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require 'rdoc/ri/ri_paths'
require 'rdoc/ri/ri_cache'
require 'rdoc/ri/ri_util'
require 'rdoc/ri/ri_reader'
require 'rdoc/ri/ri_formatter'
require 'rdoc/ri/ri_options'
######################################################################
class RiDriver
def initialize
@options = RI::Options.instance
@options.parse
paths = @options.paths || RI::Paths::PATH
if paths.empty?
$stderr.puts "No ri documentation found in:"
[ RI::Paths::SYSDIR, RI::Paths::SITEDIR, RI::Paths::HOMEDIR].each do |d|
$stderr.puts " #{d}"
end
$stderr.puts "\nWas rdoc run to create documentation?"
exit 1
end
@ri_reader = RI::RiReader.new(RI::RiCache.new(paths))
@display = @options.displayer
end
######################################################################
# If the list of matching methods contains exactly one entry, or
# if it contains an entry that exactly matches the requested method,
# then display that entry, otherwise display the list of
# matching method names
def report_method_stuff(requested_method_name, methods)
if methods.size == 1
method = @ri_reader.get_method(methods[0])
@display.display_method_info(method)
else
entries = methods.find_all {|m| m.name == requested_method_name}
if entries.size == 1
method = @ri_reader.get_method(entries[0])
@display.display_method_info(method)
else
@display.display_method_list(methods)
end
end
end
######################################################################
def report_class_stuff(requested_class_name, namespaces)
if namespaces.size == 1
klass = @ri_reader.get_class(namespaces[0])
@display.display_class_info(klass, @ri_reader)
else
entries = namespaces.find_all {|m| m.full_name == requested_class_name}
if entries.size == 1
klass = @ri_reader.get_class(entries[0])
@display.display_class_info(klass, @ri_reader)
else
@display.display_class_list(namespaces)
end
end
end
######################################################################
def get_info_for(arg)
desc = NameDescriptor.new(arg)
namespaces = @ri_reader.top_level_namespace
for class_name in desc.class_names
namespaces = @ri_reader.lookup_namespace_in(class_name, namespaces)
if namespaces.empty?
raise RiError.new("Nothing known about #{arg}")
end
end
if desc.method_name.nil?
report_class_stuff(desc.class_names.join('::'), namespaces)
else
methods = @ri_reader.find_methods(desc.method_name,
desc.is_class_method,
namespaces)
if methods.empty?
raise RiError.new("Nothing known about #{arg}")
else
report_method_stuff(desc.method_name, methods)
end
end
end
######################################################################
def process_args
if @options.list_classes
classes = @ri_reader.class_names
@display.list_known_classes(classes)
else
if ARGV.size.zero?
@display.display_usage
else
begin
ARGV.each do |arg|
get_info_for(arg)
end
rescue RiError => e
$stderr.puts(e.message)
exit(1)
end
end
end
end
end # class RiDriver
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