From 541ef075f2021471d145d9417ba2ac62d7098adc Mon Sep 17 00:00:00 2001
From: Yi Zhang <zhangyiss@icloud.com>
Date: Thu, 8 May 2025 14:20:30 +0800
Subject: [PATCH] tmp

---
 example/CMakeLists.txt                    |  2 +-
 example/{text_io_ex.cpp => dsv_io_ex.cpp} |  2 ++
 lib/io/dsv_io.cpp                         | 12 ++++++++++++
 lib/io/dsv_io.h                           | 18 ++++++++++++++++++
 4 files changed, 33 insertions(+), 1 deletion(-)
 rename example/{text_io_ex.cpp => dsv_io_ex.cpp} (98%)

diff --git a/example/CMakeLists.txt b/example/CMakeLists.txt
index 33447b2..98e6487 100644
--- a/example/CMakeLists.txt
+++ b/example/CMakeLists.txt
@@ -26,7 +26,7 @@ add_example(kde_ex OFF)
 add_example(meshio_ex OFF)
 add_example(autodiff_ex OFF)
 add_example(multinary_ex OFF)
-add_example(text_io_ex OFF)
+add_example(dsv_io_ex OFF)
 add_example(getoption_ex OFF)
 add_example(process_ex OFF)
 add_example(array_ex OFF)
diff --git a/example/text_io_ex.cpp b/example/dsv_io_ex.cpp
similarity index 98%
rename from example/text_io_ex.cpp
rename to example/dsv_io_ex.cpp
index f6e90df..dc01039 100644
--- a/example/text_io_ex.cpp
+++ b/example/dsv_io_ex.cpp
@@ -42,6 +42,8 @@ int main(int argc, char const *argv[]) try
     //tc.filter("America", "BLZ", RowHead);
     //tc.save_text("out");
 
+    if (tc.has_column("Continent_s")) std::cout << "Find Column\n";
+
     dsv_io tc2 = tc.export_table();
     //tc2.head_records(tc.head_records());
     tc2.delimeter('|');
diff --git a/lib/io/dsv_io.cpp b/lib/io/dsv_io.cpp
index e3357cb..3e581dd 100644
--- a/lib/io/dsv_io.cpp
+++ b/lib/io/dsv_io.cpp
@@ -643,6 +643,12 @@ void gctl::dsv_io::row_output(std::string name, switch_type_e s)
     return;
 }
 
+bool gctl::dsv_io::has_column(std::string name)
+{
+    if (name_index(name) != -1) return true;
+    return false;
+}
+
 int gctl::dsv_io::add_column(std::string name, int idx)
 {
     if (idx <= 0) throw std::runtime_error("[gctl::dsv_io] Invalid column index.");
@@ -678,6 +684,12 @@ int gctl::dsv_io::add_column(std::string name, std::string id_name)
     return add_column(name, name_index(id_name));
 }
 
+bool gctl::dsv_io::has_row(std::string name)
+{
+    if (name_index(name, true) != -1) return true;
+    return false;
+}
+
 int gctl::dsv_io::add_row(std::string name, int idx)
 {
     if (idx <= 0) throw std::runtime_error("[gctl::dsv_io] Invalid row index.");
diff --git a/lib/io/dsv_io.h b/lib/io/dsv_io.h
index 789916c..c1ba644 100644
--- a/lib/io/dsv_io.h
+++ b/lib/io/dsv_io.h
@@ -491,6 +491,15 @@ namespace gctl
 		 */
 		void row_output(std::string name, switch_type_e s = Disable);
 
+		/**
+		 * @brief 在表格中查找是否存在相应名称的列
+		 * 
+		 * @param name 列名称
+		 * @return true 存在该列
+		 * @return false 不存在该列
+		 */
+		bool has_column(std::string name);
+
 		/**
 		 * @brief 在索引为idx的位置插入一个空白列，剩余列后移一位。如果idx大于列数则在表尾添加一列。
 		 * 
@@ -511,6 +520,15 @@ namespace gctl
 		 */
 		int add_column(std::string name, std::string id_name);
 
+		/**
+		 * @brief 在表格中查找是否存在相应名称的行
+		 * 
+		 * @param name 行名称
+		 * @return true 存在该行
+		 * @return false 不存在该行
+		 */
+		bool has_row(std::string name);
+
 		/**
 		 * @brief 在索引为idx的位置插入一个空白行，剩余行后移一位。如果idx大于等于行数则在表尾添加一行。
 		 *