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pry--pry/lib/pry/commands/show_doc.rb
Kyrylo Silin 256f35422a Prettify command descriptions, switches and stuff
Wrap command descriptions to 80 characters. Convert some string options
to symbols (where possible). Align options in code. Remove dots in the
end of switch descriptions.

Signed-off-by: Kyrylo Silin <kyrylosilin@gmail.com>
2013-01-09 22:23:19 +02:00

78 lines
2.4 KiB
Ruby

require 'pry/commands/show_info'
class Pry
class Command::ShowDoc < Command::ShowInfo
include Pry::Helpers::DocumentationHelpers
match 'show-doc'
group 'Introspection'
description 'Show the documentation for a method or class.'
banner <<-BANNER
Usage: show-doc [OPTIONS] [METH]
Aliases: ?
Show the documentation for a method or class. Tries instance methods first and
then methods by default.
show-doc hi_method # docs for hi_method
show-doc Pry # for Pry class
show-doc Pry -a # for all definitions of Pry class (all monkey patches)
BANNER
# The docs for code_object prepared for display.
def content_for(code_object)
Code.new(render_doc_markup_for(code_object),
start_line_for(code_object), :text).
with_line_numbers(use_line_numbers?).to_s
end
# process the markup (if necessary) and apply colors
def render_doc_markup_for(code_object)
docs = docs_for(code_object)
if code_object.command?
# command '--help' shouldn't use markup highlighting
docs
else
process_comment_markup(docs)
end
end
# Return docs for the code_object, adjusting for whether the code_object
# has yard docs available, in which case it returns those.
# (note we only have to check yard docs for modules since they can
# have multiple docs, but methods can only be doc'd once so we
# dont need to check them)
def docs_for(code_object)
if code_object.module_with_yard_docs?
# yard docs
code_object.yard_doc
else
# normal docs (i.e comments above method/module/command)
code_object.doc
end
end
# Which sections to include in the 'header', can toggle: :owner,
# :signature and visibility.
def header_options
super.merge :signature => true
end
# figure out start line of docs by back-calculating based on
# number of lines in the comment and the start line of the code_object
# @return [Fixnum] start line of docs
def start_line_for(code_object)
if code_object.command? || opts.present?(:'base-one')
1
else
code_object.source_line.nil? ? 1 :
(code_object.source_line - code_object.doc.lines.count)
end
end
end
Pry::Commands.add_command(Pry::Command::ShowDoc)
Pry::Commands.alias_command '?', 'show-doc'
end