mirror of
https://github.com/kanaka/mal.git
synced 2024-09-20 10:07:45 +03:00
34 lines
650 B
Python
34 lines
650 B
Python
import sys, traceback
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import mal_readline
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# read
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def READ(str):
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return str
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# eval
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def EVAL(ast, env):
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# try it as an expression then a statement
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try:
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return eval(ast)
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except SyntaxError:
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exec compile(ast, '', 'single') in globals()
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return None
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# print
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def PRINT(exp):
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return exp
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# repl
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def REP(str):
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return PRINT(EVAL(READ(str), {}))
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# repl loop
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while True:
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try:
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line = mal_readline.readline("user> ")
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if line == None: break
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if line == "": continue
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print(REP(line))
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except Exception as e:
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print("".join(traceback.format_exception(*sys.exc_info())))
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