Update README.md

README.md

@@ -30,4 +30,39 @@ size_categories:
 ---
 
 
-HF Datasets version of [Tanaka Corpus](http://www.edrdg.org/wiki/index.php/Tanaka_Corpus).
+HF Datasets version of [Tanaka Corpus](http://www.edrdg.org/wiki/index.php/Tanaka_Corpus).
+
+
+## Preprocess for HF Datasets
+
+Download dataset
+
+```bash
+wget ftp://ftp.edrdg.org/pub/Nihongo/examples.utf.gz
+```
+
+then,
+
+```python
+import re
+from pathlib import Path
+
+from more_itertools import chunked
+
+import datasets as ds
+
+data = []
+with Path("examples.utf").open() as f:
+    for row, _ in chunked(f, 2):
+        ja, en, idx = re.findall(r"A: (.*?)\t(.*?)#ID=(.*$)", row)[0]
+        data.append(
+            {
+                "id": idx,
+                "ja": ja.strip(),
+                "en": en.strip(),
+            }
+        )
+
+dataset = ds.Dataset.from_list(data)
+dataset.push_to_hub("hpprc/tanaka-corpus")
+```