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https://github.com/kanaka/mal.git
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61 lines
1.5 KiB
VimL
61 lines
1.5 KiB
VimL
" printer module
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function PrStr(ast, readable)
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let obj = a:ast
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let r = a:readable
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if ListQ(obj)
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let ret = []
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for e in obj.val
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call add(ret, PrStr(e, r))
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endfor
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return "(" . join(ret, " ") . ")"
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elseif VectorQ(obj)
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let ret = []
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for e in obj.val
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call add(ret, PrStr(e, r))
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endfor
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return "[" . join(ret, " ") . "]"
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elseif HashQ(obj)
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let ret = []
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for [k, v] in items(obj.val)
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let keyobj = HashParseKey(k)
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call add(ret, PrStr(keyobj, r))
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call add(ret, PrStr(v, r))
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endfor
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return "{" . join(ret, " ") . "}"
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elseif MacroQ(obj)
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let numargs = ListCount(obj.val.params)
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return "<Macro:" . numargs . "-arguments>"
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elseif FunctionQ(obj)
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let numargs = ListCount(obj.val.params)
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return "<Function:" . numargs . "-arguments>"
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elseif NativeFunctionQ(obj)
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let funcname = obj.val.name
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return "<NativeFunction:" . funcname . ">"
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elseif AtomQ(obj)
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return "(atom " . PrStr(obj.val, 1) . ")"
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elseif KeywordQ(obj)
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return ':' . obj.val
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elseif StringQ(obj)
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if r
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let str = obj.val
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let str = substitute(str, '\\', '\\\\', "g")
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let str = substitute(str, '"', '\\"', "g")
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let str = substitute(str, "\n", '\\n', "g")
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return '"' . str . '"'
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else
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return obj.val
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endif
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elseif NilQ(obj)
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return "nil"
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elseif TrueQ(obj)
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return "true"
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elseif FalseQ(obj)
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return "false"
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elseif IntegerQ(obj) || FloatQ(obj)
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return string(obj.val)
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else
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return obj.val
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end
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endfunction
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