mirror of
https://github.com/kanaka/mal.git
synced 2024-09-20 10:07:45 +03:00
47 lines
869 B
Lua
Executable File
47 lines
869 B
Lua
Executable File
#!/usr/bin/env lua
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local readline = require('readline')
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local utils = require('utils')
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local reader = require('reader')
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local printer = require('printer')
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-- read
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function READ(str)
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return reader.read_str(str)
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end
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-- eval
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function EVAL(ast, env)
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return ast
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end
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-- print
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function PRINT(exp)
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return printer._pr_str(exp, true)
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end
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-- repl
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function rep(str)
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return PRINT(EVAL(READ(str),""))
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end
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if #arg > 0 and arg[1] == "--raw" then
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readline.raw = true
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end
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while true do
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line = readline.readline("user> ")
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if not line then break end
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xpcall(function()
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print(rep(line))
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end, function(exc)
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if exc then
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if types._malexception_Q(exc) then
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exc = printer._pr_str(exc.val, true)
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end
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print("Error: " .. exc)
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print(debug.traceback())
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end
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end)
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end
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