21 lines
344 B
Lua
21 lines
344 B
Lua
local util = { }
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util.stack = { }
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function util.throw(column, msg)
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error("column "..column..": "..msg)
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end
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function util.stack.push(stack, value)
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table.insert(stack, value)
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end
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function util.stack.pop(stack)
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return table.remove(stack, #stack)
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end
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function util.stack.top(stack)
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return stack[#stack]
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end
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return util |