Class: RDoc::RI::Driver
- Inherits:
-
Object
- Object
- RDoc::RI::Driver
- Defined in:
- lib/rdoc/ri/driver.rb
Overview
The RI driver implements the command-line ri tool.
The driver supports:
-
loading RI data from:
-
Ruby's standard library
-
RubyGems
-
~/.rdoc
-
A user-supplied directory
-
-
Paging output (uses RI_PAGER environment variable, PAGER environment variable or the less, more and pager programs)
-
Interactive mode with tab-completion
-
Abbreviated names (ri Zl shows Zlib documentation)
-
Colorized output
-
Merging output from multiple RI data sources
Defined Under Namespace
Classes: Error, NotFoundError
Instance Attribute Summary collapse
-
#stores ⇒ Object
An RDoc::RI::Store for each entry in the RI path.
-
#use_stdout ⇒ Object
Controls the user of the pager vs $stdout.
Class Method Summary collapse
-
.default_options ⇒ Object
Default options for ri.
-
.dump(data_path) ⇒ Object
Dump
data_path
using pp. -
.process_args(argv) ⇒ Object
Parses
argv
and returns a Hash of options. -
.run(argv = ARGV) ⇒ Object
Runs the ri command line executable using
argv
.
Instance Method Summary collapse
-
#add_also_in(out, also_in) ⇒ Object
Adds paths for undocumented classes
also_in
toout
. -
#add_class(out, name, classes) ⇒ Object
Adds a class header to
out
for classname
which is described inclasses
. -
#add_from(out, store) ⇒ Object
Adds "(from ...)" to
out
forstore
. -
#add_includes(out, includes) ⇒ Object
Adds
includes
toout
. -
#add_method_list(out, methods, name) ⇒ Object
Adds a list of
methods
toout
with a heading ofname
. -
#ancestors_of(klass) ⇒ Object
Returns ancestor classes of
klass
. -
#class_cache ⇒ Object
For RubyGems backwards compatibility.
-
#class_document(name, found, klasses, includes) ⇒ Object
Builds a RDoc::Markup::Document from
found
,klasess
andincludes
. -
#classes ⇒ Object
Hash mapping a known class or module to the stores it can be loaded from.
-
#classes_and_includes_for(name) ⇒ Object
Returns the stores wherin
name
is found along with the classes and includes that match it. -
#complete(name) ⇒ Object
Completes
name
based on the caches. -
#display(document) ⇒ Object
Converts
document
to text and writes it to the pager. -
#display_class(name) ⇒ Object
Outputs formatted RI data for class
name
. -
#display_method(name) ⇒ Object
Outputs formatted RI data for method
name
. -
#display_name(name) ⇒ Object
Outputs formatted RI data for the class or method
name
. -
#display_names(names) ⇒ Object
Displays each name in
name
. -
#expand_class(klass) ⇒ Object
Expands abbreviated klass
klass
into a fully-qualified class. -
#expand_name(name) ⇒ Object
Expands the class portion of
name
into a fully-qualified class. -
#filter_methods(found, name) ⇒ Object
Filters the methods in
found
trying to find a match forname
. -
#find_methods(name) ⇒ Object
Yields items matching
name
including the store they were found in, the class being searched for, the class they were found in (an ancestor) the types of methods to look up (from #method_type), and the method name being searched for. -
#formatter(io) ⇒ Object
Creates a new RDoc::Markup::Formatter.
-
#in_path?(file) ⇒ Boolean
Is
file
in ENV?. -
#initialize(initial_options = {}) ⇒ Driver
constructor
Creates a new driver using
initial_options
from ::process_args. -
#interactive ⇒ Object
Runs ri interactively using Readline if it is available.
-
#list_known_classes(names = []) ⇒ Object
Lists classes known to ri starting with
names
. -
#list_methods_matching(name) ⇒ Object
Returns an Array of methods matching
name
. -
#load_method(store, cache, klass, type, name) ⇒ Object
Loads RI data for method
name
onklass
fromstore
. -
#load_methods_matching(name) ⇒ Object
Returns an Array of RI data for methods matching
name
. -
#method_document(name, filtered) ⇒ Object
Builds a RDoc::Markup::Document from
found
,klasess
andincludes
. -
#method_type(selector) ⇒ Object
Returns the type of method (:both, :instance, :class) for
selector
. -
#name_regexp(name) ⇒ Object
Returns a regular expression for
name
that will match an RDoc::AnyMethod's name. -
#page ⇒ Object
Paginates output through a pager program.
-
#paging? ⇒ Boolean
Are we using a pager?.
-
#parse_name(name) ⇒ Object
Extracts the class, selector and method name parts from
name
like Foo::Bar#baz. -
#run ⇒ Object
Looks up and displays ri data according to the options given.
-
#setup_pager ⇒ Object
Sets up a pager program to pass output through.
Constructor Details
#initialize(initial_options = {}) ⇒ Driver
Creates a new driver using initial_options
from ::process_args
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# File 'lib/rdoc/ri/driver.rb', line 330 def initialize = {} @paging = false @classes = nil = self.class..update() @formatter_klass = [:formatter] require 'profile' if [:profile] @names = [:names] @list = [:list] @doc_dirs = [] @stores = [] RDoc::RI::Paths.each([:use_system], [:use_site], [:use_home], [:use_gems], *[:extra_doc_dirs]) do |path, type| @doc_dirs << path store = RDoc::RI::Store.new path, type store.load_cache @stores << store end @list_doc_dirs = [:list_doc_dirs] @interactive = [:interactive] @use_stdout = [:use_stdout] end |
Instance Attribute Details
#stores ⇒ Object
An RDoc::RI::Store for each entry in the RI path
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# File 'lib/rdoc/ri/driver.rb', line 66 def stores @stores end |
#use_stdout ⇒ Object
Controls the user of the pager vs $stdout
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# File 'lib/rdoc/ri/driver.rb', line 71 def use_stdout @use_stdout end |
Class Method Details
.default_options ⇒ Object
Default options for ri
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# File 'lib/rdoc/ri/driver.rb', line 76 def self. = {} [:use_stdout] = !$stdout.tty? [:width] = 72 [:interactive] = false [:use_cache] = true [:profile] = false # By default all standard paths are used. [:use_system] = true [:use_site] = true [:use_home] = true [:use_gems] = true [:extra_doc_dirs] = [] return end |
.dump(data_path) ⇒ Object
Dump data_path
using pp
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# File 'lib/rdoc/ri/driver.rb', line 97 def self.dump data_path require 'pp' open data_path, 'rb' do |io| pp Marshal.load(io.read) end end |
.process_args(argv) ⇒ Object
Parses argv
and returns a Hash of options
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# File 'lib/rdoc/ri/driver.rb', line 108 def self.process_args argv = opts = OptionParser.new do |opt| opt.accept File do |file,| File.readable?(file) and not File.directory?(file) and file end opt.program_name = File.basename $0 opt.version = RDoc::VERSION opt.release = nil opt.summary_indent = ' ' * 4 opt. = <<-EOT Usage: #{opt.program_name} [options] [names...] Where name can be: Class | Class::method | Class#method | Class.method | method All class names may be abbreviated to their minimum unambiguous form. If a name is ambiguous, all valid options will be listed. A '.' matches either class or instance methods, while #method matches only instance and ::method matches only class methods. For example: #{opt.program_name} Fil #{opt.program_name} File #{opt.program_name} File.new #{opt.program_name} zip Note that shell quoting or escaping may be required for method names containing punctuation: #{opt.program_name} 'Array.[]' #{opt.program_name} compact\\! To see the default directories ri will search, run: #{opt.program_name} --list-doc-dirs Specifying the --system, --site, --home, --gems or --doc-dir options will limit ri to searching only the specified directories. Options may also be set in the 'RI' environment variable. EOT opt.separator nil opt.separator "Options:" opt.separator nil formatters = RDoc::Markup.constants.grep(/^To[A-Z][a-z]+$/).sort formatters = formatters.sort.map do |formatter| formatter.to_s.sub('To', '').downcase end opt.on("--format=NAME", "-f", "Uses the selected formatter. The default", "formatter is bs for paged output and ansi", "otherwise. Valid formatters are:", formatters.join(' '), formatters) do |value| [:formatter] = RDoc::Markup.const_get "To#{value.capitalize}" end opt.separator nil opt.on("--no-pager", "-T", "Send output directly to stdout,", "rather than to a pager.") do [:use_stdout] = true end opt.separator nil opt.on("--width=WIDTH", "-w", OptionParser::DecimalInteger, "Set the width of the output.") do |value| [:width] = value end opt.separator nil opt.on("--interactive", "-i", "In interactive mode you can repeatedly", "look up methods with autocomplete.") do [:interactive] = true end opt.separator nil opt.on("--list", "-l", "List classes ri knows about.") do [:list] = true end opt.separator nil opt.on("--[no-]profile", "Run with the ruby profiler") do |value| [:profile] = value end opt.separator nil opt.separator "Data source options:" opt.separator nil opt.on("--list-doc-dirs", "List the directories from which ri will", "source documentation on stdout and exit.") do [:list_doc_dirs] = true end opt.separator nil opt.on("--doc-dir=DIRNAME", "-d", Array, "List of directories from which to source", "documentation in addition to the standard", "directories. May be repeated.") do |value| value.each do |dir| unless File.directory? dir then raise OptionParser::InvalidArgument, "#{dir} is not a directory" end [:extra_doc_dirs] << File.(dir) end end opt.separator nil opt.on("--no-standard-docs", "Do not include documentation from", "the Ruby standard library, site_lib,", "installed gems, or ~/.rdoc.", "Use with --doc-dir") do [:use_system] = false [:use_site] = false [:use_gems] = false [:use_home] = false end opt.separator nil opt.on("--[no-]system", "Include documentation from Ruby's standard", "library. Defaults to true.") do |value| [:use_system] = value end opt.separator nil opt.on("--[no-]site", "Include documentation from libraries", "installed in site_lib.", "Defaults to true.") do |value| [:use_site] = value end opt.separator nil opt.on("--[no-]gems", "Include documentation from RubyGems.", "Defaults to true.") do |value| [:use_gems] = value end opt.separator nil opt.on("--[no-]home", "Include documentation stored in ~/.rdoc.", "Defaults to true.") do |value| [:use_home] = value end opt.separator nil opt.separator "Debug options:" opt.separator nil opt.on("--dump=CACHE", File, "Dumps data from an ri cache or data file") do |value| [:dump_path] = value end end argv = ENV['RI'].to_s.split.concat argv opts.parse! argv [:names] = argv [:use_stdout] ||= !$stdout.tty? [:use_stdout] ||= [:interactive] [:width] ||= 72 rescue OptionParser::InvalidArgument, OptionParser::InvalidOption => e puts opts puts puts e exit 1 end |
.run(argv = ARGV) ⇒ Object
Runs the ri command line executable using argv
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# File 'lib/rdoc/ri/driver.rb', line 315 def self.run argv = ARGV = process_args argv if [:dump_path] then dump [:dump_path] return end ri = new ri.run end |
Instance Method Details
#add_also_in(out, also_in) ⇒ Object
Adds paths for undocumented classes also_in
to out
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# File 'lib/rdoc/ri/driver.rb', line 365 def add_also_in out, also_in return if also_in.empty? out << RDoc::Markup::Rule.new(1) out << RDoc::Markup::Paragraph.new("Also found in:") paths = RDoc::Markup::Verbatim.new also_in.each do |store| paths.parts.push store.friendly_path, "\n" end out << paths end |
#add_class(out, name, classes) ⇒ Object
Adds a class header to out
for class name
which is described in classes
.
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# File 'lib/rdoc/ri/driver.rb', line 382 def add_class out, name, classes heading = if classes.all? { |klass| klass.module? } then name else superclass = classes.map do |klass| klass.superclass unless klass.module? end.compact.shift || 'Object' superclass = superclass.full_name unless String === superclass "#{name} < #{superclass}" end out << RDoc::Markup::Heading.new(1, heading) out << RDoc::Markup::BlankLine.new end |
#add_from(out, store) ⇒ Object
Adds "(from ...)" to out
for store
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# File 'lib/rdoc/ri/driver.rb', line 402 def add_from out, store out << RDoc::Markup::Paragraph.new("(from #{store.friendly_path})") end |
#add_includes(out, includes) ⇒ Object
Adds includes
to out
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# File 'lib/rdoc/ri/driver.rb', line 409 def add_includes out, includes return if includes.empty? out << RDoc::Markup::Rule.new(1) out << RDoc::Markup::Heading.new(1, "Includes:") includes.each do |modules, store| if modules.length == 1 then include = modules.first name = include.name path = store.friendly_path out << RDoc::Markup::Paragraph.new("#{name} (from #{path})") if include.comment then out << RDoc::Markup::BlankLine.new out << include.comment end else out << RDoc::Markup::Paragraph.new("(from #{store.friendly_path})") wout, with = modules.partition { |incl| incl.comment.empty? } out << RDoc::Markup::BlankLine.new unless with.empty? with.each do |incl| out << RDoc::Markup::Paragraph.new(incl.name) out << RDoc::Markup::BlankLine.new out << incl.comment end unless wout.empty? then verb = RDoc::Markup::Verbatim.new wout.each do |incl| verb.push incl.name, "\n" end out << verb end end end end |
#add_method_list(out, methods, name) ⇒ Object
Adds a list of methods
to out
with a heading of name
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# File 'lib/rdoc/ri/driver.rb', line 455 def add_method_list out, methods, name return if methods.empty? out << RDoc::Markup::Heading.new(1, "#{name}:") out << RDoc::Markup::BlankLine.new if @use_stdout and !@interactive out.push(*methods.map do |method| RDoc::Markup::Verbatim.new method end) else out << RDoc::Markup::IndentedParagraph.new(2, methods.join(', ')) end out << RDoc::Markup::BlankLine.new end |
#ancestors_of(klass) ⇒ Object
Returns ancestor classes of klass
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# File 'lib/rdoc/ri/driver.rb', line 475 def ancestors_of klass ancestors = [] unexamined = [klass] seen = [] loop do break if unexamined.empty? current = unexamined.shift seen << current stores = classes[current] break unless stores and not stores.empty? klasses = stores.map do |store| store.ancestors[current] end.flatten.uniq klasses = klasses - seen ancestors.push(*klasses) unexamined.push(*klasses) end ancestors.reverse end |
#class_cache ⇒ Object
For RubyGems backwards compatibility
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# File 'lib/rdoc/ri/driver.rb', line 506 def class_cache # :nodoc: end |
#class_document(name, found, klasses, includes) ⇒ Object
Builds a RDoc::Markup::Document from found
, klasess
and includes
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# File 'lib/rdoc/ri/driver.rb', line 512 def class_document name, found, klasses, includes also_in = [] out = RDoc::Markup::Document.new add_class out, name, klasses add_includes out, includes found.each do |store, klass| comment = klass.comment # TODO the store's cache should always return an empty Array class_methods = store.class_methods[klass.full_name] || [] instance_methods = store.instance_methods[klass.full_name] || [] attributes = store.attributes[klass.full_name] || [] if comment.empty? and instance_methods.empty? and class_methods.empty? then also_in << store next end add_from out, store unless comment.empty? then out << RDoc::Markup::Rule.new(1) if comment.merged? then parts = comment.parts parts = parts.zip [RDoc::Markup::BlankLine.new] * parts.length parts.flatten! parts.pop out.push(*parts) else out << comment end end if class_methods or instance_methods or not klass.constants.empty? then out << RDoc::Markup::Rule.new(1) end unless klass.constants.empty? then out << RDoc::Markup::Heading.new(1, "Constants:") out << RDoc::Markup::BlankLine.new list = RDoc::Markup::List.new :NOTE constants = klass.constants.sort_by { |constant| constant.name } list.push(*constants.map do |constant| parts = constant.comment.parts if constant.comment parts << RDoc::Markup::Paragraph.new('[not documented]') if parts.empty? RDoc::Markup::ListItem.new(constant.name, *parts) end) out << list out << RDoc::Markup::BlankLine.new end add_method_list out, class_methods, 'Class methods' add_method_list out, instance_methods, 'Instance methods' add_method_list out, attributes, 'Attributes' end add_also_in out, also_in out end |
#classes ⇒ Object
Hash mapping a known class or module to the stores it can be loaded from
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# File 'lib/rdoc/ri/driver.rb', line 587 def classes return @classes if @classes @classes = {} @stores.each do |store| store.cache[:modules].each do |mod| # using default block causes searched-for modules to be added @classes[mod] ||= [] @classes[mod] << store end end @classes end |
#classes_and_includes_for(name) ⇒ Object
Returns the stores wherin name
is found along with the classes and includes that match it
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# File 'lib/rdoc/ri/driver.rb', line 607 def classes_and_includes_for name klasses = [] includes = [] found = @stores.map do |store| begin klass = store.load_class name klasses << klass includes << [klass.includes, store] if klass.includes [store, klass] rescue Errno::ENOENT end end.compact includes.reject! do |modules,| modules.empty? end [found, klasses, includes] end |
#complete(name) ⇒ Object
Completes name
based on the caches. For Readline
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# File 'lib/rdoc/ri/driver.rb', line 629 def complete name klasses = classes.keys completions = [] klass, selector, method = parse_name name # may need to include Foo when given Foo:: klass_name = method ? name : klass if name !~ /#|\./ then completions = klasses.grep(/^#{Regexp.escape klass_name}[^:]*$/) completions.concat klasses.grep(/^#{Regexp.escape name}[^:]*$/) if name =~ /::$/ completions << klass if classes.key? klass # to complete a method name elsif selector then completions << klass if classes.key? klass elsif classes.key? klass_name then completions << klass_name end if completions.include? klass and name =~ /#|\.|::/ then methods = list_methods_matching name if not methods.empty? then # remove Foo if given Foo:: and a method was found completions.delete klass elsif selector then # replace Foo with Foo:: as given completions.delete klass completions << "#{klass}#{selector}" end completions.push(*methods) end completions.sort.uniq end |
#display(document) ⇒ Object
Converts document
to text and writes it to the pager
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# File 'lib/rdoc/ri/driver.rb', line 671 def display document page do |io| text = document.accept formatter(io) io.write text end end |
#display_class(name) ⇒ Object
Outputs formatted RI data for class name
. Groups undocumented classes
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# File 'lib/rdoc/ri/driver.rb', line 682 def display_class name return if name =~ /#|\./ found, klasses, includes = classes_and_includes_for name return if found.empty? out = class_document name, found, klasses, includes display out end |
#display_method(name) ⇒ Object
Outputs formatted RI data for method name
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# File 'lib/rdoc/ri/driver.rb', line 697 def display_method name found = load_methods_matching name raise NotFoundError, name if found.empty? filtered = filter_methods found, name out = method_document name, filtered display out end |
#display_name(name) ⇒ Object
Outputs formatted RI data for the class or method name
.
Returns true if name
was found, false if it was not an alternative could be guessed, raises an error if name
couldn't be guessed.
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# File 'lib/rdoc/ri/driver.rb', line 715 def display_name name return true if display_class name display_method name if name =~ /::|#|\./ true rescue NotFoundError matches = list_methods_matching name if name =~ /::|#|\./ matches = classes.keys.grep(/^#{name}/) if matches.empty? raise if matches.empty? page do |io| io.puts "#{name} not found, maybe you meant:" io.puts io.puts matches.join("\n") end false end |
#display_names(names) ⇒ Object
Displays each name in name
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# File 'lib/rdoc/ri/driver.rb', line 739 def display_names names names.each do |name| name = name display_name name end end |
#expand_class(klass) ⇒ Object
Expands abbreviated klass klass
into a fully-qualified class. "Zl::Da" will be expanded to Zlib::DataError.
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# File 'lib/rdoc/ri/driver.rb', line 751 def klass klass.split('::').inject '' do |, klass_part| << '::' unless .empty? short = << klass_part subset = classes.keys.select do |klass_name| klass_name =~ /^#{}[^:]*$/ end abbrevs = Abbrev.abbrev subset = abbrevs[short] raise NotFoundError, short unless .dup end end |
#expand_name(name) ⇒ Object
Expands the class portion of name
into a fully-qualified class. See #expand_class.
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# File 'lib/rdoc/ri/driver.rb', line 774 def name klass, selector, method = parse_name name return [selector, method].join if klass.empty? "#{ klass}#{selector}#{method}" end |
#filter_methods(found, name) ⇒ Object
Filters the methods in found
trying to find a match for name
.
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# File 'lib/rdoc/ri/driver.rb', line 785 def filter_methods found, name regexp = name_regexp name filtered = found.find_all do |store, methods| methods.any? { |method| method.full_name =~ regexp } end return filtered unless filtered.empty? found end |
#find_methods(name) ⇒ Object
Yields items matching name
including the store they were found in, the class being searched for, the class they were found in (an ancestor) the types of methods to look up (from #method_type), and the method name being searched for
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# File 'lib/rdoc/ri/driver.rb', line 803 def find_methods name klass, selector, method = parse_name name types = method_type selector klasses = nil ambiguous = klass.empty? if ambiguous then klasses = classes.keys else klasses = ancestors_of klass klasses.unshift klass end methods = [] klasses.each do |ancestor| ancestors = classes[ancestor] next unless ancestors klass = ancestor if ambiguous ancestors.each do |store| methods << [store, klass, ancestor, types, method] end end methods = methods.sort_by do |_, k, a, _, m| [k, a, m].compact end methods.each do |item| yield(*item) # :yields: store, klass, ancestor, types, method end self end |
#formatter(io) ⇒ Object
Creates a new RDoc::Markup::Formatter. If a formatter is given with -f, use it. If we're outputting to a pager, use bs, otherwise ansi.
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# File 'lib/rdoc/ri/driver.rb', line 847 def formatter(io) if @formatter_klass then @formatter_klass.new elsif paging? or !io.tty? then RDoc::Markup::ToBs.new else RDoc::Markup::ToAnsi.new end end |
#in_path?(file) ⇒ Boolean
Is file
in ENV?
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# File 'lib/rdoc/ri/driver.rb', line 896 def in_path? file return true if file =~ %r%\A/% and File.exist? file ENV['PATH'].split(File::PATH_SEPARATOR).any? do |path| File.exist? File.join(path, file) end end |
#interactive ⇒ Object
Runs ri interactively using Readline if it is available.
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# File 'lib/rdoc/ri/driver.rb', line 860 def interactive puts "\nEnter the method name you want to look up." if defined? Readline then Readline.completion_proc = method :complete puts "You can use tab to autocomplete." end puts "Enter a blank line to exit.\n\n" loop do name = if defined? Readline then Readline.readline ">> " else print ">> " $stdin.gets end return if name.nil? or name.empty? name = name.strip begin display_name name rescue NotFoundError => e puts e. end end rescue Interrupt exit end |
#list_known_classes(names = []) ⇒ Object
Lists classes known to ri starting with names
. If names
is empty all known classes are shown.
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# File 'lib/rdoc/ri/driver.rb', line 908 def list_known_classes names = [] classes = [] stores.each do |store| classes << store.modules end classes = classes.flatten.uniq.sort unless names.empty? then filter = Regexp.union names.map { |name| /^#{name}/ } classes = classes.grep filter end page do |io| if paging? or io.tty? then if names.empty? then io.puts "Classes and Modules known to ri:" else io.puts "Classes and Modules starting with #{names.join ', '}:" end io.puts end io.puts classes.join("\n") end end |
#list_methods_matching(name) ⇒ Object
Returns an Array of methods matching name
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# File 'lib/rdoc/ri/driver.rb', line 940 def list_methods_matching name found = [] find_methods name do |store, klass, ancestor, types, method| if types == :instance or types == :both then methods = store.instance_methods[ancestor] if methods then matches = methods.grep(/^#{Regexp.escape method.to_s}/) matches = matches.map do |match| "#{klass}##{match}" end found.push(*matches) end end if types == :class or types == :both then methods = store.class_methods[ancestor] next unless methods matches = methods.grep(/^#{Regexp.escape method.to_s}/) matches = matches.map do |match| "#{klass}::#{match}" end found.push(*matches) end end found.uniq end |
#load_method(store, cache, klass, type, name) ⇒ Object
Loads RI data for method name
on klass
from store
. type
and cache
indicate if it is a class or instance method.
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# File 'lib/rdoc/ri/driver.rb', line 979 def load_method store, cache, klass, type, name methods = store.send(cache)[klass] return unless methods method = methods.find do |method_name| method_name == name end return unless method store.load_method klass, "#{type}#{method}" end |
#load_methods_matching(name) ⇒ Object
Returns an Array of RI data for methods matching name
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# File 'lib/rdoc/ri/driver.rb', line 996 def load_methods_matching name found = [] find_methods name do |store, klass, ancestor, types, method| methods = [] methods << load_method(store, :class_methods, ancestor, '::', method) if [:class, :both].include? types methods << load_method(store, :instance_methods, ancestor, '#', method) if [:instance, :both].include? types found << [store, methods.compact] end found.reject do |path, methods| methods.empty? end end |
#method_document(name, filtered) ⇒ Object
Builds a RDoc::Markup::Document from found
, klasess
and includes
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# File 'lib/rdoc/ri/driver.rb', line 1017 def method_document name, filtered out = RDoc::Markup::Document.new out << RDoc::Markup::Heading.new(1, name) out << RDoc::Markup::BlankLine.new filtered.each do |store, methods| methods.each do |method| out << RDoc::Markup::Paragraph.new("(from #{store.friendly_path})") unless name =~ /^#{Regexp.escape method.parent_name}/ then out << RDoc::Markup::Heading.new(3, "Implementation from #{method.parent_name}") end out << RDoc::Markup::Rule.new(1) if method.arglists then arglists = method.arglists.chomp.split "\n" arglists = arglists.map { |line| line + "\n" } out << RDoc::Markup::Verbatim.new(*arglists) out << RDoc::Markup::Rule.new(1) end out << RDoc::Markup::BlankLine.new out << method.comment out << RDoc::Markup::BlankLine.new end end out end |
#method_type(selector) ⇒ Object
Returns the type of method (:both, :instance, :class) for selector
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# File 'lib/rdoc/ri/driver.rb', line 1051 def method_type selector case selector when '.', nil then :both when '#' then :instance else :class end end |
#name_regexp(name) ⇒ Object
Returns a regular expression for name
that will match an RDoc::AnyMethod's name.
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# File 'lib/rdoc/ri/driver.rb', line 1063 def name_regexp name klass, type, name = parse_name name case type when '#', '::' then /^#{klass}#{type}#{Regexp.escape name}$/ else /^#{klass}(#|::)#{Regexp.escape name}$/ end end |
#page ⇒ Object
Paginates output through a pager program.
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# File 'lib/rdoc/ri/driver.rb', line 1077 def page if pager = setup_pager then begin yield pager ensure pager.close end else yield $stdout end rescue Errno::EPIPE ensure @paging = false end |
#paging? ⇒ Boolean
Are we using a pager?
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# File 'lib/rdoc/ri/driver.rb', line 1095 def paging? @paging end |
#parse_name(name) ⇒ Object
Extracts the class, selector and method name parts from name
like Foo::Bar#baz.
NOTE: Given Foo::Bar, Bar is considered a class even though it may be a
method
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# File 'lib/rdoc/ri/driver.rb', line 1106 def parse_name name parts = name.split(/(::|#|\.)/) if parts.length == 1 then if parts.first =~ /^[a-z]|^([%&*+\/<>^`|~-]|\+@|-@|<<|<=>?|===?|=>|=~|>>|\[\]=?|~@)$/ then type = '.' meth = parts.pop else type = nil meth = nil end elsif parts.length == 2 or parts.last =~ /::|#|\./ then type = parts.pop meth = nil elsif parts[-2] != '::' or parts.last !~ /^[A-Z]/ then meth = parts.pop type = parts.pop end klass = parts.join [klass, type, meth] end |
#run ⇒ Object
Looks up and displays ri data according to the options given.
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# File 'lib/rdoc/ri/driver.rb', line 1133 def run if @list_doc_dirs then puts @doc_dirs elsif @list then list_known_classes @names elsif @interactive or @names.empty? then interactive else display_names @names end rescue NotFoundError => e abort e. end |
#setup_pager ⇒ Object
Sets up a pager program to pass output through. Tries the RI_PAGER and PAGER environment variables followed by pager, less then more.
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# File 'lib/rdoc/ri/driver.rb', line 1151 def setup_pager return if @use_stdout pagers = [ENV['RI_PAGER'], ENV['PAGER'], 'pager', 'less', 'more'] pagers.compact.uniq.each do |pager| next unless pager pager_cmd = pager.split.first next unless in_path? pager_cmd io = IO.popen(pager, 'w') rescue next next if $? and $?.exited? # pager didn't work @paging = true return io end @use_stdout = true nil end |