名鉄線英語駅名修正

[TinyKitten]

Summary

• replace all-uppercase English station names on the Meitetsu Nagoya Main Line in data/3!stations.csv
• normalize obvious spelling issues while converting to formal casing

Verification

• confirmed all 60 line_cd=30001 rows no longer contain all-uppercase values in station_name_r / station_name_rn
• tests not run (data-only CSV update)

[coderabbitai]

Important

Review skipped

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⛔ Files ignored due to path filters (2)

• data/2!lines.csv is excluded by !**/*.csv
• data/3!stations.csv is excluded by !**/*.csv

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch data/meitetsu-caps

---

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[TinyKitten]

@coderabbitai CSVの破損確認とか英語駅名のチェックとかできたりします？

[coderabbitai]

Tip

For best results, initiate chat on the files or code changes.

🧩 Analysis chain

もちろんです！CSVの整合性確認と英語駅名のチェックを行います。

---

🏁 Script executed:

#!/bin/bash
# Find the stations CSV file
fd -t f "stations" --extension csv | head -20

Length of output: 19

---

🏁 Script executed:

#!/bin/bash
# Also check for any CSV files in data directory
fd -t f "\.csv$" | head -30

Length of output: 173

---

🏁 Script executed:

#!/bin/bash
echo "=== ヘッダー確認 ==="
head -1 data/3!stations.csv

echo ""
echo "=== 総行数 ==="
wc -l data/3!stations.csv

echo ""
echo "=== 列数の一貫性チェック (ヘッダーと異なる行) ==="
python3 - <<'EOF'
import csv

header_cols = None
inconsistent_rows = []
with open("data/3!stations.csv", encoding="utf-8") as f:
    reader = csv.reader(f)
    for i, row in enumerate(reader):
        if i == 0:
            header_cols = len(row)
            print(f"ヘッダー列数: {header_cols}")
            print(f"カラム名: {row}")
            continue
        if len(row) != header_cols:
            inconsistent_rows.append((i+1, len(row), row))

if inconsistent_rows:
    print(f"\n列数が不整合な行:")
    for lineno, cols, row in inconsistent_rows:
        print(f"  行{lineno}: {cols}列 -> {row}")
else:
    print("\n列数の不整合: なし ✅")
EOF

echo ""
echo "=== NULLバイト・制御文字チェック ==="
python3 -c "
data = open('data/3!stations.csv', 'rb').read()
null_count = data.count(b'\x00')
print(f'NULLバイト数: {null_count}')
ctrl_chars = [b for b in data if b < 0x09 or (0x0e <= b <= 0x1f)]
print(f'不正制御文字数: {len(ctrl_chars)}')
if null_count == 0 and len(ctrl_chars) == 0:
    print('エンコード異常: なし ✅')
"

Length of output: 787

---

🏁 Script executed:

#!/bin/bash
echo "=== line_cd=30001 の行数 ==="
python3 - <<'EOF'
import csv

cols = None
rows_30001 = []
with open("data/3!stations.csv", encoding="utf-8") as f:
    reader = csv.DictReader(f)
    for row in reader:
        if row.get("line_cd") == "30001":
            rows_30001.append(row)

print(f"line_cd=30001 の行数: {len(rows_30001)}")

print("\n=== 英語駅名一覧 (station_name_r / station_name_rn) ===")
print(f"{'station_cd':<12} {'station_name':<20} {'station_name_r':<35} {'station_name_rn':<35}")
print("-"*105)
for r in rows_30001:
    print(f"{r.get('station_cd',''):<12} {r.get('station_name',''):<20} {r.get('station_name_r',''):<35} {r.get('station_name_rn',''):<35}")

print("\n=== 全大文字チェック (station_name_r) ===")
all_upper_r = [r for r in rows_30001 if r.get("station_name_r","").isupper() and r.get("station_name_r","").strip()]
if all_upper_r:
    print(f"⚠️ 全大文字が残っている行: {len(all_upper_r)}")
    for r in all_upper_r:
        print(f"  {r.get('station_name','')} -> {r.get('station_name_r','')}")
else:
    print("全大文字の残存: なし ✅")

print("\n=== 全大文字チェック (station_name_rn) ===")
all_upper_rn = [r for r in rows_30001 if r.get("station_name_rn","").isupper() and r.get("station_name_rn","").strip()]
if all_upper_rn:
    print(f"⚠️ 全大文字が残っている行: {len(all_upper_rn)}")
    for r in all_upper_rn:
        print(f"  {r.get('station_name','')} -> {r.get('station_name_rn','')}")
else:
    print("全大文字の残存: なし ✅")

print("\n=== 空欄チェック (station_name_r / station_name_rn) ===")
empty_r  = [r for r in rows_30001 if not r.get("station_name_r","").strip()]
empty_rn = [r for r in rows_30001 if not r.get("station_name_rn","").strip()]
print(f"station_name_r  空欄: {len(empty_r)}")
print(f"station_name_rn 空欄: {len(empty_rn)}")
for r in empty_r:
    print(f"  [空欄 station_name_r ] station_cd={r.get('station_cd','')} station_name={r.get('station_name','')}")
for r in empty_rn:
    print(f"  [空欄 station_name_rn] station_cd={r.get('station_cd','')} station_name={r.get('station_name','')}")
EOF

Length of output: 6864

---

🏁 Script executed:

#!/bin/bash
echo "=== スペルパターンチェック: 先頭以外で大文字が含まれるか (CamelCase混入チェック) ==="
python3 - <<'EOF'
import csv, re

rows_30001 = []
with open("data/3!stations.csv", encoding="utf-8") as f:
    reader = csv.DictReader(f)
    for row in reader:
        if row.get("line_cd") == "30001":
            rows_30001.append(row)

def has_suspect_casing(name):
    # 各単語の先頭以外に大文字があるか(CamelCaseや全大文字残り)
    words = name.split()
    for w in words:
        # 記号除去
        w_clean = re.sub(r"[^A-Za-z]", "", w)
        if not w_clean:
            continue
        if w_clean[1:] != w_clean[1:].lower():
            return True
    return False

suspect = [(r.get("station_name",""), r.get("station_name_r",""), r.get("station_name_rn",""))
           for r in rows_30001
           if has_suspect_casing(r.get("station_name_r","")) or has_suspect_casing(r.get("station_name_rn",""))]

if suspect:
    print("⚠️ 疑わしいケーシング:")
    for name, r, rn in suspect:
        print(f"  {name}: r='{r}' rn='{rn}'")
else:
    print("疑わしいケーシング: なし ✅")

print("\n=== 重複 station_cd チェック ==="  )
all_rows = []
with open("data/3!stations.csv", encoding="utf-8") as f:
    reader = csv.DictReader(f)
    for row in reader:
        all_rows.append(row)

from collections import Counter
cd_counts = Counter(r.get("station_cd","") for r in all_rows)
dups = [(cd, cnt) for cd, cnt in cd_counts.items() if cnt > 1]
if dups:
    print(f"⚠️ 重複 station_cd: {dups}")
else:
    print("重複 station_cd: なし ✅")
EOF

Length of output: 159

---

@TinyKitten チェック完了です！結果をまとめます。

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✅ CSV 整合性チェック

チェック項目	結果
ヘッダー列数	23列（全行一致）
総行数	11,142行（ヘッダー除く）
列数の不整合	なし ✅
NULLバイト / 不正制御文字	なし ✅
重複 station_cd	なし ✅

---

✅ line_cd=30001 英語駅名チェック

チェック項目	結果
対象行数	60行（PR説明と一致） ✅
全大文字残存（station_name_r）	なし ✅
全大文字残存（station_name_rn）	なし ✅
空欄	なし ✅

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⚠️ 要確認: 島氏永 のケーシング不整合

1件だけ気になる箇所があります。

島氏永: Shima-Ujinaga

ハイフン後の U が大文字になっています。同路線の他のハイフン含む駅名はすべて 小文字 です：

駅名	現在の表記
岡崎公園前	Okazakikoen-mae
二ツ杁	Futatsu-iri
新川橋	Shinkawa-bashi
木曽川堤	Kisogawa-zutsumi
中京競馬場前	Chukyo-keibajo-mae
神宮前	Jingu-mae
島氏永	Shima-Ujinaga ← ⚠️ ハイフン後が大文字

Shima-ujinaga に統一するほうが良いかもしれません。名鉄公式の表記も確認いただけると確実です。