mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-24 10:38:38 +00:00
544 lines
20 KiB
EmacsLisp
544 lines
20 KiB
EmacsLisp
;;; timer.el --- run a function with args at some time in future
|
||
|
||
;; Copyright (C) 1996, 2001, 2002, 2003, 2004, 2005,
|
||
;; 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
|
||
|
||
;; Maintainer: FSF
|
||
|
||
;; This file is part of GNU Emacs.
|
||
|
||
;; GNU Emacs is free software: you can redistribute it and/or modify
|
||
;; it under the terms of the GNU General Public License as published by
|
||
;; the Free Software Foundation, either version 3 of the License, or
|
||
;; (at your option) any later version.
|
||
|
||
;; GNU Emacs is distributed in the hope that it will be useful,
|
||
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
;; GNU General Public License for more details.
|
||
|
||
;; You should have received a copy of the GNU General Public License
|
||
;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
|
||
|
||
;;; Commentary:
|
||
|
||
;; This package gives you the capability to run Emacs Lisp commands at
|
||
;; specified times in the future, either as one-shots or periodically.
|
||
|
||
;;; Code:
|
||
|
||
;; Layout of a timer vector:
|
||
;; [triggered-p high-seconds low-seconds usecs repeat-delay
|
||
;; function args idle-delay]
|
||
;; triggered-p is nil if the timer is active (waiting to be triggered),
|
||
;; t if it is inactive ("already triggered", in theory)
|
||
|
||
(eval-when-compile (require 'cl))
|
||
|
||
(defstruct (timer
|
||
(:constructor nil)
|
||
(:copier nil)
|
||
(:constructor timer-create ())
|
||
(:type vector)
|
||
(:conc-name timer--))
|
||
(triggered t)
|
||
high-seconds low-seconds usecs repeat-delay function args idle-delay)
|
||
|
||
(defun timerp (object)
|
||
"Return t if OBJECT is a timer."
|
||
(and (vectorp object) (= (length object) 8)))
|
||
|
||
;; Pseudo field `time'.
|
||
(defun timer--time (timer)
|
||
(list (timer--high-seconds timer)
|
||
(timer--low-seconds timer)
|
||
(timer--usecs timer)))
|
||
|
||
(defsetf timer--time
|
||
(lambda (timer time)
|
||
(or (timerp timer) (error "Invalid timer"))
|
||
(setf (timer--high-seconds timer) (pop time))
|
||
(setf (timer--low-seconds timer)
|
||
(if (consp time) (car time) time))
|
||
(setf (timer--usecs timer) (or (and (consp time) (consp (cdr time))
|
||
(cadr time))
|
||
0))))
|
||
|
||
|
||
(defun timer-set-time (timer time &optional delta)
|
||
"Set the trigger time of TIMER to TIME.
|
||
TIME must be in the internal format returned by, e.g., `current-time'.
|
||
If optional third argument DELTA is a positive number, make the timer
|
||
fire repeatedly that many seconds apart."
|
||
(setf (timer--time timer) time)
|
||
(setf (timer--repeat-delay timer) (and (numberp delta) (> delta 0) delta))
|
||
timer)
|
||
|
||
(defun timer-set-idle-time (timer secs &optional repeat)
|
||
"Set the trigger idle time of TIMER to SECS.
|
||
SECS may be an integer, floating point number, or the internal
|
||
time format (HIGH LOW USECS) returned by, e.g., `current-idle-time'.
|
||
If optional third argument REPEAT is non-nil, make the timer
|
||
fire each time Emacs is idle for that many seconds."
|
||
(if (consp secs)
|
||
(setf (timer--time timer) secs)
|
||
(setf (timer--time timer) '(0 0 0))
|
||
(timer-inc-time timer secs))
|
||
(setf (timer--repeat-delay timer) repeat)
|
||
timer)
|
||
|
||
(defun timer-next-integral-multiple-of-time (time secs)
|
||
"Yield the next value after TIME that is an integral multiple of SECS.
|
||
More precisely, the next value, after TIME, that is an integral multiple
|
||
of SECS seconds since the epoch. SECS may be a fraction."
|
||
(let ((time-base (ash 1 16)))
|
||
(if (fboundp 'atan)
|
||
;; Use floating point, taking care to not lose precision.
|
||
(let* ((float-time-base (float time-base))
|
||
(million 1000000.0)
|
||
(time-usec (+ (* million
|
||
(+ (* float-time-base (nth 0 time))
|
||
(nth 1 time)))
|
||
(nth 2 time)))
|
||
(secs-usec (* million secs))
|
||
(mod-usec (mod time-usec secs-usec))
|
||
(next-usec (+ (- time-usec mod-usec) secs-usec))
|
||
(time-base-million (* float-time-base million)))
|
||
(list (floor next-usec time-base-million)
|
||
(floor (mod next-usec time-base-million) million)
|
||
(floor (mod next-usec million))))
|
||
;; Floating point is not supported.
|
||
;; Use integer arithmetic, avoiding overflow if possible.
|
||
(let* ((mod-sec (mod (+ (* (mod time-base secs)
|
||
(mod (nth 0 time) secs))
|
||
(nth 1 time))
|
||
secs))
|
||
(next-1-sec (+ (- (nth 1 time) mod-sec) secs)))
|
||
(list (+ (nth 0 time) (floor next-1-sec time-base))
|
||
(mod next-1-sec time-base)
|
||
0)))))
|
||
|
||
(defun timer-relative-time (time secs &optional usecs)
|
||
"Advance TIME by SECS seconds and optionally USECS microseconds.
|
||
SECS may be either an integer or a floating point number."
|
||
;; FIXME: we should just use (time-add time (list 0 secs usecs))
|
||
(let ((high (car time))
|
||
(low (if (consp (cdr time)) (nth 1 time) (cdr time)))
|
||
(micro (if (numberp (car-safe (cdr-safe (cdr time))))
|
||
(nth 2 time)
|
||
0)))
|
||
;; Add
|
||
(if usecs (setq micro (+ micro usecs)))
|
||
(if (floatp secs)
|
||
(setq micro (+ micro (floor (* 1000000 (- secs (floor secs)))))))
|
||
(setq low (+ low (floor secs)))
|
||
|
||
;; Normalize
|
||
;; `/' rounds towards zero while `mod' returns a positive number,
|
||
;; so we can't rely on (= a (+ (* 100 (/ a 100)) (mod a 100))).
|
||
(setq low (+ low (/ micro 1000000) (if (< micro 0) -1 0)))
|
||
(setq micro (mod micro 1000000))
|
||
(setq high (+ high (/ low 65536) (if (< low 0) -1 0)))
|
||
(setq low (logand low 65535))
|
||
|
||
(list high low (and (/= micro 0) micro))))
|
||
|
||
(defun timer--time-less-p (t1 t2)
|
||
"Say whether time value T1 is less than time value T2."
|
||
;; FIXME just use time-less-p.
|
||
(destructuring-bind (high1 low1 micro1) (timer--time t1)
|
||
(destructuring-bind (high2 low2 micro2) (timer--time t2)
|
||
(or (< high1 high2)
|
||
(and (= high1 high2)
|
||
(or (< low1 low2)
|
||
(and (= low1 low2)
|
||
(< micro1 micro2))))))))
|
||
|
||
(defun timer-inc-time (timer secs &optional usecs)
|
||
"Increment the time set in TIMER by SECS seconds and USECS microseconds.
|
||
SECS may be a fraction. If USECS is omitted, that means it is zero."
|
||
(setf (timer--time timer)
|
||
(timer-relative-time (timer--time timer) secs usecs)))
|
||
|
||
(defun timer-set-time-with-usecs (timer time usecs &optional delta)
|
||
"Set the trigger time of TIMER to TIME plus USECS.
|
||
TIME must be in the internal format returned by, e.g., `current-time'.
|
||
The microsecond count from TIME is ignored, and USECS is used instead.
|
||
If optional fourth argument DELTA is a positive number, make the timer
|
||
fire repeatedly that many seconds apart."
|
||
(setf (timer--time timer) time)
|
||
(setf (timer--usecs timer) usecs)
|
||
(setf (timer--repeat-delay timer) (and (numberp delta) (> delta 0) delta))
|
||
timer)
|
||
(make-obsolete 'timer-set-time-with-usecs
|
||
"use `timer-set-time' and `timer-inc-time' instead."
|
||
"22.1")
|
||
|
||
(defun timer-set-function (timer function &optional args)
|
||
"Make TIMER call FUNCTION with optional ARGS when triggering."
|
||
(or (timerp timer)
|
||
(error "Invalid timer"))
|
||
(setf (timer--function timer) function)
|
||
(setf (timer--args timer) args)
|
||
timer)
|
||
|
||
(defun timer--activate (timer &optional triggered-p reuse-cell idle)
|
||
(if (and (timerp timer)
|
||
(integerp (timer--high-seconds timer))
|
||
(integerp (timer--low-seconds timer))
|
||
(integerp (timer--usecs timer))
|
||
(timer--function timer))
|
||
(let ((timers (if idle timer-idle-list timer-list))
|
||
last)
|
||
;; Skip all timers to trigger before the new one.
|
||
(while (and timers (timer--time-less-p (car timers) timer))
|
||
(setq last timers
|
||
timers (cdr timers)))
|
||
(if reuse-cell
|
||
(progn
|
||
(setcar reuse-cell timer)
|
||
(setcdr reuse-cell timers))
|
||
(setq reuse-cell (cons timer timers)))
|
||
;; Insert new timer after last which possibly means in front of queue.
|
||
(if last
|
||
(setcdr last reuse-cell)
|
||
(if idle
|
||
(setq timer-idle-list reuse-cell)
|
||
(setq timer-list reuse-cell)))
|
||
(setf (timer--triggered timer) triggered-p)
|
||
(setf (timer--idle-delay timer) idle)
|
||
nil)
|
||
(error "Invalid or uninitialized timer")))
|
||
|
||
(defun timer-activate (timer &optional triggered-p reuse-cell idle)
|
||
"Put TIMER on the list of active timers.
|
||
|
||
If TRIGGERED-P is t, that means to make the timer inactive
|
||
\(put it on the list, but mark it as already triggered).
|
||
To remove from the list, use `cancel-timer'.
|
||
|
||
REUSE-CELL, if non-nil, is a cons cell to reuse instead
|
||
of allocating a new one."
|
||
(timer--activate timer triggered-p reuse-cell nil))
|
||
|
||
(defun timer-activate-when-idle (timer &optional dont-wait reuse-cell)
|
||
"Arrange to activate TIMER whenever Emacs is next idle.
|
||
If optional argument DONT-WAIT is non-nil, then enable the
|
||
timer to activate immediately, or at the right time, if Emacs
|
||
is already idle.
|
||
|
||
REUSE-CELL, if non-nil, is a cons cell to reuse instead
|
||
of allocating a new one."
|
||
(timer--activate timer (not dont-wait) reuse-cell 'idle))
|
||
|
||
(defalias 'disable-timeout 'cancel-timer)
|
||
|
||
(defun cancel-timer (timer)
|
||
"Remove TIMER from the list of active timers."
|
||
(or (timerp timer)
|
||
(error "Invalid timer"))
|
||
(setq timer-list (delq timer timer-list))
|
||
(setq timer-idle-list (delq timer timer-idle-list))
|
||
nil)
|
||
|
||
(defun cancel-timer-internal (timer)
|
||
"Remove TIMER from the list of active timers or idle timers.
|
||
Only to be used in this file. It returns the cons cell
|
||
that was removed from the timer list."
|
||
(let ((cell1 (memq timer timer-list))
|
||
(cell2 (memq timer timer-idle-list)))
|
||
(if cell1
|
||
(setq timer-list (delq timer timer-list)))
|
||
(if cell2
|
||
(setq timer-idle-list (delq timer timer-idle-list)))
|
||
(or cell1 cell2)))
|
||
|
||
(defun cancel-function-timers (function)
|
||
"Cancel all timers which would run FUNCTION.
|
||
This affects ordinary timers such as are scheduled by `run-at-time',
|
||
and idle timers such as are scheduled by `run-with-idle-timer'."
|
||
(interactive "aCancel timers of function: ")
|
||
(dolist (timer timer-list)
|
||
(if (eq (timer--function timer) function)
|
||
(setq timer-list (delq timer timer-list))))
|
||
(dolist (timer timer-idle-list)
|
||
(if (eq (timer--function timer) function)
|
||
(setq timer-idle-list (delq timer timer-idle-list)))))
|
||
|
||
;; Record the last few events, for debugging.
|
||
(defvar timer-event-last nil
|
||
"Last timer that was run.")
|
||
(defvar timer-event-last-1 nil
|
||
"Next-to-last timer that was run.")
|
||
(defvar timer-event-last-2 nil
|
||
"Third-to-last timer that was run.")
|
||
|
||
(defvar timer-max-repeats 10
|
||
"*Maximum number of times to repeat a timer, if many repeats are delayed.
|
||
Timer invocations can be delayed because Emacs is suspended or busy,
|
||
or because the system's time changes. If such an occurrence makes it
|
||
appear that many invocations are overdue, this variable controls
|
||
how many will really happen.")
|
||
|
||
(defun timer-until (timer time)
|
||
"Calculate number of seconds from when TIMER will run, until TIME.
|
||
TIMER is a timer, and stands for the time when its next repeat is scheduled.
|
||
TIME is a time-list."
|
||
;; FIXME: (time-to-seconds (time-subtract (timer--time timer) time))
|
||
(let ((high (- (car time) (timer--high-seconds timer)))
|
||
(low (- (nth 1 time) (timer--low-seconds timer))))
|
||
(+ low (* high 65536))))
|
||
|
||
(defun timer-event-handler (timer)
|
||
"Call the handler for the timer TIMER.
|
||
This function is called, by name, directly by the C code."
|
||
(setq timer-event-last-2 timer-event-last-1)
|
||
(setq timer-event-last-1 timer-event-last)
|
||
(setq timer-event-last timer)
|
||
(let ((inhibit-quit t))
|
||
(if (timerp timer)
|
||
(let (retrigger cell)
|
||
;; Delete from queue. Record the cons cell that was used.
|
||
(setq cell (cancel-timer-internal timer))
|
||
;; Re-schedule if requested.
|
||
(if (timer--repeat-delay timer)
|
||
(if (timer--idle-delay timer)
|
||
(timer-activate-when-idle timer nil cell)
|
||
(timer-inc-time timer (timer--repeat-delay timer) 0)
|
||
;; If real time has jumped forward,
|
||
;; perhaps because Emacs was suspended for a long time,
|
||
;; limit how many times things get repeated.
|
||
(if (and (numberp timer-max-repeats)
|
||
(< 0 (timer-until timer (current-time))))
|
||
(let ((repeats (/ (timer-until timer (current-time))
|
||
(timer--repeat-delay timer))))
|
||
(if (> repeats timer-max-repeats)
|
||
(timer-inc-time timer (* (timer--repeat-delay timer)
|
||
repeats)))))
|
||
(timer-activate timer t cell)
|
||
(setq retrigger t)))
|
||
;; Run handler.
|
||
;; We do this after rescheduling so that the handler function
|
||
;; can cancel its own timer successfully with cancel-timer.
|
||
(condition-case nil
|
||
(apply (timer--function timer) (timer--args timer))
|
||
(error nil))
|
||
(if retrigger
|
||
(setf (timer--triggered timer) nil)))
|
||
(error "Bogus timer event"))))
|
||
|
||
;; This function is incompatible with the one in levents.el.
|
||
(defun timeout-event-p (event)
|
||
"Non-nil if EVENT is a timeout event."
|
||
(and (listp event) (eq (car event) 'timer-event)))
|
||
|
||
|
||
(declare-function diary-entry-time "diary-lib" (s))
|
||
|
||
(defun run-at-time (time repeat function &rest args)
|
||
"Perform an action at time TIME.
|
||
Repeat the action every REPEAT seconds, if REPEAT is non-nil.
|
||
TIME should be one of: a string giving an absolute time like
|
||
\"11:23pm\" (the acceptable formats are those recognized by
|
||
`diary-entry-time'; note that such times are interpreted as times
|
||
today, even if in the past); a string giving a relative time like
|
||
\"2 hours 35 minutes\" (the acceptable formats are those
|
||
recognized by `timer-duration'); nil meaning now; a number of
|
||
seconds from now; a value from `encode-time'; or t (with non-nil
|
||
REPEAT) meaning the next integral multiple of REPEAT. REPEAT may
|
||
be an integer or floating point number. The action is to call
|
||
FUNCTION with arguments ARGS.
|
||
|
||
This function returns a timer object which you can use in `cancel-timer'."
|
||
(interactive "sRun at time: \nNRepeat interval: \naFunction: ")
|
||
|
||
(or (null repeat)
|
||
(and (numberp repeat) (< 0 repeat))
|
||
(error "Invalid repetition interval"))
|
||
|
||
;; Special case: nil means "now" and is useful when repeating.
|
||
(if (null time)
|
||
(setq time (current-time)))
|
||
|
||
;; Special case: t means the next integral multiple of REPEAT.
|
||
(if (and (eq time t) repeat)
|
||
(setq time (timer-next-integral-multiple-of-time (current-time) repeat)))
|
||
|
||
;; Handle numbers as relative times in seconds.
|
||
(if (numberp time)
|
||
(setq time (timer-relative-time (current-time) time)))
|
||
|
||
;; Handle relative times like "2 hours 35 minutes"
|
||
(if (stringp time)
|
||
(let ((secs (timer-duration time)))
|
||
(if secs
|
||
(setq time (timer-relative-time (current-time) secs)))))
|
||
|
||
;; Handle "11:23pm" and the like. Interpret it as meaning today
|
||
;; which admittedly is rather stupid if we have passed that time
|
||
;; already. (Though only Emacs hackers hack Emacs at that time.)
|
||
(if (stringp time)
|
||
(progn
|
||
(require 'diary-lib)
|
||
(let ((hhmm (diary-entry-time time))
|
||
(now (decode-time)))
|
||
(if (>= hhmm 0)
|
||
(setq time
|
||
(encode-time 0 (% hhmm 100) (/ hhmm 100) (nth 3 now)
|
||
(nth 4 now) (nth 5 now) (nth 8 now)))))))
|
||
|
||
(or (consp time)
|
||
(error "Invalid time format"))
|
||
|
||
(let ((timer (timer-create)))
|
||
(timer-set-time timer time repeat)
|
||
(timer-set-function timer function args)
|
||
(timer-activate timer)
|
||
timer))
|
||
|
||
(defun run-with-timer (secs repeat function &rest args)
|
||
"Perform an action after a delay of SECS seconds.
|
||
Repeat the action every REPEAT seconds, if REPEAT is non-nil.
|
||
SECS and REPEAT may be integers or floating point numbers.
|
||
The action is to call FUNCTION with arguments ARGS.
|
||
|
||
This function returns a timer object which you can use in `cancel-timer'."
|
||
(interactive "sRun after delay (seconds): \nNRepeat interval: \naFunction: ")
|
||
(apply 'run-at-time secs repeat function args))
|
||
|
||
(defun add-timeout (secs function object &optional repeat)
|
||
"Add a timer to run SECS seconds from now, to call FUNCTION on OBJECT.
|
||
If REPEAT is non-nil, repeat the timer every REPEAT seconds.
|
||
This function is for compatibility; see also `run-with-timer'."
|
||
(run-with-timer secs repeat function object))
|
||
|
||
(defun run-with-idle-timer (secs repeat function &rest args)
|
||
"Perform an action the next time Emacs is idle for SECS seconds.
|
||
The action is to call FUNCTION with arguments ARGS.
|
||
SECS may be an integer, a floating point number, or the internal
|
||
time format (HIGH LOW USECS) returned by, e.g., `current-idle-time'.
|
||
If Emacs is currently idle, and has been idle for N seconds (N < SECS),
|
||
then it will call FUNCTION in SECS - N seconds from now.
|
||
|
||
If REPEAT is non-nil, do the action each time Emacs has been idle for
|
||
exactly SECS seconds (that is, only once for each time Emacs becomes idle).
|
||
|
||
This function returns a timer object which you can use in `cancel-timer'."
|
||
(interactive
|
||
(list (read-from-minibuffer "Run after idle (seconds): " nil nil t)
|
||
(y-or-n-p "Repeat each time Emacs is idle? ")
|
||
(intern (completing-read "Function: " obarray 'fboundp t))))
|
||
(let ((timer (timer-create)))
|
||
(timer-set-function timer function args)
|
||
(timer-set-idle-time timer secs repeat)
|
||
(timer-activate-when-idle timer t)
|
||
timer))
|
||
|
||
(defun with-timeout-handler (tag)
|
||
"This is the timer function used for the timer made by `with-timeout'."
|
||
(throw tag 'timeout))
|
||
|
||
(put 'with-timeout 'lisp-indent-function 1)
|
||
|
||
(defvar with-timeout-timers nil
|
||
"List of all timers used by currently pending `with-timeout' calls.")
|
||
|
||
(defmacro with-timeout (list &rest body)
|
||
"Run BODY, but if it doesn't finish in SECONDS seconds, give up.
|
||
If we give up, we run the TIMEOUT-FORMS and return the value of the last one.
|
||
The timeout is checked whenever Emacs waits for some kind of external
|
||
event (such as keyboard input, input from subprocesses, or a certain time);
|
||
if the program loops without waiting in any way, the timeout will not
|
||
be detected.
|
||
\n(fn (SECONDS TIMEOUT-FORMS...) BODY)"
|
||
(let ((seconds (car list))
|
||
(timeout-forms (cdr list)))
|
||
`(let ((with-timeout-tag (cons nil nil))
|
||
with-timeout-value with-timeout-timer
|
||
(with-timeout-timers with-timeout-timers))
|
||
(if (catch with-timeout-tag
|
||
(progn
|
||
(setq with-timeout-timer
|
||
(run-with-timer ,seconds nil
|
||
'with-timeout-handler
|
||
with-timeout-tag))
|
||
(push with-timeout-timer with-timeout-timers)
|
||
(setq with-timeout-value (progn . ,body))
|
||
nil))
|
||
(progn . ,timeout-forms)
|
||
(cancel-timer with-timeout-timer)
|
||
with-timeout-value))))
|
||
|
||
(defun with-timeout-suspend ()
|
||
"Stop the clock for `with-timeout'. Used by debuggers.
|
||
The idea is that the time you spend in the debugger should not
|
||
count against these timeouts.
|
||
|
||
The value is a list that the debugger can pass to `with-timeout-unsuspend'
|
||
when it exits, to make these timers start counting again."
|
||
(mapcar (lambda (timer)
|
||
(cancel-timer timer)
|
||
(list timer (time-subtract (timer--time timer) (current-time))))
|
||
with-timeout-timers))
|
||
|
||
(defun with-timeout-unsuspend (timer-spec-list)
|
||
"Restart the clock for `with-timeout'.
|
||
The argument should be a value previously returned by `with-timeout-suspend'."
|
||
(dolist (elt timer-spec-list)
|
||
(let ((timer (car elt))
|
||
(delay (cadr elt)))
|
||
(timer-set-time timer (time-add (current-time) delay))
|
||
(timer-activate timer))))
|
||
|
||
(defun y-or-n-p-with-timeout (prompt seconds default-value)
|
||
"Like (y-or-n-p PROMPT), with a timeout.
|
||
If the user does not answer after SECONDS seconds, return DEFAULT-VALUE."
|
||
(with-timeout (seconds default-value)
|
||
(y-or-n-p prompt)))
|
||
|
||
(defvar timer-duration-words
|
||
(list (cons "microsec" 0.000001)
|
||
(cons "microsecond" 0.000001)
|
||
(cons "millisec" 0.001)
|
||
(cons "millisecond" 0.001)
|
||
(cons "sec" 1)
|
||
(cons "second" 1)
|
||
(cons "min" 60)
|
||
(cons "minute" 60)
|
||
(cons "hour" (* 60 60))
|
||
(cons "day" (* 24 60 60))
|
||
(cons "week" (* 7 24 60 60))
|
||
(cons "fortnight" (* 14 24 60 60))
|
||
(cons "month" (* 30 24 60 60)) ; Approximation
|
||
(cons "year" (* 365.25 24 60 60)) ; Approximation
|
||
)
|
||
"Alist mapping temporal words to durations in seconds.")
|
||
|
||
(defun timer-duration (string)
|
||
"Return number of seconds specified by STRING, or nil if parsing fails."
|
||
(let ((secs 0)
|
||
(start 0)
|
||
(case-fold-search t))
|
||
(while (string-match
|
||
"[ \t]*\\([0-9.]+\\)?[ \t]*\\([a-z]+[a-rt-z]\\)s?[ \t]*"
|
||
string start)
|
||
(let ((count (if (match-beginning 1)
|
||
(string-to-number (match-string 1 string))
|
||
1))
|
||
(itemsize (cdr (assoc (match-string 2 string)
|
||
timer-duration-words))))
|
||
(if itemsize
|
||
(setq start (match-end 0)
|
||
secs (+ secs (* count itemsize)))
|
||
(setq secs nil
|
||
start (length string)))))
|
||
(if (= start (length string))
|
||
secs
|
||
(if (string-match-p "\\`[0-9.]+\\'" string)
|
||
(string-to-number string)))))
|
||
|
||
(provide 'timer)
|
||
|
||
;; arch-tag: b1a9237b-7787-4382-9e46-8f2c3b3273e0
|
||
;;; timer.el ends here
|