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a9cd654347
I'm away from my main workstation for a week and unfortunately, I only copied the code but not the branch with full history so this is just the implementation. However, the history isn't all that interesting (mostly just the steps one at a time) and I wanted to get this out there.
39 lines
559 B
Groovy
39 lines
559 B
Groovy
import reader
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import printer
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import types.MalException
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// READ
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READ = { str ->
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reader.read_str str
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}
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// EVAL
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EVAL = { ast, env ->
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ast
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}
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// PRINT
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PRINT = { exp ->
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printer.pr_str exp, true
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}
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// REPL
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REP = { str ->
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PRINT(EVAL(READ(str), [:]))
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}
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while (true) {
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line = System.console().readLine 'user> '
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if (line == null) {
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break;
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}
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try {
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println REP(line)
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} catch(MalException ex) {
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println "Error: ${ex.message}"
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} catch(ex) {
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println "Error: $ex"
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ex.printStackTrace()
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}
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}
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