OS library ("os")

• environment variables
• time and date
• locale / regional settings

Functions:

• os_gettype - returns the name of closest known OS type match, defined at compile time
• os_command - pass command to OS command processor
• os_getenv - returns the value of the specified environment variable
• os_putenv - set an environment variable
• os_time - returns the time in seconds, optionally from a different time zone
• os_get_timezone - returns the time zone set in OS, optionally as string
• os_date_string - format a time value into a string
• os_parse_time - split time value into components
• os_make_time - make a time value from components
• os_get_locale - returns current locale of the specified category
• os_set_locale - set locale for the specified category
• os_get_locale_format - returns locale formatting info
• os_locale_strcmp - compare two strings using locale

Constants:

• LC_*** - locale categories