Inject error in function

This function injects an error in an m-file at a line. Can be used to abort a function.

This function (most likely) generates an error at an arbitrary line in a function. The taken approach may be used to solve the long-standing problem of breaking out of a function using a callback, without the need to modify the function in question.
It does this by quite brutal means: Namely, it injects ( via the use of dbstop ) at every line the command `clear all`.