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8a19f60386
- Reorder README to have implementation list after "learning tool" bullet. - This also moves tests/ and libs/ into impls. It would be preferrable to have these directories at the top level. However, this causes difficulties with the wasm implementations which need pre-open directories and have trouble with paths starting with "../../". So in lieu of that, symlink those directories to the top-level. - Move the run_argv_test.sh script into the tests directory for general hygiene.
29 lines
665 B
JavaScript
29 lines
665 B
JavaScript
import rl from './node_readline.js'
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const readline = rl.readline
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import { BlankException, read_str } from './reader'
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import { pr_str } from './printer'
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// read
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const READ = str => read_str(str)
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// eval
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const EVAL = (ast, env) => ast
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// print
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const PRINT = exp => pr_str(exp, true)
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// repl
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const REP = str => PRINT(EVAL(READ(str), {}))
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while (true) {
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let line = readline('user> ')
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if (line == null) break
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try {
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if (line) { console.log(REP(line)) }
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} catch (exc) {
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if (exc instanceof BlankException) { continue }
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if (exc instanceof Error) { console.warn(exc.stack) }
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else { console.warn(`Error: ${exc}`) }
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}
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}
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