Fix rcirc messages printing in the wrong place

* lisp/net/rcirc.el (rcirc-send-message): Print the message before
sending it to the server.
(rcirc-print): Get the time with subsecond precision.
* lisp/calendar/parse-time.el (parse-time-string
parse-iso8601-time-string): Accept optional second FORM arguments,
with the same meaning as in `decode-time'.  Mention as such in the
docstring.  (Bug#59501)

Copyright-paperwork-exempt: yes

lisp/calendar/parse-time.el

@@ -147,7 +147,7 @@ letters, digits, plus or minus signs or colons."
 ;;;###autoload(put 'parse-time-rules 'risky-local-variable t)
 
 ;;;###autoload
-(defun parse-time-string (string)
+(defun parse-time-string (string &optional form)
   "Parse the time in STRING into (SEC MIN HOUR DAY MON YEAR DOW DST TZ).
 STRING should be an ISO 8601 time string, e.g., \"2020-01-15T16:12:21-08:00\",
 or something resembling an RFC 822 (or later) date-time, e.g.,
@@ -156,9 +156,11 @@ somewhat liberal in what format it accepts, and will attempt to
 return a \"likely\" value even for somewhat malformed strings.
 The values returned are identical to those of `decode-time', but
 any unknown values other than DST are returned as nil, and an
-unknown DST value is returned as -1."
+unknown DST value is returned as -1.
+
+See `decode-time' for the meaning of FORM."
   (condition-case ()
-      (iso8601-parse string)
+      (iso8601-parse string form)
     (wrong-type-argument
      (let ((time (list nil nil nil nil nil nil nil -1 nil))
 	   (temp (parse-time-tokenize (downcase string))))
@@ -199,12 +201,14 @@ unknown DST value is returned as -1."
 		     (setf (nth (pop slots) time) new-val))))))))
        time))))
 
-(defun parse-iso8601-time-string (date-string)
+(defun parse-iso8601-time-string (date-string &optional form)
   "Parse an ISO 8601 time string, such as \"2020-01-15T16:12:21-08:00\".
 Fall back on parsing something resembling an RFC 822 (or later) date-time.
 This function is like `parse-time-string' except that it returns
-a Lisp timestamp when successful."
+a Lisp timestamp when successful.
-  (when-let ((time (parse-time-string date-string)))
+
+See `decode-time' for the meaning of FORM."
+  (when-let ((time (parse-time-string date-string form)))
     (encode-time time)))
 
 (provide 'parse-time)

lisp/net/rcirc.el

@@ -1233,9 +1233,9 @@ If SILENT is non-nil, do not print the message in any irc buffer."
   (let ((response (if noticep "NOTICE" "PRIVMSG")))
     (rcirc-get-buffer-create process target)
     (dolist (msg (rcirc-split-message message))
-      (rcirc-send-string process response target : msg)
       (unless silent
-        (rcirc-print process (rcirc-nick process) response target msg)))))
+        (rcirc-print process (rcirc-nick process) response target msg))
+      (rcirc-send-string process response target : msg))))
 
 (defvar-local rcirc-input-ring nil
   "Ring object for input.")
@@ -2034,7 +2034,7 @@ connection."
                (not (string= sender (rcirc-nick process))))
     (let* ((buffer (rcirc-target-buffer process sender response target text))
            (time (if-let ((time (rcirc-get-tag "time")))
-                     (parse-iso8601-time-string time)
+                     (parse-iso8601-time-string time t)
                    (current-time)))
            (inhibit-read-only t))
       (with-current-buffer buffer
@@ -2204,7 +2204,7 @@ The message is logged in `rcirc-log', and is later written to
 disk.  PROCESS is the process object for the current connection."
   (let ((filename (funcall rcirc-log-filename-function process target))
         (time (and-let* ((time (rcirc-get-tag "time")))
-                (parse-iso8601-time-string time))))
+                (parse-iso8601-time-string time t))))
     (unless (null filename)
       (let ((cell (assoc-string filename rcirc-log-alist))
             (line (concat (format-time-string rcirc-time-format time)
@@ -2996,7 +2996,7 @@ If ARG is given, opens the URL in a new browser window."
   "Insert a timestamp."
   (goto-char (point-min))
   (let ((time (and-let* ((time (rcirc-get-tag "time")))
-                (parse-iso8601-time-string time))))
+                (parse-iso8601-time-string time t))))
     (insert (rcirc-facify (format-time-string rcirc-time-format time)
                           'rcirc-timestamp))))