# Copyright (C) 2011-2012 Tanaka Akira  <akr@fsij.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
#  1. Redistributions of source code must retain the above copyright
#     notice, this list of conditions and the following disclaimer.
#  2. Redistributions in binary form must reproduce the above
#     copyright notice, this list of conditions and the following
#     disclaimer in the documentation and/or other materials provided
#     with the distribution.
#  3. The name of the author may not be used to endorse or promote
#     products derived from this software without specific prior
#     written permission.
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Tb::Cmd.subcommands << 'to-pp'

def (Tb::Cmd).op_to_pp
  op = OptionParser.new
  op.banner = "Usage: tb to-pp [OPTS] [TABLE]\n" +
    "Convert a table to pretty printed format."
  define_common_option(op, "hNo", "--no-pager")
  op
end

def (Tb::Cmd).main_to_pp(argv)
  op_to_pp.parse!(argv)
  exit_if_help('to-pp')
  argv.unshift '-' if argv.empty?
  with_output {|out|
    argv.each {|filename|
      tablereader_open(filename) {|tblreader|
        tblreader.each {|pairs|
          a = pairs.reject {|f, v| v.nil? }
          q = PP.new(out, 79)
          q.guard_inspect_key {
            q.group(1, '{', '}') {
              q.seplist(a, nil, :each) {|kv|
                k, v = kv
                q.group {
                  q.pp k
                  q.text '=>'
                  q.group(1) {
                    q.breakable ''
                    q.pp v
                  }
                }
              }
            }
          }
          q.flush
          out << "\n"
        }
      }
    }
  }
end

