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# File 'lib/lolcat/cat.rb', line 50
def self.cat!
p = Trollop::Parser.new do
version "lolcat #{Lolcat::VERSION} (c)2011 [email protected]"
banner <<HEADER
Usage: lolcat [OPTION]... [FILE]...
Concatenate FILE(s), or standard input, to standard output.
With no FILE, or when FILE is -, read standard input.
HEADER
banner ''
opt :spread, "Rainbow spread", :short => 'p', :default => 3.0
opt :freq, "Rainbow frequency", :short => 'F', :default => 0.1
opt :seed, "Rainbow seed, 0 = random", :short => 'S', :default => 0
opt :animate, "Enable psychedelics", :short => 'a', :default => false
opt :duration, "Animation duration", :short => 'd', :default => 12
opt :speed, "Animation speed", :short => 's', :default => 20.0
opt :force, "Force color even when stdout is not a tty", :short => 'f', :default => false
opt :version, "Print version and exit", :short => 'v'
opt :help, "Show this message", :short => 'h'
banner <<FOOTER
Examples:
lolcat f - g Output f's contents, then stdin, then g's contents.
lolcat Copy standard input to standard output.
fortune | lolcat Display a rainbow cookie.
Report lolcat bugs to <http://www.github.org/busyloop/lolcat/issues>
lolcat home page: <http://www.github.org/busyloop/lolcat/>
Report lolcat translation bugs to <http://speaklolcat.com/>
FOOTER
end
opts = Trollop::with_standard_exception_handling p do
begin
o = p.parse ARGV
rescue Trollop::HelpNeeded
buf = StringIO.new
p.educate buf
buf.rewind
halp! buf.read, {}
buf.close
end
o
end
p.die :spread, "must be > 0" if opts[:spread] < 0.1
p.die :duration, "must be > 0" if opts[:duration] < 0.1
p.die :speed, "must be > 0.1" if opts[:speed] < 0.1
opts[:os] = opts[:seed]
opts[:os] = rand(256) if opts[:os] == 0
begin
files = ARGV.empty? ? [:stdin] : ARGV[0..-1]
files.each do |file|
fd = ARGF if file == '-' or file == :stdin
begin
fd = File.open file unless fd == ARGF
if $stdout.tty? or opts[:force]
Lol.cat fd, opts
else
until fd.eof? do
$stdout.write(fd.read(8192))
end
end
rescue Errno::ENOENT
puts "lolcat: #{file}: No such file or directory"
exit 1
rescue Errno::EACCES
puts "lolcat: #{file}: Permission denied"
exit 1
rescue Errno::EISDIR
puts "lolcat: #{file}: Is a directory"
exit 1
rescue Errno::EPIPE
exit 1
end
end
rescue Interrupt
end
end
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