class Haml::Buffer
def self.merge_attrs(to, from)
-
({String => String})
- `to`, after being merged
Parameters:
-
from
({String => #to_s}
) -- The attribute hash to merge from -
to
({String => String}
) -- The attribute hash to merge into
def self.merge_attrs(to, from) from['id'] = Compiler.filter_and_join(from['id'], '_') if from['id'] if to['id'] && from['id'] to['id'] << '_' << from.delete('id').to_s elsif to['id'] || from['id'] from['id'] ||= to['id'] end from['class'] = Compiler.filter_and_join(from['class'], ' ') if from['class'] if to['class'] && from['class'] # Make sure we don't duplicate class names from['class'] = (from['class'].to_s.split(' ') | to['class'].split(' ')).sort.join(' ') elsif to['class'] || from['class'] from['class'] ||= to['class'] end from_data = from.delete('data') || {} to_data = to.delete('data') || {} # forces to_data & from_data into a hash from_data = { nil => from_data } unless from_data.is_a?(Hash) to_data = { nil => to_data } unless to_data.is_a?(Hash) merged_data = to_data.merge(from_data) to['data'] = merged_data unless merged_data.empty? to.merge!(from) end