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34 lines
774 B
Plaintext
34 lines
774 B
Plaintext
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-- appends n arrays to the end of the first array
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append = (tab1, ...) ->
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for n = 1, select "#", ...
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tab2 = select n, ...
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for i = 1, #tab2
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tab1[#tab1+1] = tab2[i]
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return tab1
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-- returns a new table shallow copying data from all arguments
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-- later arguments overwrite any keys in earlier arguments
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-- ignores non-table arguments (skipping them)
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shallow_copy = (...) ->
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new = {}
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for n = 1, select "#", ...
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tab = select n, ...
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if "table" == type tab
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for k,v in pairs tab
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new[k] = v
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return new
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-- returns a new table with flipped keys and values
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invert = (tab) ->
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new = {}
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for key, value in pairs tab
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new[value] = key
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return new
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{
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:append
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:shallow_copy
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shallow_merge: shallow_copy -- TODO deprecate
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:invert
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}
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