class Icalendar::Parser
Constants
- BAD_LINE
- LINE
- NAME
- PARAM
- PTEXT
- PVALUE
- QSTR
- VALUE
Attributes
source[R]
strict[R]
Public Class Methods
new(source, strict = false)
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# File lib/icalendar/parser.rb, line 7 def initialize(source, strict = false) if source.respond_to? :gets @source = source elsif source.respond_to? :to_s @source = StringIO.new source.to_s, 'r' else msg = 'Icalendar::Parser.new must be called with a String or IO object' Icalendar.fatal msg fail ArgumentError, msg end read_in_data @strict = strict end
Public Instance Methods
get_wrapper_class(component, fields)
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# File lib/icalendar/parser.rb, line 72 def get_wrapper_class(component, fields) klass = component.class.default_property_types[fields[:name]] if !fields[:params]['value'].nil? klass_name = fields[:params].delete('value').first unless klass_name.upcase == klass.value_type klass_name = klass_name.downcase.gsub(/(?:\A|-)(.)/) { |m| m[-1].upcase } klass = Icalendar::Values.const_get klass_name if Icalendar::Values.const_defined?(klass_name) end end klass end
parse()
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# File lib/icalendar/parser.rb, line 21 def parse source.rewind read_in_data calendars = [] while (fields = next_fields) if fields[:name] == 'begin' && fields[:value].downcase == 'vcalendar' calendars << parse_component(Calendar.new) end end calendars end
parse_property(component, fields = nil)
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# File lib/icalendar/parser.rb, line 33 def parse_property(component, fields = nil) fields = next_fields if fields.nil? prop_value = wrap_property_value component, fields prop_name = %w(class method).include?(fields[:name]) ? "ip_#{fields[:name]}" : fields[:name] begin method_name = if component.class.multiple_properties.include? prop_name "append_#{prop_name}" else "#{prop_name}=" end component.send method_name, prop_value rescue NoMethodError => nme if strict? Icalendar.logger.error "No method \"#{method_name}\" for component #{component}" raise nme else Icalendar.logger.warn "No method \"#{method_name}\" for component #{component}. Appending to custom." component.append_custom_property prop_name, prop_value end end end
strict?()
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# File lib/icalendar/parser.rb, line 84 def strict? !!@strict end
wrap_property_value(component, fields)
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# File lib/icalendar/parser.rb, line 55 def wrap_property_value(component, fields) klass = get_wrapper_class component, fields if klass.value_type != 'RECUR' && fields[:value] =~ /(?<!\)([,;])/ delimiter = $1 Icalendar::Values::Array.new fields[:value].split(/(?<!\)[;,]/), klass, fields[:params], delimiter: delimiter else klass.new fields[:value], fields[:params] end rescue Icalendar::Values::DateTime::FormatError => fe raise fe if strict? fields[:params]['value'] = ['DATE'] retry end
Private Instance Methods
next_fields()
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# File lib/icalendar/parser.rb, line 115 def next_fields line = @data or return nil loop do read_in_data if @data =~ /\A[ \t].+\z/ line << @data[1, @data.size] elsif @data !~ /\A\s*\z/ break end end parse_fields line end
parse_component(component)
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# File lib/icalendar/parser.rb, line 90 def parse_component(component) while (fields = next_fields) if fields[:name] == 'end' break elsif fields[:name] == 'begin' klass_name = fields[:value].gsub(/\AV/, '').downcase.capitalize Icalendar.logger.debug "Adding component #{klass_name}" if Icalendar.const_defined? klass_name component.add_component parse_component(Icalendar.const_get(klass_name).new) elsif Icalendar::Timezone.const_defined? klass_name component.add_component parse_component(Icalendar::Timezone.const_get(klass_name).new) else component.add_component parse_component(Component.new klass_name.downcase, fields[:value]) end else parse_property component, fields end end component end
parse_fields(input)
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# File lib/icalendar/parser.rb, line 137 def parse_fields(input) if parts = %r{#{LINE}}.match(input) value = parts[:value] else parts = %r{#{BAD_LINE}}.match(input) unless strict? parts or fail "Invalid iCalendar input line: #{input}" # Non-strict and bad line so use a value of empty string value = '' end params = {} parts[:params].scan %r{#{PARAM}} do |match| param_name = match[0].downcase params[param_name] ||= [] match[1].scan %r{#{PVALUE}} do |param_value| params[param_name] << param_value.gsub(/\A"|"\z/, '') if param_value.size > 0 end end Icalendar.logger.debug "Found fields: #{parts.inspect} with params: #{params.inspect}" { name: parts[:name].downcase.gsub('-', '_'), params: params, value: value } end
read_in_data()
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# File lib/icalendar/parser.rb, line 111 def read_in_data @data = source.gets and @data.chomp! end