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Alan Mackenzie authored
This macro is a bit like combine-after-change-calls, but also works with a non-null before-change-functions. It suppresses the operation of the change hooks on a possibly large sequence of buffer modifications, replacing them with a single invocation of before-change-functions at the start, and a single invocation of after-change-functions at the end. * lisp/subr.el (undo--combining-change-calls): New variable. (combine-change-calls-1, undo--wrap-and-run-primitive-undo): New functions. (combine-change-calls): New macro. * doc/lispref/text.texi (Change Hooks): Document combine-change-calls. * etc/NEWS: Add an entry under "Lisp Changes" for combine-change-calls.
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