Module: ExpandVariables

Defined in:
lib/expand_variables.rb

Constant Summary collapse

VariableExpansionError = 
Class.new(StandardError)
VARIABLES_REGEXP = 
/\$([a-zA-Z_][a-zA-Z0-9_]*)|\${\g<1>}|%\g<1>%/

Class Method Summary collapse

Class Method Details

.expand(value, variables, expand_file_refs: true, fail_on_masked: false) ⇒ Object 



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# File 'lib/expand_variables.rb', line 9

def expand(value, variables, expand_file_refs: true, fail_on_masked: false)
  replace_with(value, variables) do |collection, last_match|
    match_or_blank_value(
      collection, last_match, expand_file_refs: expand_file_refs, fail_on_masked: fail_on_masked
    )
  end
end

.expand_existing(value, variables, expand_file_refs: true, fail_on_masked: false) ⇒ Object 



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# File 'lib/expand_variables.rb', line 17

def expand_existing(value, variables, expand_file_refs: true, fail_on_masked: false)
  replace_with(value, variables) do |collection, last_match|
    match_or_original_value(
      collection, last_match, expand_file_refs: expand_file_refs, fail_on_masked: fail_on_masked
    )
  end
end

.possible_var_reference?(value) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/expand_variables.rb', line 25

def possible_var_reference?(value)
  return unless value

  %w[$ %].any? { |symbol| value.include?(symbol) }
end