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require 'tempfile'
require "util"
class Numeric
def to_pretty_s
%w(zero one two three four five six seven eight nine ten)[self] || to_s
end
end
class String
def dcfirst; self[0..0].downcase + self[1..-1] end
def blank?; self =~ /\A\s*\z/ end
def underline; self + "\n" + ("-" * self.length) end
def pluralize n, b=true
s = (n == 1 ? self : (self == 'bugfix' ? 'bugfixes' : self + "s")) # oh yeah
b ? n.to_pretty_s + " " + s : s
end
def shortened_email; self =~ /<?(\S+?)@.+/ ? $1 : self end
def multistrip; strip.gsub(/\n\n+/, "\n\n") end
end
class Array
def listify prefix=""
return "" if empty?
"\n" +
map_with_index { |x, i| x.to_s.gsub(/^/, "#{prefix}#{i + 1}. ") }.
join("\n")
end
end
class Time
def pretty; strftime "%c" end
def pretty_date; strftime "%Y-%m-%d" end
def ago
diff = (Time.now - self).to_i.abs
if diff < 60
"second".pluralize diff
elsif diff < 60*60*3
"minute".pluralize(diff / 60)
elsif diff < 60*60*24*3
"hour".pluralize(diff / (60*60))
elsif diff < 60*60*24*7*2
"day".pluralize(diff / (60*60*24))
elsif diff < 60*60*24*7*8
"week".pluralize(diff / (60*60*24*7))
elsif diff < 60*60*24*7*52
"month".pluralize(diff / (60*60*24*7*4))
else
"year".pluralize(diff / (60*60*24*7*52))
end
end
end
module Lowline
def run_editor
f = Tempfile.new "ditz"
yield f
f.close
editor = ENV["EDITOR"] || "/usr/bin/vi"
cmd = "#{editor} #{f.path.inspect}"
mtime = File.mtime f.path
system cmd or raise Error, "cannot execute command: #{cmd.inspect}"
File.mtime(f.path) == mtime ? nil : f.path
end
def ask q, opts={}
default_s = case opts[:default]
when nil; nil
when ""; " (enter for none)"
else; " (enter for #{opts[:default].inspect})"
end
tail = case q
when /[:?]$/; " "
when /[:?]\s+$/; ""
else; ": "
end
while true
prompt = [q, default_s, tail].compact.join
if Ditz::has_readline?
ans = Readline::readline(prompt)
else
print prompt
ans = STDIN.gets.strip
end
if opts[:default]
ans = opts[:default] if ans.blank?
else
next if ans.blank? && !opts[:empty_ok]
end
break ans unless (opts[:restrict] && ans !~ opts[:restrict])
end
end
def ask_via_editor q, default=nil
fn = run_editor do |f|
f.puts(default || "")
f.puts q.gsub(/^/, "## ")
f.puts "##"
f.puts "## Enter your text above. Lines starting with a '#' will be ignored."
end
return unless fn
IO.read(fn).gsub(/^#.*$/, "").multistrip
end
def ask_multiline q
puts "#{q} (ctrl-d, ., or /stop to stop, /edit to edit, /reset to reset):"
ans = ""
while true
if Ditz::has_readline?
line = Readline::readline('> ')
else
(line = STDIN.gets) && line.strip!
end
if line
if Ditz::has_readline?
Readline::HISTORY.push(line)
end
case line
when /^\.$/, "/stop"
break
when "/reset"
return ask_multiline(q)
when "/edit"
return ask_via_editor(q, ans)
else
ans << line + "\n"
end
else
puts
break
end
end
ans.multistrip
end
def ask_yon q
while true
print "#{q} (y/n): "
a = STDIN.gets.strip
break a if a =~ /^[yn]$/i
end =~ /y/i
end
def ask_for_many plural_name, name=nil
name ||= plural_name.gsub(/s$/, "")
stuff = []
while true
puts
puts "Current #{plural_name}:"
if stuff.empty?
puts "None!"
else
stuff.each_with_index { |c, i| puts " #{i + 1}) #{c}" }
end
puts
ans = ask "(A)dd #{name}, (r)emove #{name}, or (d)one"
case ans
when "a", "A"
ans = ask "#{name.capitalize} name", ""
stuff << ans unless ans =~ /^\s*$/
when "r", "R"
ans = ask "Remove which #{name}? (1--#{stuff.size})"
stuff.delete_at(ans.to_i - 1) if ans
when "d", "D"
break
end
end
stuff
end
def ask_for_selection stuff, name, to_string=:to_s
puts "Choose a #{name}:"
stuff.each_with_index do |c, i|
pretty = case to_string
when block_given? && to_string # heh
yield c
when Symbol
c.send to_string
when Proc
to_string.call c
else
raise ArgumentError, "unknown to_string argument type; expecting Proc or Symbol"
end
puts " #{i + 1}) #{pretty}"
end
j = while true
i = ask "#{name.capitalize} (1--#{stuff.size})"
break i.to_i if i && (1 .. stuff.size).member?(i.to_i)
end
stuff[j - 1]
end
end
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