/usr/lib/ruby/1.9.1/diakonos.rb is in diakonos 0.9.0-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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# == Diakonos
#
# A Linux console text editor for the masses.
# :title: Diakonos
#
# Author:: Pistos (irc.freenode.net)
# http://diakonos.pist0s.ca/
# Copyright (c) 2004-2011 Pistos
#
# This software is released under the MIT licence.
# See the LICENCE file included with this program, or
# http://www.opensource.org/licenses/mit-license.php
#
require 'curses'
require 'open3'
require 'thread'
require 'English'
require 'set'
require 'yaml'
require 'digest/md5'
require 'timeout'
require 'diakonos/core-ext/object'
require 'diakonos/core-ext/enumerable'
require 'diakonos/core-ext/regexp'
require 'diakonos/core-ext/hash'
require 'diakonos/core-ext/string'
require 'diakonos/core-ext/fixnum'
require 'diakonos/core-ext/bignum'
require 'diakonos/buffer-hash'
require 'diakonos/sized-array'
require 'diakonos/version'
require 'diakonos/installation'
require 'diakonos/about'
require 'diakonos/buffer-management'
require 'diakonos/config'
require 'diakonos/cursor'
require 'diakonos/functions'
require 'diakonos/functions/basics'
require 'diakonos/functions/bookmarking'
require 'diakonos/functions/buffers'
require 'diakonos/functions/clipboard'
require 'diakonos/functions/cursor'
require 'diakonos/functions/grepping'
require 'diakonos/functions/indentation'
require 'diakonos/functions/readline'
require 'diakonos/functions/search'
require 'diakonos/functions/selection'
require 'diakonos/functions/sessions'
require 'diakonos/functions/shell'
require 'diakonos/functions/tags'
require 'diakonos/functions/text-manipulation'
require 'diakonos/functions-deprecated'
require 'diakonos/help'
require 'diakonos/display'
require 'diakonos/display/format'
require 'diakonos/grep'
require 'diakonos/hooks'
require 'diakonos/interaction'
require 'diakonos/keying'
require 'diakonos/logging'
require 'diakonos/list'
require 'diakonos/search'
require 'diakonos/sessions'
require 'diakonos/text-mark'
require 'diakonos/bookmark'
require 'diakonos/ctag'
require 'diakonos/finding'
require 'diakonos/buffer'
require 'diakonos/buffer/bookmarking'
require 'diakonos/buffer/cursor'
require 'diakonos/buffer/delete'
require 'diakonos/buffer/display'
require 'diakonos/buffer/indentation'
require 'diakonos/buffer/file'
require 'diakonos/buffer/searching'
require 'diakonos/buffer/selection'
require 'diakonos/buffer/undo'
require 'diakonos/clipboard'
require 'diakonos/clipboard-klipper'
require 'diakonos/clipboard-klipper-dbus'
require 'diakonos/clipboard-xclip'
require 'diakonos/extension'
require 'diakonos/extension-set'
require 'diakonos/key-map'
require 'diakonos/mode'
require 'diakonos/readline'
require 'diakonos/readline/functions'
require 'diakonos/vendor/fuzzy_file_finder'
module Diakonos
DONT_ADJUST_ROW = false
ADJUST_ROW = true
PROMPT_OVERWRITE = true
DONT_PROMPT_OVERWRITE = false
QUIET = true
NOISY = false
AFTER_CHAR = true
ON_CHAR = false
INCLUSIVE = true
NOT_INCLUSIVE = false
DEFAULT_TAB_SIZE = 8
FORCE_REVERT = true
ASK_REVERT = false
ASK_REPLACEMENT = true
NO_REPLACEMENT = nil
CASE_SENSITIVE = true
CASE_INSENSITIVE = false
LANG_TEXT = 'text'
class Diakonos
attr_reader :diakonos_home, :script_dir, :clipboard,
:list_filename, :hooks, :indenters, :indenters_next_line, :unindenters, :closers,
:functions_last, :there_was_non_movement, :do_display, :testing, :buffers
include ::Diakonos::Functions
def initialize( argv = [] )
@diakonos_home = File.expand_path( ( ENV[ 'HOME' ] || '' ) + '/.diakonos' )
mkdir @diakonos_home
@script_dir = "#{@diakonos_home}/scripts"
mkdir @script_dir
@extensions = ExtensionSet.new( File.join( @diakonos_home, 'extensions' ) )
initialize_session
@files = Array.new
@read_only_files = Array.new
@config_filename = nil
parse_options argv
init_help
@debug = File.new( File.join( @diakonos_home, 'debug.log' ), 'w' )
@list_filename = File.join( @diakonos_home, 'listing.txt' )
@diff_filename = File.join( @diakonos_home, 'text.diff' )
@help_filename = File.join( @help_dir, 'about-help.dhf' )
@error_filename = File.join( @diakonos_home, 'diakonos.err' )
@about_filename = File.join( @diakonos_home, 'about.dhf' )
@win_main = nil
@win_context = nil
@win_status = nil
@win_interaction = nil
@win_line_numbers = nil
@buffers = Array.new
load_configuration
@quitting = false
@x = 0
@y = 0
@buffer_stack = Array.new
@buffer_current = nil
@cursor_stack = Array.new
@cursor_stack_pointer = nil
@bookmarks = Hash.new
@macro_history = nil
@macro_input_history = nil
@macros = Hash.new
@functions_last = SizedArray.new(2)
@playing_macro = false
@display_mutex = Mutex.new
@display_queue_mutex = Mutex.new
@display_queue = nil
@do_display = true
@iline_mutex = Mutex.new
@tag_stack = Array.new
@last_search_regexps = nil
@iterated_choice = nil
@choice_iterations = 0
@there_was_non_movement = false
@status_vars = Hash.new
# Readline histories
@rlh_general = Array.new
@rlh_files = Array.new
@rlh_search = Array.new
@rlh_shell = Array.new
@rlh_help = Array.new
@rlh_sessions = Array.new
@hooks = {
:after_buffer_switch => [],
:after_open => [],
:after_save => [],
:after_startup => [],
}
end
def mkdir( dir )
if ! FileTest.exists?( dir )
Dir.mkdir dir
end
end
def parse_options( argv )
@post_load_script = ""
while argv.length > 0
arg = argv.shift
case arg
when '-c', '--config'
@config_filename = argv.shift
if @config_filename.nil?
print_usage
exit 1
end
when '-e', '--execute'
post_load_script = argv.shift
if post_load_script.nil?
print_usage
exit 1
else
@post_load_script << "\n#{post_load_script}"
end
when '-h', '--help'
print_usage
exit 1
when '-m', '--open-matching'
regexp = argv.shift
files = `egrep -rl '#{regexp}' *`.split( /\n/ )
if files.any?
@files.concat( files.map { |f| session_file_hash_for f } )
script = "\nfind '#{regexp}', case_sensitive: true"
@post_load_script << script
end
when '-ro'
filename = argv.shift
if filename.nil?
print_usage
exit 1
else
h = session_file_hash_for( filename )
h[ 'read_only' ] = true
@read_only_files.push h
end
when '-s', '--load-session'
@session_to_load = session_filepath_for( argv.shift )
when '--test', '--testing'
@testing = true
when '--uninstall'
puts "use Debian installer to uninstall Diakonos"
#uninstall
when '--uninstall-without-confirmation'
puts "use Debian installer to uninstall Diakonos"
#uninstall false
when '--version'
puts "Diakonos #{::Diakonos::VERSION} (#{::Diakonos::LAST_MODIFIED})"
exit 0
else
# a name of a file to open
@files.push session_file_hash_for( arg )
end
end
end
def print_usage
puts "Usage: #{$0} [options] [file] [file...]"
puts "\t--help\tDisplay usage"
puts "\t-c <config file>\tLoad this config file instead of ~/.diakonos/diakonos.conf"
puts "\t-e, --execute <Ruby code>\tExecute Ruby code (such as Diakonos commands) after startup"
puts "\t-m, --open-matching <regular expression>\tOpen all matching files under current directory"
puts "\t-ro <file>\tLoad file as read-only"
puts "\t-s, --load-session <session identifier>\tLoad a session"
#puts "\t--uninstall[-without-confirmation]\tUninstall Diakonos"
end
def clear_non_movement_flag
@there_was_non_movement = false
end
# -----------------------------------------------------------------------
def start
require 'diakonos/window'
initialize_display
@files.each do |file|
@buffers << Buffer.new( file )
end
@files = []
@read_only_files.each do |file|
@buffers << Buffer.new( file )
end
if ! @testing
session_buffers = session_startup
end
session_buffer_number = @session[ 'buffer_current' ] || 1
@files.each do |file_info|
@buffers << Buffer.new( file_info )
end
if @buffers.empty?
@buffers << Buffer.new
end
@buffers.each do |buffer|
buffer.reset_display
end
if ENV[ 'COLORTERM' ] == 'gnome-terminal'
help_key = 'Shift-F1'
else
help_key = 'F1'
end
set_iline "Diakonos #{VERSION} (#{LAST_MODIFIED}) #{help_key} for help F12 to configure Ctrl-Q to quit"
scripts = @extensions.scripts + Dir[ "#{@script_dir}/*" ]
scripts.each do |script|
begin
require script
rescue Exception => e
show_exception(
e,
[
"There is a syntax error in the script.",
"An invalid hook name was used."
]
)
end
end
@hooks.each do |hook_name, hook|
hook.sort { |a,b| a[ :priority ] <=> b[ :priority ] }
end
if session_buffers
session_buffers.each do |buffer|
close_buffer buffer
end
end
if @post_load_script
eval @post_load_script
end
run_hook_procs :after_startup
if ! switch_to_buffer_number( session_buffer_number )
debug_log "Failed to switch to buffer #{session_buffer_number.inspect}"
switch_to_buffer_number 1
end
@buffers.each do |b|
run_hook_procs :after_open, b
b.cursor_to( b.last_row, b.last_col, Buffer::DONT_DISPLAY )
end
buffer_current.cursor_to( buffer_current.last_row, buffer_current.last_col, Buffer::DONT_DISPLAY )
if @config_problems.any?
File.open( @error_filename, "w" ) do |f|
f.puts "There are #{@config_problems.size} problems with the configuration file(s):"
@config_problems.each do |p|
f.puts p
end
end
open_file @error_filename
end
if ! @testing && ! @settings[ 'suppress_welcome' ]
open_file "#{@help_dir}/welcome.dhf"
else
conflict_regexp_source = '^<{4,}'
if seek(conflict_regexp_source)
find conflict_regexp_source
end
end
begin
# Main keyboard loop.
while ! @quitting
process_keystroke
@win_main.refresh
end
rescue SignalException => e
debug_log "Terminated by signal (#{e.message})"
end
cleanup_display
cleanup_session
@debug.close
end
def uninstall( confirm = true )
#inst = ::Diakonos::INSTALL_SETTINGS[ :installed ]
#if confirm
# puts inst[ :files ].sort.join( "\n" )
# puts
# puts inst[ :dirs ].sort.map { |d| "#{d}/" }.join( "\n" )
# puts
# puts "The above files will be removed. The above directories will be removed if they are empty. Proceed? (y/n)"
# answer = $stdin.gets
# case answer
# when /^y/i
# puts "Deleting..."
# else
# puts "Uninstallation aborted."
# exit 1
# end
#end
#require 'fileutils'
#inst[ :files ].each do |f|
# FileUtils.rm f
#end
#inst[ :dirs ].sort { |d1,d2| d2.length <=> d1.length }.each do |d|
# begin
# FileUtils.rmdir d
# rescue Errno::ENOTEMPTY
# end
# if File.exists? d
# $stderr.puts "(#{d} not removed)"
# end
#end
#exit 0
end
def get_language_from_name( name )
@filemasks.each do |language,filemask|
if name =~ filemask
return language
end
end
nil
end
def get_language_from_shabang( first_line )
@bangmasks.each do |language,bangmask|
if first_line =~ bangmask
return language
end
end
nil
end
def show_exception( e, probable_causes = [ "Unknown" ] )
begin
File.open( @error_filename, "w" ) do |f|
f.puts "Diakonos Error:"
f.puts
f.puts "#{e.class}: #{e.message}"
f.puts
f.puts "Probable Causes:"
f.puts
probable_causes.each do |pc|
f.puts "- #{pc}"
end
f.puts
f.puts "----------------------------------------------------"
f.puts "If you can reproduce this error, please report it at"
f.puts "https://github.com/Pistos/diakonos/issues !"
f.puts "----------------------------------------------------"
f.puts e.backtrace
end
open_file @error_filename
rescue Exception => e2
debug_log "EXCEPTION: #{e.message}"
debug_log "\t#{e.backtrace}"
end
end
def start_recording_macro( name = nil )
return if @macro_history
@macro_name = name
@macro_history = Array.new
@macro_input_history = Array.new
set_iline "Started macro recording."
end
def stop_recording_macro
@macro_history.pop # Remove the stop_recording_macro command itself
@macros[ @macro_name ] = [ @macro_history, @macro_input_history ]
@macro_history = nil
@macro_input_history = nil
set_iline "Stopped macro recording."
end
def load_tags
@tags = Hash.new
if buffer_current && buffer_current.name
path = File.expand_path( File.dirname( buffer_current.name ) )
tagfile = path + "/tags"
else
tagfile = "./tags"
end
if ! FileTest.exists? tagfile
set_iline "(tags file not found)"
else
IO.foreach( tagfile ) do |line_|
line = line_.chomp
# <tagname>\t<filepath>\t<line number or regexp>\t<kind of tag>
tag, file, command, kind, rest = line.split( /\t/ )
command.gsub!( /;"$/, "" )
if command =~ /^\/.*\/$/
command = command[ 1...-1 ]
end
@tags[ tag ] ||= Array.new
@tags[ tag ].push CTag.new( file, command, kind, rest )
end
end
end
def escape_quotes( str )
temp = ''
str.each_byte do |b|
if b == 39
temp << 39
temp << 92
temp << 39
end
temp << b
end
temp
end
# @return [Array] the filename and line number parsed
def parse_filename_and_line_number( s )
if(
# Ruby
s =~ /from (.+):(\d+)/ ||
# Python
s =~ /File "(.+)", line (\d+)/ ||
# Perl
s =~ /at (.+) line (\d+)/ ||
# generic
s =~ /^(.+):(\d+)/
)
[ $1, ( $2.to_i - 1 ) ]
else
[ s, nil ]
end
end
end
end
::Diakonos.check_ruby_version
if __FILE__ == $PROGRAM_NAME
$diakonos = Diakonos::Diakonos.new( ARGV )
$diakonos.start
end
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