* lisp/tq.el: no need for tq.el apparently

1 files changed, 0 insertions, 171 deletions

diff --git a/lisp/tq.el b/lisp/tq.el
deleted file mode 100644
index 81a152f..0000000
--- a/lisp/tq.el
+++ /dev/null
@@ -1,171 +0,0 @@
-;;; tq.el --- utility to maintain a transaction queue
-
-;; Copyright (C) 1985, 1986, 1987, 1992, 2001, 2002, 2003, 2004,
-;;   2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
-
-;; Author: Scott Draves <spot@cs.cmu.edu>
-;; Maintainer: FSF
-;; Adapted-By: ESR
-;; Keywords: extensions
-
-;; 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 file manages receiving a stream asynchronously, parsing it
-;; into transactions, and then calling the associated handler function
-;; upon the completion of each transaction.
-
-;; Our basic structure is the queue/process/buffer triple.  Each entry
-;; of the queue part is a list of question, regexp, closure, and
-;; function that is consed to the last element.
-
-;; A transaction queue may be created by calling `tq-create'.
-
-;; A request may be added to the queue by calling `tq-enqueue'.  If
-;; the `delay-question' argument is non-nil, we will wait to send the
-;; question to the process until it has finished sending other input.
-;; Otherwise, once a request is enqueued, we send the given question
-;; immediately to the process.
-
-;; We then buffer bytes from the process until we see the regexp that
-;; was provided in the call to `tq-enqueue'.  Then we call the
-;; provided function with the closure and the collected bytes.  If we
-;; have indicated that the question from the next transaction was not
-;; sent immediately, send it at this point, awaiting the response.
-
-;;; Code:
-
-;;; Accessors
-
-;; This part looks like (queue . (process . buffer))
-(defun tq-queue               (tq) (car tq))
-(defun tq-process             (tq) (car (cdr tq)))
-(defun tq-buffer              (tq) (cdr (cdr tq)))
-
-;; The structure of `queue' is as follows
-;; ((question regexp closure . fn)
-;;  <other queue entries>)
-;; question: string to send to the process
-(defun tq-queue-head-question (tq) (car (car (tq-queue tq))))
-;; regexp: regular expression that matches the end of a response from
-;; the process
-(defun tq-queue-head-regexp   (tq) (car (cdr (car (tq-queue tq)))))
-;; closure: additional data to pass to the function
-(defun tq-queue-head-closure  (tq) (car (cdr (cdr (car (tq-queue tq))))))
-;; fn: function to call upon receiving a complete response from the
-;; process
-(defun tq-queue-head-fn       (tq) (cdr (cdr (cdr (car (tq-queue tq))))))
-
-;; Determine whether queue is empty
-(defun tq-queue-empty         (tq) (not (tq-queue tq)))
-
-;;; Core functionality
-
-;;;###autoload
-(defun tq-create (process)
-  "Create and return a transaction queue communicating with PROCESS.
-PROCESS should be a subprocess capable of sending and receiving
-streams of bytes.  It may be a local process, or it may be connected
-to a tcp server on another machine."
-  (let ((tq (cons nil (cons process
-			    (generate-new-buffer
-			     (concat " tq-temp-"
-				     (process-name process)))))))
-    (buffer-disable-undo (tq-buffer tq))
-    (set-process-filter process
-			`(lambda (proc string)
-			   (tq-filter ',tq string)))
-    tq))
-
-(defun tq-queue-add (tq question re closure fn)
-  (setcar tq (nconc (tq-queue tq)
-		    (cons (cons question (cons re (cons closure fn))) nil)))
-  'ok)
-
-(defun tq-queue-pop (tq)
-  (setcar tq (cdr (car tq)))
-  (let ((question (tq-queue-head-question tq)))
-    (condition-case nil
-	(process-send-string (tq-process tq) question)
-      (error nil)))
-  (null (car tq)))
-
-(defun tq-enqueue (tq question regexp closure fn &optional delay-question)
-  "Add a transaction to transaction queue TQ.
-This sends the string QUESTION to the process that TQ communicates with.
-
-When the corresponding answer comes back, we call FN with two
-arguments: CLOSURE, which may contain additional data that FN
-needs, and the answer to the question.
-
-REGEXP is a regular expression to match the entire answer;
-that's how we tell where the answer ends.
-
-If DELAY-QUESTION is non-nil, delay sending this question until
-the process has finished replying to any previous questions.
-This produces more reliable results with some processes."
-  (let ((sendp (or (not delay-question)
-		   (not (tq-queue tq)))))
-    (tq-queue-add tq (unless sendp question) regexp closure fn)
-    (when sendp
-      (process-send-string (tq-process tq) question))))
-
-(defun tq-close (tq)
-  "Shut down transaction queue TQ, terminating the process."
-  (delete-process (tq-process tq))
-  (kill-buffer (tq-buffer tq)))
-
-(defun tq-filter (tq string)
-  "Append STRING to the TQ's buffer; then process the new data."
-  (let ((buffer (tq-buffer tq)))
-    (when (buffer-live-p buffer)
-      (with-current-buffer buffer
-	(goto-char (point-max))
-	(insert string)
-	(tq-process-buffer tq)))))
-
-(defun tq-process-buffer (tq)
-  "Check TQ's buffer for the regexp at the head of the queue."
-  (let ((buffer (tq-buffer tq)))
-    (when (buffer-live-p buffer)
-      (set-buffer buffer)
-      (if (= 0 (buffer-size)) ()
-	(if (tq-queue-empty tq)
-	    (let ((buf (generate-new-buffer "*spurious*")))
-	      (copy-to-buffer buf (point-min) (point-max))
-	      (delete-region (point-min) (point))
-	      (pop-to-buffer buf nil)
-	      (error "Spurious communication from process %s, see buffer %s"
-		     (process-name (tq-process tq))
-		     (buffer-name buf)))
-	  (goto-char (point-min))
-	  (if (re-search-forward (tq-queue-head-regexp tq) nil t)
-	      (let ((answer (buffer-substring (point-min) (point))))
-		(delete-region (point-min) (point))
-		(unwind-protect
-		    (condition-case nil
-			(funcall (tq-queue-head-fn tq)
-				 (tq-queue-head-closure tq)
-				 answer)
-		      (error nil))
-		  (tq-queue-pop tq))
-		(tq-process-buffer tq))))))))
-
-(provide 'tq)
-
-;; arch-tag: 65dea08c-4edd-4cde-83a5-e8a15b993b79
-;;; tq.el ends here