开源包管理中的版本要求建模

We propose a universal model of requirement actions. While the concept of requirements is the same across packaging ecosystems, the syntax used to represent them is not, creating unnecessary confusion. The proposed model does not provide a new syntax for adoption but offers a precise way for ecosystems to define the meaning of their requirement operators. All ecosystem-specific requirements can be translated into the model as well as being defined within it, and dependency-resolution tools need not be specific to a requirement syntax.