module Sanitize::Config
Constants
- BASIC
- DEFAULT
- RELAXED
- RESTRICTED
Public Class Methods
freeze_config(config)
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Deeply freezes and returns the given configuration Hash.
# File lib/sanitize/config.rb, line 9 def self.freeze_config(config) if Hash === config config.each_value {|c| freeze_config(c) } elsif Array === config || Set === config config.each {|c| freeze_config(c) } end config.freeze end
merge(config, other_config = {})
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Returns a new Hash containing the result of deeply merging other_config into config. Does not modify config or other_config.
This is the safest way to use a built-in Sanitize
config as the basis for your own custom config.
# File lib/sanitize/config.rb, line 24 def self.merge(config, other_config = {}) raise ArgumentError, 'config must be a Hash' unless Hash === config raise ArgumentError, 'other_config must be a Hash' unless Hash === other_config merged = {} keys = Set.new(config.keys + other_config.keys) keys.each do |key| oldval = config[key] if other_config.has_key?(key) newval = other_config[key] if Hash === oldval && Hash === newval merged[key] = oldval.empty? ? newval.dup : merge(oldval, newval) elsif Array === newval && key != :transformers merged[key] = Set.new(newval) else merged[key] = can_dupe?(newval) ? newval.dup : newval end else merged[key] = can_dupe?(oldval) ? oldval.dup : oldval end end merged end
Private Class Methods
can_dupe?(value)
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Returns ‘true` if `dup` may be safely called on value, `false` otherwise.
# File lib/sanitize/config.rb, line 54 def self.can_dupe?(value) !(true == value || false == value || value.nil? || Method === value || Numeric === value || Symbol === value) end