cron-schedule-parserlisted

# Cron Schedule Parser ## Prerequisites & Dependencies - Python 3.10+ (for cron expression parsing) - No external runtime dependencies; pure-Python cron library optional ## Execution Steps 1. **Identify the cron expression format**: Determine if the input is a standard 5-part cron (minute hour day month weekday) or 6-part format (including seconds). 2. **Parse the cron expression**: Use a cron library or manual parsing to extract the five (or six) time fields: minute, hour, day-of-month, month, day-of-week. 3. **Convert to cron format**: If the input is in natural language (e.g., "every hour", "first Monday of the month"), translate it into the standard cron five-part format. 4. **Validate the cron expression**: Check that the parsed values are valid (e.g., minute 0-59, hour 0-23, day-of-month 1-31, month 1-12, weekday 0-6). 5. **Output the cron schedule**: Produce the cron expression string that can be used in crontab files or scripts. 6. **Example outputs**: - "Every hour" → `0 * * * *` - "Daily at 8am" → `0 8 * * *` - "First Monday of every month" → `0 0 * * 1` - "Every 15 minutes" → `*/15 * * * *` ```bash npm i node-cron ``` ```python import croniter from datetime import datetime base = datetime.now() schedule = croniter.croniter('0 * * * *', base) next_time = schedule.get_next(datetime) ``` ## CLI Usage ```bash cron-schedule-parser "every hour" # Output: 0 * * * * ```