88219e657f
Headers now refresh live when delimiter, encoding, skipLines, or hasHeader changes. Added YYYYMMDD compact date format to parser and dropdown. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
64 lines
1.8 KiB
TypeScript
64 lines
1.8 KiB
TypeScript
/**
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* Parse a date string with a given format and return ISO YYYY-MM-DD.
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* Supported formats: DD/MM/YYYY, MM/DD/YYYY, YYYY-MM-DD, DD-MM-YYYY, DD.MM.YYYY, YYYYMMDD
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*/
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export function parseDate(raw: string, format: string): string {
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if (!raw || typeof raw !== "string") return "";
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const cleaned = raw.trim();
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let day: string, month: string, year: string;
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// Handle compact format YYYYMMDD (no separator)
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if (format === "YYYYMMDD") {
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const digits = cleaned.replace(/\D/g, "");
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if (digits.length !== 8) return "";
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year = digits.substring(0, 4);
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month = digits.substring(4, 6);
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day = digits.substring(6, 8);
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const y = parseInt(year, 10);
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const m = parseInt(month, 10);
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const d = parseInt(day, 10);
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if (isNaN(y) || isNaN(m) || isNaN(d)) return "";
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if (m < 1 || m > 12 || d < 1 || d > 31) return "";
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return `${year}-${month}-${day}`;
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}
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// Extract parts based on separator
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const parts = cleaned.split(/[/\-\.]/);
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if (parts.length !== 3) return "";
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switch (format) {
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case "DD/MM/YYYY":
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case "DD-MM-YYYY":
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case "DD.MM.YYYY":
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[day, month, year] = parts;
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break;
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case "MM/DD/YYYY":
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case "MM-DD-YYYY":
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[month, day, year] = parts;
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break;
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case "YYYY-MM-DD":
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case "YYYY/MM/DD":
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[year, month, day] = parts;
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break;
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default:
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// Default to DD/MM/YYYY (French)
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[day, month, year] = parts;
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break;
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}
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// Validate
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const y = parseInt(year, 10);
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const m = parseInt(month, 10);
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const d = parseInt(day, 10);
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if (isNaN(y) || isNaN(m) || isNaN(d)) return "";
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if (m < 1 || m > 12 || d < 1 || d > 31) return "";
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// Handle 2-digit years
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const fullYear = y < 100 ? (y > 50 ? 1900 + y : 2000 + y) : y;
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return `${fullYear.toString().padStart(4, "0")}-${m.toString().padStart(2, "0")}-${d.toString().padStart(2, "0")}`;
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}
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