Class: I18n::Tasks::Data::Router::IsolatingRouter::Glob

Inherits:
Object
  • Object
show all
Defined in:
lib/i18n/tasks/data/router/isolating_router.rb

Overview

based on github.com/alexch/rerun/blob/36f2d237985b670752abbe4a7f6814893cdde96f/lib/rerun/glob.rb

Constant Summary collapse

NO_LEADING_DOT = 
'(?=[^\.])'
START_OF_FILENAME = 
'(?:\A|\/)'
END_OF_STRING = 
'\z'

Instance Method Summary collapse

Constructor Details

#initialize(pattern) ⇒ Glob

Returns a new instance of Glob.



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# File 'lib/i18n/tasks/data/router/isolating_router.rb', line 78

def initialize(pattern)
  @pattern = pattern
end

Instance Method Details

#smoosh(chars) ⇒ Object 



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# File 'lib/i18n/tasks/data/router/isolating_router.rb', line 129

def smoosh(chars)
  out = []
  until chars.empty?
    char = chars.shift
    if char == '*' && chars.first == '*'
      chars.shift
      chars.shift if chars.first == '/'
      out.push('**')
    else
      out.push(char)
    end
  end
  out
end

#to_regexp ⇒ Object 



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# File 'lib/i18n/tasks/data/router/isolating_router.rb', line 125

def to_regexp
  Regexp.new(to_regexp_string)
end

#to_regexp_string ⇒ Object

rubocop:disable Metrics/CyclomaticComplexity, Metrics/MethodLength



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# File 'lib/i18n/tasks/data/router/isolating_router.rb', line 82

def to_regexp_string # rubocop:disable Metrics/CyclomaticComplexity, Metrics/MethodLength
  chars = smoosh(@pattern.chars)

  curlies = 0
  escaping = false

  string = chars.map do |char|
    if escaping
      escaping = false
      next char
    end

    case char
    when '**' then '(?:[^/]+/)*'
    when '*' then '.*'
    when '?' then '.'
    when '.' then '\.'
    when '{'
      curlies += 1
      '('
    when '}'
      if curlies.positive?
        curlies -= 1
        ')'
      else
        char
      end
    when ','
      if curlies.positive?
        '|'
      else
        char
      end
    when '\\'
      escaping = true
      '\\'
    else char
    end
  end.join

  START_OF_FILENAME + string + END_OF_STRING
end