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55535639 | 1 | ;;; array.el --- array editing commands for GNU Emacs |
c0274f38 | 2 | |
0d30b337 TTN |
3 | ;; Copyright (C) 1987, 2000, 2002, 2003, 2004, |
4 | ;; 2005 Free Software Foundation, Inc. | |
9750e079 | 5 | |
e5167999 ER |
6 | ;; Author David M. Brown |
7 | ;; Maintainer: FSF | |
e9571d2a | 8 | ;; Keywords: extensions |
b1d6ae0b | 9 | |
b1d6ae0b JB |
10 | ;; This file is part of GNU Emacs. |
11 | ||
12 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
13 | ;; it under the terms of the GNU General Public License as published by | |
e5167999 | 14 | ;; the Free Software Foundation; either version 2, or (at your option) |
b1d6ae0b JB |
15 | ;; any later version. |
16 | ||
17 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ;; GNU General Public License for more details. | |
21 | ||
22 | ;; You should have received a copy of the GNU General Public License | |
b578f267 | 23 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
086add15 LK |
24 | ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
25 | ;; Boston, MA 02110-1301, USA. | |
b1d6ae0b | 26 | |
e5167999 ER |
27 | ;;; Commentary: |
28 | ||
e41b2db1 ER |
29 | ;; Commands for editing a buffer interpreted as a rectangular array |
30 | ;; or matrix of whitespace-separated strings. You specify the array | |
31 | ;; dimensions and some other parameters at startup time. | |
32 | ||
33 | ;; Written by dmb%morgoth@harvard.harvard.edu (address is old) | |
34 | ;; (David M. Brown at Goldberg-Zoino & Associates, Inc.) | |
35 | ;; Thanks to cph@kleph.ai.mit.edu for assistance | |
36 | ||
37 | ;; To do: | |
38 | ;; Smooth initialization process by grokking local variables list | |
39 | ;; at end of buffer or parsing buffer using whitespace as delimiters. | |
40 | ;; Make 'array-copy-column-right faster. | |
b1d6ae0b JB |
41 | |
42 | \f | |
e5167999 | 43 | ;;; Code: |
b1d6ae0b | 44 | |
41674a5a DL |
45 | (eval-when-compile |
46 | (defvar array-max-column) | |
47 | (defvar array-columns-per-line) | |
48 | (defvar array-buffer-column) | |
49 | (defvar array-line-length) | |
50 | (defvar array-buffer-line) | |
51 | (defvar array-lines-per-row) | |
52 | (defvar array-max-row) | |
53 | (defvar array-field-width) | |
54 | (defvar array-row) | |
55 | (defvar array-column) | |
56 | (defvar array-rows-numbered) | |
57 | (defvar array-copy-string) | |
58 | (defvar array-init-field) | |
59 | (defvar array-respect-tabs)) | |
60 | ||
b1d6ae0b | 61 | ;;; Internal information functions. |
71296446 | 62 | |
b1d6ae0b | 63 | (defun array-cursor-in-array-range () |
41674a5a | 64 | "Return t if the cursor is in a valid array cell. |
b1d6ae0b | 65 | Its ok to be on a row number line." |
41674a5a DL |
66 | (let ((columns-last-line (% array-max-column array-columns-per-line))) |
67 | ;; Requires array-buffer-line and array-buffer-column to be current. | |
b1d6ae0b JB |
68 | (not (or |
69 | ;; The cursor is too far to the right. | |
41674a5a | 70 | (>= array-buffer-column array-line-length) |
b1d6ae0b | 71 | ;; The cursor is below the last row. |
41674a5a | 72 | (>= array-buffer-line (* array-lines-per-row array-max-row)) |
b1d6ae0b JB |
73 | ;; The cursor is on the last line of the row, the line is smaller |
74 | ;; than the others, and the cursor is after the last array column | |
75 | ;; on the line. | |
41674a5a | 76 | (and (zerop (% (1+ array-buffer-line) array-lines-per-row)) |
b1d6ae0b | 77 | (not (zerop columns-last-line)) |
41674a5a | 78 | (>= array-buffer-column (* columns-last-line array-field-width))))))) |
b1d6ae0b JB |
79 | |
80 | (defun array-current-row () | |
81 | "Return the array row of the field in which the cursor is located." | |
41674a5a | 82 | ;; Requires array-buffer-line and array-buffer-column to be current. |
b1d6ae0b | 83 | (and (array-cursor-in-array-range) |
41674a5a | 84 | (1+ (floor array-buffer-line array-lines-per-row)))) |
b1d6ae0b JB |
85 | |
86 | (defun array-current-column () | |
87 | "Return the array column of the field in which the cursor is located." | |
41674a5a | 88 | ;; Requires array-buffer-line and array-buffer-column to be current. |
b1d6ae0b JB |
89 | (and (array-cursor-in-array-range) |
90 | ;; It's not okay to be on a row number line. | |
41674a5a DL |
91 | (not (and array-rows-numbered |
92 | (zerop (% array-buffer-line array-lines-per-row)))) | |
b1d6ae0b JB |
93 | (+ |
94 | ;; Array columns due to line differences. | |
41674a5a DL |
95 | (* array-columns-per-line |
96 | (if array-rows-numbered | |
97 | (1- (% array-buffer-line array-lines-per-row)) | |
98 | (% array-buffer-line array-lines-per-row))) | |
b1d6ae0b | 99 | ;; Array columns on the current line. |
41674a5a | 100 | (1+ (floor array-buffer-column array-field-width))))) |
b1d6ae0b JB |
101 | |
102 | (defun array-update-array-position (&optional a-row a-column) | |
41674a5a DL |
103 | "Set `array-row' and `array-column' to their current values. |
104 | Set them to the optional arguments A-ROW and A-COLUMN if those are supplied." | |
105 | ;; Requires that array-buffer-line and array-buffer-column be current. | |
b1d6ae0b JB |
106 | (setq array-row (or a-row (array-current-row)) |
107 | array-column (or a-column (array-current-column)))) | |
108 | ||
109 | (defun array-update-buffer-position () | |
41674a5a DL |
110 | "Set array-buffer-line and array-buffer-column to their current values." |
111 | (setq array-buffer-line (current-line) | |
112 | array-buffer-column (current-column))) | |
b1d6ae0b JB |
113 | |
114 | \f | |
115 | ||
116 | ;;; Information commands. | |
117 | ||
118 | (defun array-what-position () | |
119 | "Display the row and column in which the cursor is positioned." | |
120 | (interactive) | |
41674a5a DL |
121 | (let ((array-buffer-line (current-line)) |
122 | (array-buffer-column (current-column))) | |
123 | (message "Array row: %s Array column: %s" | |
4bf785ba KH |
124 | (prin1-to-string (array-current-row)) |
125 | (prin1-to-string (array-current-column))))) | |
b1d6ae0b JB |
126 | |
127 | (defun array-display-local-variables () | |
128 | "Display the current state of the local variables in the minibuffer." | |
129 | (interactive) | |
130 | (let ((buf (buffer-name (current-buffer)))) | |
131 | (with-output-to-temp-buffer "*Local Variables*" | |
132 | (buffer-disable-undo standard-output) | |
133 | (terpri) | |
134 | (princ (format " Buffer: %s\n\n" buf)) | |
135 | (princ (format " max-row: %s\n" | |
41674a5a | 136 | (prin1-to-string array-max-row))) |
b1d6ae0b | 137 | (princ (format " max-column: %s\n" |
41674a5a | 138 | (prin1-to-string array-max-column))) |
b1d6ae0b | 139 | (princ (format " columns-per-line: %s\n" |
41674a5a | 140 | (prin1-to-string array-columns-per-line))) |
b1d6ae0b | 141 | (princ (format " field-width: %s\n" |
41674a5a | 142 | (prin1-to-string array-field-width))) |
b1d6ae0b | 143 | (princ (format " rows-numbered: %s\n" |
41674a5a | 144 | (prin1-to-string array-rows-numbered))) |
b1d6ae0b | 145 | (princ (format " lines-per-row: %s\n" |
41674a5a | 146 | (prin1-to-string array-lines-per-row))) |
b1d6ae0b | 147 | (princ (format " line-length: %s\n" |
41674a5a | 148 | (prin1-to-string array-line-length)))))) |
b1d6ae0b JB |
149 | |
150 | \f | |
151 | ||
152 | ;;; Internal movement functions. | |
153 | ||
154 | (defun array-beginning-of-field (&optional go-there) | |
155 | "Return the column of the beginning of the current field. | |
156 | Optional argument GO-THERE, if non-nil, means go there too." | |
41674a5a DL |
157 | ;; Requires that array-buffer-column be current. |
158 | (let ((goal-column (- array-buffer-column (% array-buffer-column array-field-width)))) | |
b1d6ae0b JB |
159 | (if go-there |
160 | (move-to-column-untabify goal-column) | |
161 | goal-column))) | |
162 | ||
163 | (defun array-end-of-field (&optional go-there) | |
164 | "Return the column of the end of the current array field. | |
165 | If optional argument GO-THERE is non-nil, go there too." | |
41674a5a DL |
166 | ;; Requires that array-buffer-column be current. |
167 | (let ((goal-column (+ (- array-buffer-column (% array-buffer-column array-field-width)) | |
168 | array-field-width))) | |
b1d6ae0b JB |
169 | (if go-there |
170 | (move-to-column-untabify goal-column) | |
171 | goal-column))) | |
172 | ||
173 | (defun array-move-to-cell (a-row a-column) | |
41674a5a | 174 | "Move to array row A-ROW and array column A-COLUMN. |
b1d6ae0b | 175 | Leave point at the beginning of the field and return the new buffer column." |
41674a5a DL |
176 | (let ((goal-line (+ (* array-lines-per-row (1- a-row)) |
177 | (if array-rows-numbered 1 0) | |
178 | (floor (1- a-column) array-columns-per-line))) | |
179 | (goal-column (* array-field-width (% (1- a-column) array-columns-per-line)))) | |
b1d6ae0b JB |
180 | (goto-char (point-min)) |
181 | (forward-line goal-line) | |
182 | (move-to-column-untabify goal-column))) | |
183 | ||
184 | (defun array-move-to-row (a-row) | |
185 | "Move to array row A-ROW preserving the current array column. | |
186 | Leave point at the beginning of the field and return the new array row." | |
41674a5a DL |
187 | ;; Requires that array-buffer-line and array-buffer-column be current. |
188 | (let ((goal-line (+ (* array-lines-per-row (1- a-row)) | |
189 | (% array-buffer-line array-lines-per-row))) | |
190 | (goal-column (- array-buffer-column (% array-buffer-column array-field-width)))) | |
191 | (forward-line (- goal-line array-buffer-line)) | |
b1d6ae0b JB |
192 | (move-to-column-untabify goal-column) |
193 | a-row)) | |
194 | ||
195 | (defun array-move-to-column (a-column) | |
196 | "Move to array column A-COLUMN preserving the current array row. | |
197 | Leave point at the beginning of the field and return the new array column." | |
41674a5a DL |
198 | ;; Requires that array-buffer-line and array-buffer-column be current. |
199 | (let ((goal-line (+ (- array-buffer-line (% array-buffer-line array-lines-per-row)) | |
200 | (if array-rows-numbered 1 0) | |
201 | (floor (1- a-column) array-columns-per-line))) | |
202 | (goal-column (* array-field-width (% (1- a-column) array-columns-per-line)))) | |
203 | (forward-line (- goal-line array-buffer-line)) | |
b1d6ae0b JB |
204 | (move-to-column-untabify goal-column) |
205 | a-column)) | |
206 | ||
207 | (defun array-move-one-row (sign) | |
208 | "Move one array row in direction SIGN (1 or -1). | |
209 | Leave point at the beginning of the field and return the new array row. | |
210 | If requested to move beyond the array bounds, signal an error." | |
41674a5a | 211 | ;; Requires that array-buffer-line and array-buffer-column be current. |
b1d6ae0b JB |
212 | (let ((goal-column (array-beginning-of-field)) |
213 | (array-row (or (array-current-row) | |
41674a5a DL |
214 | (error "Cursor is not in a valid array cell")))) |
215 | (cond ((and (= array-row array-max-row) (= sign 1)) | |
216 | (error "End of array")) | |
b1d6ae0b | 217 | ((and (= array-row 1) (= sign -1)) |
41674a5a | 218 | (error "Beginning of array")) |
b1d6ae0b JB |
219 | (t |
220 | (progn | |
41674a5a | 221 | (forward-line (* sign array-lines-per-row)) |
b1d6ae0b JB |
222 | (move-to-column-untabify goal-column) |
223 | (+ array-row sign)))))) | |
224 | ||
225 | (defun array-move-one-column (sign) | |
226 | "Move one array column in direction SIGN (1 or -1). | |
227 | Leave point at the beginning of the field and return the new array column. | |
228 | If requested to move beyond the array bounds, signal an error." | |
41674a5a | 229 | ;; Requires that array-buffer-line and array-buffer-column be current. |
b1d6ae0b | 230 | (let ((array-column (or (array-current-column) |
41674a5a DL |
231 | (error "Cursor is not in a valid array cell")))) |
232 | (cond ((and (= array-column array-max-column) (= sign 1)) | |
233 | (error "End of array")) | |
b1d6ae0b | 234 | ((and (= array-column 1) (= sign -1)) |
41674a5a | 235 | (error "Beginning of array")) |
b1d6ae0b | 236 | (t |
41674a5a | 237 | (cond |
b1d6ae0b | 238 | ;; Going backward from first column on the line. |
41674a5a | 239 | ((and (= sign -1) (= 1 (% array-column array-columns-per-line))) |
b1d6ae0b JB |
240 | (forward-line -1) |
241 | (move-to-column-untabify | |
41674a5a | 242 | (* array-field-width (1- array-columns-per-line)))) |
b1d6ae0b | 243 | ;; Going forward from last column on the line. |
41674a5a | 244 | ((and (= sign 1) (zerop (% array-column array-columns-per-line))) |
b1d6ae0b JB |
245 | (forward-line 1)) |
246 | ;; Somewhere in the middle of the line. | |
247 | (t | |
248 | (move-to-column-untabify (+ (array-beginning-of-field) | |
41674a5a | 249 | (* array-field-width sign))))) |
b1d6ae0b JB |
250 | (+ array-column sign))))) |
251 | ||
252 | (defun array-normalize-cursor () | |
41674a5a DL |
253 | "Move the cursor to the first non-whitespace character in the field. |
254 | If necessary, scroll horizontally to keep the cursor in view." | |
b1d6ae0b | 255 | ;; Assumes point is at the beginning of the field. |
41674a5a | 256 | (let ((array-buffer-column (current-column))) |
b1d6ae0b JB |
257 | (skip-chars-forward " \t" |
258 | (1- (save-excursion (array-end-of-field t) (point)))) | |
259 | (array-maybe-scroll-horizontally))) | |
260 | ||
261 | (defun array-maybe-scroll-horizontally () | |
262 | "If necessary, scroll horizontally to keep the cursor in view." | |
263 | ;; This is only called from array-normalize-cursor so | |
41674a5a | 264 | ;; array-buffer-column will always be current. |
b1d6ae0b JB |
265 | (let ((w-hscroll (window-hscroll)) |
266 | (w-width (window-width))) | |
267 | (cond | |
41674a5a DL |
268 | ((and (>= array-buffer-column w-hscroll) |
269 | (<= array-buffer-column (+ w-hscroll w-width))) | |
b1d6ae0b JB |
270 | ;; It's already visible. Do nothing. |
271 | nil) | |
41674a5a | 272 | ((> array-buffer-column (+ w-hscroll w-width)) |
b1d6ae0b | 273 | ;; It's to the right. Scroll left. |
41674a5a | 274 | (scroll-left (- (- array-buffer-column w-hscroll) |
b1d6ae0b JB |
275 | (/ w-width 2)))) |
276 | (t | |
277 | ;; It's to the left. Scroll right. | |
41674a5a | 278 | (scroll-right (+ (- w-hscroll array-buffer-column) |
b1d6ae0b JB |
279 | (/ w-width 2))))))) |
280 | ||
281 | \f | |
282 | ||
283 | ;;; Movement commands. | |
284 | ||
285 | (defun array-next-row (&optional arg) | |
286 | "Move down one array row, staying in the current array column. | |
287 | If optional ARG is given, move down ARG array rows." | |
288 | (interactive "p") | |
41674a5a DL |
289 | (let ((array-buffer-line (current-line)) |
290 | (array-buffer-column (current-column))) | |
b1d6ae0b JB |
291 | (if (= (abs arg) 1) |
292 | (array-move-one-row arg) | |
293 | (array-move-to-row | |
294 | (limit-index (+ (or (array-current-row) | |
41674a5a | 295 | (error "Cursor is not in an array cell")) |
b1d6ae0b | 296 | arg) |
41674a5a | 297 | array-max-row)))) |
b1d6ae0b JB |
298 | (array-normalize-cursor)) |
299 | ||
300 | (defun array-previous-row (&optional arg) | |
301 | "Move up one array row, staying in the current array column. | |
302 | If optional ARG is given, move up ARG array rows." | |
303 | (interactive "p") | |
304 | (array-next-row (- arg))) | |
305 | ||
306 | (defun array-forward-column (&optional arg) | |
307 | "Move forward one field, staying in the current array row. | |
308 | If optional ARG is given, move forward ARG array columns. | |
309 | If necessary, keep the cursor in the window by scrolling right or left." | |
310 | (interactive "p") | |
41674a5a DL |
311 | (let ((array-buffer-line (current-line)) |
312 | (array-buffer-column (current-column))) | |
b1d6ae0b JB |
313 | (if (= (abs arg) 1) |
314 | (array-move-one-column arg) | |
315 | (array-move-to-column | |
316 | (limit-index (+ (or (array-current-column) | |
41674a5a | 317 | (error "Cursor is not in an array cell")) |
b1d6ae0b | 318 | arg) |
41674a5a | 319 | array-max-column)))) |
b1d6ae0b JB |
320 | (array-normalize-cursor)) |
321 | ||
322 | (defun array-backward-column (&optional arg) | |
323 | "Move backward one field, staying in the current array row. | |
324 | If optional ARG is given, move backward ARG array columns. | |
325 | If necessary, keep the cursor in the window by scrolling right or left." | |
326 | (interactive "p") | |
327 | (array-forward-column (- arg))) | |
328 | ||
329 | (defun array-goto-cell (a-row a-column) | |
330 | "Go to array row A-ROW and array column A-COLUMN." | |
331 | (interactive "nArray row: \nnArray column: ") | |
332 | (array-move-to-cell | |
41674a5a DL |
333 | (limit-index a-row array-max-row) |
334 | (limit-index a-column array-max-column)) | |
b1d6ae0b JB |
335 | (array-normalize-cursor)) |
336 | ||
337 | \f | |
338 | ||
339 | ;;; Internal copying functions. | |
340 | ||
341 | (defun array-field-string () | |
342 | "Return the field string at the current cursor location." | |
41674a5a | 343 | ;; Requires that array-buffer-column be current. |
b1d6ae0b JB |
344 | (buffer-substring |
345 | (save-excursion (array-beginning-of-field t) (point)) | |
346 | (save-excursion (array-end-of-field t) (point)))) | |
347 | ||
348 | (defun array-copy-once-vertically (sign) | |
349 | "Copy the current field into one array row in direction SIGN (1 or -1). | |
350 | Leave point at the beginning of the field and return the new array row. | |
351 | If requested to move beyond the array bounds, signal an error." | |
41674a5a | 352 | ;; Requires that array-buffer-line, array-buffer-column, and array-copy-string be current. |
b1d6ae0b JB |
353 | (let ((a-row (array-move-one-row sign))) |
354 | (let ((inhibit-quit t)) | |
355 | (delete-region (point) (save-excursion (array-end-of-field t) (point))) | |
41674a5a DL |
356 | (insert array-copy-string)) |
357 | (move-to-column array-buffer-column) | |
b1d6ae0b JB |
358 | a-row)) |
359 | ||
360 | (defun array-copy-once-horizontally (sign) | |
361 | "Copy the current field into one array column in direction SIGN (1 or -1). | |
362 | Leave point at the beginning of the field and return the new array column. | |
363 | If requested to move beyond the array bounds, signal an error." | |
41674a5a | 364 | ;; Requires that array-buffer-line, array-buffer-column, and array-copy-string be current. |
b1d6ae0b JB |
365 | (let ((a-column (array-move-one-column sign))) |
366 | (array-update-buffer-position) | |
367 | (let ((inhibit-quit t)) | |
368 | (delete-region (point) (save-excursion (array-end-of-field t) (point))) | |
41674a5a DL |
369 | (insert array-copy-string)) |
370 | (move-to-column array-buffer-column) | |
b1d6ae0b JB |
371 | a-column)) |
372 | ||
373 | (defun array-copy-to-row (a-row) | |
374 | "Copy the current field vertically into every cell up to and including A-ROW. | |
375 | Leave point at the beginning of the field." | |
41674a5a DL |
376 | ;; Requires that array-buffer-line, array-buffer-column, array-row, and |
377 | ;; array-copy-string be current. | |
b1d6ae0b JB |
378 | (let* ((num (- a-row array-row)) |
379 | (count (abs num)) | |
380 | (sign (if (zerop count) () (/ num count)))) | |
381 | (while (> count 0) | |
382 | (array-move-one-row sign) | |
383 | (array-update-buffer-position) | |
384 | (let ((inhibit-quit t)) | |
385 | (delete-region (point) (save-excursion (array-end-of-field t) (point))) | |
41674a5a DL |
386 | (insert array-copy-string)) |
387 | (move-to-column array-buffer-column) | |
b1d6ae0b | 388 | (setq count (1- count))))) |
71296446 | 389 | |
b1d6ae0b | 390 | (defun array-copy-to-column (a-column) |
41674a5a DL |
391 | "Copy current field horizontally into every cell up to and including A-COLUMN. |
392 | Leave point at the beginning of the field." | |
393 | ;; Requires that array-buffer-line, array-buffer-column, array-column, and | |
394 | ;; array-copy-string be current. | |
b1d6ae0b JB |
395 | (let* ((num (- a-column array-column)) |
396 | (count (abs num)) | |
397 | (sign (if (zerop count) () (/ num count)))) | |
398 | (while (> count 0) | |
399 | (array-move-one-column sign) | |
400 | (array-update-buffer-position) | |
401 | (let ((inhibit-quit t)) | |
402 | (delete-region (point) (save-excursion (array-end-of-field t) (point))) | |
41674a5a DL |
403 | (insert array-copy-string)) |
404 | (move-to-column array-buffer-column) | |
b1d6ae0b JB |
405 | (setq count (1- count))))) |
406 | ||
407 | (defun array-copy-to-cell (a-row a-column) | |
408 | "Copy the current field into the cell at A-ROW, A-COLUMN. | |
409 | Leave point at the beginning of the field." | |
41674a5a | 410 | ;; Requires that array-copy-string be current. |
b1d6ae0b JB |
411 | (array-move-to-cell a-row a-column) |
412 | (array-update-buffer-position) | |
413 | (delete-region (point) (save-excursion (array-end-of-field t) (point))) | |
41674a5a DL |
414 | (insert array-copy-string) |
415 | (move-to-column array-buffer-column)) | |
b1d6ae0b JB |
416 | |
417 | \f | |
418 | ||
419 | ;;; Commands for copying. | |
420 | ||
421 | (defun array-copy-down (&optional arg) | |
422 | "Copy the current field one array row down. | |
423 | If optional ARG is given, copy down through ARG array rows." | |
424 | (interactive "p") | |
41674a5a DL |
425 | (let* ((array-buffer-line (current-line)) |
426 | (array-buffer-column (current-column)) | |
b1d6ae0b | 427 | (array-row (or (array-current-row) |
41674a5a DL |
428 | (error "Cursor is not in a valid array cell"))) |
429 | (array-copy-string (array-field-string))) | |
b1d6ae0b JB |
430 | (if (= (abs arg) 1) |
431 | (array-copy-once-vertically arg) | |
432 | (array-copy-to-row | |
41674a5a | 433 | (limit-index (+ array-row arg) array-max-row)))) |
b1d6ae0b JB |
434 | (array-normalize-cursor)) |
435 | ||
436 | (defun array-copy-up (&optional arg) | |
437 | "Copy the current field one array row up. | |
438 | If optional ARG is given, copy up through ARG array rows." | |
439 | (interactive "p") | |
440 | (array-copy-down (- arg))) | |
441 | ||
442 | (defun array-copy-forward (&optional arg) | |
443 | "Copy the current field one array column to the right. | |
444 | If optional ARG is given, copy through ARG array columns to the right." | |
445 | (interactive "p") | |
41674a5a DL |
446 | (let* ((array-buffer-line (current-line)) |
447 | (array-buffer-column (current-column)) | |
b1d6ae0b | 448 | (array-column (or (array-current-column) |
41674a5a DL |
449 | (error "Cursor is not in a valid array cell"))) |
450 | (array-copy-string (array-field-string))) | |
b1d6ae0b JB |
451 | (if (= (abs arg) 1) |
452 | (array-copy-once-horizontally arg) | |
453 | (array-copy-to-column | |
41674a5a | 454 | (limit-index (+ array-column arg) array-max-column)))) |
b1d6ae0b JB |
455 | (array-normalize-cursor)) |
456 | ||
457 | (defun array-copy-backward (&optional arg) | |
458 | "Copy the current field one array column to the left. | |
459 | If optional ARG is given, copy through ARG array columns to the left." | |
460 | (interactive "p") | |
461 | (array-copy-forward (- arg))) | |
462 | ||
463 | (defun array-copy-column-forward (&optional arg) | |
464 | "Copy the entire current column in to the column to the right. | |
465 | If optional ARG is given, copy through ARG array columns to the right." | |
466 | (interactive "p") | |
467 | (array-update-buffer-position) | |
468 | (array-update-array-position) | |
469 | (if (not array-column) | |
41674a5a | 470 | (error "Cursor is not in a valid array cell")) |
b1d6ae0b JB |
471 | (message "Working...") |
472 | (let ((this-row 0)) | |
41674a5a | 473 | (while (< this-row array-max-row) |
b1d6ae0b JB |
474 | (setq this-row (1+ this-row)) |
475 | (array-move-to-cell this-row array-column) | |
476 | (array-update-buffer-position) | |
41674a5a | 477 | (let ((array-copy-string (array-field-string))) |
b1d6ae0b JB |
478 | (if (= (abs arg) 1) |
479 | (array-copy-once-horizontally arg) | |
480 | (array-copy-to-column | |
41674a5a | 481 | (limit-index (+ array-column arg) array-max-column)))))) |
b1d6ae0b JB |
482 | (message "Working...done") |
483 | (array-move-to-row array-row) | |
484 | (array-normalize-cursor)) | |
485 | ||
486 | (defun array-copy-column-backward (&optional arg) | |
487 | "Copy the entire current column one column to the left. | |
488 | If optional ARG is given, copy through ARG columns to the left." | |
489 | (interactive "p") | |
490 | (array-copy-column-forward (- arg))) | |
491 | ||
492 | (defun array-copy-row-down (&optional arg) | |
493 | "Copy the entire current row one row down. | |
494 | If optional ARG is given, copy through ARG rows down." | |
495 | (interactive "p") | |
496 | (array-update-buffer-position) | |
497 | (array-update-array-position) | |
498 | (if (not array-row) | |
41674a5a | 499 | (error "Cursor is not in a valid array cell")) |
b1d6ae0b JB |
500 | (cond |
501 | ((and (= array-row 1) (= arg -1)) | |
41674a5a DL |
502 | (error "Beginning of array")) |
503 | ((and (= array-row array-max-row) (= arg 1)) | |
504 | (error "End of array")) | |
b1d6ae0b | 505 | (t |
41674a5a | 506 | (let* ((array-copy-string |
b1d6ae0b JB |
507 | (buffer-substring |
508 | (save-excursion (array-move-to-cell array-row 1) | |
509 | (point)) | |
41674a5a | 510 | (save-excursion (array-move-to-cell array-row array-max-column) |
b1d6ae0b JB |
511 | (forward-line 1) |
512 | (point)))) | |
513 | (this-row array-row) | |
41674a5a | 514 | (goal-row (limit-index (+ this-row arg) array-max-row)) |
b1d6ae0b JB |
515 | (num (- goal-row this-row)) |
516 | (count (abs num)) | |
517 | (sign (if (not (zerop count)) (/ num count)))) | |
518 | (while (> count 0) | |
519 | (setq this-row (+ this-row sign)) | |
520 | (array-move-to-cell this-row 1) | |
521 | (let ((inhibit-quit t)) | |
522 | (delete-region (point) | |
523 | (save-excursion | |
41674a5a | 524 | (array-move-to-cell this-row array-max-column) |
b1d6ae0b JB |
525 | (forward-line 1) |
526 | (point))) | |
41674a5a | 527 | (insert array-copy-string)) |
b1d6ae0b JB |
528 | (setq count (1- count))) |
529 | (array-move-to-cell goal-row (or array-column 1))))) | |
530 | (array-normalize-cursor)) | |
531 | ||
532 | (defun array-copy-row-up (&optional arg) | |
533 | "Copy the entire current array row into the row above. | |
534 | If optional ARG is given, copy through ARG rows up." | |
535 | (interactive "p") | |
536 | (array-copy-row-down (- arg))) | |
537 | ||
538 | (defun array-fill-rectangle () | |
539 | "Copy the field at mark into every cell between mark and point." | |
540 | (interactive) | |
541 | ;; Bind arguments. | |
542 | (array-update-buffer-position) | |
543 | (let ((p-row (or (array-current-row) | |
41674a5a | 544 | (error "Cursor is not in a valid array cell"))) |
b1d6ae0b | 545 | (p-column (or (array-current-column) |
41674a5a | 546 | (error "Cursor is not in a valid array cell"))) |
b1d6ae0b JB |
547 | (m-row |
548 | (save-excursion | |
549 | (exchange-point-and-mark) | |
550 | (array-update-buffer-position) | |
551 | (or (array-current-row) | |
41674a5a DL |
552 | (error "Mark is not in a valid array cell")))) |
553 | (m-column | |
b1d6ae0b JB |
554 | (save-excursion |
555 | (exchange-point-and-mark) | |
556 | (array-update-buffer-position) | |
557 | (or (array-current-column) | |
41674a5a | 558 | (error "Mark is not in a valid array cell"))))) |
b1d6ae0b JB |
559 | (message "Working...") |
560 | (let ((top-row (min m-row p-row)) | |
561 | (bottom-row (max m-row p-row)) | |
562 | (left-column (min m-column p-column)) | |
563 | (right-column (max m-column p-column))) | |
564 | ;; Do the first row. | |
41674a5a | 565 | (let ((array-copy-string |
b1d6ae0b JB |
566 | (save-excursion |
567 | (array-move-to-cell m-row m-column) | |
568 | (array-update-buffer-position) | |
569 | (array-field-string)))) | |
570 | (array-copy-to-cell top-row left-column) | |
571 | (array-update-array-position top-row left-column) | |
572 | (array-update-buffer-position) | |
573 | (array-copy-to-column right-column)) | |
574 | ;; Do the rest of the rows. | |
575 | (array-move-to-cell top-row left-column) | |
41674a5a | 576 | (let ((array-copy-string |
b1d6ae0b JB |
577 | (buffer-substring |
578 | (point) | |
579 | (save-excursion | |
580 | (array-move-to-cell top-row right-column) | |
41674a5a | 581 | (setq array-buffer-column (current-column)) |
b1d6ae0b JB |
582 | (array-end-of-field t) |
583 | (point)))) | |
584 | (this-row top-row)) | |
585 | (while (/= this-row bottom-row) | |
586 | (setq this-row (1+ this-row)) | |
587 | (array-move-to-cell this-row left-column) | |
588 | (let ((inhibit-quit t)) | |
589 | (delete-region | |
590 | (point) | |
591 | (save-excursion | |
592 | (array-move-to-cell this-row right-column) | |
41674a5a | 593 | (setq array-buffer-column (current-column)) |
b1d6ae0b JB |
594 | (array-end-of-field t) |
595 | (point))) | |
41674a5a | 596 | (insert array-copy-string))))) |
b1d6ae0b JB |
597 | (message "Working...done") |
598 | (array-goto-cell p-row p-column))) | |
599 | ||
600 | \f | |
601 | ||
602 | ;;; Reconfiguration of the array. | |
603 | ||
604 | (defun array-make-template () | |
605 | "Create the template of an array." | |
606 | (interactive) | |
41674a5a | 607 | ;; If there is a conflict between array-field-width and init-string, resolve it. |
b1d6ae0b JB |
608 | (let ((check t) |
609 | (len)) | |
610 | (while check | |
3981e5b5 | 611 | (setq array-init-field (read-string "Initial field value: ")) |
41674a5a DL |
612 | (setq len (length array-init-field)) |
613 | (if (/= len array-field-width) | |
b1d6ae0b | 614 | (if (y-or-n-p (format "Change field width to %d? " len)) |
41674a5a | 615 | (progn (setq array-field-width len) |
b1d6ae0b JB |
616 | (setq check nil))) |
617 | (setq check nil)))) | |
618 | (goto-char (point-min)) | |
619 | (message "Working...") | |
620 | (let ((this-row 1)) | |
621 | ;; Loop through the rows. | |
41674a5a DL |
622 | (while (<= this-row array-max-row) |
623 | (if array-rows-numbered | |
b1d6ae0b JB |
624 | (insert (format "%d:\n" this-row))) |
625 | (let ((this-column 1)) | |
626 | ;; Loop through the columns. | |
41674a5a DL |
627 | (while (<= this-column array-max-column) |
628 | (insert array-init-field) | |
629 | (if (and (zerop (% this-column array-columns-per-line)) | |
630 | (/= this-column array-max-column)) | |
b1d6ae0b JB |
631 | (newline)) |
632 | (setq this-column (1+ this-column)))) | |
633 | (setq this-row (1+ this-row)) | |
634 | (newline))) | |
635 | (message "Working...done") | |
636 | (array-goto-cell 1 1)) | |
637 | ||
638 | (defun array-reconfigure-rows (new-columns-per-line new-rows-numbered) | |
41674a5a DL |
639 | "Reconfigure the state of `array-rows-numbered' and `array-columns-per-line'. |
640 | NEW-COLUMNS-PER-LINE is the desired value of `array-columns-per-line' and | |
b1d6ae0b | 641 | NEW-ROWS-NUMBERED (a character, either ?y or ?n) is the desired value |
26cf3f33 | 642 | of `array-rows-numbered'." |
b1d6ae0b JB |
643 | (interactive "nColumns per line: \ncRows numbered? (y or n) ") |
644 | ;; Check on new-columns-per-line | |
645 | (let ((check t)) | |
646 | (while check | |
647 | (if (and (>= new-columns-per-line 1) | |
41674a5a | 648 | (<= new-columns-per-line array-max-column)) |
b1d6ae0b JB |
649 | (setq check nil) |
650 | (setq new-columns-per-line | |
027a4b6b | 651 | (string-to-number |
3981e5b5 | 652 | (read-string |
41674a5a | 653 | (format "Columns per line (1 - %d): " array-max-column))))))) |
b1d6ae0b JB |
654 | ;; Check on new-rows-numbered. It has to be done this way |
655 | ;; because interactive does not have y-or-n-p. | |
656 | (cond | |
657 | ((eq new-rows-numbered ?y) | |
658 | (setq new-rows-numbered t)) | |
659 | ((eq new-rows-numbered ?n) | |
660 | (setq new-rows-numbered nil)) | |
661 | (t | |
662 | (setq new-rows-numbered (y-or-n-p "Rows numbered? ")))) | |
663 | (message "Working...") | |
664 | (array-update-buffer-position) | |
665 | (let* ((main-buffer (buffer-name (current-buffer))) | |
18bf4ad8 | 666 | (temp-buffer (generate-new-buffer " *Array*")) |
41674a5a DL |
667 | (temp-max-row array-max-row) |
668 | (temp-max-column array-max-column) | |
669 | (old-rows-numbered array-rows-numbered) | |
670 | (old-columns-per-line array-columns-per-line) | |
671 | (old-lines-per-row array-lines-per-row) | |
672 | (old-field-width array-field-width) | |
673 | (old-line-length array-line-length) | |
b1d6ae0b JB |
674 | (this-row 1)) |
675 | (array-update-array-position) | |
676 | ;; Do the cutting in a temporary buffer. | |
677 | (copy-to-buffer temp-buffer (point-min) (point-max)) | |
678 | (set-buffer temp-buffer) | |
679 | (goto-char (point-min)) | |
680 | (while (<= this-row temp-max-row) | |
681 | ;; Deal with row number. | |
682 | (cond | |
683 | ((or (and old-rows-numbered new-rows-numbered) | |
684 | (and (not old-rows-numbered) (not new-rows-numbered))) | |
685 | ;; Nothing is changed. | |
686 | ()) | |
687 | ((and old-rows-numbered (not new-rows-numbered)) | |
688 | ;; Delete the row number. | |
689 | (kill-line 1)) | |
690 | (t | |
691 | ;; Add the row number. | |
cc94298a | 692 | (insert (format "%d:\n" this-row)))) |
b1d6ae0b JB |
693 | ;; Deal with the array columns in this row. |
694 | (cond | |
695 | ((= old-columns-per-line new-columns-per-line) | |
696 | ;; Nothing is changed. Go to the next row. | |
697 | (forward-line (- old-lines-per-row (if old-rows-numbered 1 0)))) | |
698 | (t | |
699 | ;; First expand the row. Then cut it up into new pieces. | |
700 | (let ((newlines-to-be-removed | |
701 | (floor (1- temp-max-column) old-columns-per-line)) | |
702 | (newlines-removed 0) | |
703 | (newlines-to-be-added | |
704 | (floor (1- temp-max-column) new-columns-per-line)) | |
705 | (newlines-added 0)) | |
706 | (while (< newlines-removed newlines-to-be-removed) | |
707 | (move-to-column-untabify | |
708 | (* (1+ newlines-removed) old-line-length)) | |
709 | (kill-line 1) | |
710 | (setq newlines-removed (1+ newlines-removed))) | |
711 | (beginning-of-line) | |
712 | (while (< newlines-added newlines-to-be-added) | |
713 | (move-to-column-untabify (* old-field-width new-columns-per-line)) | |
714 | (newline) | |
715 | (setq newlines-added (1+ newlines-added))) | |
716 | (forward-line 1)))) | |
717 | (setq this-row (1+ this-row))) | |
718 | (let ((inhibit-quit t)) | |
719 | (set-buffer main-buffer) | |
720 | (erase-buffer) | |
26cf3f33 | 721 | (insert-buffer-substring temp-buffer) |
b1d6ae0b | 722 | ;; Update local variables. |
41674a5a DL |
723 | (setq array-columns-per-line new-columns-per-line) |
724 | (setq array-rows-numbered new-rows-numbered) | |
725 | (setq array-line-length (* old-field-width new-columns-per-line)) | |
726 | (setq array-lines-per-row | |
9cd77daa PE |
727 | (+ (floor (1- temp-max-column) new-columns-per-line) |
728 | (if new-rows-numbered 2 1))) | |
b1d6ae0b JB |
729 | (array-goto-cell (or array-row 1) (or array-column 1))) |
730 | (kill-buffer temp-buffer)) | |
731 | (message "Working...done")) | |
732 | ||
733 | (defun array-expand-rows () | |
734 | "Expand the rows so each fits on one line and remove row numbers." | |
735 | (interactive) | |
41674a5a | 736 | (array-reconfigure-rows array-max-column ?n)) |
b1d6ae0b JB |
737 | |
738 | \f | |
739 | ||
740 | ;;; Utilities. | |
741 | ||
742 | (defun limit-index (index limit) | |
743 | (cond ((< index 1) 1) | |
744 | ((> index limit) limit) | |
745 | (t index))) | |
746 | ||
b1d6ae0b | 747 | (defun xor (pred1 pred2) |
41674a5a | 748 | "Return the logical exclusive or of predicates PRED1 and PRED2." |
b1d6ae0b JB |
749 | (and (or pred1 pred2) |
750 | (not (and pred1 pred2)))) | |
751 | ||
752 | (defun current-line () | |
41674a5a | 753 | "Return the current buffer line at point. The first line is 0." |
b1d6ae0b JB |
754 | (save-excursion |
755 | (beginning-of-line) | |
756 | (count-lines (point-min) (point)))) | |
757 | ||
758 | (defun move-to-column-untabify (column) | |
759 | "Move to COLUMN on the current line, untabifying if necessary. | |
760 | Return COLUMN." | |
761 | (or (and (= column (move-to-column column)) | |
762 | column) | |
763 | ;; There is a tab in the way. | |
41674a5a DL |
764 | (if array-respect-tabs |
765 | (error "There is a TAB character in the way") | |
b1d6ae0b JB |
766 | (progn |
767 | (untabify-backward) | |
768 | (move-to-column column))))) | |
769 | ||
770 | (defun untabify-backward () | |
26cf3f33 | 771 | "Untabify the preceding TAB." |
b1d6ae0b JB |
772 | (save-excursion |
773 | (let ((start (point))) | |
774 | (backward-char 1) | |
775 | (untabify (point) start)))) | |
776 | ||
777 | \f | |
778 | ||
779 | ;;; Array mode. | |
780 | ||
41674a5a | 781 | (defvar array-mode-map nil |
b1d6ae0b JB |
782 | "Keymap used in array mode.") |
783 | ||
784 | (if array-mode-map | |
785 | () | |
786 | (setq array-mode-map (make-keymap)) | |
787 | ;; Bind keys. | |
788 | (define-key array-mode-map "\M-ad" 'array-display-local-variables) | |
789 | (define-key array-mode-map "\M-am" 'array-make-template) | |
790 | (define-key array-mode-map "\M-ae" 'array-expand-rows) | |
791 | (define-key array-mode-map "\M-ar" 'array-reconfigure-rows) | |
792 | (define-key array-mode-map "\M-a=" 'array-what-position) | |
793 | (define-key array-mode-map "\M-ag" 'array-goto-cell) | |
794 | (define-key array-mode-map "\M-af" 'array-fill-rectangle) | |
795 | (define-key array-mode-map "\C-n" 'array-next-row) | |
796 | (define-key array-mode-map "\C-p" 'array-previous-row) | |
797 | (define-key array-mode-map "\C-f" 'array-forward-column) | |
798 | (define-key array-mode-map "\C-b" 'array-backward-column) | |
799 | (define-key array-mode-map "\M-n" 'array-copy-down) | |
800 | (define-key array-mode-map "\M-p" 'array-copy-up) | |
801 | (define-key array-mode-map "\M-f" 'array-copy-forward) | |
802 | (define-key array-mode-map "\M-b" 'array-copy-backward) | |
803 | (define-key array-mode-map "\M-\C-n" 'array-copy-row-down) | |
804 | (define-key array-mode-map "\M-\C-p" 'array-copy-row-up) | |
805 | (define-key array-mode-map "\M-\C-f" 'array-copy-column-forward) | |
806 | (define-key array-mode-map "\M-\C-b" 'array-copy-column-backward)) | |
807 | ||
808 | (put 'array-mode 'mode-class 'special) | |
809 | ||
499bfd5f | 810 | ;;;###autoload |
b1d6ae0b JB |
811 | (defun array-mode () |
812 | "Major mode for editing arrays. | |
813 | ||
814 | Array mode is a specialized mode for editing arrays. An array is | |
815 | considered to be a two-dimensional set of strings. The strings are | |
816 | NOT recognized as integers or real numbers. | |
817 | ||
41674a5a | 818 | The array MUST reside at the top of the buffer. |
b1d6ae0b JB |
819 | |
820 | TABs are not respected, and may be converted into spaces at any time. | |
26cf3f33 | 821 | Setting the variable `array-respect-tabs' to non-nil will prevent TAB conversion, |
b1d6ae0b JB |
822 | but will cause many functions to give errors if they encounter one. |
823 | ||
824 | Upon entering array mode, you will be prompted for the values of | |
825 | several variables. Others will be calculated based on the values you | |
246e8695 | 826 | supply. These variables are all local to the buffer. Other buffer |
b1d6ae0b JB |
827 | in array mode may have different values assigned to the variables. |
828 | The variables are: | |
829 | ||
830 | Variables you assign: | |
41674a5a DL |
831 | array-max-row: The number of rows in the array. |
832 | array-max-column: The number of columns in the array. | |
833 | array-columns-per-line: The number of columns in the array per line of buffer. | |
834 | array-field-width: The width of each field, in characters. | |
835 | array-rows-numbered: A logical variable describing whether to ignore | |
b1d6ae0b JB |
836 | row numbers in the buffer. |
837 | ||
838 | Variables which are calculated: | |
41674a5a DL |
839 | array-line-length: The number of characters in a buffer line. |
840 | array-lines-per-row: The number of buffer lines used to display each row. | |
b1d6ae0b JB |
841 | |
842 | The following commands are available (an asterisk indicates it may | |
843 | take a numeric prefix argument): | |
844 | ||
845 | * \\<array-mode-map>\\[array-forward-column] Move forward one column. | |
846 | * \\[array-backward-column] Move backward one column. | |
847 | * \\[array-next-row] Move down one row. | |
848 | * \\[array-previous-row] Move up one row. | |
849 | ||
850 | * \\[array-copy-forward] Copy the current field into the column to the right. | |
851 | * \\[array-copy-backward] Copy the current field into the column to the left. | |
852 | * \\[array-copy-down] Copy the current field into the row below. | |
853 | * \\[array-copy-up] Copy the current field into the row above. | |
854 | ||
855 | * \\[array-copy-column-forward] Copy the current column into the column to the right. | |
856 | * \\[array-copy-column-backward] Copy the current column into the column to the left. | |
857 | * \\[array-copy-row-down] Copy the current row into the row below. | |
858 | * \\[array-copy-row-up] Copy the current row into the row above. | |
859 | ||
860 | \\[array-fill-rectangle] Copy the field at mark into every cell with row and column | |
861 | between that of point and mark. | |
862 | ||
863 | \\[array-what-position] Display the current array row and column. | |
864 | \\[array-goto-cell] Go to a particular array cell. | |
865 | ||
866 | \\[array-make-template] Make a template for a new array. | |
867 | \\[array-reconfigure-rows] Reconfigure the array. | |
868 | \\[array-expand-rows] Expand the array (remove row numbers and | |
869 | newlines inside rows) | |
870 | ||
871 | \\[array-display-local-variables] Display the current values of local variables. | |
872 | ||
873 | Entering array mode calls the function `array-mode-hook'." | |
874 | ||
875 | (interactive) | |
e3e4b1f2 | 876 | (kill-all-local-variables) |
b1d6ae0b | 877 | ;; Number of rows in the array. |
41674a5a | 878 | (make-local-variable 'array-max-row) |
b1d6ae0b | 879 | ;; Number of columns in the array. |
41674a5a | 880 | (make-local-variable 'array-max-column) |
b1d6ae0b | 881 | ;; Number of array columns per line. |
41674a5a | 882 | (make-local-variable 'array-columns-per-line) |
b1d6ae0b | 883 | ;; Width of a field in the array. |
41674a5a | 884 | (make-local-variable 'array-field-width) |
b1d6ae0b | 885 | ;; Are rows numbered in the buffer? |
41674a5a | 886 | (make-local-variable 'array-rows-numbered) |
b1d6ae0b | 887 | ;; Length of a line in the array. |
41674a5a | 888 | (make-local-variable 'array-line-length) |
b1d6ae0b | 889 | ;; Number of lines per array row. |
41674a5a | 890 | (make-local-variable 'array-lines-per-row) |
b1d6ae0b | 891 | ;; Current line number of point in the buffer. |
41674a5a | 892 | (make-local-variable 'array-buffer-line) |
b1d6ae0b | 893 | ;; Current column number of point in the buffer. |
41674a5a | 894 | (make-local-variable 'array-buffer-column) |
b1d6ae0b JB |
895 | ;; Current array row location of point. |
896 | (make-local-variable 'array-row) | |
897 | ;; Current array column location of point. | |
898 | (make-local-variable 'array-column) | |
899 | ;; Current field string being copied. | |
41674a5a | 900 | (make-local-variable 'array-copy-string) |
b1d6ae0b | 901 | ;; Should TAB conversion be prevented? |
41674a5a DL |
902 | (make-local-variable 'array-respect-tabs) |
903 | (setq array-respect-tabs nil) | |
b1d6ae0b JB |
904 | (array-init-local-variables) |
905 | (setq major-mode 'array-mode) | |
906 | (setq mode-name "Array") | |
a838308c | 907 | (force-mode-line-update) |
7fbc46a0 | 908 | (make-local-variable 'truncate-lines) |
b1d6ae0b | 909 | (setq truncate-lines t) |
5e5e5d42 | 910 | (setq overwrite-mode 'overwrite-mode-textual) |
b1d6ae0b | 911 | (use-local-map array-mode-map) |
e3e4b1f2 | 912 | (run-mode-hooks 'array-mode-hook)) |
b1d6ae0b JB |
913 | |
914 | \f | |
915 | ||
916 | ;;; Initialization functions. These are not interactive. | |
917 | ||
918 | (defun array-init-local-variables () | |
41674a5a | 919 | "Initialize the variables associated with the array in this buffer." |
b1d6ae0b JB |
920 | (array-init-max-row) |
921 | (array-init-max-column) | |
922 | (array-init-columns-per-line) | |
923 | (array-init-field-width) | |
924 | (array-init-rows-numbered) | |
925 | (array-init-line-length) | |
926 | (array-init-lines-per-row) | |
927 | (message "")) | |
928 | ||
929 | (defun array-init-max-row (&optional arg) | |
41674a5a DL |
930 | "Initialize the value of `array-max-row'." |
931 | (setq array-max-row | |
3981e5b5 | 932 | (or arg (string-to-number (read-string "Number of array rows: "))))) |
b1d6ae0b JB |
933 | |
934 | (defun array-init-max-column (&optional arg) | |
41674a5a DL |
935 | "Initialize the value of `array-max-column'." |
936 | (setq array-max-column | |
3981e5b5 | 937 | (or arg (string-to-number (read-string "Number of array columns: "))))) |
b1d6ae0b JB |
938 | |
939 | (defun array-init-columns-per-line (&optional arg) | |
41674a5a DL |
940 | "Initialize the value of `array-columns-per-line'." |
941 | (setq array-columns-per-line | |
3981e5b5 | 942 | (or arg (string-to-number (read-string "Array columns per line: "))))) |
b1d6ae0b JB |
943 | |
944 | (defun array-init-field-width (&optional arg) | |
41674a5a DL |
945 | "Initialize the value of `array-field-width'." |
946 | (setq array-field-width | |
3981e5b5 | 947 | (or arg (string-to-number (read-string "Field width: "))))) |
b1d6ae0b JB |
948 | |
949 | (defun array-init-rows-numbered (&optional arg) | |
41674a5a DL |
950 | "Initialize the value of `array-rows-numbered'." |
951 | (setq array-rows-numbered | |
b1d6ae0b JB |
952 | (or arg (y-or-n-p "Rows numbered? ")))) |
953 | ||
954 | (defun array-init-line-length (&optional arg) | |
41674a5a DL |
955 | "Initialize the value of `array-line-length'." |
956 | (setq array-line-length | |
b1d6ae0b | 957 | (or arg |
41674a5a | 958 | (* array-field-width array-columns-per-line)))) |
b1d6ae0b JB |
959 | |
960 | (defun array-init-lines-per-row (&optional arg) | |
41674a5a DL |
961 | "Initialize the value of `array-lines-per-row'." |
962 | (setq array-lines-per-row | |
b1d6ae0b | 963 | (or arg |
41674a5a DL |
964 | (+ (floor (1- array-max-column) array-columns-per-line) |
965 | (if array-rows-numbered 2 1))))) | |
c0274f38 | 966 | |
bcc7f26d KH |
967 | (provide 'array) |
968 | ||
ab5796a9 | 969 | ;;; arch-tag: 0086605d-79fe-4a1a-992a-456417261f80 |
c0274f38 | 970 | ;;; array.el ends here |