class RegexpExamples::Config
Configuration settings to limit the number/length of Regexp examples generated
Constants
- MAX_GROUP_RESULTS_DEFAULT
Maximum number of characters returned from a char set, to reduce output spam For example, if self.max_group_results = 5 then: d is equivalent to [01234] w is equivalent to [abcde]
- MAX_REPEATER_VARIANCE_DEFAULT
The maximum variance for any given repeater, to prevent a huge/infinite number of examples from being listed. For example, if self.max_repeater_variance = 2 then: .* is equivalent to .{0,2} .+ is equivalent to .{1,3} .{2,} is equivalent to .{2,4} .{,3} is equivalent to .{0,2} .{3,8} is equivalent to .{3,5}
- MAX_RESULTS_LIMIT_DEFAULT
Maximum number of results to be generated, for Regexp#examples This is to prevent the system “freezing” when given instructions like: /[ab]{30}/.examples (Which would attempt to generate 2**30 == 1073741824 examples!!!)
Public Class Methods
# File lib/regexp-examples/config.rb, line 26 def with_configuration(**new_config) original_config = config.dup begin update_config(**new_config) result = yield ensure update_config(**original_config) end result end
Private Class Methods
# File lib/regexp-examples/config.rb, line 55 def config Thread.current[:regexp_examples_config] ||= { max_repeater_variance: MAX_REPEATER_VARIANCE_DEFAULT, max_group_results: MAX_GROUP_RESULTS_DEFAULT, max_results_limit: MAX_RESULTS_LIMIT_DEFAULT } end
# File lib/regexp-examples/config.rb, line 51 def update_config(**args) Thread.current[:regexp_examples_config].merge!(args) end