fable: Add fable/utility/string.hpp utility functions

Author: cassava

fable/CMakeLists.txt

@@ -29,6 +29,7 @@ add_library(fable
     src/fable/schema/path.cpp
     src/fable/environment.cpp
     src/fable/utility.cpp
+    src/fable/utility/string.cpp
 
     # For IDE integration
     ${fable_PUBLIC_HEADERS}

fable/include/fable/utility/string.hpp

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2023 Robert Bosch GmbH
+ *
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+/**
+ * \file fable/utility/string.hpp
+ * \see  fable/utility/string.cpp
+ */
+
+#include <string>  // for string
+#include <vector>  // for vector<>
+
+namespace fable {
+
+std::string join_vector(const std::vector<std::string>& v, const std::string& sep);
+
+std::vector<std::string> split_string(std::string&& s, const std::string& sep);
+
+}  // namespace fable

fable/src/fable/utility/string.cpp

@@ -0,0 +1,54 @@
+/*
+ * Copyright 2023 Robert Bosch GmbH
+ *
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+/**
+ * \file fable/utility/string.cpp
+ * \see  fable/utility/string.hpp
+ */
+
+#include <string>  // for string
+#include <vector>  // for vector<>
+
+namespace fable {
+
+std::string join_vector(const std::vector<std::string>& v, const std::string& sep) {
+  std::string result;
+  size_t n = v.size();
+  for (size_t i = 1; i <= n; i++) {
+    result += v[i - 1];
+    if (i < n) {
+      result += sep;
+    }
+  }
+  return result;
+}
+
+std::vector<std::string> split_string(std::string&& s, const std::string& sep) {
+  std::vector<std::string> results;
+
+  while (s.size() > 0) {
+    size_t pos = s.find(sep);
+    results.emplace_back(s.substr(0, pos));
+    s.erase(0, pos);
+    s.erase(0, sep.size());
+  }
+
+  return results;
+}
+
+}  // namespace fable
+