Validator Library

This is a shared package in use by various Choria projects that provide input validation:

Validation is done using an expression language called Expr meaning multiple expressions can be combined.

It provides:

• A generic Go validator library
• A Validator compatible with Fisk
• A Validator compatible with Survey

It provides the following validators:

Validator	Description
is_ip / isIP	Validates the value is a valid IP address (IPv4 or IPv6)
is_ipv4 / isIPv4	Validates the value is a valid IPv4 address
is_ipv6 / isIPv6	Validates the value is a valid IPv6 address
is_int / isInt	Validates the value is an integer of any size
is_float / isFloat	Validates the value is a floating point number of any size
is_duration / isDuration	Validates the value is a valid duration using fisk.ParseDuration
is_regex / isRegex	Validates the value matches a regular expression, e.g. is_regex(value, "^[a-z]+$")
is_shellsafe / isShellSafe	Validates the value does not contain shell-unsafe characters
is_hostname / isHostname	Validates the value is a valid hostname per RFC 1123
is_fqdn / isFQDN	Validates the value is a valid fully qualified domain name per RFC 1123