aboutsummaryrefslogtreecommitdiff
path: root/include/openvic-dataloader/csv/LineObject.hpp
diff options
context:
space:
mode:
author George L. Albany <Megacake1234@gmail.com>2023-09-02 14:31:44 +0200
committer GitHub <noreply@github.com>2023-09-02 14:31:44 +0200
commitf990117e56060811ddd2a850ec712485aea79649 (patch)
tree2bb062c320fa2227b18956617b94d0e8800420d8 /include/openvic-dataloader/csv/LineObject.hpp
parente941573f47fb867ff75c8a2cf78302b754ffbeee (diff)
parent7440a5d1433eec4bf87e3723022db187e7f61b1a (diff)
Merge pull request #7 from OpenVicProject/dataloading-event-and-functions
Diffstat (limited to 'include/openvic-dataloader/csv/LineObject.hpp')
-rw-r--r--include/openvic-dataloader/csv/LineObject.hpp84
1 files changed, 84 insertions, 0 deletions
diff --git a/include/openvic-dataloader/csv/LineObject.hpp b/include/openvic-dataloader/csv/LineObject.hpp
new file mode 100644
index 0000000..0494ffb
--- /dev/null
+++ b/include/openvic-dataloader/csv/LineObject.hpp
@@ -0,0 +1,84 @@
+#pragma once
+
+#include <cstddef>
+#include <cstdint>
+#include <functional>
+#include <initializer_list>
+#include <optional>
+#include <string>
+#include <string_view>
+#include <tuple>
+#include <vector>
+
+namespace ovdl::csv {
+ /// LineObject should be able to recognize the differences between:
+ /// Input -> Indexes == ""
+ /// ;;a;b;c;; -> 0,1,5,6+ == ""
+ /// a;b;c -> 3+ == ""
+ /// a;;b;c;; -> 1,4,5+ == ""
+ /// a;b;;c; -> 2,4+ == ""
+ /// a;b;c;; -> 3,4+ == ""
+ /// a;b;c; -> 3+ == ""
+ /// ;a;b;c -> 0,4+ == ""
+ ///
+ /// If this is incorrect, please report an issue.
+ class LineObject final : public std::vector<std::tuple<std::uint32_t, std::string>> {
+ public:
+ // Stored position of value
+ using position_type = std::uint32_t;
+ // Value
+ using inner_value_type = std::string;
+ using container_type = std::vector<std::tuple<position_type, inner_value_type>>;
+
+ constexpr LineObject() = default;
+ constexpr LineObject(LineObject&) = default;
+ constexpr LineObject(LineObject&&) = default;
+ constexpr LineObject(const LineObject&) = default;
+
+ constexpr LineObject& operator=(const LineObject& other) = default;
+ constexpr LineObject& operator=(LineObject&& other) = default;
+
+ constexpr ~LineObject() = default;
+
+ constexpr LineObject(std::initializer_list<value_type> pos_and_val) : container_type(pos_and_val) {
+ }
+
+ constexpr LineObject(position_type prefix_end, std::initializer_list<value_type> pos_and_val, position_type suffix_end = 0)
+ : container_type(pos_and_val),
+ _prefix_end(prefix_end),
+ _suffix_end(suffix_end) {
+ }
+
+ /// Special Functionality
+ /// Retrieves value, produces "" for empty values
+ constexpr std::string_view get_value_for(std::size_t position) const {
+ if (position <= _prefix_end || position >= _suffix_end) return "";
+ for (const auto& [pos, val] : *this) {
+ if (pos == position) return val;
+ }
+ return "";
+ }
+ /// Tries to retrieve reference, produces nullopt for empty values
+ constexpr std::optional<const std::reference_wrapper<const std::string>> try_get_string_at(std::size_t position) const {
+ if (position <= _prefix_end || position > _suffix_end) return std::nullopt;
+ for (const auto& [pos, val] : *this) {
+ if (pos == position) return std::cref(val);
+ }
+ return std::nullopt;
+ }
+
+ constexpr position_type prefix_end() const { return _prefix_end; }
+ constexpr void set_prefix_end(position_type value) { _prefix_end = value; }
+
+ constexpr position_type suffix_end() const { return _suffix_end; }
+ constexpr void set_suffix_end(position_type value) { _suffix_end = value; }
+
+ constexpr std::size_t value_count() const { return _suffix_end; }
+
+ private:
+ // Should be position of first valid value on line
+ position_type _prefix_end;
+ // Should be position after last value or position after last seperator
+ position_type _suffix_end;
+ };
+} \ No newline at end of file