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Epub/KoeBook.Epub/Utility/ScrapingHelper.cs

@@ -4,7 +4,7 @@ public static class ScrapingHelper
 {
     public static List<string> SplitBrace(string text)
     {
-        if (text.Length == 1 && text != "「" && text != "」")
+        if (text.Length == 1 && (text == "「" || text == "」"))
             return [text];
 
         var bracket = 0;
@@ -23,25 +23,21 @@ public static List<string> SplitBrace(string text)
         for (var i = 0; i < brackets.Length; i++)
         {
             brackets[i] -= mn;
-            if (text[i] == '「' && brackets[i] == 1 && i != 0)
+            if (text[i] == '「' && brackets[i] == 1 && i != 0 && startIdx != i)
             {
                 result.Add(text[startIdx..i]);
                 startIdx = i;
             }
-            if (text[i] == '」' && brackets[i] == 0 && i != 0)
+            if (text[i] == '」' && brackets[i] == 0)
             {
                 result.Add(text[startIdx..(i + 1)]);
                 startIdx = i + 1;
             }
         }
-        if (startIdx != text.Length - 1)
+        if (startIdx != text.Length)
         {
             result.Add(text[startIdx..]);
         }
-        if (result[^1] == "")
-        {
-            result.RemoveAt(result.Count - 1);
-        }
 
         return result;
     }

KoeBook.Test/Epub/ScrapingHelperTest.cs

@@ -0,0 +1,44 @@
+using KoeBook.Epub.Utility;
+
+namespace KoeBook.Test.Epub;
+
+public class ScrapingHelperTest
+{
+    public static object[][] TestCases()
+    {
+        (string, List<string>)[] cases = [
+            ("「", ["「"]),
+            ("」", ["」"]),
+            ("a", ["a"]),
+            ("abc「abc」abc", ["abc", "「abc」", "abc"]),
+            ("abc「abc」", ["abc", "「abc」"]),
+            ("「abc」abc", ["「abc」", "abc",]),
+            ("abc「abc」", ["abc", "「abc」"]),
+            ("「abc」", ["「abc」",]),
+            ("abc「abc", ["abc", "「abc"]),
+            ("abc「", ["abc", "「"]),
+            ("「abc", ["「abc"]),
+            ("abc」abc", ["abc」", "abc"]),
+            ("abc」", ["abc」"]),
+            ("」abc", ["」", "abc"]),
+            ("abc「abc」abc「abc」abc", ["abc", "「abc」", "abc", "「abc」", "abc"]),
+            ("「abc」abc「abc」abc", ["「abc」", "abc", "「abc」", "abc"]),
+            ("abc「abc」「abc」abc", ["abc", "「abc」", "「abc」", "abc"]),
+            ("abc「abc」abc「abc」", ["abc", "「abc」", "abc", "「abc」"]),
+            ("abc「abc「abc」abc」abc", ["abc", "「abc「abc」abc」", "abc"]),
+            ("abc「abc「abc」abc", ["abc", "「abc「abc」abc"]),
+            ("abc「abc」abc」abc", ["abc「abc」abc」", "abc"]),
+            ("abc「abc「abc", ["abc", "「abc「abc"]),
+            ("abc」abc」abc", ["abc」abc」", "abc"])
+        ];
+        return cases.Select(c => new object[] { c.Item1, c.Item2 }).ToArray();
+    }
+
+    [Theory]
+    [MemberData(nameof(TestCases))]
+    public void SplitBraceTest(string text, List<string> expected)
+    {
+        Assert.Equal(expected, ScrapingHelper.SplitBrace(text));
+
+    }
+}