53 lines
1.6 KiB
Plaintext
53 lines
1.6 KiB
Plaintext
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For future reference these are some API design ideas- not working code!
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Java API ideas
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http://www.ioplex.com/~miallen/encdec/ (binary pack/unpack utilities)
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The Java API would take an object, and a list of field names, then use the
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Java Reflection API to read or write those fields during packing and
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unpacking.
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I.e. if you are going to unpack a tpl with format string A(if), you
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might create a Java class that has two instance variables (an int and
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a double). Then you create an object of that class, and pass it to
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tpl_map (or perhaps a constructor for the Tpl class), like
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class Unpacker {
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int count;
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double weight;
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}
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...
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Unpacker up = new Unpacker();
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Tpl tn = new Tpl("A(if)", up, "count", "weight");
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tn.tpl_unpack(1); // stores unpacked values into count,weight using Reflection
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Ruby API ideas
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#!/usr/local/ruby/bin/ruby -w
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class Tpl < Hash
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def initialize(fmt, *args)
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@fmt = fmt
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@args = args
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end
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def pack
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@args.each {|key| puts "#{key} #{self[key]}"}
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end
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end
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p = Tpl.new("A(i)", :id);
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10.times do |i|
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p[:id] = i
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p.pack
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end
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p.dump("/tmp/file.tpl") # p.dump(arg) checks arg.respond_to?(:write)
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p = Tpl.new("A(i)", :id);
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p.load("/tmp/file.tpl")
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p.unpack(1) {|h| puts h[:id]}
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