feat: add new package wcwidth

- add wcwidth in carton.
- order clang-format do not format some generated content.

testbench/CMakeLists.txt

@@ -28,6 +28,7 @@ PRIVATE
     yycc/windows/winfct.cpp
     
     yycc/carton/pycodec.cpp
+    yycc/carton/wcwidth.cpp
 )
 target_sources(YYCCTestbench
 PRIVATE

testbench/yycc/carton/wcwidth.cpp

@@ -0,0 +1,52 @@
+#include <gtest/gtest.h>
+#include <yycc.hpp>
+#include <yycc/carton/wcwidth.hpp>
+
+#define WCWDITH ::yycc::carton::wcwidth
+
+namespace yycctest::carton::wcwidth {
+
+#define TEST_SUCCESS(strl, len) \
+    { \
+        auto rv = WCWDITH::wcswidth(strl); \
+        ASSERT_TRUE(rv.has_value()); \
+        EXPECT_EQ(rv.value(), len); \
+    }
+
+#define TEST_FAIL(strl) \
+    { \
+        auto rv = WCWDITH::wcswidth(strl); \
+        EXPECT_FALSE(rv.has_value()); \
+    }
+
+    TEST(CartonWcwdith, BadAnsi) {
+        TEST_FAIL(u8"\033?");
+    }
+
+    TEST(CartonWcwdith, BadCsi) {
+        TEST_FAIL(u8"\033[\t");
+    }
+
+    TEST(CartonWcwdith, English) {
+        TEST_SUCCESS(u8"abc", 3);
+    }
+
+    TEST(CartonWcwdith, Chinese) {
+        TEST_SUCCESS(u8"中文", 4);
+        TEST_SUCCESS(u8"中a文", 5);
+    }
+
+    TEST(CartonWcwdith, Japanese) {
+        TEST_SUCCESS(u8"ありがとう", 10);
+        TEST_SUCCESS(u8"アリガトウ", 10);
+        TEST_SUCCESS(u8"ｱﾘｶﾞﾄｳ", 6);
+    }
+
+    TEST(CartonWcwdith, Termcolor) {
+        // TODO: Fix this after finish "termcolor".
+        // assert_eq!(wcswidth(&colored("abc", Color::Red, Default::default(), Default::default())), 3);
+        // assert_eq!(wcswidth(&colored("中文", Color::Red, Default::default(), Default::default())), 4);
+        // assert_eq!(wcswidth(&colored("ありがとう", Color::Red, Default::default(), Default::default())), 10);
+    }
+
+} // namespace yycctest::carton::wcwidth