class Byebug::Interface
Main Interface class
Contains common functionality to all implemented interfaces.
Attributes
command_queue[RW]
error[R]
history[RW]
input[R]
output[R]
Public Class Methods
new()
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# File lib/byebug/interface.rb, line 17 def initialize @command_queue, @history = [], History.new end
Public Instance Methods
autorestore()
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Restores history according to autosave
setting.
# File lib/byebug/interface.rb, line 92 def autorestore history.restore if Setting[:autosave] end
autosave()
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Saves or clears history according to autosave
setting.
# File lib/byebug/interface.rb, line 85 def autosave Setting[:autosave] ? history.save : history.clear end
close()
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# File lib/byebug/interface.rb, line 79 def close end
confirm(prompt)
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Confirms user introduced an affirmative response to the input stream.
# File lib/byebug/interface.rb, line 75 def confirm(prompt) readline(prompt) == 'y' end
errmsg(message)
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Prints an error message to the error stream.
# File lib/byebug/interface.rb, line 57 def errmsg(message) error.print("*** #{message}\n") end
print(message)
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# File lib/byebug/interface.rb, line 68 def print(message) output.print(message) end
puts(message)
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Prints an output message to the output stream.
# File lib/byebug/interface.rb, line 64 def puts(message) output.puts(message) end
read_command(prompt)
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Pops a command from the input stream.
# File lib/byebug/interface.rb, line 24 def read_command(prompt) return command_queue.shift unless command_queue.empty? cmds = read_input(prompt) return unless cmds command_queue.concat(cmds) command_queue.shift end
read_file(filename)
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Pushes lines in filename
to the command queue.
# File lib/byebug/interface.rb, line 38 def read_file(filename) command_queue.concat(get_lines(filename)) end
read_input(prompt, save_hist = true)
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Reads a new line from the interface's input stream.
# File lib/byebug/interface.rb, line 45 def read_input(prompt, save_hist = true) line = readline(prompt) return unless line history.push(line) if save_hist split_commands(line) end
Private Instance Methods
split_commands(cmd_line)
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Splits a command line of the form “cmd1 ; cmd2 ; … ; cmdN” into an array of commands: [cmd1, cmd2, …, cmdN]
# File lib/byebug/interface.rb, line 102 def split_commands(cmd_line) return [''] if cmd_line.empty? cmd_line.split(/;/).each_with_object([]) do |v, m| if m.empty? || m.last[-1] != '\' m << v next end m.last[-1, 1] = '' m.last << ';' << v end end