module PryCoolline::ParenMatch::AST
This module contains the different kinds of AST
nodes generated when trying to match pairs of opening and closing characters.
Constants
- Root
The root of the
AST
tree. @attr [Array<Leaf, DanglingClose, Node>] elements All the top-levelnodes of the tree.
Public Instance Methods
pair_at(pos)
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Finds the opening and closing tokens that should be matched at a certain position in the string.
It is assumed you can be looking for the closing parenthesis when on the opening one, or for the opening one when selecting the character that immediately follows it.
@param [Integer] pos
@return [Pair] An (open, close) pair. Notice both the opening and
closing tokens coud be nil.
# File lib/pry-coolline/paren_match.rb, line 96 def pair_at(pos) elements.each do |el| if pair = el.pair_at(pos) return pair end end Pair.new end