24 lines
529 B
Plaintext
24 lines
529 B
Plaintext
loop {
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var expr = Sys.readln("\nBoolean expression (e.g. 'a & b'): ").strip.lc
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break if expr.is_empty;
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var vars = expr.scan(/[[:alpha:]]+/)
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if (vars.is_empty) {
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say "no variables detected in your boolean expression"
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next
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}
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var prefix = [];
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var suffix = [];
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vars.each { |v|
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print "#{v}\t"
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prefix << "[false, true].each { |#{v}|"
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suffix << "}"
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}
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say "| #{expr}"
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var body = ("say (" + vars.map{|v| v+",'\t'," }.join + " '| ', #{expr})")
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eval(prefix + [body] + suffix -> join("\n"))
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}
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