1 files changed, 98 insertions, 0 deletions
diff --git a/native/dicttoolkit/src/utils/arguments_parser.cpp b/native/dicttoolkit/src/utils/arguments_parser.cpp
new file mode 100644
index 000000000..52cc7b21d
--- /dev/null
+++ b/native/dicttoolkit/src/utils/arguments_parser.cpp
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2014 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 "utils/arguments_parser.h"
+
+#include <unordered_set>
+
+namespace latinime {
+namespace dicttoolkit {
+
+const int ArgumentSpec::UNLIMITED_COUNT = -1;
+
+bool ArgumentsParser::validateSpecs() const {
+    std::unordered_set<std::string> argumentNameSet;
+    for (size_t i = 0; i < mArgumentSpecs.size() ; ++i) {
+        if (mArgumentSpecs[i].getMinCount() == 0 && mArgumentSpecs[i].getMaxCount() == 0) {
+            AKLOGE("minCount = maxCount = 0 for %s.", mArgumentSpecs[i].getName().c_str());
+            return false;
+        }
+        if (mArgumentSpecs[i].getMinCount() != mArgumentSpecs[i].getMaxCount()
+                && i != mArgumentSpecs.size() - 1) {
+            AKLOGE("Variable length argument must be at the end.",
+                    mArgumentSpecs[i].getName().c_str()v  );
+            return false;
+        }
+        if (argumentNameSet.count(mArgumentSpecs[i].getName()) > 0) {
+            AKLOGE("Multiple arguments have the same name \"%s\".",
+                    mArgumentSpecs[i].getName().c_str());
+            return false;
+        }
+        argumentNameSet.insert(mArgumentSpecs[i].getName());
+    }
+    return true;
+}
+
+void ArgumentsParser::printUsage(const std::string &commandName,
+        const std::string &description) const {
+    printf("Usage: %s", commandName.c_str());
+    for (const auto &option : mOptionSpecs) {
+        const std::string &optionName = option.first;
+        const OptionSpec &spec = option.second;
+        printf(" [-%s", optionName.c_str());
+        if (spec.takeValue()) {
+            printf(" <%s>", spec.getValueName().c_str());
+        }
+        printf("]");
+    }
+    for (const auto &argSpec : mArgumentSpecs) {
+        if (argSpec.getMinCount() == 0 && argSpec.getMaxCount() == 1) {
+            printf(" [<%s>]", argSpec.getName().c_str());
+        } else if (argSpec.getMinCount() == 1 && argSpec.getMaxCount() == 1) {
+            printf(" <%s>", argSpec.getName().c_str());
+        } else if (argSpec.getMinCount() == 0) {
+            printf(" [<%s>...]", argSpec.getName().c_str());
+        } else if (argSpec.getMinCount() == 1) {
+            printf(" <%s>...", argSpec.getName().c_str());
+        }
+    }
+    printf("\n%s\n\n", description.c_str());
+    for (const auto &option : mOptionSpecs) {
+        const std::string &optionName = option.first;
+        const OptionSpec &spec = option.second;
+        printf(" -%s", optionName.c_str());
+        if (spec.takeValue()) {
+            printf(" <%s>", spec.getValueName().c_str());
+        }
+        printf("\t\t\t%s", spec.getDescription().c_str());
+        if (spec.takeValue() && !spec.getDefaultValue().empty()) {
+            printf("\tdefault: %s", spec.getDefaultValue().c_str());
+        }
+        printf("\n");
+    }
+    for (const auto &argSpec : mArgumentSpecs) {
+        printf(" <%s>\t\t\t%s\n", argSpec.getName().c_str(), argSpec.getDescription().c_str());
+    }
+    printf("\n\n");
+}
+
+const ArgumentsAndOptions ArgumentsParser::parseArguments(const int argc, char **argv) const {
+    // TODO: Implement
+    return ArgumentsAndOptions();
+}
+
+} // namespace dicttoolkit
+} // namespace latinime