Gems:

• enums - safe enum / enumeration types - a set of symbolic keys bound to unique integer numbers (incl. bit flags option)

• logutils - (lite) logger library
• logutils-activerecord - addon for database support (e.g. LogDb, log model etc.)
• logutils-admin - addon for browsing logs in database (e.g. LogDb, log model etc.)

• props - manage settings hierarchies (commandline, user, home, defaults, etc.)
• props-activerecord - addon for database support (ConfDb, props model, etc.)

• iniparser - read / parse INI configuration, settings and data files into a hash (incl. named subsections)

• alphabets - alphabet (a-z) helpers incl. unaccent, downcase, variants, and more
• date-formats - read / parse and print dates (and times) from around the world
• date-formatter - date formatter by example; auto-builds the strftime format string from an example date

• records - frozen / immutable structs with copy on updates

• shell-lite - run / execute shell commands

The scripts are dedicated to the public domain. Use it as you please with no restrictions whatsoever.