revised pager.....
Gary Kline
kline at thought.org
Mon Feb 21 01:18:03 UTC 2011
THis is to the entire list, mostly to Chip. It is o8.rb, my
very slightly tweaked version of what you ma/// rather, what i
found and began messing with a couple, three hours ago.
I searched++ and could not find the C equivalent of
"if counter % N == 0" in ruby. For some reason, use of parens
in ruby seems to be discouraged. Anyway, I would have coded that
ruby line as
if ( counter % 15) == 0
but didn't want to risk it since i don't know ruby.
Anyway, o8.rb included. This version, using the "[][][][][]" to
emulate a bar, makes reading a reasonably-sized bunch of text
much easier.
Thanks again for your help.
--
Gary Kline kline at thought.org http://www.thought.org Public Service Unix
%%%% ruby script appended.
#!/usr/bin/env ruby
require 'optparse'
pagesize = 15
count = 0
optparse = OptionParser.new do |opts|
opts.banner = 'usage: npg [-n pagesize] file...'
opts.on('-n', '--numlines pagesize', 'Specify page size in number of lines') do |n|
pagesize = n.to_i
end
end
begin
optparse.parse!
rescue OptionParser::InvalidOption, OptionParser::MissingArgument => e
puts e
puts optparse
exit 1
end
loop do
if count == 0
puts("\n[][][][][][][][][][][][][][][][][][][][][][][]")
count += 1
end
pagesize.times do
if line = gets
puts line
if count % 15 == 0
puts("===")
count = 0
end
else
exit
end
end
puts("\n[][][][][][][][][][][][][][][][][][][][][][][]\n\n")
print "More..."
system "stty raw"
STDIN.getc
system "stty -raw"
end
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