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When I write the following sentence, the grammar/spelling checker running on my Mac always suggests me to use prefixed to or prefaced with.
Functions implemented by a module should always have their names prefixed by the module name.
What I mean is that, if the module name is user, the function name should not be load(), but user_load().
Is it correct to use prefixed by, or should I use another phrase?
Both prefixed to and prefixed by are correct, but they have different meanings.
If A is prefixed to B, A is the prefix and B is what the prefix is added to. In this case the end result is A_B. To use your example, you could say that user is prefixed to load() to create user_load().
If A is prefixed by B, B is the prefix and A is what the prefix is added to. The result is B_A. For your example, you would say that load() is prefixed by user to create user_load().
To state this in more general terms for your entire project, you might make either of these statements:
Each method name related to the
userobject is prefixed by the stringuser.The string
useris prefixed to each method name related to theuserobject.
And concerning the sentence in your question:
Functions implemented by a module should always have their names prefixed by the module name.
It is indeed correct, because the suffix (function name) is prefixed by the prefix (module name).
