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Revert "Revert "Merge pull request #678 from jasonLaster/tabcomplete""

This reverts commit 1234c90085.

Conflicts:

	lib/pry/completion.rb
	lib/pry/default_commands/cd.rb
	lib/pry/default_commands/input_and_output.rb
	test/test_completion.rb

Conflicts:

	test/test_completion.rb
This commit is contained in:
Jason Laster 2012-08-12 00:38:32 -04:00
parent 1af4207c63
commit f51fca89dc
5 changed files with 344 additions and 122 deletions

View file

@ -20,57 +20,9 @@ class Pry
BANNER
def process
# Extract command arguments. Delete blank arguments like " ", but
# don't delete empty strings like "".
path = arg_string.split(/\//).delete_if { |a| a =~ /\A\s+\z/ }
stack = _pry_.binding_stack.dup
old_stack = state.old_stack || []
# Special case when we only get a single "/", return to root.
if path.empty?
state.old_stack = stack.dup unless old_stack.empty?
stack = [stack.first]
end
path.each_with_index do |context, i|
begin
case context.chomp
when ""
state.old_stack = stack.dup
stack = [stack.first]
when "::"
state.old_stack = stack.dup
stack.push(TOPLEVEL_BINDING)
when "."
next
when ".."
unless stack.size == 1
# Don't rewrite old_stack if we're in complex expression
# (e.g.: `cd 1/2/3/../4).
state.old_stack = stack.dup if path.first == ".."
stack.pop
end
when "-"
unless old_stack.empty?
# Interchange current stack and old stack with each other.
stack, state.old_stack = state.old_stack, stack
end
else
state.old_stack = stack.dup if i == 0
stack.push(Pry.binding_for(stack.last.eval(context)))
end
rescue RescuableException => e
# Restore old stack to its initial values.
state.old_stack = old_stack
output.puts "Bad object path: #{arg_string.chomp}. Failed trying to resolve: #{context}"
output.puts e.inspect
return
end
end
_pry_.binding_stack = stack
stack, old_stack = context_from_object_path(arg_string, _pry_, state.old_stack||[])
state.old_stack = old_stack
_pry_.binding_stack = stack unless stack.nil?
end
end
end

View file

@ -41,36 +41,50 @@ class Pry
# Return a new completion proc for use by Readline.
# @param [Binding] target The current binding context.
# @param [Array<String>] commands The array of Pry commands.
def self.build_completion_proc(target, commands=[""])
def self.build_completion_proc(target, pry=nil, commands=[""])
proc do |input|
# if there are multiple contexts e.g. cd 1/2/3
# get new target for 1/2 and find candidates for 3
path, input = build_path(input)
unless path.call.empty?
target, _ = Pry::Helpers::BaseHelpers.context_from_object_path(path.call, pry)
target = target.last
end
begin
bind = target
case input
# Complete stdlib symbols
when /^(\/[^\/]*\/)\.([^.]*)$/
# Regexp
receiver = $1
message = Regexp.quote($2)
candidates = Regexp.instance_methods.collect{|m| m.to_s}
select_message(receiver, message, candidates)
candidates = Regexp.instance_methods.collect(&:to_s)
select_message(path, receiver, message, candidates)
when /^([^\]]*\])\.([^.]*)$/
# Array
receiver = $1
message = Regexp.quote($2)
candidates = Array.instance_methods.collect{|m| m.to_s}
select_message(receiver, message, candidates)
candidates = Array.instance_methods.collect(&:to_s)
select_message(path, receiver, message, candidates)
when /^([^\}]*\})\.([^.]*)$/
# Proc or Hash
receiver = $1
message = Regexp.quote($2)
candidates = Proc.instance_methods.collect{|m| m.to_s}
candidates |= Hash.instance_methods.collect{|m| m.to_s}
select_message(receiver, message, candidates)
candidates = Proc.instance_methods.collect(&:to_s)
candidates |= Hash.instance_methods.collect(&:to_s)
select_message(path, receiver, message, candidates)
when /^(:[^:.]*)$/
# Symbol
@ -86,16 +100,32 @@ class Pry
when /^::([A-Z][^:\.\(]*)$/
# Absolute Constant or class methods
receiver = $1
candidates = Object.constants.collect{|m| m.to_s}
candidates = Object.constants.collect(&:to_s)
candidates.grep(/^#{receiver}/).collect{|e| "::" + e}
when /^([A-Z].*)::([^:.]*)$/
# Complete target symbols
when /^([A-Z][A-Za-z0-9]*)$/
# Constant
message = $1
begin
context = target.eval("self")
context = context.class unless context.respond_to? :constants
candidates = context.constants.collect(&:to_s)
rescue
candidates = []
end
candidates = candidates.grep(/^#{message}/).collect(&path)
when /^([A-Z].*)::([^:.]*)$/
# Constant or class methods
receiver = $1
message = Regexp.quote($2)
begin
candidates = eval("#{receiver}.constants.collect{|m| m.to_s}", bind)
candidates |= eval("#{receiver}.methods.collect{|m| m.to_s}", bind)
candidates = eval("#{receiver}.constants.collect(&:to_s)", bind)
candidates |= eval("#{receiver}.methods.collect(&:to_s)", bind)
rescue RescuableException
candidates = []
end
@ -106,8 +136,8 @@ class Pry
receiver = $1
message = Regexp.quote($2)
candidates = Symbol.instance_methods.collect{|m| m.to_s}
select_message(receiver, message, candidates)
candidates = Symbol.instance_methods.collect(&:to_s)
select_message(path, receiver, message, candidates)
when /^(-?(0[dbo])?[0-9_]+(\.[0-9_]+)?([eE]-?[0-9]+)?)\.([^.]*)$/
# Numeric
@ -115,42 +145,43 @@ class Pry
message = Regexp.quote($5)
begin
candidates = eval(receiver, bind).methods.collect{|m| m.to_s}
candidates = eval(receiver, bind).methods.collect(&:to_s)
rescue RescuableException
candidates = []
end
select_message(receiver, message, candidates)
select_message(path, receiver, message, candidates)
when /^(-?0x[0-9a-fA-F_]+)\.([^.]*)$/
when /^(-?0x[0-9a-fA-F_]+)\.([^.]*)$/#
# Numeric(0xFFFF)
receiver = $1
message = Regexp.quote($2)
begin
candidates = eval(receiver, bind).methods.collect{|m| m.to_s}
candidates = eval(receiver, bind).methods.collect(&:to_s)
rescue RescuableException
candidates = []
end
select_message(receiver, message, candidates)
select_message(path, receiver, message, candidates)
when /^(\$[^.]*)$/
# Global variables
regmessage = Regexp.new(Regexp.quote($1))
candidates = global_variables.collect{|m| m.to_s}.grep(regmessage)
candidates = global_variables.collect(&:to_s).grep(regmessage)
when /^([^."].*)\.([^.]*)$/
# variable
when /^([^."].*)\.([^.]*)$/
# Variable
receiver = $1
message = Regexp.quote($2)
gv = eval("global_variables", bind).collect{|m| m.to_s}
lv = eval("local_variables", bind).collect{|m| m.to_s}
cv = eval("self.class.constants", bind).collect{|m| m.to_s}
gv = eval("global_variables", bind).collect(&:to_s)
lv = eval("local_variables", bind).collect(&:to_s)
cv = eval("self.class.constants", bind).collect(&:to_s)
if (gv | lv | cv).include?(receiver) or /^[A-Z]/ =~ receiver && /\./ !~ receiver
# foo.func and foo is local var. OR
# Foo::Bar.func
begin
candidates = eval("#{receiver}.methods", bind).collect{|m| m.to_s}
candidates = eval("#{receiver}.methods", bind).collect(&:to_s)
rescue RescuableException
candidates = []
end
@ -169,35 +200,35 @@ class Pry
# jruby doesn't always provide #instance_methods() on each
# object.
if m.respond_to?(:instance_methods)
candidates.concat m.instance_methods(false).collect{|x| x.to_s}
candidates.concat m.instance_methods(false).collect(&:to_s)
end
}
candidates.sort!
candidates.uniq!
end
select_message(receiver, message, candidates)
select_message(path, receiver, message, candidates)
when /^\.([^.]*)$/
# unknown(maybe String)
# Unknown(maybe String)
receiver = ""
message = Regexp.quote($1)
candidates = String.instance_methods(true).collect{|m| m.to_s}
select_message(receiver, message, candidates)
candidates = String.instance_methods(true).collect(&:to_s)
select_message(path, receiver, message, candidates)
else
candidates = eval(
"methods | private_methods | local_variables | " \
"self.class.constants | instance_variables",
bind
).collect{|m| m.to_s}
).collect(&:to_s)
if eval("respond_to?(:class_variables)", bind)
candidates += eval("class_variables", bind).collect { |m| m.to_s }
candidates += eval("class_variables", bind).collect(&:to_s)
end
(candidates|ReservedWords|commands).grep(/^#{Regexp.quote(input)}/)
candidates = (candidates|ReservedWords|commands).grep(/^#{Regexp.quote(input)}/)
candidates.collect(&path)
end
rescue RescuableException
[]
@ -205,17 +236,38 @@ class Pry
end
end
def self.select_message(receiver, message, candidates)
def self.select_message(path, 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
case e
when /^[a-zA-Z_]/
path.call(receiver + "." + e)
when /^[0-9]/
when *Operators
#receiver + " " + e
end
end
end
# build_path seperates the input into two parts: path and input.
# input is the partial string that should be completed
# path is a proc that takes an input and builds a full path.
def self.build_path(input)
# check to see if the input is a regex
return proc {|input| input.to_s }, input if input[/\/\./]
trailing_slash = input.end_with?('/')
contexts = input.chomp('/').split(/\//)
input = contexts[-1]
path = proc do |input|
p = contexts[0..-2].push(input).join('/')
p += '/' if trailing_slash && !input.nil?
p
end
return path, input
end
end
end

View file

@ -70,7 +70,7 @@ class Pry
end
def use_ansi_codes?
windows_ansi? || ENV['TERM'] && ENV['TERM'] != "dumb"
windows_ansi? || ENV['TERM'] && ENV['TERM'] != "dumb"
end
def colorize_code(code)
@ -123,16 +123,16 @@ class Pry
# simple_pager. Also do not page if Pry.pager is falsey
def stagger_output(text, out = nil)
out ||= case
when respond_to?(:output)
# Mixin.
output
when Pry.respond_to?(:output)
# Parent.
Pry.output
else
# Sys.
$stdout
end
when respond_to?(:output)
# Mixin.
output
when Pry.respond_to?(:output)
# Parent.
Pry.output
else
# Sys.
$stdout
end
if text.lines.count < Pry::Pager.page_size || !Pry.pager
out.puts text
@ -143,6 +143,67 @@ class Pry
Pry::Pager.page(text, :simple)
rescue Errno::EPIPE
end
# @param [String] arg_string The object path expressed as a string.
# @param [Pry] _pry_ The relevant Pry instance.
# @param [Array<Binding>] old_stack The state of the old binding stack
# @return [Array<Array<Binding>, Array<Binding>>] An array
# containing two elements: The new `binding_stack` and the old `binding_stack`.
def context_from_object_path(arg_string, _pry_=nil, old_stack=[])
# Extract command arguments. Delete blank arguments like " ", but
# don't delete empty strings like "".
path = arg_string.split(/\//).delete_if { |a| a =~ /\A\s+\z/ }
stack = _pry_.binding_stack.dup
state_old_stack = old_stack
# Special case when we only get a single "/", return to root.
if path.empty?
state_old_stack = stack.dup unless old_stack.empty?
stack = [stack.first]
end
path.each_with_index do |context, i|
begin
case context.chomp
when ""
state_old_stack = stack.dup
stack = [stack.first]
when "::"
state_old_stack = stack.dup
stack.push(TOPLEVEL_BINDING)
when "."
next
when ".."
unless stack.size == 1
# Don't rewrite old_stack if we're in complex expression
# (e.g.: `cd 1/2/3/../4).
state_old_stack = stack.dup if path.first == ".."
stack.pop
end
when "-"
unless old_stack.empty?
# Interchange current stack and old stack with each other.
stack, state_old_stack = state_old_stack, stack
end
else
state_old_stack = stack.dup if i == 0
stack.push(Pry.binding_for(stack.last.eval(context)))
end
rescue RescuableException => e
# Restore old stack to its initial values.
state_old_stack = old_stack
output.puts "Bad object path: #{arg_string.chomp}. Failed trying to resolve: #{context}"
output.puts e.inspect
return nil, state_old_stack
end
end
return stack, state_old_stack
end
end
end
end

View file

@ -360,7 +360,7 @@ class Pry
@indent.reset if eval_string.empty?
current_prompt = select_prompt(eval_string, target)
completion_proc = Pry::InputCompleter.build_completion_proc(target,
completion_proc = Pry::InputCompleter.build_completion_proc(target, self,
instance_eval(&custom_completions))

View file

@ -1,5 +1,16 @@
require 'helper'
def new_completer(bind, pry=nil)
Pry::InputCompleter.build_completion_proc(Pry.binding_for(bind), pry)
end
def completer_test(bind, pry=nil, assert_flag=true)
completer = new_completer(bind, pry)
test = proc {|symbol| completer.call(symbol[0..-2]).include?(symbol).should == assert_flag}
return proc {|*symbols| symbols.each(&test) }
end
describe Pry::InputCompleter do
before do
@ -33,30 +44,176 @@ describe Pry::InputCompleter do
it 'should complete instance variables' do
object = Object.new
# set variables in appropriate scope
object.instance_variable_set(:'@name', 'Pry')
object.class.send(:class_variable_set, :'@@number', 10)
object.instance_variables.map { |v| v.to_sym } \
.include?(:'@name').should == true
# check to see if variables are in scope
object.instance_variables.
map { |v| v.to_sym }.
include?(:'@name').should == true
object.class.class_variables.map { |v| v.to_sym } \
.include?(:'@@number').should == true
completer = Pry::InputCompleter.build_completion_proc(
Pry.binding_for(object)
)
object.class.class_variables.
map { |v| v.to_sym }.
include?(:'@@number').should == true
# Complete instance variables.
completer.call('@na').include?('@name').should == true
completer.call('@name.down').include?('@name.downcase').should == true
b = Pry.binding_for(object)
completer_test(b).call('@name', '@name.downcase')
# Complete class variables.
completer = Pry::InputCompleter.build_completion_proc(
Pry.binding_for(object.class)
)
b = Pry.binding_for(object.class)
completer_test(b).call('@@number', '@@number.class')
completer.call('@@nu').include?('@@number').should == true
completer.call('@@number.cl').include?('@@number.class').should == true
end
it 'should complete for stdlib symbols' do
o = Object.new
# Regexp
completer_test(o).call('/foo/.extend')
# Array
completer_test(o).call('[1].push')
# Hash
completer_test(o).call('{"a" => "b"}.keys')
# Proc
completer_test(o).call('{2}.call')
# Symbol
completer_test(o).call(':symbol.to_s')
# Absolute Constant
completer_test(o).call('::IndexError')
end
it 'should complete for target symbols' do
o = Object.new
# Constant
module Mod
Con = 'Constant'
module Mod2
end
end
completer_test(Mod).call('Con')
# Constants or Class Methods
completer_test(o).call('Mod::Con')
# Symbol
foo = :symbol
completer_test(o).call(':symbol')
# Variables
class << o
attr_accessor :foo
end
o.foo = 'bar'
completer_test(binding).call('o.foo')
# trailing slash
new_completer(Mod).call('Mod2/').include?('Mod2/').should == true
end
it 'should complete for arbitrary scopes' do
module Bar
@barvar = :bar
end
module Baz
@bar = Bar
@bazvar = :baz
Con = :constant
end
pry = Pry.new()
stack = pry.binding_stack
stack.push(Pry.binding_for(Baz))
stack.push(Pry.binding_for(Bar))
b = Pry.binding_for(Bar)
completer_test(b, pry).call("../@bazvar")
completer_test(b, pry).call('/Con')
end
it 'should complete for stdlib symbols' do
o = Object.new
# Regexp
completer_test(o).call('/foo/.extend')
# Array
completer_test(o).call('[1].push')
# Hash
completer_test(o).call('{"a" => "b"}.keys')
# Proc
completer_test(o).call('{2}.call')
# Symbol
completer_test(o).call(':symbol.to_s')
# Absolute Constant
completer_test(o).call('::IndexError')
end
it 'should complete for target symbols' do
o = Object.new
# Constant
module Mod
Con = 'Constant'
module Mod2
end
end
completer_test(Mod).call('Con')
# Constants or Class Methods
completer_test(o).call('Mod::Con')
# Symbol
foo = :symbol
completer_test(o).call(':symbol')
# Variables
class << o
attr_accessor :foo
end
o.foo = 'bar'
completer_test(binding).call('o.foo')
# trailing slash
new_completer(Mod).call('Mod2/').include?('Mod2/').should == true
end
it 'should complete for arbitrary scopes' do
module Bar
@barvar = :bar
end
module Baz
@bar = Bar
@bazvar = :baz
Con = :constant
end
pry = Pry.new()
stack = pry.binding_stack
stack.push(Pry.binding_for(Baz))
stack.push(Pry.binding_for(Bar))
b = Pry.binding_for(Bar)
completer_test(b, pry).call("../@bazvar")
completer_test(b, pry).call('/Con')
end
end