summaryrefslogtreecommitdiffstats
path: root/tools/aapt2/Locale.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'tools/aapt2/Locale.cpp')
-rw-r--r--tools/aapt2/Locale.cpp274
1 files changed, 274 insertions, 0 deletions
diff --git a/tools/aapt2/Locale.cpp b/tools/aapt2/Locale.cpp
new file mode 100644
index 0000000..eed0ea7
--- /dev/null
+++ b/tools/aapt2/Locale.cpp
@@ -0,0 +1,274 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "Locale.h"
+#include "Util.h"
+
+#include <algorithm>
+#include <ctype.h>
+#include <string>
+#include <vector>
+
+namespace aapt {
+
+using android::ResTable_config;
+
+void LocaleValue::setLanguage(const char* languageChars) {
+ size_t i = 0;
+ while ((*languageChars) != '\0') {
+ language[i++] = ::tolower(*languageChars);
+ languageChars++;
+ }
+}
+
+void LocaleValue::setRegion(const char* regionChars) {
+ size_t i = 0;
+ while ((*regionChars) != '\0') {
+ region[i++] = ::toupper(*regionChars);
+ regionChars++;
+ }
+}
+
+void LocaleValue::setScript(const char* scriptChars) {
+ size_t i = 0;
+ while ((*scriptChars) != '\0') {
+ if (i == 0) {
+ script[i++] = ::toupper(*scriptChars);
+ } else {
+ script[i++] = ::tolower(*scriptChars);
+ }
+ scriptChars++;
+ }
+}
+
+void LocaleValue::setVariant(const char* variantChars) {
+ size_t i = 0;
+ while ((*variantChars) != '\0') {
+ variant[i++] = *variantChars;
+ variantChars++;
+ }
+}
+
+static inline bool isAlpha(const std::string& str) {
+ return std::all_of(std::begin(str), std::end(str), ::isalpha);
+}
+
+static inline bool isNumber(const std::string& str) {
+ return std::all_of(std::begin(str), std::end(str), ::isdigit);
+}
+
+bool LocaleValue::initFromFilterString(const std::string& str) {
+ // A locale (as specified in the filter) is an underscore separated name such
+ // as "en_US", "en_Latn_US", or "en_US_POSIX".
+ std::vector<std::string> parts = util::splitAndLowercase(str, '_');
+
+ const int numTags = parts.size();
+ bool valid = false;
+ if (numTags >= 1) {
+ const std::string& lang = parts[0];
+ if (isAlpha(lang) && (lang.length() == 2 || lang.length() == 3)) {
+ setLanguage(lang.c_str());
+ valid = true;
+ }
+ }
+
+ if (!valid || numTags == 1) {
+ return valid;
+ }
+
+ // At this point, valid == true && numTags > 1.
+ const std::string& part2 = parts[1];
+ if ((part2.length() == 2 && isAlpha(part2)) ||
+ (part2.length() == 3 && isNumber(part2))) {
+ setRegion(part2.c_str());
+ } else if (part2.length() == 4 && isAlpha(part2)) {
+ setScript(part2.c_str());
+ } else if (part2.length() >= 5 && part2.length() <= 8) {
+ setVariant(part2.c_str());
+ } else {
+ valid = false;
+ }
+
+ if (!valid || numTags == 2) {
+ return valid;
+ }
+
+ // At this point, valid == true && numTags > 1.
+ const std::string& part3 = parts[2];
+ if (((part3.length() == 2 && isAlpha(part3)) ||
+ (part3.length() == 3 && isNumber(part3))) && script[0]) {
+ setRegion(part3.c_str());
+ } else if (part3.length() >= 5 && part3.length() <= 8) {
+ setVariant(part3.c_str());
+ } else {
+ valid = false;
+ }
+
+ if (!valid || numTags == 3) {
+ return valid;
+ }
+
+ const std::string& part4 = parts[3];
+ if (part4.length() >= 5 && part4.length() <= 8) {
+ setVariant(part4.c_str());
+ } else {
+ valid = false;
+ }
+
+ if (!valid || numTags > 4) {
+ return false;
+ }
+
+ return true;
+}
+
+ssize_t LocaleValue::initFromParts(std::vector<std::string>::iterator iter,
+ std::vector<std::string>::iterator end) {
+ const std::vector<std::string>::iterator startIter = iter;
+
+ std::string& part = *iter;
+ if (part[0] == 'b' && part[1] == '+') {
+ // This is a "modified" BCP-47 language tag. Same semantics as BCP-47 tags,
+ // except that the separator is "+" and not "-".
+ std::vector<std::string> subtags = util::splitAndLowercase(part, '+');
+ subtags.erase(subtags.begin());
+ if (subtags.size() == 1) {
+ setLanguage(subtags[0].c_str());
+ } else if (subtags.size() == 2) {
+ setLanguage(subtags[0].c_str());
+
+ // The second tag can either be a region, a variant or a script.
+ switch (subtags[1].size()) {
+ case 2:
+ case 3:
+ setRegion(subtags[1].c_str());
+ break;
+ case 4:
+ setScript(subtags[1].c_str());
+ break;
+ case 5:
+ case 6:
+ case 7:
+ case 8:
+ setVariant(subtags[1].c_str());
+ break;
+ default:
+ return -1;
+ }
+ } else if (subtags.size() == 3) {
+ // The language is always the first subtag.
+ setLanguage(subtags[0].c_str());
+
+ // The second subtag can either be a script or a region code.
+ // If its size is 4, it's a script code, else it's a region code.
+ if (subtags[1].size() == 4) {
+ setScript(subtags[1].c_str());
+ } else if (subtags[1].size() == 2 || subtags[1].size() == 3) {
+ setRegion(subtags[1].c_str());
+ } else {
+ return -1;
+ }
+
+ // The third tag can either be a region code (if the second tag was
+ // a script), else a variant code.
+ if (subtags[2].size() > 4) {
+ setVariant(subtags[2].c_str());
+ } else {
+ setRegion(subtags[2].c_str());
+ }
+ } else if (subtags.size() == 4) {
+ setLanguage(subtags[0].c_str());
+ setScript(subtags[1].c_str());
+ setRegion(subtags[2].c_str());
+ setVariant(subtags[3].c_str());
+ } else {
+ return -1;
+ }
+
+ ++iter;
+
+ } else {
+ if ((part.length() == 2 || part.length() == 3)
+ && isAlpha(part) && part != "car") {
+ setLanguage(part.c_str());
+ ++iter;
+
+ if (iter != end) {
+ const std::string& regionPart = *iter;
+ if (regionPart.c_str()[0] == 'r' && regionPart.length() == 3) {
+ setRegion(regionPart.c_str() + 1);
+ ++iter;
+ }
+ }
+ }
+ }
+
+ return static_cast<ssize_t>(iter - startIter);
+}
+
+
+std::string LocaleValue::toDirName() const {
+ std::string dirName;
+ if (language[0]) {
+ dirName += language;
+ } else {
+ return dirName;
+ }
+
+ if (script[0]) {
+ dirName += "-s";
+ dirName += script;
+ }
+
+ if (region[0]) {
+ dirName += "-r";
+ dirName += region;
+ }
+
+ if (variant[0]) {
+ dirName += "-v";
+ dirName += variant;
+ }
+
+ return dirName;
+}
+
+void LocaleValue::initFromResTable(const ResTable_config& config) {
+ config.unpackLanguage(language);
+ config.unpackRegion(region);
+ if (config.localeScript[0]) {
+ memcpy(script, config.localeScript, sizeof(config.localeScript));
+ }
+
+ if (config.localeVariant[0]) {
+ memcpy(variant, config.localeVariant, sizeof(config.localeVariant));
+ }
+}
+
+void LocaleValue::writeTo(ResTable_config* out) const {
+ out->packLanguage(language);
+ out->packRegion(region);
+
+ if (script[0]) {
+ memcpy(out->localeScript, script, sizeof(out->localeScript));
+ }
+
+ if (variant[0]) {
+ memcpy(out->localeVariant, variant, sizeof(out->localeVariant));
+ }
+}
+
+} // namespace aapt
generated by cgit v1.1 at 2024-06-07 21:42:11 +0000