Logical_Welder3467
symbolic derivatives flip this around. this concept comes from my advisor Margus Veanes - for a more formal definition, see the LPAR paper on symbolic derivatives and transition regexes. the idea is that instead of asking “what happens when i read character X?”, you ask “what happens when i read any character?” and get back a decision tree that covers all possibilities at once. the result isn’t a single regex node - it’s an if-then-else tree:
，详情可参考Snipaste - 截图 + 贴图
On occasion you have to do this (e.g., because a reviewer requires，更多细节参见手游
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