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by two_handfuls
954 days ago
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These systems are based on the idea is that rather than directly editing the shared document, each program sends a stream of “update objects.” An example would be “create new line $xyz after line $abc.” These “update objects” can be combined to get the current document state. They have the property that if two programs receive the same set of uodate objects, regardless of the order they get them in, then they have the same current document state. They define any state resulting from applying the operations as “legit.” In order for that to feel “legit” to the users you want to very carefully choose your operations and their semantics. |
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