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1 ;;; -*- Mode: Emacs-Lisp -*-
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2
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3 ;;; ilisp-rng.el --
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4
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5 ;;; This file is part of ILISP.
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6 ;;; Version: 5.7
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7 ;;;
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8 ;;; Copyright (C) 1990, 1991, 1992, 1993 Chris McConnell
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9 ;;; 1993, 1994 Ivan Vasquez
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10 ;;; 1994, 1995 Marco Antoniotti and Rick Busdiecker
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11 ;;;
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12 ;;; Other authors' names for which this Copyright notice also holds
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13 ;;; may appear later in this file.
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14 ;;;
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15 ;;; Send mail to 'ilisp-request@lehman.com' to be included in the
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16 ;;; ILISP mailing list. 'ilisp@lehman.com' is the general ILISP
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17 ;;; mailing list were bugs and improvements are discussed.
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18 ;;;
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19 ;;; ILISP is freely redistributable under the terms found in the file
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20 ;;; COPYING.
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21
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22
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23
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24 ;;;
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25 ;;; ILISP match ring.
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26 ;;;
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27 (defun match-ring (ring regexp start)
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28 "Return the index in RING of REGEXP starting at START."
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29 (let ((n 0)
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30 (len (ring-length ring)))
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31 (while (and (< n len)
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32 (not (string-match regexp (ring-ref ring n))))
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33 (setq n (1+ n)))
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34 (if (= n len)
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35 nil
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36 n)))
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37
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38 ;;;
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39 (defun lisp-match-ring (regexp string &optional no-insert)
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40 "Match REGEXP in the input-ring of the current buffer and set the
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41 ring variables to look like comint-previous-similar-input if found.
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42 If not found insert STRING, unless NO-INSERT."
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43 (let ((n (if regexp (match-ring (ilisp-get-input-ring) regexp 0))))
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44 (if n
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45 (let ((point (progn (comint-kill-input) (point))))
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46 (insert (ring-ref (ilisp-get-input-ring) n))
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47 (save-excursion
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48 (goto-char (+ point (length string)))
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49 (skip-chars-forward "^ \t\n\)")
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50 (setq point (point)))
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51 (push-mark point)
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52 (set-ilisp-input-ring-index n)
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53 (setq this-command 'comint-previous-similar-input
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54 comint-last-similar-string string)
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55 t)
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56 (if (and string (not no-insert))
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57 (progn (comint-kill-input) (insert string) t)
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58 nil))))
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