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Allow user control of progress messages in cpp.el

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* progmodes/cpp.el (cpp-message-min-time-interval): New defcustom.
(cpp-progress-time): Use 'cpp-message-min-time-interval'.  Improve
the doc string.
(cpp-highlight-buffer): Use 'cpp-progress-message' instead of
'message' to print messages.  (Bug#24861)

Copyright-paperwork-exempt: yes
This commit is contained in:
Hong Xu 2016-11-25 12:51:22 +02:00 • committed by Eli Zaretskii
parent 8da61f8846
commit 83bf70f81e
1 changed files with 21 additions and 9 deletions
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30
lisp/progmodes/cpp.el
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@ -104,6 +104,13 @@ Each entry is a list with the following elements:
(const :tag "Both branches writable" both))))
:group 'cpp)
(defcustom cpp-message-min-time-interval 1.0
"Minimum time interval in seconds for `cpp-progress-message' messages.
If nil, `cpp-progress-message' prints no progress messages."
:type 'float
:group 'cpp
:version "26.1")
(defvar cpp-overlay-list nil)
;; List of cpp overlays active in the current buffer.
(make-variable-buffer-local 'cpp-overlay-list)
@ -278,7 +285,7 @@ A prefix arg suppresses display of that buffer."
(cpp-parse-close from to))
(t
(cpp-parse-error "Parser error"))))))))
(message "Parsing...done"))
(cpp-progress-message "Parsing...done"))
(if cpp-state-stack
(save-excursion
(goto-char (nth 3 (car cpp-state-stack)))
@ -819,16 +826,21 @@ BRANCH should be either nil (false branch), t (true branch) or `both'."
;;; Utilities:
(defvar cpp-progress-time 0)
;; Last time we issued a progress message.
(defvar cpp-progress-time 0
"Last time `cpp-progress-message' issued a progress message.")
(defun cpp-progress-message (&rest args)
;; Report progress at most once a second. Take same ARGS as `message'.
(let ((time (nth 1 (current-time))))
(if (= time cpp-progress-time)
()
(setq cpp-progress-time time)
(apply 'message args))))
"Report progress by printing messages used by \"cpp-\" functions.
Print messages at most once every `cpp-message-min-time-interval' seconds.
If that option is nil, don't prints messages.
ARGS are the same as for `message'."
(when cpp-message-min-time-interval
(let ((time (current-time)))
(when (>= (float-time (time-subtract time cpp-progress-time))
cpp-message-min-time-interval)
(setq cpp-progress-time time)
(apply 'message args)))))
(provide 'cpp)