fdsdump: common: define component

Author: Lukas Hutak

src/tools/fdsdump/src/common.cpp

@@ -0,0 +1,57 @@
+
+#include <algorithm>
+
+#include "common.hpp"
+
+std::vector<std::string>
+string_split(const std::string &str, const std::string &delimiter)
+{
+    std::vector<std::string> pieces;
+    std::size_t pos = 0;
+    for (;;) {
+        std::size_t next_pos = str.find(delimiter, pos);
+        if (next_pos == std::string::npos) {
+            pieces.emplace_back(str.begin() + pos, str.end());
+            break;
+        }
+        pieces.emplace_back(str.begin() + pos, str.begin() + next_pos);
+        pos = next_pos + 1;
+    }
+    return pieces;
+}
+
+void
+string_ltrim(std::string &str)
+{
+    auto is_space = [](char ch) {
+        return std::isspace(int(ch));
+    };
+
+    auto first_char = std::find_if_not(str.begin(), str.end(), is_space);
+    str.erase(str.begin(), first_char);
+}
+
+void
+string_rtrim(std::string &str)
+{
+    auto is_space = [](char ch) {
+        return std::isspace(int(ch));
+    };
+
+    auto last_char = std::find_if_not(str.rbegin(), str.rend(), is_space);
+    str.erase(last_char.base(), str.end());
+}
+
+void
+string_trim(std::string &str)
+{
+    string_rtrim(str);
+    string_ltrim(str);
+}
+
+std::string
+string_trim_copy(std::string str)
+{
+    string_trim(str);
+    return str;
+}

src/tools/fdsdump/src/common.hpp

@@ -0,0 +1,37 @@
+
+#pragma once
+
+#include <memory>
+#include <string>
+#include <vector>
+
+#include "libfds.h"
+
+using unique_file = std::unique_ptr<fds_file_t, decltype(&fds_file_close)>;
+using unique_iemgr = std::unique_ptr<fds_iemgr_t, decltype(&fds_iemgr_destroy)>;
+using unique_filter = std::unique_ptr<fds_ipfix_filter, decltype(&fds_ipfix_filter_destroy)>;
+using shared_iemgr = std::shared_ptr<fds_iemgr_t>;
+using shared_tsnapshot = std::shared_ptr<fds_tsnapshot_t>;
+
+/**
+ * @brief Split string using a user-defined delimeter.
+ *
+ * If no delimeter is found, the result contains only the original string.
+ * @param str String to be splitted
+ * @param delimiter String delimeter
+ * @return Vector of piecies.
+ */
+std::vector<std::string>
+string_split(const std::string &str, const std::string &delimiter);
+
+void
+string_ltrim(std::string &str);
+
+void
+string_rtrim(std::string &str);
+
+void
+string_trim(std::string &str);
+
+std::string
+string_trim_copy(std::string str);