Untis-API: Fehlzeiten abgleich

2026-08-25 00:21:53 +02:00
parent 17475a781f
commit 87a7badb44
21 changed files with 593 additions and 298 deletions
@@ -0,0 +1,55 @@
+using System.Text;
+
+namespace LehrerApp.WebUntis;
+
+internal static class TabSeparatedTextReader
+{
+    public static List<List<string>> ParseRows(string content, char separator)
+    {
+        var rows = new List<List<string>>();
+        var row = new List<string>();
+        var field = new StringBuilder();
+        var inQuotes = false;
+
+        for (var index = 0; index < content.Length; index++)
+        {
+            var character = content[index];
+            if (character == '"')
+            {
+                if (inQuotes && index + 1 < content.Length && content[index + 1] == '"')
+                {
+                    field.Append('"');
+                    index++;
+                }
+                else
+                {
+                    inQuotes = !inQuotes;
+                }
+                continue;
+            }
+
+            if (!inQuotes && character == separator)
+            {
+                row.Add(field.ToString());
+                field.Clear();
+                continue;
+            }
+
+            if (!inQuotes && character == '\n')
+            {
+                row.Add(field.ToString());
+                rows.Add(row);
+                row = [];
+                field.Clear();
+                continue;
+            }
+
+            if (!inQuotes && character == '\r') continue;
+            field.Append(character);
+        }
+
+        row.Add(field.ToString());
+        if (row.Count > 1 || !string.IsNullOrWhiteSpace(row[0])) rows.Add(row);
+        return rows;
+    }
+}