script/core/substring.lua


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local guide = require 'parser.guide'

return function (state)
    ---@param pos1 parser.position
    ---@param pos2 parser.position
    ---@return string
    return function (pos1, pos2)
        return state.lua:sub(
            guide.positionToOffset(state, pos1),
            guide.positionToOffset(state, pos2)
        )
    end
end