diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/irb/input-method.rb | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/lib/irb/input-method.rb b/lib/irb/input-method.rb index 1854567a2d..1e4132ca6f 100644 --- a/lib/irb/input-method.rb +++ b/lib/irb/input-method.rb @@ -14,6 +14,7 @@ require_relative 'magic-file' require_relative 'completion' require 'io/console' require 'reline' +require 'rdoc' module IRB STDIN_FILE_NAME = "(line)" # :nodoc: @@ -308,6 +309,46 @@ module IRB @auto_indent_proc = block end + SHOW_DOC_DIALOG = ->() { + begin + require 'rdoc' + rescue LoadError + return nil + end + if just_cursor_moving and completion_journey_data.nil? + return nil + end + cursor_pos_to_render, result, pointer = context.pop(3) + return nil if result.nil? or pointer.nil? + name = result[pointer] + + driver = RDoc::RI::Driver.new + name = driver.expand_name(name) + doc = nil + used_for_class = false + if not name =~ /#|\./ + found, klasses, includes, extends = driver.classes_and_includes_and_extends_for(name) + if not found.empty? + doc = driver.class_document(name, found, klasses, includes, extends) + used_for_class = true + end + end + unless used_for_class + doc = RDoc::Markup::Document.new + begin + driver.add_method(doc, name) + rescue RDoc::RI::Driver::NotFoundError + doc = nil + end + end + return nil if doc.nil? + formatter = RDoc::Markup::ToAnsi.new + formatter.width = 40 + str = doc.accept(formatter) + + [Reline::CursorPos.new(cursor_pos_to_render.x + 40, cursor_pos_to_render.y + pointer), str.split("\n"), nil, '49'] + } + # Reads the next line from this input method. # # See IO#gets for more information. @@ -316,6 +357,7 @@ module IRB Reline.output = @stdout Reline.prompt_proc = @prompt_proc Reline.auto_indent_proc = @auto_indent_proc if @auto_indent_proc + Reline.add_dialog_proc(:show_doc, SHOW_DOC_DIALOG, Reline::DEFAULT_DIALOG_CONTEXT) if l = readmultiline(@prompt, false, &@check_termination_proc) HISTORY.push(l) if !l.empty? @line[@line_no += 1] = l + "\n" |