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) 


4572
4573
4574
4575
4576
 
# File 'lib/syntax_tree/node.rb', line 4572

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.



4579
4580
4581
 
# File 'lib/syntax_tree/node.rb', line 4579

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.



4585
4586
4587
4588
4589
4590
4591
4592
4593
4594
4595
4596
4597
4598
4599
 
# File 'lib/syntax_tree/node.rb', line 4585

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