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comparison: intl/locale/src/unix/nsCollationUnix.cpp
intl/locale/src/unix/nsCollationUnix.cpp
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #include <locale.h> | |
| 7 #include "prmem.h" | |
| 8 #include "nsCollationUnix.h" | |
| 9 #include "nsIServiceManager.h" | |
| 10 #include "nsIComponentManager.h" | |
| 11 #include "nsILocaleService.h" | |
| 12 #include "nsIPlatformCharset.h" | |
| 13 #include "nsPosixLocale.h" | |
| 14 #include "nsCOMPtr.h" | |
| 15 #include "nsUnicharUtils.h" | |
| 16 #include "nsCRT.h" | |
| 17 //#define DEBUG_UNIX_COLLATION | |
| 18 | |
| 19 inline void nsCollationUnix::DoSetLocale() | |
| 20 { | |
| 21 char *locale = setlocale(LC_COLLATE, nullptr); | |
| 22 mSavedLocale.Assign(locale ? locale : ""); | |
| 23 if (!mSavedLocale.EqualsIgnoreCase(mLocale.get())) { | |
| 24 (void) setlocale(LC_COLLATE, PromiseFlatCString(Substring(mLocale,0,MAX_LOCALE_LEN)).get()); | |
| 25 } | |
| 26 } | |
| 27 | |
| 28 inline void nsCollationUnix::DoRestoreLocale() | |
| 29 { | |
| 30 if (!mSavedLocale.EqualsIgnoreCase(mLocale.get())) { | |
| 31 (void) setlocale(LC_COLLATE, PromiseFlatCString(Substring(mSavedLocale,0,MAX_LOCALE_LEN)).get()); | |
| 32 } | |
| 33 } | |
| 34 | |
| 35 nsCollationUnix::nsCollationUnix() : mCollation(nullptr) | |
| 36 { | |
| 37 } | |
| 38 | |
| 39 nsCollationUnix::~nsCollationUnix() | |
| 40 { | |
| 41 if (mCollation) | |
| 42 delete mCollation; | |
| 43 } | |
| 44 | |
| 45 NS_IMPL_ISUPPORTS(nsCollationUnix, nsICollation) | |
| 46 | |
| 47 nsresult nsCollationUnix::Initialize(nsILocale* locale) | |
| 48 { | |
| 49 #define kPlatformLocaleLength 64 | |
| 50 NS_ASSERTION(!mCollation, "Should only be initialized once"); | |
| 51 | |
| 52 nsresult res; | |
| 53 | |
| 54 mCollation = new nsCollation; | |
| 55 | |
| 56 // default platform locale | |
| 57 mLocale.Assign('C'); | |
| 58 | |
| 59 nsAutoString localeStr; | |
| 60 NS_NAMED_LITERAL_STRING(aCategory, "NSILOCALE_COLLATE##PLATFORM"); | |
| 61 | |
| 62 // get locale string, use app default if no locale specified | |
| 63 if (locale == nullptr) { | |
| 64 nsCOMPtr<nsILocaleService> localeService = | |
| 65 do_GetService(NS_LOCALESERVICE_CONTRACTID, &res); | |
| 66 if (NS_SUCCEEDED(res)) { | |
| 67 nsCOMPtr<nsILocale> appLocale; | |
| 68 res = localeService->GetApplicationLocale(getter_AddRefs(appLocale)); | |
| 69 if (NS_SUCCEEDED(res)) { | |
| 70 res = appLocale->GetCategory(aCategory, localeStr); | |
| 71 NS_ASSERTION(NS_SUCCEEDED(res), "failed to get app locale info"); | |
| 72 } | |
| 73 } | |
| 74 } | |
| 75 else { | |
| 76 res = locale->GetCategory(aCategory, localeStr); | |
| 77 NS_ASSERTION(NS_SUCCEEDED(res), "failed to get locale info"); | |
| 78 } | |
| 79 | |
| 80 // Get platform locale and charset name from locale, if available | |
| 81 if (NS_SUCCEEDED(res)) { | |
| 82 // keep the same behavior as 4.x as well as avoiding Linux collation key problem | |
| 83 if (localeStr.LowerCaseEqualsLiteral("en_us")) { // note: locale is in platform format | |
| 84 localeStr.AssignLiteral("C"); | |
| 85 } | |
| 86 | |
| 87 nsPosixLocale::GetPlatformLocale(localeStr, mLocale); | |
| 88 | |
| 89 nsCOMPtr <nsIPlatformCharset> platformCharset = do_GetService(NS_PLATFORMCHARSET_CONTRACTID, &res); | |
| 90 if (NS_SUCCEEDED(res)) { | |
| 91 nsAutoCString mappedCharset; | |
| 92 res = platformCharset->GetDefaultCharsetForLocale(localeStr, mappedCharset); | |
| 93 if (NS_SUCCEEDED(res)) { | |
| 94 mCollation->SetCharset(mappedCharset.get()); | |
| 95 } | |
| 96 } | |
| 97 } | |
| 98 | |
| 99 return NS_OK; | |
| 100 } | |
| 101 | |
| 102 | |
| 103 nsresult nsCollationUnix::CompareString(int32_t strength, | |
| 104 const nsAString& string1, | |
| 105 const nsAString& string2, | |
| 106 int32_t* result) | |
| 107 { | |
| 108 nsresult res = NS_OK; | |
| 109 | |
| 110 nsAutoString stringNormalized1, stringNormalized2; | |
| 111 if (strength != kCollationCaseSensitive) { | |
| 112 res = mCollation->NormalizeString(string1, stringNormalized1); | |
| 113 if (NS_FAILED(res)) { | |
| 114 return res; | |
| 115 } | |
| 116 res = mCollation->NormalizeString(string2, stringNormalized2); | |
| 117 if (NS_FAILED(res)) { | |
| 118 return res; | |
| 119 } | |
| 120 } else { | |
| 121 stringNormalized1 = string1; | |
| 122 stringNormalized2 = string2; | |
| 123 } | |
| 124 | |
| 125 // convert unicode to charset | |
| 126 char *str1, *str2; | |
| 127 | |
| 128 res = mCollation->UnicodeToChar(stringNormalized1, &str1); | |
| 129 if (NS_SUCCEEDED(res) && str1) { | |
| 130 res = mCollation->UnicodeToChar(stringNormalized2, &str2); | |
| 131 if (NS_SUCCEEDED(res) && str2) { | |
| 132 DoSetLocale(); | |
| 133 *result = strcoll(str1, str2); | |
| 134 DoRestoreLocale(); | |
| 135 PR_Free(str2); | |
| 136 } | |
| 137 PR_Free(str1); | |
| 138 } | |
| 139 | |
| 140 return res; | |
| 141 } | |
| 142 | |
| 143 | |
| 144 nsresult nsCollationUnix::AllocateRawSortKey(int32_t strength, | |
| 145 const nsAString& stringIn, | |
| 146 uint8_t** key, uint32_t* outLen) | |
| 147 { | |
| 148 nsresult res = NS_OK; | |
| 149 | |
| 150 nsAutoString stringNormalized; | |
| 151 if (strength != kCollationCaseSensitive) { | |
| 152 res = mCollation->NormalizeString(stringIn, stringNormalized); | |
| 153 if (NS_FAILED(res)) | |
| 154 return res; | |
| 155 } else { | |
| 156 stringNormalized = stringIn; | |
| 157 } | |
| 158 // convert unicode to charset | |
| 159 char *str; | |
| 160 | |
| 161 res = mCollation->UnicodeToChar(stringNormalized, &str); | |
| 162 if (NS_SUCCEEDED(res) && str) { | |
| 163 DoSetLocale(); | |
| 164 // call strxfrm to generate a key | |
| 165 size_t len = strxfrm(nullptr, str, 0) + 1; | |
| 166 void *buffer = PR_Malloc(len); | |
| 167 if (!buffer) { | |
| 168 res = NS_ERROR_OUT_OF_MEMORY; | |
| 169 } else if (strxfrm((char *)buffer, str, len) >= len) { | |
| 170 PR_Free(buffer); | |
| 171 res = NS_ERROR_FAILURE; | |
| 172 } else { | |
| 173 *key = (uint8_t *)buffer; | |
| 174 *outLen = len; | |
| 175 } | |
| 176 DoRestoreLocale(); | |
| 177 PR_Free(str); | |
| 178 } | |
| 179 | |
| 180 return res; | |
| 181 } | |
| 182 | |
| 183 nsresult nsCollationUnix::CompareRawSortKey(const uint8_t* key1, uint32_t len1, | |
| 184 const uint8_t* key2, uint32_t len2, | |
| 185 int32_t* result) | |
| 186 { | |
| 187 *result = PL_strcmp((const char *)key1, (const char *)key2); | |
| 188 return NS_OK; | |
| 189 } |
