diff options
Diffstat (limited to 'ruby_1_8_6/lib/irb/completion.rb')
| -rw-r--r-- | ruby_1_8_6/lib/irb/completion.rb | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/ruby_1_8_6/lib/irb/completion.rb b/ruby_1_8_6/lib/irb/completion.rb new file mode 100644 index 0000000000..000658e2a3 --- /dev/null +++ b/ruby_1_8_6/lib/irb/completion.rb @@ -0,0 +1,205 @@ +# +# irb/completor.rb - +# $Release Version: 0.9$ +# $Revision$ +# $Date$ +# by Keiju ISHITSUKA(keiju@ishitsuka.com) +# From Original Idea of shugo@ruby-lang.org +# + +require "readline" + +module IRB + module InputCompletor + + @RCS_ID='-$Id$-' + + ReservedWords = [ + "BEGIN", "END", + "alias", "and", + "begin", "break", + "case", "class", + "def", "defined", "do", + "else", "elsif", "end", "ensure", + "false", "for", + "if", "in", + "module", + "next", "nil", "not", + "or", + "redo", "rescue", "retry", "return", + "self", "super", + "then", "true", + "undef", "unless", "until", + "when", "while", + "yield", + ] + + CompletionProc = proc { |input| + bind = IRB.conf[:MAIN_CONTEXT].workspace.binding + +# puts "input: #{input}" + + case input + when /^(\/[^\/]*\/)\.([^.]*)$/ + # Regexp + receiver = $1 + message = Regexp.quote($2) + + candidates = Regexp.instance_methods(true) + select_message(receiver, message, candidates) + + when /^([^\]]*\])\.([^.]*)$/ + # Array + receiver = $1 + message = Regexp.quote($2) + + candidates = Array.instance_methods(true) + select_message(receiver, message, candidates) + + when /^([^\}]*\})\.([^.]*)$/ + # Proc or Hash + receiver = $1 + message = Regexp.quote($2) + + candidates = Proc.instance_methods(true) | Hash.instance_methods(true) + select_message(receiver, message, candidates) + + when /^(:[^:.]*)$/ + # Symbol + if Symbol.respond_to?(:all_symbols) + sym = $1 + candidates = Symbol.all_symbols.collect{|s| ":" + s.id2name} + candidates.grep(/^#{sym}/) + else + [] + end + + when /^::([A-Z][^:\.\(]*)$/ + # Absolute Constant or class methods + receiver = $1 + candidates = Object.constants + candidates.grep(/^#{receiver}/).collect{|e| "::" + e} + + when /^(((::)?[A-Z][^:.\(]*)+)::?([^:.]*)$/ + # Constant or class methods + receiver = $1 + message = Regexp.quote($4) + begin + candidates = eval("#{receiver}.constants | #{receiver}.methods", bind) + rescue Exception + candidates = [] + end + candidates.grep(/^#{message}/).collect{|e| receiver + "::" + e} + + when /^(:[^:.]+)\.([^.]*)$/ + # Symbol + receiver = $1 + message = Regexp.quote($2) + + candidates = Symbol.instance_methods(true) + select_message(receiver, message, candidates) + + when /^(-?(0[dbo])?[0-9_]+(\.[0-9_]+)?([eE]-?[0-9]+)?)\.([^.]*)$/ + # Numeric + receiver = $1 + message = Regexp.quote($5) + + begin + candidates = eval(receiver, bind).methods + rescue Exception + candidates = [] + end + select_message(receiver, message, candidates) + + when /^(-?0x[0-9a-fA-F_]+)\.([^.]*)$/ + # Numeric(0xFFFF) + receiver = $1 + message = Regexp.quote($2) + + begin + candidates = eval(receiver, bind).methods + rescue Exception + candidates = [] + end + select_message(receiver, message, candidates) + + when /^(\$[^.]*)$/ + candidates = global_variables.grep(Regexp.new(Regexp.quote($1))) + +# when /^(\$?(\.?[^.]+)+)\.([^.]*)$/ + when /^((\.?[^.]+)+)\.([^.]*)$/ + # variable + receiver = $1 + message = Regexp.quote($3) + + gv = eval("global_variables", bind) + lv = eval("local_variables", bind) + cv = eval("self.class.constants", bind) + + if (gv | lv | cv).include?(receiver) + # foo.func and foo is local var. + candidates = eval("#{receiver}.methods", bind) + elsif /^[A-Z]/ =~ receiver and /\./ !~ receiver + # Foo::Bar.func + begin + candidates = eval("#{receiver}.methods", bind) + rescue Exception + candidates = [] + end + else + # func1.func2 + candidates = [] + ObjectSpace.each_object(Module){|m| + begin + name = m.name + rescue Exception + name = "" + end + next if name != "IRB::Context" and + /^(IRB|SLex|RubyLex|RubyToken)/ =~ name + candidates.concat m.instance_methods(false) + } + candidates.sort! + candidates.uniq! + end + select_message(receiver, message, candidates) + + when /^\.([^.]*)$/ + # unknown(maybe String) + + receiver = "" + message = Regexp.quote($1) + + candidates = String.instance_methods(true) + select_message(receiver, message, candidates) + + else + candidates = eval("methods | private_methods | local_variables | self.class.constants", bind) + + (candidates|ReservedWords).grep(/^#{Regexp.quote(input)}/) + end + } + + Operators = ["%", "&", "*", "**", "+", "-", "/", + "<", "<<", "<=", "<=>", "==", "===", "=~", ">", ">=", ">>", + "[]", "[]=", "^",] + + def self.select_message(receiver, message, candidates) + candidates.grep(/^#{message}/).collect do |e| + case e + when /^[a-zA-Z_]/ + receiver + "." + e + when /^[0-9]/ + when *Operators + #receiver + " " + e + end + end + end + end +end + +if Readline.respond_to?("basic_word_break_characters=") + Readline.basic_word_break_characters= " \t\n\"\\'`><=;|&{(" +end +Readline.completion_append_character = nil +Readline.completion_proc = IRB::InputCompletor::CompletionProc |