throw ConfigurationException instead of returning null, if database or formatter of given name is not configured

allow multiple databases connection test in --test-connection

formatted output for: --test-connection

formatted output for: --list-formatters --list-databases

allow custom formatters also for JUST_SHOW_INFO commands

use formatter also for printing info! --list-types

InfoLister, InfoType: switch → enum

SQLType enum wrapper for java.sql.Types

option --list-formatters – list configured and built-in formatters

option --list-databases list configured databases

option --test-connection – tests connection to given database

use System.out if mode is JUST_SHOW_INFO (thus user can easily read license or help using … | less)

validation: test if prefix/suffix are valid regular expressions

types update

expect invalid regexp in prefix/suffix and throw wrapped exception → better exit code

SingleValueFormatter