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Contents
class Card
module Query
class CardQuery
# normalize clause's keys and values.
module Normalization
def normalize_clause clause
clause = clause_to_hash clause
clause.symbolize_keys!
clause.each do |key, val|
next if key.to_sym == :return
# when return values are relative, they are relative to the name of the
# card returned, not the context card
clause[key] = normalize_value val
end
clause
end
def clause_to_hash clause
case clause
when Hash then clause
when Integer then { id: clause }
when String then { id: (Card::Lexicon.id(clause) || -2) }
when Symbol then { id: Card::Codename.id(clause) }
else raise Error::BadQuery, "Invalid clause: #{clause.inspect}"
end
end
def normalize_value val
case val
when Integer, Float, Hash, Symbol, NilClass then val
when String then normalize_string_value val
when Array then normalize_array_value val
else raise Error::BadQuery, "Invalid value type: #{val.class} (#{val.inspect})"
end
end
def normalize_array_value val
val.map { |v| normalize_value v }
end
def normalize_string_value val
case val.to_s
when /^\$(\w+)$/
# replace from @vars when value starts with dollar sign
string_value_from_var Regexp.last_match[1]
when /\b_/
# absolutize based on @context when there are words beginning with "_"
val.to_name.absolute(context)
else
val
end
end
def string_value_from_var varname
@vars[varname.to_sym].to_s.strip
end
end
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems