Class: Patter::Pattern

Inherits:
Object
  • Object
show all
Defined in:
lib/patter/pattern.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(pattern, source_provider = SourceProvider.instance) ⇒ Pattern

Returns a new instance of Pattern.



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# File 'lib/patter/pattern.rb', line 19

def initialize(pattern, source_provider = SourceProvider.instance)
    @pattern = pattern
    @source_provider = source_provider
end

Class Method Details

.help ⇒ Object 



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# File 'lib/patter/pattern.rb', line 51

def self.help
    return "        TAGS\n\n            {A} adjective       {N} noun\n            {S} symbol          {D} digit\n            {C} character\n\n        MODIFIERS\n\n            s: plural           t: titlecase\n            u: uppercase        l: lowercase\n            a: AlTeRnAtE case\n            <number>: repeat <number> times\n\n        Apply modifiers using a colon after the tag name.\n\n        EXAMPLES\n\n            Ten random uppercase letters: {C:10u}\n            Three camelcase nouns:        {N:3t}\n            Plural, titlecase noun:       {N:ts}\n            Uppercase adjective:          {A:u}\n            Five random digits:           {D:5}\n            A username:                   {A}_{N}\n    EOF\nend\n"

Instance Method Details

#to_s ⇒ Object 



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# File 'lib/patter/pattern.rb', line 24

def to_s
    @pattern.gsub(/\{([#{TAGS.keys.join}])(:(\w+))?\}/) do
        tag, modifiers = $1, $3
        source = @source_provider.get_source(TAGS[tag])

        next source.get_sample if !modifiers

        re = /([#{MODIFIERS.keys.join}])|([0-9]+)/
        chain = []
        n = 1

        modifiers.split(re).reject(&:empty?).each do |modifier|
            if modifier =~ /([0-9]+)/
                n = $1.to_i
            end

            if MODIFIERS[modifier]
                chain << MODIFIERS[modifier]
            end
        end

        source.get_samples(n).map do |sample|
            sample.transform(chain)
        end.join
    end
end