auctex: Exploiting
A.5.1 How AUCTeX and the native mode work together
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In a nutshell the split between AUCTeX Texinfo mode, and native Texinfo
mode is as follows:
* Most of the editing (environment creation, commenting, font command
insertions) and/or processing commands (e.g. compiling or
printing) which are available in other AUCTeX modes are also
handled by AUCTeX in Texinfo mode.
* Texinfo-related features (e.g. info node linkage or menu creation)
rely on the commands provided by the native Texinfo mode. AUCTeX
provides the key bindings to reach these functions, keeping the
same keys as in native Texinfo whenever possible, or similar ones
otherwise.