CronExpression

Description

Objective C cron expression parser that can parse a CRON expression, determine if it is due to run, and calculate the next run date of the expression. The parser can handle increments of ranges (e.g. */12, 2-59/3), intervals (e.g. 0-9), lists (e.g. 1,2,3), W to find the nearest weekday for a given day of the month, L to find the last day of the month, L to find the last given weekday of a month, and hash (#) to find the nth weekday of a given month.

Initially the library will be packaged for use in iOS but will later be updated to include a Cocoa build target.

This library is ported from the the PHP cron-expression library created by mtdowling.

Progress

This library is currently incomplete. Most of the code has been ported but the unit tests are incomplete. The original PHP code is still included inline as comments.