add support tab-completing arbitrarily long paths
This commit is contained in:
Jason Laster
parent
fd486641fe
commit
3841563fb2
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@ -43,34 +43,48 @@ class Pry
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# @param [Array<String>] commands The array of Pry commands.
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def self.build_completion_proc(target, pry=nil, commands=[""])
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proc do |input|
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# if there are multiple contexts e.g. cd 1/2/3
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# get new target for 1/2 and find candidates for 3
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path, input = build_path(input)
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unless path.call.empty?
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target, _ = Pry::Helpers::BaseHelpers.context_from_object_path(path.call, pry)
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target = target.last
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end
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begin
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bind = target
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case input
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# Complete stdlib symbols
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when /^(\/[^\/]*\/)\.([^.]*)$/
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# Regexp
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receiver = $1
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message = Regexp.quote($2)
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candidates = Regexp.instance_methods.collect{|m| m.to_s}
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select_message(receiver, message, candidates)
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candidates = Regexp.instance_methods.collect(&:to_s)
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select_message(path, receiver, message, candidates)
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when /^([^\]]*\])\.([^.]*)$/
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# Array
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receiver = $1
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message = Regexp.quote($2)
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candidates = Array.instance_methods.collect{|m| m.to_s}
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select_message(receiver, message, candidates)
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candidates = Array.instance_methods.collect(&:to_s)
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select_message(path, receiver, message, candidates)
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when /^([^\}]*\})\.([^.]*)$/
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# Proc or Hash
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receiver = $1
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message = Regexp.quote($2)
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candidates = Proc.instance_methods.collect{|m| m.to_s}
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candidates |= Hash.instance_methods.collect{|m| m.to_s}
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select_message(receiver, message, candidates)
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candidates = Proc.instance_methods.collect(&:to_s)
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candidates |= Hash.instance_methods.collect(&:to_s)
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select_message(path, receiver, message, candidates)
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when /^(:[^:.]*)$/
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# Symbol
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@ -86,16 +100,25 @@ class Pry
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when /^::([A-Z][^:\.\(]*)$/
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# Absolute Constant or class methods
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receiver = $1
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candidates = Object.constants.collect{|m| m.to_s}
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candidates = Object.constants.collect(&:to_s)
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candidates.grep(/^#{receiver}/).collect{|e| "::" + e}
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when /^([A-Z].*)::([^:.]*)$/
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# Complete target symbols
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when /^([A-Z][A-Za-z0-9]*)$/
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# Constant
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message = $1
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candidates = target.eval("self.class.constants").collect(&:to_s)
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candidates.grep(/^#{message}/).collect(&path)
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when /^([A-Z].*)::([^:.]*)$/
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# Constant or class methods
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receiver = $1
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message = Regexp.quote($2)
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begin
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candidates = eval("#{receiver}.constants.collect{|m| m.to_s}", bind)
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candidates |= eval("#{receiver}.methods.collect{|m| m.to_s}", bind)
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candidates = eval("#{receiver}.constants.collect(&:to_s)", bind)
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candidates |= eval("#{receiver}.methods.collect(&:to_s)", bind)
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rescue RescuableException
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candidates = []
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end
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@ -106,8 +129,8 @@ class Pry
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receiver = $1
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message = Regexp.quote($2)
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candidates = Symbol.instance_methods.collect{|m| m.to_s}
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select_message(receiver, message, candidates)
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candidates = Symbol.instance_methods.collect(&:to_s)
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select_message(path, receiver, message, candidates)
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when /^(-?(0[dbo])?[0-9_]+(\.[0-9_]+)?([eE]-?[0-9]+)?)\.([^.]*)$/
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# Numeric
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@ -115,42 +138,43 @@ class Pry
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message = Regexp.quote($5)
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begin
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candidates = eval(receiver, bind).methods.collect{|m| m.to_s}
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candidates = eval(receiver, bind).methods.collect(&:to_s)
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rescue RescuableException
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candidates = []
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end
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select_message(receiver, message, candidates)
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select_message(path, receiver, message, candidates)
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when /^(-?0x[0-9a-fA-F_]+)\.([^.]*)$/
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when /^(-?0x[0-9a-fA-F_]+)\.([^.]*)$/#
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# Numeric(0xFFFF)
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receiver = $1
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message = Regexp.quote($2)
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begin
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candidates = eval(receiver, bind).methods.collect{|m| m.to_s}
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candidates = eval(receiver, bind).methods.collect(&:to_s)
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rescue RescuableException
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candidates = []
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end
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select_message(receiver, message, candidates)
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select_message(path, receiver, message, candidates)
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when /^(\$[^.]*)$/
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# Global variables
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regmessage = Regexp.new(Regexp.quote($1))
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candidates = global_variables.collect{|m| m.to_s}.grep(regmessage)
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candidates = global_variables.collect(&:to_s).grep(regmessage)
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when /^([^."].*)\.([^.]*)$/
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# variable
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when /^([^."].*)\.([^.]*)$/
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# Variable
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receiver = $1
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message = Regexp.quote($2)
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gv = eval("global_variables", bind).collect{|m| m.to_s}
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lv = eval("local_variables", bind).collect{|m| m.to_s}
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cv = eval("self.class.constants", bind).collect{|m| m.to_s}
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gv = eval("global_variables", bind).collect(&:to_s)
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lv = eval("local_variables", bind).collect(&:to_s)
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cv = eval("self.class.constants", bind).collect(&:to_s)
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if (gv | lv | cv).include?(receiver) or /^[A-Z]/ =~ receiver && /\./ !~ receiver
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# foo.func and foo is local var. OR
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# Foo::Bar.func
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begin
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candidates = eval("#{receiver}.methods", bind).collect{|m| m.to_s}
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candidates = eval("#{receiver}.methods", bind).collect(&:to_s)
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rescue RescuableException
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candidates = []
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end
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@ -169,49 +193,35 @@ class Pry
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# jruby doesn't always provide #instance_methods() on each
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# object.
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if m.respond_to?(:instance_methods)
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candidates.concat m.instance_methods(false).collect{|x| x.to_s}
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candidates.concat m.instance_methods(false).collect(&:to_s)
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end
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}
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candidates.sort!
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candidates.uniq!
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end
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select_message(receiver, message, candidates)
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when /^(\.{2}\/)(.*)$/
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# previous scope (../) *
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stack = pry.binding_stack.dup
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stack.pop
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if stack.length >= 1
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receiver = $1
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message = $2
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scope = stack[-1]
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ivars = eval("instance_variables", scope)
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locals = eval("local_variables", scope)
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select_message(receiver, message, ivars + locals)
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end
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select_message(path, receiver, message, candidates)
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when /^\.([^.]*)$/
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# unknown(maybe String)
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# Unknown(maybe String)
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receiver = ""
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message = Regexp.quote($1)
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candidates = String.instance_methods(true).collect{|m| m.to_s}
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select_message(receiver, message, candidates)
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candidates = String.instance_methods(true).collect(&:to_s)
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select_message(path, receiver, message, candidates)
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else
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candidates = eval(
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"methods | private_methods | local_variables | " \
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"self.class.constants | instance_variables",
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bind
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).collect{|m| m.to_s}
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).collect(&:to_s)
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if eval("respond_to?(:class_variables)", bind)
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candidates += eval("class_variables", bind).collect { |m| m.to_s }
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candidates += eval("class_variables", bind).collect(&:to_s)
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end
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(candidates|ReservedWords|commands).grep(/^#{Regexp.quote(input)}/)
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candidates = (candidates|ReservedWords|commands).grep(/^#{Regexp.quote(input)}/)
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candidates.collect(&path)
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end
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rescue RescuableException
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[]
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@ -219,21 +229,33 @@ class Pry
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end
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end
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def self.select_message(receiver, message, candidates)
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def self.select_message(path, receiver, message, candidates)
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candidates.grep(/^#{message}/).collect do |e|
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if receiver.match(/^\.{2}\//)
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receiver + e.to_s
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else
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case e
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when /^[a-zA-Z_]/
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receiver + "." + e
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when /^[0-9]/
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when *Operators
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#receiver + " " + e
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end
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case e
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when /^[a-zA-Z_]/
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path.call(receiver + "." + e)
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when /^[0-9]/
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when *Operators
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#receiver + " " + e
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end
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end
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end
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def self.build_path(input)
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return proc {|input| input.to_s }, input if input[/\/\./]
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trailing_slash = input[-1] == '/'
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contexts = input.chomp('/').split(/\//)
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input = contexts[-1]
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path = proc do |input|
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p = contexts[0..-2].push(input).join('/')
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p += '/' if trailing_slash && !input.nil?
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p
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end
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return path, input
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end
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end
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end
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@ -1,5 +1,16 @@
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require 'helper'
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def new_completer(bind, pry=nil)
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Pry::InputCompleter.build_completion_proc(Pry.binding_for(bind), pry)
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end
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def completer_test(bind, pry=nil, assert_flag=true)
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completer = new_completer(bind, pry)
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test = proc {|symbol| completer.call(symbol[0..-2]).include?(symbol).should == assert_flag}
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return proc {|*symbols| symbols.each(&test) }
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end
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describe Pry::InputCompleter do
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before do
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@ -33,33 +44,83 @@ describe Pry::InputCompleter do
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it 'should complete instance variables' do
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object = Object.new
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# set variables in appropriate scope
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object.instance_variable_set(:'@name', 'Pry')
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object.class.send(:class_variable_set, :'@@number', 10)
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object.instance_variables.map { |v| v.to_sym } \
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.include?(:'@name').should == true
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# check to see if variables are in scope
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object.instance_variables.
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map { |v| v.to_sym }.
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include?(:'@name').should == true
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object.class.class_variables.map { |v| v.to_sym } \
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.include?(:'@@number').should == true
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completer = Pry::InputCompleter.build_completion_proc(
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Pry.binding_for(object)
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)
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object.class.class_variables.
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map { |v| v.to_sym }.
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include?(:'@@number').should == true
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# Complete instance variables.
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completer.call('@na').include?('@name').should == true
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completer.call('@name.down').include?('@name.downcase').should == true
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b = Pry.binding_for(object)
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completer_test(b).call('@name', '@name.downcase')
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# Complete class variables.
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completer = Pry::InputCompleter.build_completion_proc(
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Pry.binding_for(object.class)
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)
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b = Pry.binding_for(object.class)
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completer_test(b).call('@@number', '@@number.class')
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completer.call('@@nu').include?('@@number').should == true
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completer.call('@@number.cl').include?('@@number.class').should == true
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end
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it 'should complete previous scope' do
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it 'should complete for stdlib symbols' do
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o = Object.new
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# Regexp
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completer_test(o).call('/foo/.extend')
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# Array
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completer_test(o).call('[1].push')
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# Hash
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completer_test(o).call('{"a" => "b"}.keys')
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# Proc
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completer_test(o).call('{2}.call')
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# Symbol
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completer_test(o).call(':symbol.to_s')
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# Absolute Constant
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completer_test(o).call('::IndexError')
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end
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it 'should complete for target symbols' do
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o = Object.new
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# Constant
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module Mod
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Con = 'Constant'
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module Mod2
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end
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end
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completer_test(Mod).call('Con')
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# Constants or Class Methods
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completer_test(o).call('Mod::Con')
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# Symbol
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foo = :symbol
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completer_test(o).call(':symbol')
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# Variables
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class << o
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attr_accessor :foo
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end
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o.foo = 'bar'
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completer_test(binding).call('o.foo')
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# trailing slash
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new_completer(Mod).call('Mod2/').include?('Mod2/').should == true
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end
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it 'should complete for arbitrary scopes' do
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module Bar
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@barvar = :bar
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end
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@ -74,11 +135,12 @@ describe Pry::InputCompleter do
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stack.push(Pry.binding_for(Baz))
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stack.push(Pry.binding_for(Bar))
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completer = Pry::InputCompleter.build_completion_proc(
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Pry.binding_for(Bar), pry
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)
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b = Pry.binding_for(Bar)
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completer_test(b, pry).call("../@bazvar")
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completer_test(binding, pry).call('/Bar')
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completer.call('../@').include?("../@bazvar").should == true
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end
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end
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