147 lines
4.0 KiB
JavaScript
147 lines
4.0 KiB
JavaScript
const fs = require('fs');
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const path = require('path');
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const csvFolderPath = './csv';
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// 引用符内の改行を保持したままCSVをレコード単位で分割
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function splitCsvRecords(content) {
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const records = [];
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let current = '';
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let inQuotes = false;
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for (let i = 0; i < content.length; i += 1) {
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const char = content[i];
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const next = content[i + 1];
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if (char === '"') {
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if (inQuotes && next === '"') {
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current += '""';
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i += 1;
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} else {
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inQuotes = !inQuotes;
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current += char;
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}
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continue;
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}
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if (!inQuotes && (char === '\n' || char === '\r')) {
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records.push(current);
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current = '';
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// CRLFは1つの改行として扱う
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if (char === '\r' && next === '\n') {
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i += 1;
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}
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continue;
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}
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current += char;
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}
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if (current.length > 0) {
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records.push(current);
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}
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// 末尾空行由来の空レコードを除外
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while (records.length > 0 && records[records.length - 1].trim() === '') {
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records.pop();
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}
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return records;
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}
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// ダブルクォーテーションを含むCSV1行を解析
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function parseCsvLine(line) {
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const fields = [];
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let current = '';
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let inQuotes = false;
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for (let i = 0; i < line.length; i += 1) {
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const char = line[i];
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if (char === '"') {
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// "" はエスケープされたダブルクォーテーション
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if (inQuotes && line[i + 1] === '"') {
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current += '"';
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i += 1;
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} else {
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inQuotes = !inQuotes;
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}
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continue;
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}
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if (char === ',' && !inQuotes) {
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fields.push(current);
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current = '';
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continue;
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}
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current += char;
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}
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fields.push(current);
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return fields;
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}
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// フィールドをCSV形式へ再構築
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function toCsvLine(fields) {
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return fields
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.map(field => `"${String(field).replace(/"/g, '""')}"`)
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.join(',');
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}
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// CSVファイルを読み込む関数
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function processCSVFiles() {
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const files = fs.readdirSync(csvFolderPath).filter(file => file.endsWith('.csv'));
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files.forEach(file => {
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const filePath = path.join(csvFolderPath, file);
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const content = fs.readFileSync(filePath, 'utf-8');
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const eol = content.includes('\r\n') ? '\r\n' : '\n';
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const records = splitCsvRecords(content);
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// ヘッダ行のみの場合
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if (records.length === 1) {
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if (file.startsWith('✕')) {
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return;
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}
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const newFileName = `✕${file}`;
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const newFilePath = path.join(csvFolderPath, newFileName);
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fs.renameSync(filePath, newFilePath);
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console.log(`Renamed: ${file} → ${newFileName}`);
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return;
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}
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// データが1行以上ある場合
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let modified = false;
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const updatedRecords = records.map((record, index) => {
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if (index === 0) return record; // ヘッダ行はスキップ
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const fields = parseCsvLine(record);
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const firstField = fields[0];
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// "（P）"と"(P)"のすべてのパターンを削除
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const patterns = ['（P）', '(P)', '（P)', '(P）'];
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let updatedField = firstField;
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patterns.forEach(pattern => {
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if (updatedField.endsWith(pattern)) {
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updatedField = updatedField.slice(0, -pattern.length);
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modified = true;
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}
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});
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fields[0] = updatedField;
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return toCsvLine(fields);
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});
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// 修正があった場合、ファイルを上書き
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if (modified) {
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fs.writeFileSync(filePath, updatedRecords.join(eol), 'utf-8');
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console.log(`Modified: ${file}`);
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}
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});
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}
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processCSVFiles(); |