 'x'
*/
static void add_prefix(smart_str* loc_name, char* key_name)
{
if( strncmp(key_name , LOC_PRIVATE_TAG , 7) == 0 ){
smart_str_appendl(loc_name, SEPARATOR , sizeof(SEPARATOR)-1);
smart_str_appendl(loc_name, PRIVATE_PREFIX , sizeof(PRIVATE_PREFIX)-1);
}
}
/* }}} */
/* {{{ append_multiple_key_values
* Internal function which is called from locale_compose
* gets the multiple values for the key_name and appends to the loc_name
* used for 'variant','extlang','private'
* returns 1 if successful , -1 if not found ,
* 0 if array element is not a string , -2 if buffer-overflow
*/
static int append_multiple_key_values(smart_str* loc_name, HashTable* hash_arr, char* key_name)
{
zval *ele_value;
int i = 0;
int isFirstSubtag = 0;
int max_value = 0;
/* Variant/ Extlang/Private etc. */
if ((ele_value = zend_hash_str_find( hash_arr , key_name , strlen(key_name))) != NULL) {
if( Z_TYPE_P(ele_value) == IS_STRING ){
add_prefix( loc_name , key_name);
smart_str_appendl(loc_name, SEPARATOR , sizeof(SEPARATOR)-1);
smart_str_appendl(loc_name, Z_STRVAL_P(ele_value) , Z_STRLEN_P(ele_value));
return SUCCESS;
} else if(Z_TYPE_P(ele_value) == IS_ARRAY ) {
HashTable *arr = Z_ARRVAL_P(ele_value);
zval *data;
ZEND_HASH_FOREACH_VAL(arr, data) {
if(Z_TYPE_P(data) != IS_STRING) {
return FAILURE;
}
if (isFirstSubtag++ == 0){
add_prefix(loc_name , key_name);
}
smart_str_appendl(loc_name, SEPARATOR , sizeof(SEPARATOR)-1);
smart_str_appendl(loc_name, Z_STRVAL_P(data) , Z_STRLEN_P(data));
} ZEND_HASH_FOREACH_END();
return SUCCESS;
} else {
return FAILURE;
}
} else {
char cur_key_name[31];
/* Decide the max_value: the max. no. of elements allowed */
if( strcmp(key_name , LOC_VARIANT_TAG) ==0 ){
max_value = MAX_NO_VARIANT;
}
if( strcmp(key_name , LOC_EXTLANG_TAG) ==0 ){
max_value = MAX_NO_EXTLANG;
}
if( strcmp(key_name , LOC_PRIVATE_TAG) ==0 ){
max_value = MAX_NO_PRIVATE;
}
/* Multiple variant values as variant0, variant1 ,variant2 */
isFirstSubtag = 0;
for( i=0 ; i< max_value; i++ ){
snprintf( cur_key_name , 30, "%s%d", key_name , i);
if ((ele_value = zend_hash_str_find( hash_arr , cur_key_name , strlen(cur_key_name))) != NULL) {
if( Z_TYPE_P(ele_value)!= IS_STRING ){
/* variant is not a string */
return FAILURE;
}
/* Add the contents */
if (isFirstSubtag++ == 0){
add_prefix(loc_name , cur_key_name);
}
smart_str_appendl(loc_name, SEPARATOR , sizeof(SEPARATOR)-1);
smart_str_appendl(loc_name, Z_STRVAL_P(ele_value) , Z_STRLEN_P(ele_value));
}
} /* end of for */
} /* end of else */
return SUCCESS;
}
/* }}} */
/*{{{
* If applicable sets error message and aborts locale_compose gracefully
* returns 0 if locale_compose needs to be aborted
* otherwise returns 1
*/
static int handleAppendResult( int result, smart_str* loc_name)
{
intl_error_reset( NULL );
if( result == FAILURE) {
intl_error_set( NULL, U_ILLEGAL_ARGUMENT_ERROR,
"locale_compose: parameter array element is not a string", 0 );
smart_str_free(loc_name);
return 0;
}
return 1;
}
/* }}} */
#define RETURN_SMART_STR(str) smart_str_0((str)); RETURN_NEW_STR((str)->s)
/* {{{ proto static string Locale::composeLocale($array)
* Creates a locale by combining the parts of locale-ID passed
* }}} */
/* {{{ proto static string compose_locale($array)
* Creates a locale by combining the parts of locale-ID passed
* }}} */
PHP_FUNCTION(locale_compose)
{
smart_str loc_name_s = {0};
smart_str *loc_name = &loc_name_s;
zval* arr = NULL;
HashTable* hash_arr = NULL;
int result = 0;
intl_error_reset( NULL );
if(zend_parse_parameters( ZEND_NUM_ARGS(), "a",
&arr) == FAILURE)
{
intl_error_set( NULL, U_ILLEGAL_ARGUMENT_ERROR,
"locale_compose: unable to parse input params", 0 );
RETURN_FALSE;
}
hash_arr = Z_ARRVAL_P( arr );
if( !hash_arr || zend_hash_num_elements( hash_arr ) == 0 )
RETURN_FALSE;
/* Check for grandfathered first */
result = append_key_value(loc_name, hash_arr, LOC_GRANDFATHERED_LANG_TAG);
if( result == SUCCESS){
RETURN_SMART_STR(loc_name);
}
if( !handleAppendResult( result, loc_name)){
RETURN_FALSE;
}
/* Not grandfathered */
result = append_key_value(loc_name, hash_arr , LOC_LANG_TAG);
if( result == LOC_NOT_FOUND ){
intl_error_set( NULL, U_ILLEGAL_ARGUMENT_ERROR,
"locale_compose: parameter array does not contain 'language' tag.", 0 );
smart_str_free(loc_name);
RETURN_FALSE;
}
if( !handleAppendResult( result, loc_name)){
RETURN_FALSE;
}
/* Extlang */
result = append_multiple_key_values(loc_name, hash_arr , LOC_EXTLANG_TAG);
if( !handleAppendResult( result, loc_name)){
RETURN_FALSE;
}
/* Script */
result = append_key_value(loc_name, hash_arr , LOC_SCRIPT_TAG);
if( !handleAppendResult( result, loc_name)){
RETURN_FALSE;
}
/* Region */
result = append_key_value( loc_name, hash_arr , LOC_REGION_TAG);
if( !handleAppendResult( result, loc_name)){
RETURN_FALSE;
}
/* Variant */
result = append_multiple_key_values( loc_name, hash_arr , LOC_VARIANT_TAG);
if( !handleAppendResult( result, loc_name)){
RETURN_FALSE;
}
/* Private */
result = append_multiple_key_values( loc_name, hash_arr , LOC_PRIVATE_TAG);
if( !handleAppendResult( result, loc_name)){
RETURN_FALSE;
}
RETURN_SMART_STR(loc_name);
}
/* }}} */
/*{{{
* Parses the locale and returns private subtags if existing
* else returns NULL
* e.g. for locale='en_US-x-prv1-prv2-prv3'
* returns a pointer to the string 'prv1-prv2-prv3'
*/
static zend_string* get_private_subtags(const char* loc_name)
{
zend_string* result = NULL;
zend_off_t singletonPos = 0;
size_t len = 0;
const char* mod_loc_name =NULL;
if( loc_name && (len = strlen(loc_name)>0 ) ){