such as (bug#4699).
* simple.el (completion-base-position): New var.
(completion-base-size): Mark as obsolete.
(choose-completion): Make it work for mouse events as well.
Pass the new base-position to choose-completion-string.
(choose-completion-guess-base-position): New function, extracted from
choose-completion-delete-max-match.
(choose-completion-delete-max-match): Use it. Make obsolete.
(choose-completion-string): Use the new base-position info.
(completion-root-regexp): Delete.
(completion-setup-function): Preserve completion-base-position.
Eliminate obsolete base-size manipulation.
* minibuffer.el (display-completion-list): Don't mess with base-size.
(minibuffer-completion-help): Set completion-base-position instead.
* mouse.el (mouse-choose-completion): Redefine as a mere alias to
choose-completion.
* textmodes/bibtex.el (bibtex-complete):
* emacs-lisp/crm.el (crm--choose-completion-string):
Adjust to new calling convention.
* complete.el (partial-completion-mode): Use minibufferp to avoid
bumping into incompatible change to choose-completion-string-functions.
* ido.el (ido-choose-completion-string): Make its calling convention
more permissive.
* comint.el (comint-dynamic-list-input-ring-select): Remove obsolete
base-size manipulation.
(comint-dynamic-list-input-ring): Use dotimes and push.
* iswitchb.el (iswitchb-completion-help): Remove dead-code call to
fundamental-mode. Use `or'.
(partial-completion-mode) <choose-completion-string-functions>:
Do not go to the end of the minibuffer if PC-goto-end is non-nil.
(PC-do-completion): New optional fourth argument GOTO-END. Add a
doc string. Set PC-goto-end for choose-completion.
(PC-lisp-complete-symbol): Pass non-nil GOTO-END arg to
PC-do-completion.
(partial-completion-mode) <choose-completion-string-functions>:
Use PC-do-completion-end in the non-minibuffer case to replace the
correct amount of text.
(PC-do-completion): Set PC-do-completion-end for c-c-s-f.
(PC-lisp-complete-symbol): Give marker the after-insertion type,
to deal with improvements inserted after point.
the non-filename case, rather than setting to nil.
(PC-lisp-complete-end): New variable.
(PC-lisp-complete-symbol): Use PC-lisp-complete-end to store the
original end in a series of consecutive invocations.
`choose-completion-string-functions' use full function signature
with 4 args, and move point to the end of the minibuffer only if arg
`mini-p' is non-nil.
sure that choose-completion fills the minibuffer properly.
(PC-old-read-file-name-internal): Remove.
(PC-read-include-file-name-internal): Remove. Turn it into an advice
of read-file-name-internal.
(partial-completion-mode): Enable/disable this advice.
