summaryrefslogtreecommitdiffstats
path: root/apps/plugins/frotz/files.c
blob: 1baaa4073fb90d94b886ff2939847761153b000d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
/* files.c - Transscription, recording and playback
 *	Copyright (c) 1995-1997 Stefan Jokisch
 *
 * Changes for Rockbox copyright 2009 Torne Wuff
 *
 * This file is part of Frotz.
 *
 * Frotz is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Frotz is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
 */

#include "frotz.h"

extern void set_more_prompts (bool);

extern bool is_terminator (zchar);

extern bool read_yes_or_no (const char *);

char script_name[MAX_PATH];
char command_name[MAX_PATH];

#ifdef __MSDOS__
extern char latin1_to_ibm[];
#endif

static int script_width = 0;

int sfp = -1;
int rfp = -1;
int pfp = -1;

/*
 * script_open
 *
 * Open the transscript file. 'AMFV' makes this more complicated as it
 * turns transscription on/off several times to exclude some text from
 * the transscription file. This wasn't a problem for the original V4
 * interpreters which always sent transscription to the printer, but it
 * means a problem to modern interpreters that offer to open a new file
 * every time transscription is turned on. Our solution is to append to
 * the old transscription file in V1 to V4, and to ask for a new file
 * name in V5+.
 *
 */

void script_open (void)
{
    static bool script_valid = FALSE;

    char new_name[MAX_PATH];

    h_flags &= ~SCRIPTING_FLAG;

    if (h_version >= V5 || !script_valid) {

	if (!os_read_file_name (new_name, script_name, FILE_SCRIPT))
	    goto done;

	strcpy (script_name, new_name);

    }

    /* Opening in "at" mode doesn't work for script_erase_input... */

    if ((sfp = rb->open (script_name, O_RDWR|O_CREAT)) != -1) {

	fseek (sfp, 0, SEEK_END);

	h_flags |= SCRIPTING_FLAG;

	script_valid = TRUE;
	ostream_script = TRUE;

	script_width = 0;

    } else print_string ("Cannot open file\n");

done:

    SET_WORD (H_FLAGS, h_flags)

}/* script_open */

/*
 * script_close
 *
 * Stop transscription.
 *
 */

void script_close (void)
{

    h_flags &= ~SCRIPTING_FLAG;
    SET_WORD (H_FLAGS, h_flags)

    fclose (sfp); ostream_script = FALSE;
    sfp = -1;

}/* script_close */

/*
 * script_new_line
 *
 * Write a newline to the transscript file.
 *
 */

void script_new_line (void)
{

    if (fputc ('\n', sfp) == EOF)
	script_close ();

    script_width = 0;

}/* script_new_line */

/*
 * script_char
 *
 * Write a single character to the transscript file.
 *
 */

void script_char (zchar c)
{

    if (c == ZC_INDENT && script_width != 0)
	c = ' ';

    if (c == ZC_INDENT)
	{ script_char (' '); script_char (' '); script_char (' '); return; }
    if (c == ZC_GAP)
	{ script_char (' '); script_char (' '); return; }

#ifdef __MSDOS__
    if (c >= ZC_LATIN1_MIN)
	c = latin1_to_ibm[c - ZC_LATIN1_MIN];
#endif

    fputc (c, sfp); script_width++;

}/* script_char */

/*
 * script_word
 *
 * Write a string to the transscript file.
 *
 */

void script_word (const zchar *s)
{
    int width;
    int i;

    if (*s == ZC_INDENT && script_width != 0)
	script_char (*s++);

    for (i = 0, width = 0; s[i] != 0; i++)

	if (s[i] == ZC_NEW_STYLE || s[i] == ZC_NEW_FONT)
	    i++;
	else if (s[i] == ZC_GAP)
	    width += 3;
	else if (s[i] == ZC_INDENT)
	    width += 2;
	else
	    width += 1;

    if (f_setup.script_cols != 0 && script_width + width > f_setup.script_cols) {

	if (*s == ' ' || *s == ZC_INDENT || *s == ZC_GAP)
	    s++;

	script_new_line ();

    }

    for (i = 0; s[i] != 0; i++)

	if (s[i] == ZC_NEW_FONT || s[i] == ZC_NEW_STYLE)
	    i++;
	else
	    script_char (s[i]);

}/* script_word */

/*
 * script_write_input
 *
 * Send an input line to the transscript file.
 *
 */

void script_write_input (const zchar *buf, zchar key)
{
    int width;
    int i;

    for (i = 0, width = 0; buf[i] != 0; i++)
	width++;

    if (f_setup.script_cols != 0 && script_width + width > f_setup.script_cols)
	script_new_line ();

    for (i = 0; buf[i] != 0; i++)
	script_char (buf[i]);

    if (key == ZC_RETURN)
	script_new_line ();

}/* script_write_input */

/*
 * script_erase_input
 *
 * Remove an input line from the transscript file.
 *
 */

void script_erase_input (const zchar *buf)
{
    int width;
    int i;

    for (i = 0, width = 0; buf[i] != 0; i++)
	width++;

    fseek (sfp, -width, SEEK_CUR); script_width -= width;

}/* script_erase_input */

/*
 * script_mssg_on
 *
 * Start sending a "debugging" message to the transscript file.
 *
 */

void script_mssg_on (void)
{

    if (script_width != 0)
	script_new_line ();

    script_char (ZC_INDENT);

}/* script_mssg_on */

/*
 * script_mssg_off
 *
 * Stop writing a "debugging" message.
 *
 */

void script_mssg_off (void)
{

    script_new_line ();

}/* script_mssg_off */

/*
 * record_open
 *
 * Open a file to record the player's input.
 *
 */

void record_open (void)
{
    char new_name[MAX_PATH];

    if (os_read_file_name (new_name, command_name, FILE_RECORD)) {

	strcpy (command_name, new_name);

	if ((rfp = rb->open (new_name, O_WRONLY|O_CREAT|O_TRUNC)) != -1)
	    ostream_record = TRUE;
	else
	    print_string ("Cannot open file\n");

    }

}/* record_open */

/*
 * record_close
 *
 * Stop recording the player's input.
 *
 */

void record_close (void)
{

    fclose (rfp); ostream_record = FALSE;
    rfp = -1;

}/* record_close */

/*
 * record_code
 *
 * Helper function for record_char.
 *
 */

static void record_code (int c, bool force_encoding)
{

    if (force_encoding || c == '[' || c < 0x20 || c > 0x7e) {

	int i;

	fputc ('[', rfp);

	for (i = 10000; i != 0; i /= 10)
	    if (c >= i || i == 1)
		fputc ('0' + (c / i) % 10, rfp);

	fputc (']', rfp);

    } else fputc (c, rfp);

}/* record_code */

/*
 * record_char
 *
 * Write a character to the command file.
 *
 */

static void record_char (zchar c)
{

    if (c != ZC_RETURN) {
	if (c < ZC_HKEY_MIN || c > ZC_HKEY_MAX) {
	    record_code (translate_to_zscii (c), FALSE);
	    if (c == ZC_SINGLE_CLICK || c == ZC_DOUBLE_CLICK) {
		record_code (mouse_x, TRUE);
		record_code (mouse_y, TRUE);
	    }
	} else record_code (1000 + c - ZC_HKEY_MIN, TRUE);
    }

}/* record_char */

/*
 * record_write_key
 *
 * Copy a keystroke to the command file.
 *
 */

void record_write_key (zchar key)
{

    record_char (key);

    if (fputc ('\n', rfp) == EOF)
	record_close ();

}/* record_write_key */

/*
 * record_write_input
 *
 * Copy a line of input to a command file.
 *
 */

void record_write_input (const zchar *buf, zchar key)
{
    zchar c;

    while ((c = *buf++) != 0)
	record_char (c);

    record_char (key);

    if (fputc ('\n', rfp) == EOF)
	record_close ();

}/* record_write_input */

/*
 * replay_open
 *
 * Open a file of commands for playback.
 *
 */

void replay_open (void)
{
    char new_name[MAX_PATH];

    if (os_read_file_name (new_name, command_name, FILE_PLAYBACK)) {

	strcpy (command_name, new_name);

	if ((pfp = rb->open (new_name, O_RDONLY)) != -1) {

	    set_more_prompts (read_yes_or_no ("Do you want MORE prompts"));

	    istream_replay = TRUE;

	} else print_string ("Cannot open file\n");

    }

}/* replay_open */

/*
 * replay_close
 *
 * Stop playback of commands.
 *
 */

void replay_close (void)
{

    set_more_prompts (TRUE);

    fclose (pfp); istream_replay = FALSE;
    pfp = -1;

}/* replay_close */

/*
 * replay_code
 *
 * Helper function for replay_key and replay_line.
 *
 */

static int replay_code (void)
{
    int c;

    if ((c = fgetc (pfp)) == '[') {

	int c2;

	c = 0;

	while ((c2 = fgetc (pfp)) != EOF && c2 >= '0' && c2 <= '9')
	    c = 10 * c + c2 - '0';

	return (c2 == ']') ? c : EOF;

    } else return c;

}/* replay_code */

/*
 * replay_char
 *
 * Read a character from the command file.
 *
 */

static zchar replay_char (void)
{
    int c;

    if ((c = replay_code ()) != EOF) {

	if (c != '\n') {

	    if (c < 1000) {

		c = translate_from_zscii (c);

		if (c == ZC_SINGLE_CLICK || c == ZC_DOUBLE_CLICK) {
		    mouse_x = replay_code ();
		    mouse_y = replay_code ();
		}

		return c;

	    } else return ZC_HKEY_MIN + c - 1000;
	}

	ungetc ('\n', pfp);

	return ZC_RETURN;

    } else return ZC_BAD;

}/* replay_char */

/*
 * replay_read_key
 *
 * Read a keystroke from a command file.
 *
 */

zchar replay_read_key (void)
{
    zchar key;

    key = replay_char ();

    if (fgetc (pfp) != '\n') {

	replay_close ();
	return ZC_BAD;

    } else return key;

}/* replay_read_key */

/*
 * replay_read_input
 *
 * Read a line of input from a command file.
 *
 */

zchar replay_read_input (zchar *buf)
{
    zchar c;

    for (;;) {

	c = replay_char ();

	if (c == ZC_BAD || is_terminator (c))
	    break;

	*buf++ = c;

    }

    *buf = 0;

    if (fgetc (pfp) != '\n') {

	replay_close ();
	return ZC_BAD;

    } else return c;

}/* replay_read_input */