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Contents
module Liquidscript
module Scanner
class Base
class Context
attr_reader :name
def initialize(name)
@name = name
@matches = {}
@temps = {}
@actions = {}
end
def action(name, &block)
@actions[name] = block
end
def find_matcher(with)
best_match = [0, nil, nil]
@matches.each do |k, v|
if with.match?(k) && with.matched_size > best_match[0]
best_match = [with.matched_size, k, v]
end
end
best_match[1..-1]
end
def exit
EXIT
end
def init
if block_given?
@init = Proc.new
else
@init || proc {}
end
end
def set(key, matcher)
@temps[key] = matcher
end
def get(key)
normalize_matcher @temps[key]
end
def on(matcher, action = nil)
key = nil
value = nil
if block_given?
key = normalize_matcher matcher
value = Proc.new
elsif action
key = normalize_matcher matcher
value = @actions.fetch(action)
else
key = normalize_matcher matcher.keys.first
value = matcher.values.first
end
@matches[key] = value
end
private
def normalize_matcher(matcher)
case matcher
when :_
/./m
when String
Regexp.new(Regexp.escape(matcher))
when Symbol
normalize_matcher(@temps[matcher])
when Array
union = matcher.map { |m|
Regexp.escape(m.to_s)
}.join('|')
Regexp.new "(#{union})"
else
matcher
end
end
end
end
end
end
Version data entries
16 entries across 16 versions & 1 rubygems