Module: SyntaxTree::Quotes

Defined in:
lib/syntax_tree/node.rb

Overview

Responsible for providing information about quotes to be used for strings and dynamic symbols.

Constant Summary collapse

PAIRS =

The matching pairs of quotes that can be used with % literals.

{ "(" => ")", "[" => "]", "{" => "}", "<" => ">" }.freeze

Class Method Summary collapse

Class Method Details

.locked?(node, quote) ⇒ Boolean

If there is some part of this string that matches an escape sequence or that contains the interpolation pattern (“#{”), then we are locked into whichever quote the user chose. (If they chose single quotes, then double quoting would activate the escape sequence, and if they chose double quotes, then single quotes would deactivate it.)

Returns:

  • (Boolean) 


4603
4604
4605
4606
4607
 
# File 'lib/syntax_tree/node.rb', line 4603

def self.locked?(node, quote)
  node.parts.any? do |part|
    !part.is_a?(TStringContent) || part.value.match?(/\\|#[@${]|#{quote}/)
  end
end

.matching(quote) ⇒ Object

Find the matching closing quote for the given opening quote.



4610
4611
4612
 
# File 'lib/syntax_tree/node.rb', line 4610

def self.matching(quote)
  PAIRS.fetch(quote) { quote }
end

.normalize(content, enclosing) ⇒ Object

Escape and unescape single and double quotes as needed to be able to enclose content with enclosing.



4616
4617
4618
4619
4620
4621
4622
4623
4624
4625
4626
4627
4628
4629
4630
 
# File 'lib/syntax_tree/node.rb', line 4616

def self.normalize(content, enclosing)
  return content if enclosing != "\"" && enclosing != "'"

  content.gsub(/\\([\s\S])|(['"])/) do
    _match, escaped, quote = Regexp.last_match.to_a

    if quote == enclosing
      "\\#{quote}"
    elsif quote
      quote
    else
      "\\#{escaped}"
    end
  end
end