/usr/lib/ruby/vendor_ruby/pry/commands/amend_line.rb is in pry 0.10.3-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 | class Pry
class Command::AmendLine < Pry::ClassCommand
match(/amend-line(?: (-?\d+)(?:\.\.(-?\d+))?)?/)
group 'Editing'
description 'Amend a line of input in multi-line mode.'
command_options :interpolate => false, :listing => 'amend-line'
banner <<-'BANNER'
Amend a line of input in multi-line mode. `amend-line N`, where the N represents
line to replace. Can also specify a range of lines using `amend-line N..M`
syntax. Passing "!" as replacement content deletes the line(s) instead.
amend-line 1 puts 'new' # replace line 1
amend-line 1..4 ! # delete lines 1..4
amend-line 3 >puts 'bye' # insert before line 3
amend-line puts 'appended' # no line number modifies immediately preceding line
BANNER
def process
raise CommandError, "No input to amend." if eval_string.empty?
eval_string.replace amended_input(eval_string)
run "fix-indent"
run "show-input"
end
private
# @param [String] string The string to amend.
# @return [String] A new string with the amendments applied to it.
def amended_input(string)
input_array = eval_string.each_line.to_a
if arg_string == "!"
delete_from_array(input_array, line_range)
elsif arg_string.start_with?(">")
insert_into_array(input_array, line_range)
else
replace_in_array(input_array, line_range)
end
input_array.join
end
def delete_from_array(array, range)
array.slice!(range)
end
def insert_into_array(array, range)
insert_slot = Array(range).first
array.insert(insert_slot, arg_string[1..-1] << "\n")
end
def replace_in_array(array, range)
array[range] = arg_string + "\n"
end
# @return [Fixnum] The number of lines currently in `eval_string` (the input buffer).
def line_count
eval_string.lines.count
end
# Returns the (one-indexed) start and end lines given by the user.
# The lines in this range will be affected by the `amend-line`.
# Returns `nil` if no lines were specified by the user.
# @return [Array<Fixnum>, nil]
def start_and_end_line_number
start_line_number, end_line_number = args
end_line_number ||= start_line_number.to_i
[start_line_number.to_i, end_line_number.to_i] if start_line_number
end
# Takes two numbers that are 1-indexed, and returns a range (or
# number) that is 0-indexed. 1-indexed means the first element is
# indentified by 1 rather than by 0 (as is the case for Ruby arrays).
# @param [Fixnum] start_line_number One-indexed number.
# @param [Fixnum] end_line_number One-indexed number.
# @return [Range] The zero-indexed range.
def zero_indexed_range_from_one_indexed_numbers(start_line_number, end_line_number)
# FIXME: one_index_number is a horrible name for this method
one_index_number(start_line_number)..one_index_number(end_line_number)
end
# The lines (or line) that will be modified by the `amend-line`.
# @return [Range, Fixnum] The lines or line.
def line_range
start_line_number, end_line_number = start_and_end_line_number
if start_line_number
zero_indexed_range_from_one_indexed_numbers(start_line_number,
end_line_number)
else
line_count - 1
end
end
end
Pry::Commands.add_command(Pry::Command::AmendLine)
end
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