diff --git a/library/include/binary/algorithm/experimental.hpp b/library/include/binary/algorithm/experimental.hpp
index bcbc1fb..c68f765 100644
--- a/library/include/binary/algorithm/experimental.hpp
+++ b/library/include/binary/algorithm/experimental.hpp
@@ -74,7 +74,7 @@ namespace binary::algorithm::tree::v1_shared_ptr {
     void insert_node(pointer_type node);
 
     template <typename... Args>
-    requires std::constructible_from<node_type, Args...>
+      requires std::constructible_from<node_type, Args...>
     void insert_node(Args &&...args) {
       insert_node(std::make_shared<node_type>(std::forward<Args>(args)...));
     }
diff --git a/library/include/binary/algorithm/interval_tree.hpp b/library/include/binary/algorithm/interval_tree.hpp
index 2f58130..731d367 100644
--- a/library/include/binary/algorithm/interval_tree.hpp
+++ b/library/include/binary/algorithm/interval_tree.hpp
@@ -29,21 +29,22 @@ namespace binary::algorithm::tree {
   /** Interval Node and Interval Tree */
 
   template <typename Interval>
-  concept IntervalConcept = requires(Interval const &interval) {
-    requires std::semiregular<Interval>;
-    requires std::movable<Interval>;
-    requires std::same_as<decltype(interval.low), decltype(interval.high)>;
-    interval.low <= interval.high;
-    typename Interval::key_type;
-  };
+  concept IntervalConcept
+      = requires(Interval const &interval) {
+          requires std::semiregular<Interval>;
+          requires std::movable<Interval>;
+          requires std::same_as<decltype(interval.low), decltype(interval.high)>;
+          interval.low <= interval.high;
+          typename Interval::key_type;
+        };
 
   template <typename Node>
   concept IntervalNodeConcept = requires(Node &node) {
-    requires NodeConcept<Node>;
-    typename Node::interval_type;
-    node.max;
-    node.interval;
-  };
+                                  requires NodeConcept<Node>;
+                                  typename Node::interval_type;
+                                  node.max;
+                                  node.interval;
+                                };
 
   /** Interval Tree node
    *
@@ -64,7 +65,7 @@ namespace binary::algorithm::tree {
     constexpr IntervalNode &operator=(IntervalNode &&other) noexcept = default;
 
     template <typename... Arg>
-    requires std::constructible_from<Interval, Arg...>
+      requires std::constructible_from<Interval, Arg...>
     explicit constexpr IntervalNode(Arg &&...args)
         : interval{std::forward<Arg>(args)...}, max{interval.high}, key{interval.low} {}
 
@@ -153,7 +154,7 @@ namespace binary::algorithm::tree {
         -> std::optional<interval_type>;
 
     template <typename... Args>
-    requires binary::concepts::ArgsConstructible<interval_type, Args...>
+      requires binary::concepts::ArgsConstructible<interval_type, Args...>
     [[nodiscard]] auto find_overlap(Args &&...args) const -> std::optional<interval_type> {
       return find_overlap(interval_type{std::forward<Args>(args)...});
     }
@@ -162,7 +163,7 @@ namespace binary::algorithm::tree {
         -> std::vector<interval_type>;
 
     template <typename... Args>
-    requires binary::concepts::ArgsConstructible<interval_type, Args...>
+      requires binary::concepts::ArgsConstructible<interval_type, Args...>
     [[nodiscard]] auto find_overlaps(Args &&...args) const -> std::vector<interval_type> {
       return find_overlaps(interval_type{std::forward<Args>(args)...});
     }
diff --git a/library/include/binary/algorithm/rb_tree.hpp b/library/include/binary/algorithm/rb_tree.hpp
index 12b0c93..c39e024 100644
--- a/library/include/binary/algorithm/rb_tree.hpp
+++ b/library/include/binary/algorithm/rb_tree.hpp
@@ -22,19 +22,19 @@ namespace binary::algorithm::tree {
 
   template <typename Node>
   concept NodeConcept = requires(Node &node) {
-    requires std::movable<Node> && std::default_initializable<Node>;
-    typename Node::key_type;
-    typename Node::pointer;
-    typename Node::reference_pointer;
-    typename Node::raw_pointer;
-    node.key;
-    node.left;
-    node.right;
-    node.parent;
-    node.color_;
-    node.is_black();
-    node.is_red();
-  };
+                          requires std::movable<Node> && std::default_initializable<Node>;
+                          typename Node::key_type;
+                          typename Node::pointer;
+                          typename Node::reference_pointer;
+                          typename Node::raw_pointer;
+                          node.key;
+                          node.left;
+                          node.right;
+                          node.parent;
+                          node.color_;
+                          node.is_black();
+                          node.is_red();
+                        };
 
   enum class Color { Red, Black };
 
@@ -109,7 +109,7 @@ namespace binary::algorithm::tree {
     virtual ~RbTree() = default;
 
     template <std::ranges::input_range R>
-    requires std::constructible_from<NodeType, std::ranges::range_value_t<R>>
+      requires std::constructible_from<NodeType, std::ranges::range_value_t<R>>
     void insert_node(R &&range) {
       for (auto &&item : range) {
         insert_node(std::forward<decltype(item)>(item));
@@ -143,7 +143,7 @@ namespace binary::algorithm::tree {
     [[maybe_unused]] void insert_node(pointer node);
 
     template <typename... Args>
-    requires std::constructible_from<NodeType, Args...>
+      requires std::constructible_from<NodeType, Args...>
     void insert_node(Args &&...args) {
       insert_node(std::make_unique<NodeType>(std::forward<Args>(args)...));
     }
diff --git a/library/include/binary/concepts.hpp b/library/include/binary/concepts.hpp
index c432878..b896b2f 100644
--- a/library/include/binary/concepts.hpp
+++ b/library/include/binary/concepts.hpp
@@ -16,7 +16,7 @@ namespace binary::concepts {
 
   template <typename T, typename... Args>
   concept ArgsConstructible
-      = std::constructible_from<T, Args...> &&(!IsAnyOf<T, std::remove_cvref_t<Args>...>);
+      = std::constructible_from<T, Args...> && (!IsAnyOf<T, std::remove_cvref_t<Args>...>);
 
 }  // namespace binary::concepts
 
diff --git a/library/include/binary/parser/vcf.hpp b/library/include/binary/parser/vcf.hpp
index 385e99d..45196a4 100644
--- a/library/include/binary/parser/vcf.hpp
+++ b/library/include/binary/parser/vcf.hpp
@@ -73,7 +73,7 @@ namespace binary::parser::vcf {
     constexpr int BINARY_BCF_HT_LONG = (BINARY_BCF_HT_INT | 0x100);
 
     template <typename Datatype>
-    requires binary::concepts::IsAnyOf<Datatype, int, float, char, pos_t, int64_t>
+      requires binary::concepts::IsAnyOf<Datatype, int, float, char, pos_t, int64_t>
     struct InfoGetter {
       Datatype* data{nullptr};
       int32_t count{};
@@ -162,20 +162,20 @@ namespace binary::parser::vcf {
 
     template <typename T>
     concept InfoFieldConcept = requires(T t) {
-      requires std::semiregular<T>;
-      requires std::movable<T>;
-      requires std::derived_from<T, details::BaseInfoField>;
-      t.update(std::shared_ptr<details::DataImpl>{});
-      std::cout << t;
-    };
+                                 requires std::semiregular<T>;
+                                 requires std::movable<T>;
+                                 requires std::derived_from<T, details::BaseInfoField>;
+                                 t.update(std::shared_ptr<details::DataImpl>{});
+                                 std::cout << t;
+                               };
 
     template <typename... T> struct InfoFieldFactory : public details::BaseInfoField {
       std::tuple<decltype(InfoGetter<T>::result_type())...> data_tuple{};
       std::array<std::string, sizeof...(T)> keys_array{};
 
       template <typename... U>
-      requires(std::convertible_to<U, std::string>&&...) explicit InfoFieldFactory(U... args)
-          : keys_array{args...} {
+        requires(std::convertible_to<U, std::string> && ...)
+      explicit InfoFieldFactory(U... args) : keys_array{args...} {
         static_assert(sizeof...(T) == sizeof...(U), "Number of keys and values do not match");
       }
       InfoFieldFactory(InfoFieldFactory const&) = default;
@@ -306,14 +306,14 @@ namespace binary::parser::vcf {
 
   template <typename T>
   concept RecordConcept = requires(T record) {
-    requires std::semiregular<T>;
-    requires std::movable<T>;
-    record.chrom;
-    record.pos;
-    record.rlen;
-    record.info;
-    std::cout << record;
-  };
+                            requires std::semiregular<T>;
+                            requires std::movable<T>;
+                            record.chrom;
+                            record.pos;
+                            record.rlen;
+                            record.info;
+                            std::cout << record;
+                          };
 
   template <RecordConcept RecordType> class VcfRanges {
   public:
diff --git a/library/include/binary/utils.hpp b/library/include/binary/utils.hpp
index a73f284..61c162a 100644
--- a/library/include/binary/utils.hpp
+++ b/library/include/binary/utils.hpp
@@ -15,7 +15,7 @@ namespace binary::utils {
 
   // TODO: use binary search if range is sorted
   template <std::ranges::input_range Container, typename Value>
-  requires std::equality_comparable_with<std::ranges::range_value_t<Container>, Value>
+    requires std::equality_comparable_with<std::ranges::range_value_t<Container>, Value>
   auto index(Container const& container, Value&& value) -> std::size_t {
     auto it = std::ranges::find(container, std::forward<Value>(value));
     if (it == std::ranges::end(container)) {
@@ -39,7 +39,7 @@ namespace binary::utils {
   }
 
   template <std::ranges::input_range StringRange>
-  requires std::convertible_to<std::ranges::range_value_t<StringRange>, std::string>
+    requires std::convertible_to<std::ranges::range_value_t<StringRange>, std::string>
   void merge_files(StringRange&& files, std::string_view output_file, std::string_view header = "",
                    bool is_deleted = true, bool is_skipped_header = true) {
     auto output = std::ofstream(output_file.data());
@@ -72,6 +72,19 @@ namespace binary::utils {
   [[maybe_unused]] inline void set_trace() { spdlog::set_level(spdlog::level::trace); }
   [[maybe_unused]] inline void set_info() { spdlog::set_level(spdlog::level::info); }
 
+  // trim from left
+  inline constexpr auto trim_front = std::ranges::views::drop_while(::isspace);
+
+  inline constexpr auto trim_back = std::ranges::views::reverse
+                                    | std::ranges::views::drop_while(::isspace)
+                                    | std::ranges::views::reverse;
+
+  inline constexpr auto trim = trim_front | trim_back;
+
+  auto split_str(std::string_view str, char delim) -> std::vector<std::string>;
+
+  std::string trim_str(std::string_view str);
+
 }  // namespace binary::utils
 
 #endif  // BINARY_LIBRARY_INCLUDE_BINARY_UTLS_HPP_
diff --git a/library/source/utils.cpp b/library/source/utils.cpp
index 5c38cf3..5e9647a 100644
--- a/library/source/utils.cpp
+++ b/library/source/utils.cpp
@@ -20,4 +20,19 @@ namespace binary::utils {
     return std::filesystem::exists(file_path);
   }
 
+  std::string trim_str(std::string_view str) {
+    auto temp = str | trim;
+    return {temp.begin(), temp.end()};
+  }
+
+  auto split_str(std::string_view str, char delim) -> std::vector<std::string> {
+    auto temp_view = str | std::ranges::views::split(delim);
+    auto result = std::vector<std::string>{};
+
+    for (auto const& sub_str : temp_view) {
+      result.emplace_back(sub_str.begin(), sub_str.end());
+    }
+    return result;
+  }
+
 }  // namespace binary::utils
\ No newline at end of file
diff --git a/standalone/sv2nl/include/writer.hpp b/standalone/sv2nl/include/writer.hpp
index 2c8e746..ffe9716 100644
--- a/standalone/sv2nl/include/writer.hpp
+++ b/standalone/sv2nl/include/writer.hpp
@@ -25,7 +25,7 @@ namespace sv2nl {
     }
 
     template <std::ranges::input_range Sv2nlRecordRange>
-    requires std::same_as<std::ranges::range_value_t<Sv2nlRecordRange>, Sv2nlVcfRecord>
+      requires std::same_as<std::ranges::range_value_t<Sv2nlRecordRange>, Sv2nlVcfRecord>
     void write(Sv2nlRecordRange&& records) {
       if (records.size() < 2) return;
       auto key_line = format_keys(records[0]);
@@ -38,7 +38,7 @@ namespace sv2nl {
     }
 
     template <std::ranges::input_range Sv2nlRecordRange>
-    requires std::same_as<std::ranges::range_value_t<Sv2nlRecordRange>, Sv2nlVcfRecord>
+      requires std::same_as<std::ranges::range_value_t<Sv2nlRecordRange>, Sv2nlVcfRecord>
     void write_trans(Sv2nlRecordRange&& records) {
       if (records.size() < 2) return;
       auto key_line = format_keys(records[0]);
diff --git a/test/source/test_utils/test_utils.cpp b/test/source/test_utils/test_utils.cpp
index 431b423..d583db9 100644
--- a/test/source/test_utils/test_utils.cpp
+++ b/test/source/test_utils/test_utils.cpp
@@ -87,4 +87,28 @@ TEST_SUITE("test binary utils") {
     std::tuple t1{1, "test", 3.0};
     CHECK_NOTHROW(binary::utils::print_tuple(t1));
   }
+
+  TEST_CASE("test trim view") {
+    using namespace binary::utils;
+
+    std::string_view str = "  test  ";
+    auto temp = trim_str(str);
+    CHECK_EQ(temp, "test");
+  }
+
+  TEST_CASE("test split string") {
+    using namespace binary::utils;
+
+    std::string_view str = "test1,test2,test3";
+    auto temp = split_str(str, ',');
+    CHECK_EQ(temp.size(), 3);
+    CHECK_EQ(temp[0], "test1");
+    CHECK_EQ(temp[1], "test2");
+    CHECK_EQ(temp[2], "test3");
+
+    std::string_view str2 = " test1  ,  test2  ,  test3  ";
+    auto temp2 = split_str(str2, ',');
+    CHECK_EQ(temp2.size(), 3);
+    CHECK_EQ(temp2[0], " test1  ");
+  }
 }
\ No newline at end of file