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require 'coderay'
SAMPLE = "puts 17 + 4\n"
puts 'Encoders Demo: ' + SAMPLE
scanner = CodeRay::Scanners[:ruby].new SAMPLE
encoder = CodeRay::Encoders[:statistic].new
tokens = scanner.tokenize
stats = encoder.encode_tokens tokens
puts
puts 'Statistic:'
puts stats
# alternative 1
tokens = CodeRay.scan SAMPLE, :ruby
encoder = CodeRay.encoder(:json)
textual = encoder.encode_tokens tokens
puts
puts 'Original text:'
puts textual
# alternative 2
yaml = CodeRay.encoder(:yaml).encode SAMPLE, :ruby
puts
puts 'YAML:'
puts yaml
# alternative 3
require 'zlib'
BIGSAMPLE = SAMPLE * 100
dump = Zlib::Deflate.deflate(CodeRay.scan(BIGSAMPLE, :ruby).debug)
puts
puts 'Dump:'
p dump
puts 'compressed: %d byte < %d byte' % [dump.size, BIGSAMPLE.size]
puts
puts 'Undump:'
puts CodeRay.scan(Zlib::Inflate.inflate(dump), :debug).statistic
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