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c0274f38 ER |
1 | ;;; array.el --- array editing commands for Gnu Emacs |
2 | ||
41674a5a | 3 | ;; Copyright (C) 1987, 2000 Free Software Foundation, Inc. |
9750e079 | 4 | |
e5167999 ER |
5 | ;; Author David M. Brown |
6 | ;; Maintainer: FSF | |
e9571d2a | 7 | ;; Keywords: extensions |
b1d6ae0b | 8 | |
b1d6ae0b JB |
9 | ;; This file is part of GNU Emacs. |
10 | ||
11 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
12 | ;; it under the terms of the GNU General Public License as published by | |
e5167999 | 13 | ;; the Free Software Foundation; either version 2, or (at your option) |
b1d6ae0b JB |
14 | ;; any later version. |
15 | ||
16 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
17 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | ;; GNU General Public License for more details. | |
20 | ||
21 | ;; You should have received a copy of the GNU General Public License | |
b578f267 EN |
22 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
23 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
24 | ;; Boston, MA 02111-1307, USA. | |
b1d6ae0b | 25 | |
e5167999 ER |
26 | ;;; Commentary: |
27 | ||
e41b2db1 ER |
28 | ;; Commands for editing a buffer interpreted as a rectangular array |
29 | ;; or matrix of whitespace-separated strings. You specify the array | |
30 | ;; dimensions and some other parameters at startup time. | |
31 | ||
32 | ;; Written by dmb%morgoth@harvard.harvard.edu (address is old) | |
33 | ;; (David M. Brown at Goldberg-Zoino & Associates, Inc.) | |
34 | ;; Thanks to cph@kleph.ai.mit.edu for assistance | |
35 | ||
36 | ;; To do: | |
37 | ;; Smooth initialization process by grokking local variables list | |
38 | ;; at end of buffer or parsing buffer using whitespace as delimiters. | |
39 | ;; Make 'array-copy-column-right faster. | |
b1d6ae0b JB |
40 | |
41 | \f | |
e5167999 | 42 | ;;; Code: |
b1d6ae0b | 43 | |
41674a5a DL |
44 | (eval-when-compile |
45 | (defvar array-max-column) | |
46 | (defvar array-columns-per-line) | |
47 | (defvar array-buffer-column) | |
48 | (defvar array-line-length) | |
49 | (defvar array-buffer-line) | |
50 | (defvar array-lines-per-row) | |
51 | (defvar array-max-row) | |
52 | (defvar array-field-width) | |
53 | (defvar array-row) | |
54 | (defvar array-column) | |
55 | (defvar array-rows-numbered) | |
56 | (defvar array-copy-string) | |
57 | (defvar array-init-field) | |
58 | (defvar array-respect-tabs)) | |
59 | ||
b1d6ae0b JB |
60 | ;;; Internal information functions. |
61 | ||
62 | (defun array-cursor-in-array-range () | |
41674a5a | 63 | "Return t if the cursor is in a valid array cell. |
b1d6ae0b | 64 | Its ok to be on a row number line." |
41674a5a DL |
65 | (let ((columns-last-line (% array-max-column array-columns-per-line))) |
66 | ;; Requires array-buffer-line and array-buffer-column to be current. | |
b1d6ae0b JB |
67 | (not (or |
68 | ;; The cursor is too far to the right. | |
41674a5a | 69 | (>= array-buffer-column array-line-length) |
b1d6ae0b | 70 | ;; The cursor is below the last row. |
41674a5a | 71 | (>= array-buffer-line (* array-lines-per-row array-max-row)) |
b1d6ae0b JB |
72 | ;; The cursor is on the last line of the row, the line is smaller |
73 | ;; than the others, and the cursor is after the last array column | |
74 | ;; on the line. | |
41674a5a | 75 | (and (zerop (% (1+ array-buffer-line) array-lines-per-row)) |
b1d6ae0b | 76 | (not (zerop columns-last-line)) |
41674a5a | 77 | (>= array-buffer-column (* columns-last-line array-field-width))))))) |
b1d6ae0b JB |
78 | |
79 | (defun array-current-row () | |
80 | "Return the array row of the field in which the cursor is located." | |
41674a5a | 81 | ;; Requires array-buffer-line and array-buffer-column to be current. |
b1d6ae0b | 82 | (and (array-cursor-in-array-range) |
41674a5a | 83 | (1+ (floor array-buffer-line array-lines-per-row)))) |
b1d6ae0b JB |
84 | |
85 | (defun array-current-column () | |
86 | "Return the array column of the field in which the cursor is located." | |
41674a5a | 87 | ;; Requires array-buffer-line and array-buffer-column to be current. |
b1d6ae0b JB |
88 | (and (array-cursor-in-array-range) |
89 | ;; It's not okay to be on a row number line. | |
41674a5a DL |
90 | (not (and array-rows-numbered |
91 | (zerop (% array-buffer-line array-lines-per-row)))) | |
b1d6ae0b JB |
92 | (+ |
93 | ;; Array columns due to line differences. | |
41674a5a DL |
94 | (* array-columns-per-line |
95 | (if array-rows-numbered | |
96 | (1- (% array-buffer-line array-lines-per-row)) | |
97 | (% array-buffer-line array-lines-per-row))) | |
b1d6ae0b | 98 | ;; Array columns on the current line. |
41674a5a | 99 | (1+ (floor array-buffer-column array-field-width))))) |
b1d6ae0b JB |
100 | |
101 | (defun array-update-array-position (&optional a-row a-column) | |
41674a5a DL |
102 | "Set `array-row' and `array-column' to their current values. |
103 | Set them to the optional arguments A-ROW and A-COLUMN if those are supplied." | |
104 | ;; Requires that array-buffer-line and array-buffer-column be current. | |
b1d6ae0b JB |
105 | (setq array-row (or a-row (array-current-row)) |
106 | array-column (or a-column (array-current-column)))) | |
107 | ||
108 | (defun array-update-buffer-position () | |
41674a5a DL |
109 | "Set array-buffer-line and array-buffer-column to their current values." |
110 | (setq array-buffer-line (current-line) | |
111 | array-buffer-column (current-column))) | |
b1d6ae0b JB |
112 | |
113 | \f | |
114 | ||
115 | ;;; Information commands. | |
116 | ||
117 | (defun array-what-position () | |
118 | "Display the row and column in which the cursor is positioned." | |
119 | (interactive) | |
41674a5a DL |
120 | (let ((array-buffer-line (current-line)) |
121 | (array-buffer-column (current-column))) | |
122 | (message "Array row: %s Array column: %s" | |
4bf785ba KH |
123 | (prin1-to-string (array-current-row)) |
124 | (prin1-to-string (array-current-column))))) | |
b1d6ae0b JB |
125 | |
126 | (defun array-display-local-variables () | |
127 | "Display the current state of the local variables in the minibuffer." | |
128 | (interactive) | |
129 | (let ((buf (buffer-name (current-buffer)))) | |
130 | (with-output-to-temp-buffer "*Local Variables*" | |
131 | (buffer-disable-undo standard-output) | |
132 | (terpri) | |
133 | (princ (format " Buffer: %s\n\n" buf)) | |
134 | (princ (format " max-row: %s\n" | |
41674a5a | 135 | (prin1-to-string array-max-row))) |
b1d6ae0b | 136 | (princ (format " max-column: %s\n" |
41674a5a | 137 | (prin1-to-string array-max-column))) |
b1d6ae0b | 138 | (princ (format " columns-per-line: %s\n" |
41674a5a | 139 | (prin1-to-string array-columns-per-line))) |
b1d6ae0b | 140 | (princ (format " field-width: %s\n" |
41674a5a | 141 | (prin1-to-string array-field-width))) |
b1d6ae0b | 142 | (princ (format " rows-numbered: %s\n" |
41674a5a | 143 | (prin1-to-string array-rows-numbered))) |
b1d6ae0b | 144 | (princ (format " lines-per-row: %s\n" |
41674a5a | 145 | (prin1-to-string array-lines-per-row))) |
b1d6ae0b | 146 | (princ (format " line-length: %s\n" |
41674a5a | 147 | (prin1-to-string array-line-length)))))) |
b1d6ae0b JB |
148 | |
149 | \f | |
150 | ||
151 | ;;; Internal movement functions. | |
152 | ||
153 | (defun array-beginning-of-field (&optional go-there) | |
154 | "Return the column of the beginning of the current field. | |
155 | Optional argument GO-THERE, if non-nil, means go there too." | |
41674a5a DL |
156 | ;; Requires that array-buffer-column be current. |
157 | (let ((goal-column (- array-buffer-column (% array-buffer-column array-field-width)))) | |
b1d6ae0b JB |
158 | (if go-there |
159 | (move-to-column-untabify goal-column) | |
160 | goal-column))) | |
161 | ||
162 | (defun array-end-of-field (&optional go-there) | |
163 | "Return the column of the end of the current array field. | |
164 | If optional argument GO-THERE is non-nil, go there too." | |
41674a5a DL |
165 | ;; Requires that array-buffer-column be current. |
166 | (let ((goal-column (+ (- array-buffer-column (% array-buffer-column array-field-width)) | |
167 | array-field-width))) | |
b1d6ae0b JB |
168 | (if go-there |
169 | (move-to-column-untabify goal-column) | |
170 | goal-column))) | |
171 | ||
172 | (defun array-move-to-cell (a-row a-column) | |
41674a5a | 173 | "Move to array row A-ROW and array column A-COLUMN. |
b1d6ae0b | 174 | Leave point at the beginning of the field and return the new buffer column." |
41674a5a DL |
175 | (let ((goal-line (+ (* array-lines-per-row (1- a-row)) |
176 | (if array-rows-numbered 1 0) | |
177 | (floor (1- a-column) array-columns-per-line))) | |
178 | (goal-column (* array-field-width (% (1- a-column) array-columns-per-line)))) | |
b1d6ae0b JB |
179 | (goto-char (point-min)) |
180 | (forward-line goal-line) | |
181 | (move-to-column-untabify goal-column))) | |
182 | ||
183 | (defun array-move-to-row (a-row) | |
184 | "Move to array row A-ROW preserving the current array column. | |
185 | Leave point at the beginning of the field and return the new array row." | |
41674a5a DL |
186 | ;; Requires that array-buffer-line and array-buffer-column be current. |
187 | (let ((goal-line (+ (* array-lines-per-row (1- a-row)) | |
188 | (% array-buffer-line array-lines-per-row))) | |
189 | (goal-column (- array-buffer-column (% array-buffer-column array-field-width)))) | |
190 | (forward-line (- goal-line array-buffer-line)) | |
b1d6ae0b JB |
191 | (move-to-column-untabify goal-column) |
192 | a-row)) | |
193 | ||
194 | (defun array-move-to-column (a-column) | |
195 | "Move to array column A-COLUMN preserving the current array row. | |
196 | Leave point at the beginning of the field and return the new array column." | |
41674a5a DL |
197 | ;; Requires that array-buffer-line and array-buffer-column be current. |
198 | (let ((goal-line (+ (- array-buffer-line (% array-buffer-line array-lines-per-row)) | |
199 | (if array-rows-numbered 1 0) | |
200 | (floor (1- a-column) array-columns-per-line))) | |
201 | (goal-column (* array-field-width (% (1- a-column) array-columns-per-line)))) | |
202 | (forward-line (- goal-line array-buffer-line)) | |
b1d6ae0b JB |
203 | (move-to-column-untabify goal-column) |
204 | a-column)) | |
205 | ||
206 | (defun array-move-one-row (sign) | |
207 | "Move one array row in direction SIGN (1 or -1). | |
208 | Leave point at the beginning of the field and return the new array row. | |
209 | If requested to move beyond the array bounds, signal an error." | |
41674a5a | 210 | ;; Requires that array-buffer-line and array-buffer-column be current. |
b1d6ae0b JB |
211 | (let ((goal-column (array-beginning-of-field)) |
212 | (array-row (or (array-current-row) | |
41674a5a DL |
213 | (error "Cursor is not in a valid array cell")))) |
214 | (cond ((and (= array-row array-max-row) (= sign 1)) | |
215 | (error "End of array")) | |
b1d6ae0b | 216 | ((and (= array-row 1) (= sign -1)) |
41674a5a | 217 | (error "Beginning of array")) |
b1d6ae0b JB |
218 | (t |
219 | (progn | |
41674a5a | 220 | (forward-line (* sign array-lines-per-row)) |
b1d6ae0b JB |
221 | (move-to-column-untabify goal-column) |
222 | (+ array-row sign)))))) | |
223 | ||
224 | (defun array-move-one-column (sign) | |
225 | "Move one array column in direction SIGN (1 or -1). | |
226 | Leave point at the beginning of the field and return the new array column. | |
227 | If requested to move beyond the array bounds, signal an error." | |
41674a5a | 228 | ;; Requires that array-buffer-line and array-buffer-column be current. |
b1d6ae0b | 229 | (let ((array-column (or (array-current-column) |
41674a5a DL |
230 | (error "Cursor is not in a valid array cell")))) |
231 | (cond ((and (= array-column array-max-column) (= sign 1)) | |
232 | (error "End of array")) | |
b1d6ae0b | 233 | ((and (= array-column 1) (= sign -1)) |
41674a5a | 234 | (error "Beginning of array")) |
b1d6ae0b | 235 | (t |
41674a5a | 236 | (cond |
b1d6ae0b | 237 | ;; Going backward from first column on the line. |
41674a5a | 238 | ((and (= sign -1) (= 1 (% array-column array-columns-per-line))) |
b1d6ae0b JB |
239 | (forward-line -1) |
240 | (move-to-column-untabify | |
41674a5a | 241 | (* array-field-width (1- array-columns-per-line)))) |
b1d6ae0b | 242 | ;; Going forward from last column on the line. |
41674a5a | 243 | ((and (= sign 1) (zerop (% array-column array-columns-per-line))) |
b1d6ae0b JB |
244 | (forward-line 1)) |
245 | ;; Somewhere in the middle of the line. | |
246 | (t | |
247 | (move-to-column-untabify (+ (array-beginning-of-field) | |
41674a5a | 248 | (* array-field-width sign))))) |
b1d6ae0b JB |
249 | (+ array-column sign))))) |
250 | ||
251 | (defun array-normalize-cursor () | |
41674a5a DL |
252 | "Move the cursor to the first non-whitespace character in the field. |
253 | If necessary, scroll horizontally to keep the cursor in view." | |
b1d6ae0b | 254 | ;; Assumes point is at the beginning of the field. |
41674a5a | 255 | (let ((array-buffer-column (current-column))) |
b1d6ae0b JB |
256 | (skip-chars-forward " \t" |
257 | (1- (save-excursion (array-end-of-field t) (point)))) | |
258 | (array-maybe-scroll-horizontally))) | |
259 | ||
260 | (defun array-maybe-scroll-horizontally () | |
261 | "If necessary, scroll horizontally to keep the cursor in view." | |
262 | ;; This is only called from array-normalize-cursor so | |
41674a5a | 263 | ;; array-buffer-column will always be current. |
b1d6ae0b JB |
264 | (let ((w-hscroll (window-hscroll)) |
265 | (w-width (window-width))) | |
266 | (cond | |
41674a5a DL |
267 | ((and (>= array-buffer-column w-hscroll) |
268 | (<= array-buffer-column (+ w-hscroll w-width))) | |
b1d6ae0b JB |
269 | ;; It's already visible. Do nothing. |
270 | nil) | |
41674a5a | 271 | ((> array-buffer-column (+ w-hscroll w-width)) |
b1d6ae0b | 272 | ;; It's to the right. Scroll left. |
41674a5a | 273 | (scroll-left (- (- array-buffer-column w-hscroll) |
b1d6ae0b JB |
274 | (/ w-width 2)))) |
275 | (t | |
276 | ;; It's to the left. Scroll right. | |
41674a5a | 277 | (scroll-right (+ (- w-hscroll array-buffer-column) |
b1d6ae0b JB |
278 | (/ w-width 2))))))) |
279 | ||
280 | \f | |
281 | ||
282 | ;;; Movement commands. | |
283 | ||
284 | (defun array-next-row (&optional arg) | |
285 | "Move down one array row, staying in the current array column. | |
286 | If optional ARG is given, move down ARG array rows." | |
287 | (interactive "p") | |
41674a5a DL |
288 | (let ((array-buffer-line (current-line)) |
289 | (array-buffer-column (current-column))) | |
b1d6ae0b JB |
290 | (if (= (abs arg) 1) |
291 | (array-move-one-row arg) | |
292 | (array-move-to-row | |
293 | (limit-index (+ (or (array-current-row) | |
41674a5a | 294 | (error "Cursor is not in an array cell")) |
b1d6ae0b | 295 | arg) |
41674a5a | 296 | array-max-row)))) |
b1d6ae0b JB |
297 | (array-normalize-cursor)) |
298 | ||
299 | (defun array-previous-row (&optional arg) | |
300 | "Move up one array row, staying in the current array column. | |
301 | If optional ARG is given, move up ARG array rows." | |
302 | (interactive "p") | |
303 | (array-next-row (- arg))) | |
304 | ||
305 | (defun array-forward-column (&optional arg) | |
306 | "Move forward one field, staying in the current array row. | |
307 | If optional ARG is given, move forward ARG array columns. | |
308 | If necessary, keep the cursor in the window by scrolling right or left." | |
309 | (interactive "p") | |
41674a5a DL |
310 | (let ((array-buffer-line (current-line)) |
311 | (array-buffer-column (current-column))) | |
b1d6ae0b JB |
312 | (if (= (abs arg) 1) |
313 | (array-move-one-column arg) | |
314 | (array-move-to-column | |
315 | (limit-index (+ (or (array-current-column) | |
41674a5a | 316 | (error "Cursor is not in an array cell")) |
b1d6ae0b | 317 | arg) |
41674a5a | 318 | array-max-column)))) |
b1d6ae0b JB |
319 | (array-normalize-cursor)) |
320 | ||
321 | (defun array-backward-column (&optional arg) | |
322 | "Move backward one field, staying in the current array row. | |
323 | If optional ARG is given, move backward ARG array columns. | |
324 | If necessary, keep the cursor in the window by scrolling right or left." | |
325 | (interactive "p") | |
326 | (array-forward-column (- arg))) | |
327 | ||
328 | (defun array-goto-cell (a-row a-column) | |
329 | "Go to array row A-ROW and array column A-COLUMN." | |
330 | (interactive "nArray row: \nnArray column: ") | |
331 | (array-move-to-cell | |
41674a5a DL |
332 | (limit-index a-row array-max-row) |
333 | (limit-index a-column array-max-column)) | |
b1d6ae0b JB |
334 | (array-normalize-cursor)) |
335 | ||
336 | \f | |
337 | ||
338 | ;;; Internal copying functions. | |
339 | ||
340 | (defun array-field-string () | |
341 | "Return the field string at the current cursor location." | |
41674a5a | 342 | ;; Requires that array-buffer-column be current. |
b1d6ae0b JB |
343 | (buffer-substring |
344 | (save-excursion (array-beginning-of-field t) (point)) | |
345 | (save-excursion (array-end-of-field t) (point)))) | |
346 | ||
347 | (defun array-copy-once-vertically (sign) | |
348 | "Copy the current field into one array row in direction SIGN (1 or -1). | |
349 | Leave point at the beginning of the field and return the new array row. | |
350 | If requested to move beyond the array bounds, signal an error." | |
41674a5a | 351 | ;; Requires that array-buffer-line, array-buffer-column, and array-copy-string be current. |
b1d6ae0b JB |
352 | (let ((a-row (array-move-one-row sign))) |
353 | (let ((inhibit-quit t)) | |
354 | (delete-region (point) (save-excursion (array-end-of-field t) (point))) | |
41674a5a DL |
355 | (insert array-copy-string)) |
356 | (move-to-column array-buffer-column) | |
b1d6ae0b JB |
357 | a-row)) |
358 | ||
359 | (defun array-copy-once-horizontally (sign) | |
360 | "Copy the current field into one array column in direction SIGN (1 or -1). | |
361 | Leave point at the beginning of the field and return the new array column. | |
362 | If requested to move beyond the array bounds, signal an error." | |
41674a5a | 363 | ;; Requires that array-buffer-line, array-buffer-column, and array-copy-string be current. |
b1d6ae0b JB |
364 | (let ((a-column (array-move-one-column sign))) |
365 | (array-update-buffer-position) | |
366 | (let ((inhibit-quit t)) | |
367 | (delete-region (point) (save-excursion (array-end-of-field t) (point))) | |
41674a5a DL |
368 | (insert array-copy-string)) |
369 | (move-to-column array-buffer-column) | |
b1d6ae0b JB |
370 | a-column)) |
371 | ||
372 | (defun array-copy-to-row (a-row) | |
373 | "Copy the current field vertically into every cell up to and including A-ROW. | |
374 | Leave point at the beginning of the field." | |
41674a5a DL |
375 | ;; Requires that array-buffer-line, array-buffer-column, array-row, and |
376 | ;; array-copy-string be current. | |
b1d6ae0b JB |
377 | (let* ((num (- a-row array-row)) |
378 | (count (abs num)) | |
379 | (sign (if (zerop count) () (/ num count)))) | |
380 | (while (> count 0) | |
381 | (array-move-one-row sign) | |
382 | (array-update-buffer-position) | |
383 | (let ((inhibit-quit t)) | |
384 | (delete-region (point) (save-excursion (array-end-of-field t) (point))) | |
41674a5a DL |
385 | (insert array-copy-string)) |
386 | (move-to-column array-buffer-column) | |
b1d6ae0b JB |
387 | (setq count (1- count))))) |
388 | ||
389 | (defun array-copy-to-column (a-column) | |
41674a5a DL |
390 | "Copy current field horizontally into every cell up to and including A-COLUMN. |
391 | Leave point at the beginning of the field." | |
392 | ;; Requires that array-buffer-line, array-buffer-column, array-column, and | |
393 | ;; array-copy-string be current. | |
b1d6ae0b JB |
394 | (let* ((num (- a-column array-column)) |
395 | (count (abs num)) | |
396 | (sign (if (zerop count) () (/ num count)))) | |
397 | (while (> count 0) | |
398 | (array-move-one-column sign) | |
399 | (array-update-buffer-position) | |
400 | (let ((inhibit-quit t)) | |
401 | (delete-region (point) (save-excursion (array-end-of-field t) (point))) | |
41674a5a DL |
402 | (insert array-copy-string)) |
403 | (move-to-column array-buffer-column) | |
b1d6ae0b JB |
404 | (setq count (1- count))))) |
405 | ||
406 | (defun array-copy-to-cell (a-row a-column) | |
407 | "Copy the current field into the cell at A-ROW, A-COLUMN. | |
408 | Leave point at the beginning of the field." | |
41674a5a | 409 | ;; Requires that array-copy-string be current. |
b1d6ae0b JB |
410 | (array-move-to-cell a-row a-column) |
411 | (array-update-buffer-position) | |
412 | (delete-region (point) (save-excursion (array-end-of-field t) (point))) | |
41674a5a DL |
413 | (insert array-copy-string) |
414 | (move-to-column array-buffer-column)) | |
b1d6ae0b JB |
415 | |
416 | \f | |
417 | ||
418 | ;;; Commands for copying. | |
419 | ||
420 | (defun array-copy-down (&optional arg) | |
421 | "Copy the current field one array row down. | |
422 | If optional ARG is given, copy down through ARG array rows." | |
423 | (interactive "p") | |
41674a5a DL |
424 | (let* ((array-buffer-line (current-line)) |
425 | (array-buffer-column (current-column)) | |
b1d6ae0b | 426 | (array-row (or (array-current-row) |
41674a5a DL |
427 | (error "Cursor is not in a valid array cell"))) |
428 | (array-copy-string (array-field-string))) | |
b1d6ae0b JB |
429 | (if (= (abs arg) 1) |
430 | (array-copy-once-vertically arg) | |
431 | (array-copy-to-row | |
41674a5a | 432 | (limit-index (+ array-row arg) array-max-row)))) |
b1d6ae0b JB |
433 | (array-normalize-cursor)) |
434 | ||
435 | (defun array-copy-up (&optional arg) | |
436 | "Copy the current field one array row up. | |
437 | If optional ARG is given, copy up through ARG array rows." | |
438 | (interactive "p") | |
439 | (array-copy-down (- arg))) | |
440 | ||
441 | (defun array-copy-forward (&optional arg) | |
442 | "Copy the current field one array column to the right. | |
443 | If optional ARG is given, copy through ARG array columns to the right." | |
444 | (interactive "p") | |
41674a5a DL |
445 | (let* ((array-buffer-line (current-line)) |
446 | (array-buffer-column (current-column)) | |
b1d6ae0b | 447 | (array-column (or (array-current-column) |
41674a5a DL |
448 | (error "Cursor is not in a valid array cell"))) |
449 | (array-copy-string (array-field-string))) | |
b1d6ae0b JB |
450 | (if (= (abs arg) 1) |
451 | (array-copy-once-horizontally arg) | |
452 | (array-copy-to-column | |
41674a5a | 453 | (limit-index (+ array-column arg) array-max-column)))) |
b1d6ae0b JB |
454 | (array-normalize-cursor)) |
455 | ||
456 | (defun array-copy-backward (&optional arg) | |
457 | "Copy the current field one array column to the left. | |
458 | If optional ARG is given, copy through ARG array columns to the left." | |
459 | (interactive "p") | |
460 | (array-copy-forward (- arg))) | |
461 | ||
462 | (defun array-copy-column-forward (&optional arg) | |
463 | "Copy the entire current column in to the column to the right. | |
464 | If optional ARG is given, copy through ARG array columns to the right." | |
465 | (interactive "p") | |
466 | (array-update-buffer-position) | |
467 | (array-update-array-position) | |
468 | (if (not array-column) | |
41674a5a | 469 | (error "Cursor is not in a valid array cell")) |
b1d6ae0b JB |
470 | (message "Working...") |
471 | (let ((this-row 0)) | |
41674a5a | 472 | (while (< this-row array-max-row) |
b1d6ae0b JB |
473 | (setq this-row (1+ this-row)) |
474 | (array-move-to-cell this-row array-column) | |
475 | (array-update-buffer-position) | |
41674a5a | 476 | (let ((array-copy-string (array-field-string))) |
b1d6ae0b JB |
477 | (if (= (abs arg) 1) |
478 | (array-copy-once-horizontally arg) | |
479 | (array-copy-to-column | |
41674a5a | 480 | (limit-index (+ array-column arg) array-max-column)))))) |
b1d6ae0b JB |
481 | (message "Working...done") |
482 | (array-move-to-row array-row) | |
483 | (array-normalize-cursor)) | |
484 | ||
485 | (defun array-copy-column-backward (&optional arg) | |
486 | "Copy the entire current column one column to the left. | |
487 | If optional ARG is given, copy through ARG columns to the left." | |
488 | (interactive "p") | |
489 | (array-copy-column-forward (- arg))) | |
490 | ||
491 | (defun array-copy-row-down (&optional arg) | |
492 | "Copy the entire current row one row down. | |
493 | If optional ARG is given, copy through ARG rows down." | |
494 | (interactive "p") | |
495 | (array-update-buffer-position) | |
496 | (array-update-array-position) | |
497 | (if (not array-row) | |
41674a5a | 498 | (error "Cursor is not in a valid array cell")) |
b1d6ae0b JB |
499 | (cond |
500 | ((and (= array-row 1) (= arg -1)) | |
41674a5a DL |
501 | (error "Beginning of array")) |
502 | ((and (= array-row array-max-row) (= arg 1)) | |
503 | (error "End of array")) | |
b1d6ae0b | 504 | (t |
41674a5a | 505 | (let* ((array-copy-string |
b1d6ae0b JB |
506 | (buffer-substring |
507 | (save-excursion (array-move-to-cell array-row 1) | |
508 | (point)) | |
41674a5a | 509 | (save-excursion (array-move-to-cell array-row array-max-column) |
b1d6ae0b JB |
510 | (forward-line 1) |
511 | (point)))) | |
512 | (this-row array-row) | |
41674a5a | 513 | (goal-row (limit-index (+ this-row arg) array-max-row)) |
b1d6ae0b JB |
514 | (num (- goal-row this-row)) |
515 | (count (abs num)) | |
516 | (sign (if (not (zerop count)) (/ num count)))) | |
517 | (while (> count 0) | |
518 | (setq this-row (+ this-row sign)) | |
519 | (array-move-to-cell this-row 1) | |
520 | (let ((inhibit-quit t)) | |
521 | (delete-region (point) | |
522 | (save-excursion | |
41674a5a | 523 | (array-move-to-cell this-row array-max-column) |
b1d6ae0b JB |
524 | (forward-line 1) |
525 | (point))) | |
41674a5a | 526 | (insert array-copy-string)) |
b1d6ae0b JB |
527 | (setq count (1- count))) |
528 | (array-move-to-cell goal-row (or array-column 1))))) | |
529 | (array-normalize-cursor)) | |
530 | ||
531 | (defun array-copy-row-up (&optional arg) | |
532 | "Copy the entire current array row into the row above. | |
533 | If optional ARG is given, copy through ARG rows up." | |
534 | (interactive "p") | |
535 | (array-copy-row-down (- arg))) | |
536 | ||
537 | (defun array-fill-rectangle () | |
538 | "Copy the field at mark into every cell between mark and point." | |
539 | (interactive) | |
540 | ;; Bind arguments. | |
541 | (array-update-buffer-position) | |
542 | (let ((p-row (or (array-current-row) | |
41674a5a | 543 | (error "Cursor is not in a valid array cell"))) |
b1d6ae0b | 544 | (p-column (or (array-current-column) |
41674a5a | 545 | (error "Cursor is not in a valid array cell"))) |
b1d6ae0b JB |
546 | (m-row |
547 | (save-excursion | |
548 | (exchange-point-and-mark) | |
549 | (array-update-buffer-position) | |
550 | (or (array-current-row) | |
41674a5a DL |
551 | (error "Mark is not in a valid array cell")))) |
552 | (m-column | |
b1d6ae0b JB |
553 | (save-excursion |
554 | (exchange-point-and-mark) | |
555 | (array-update-buffer-position) | |
556 | (or (array-current-column) | |
41674a5a | 557 | (error "Mark is not in a valid array cell"))))) |
b1d6ae0b JB |
558 | (message "Working...") |
559 | (let ((top-row (min m-row p-row)) | |
560 | (bottom-row (max m-row p-row)) | |
561 | (left-column (min m-column p-column)) | |
562 | (right-column (max m-column p-column))) | |
563 | ;; Do the first row. | |
41674a5a | 564 | (let ((array-copy-string |
b1d6ae0b JB |
565 | (save-excursion |
566 | (array-move-to-cell m-row m-column) | |
567 | (array-update-buffer-position) | |
568 | (array-field-string)))) | |
569 | (array-copy-to-cell top-row left-column) | |
570 | (array-update-array-position top-row left-column) | |
571 | (array-update-buffer-position) | |
572 | (array-copy-to-column right-column)) | |
573 | ;; Do the rest of the rows. | |
574 | (array-move-to-cell top-row left-column) | |
41674a5a | 575 | (let ((array-copy-string |
b1d6ae0b JB |
576 | (buffer-substring |
577 | (point) | |
578 | (save-excursion | |
579 | (array-move-to-cell top-row right-column) | |
41674a5a | 580 | (setq array-buffer-column (current-column)) |
b1d6ae0b JB |
581 | (array-end-of-field t) |
582 | (point)))) | |
583 | (this-row top-row)) | |
584 | (while (/= this-row bottom-row) | |
585 | (setq this-row (1+ this-row)) | |
586 | (array-move-to-cell this-row left-column) | |
587 | (let ((inhibit-quit t)) | |
588 | (delete-region | |
589 | (point) | |
590 | (save-excursion | |
591 | (array-move-to-cell this-row right-column) | |
41674a5a | 592 | (setq array-buffer-column (current-column)) |
b1d6ae0b JB |
593 | (array-end-of-field t) |
594 | (point))) | |
41674a5a | 595 | (insert array-copy-string))))) |
b1d6ae0b JB |
596 | (message "Working...done") |
597 | (array-goto-cell p-row p-column))) | |
598 | ||
599 | \f | |
600 | ||
601 | ;;; Reconfiguration of the array. | |
602 | ||
603 | (defun array-make-template () | |
604 | "Create the template of an array." | |
605 | (interactive) | |
41674a5a | 606 | ;; If there is a conflict between array-field-width and init-string, resolve it. |
b1d6ae0b JB |
607 | (let ((check t) |
608 | (len)) | |
609 | (while check | |
41674a5a DL |
610 | (setq array-init-field (read-input "Initial field value: ")) |
611 | (setq len (length array-init-field)) | |
612 | (if (/= len array-field-width) | |
b1d6ae0b | 613 | (if (y-or-n-p (format "Change field width to %d? " len)) |
41674a5a | 614 | (progn (setq array-field-width len) |
b1d6ae0b JB |
615 | (setq check nil))) |
616 | (setq check nil)))) | |
617 | (goto-char (point-min)) | |
618 | (message "Working...") | |
619 | (let ((this-row 1)) | |
620 | ;; Loop through the rows. | |
41674a5a DL |
621 | (while (<= this-row array-max-row) |
622 | (if array-rows-numbered | |
b1d6ae0b JB |
623 | (insert (format "%d:\n" this-row))) |
624 | (let ((this-column 1)) | |
625 | ;; Loop through the columns. | |
41674a5a DL |
626 | (while (<= this-column array-max-column) |
627 | (insert array-init-field) | |
628 | (if (and (zerop (% this-column array-columns-per-line)) | |
629 | (/= this-column array-max-column)) | |
b1d6ae0b JB |
630 | (newline)) |
631 | (setq this-column (1+ this-column)))) | |
632 | (setq this-row (1+ this-row)) | |
633 | (newline))) | |
634 | (message "Working...done") | |
635 | (array-goto-cell 1 1)) | |
636 | ||
637 | (defun array-reconfigure-rows (new-columns-per-line new-rows-numbered) | |
41674a5a DL |
638 | "Reconfigure the state of `array-rows-numbered' and `array-columns-per-line'. |
639 | NEW-COLUMNS-PER-LINE is the desired value of `array-columns-per-line' and | |
b1d6ae0b | 640 | NEW-ROWS-NUMBERED (a character, either ?y or ?n) is the desired value |
41674a5a | 641 | of array-rows-numbered." |
b1d6ae0b JB |
642 | (interactive "nColumns per line: \ncRows numbered? (y or n) ") |
643 | ;; Check on new-columns-per-line | |
644 | (let ((check t)) | |
645 | (while check | |
646 | (if (and (>= new-columns-per-line 1) | |
41674a5a | 647 | (<= new-columns-per-line array-max-column)) |
b1d6ae0b JB |
648 | (setq check nil) |
649 | (setq new-columns-per-line | |
41674a5a DL |
650 | (string-to-int |
651 | (read-input | |
652 | (format "Columns per line (1 - %d): " array-max-column))))))) | |
b1d6ae0b JB |
653 | ;; Check on new-rows-numbered. It has to be done this way |
654 | ;; because interactive does not have y-or-n-p. | |
655 | (cond | |
656 | ((eq new-rows-numbered ?y) | |
657 | (setq new-rows-numbered t)) | |
658 | ((eq new-rows-numbered ?n) | |
659 | (setq new-rows-numbered nil)) | |
660 | (t | |
661 | (setq new-rows-numbered (y-or-n-p "Rows numbered? ")))) | |
662 | (message "Working...") | |
663 | (array-update-buffer-position) | |
664 | (let* ((main-buffer (buffer-name (current-buffer))) | |
18bf4ad8 | 665 | (temp-buffer (generate-new-buffer " *Array*")) |
41674a5a DL |
666 | (temp-max-row array-max-row) |
667 | (temp-max-column array-max-column) | |
668 | (old-rows-numbered array-rows-numbered) | |
669 | (old-columns-per-line array-columns-per-line) | |
670 | (old-lines-per-row array-lines-per-row) | |
671 | (old-field-width array-field-width) | |
672 | (old-line-length array-line-length) | |
b1d6ae0b JB |
673 | (this-row 1)) |
674 | (array-update-array-position) | |
675 | ;; Do the cutting in a temporary buffer. | |
676 | (copy-to-buffer temp-buffer (point-min) (point-max)) | |
677 | (set-buffer temp-buffer) | |
678 | (goto-char (point-min)) | |
679 | (while (<= this-row temp-max-row) | |
680 | ;; Deal with row number. | |
681 | (cond | |
682 | ((or (and old-rows-numbered new-rows-numbered) | |
683 | (and (not old-rows-numbered) (not new-rows-numbered))) | |
684 | ;; Nothing is changed. | |
685 | ()) | |
686 | ((and old-rows-numbered (not new-rows-numbered)) | |
687 | ;; Delete the row number. | |
688 | (kill-line 1)) | |
689 | (t | |
690 | ;; Add the row number. | |
691 | (insert-string (format "%d:\n" this-row)))) | |
692 | ;; Deal with the array columns in this row. | |
693 | (cond | |
694 | ((= old-columns-per-line new-columns-per-line) | |
695 | ;; Nothing is changed. Go to the next row. | |
696 | (forward-line (- old-lines-per-row (if old-rows-numbered 1 0)))) | |
697 | (t | |
698 | ;; First expand the row. Then cut it up into new pieces. | |
699 | (let ((newlines-to-be-removed | |
700 | (floor (1- temp-max-column) old-columns-per-line)) | |
701 | (newlines-removed 0) | |
702 | (newlines-to-be-added | |
703 | (floor (1- temp-max-column) new-columns-per-line)) | |
704 | (newlines-added 0)) | |
705 | (while (< newlines-removed newlines-to-be-removed) | |
706 | (move-to-column-untabify | |
707 | (* (1+ newlines-removed) old-line-length)) | |
708 | (kill-line 1) | |
709 | (setq newlines-removed (1+ newlines-removed))) | |
710 | (beginning-of-line) | |
711 | (while (< newlines-added newlines-to-be-added) | |
712 | (move-to-column-untabify (* old-field-width new-columns-per-line)) | |
713 | (newline) | |
714 | (setq newlines-added (1+ newlines-added))) | |
715 | (forward-line 1)))) | |
716 | (setq this-row (1+ this-row))) | |
717 | (let ((inhibit-quit t)) | |
718 | (set-buffer main-buffer) | |
719 | (erase-buffer) | |
41674a5a | 720 | (insert-buffer temp-buffer) |
b1d6ae0b | 721 | ;; Update local variables. |
41674a5a DL |
722 | (setq array-columns-per-line new-columns-per-line) |
723 | (setq array-rows-numbered new-rows-numbered) | |
724 | (setq array-line-length (* old-field-width new-columns-per-line)) | |
725 | (setq array-lines-per-row | |
9cd77daa PE |
726 | (+ (floor (1- temp-max-column) new-columns-per-line) |
727 | (if new-rows-numbered 2 1))) | |
b1d6ae0b JB |
728 | (array-goto-cell (or array-row 1) (or array-column 1))) |
729 | (kill-buffer temp-buffer)) | |
730 | (message "Working...done")) | |
731 | ||
732 | (defun array-expand-rows () | |
733 | "Expand the rows so each fits on one line and remove row numbers." | |
734 | (interactive) | |
41674a5a | 735 | (array-reconfigure-rows array-max-column ?n)) |
b1d6ae0b JB |
736 | |
737 | \f | |
738 | ||
739 | ;;; Utilities. | |
740 | ||
741 | (defun limit-index (index limit) | |
742 | (cond ((< index 1) 1) | |
743 | ((> index limit) limit) | |
744 | (t index))) | |
745 | ||
b1d6ae0b | 746 | (defun xor (pred1 pred2) |
41674a5a | 747 | "Return the logical exclusive or of predicates PRED1 and PRED2." |
b1d6ae0b JB |
748 | (and (or pred1 pred2) |
749 | (not (and pred1 pred2)))) | |
750 | ||
751 | (defun current-line () | |
41674a5a | 752 | "Return the current buffer line at point. The first line is 0." |
b1d6ae0b JB |
753 | (save-excursion |
754 | (beginning-of-line) | |
755 | (count-lines (point-min) (point)))) | |
756 | ||
757 | (defun move-to-column-untabify (column) | |
758 | "Move to COLUMN on the current line, untabifying if necessary. | |
759 | Return COLUMN." | |
760 | (or (and (= column (move-to-column column)) | |
761 | column) | |
762 | ;; There is a tab in the way. | |
41674a5a DL |
763 | (if array-respect-tabs |
764 | (error "There is a TAB character in the way") | |
b1d6ae0b JB |
765 | (progn |
766 | (untabify-backward) | |
767 | (move-to-column column))))) | |
768 | ||
769 | (defun untabify-backward () | |
770 | "Untabify the preceding tab." | |
771 | (save-excursion | |
772 | (let ((start (point))) | |
773 | (backward-char 1) | |
774 | (untabify (point) start)))) | |
775 | ||
776 | \f | |
777 | ||
778 | ;;; Array mode. | |
779 | ||
41674a5a | 780 | (defvar array-mode-map nil |
b1d6ae0b JB |
781 | "Keymap used in array mode.") |
782 | ||
783 | (if array-mode-map | |
784 | () | |
785 | (setq array-mode-map (make-keymap)) | |
786 | ;; Bind keys. | |
787 | (define-key array-mode-map "\M-ad" 'array-display-local-variables) | |
788 | (define-key array-mode-map "\M-am" 'array-make-template) | |
789 | (define-key array-mode-map "\M-ae" 'array-expand-rows) | |
790 | (define-key array-mode-map "\M-ar" 'array-reconfigure-rows) | |
791 | (define-key array-mode-map "\M-a=" 'array-what-position) | |
792 | (define-key array-mode-map "\M-ag" 'array-goto-cell) | |
793 | (define-key array-mode-map "\M-af" 'array-fill-rectangle) | |
794 | (define-key array-mode-map "\C-n" 'array-next-row) | |
795 | (define-key array-mode-map "\C-p" 'array-previous-row) | |
796 | (define-key array-mode-map "\C-f" 'array-forward-column) | |
797 | (define-key array-mode-map "\C-b" 'array-backward-column) | |
798 | (define-key array-mode-map "\M-n" 'array-copy-down) | |
799 | (define-key array-mode-map "\M-p" 'array-copy-up) | |
800 | (define-key array-mode-map "\M-f" 'array-copy-forward) | |
801 | (define-key array-mode-map "\M-b" 'array-copy-backward) | |
802 | (define-key array-mode-map "\M-\C-n" 'array-copy-row-down) | |
803 | (define-key array-mode-map "\M-\C-p" 'array-copy-row-up) | |
804 | (define-key array-mode-map "\M-\C-f" 'array-copy-column-forward) | |
805 | (define-key array-mode-map "\M-\C-b" 'array-copy-column-backward)) | |
806 | ||
807 | (put 'array-mode 'mode-class 'special) | |
808 | ||
499bfd5f | 809 | ;;;###autoload |
b1d6ae0b JB |
810 | (defun array-mode () |
811 | "Major mode for editing arrays. | |
812 | ||
813 | Array mode is a specialized mode for editing arrays. An array is | |
814 | considered to be a two-dimensional set of strings. The strings are | |
815 | NOT recognized as integers or real numbers. | |
816 | ||
41674a5a | 817 | The array MUST reside at the top of the buffer. |
b1d6ae0b JB |
818 | |
819 | TABs are not respected, and may be converted into spaces at any time. | |
41674a5a | 820 | Setting the variable 'array-respect-tabs to non-nil will prevent TAB conversion, |
b1d6ae0b JB |
821 | but will cause many functions to give errors if they encounter one. |
822 | ||
823 | Upon entering array mode, you will be prompted for the values of | |
824 | several variables. Others will be calculated based on the values you | |
825 | supply. These variables are all local the the buffer. Other buffer | |
826 | in array mode may have different values assigned to the variables. | |
827 | The variables are: | |
828 | ||
829 | Variables you assign: | |
41674a5a DL |
830 | array-max-row: The number of rows in the array. |
831 | array-max-column: The number of columns in the array. | |
832 | array-columns-per-line: The number of columns in the array per line of buffer. | |
833 | array-field-width: The width of each field, in characters. | |
834 | array-rows-numbered: A logical variable describing whether to ignore | |
b1d6ae0b JB |
835 | row numbers in the buffer. |
836 | ||
837 | Variables which are calculated: | |
41674a5a DL |
838 | array-line-length: The number of characters in a buffer line. |
839 | array-lines-per-row: The number of buffer lines used to display each row. | |
b1d6ae0b JB |
840 | |
841 | The following commands are available (an asterisk indicates it may | |
842 | take a numeric prefix argument): | |
843 | ||
844 | * \\<array-mode-map>\\[array-forward-column] Move forward one column. | |
845 | * \\[array-backward-column] Move backward one column. | |
846 | * \\[array-next-row] Move down one row. | |
847 | * \\[array-previous-row] Move up one row. | |
848 | ||
849 | * \\[array-copy-forward] Copy the current field into the column to the right. | |
850 | * \\[array-copy-backward] Copy the current field into the column to the left. | |
851 | * \\[array-copy-down] Copy the current field into the row below. | |
852 | * \\[array-copy-up] Copy the current field into the row above. | |
853 | ||
854 | * \\[array-copy-column-forward] Copy the current column into the column to the right. | |
855 | * \\[array-copy-column-backward] Copy the current column into the column to the left. | |
856 | * \\[array-copy-row-down] Copy the current row into the row below. | |
857 | * \\[array-copy-row-up] Copy the current row into the row above. | |
858 | ||
859 | \\[array-fill-rectangle] Copy the field at mark into every cell with row and column | |
860 | between that of point and mark. | |
861 | ||
862 | \\[array-what-position] Display the current array row and column. | |
863 | \\[array-goto-cell] Go to a particular array cell. | |
864 | ||
865 | \\[array-make-template] Make a template for a new array. | |
866 | \\[array-reconfigure-rows] Reconfigure the array. | |
867 | \\[array-expand-rows] Expand the array (remove row numbers and | |
868 | newlines inside rows) | |
869 | ||
870 | \\[array-display-local-variables] Display the current values of local variables. | |
871 | ||
872 | Entering array mode calls the function `array-mode-hook'." | |
873 | ||
874 | (interactive) | |
875 | ;; Number of rows in the array. | |
41674a5a | 876 | (make-local-variable 'array-max-row) |
b1d6ae0b | 877 | ;; Number of columns in the array. |
41674a5a | 878 | (make-local-variable 'array-max-column) |
b1d6ae0b | 879 | ;; Number of array columns per line. |
41674a5a | 880 | (make-local-variable 'array-columns-per-line) |
b1d6ae0b | 881 | ;; Width of a field in the array. |
41674a5a | 882 | (make-local-variable 'array-field-width) |
b1d6ae0b | 883 | ;; Are rows numbered in the buffer? |
41674a5a | 884 | (make-local-variable 'array-rows-numbered) |
b1d6ae0b | 885 | ;; Length of a line in the array. |
41674a5a | 886 | (make-local-variable 'array-line-length) |
b1d6ae0b | 887 | ;; Number of lines per array row. |
41674a5a | 888 | (make-local-variable 'array-lines-per-row) |
b1d6ae0b | 889 | ;; Current line number of point in the buffer. |
41674a5a | 890 | (make-local-variable 'array-buffer-line) |
b1d6ae0b | 891 | ;; Current column number of point in the buffer. |
41674a5a | 892 | (make-local-variable 'array-buffer-column) |
b1d6ae0b JB |
893 | ;; Current array row location of point. |
894 | (make-local-variable 'array-row) | |
895 | ;; Current array column location of point. | |
896 | (make-local-variable 'array-column) | |
897 | ;; Current field string being copied. | |
41674a5a | 898 | (make-local-variable 'array-copy-string) |
b1d6ae0b | 899 | ;; Should TAB conversion be prevented? |
41674a5a DL |
900 | (make-local-variable 'array-respect-tabs) |
901 | (setq array-respect-tabs nil) | |
b1d6ae0b JB |
902 | (array-init-local-variables) |
903 | (setq major-mode 'array-mode) | |
904 | (setq mode-name "Array") | |
a838308c | 905 | (force-mode-line-update) |
7fbc46a0 | 906 | (make-local-variable 'truncate-lines) |
b1d6ae0b | 907 | (setq truncate-lines t) |
5e5e5d42 | 908 | (setq overwrite-mode 'overwrite-mode-textual) |
b1d6ae0b JB |
909 | (use-local-map array-mode-map) |
910 | (run-hooks 'array-mode-hook)) | |
911 | ||
912 | \f | |
913 | ||
914 | ;;; Initialization functions. These are not interactive. | |
915 | ||
916 | (defun array-init-local-variables () | |
41674a5a | 917 | "Initialize the variables associated with the array in this buffer." |
b1d6ae0b JB |
918 | (array-init-max-row) |
919 | (array-init-max-column) | |
920 | (array-init-columns-per-line) | |
921 | (array-init-field-width) | |
922 | (array-init-rows-numbered) | |
923 | (array-init-line-length) | |
924 | (array-init-lines-per-row) | |
925 | (message "")) | |
926 | ||
927 | (defun array-init-max-row (&optional arg) | |
41674a5a DL |
928 | "Initialize the value of `array-max-row'." |
929 | (setq array-max-row | |
b1d6ae0b JB |
930 | (or arg (string-to-int (read-input "Number of array rows: "))))) |
931 | ||
932 | (defun array-init-max-column (&optional arg) | |
41674a5a DL |
933 | "Initialize the value of `array-max-column'." |
934 | (setq array-max-column | |
b1d6ae0b JB |
935 | (or arg (string-to-int (read-input "Number of array columns: "))))) |
936 | ||
937 | (defun array-init-columns-per-line (&optional arg) | |
41674a5a DL |
938 | "Initialize the value of `array-columns-per-line'." |
939 | (setq array-columns-per-line | |
b1d6ae0b JB |
940 | (or arg (string-to-int (read-input "Array columns per line: "))))) |
941 | ||
942 | (defun array-init-field-width (&optional arg) | |
41674a5a DL |
943 | "Initialize the value of `array-field-width'." |
944 | (setq array-field-width | |
b1d6ae0b JB |
945 | (or arg (string-to-int (read-input "Field width: "))))) |
946 | ||
947 | (defun array-init-rows-numbered (&optional arg) | |
41674a5a DL |
948 | "Initialize the value of `array-rows-numbered'." |
949 | (setq array-rows-numbered | |
b1d6ae0b JB |
950 | (or arg (y-or-n-p "Rows numbered? ")))) |
951 | ||
952 | (defun array-init-line-length (&optional arg) | |
41674a5a DL |
953 | "Initialize the value of `array-line-length'." |
954 | (setq array-line-length | |
b1d6ae0b | 955 | (or arg |
41674a5a | 956 | (* array-field-width array-columns-per-line)))) |
b1d6ae0b JB |
957 | |
958 | (defun array-init-lines-per-row (&optional arg) | |
41674a5a DL |
959 | "Initialize the value of `array-lines-per-row'." |
960 | (setq array-lines-per-row | |
b1d6ae0b | 961 | (or arg |
41674a5a DL |
962 | (+ (floor (1- array-max-column) array-columns-per-line) |
963 | (if array-rows-numbered 2 1))))) | |
c0274f38 | 964 | |
bcc7f26d KH |
965 | (provide 'array) |
966 | ||
c0274f38 | 967 | ;;; array.el ends here |