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message.c @ 412c445

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RELEASE/1.0

Last change on this file since 412c445 was 412c445, checked in by Olly Betts <olly@…>, 14 years ago

NEWS,src/message.c: Remove a signal handler once it has fired to
prevent endless (or seemingly endless) cascades of error dialogs.

git-svn-id: file:///home/survex-svn/survex/branches/1.0@3462 4b37db11-9a0c-4f06-9ece-9ab7cdaee568

Property mode set to 100644

File size: 49.2 KB

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1	/* message.c
2	* Fairly general purpose message and error routines
3	* Copyright (C) 1993-2003,2004,2005,2006,2007 Olly Betts
4	*
5	* This program is free software; you can redistribute it and/or modify
6	* it under the terms of the GNU General Public License as published by
7	* the Free Software Foundation; either version 2 of the License, or
8	* (at your option) any later version.
9	*
10	* This program is distributed in the hope that it will be useful,
11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13	* GNU General Public License for more details.
14	*
15	* You should have received a copy of the GNU General Public License
16	* along with this program; if not, write to the Free Software
17	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18	*/
19
20	/#define DEBUG 1/
21
22	#ifdef HAVE_CONFIG_H
23	# include <config.h>
24	#endif
25
26	#include <stdio.h>
27	#include <stdlib.h>
28	#include <string.h>
29	#include <ctype.h>
30	#include <limits.h>
31	#include <errno.h>
32	#include <locale.h>
33
34	#include "cmdline.h"
35	#include "whichos.h"
36	#include "filename.h"
37	#include "message.h"
38	#include "osdepend.h"
39	#include "filelist.h"
40	#include "debug.h"
41
42	#ifdef AVEN
43	# include "aven.h"
44	#endif
45
46	#ifdef HAVE_SIGNAL
47	# ifdef HAVE_SETJMP_H
48	# include <setjmp.h>
49	static jmp_buf jmpbufSignal;
50	# include <signal.h>
51	# else
52	# undef HAVE_SIGNAL
53	# endif
54	#endif
55
56	#if (OS==WIN32)
57	# define WIN32_LEAN_AND_MEAN
58	# include <windows.h>
59	#elif (OS==MSDOS)
60	# include <dos.h>
61	# ifdef __DJGPP__
62	# include <dpmi.h>
63	# include <go32.h>
64	# include <sys/movedata.h>
65	# endif
66	#elif (OS==RISCOS)
67	# include "oslib/wimpreadsy.h"
68	# include "oslib/territory.h"
69	#elif (OS==UNIX)
70	# include <sys/types.h>
71	# include <sys/stat.h>
72	#endif
73
74	/* For funcs which want to be immune from messing around with different
75	* calling conventions */
76	#ifndef CDECL
77	# define CDECL
78	#endif
79
80	int msg_warnings = 0; /* keep track of how many warnings we've given */
81	int msg_errors = 0; /* and how many (non-fatal) errors */
82
83	/* in case osmalloc() fails before appname_copy is set up */
84	static const char *appname_copy = "anonymous program";
85
86	/* error code for failed osmalloc and osrealloc calls */
87	static void
88	outofmem(OSSIZE_T size)
89	{
90	fatalerror(/Out of memory (couldn't find %lu bytes)./1,
91	(unsigned long)size);
92	}
93
94	#ifdef TOMBSTONES
95	#define TOMBSTONE_SIZE 16
96	static const char tombstone[TOMBSTONE_SIZE] = "012345\xfftombstone";
97	#endif
98
99	/* malloc with error catching if it fails. Also allows us to write special
100	* versions easily eg for DOS EMS or MS Windows.
101	*/
102	void Far *
103	osmalloc(OSSIZE_T size)
104	{
105	void Far *p;
106	#ifdef TOMBSTONES
107	size += TOMBSTONE_SIZE * 2;
108	p = malloc(size);
109	#else
110	p = xosmalloc(size);
111	#endif
112	if (p == NULL) outofmem(size);
113	#ifdef TOMBSTONES
114	printf("osmalloc truep=%p truesize=%d\n", p, size);
115	memcpy(p, tombstone, TOMBSTONE_SIZE);
116	memcpy(p + size - TOMBSTONE_SIZE, tombstone, TOMBSTONE_SIZE);
117	(size_t )p = size;
118	p += TOMBSTONE_SIZE;
119	#endif
120	return p;
121	}
122
123	/* realloc with error catching if it fails. */
124	void Far *
125	osrealloc(void *p, OSSIZE_T size)
126	{
127	/* some pre-ANSI realloc implementations don't cope with a NULL pointer */
128	if (p == NULL) {
129	p = xosmalloc(size);
130	} else {
131	#ifdef TOMBSTONES
132	int true_size;
133	size += TOMBSTONE_SIZE * 2;
134	p -= TOMBSTONE_SIZE;
135	true_size = (size_t )p;
136	printf("osrealloc (in truep=%p truesize=%d)\n", p, true_size);
137	if (memcmp(p + sizeof(size_t), tombstone + sizeof(size_t),
138	TOMBSTONE_SIZE - sizeof(size_t)) != 0) {
139	printf("start tombstone for block %p, size %d corrupted!",
140	p + TOMBSTONE_SIZE, true_size - TOMBSTONE_SIZE * 2);
141	}
142	if (memcmp(p + true_size - TOMBSTONE_SIZE, tombstone,
143	TOMBSTONE_SIZE) != 0) {
144	printf("end tombstone for block %p, size %d corrupted!",
145	p + TOMBSTONE_SIZE, true_size - TOMBSTONE_SIZE * 2);
146	}
147	p = realloc(p, size);
148	if (p == NULL) outofmem(size);
149	printf("osrealloc truep=%p truesize=%d\n", p, size);
150	memcpy(p, tombstone, TOMBSTONE_SIZE);
151	memcpy(p + size - TOMBSTONE_SIZE, tombstone, TOMBSTONE_SIZE);
152	(size_t )p = size;
153	p += TOMBSTONE_SIZE;
154	#else
155	p = xosrealloc(p, size);
156	#endif
157	}
158	if (p == NULL) outofmem(size);
159	return p;
160	}
161
162	char Far *
163	osstrdup(const char *str)
164	{
165	char *p;
166	OSSIZE_T len;
167	len = strlen(str) + 1;
168	p = osmalloc(len);
169	memcpy(p, str, len);
170	return p;
171	}
172
173	/* osfree is usually just a macro in osalloc.h */
174	#ifdef TOMBSTONES
175	void
176	osfree(void *p)
177	{
178	int true_size;
179	if (!p) return;
180	p -= TOMBSTONE_SIZE;
181	true_size = (size_t )p;
182	printf("osfree truep=%p truesize=%d\n", p, true_size);
183	if (memcmp(p + sizeof(size_t), tombstone + sizeof(size_t),
184	TOMBSTONE_SIZE - sizeof(size_t)) != 0) {
185	printf("start tombstone for block %p, size %d corrupted!",
186	p + TOMBSTONE_SIZE, true_size - TOMBSTONE_SIZE * 2);
187	}
188	if (memcmp(p + true_size - TOMBSTONE_SIZE, tombstone,
189	TOMBSTONE_SIZE) != 0) {
190	printf("end tombstone for block %p, size %d corrupted!",
191	p + TOMBSTONE_SIZE, true_size - TOMBSTONE_SIZE * 2);
192	}
193	free(p);
194	}
195	#endif
196
197	#ifdef HAVE_SIGNAL
198
199	static int sigReceived;
200
201	/* for systems not using autoconf, assume the signal handler returns void
202	* unless specified elsewhere */
203	#ifndef RETSIGTYPE
204	# define RETSIGTYPE void
205	#endif
206
207	static CDECL RETSIGTYPE Far
208	report_sig(int sig)
209	{
210	sigReceived = sig;
211	longjmp(jmpbufSignal, 1);
212	}
213
214	static void
215	init_signals(void)
216	{
217	int en;
218	if (!setjmp(jmpbufSignal)) {
219	signal(SIGABRT, report_sig); /* abnormal termination eg abort() */
220	signal(SIGFPE, report_sig); /* arithmetic error eg /0 or overflow */
221	signal(SIGILL, report_sig); /* illegal function image eg illegal instruction */
222	signal(SIGSEGV, report_sig); /* illegal storage access eg access outside memory limits */
223	# ifdef SIGSTAK /* only on RISC OS AFAIK */
224	signal(SIGSTAK, report_sig); /* stack overflow */
225	# endif
226	return;
227	}
228
229	/* Remove that signal handler to avoid the possibility of an infinite loop.
230	*/
231	signal(sigReceived, SIG_DFL);
232
233	switch (sigReceived) {
234	case SIGABRT: en = /Abnormal termination/90; break;
235	case SIGFPE: en = /Arithmetic error/91; break;
236	case SIGILL: en = /Illegal instruction/92; break;
237	case SIGSEGV: en = /Bad memory access/94; break;
238	# ifdef SIGSTAK
239	case SIGSTAK: en = /Stack overflow/96; break;
240	# endif
241	default: en = /Unknown signal received/97; break;
242	}
243	fputsnl(msg(en), STDERR);
244
245	/* Any of the signals we catch indicates a bug */
246	fatalerror(/Bug in program detected! Please report this to the authors/11);
247
248	exit(EXIT_FAILURE);
249	}
250	#endif
251
252	static int
253	default_charset(void)
254	{
255	#if (OS==RISCOS)
256	/* RISCOS 3.1 and above CHARSET_RISCOS31 (ISO_8859_1 + extras in 128-159)
257	* RISCOS < 3.1 is ISO_8859_1 */
258	int version;
259	if (xwimpreadsysinfo_version(&version) != NULL) {
260	/* RISC OS 2 or some error (don't care which) */
261	return CHARSET_ISO_8859_1;
262	}
263
264	/* oddly wimp_VERSION_RO3 is RISC OS 3.1 */
265	if (version < wimp_VERSION_RO3) return CHARSET_ISO_8859_1;
266
267	return CHARSET_RISCOS31;
268	#elif (OS==MSDOS)
269	#ifdef __DJGPP__
270	__dpmi_regs r;
271	r.x.ax = 0x6501;
272	r.x.bx = 0xffff;
273	r.x.dx = 0xffff;
274	/* Use DJGPP's transfer buffer (which is at least 2K) */
275	r.x.es = __tb >> 4;
276	r.x.di = __tb & 0x0f;
277	r.x.cx = 2048;
278	/* bit 1 is the carry flag */
279	if (__dpmi_int(0x21, &r) != -1 && !(r.x.flags & 1)) {
280	unsigned short p;
281	dosmemget(__tb + 5, 2, &p);
282	#else
283	union REGS r;
284	struct SREGS s = { 0 };
285
286	unsigned char buf[48];
287	r.x.ax = 0x6501;
288	r.x.bx = 0xffff;
289	r.x.dx = 0xffff;
290	s.es = FP_SEG(buf);
291	r.x.di = FP_OFF(buf);
292	r.x.cx = 48;
293	intdosx(&r, &r, &s);
294	if (!r.x.cflag) {
295	unsigned short p = buf[5] \| (buf[6] << 8);
296	#endif
297	if (p == 437) return CHARSET_DOSCP437;
298	if (p == 850) return CHARSET_DOSCP850;
299	if (p == 912) return CHARSET_ISO_8859_2;
300	}
301	return CHARSET_USASCII;
302	#elif (OS==WIN32)
303	# ifdef AVEN
304	# define CODEPAGE GetACP()
305	# else
306	# define CODEPAGE GetConsoleOutputCP()
307	# endif
308	switch (CODEPAGE) {
309	case 1252: return CHARSET_WINCP1252;
310	case 1250: return CHARSET_WINCP1250;
311	case 850: return CHARSET_DOSCP850;
312	}
313	return CHARSET_USASCII;
314	#elif (OS==UNIX)
315	#if defined(XCAVEROT) \|\| defined(AVEN)
316	return CHARSET_ISO_8859_1;
317	#else
318	const char *p = getenv("LC_ALL");
319	if (p == NULL \|\| p[0] == '\0') {
320	p = getenv("LC_CTYPE");
321	if (p == NULL \|\| p[0] == '\0') {
322	p = msg_lang;
323	}
324	}
325
326	if (p) {
327	char *q = strchr(p, '.');
328	if (q) p = q + 1;
329	}
330
331	if (p) {
332	const char *chset = p;
333	size_t name_len;
334
335	while (p != '\0' && p != '@') p++;
336
337	name_len = p - chset;
338
339	if (name_len) {
340	int only_digit = 1;
341	size_t cnt;
342
343	for (cnt = 0; cnt < name_len; ++cnt)
344	if (isalpha((unsigned char)chset[cnt])) {
345	only_digit = 0;
346	break;
347	}
348
349	if (only_digit) goto iso;
350
351	switch (tolower(chset[0])) {
352	case 'i':
353	if (tolower(chset[1]) == 's' && tolower(chset[2]) == 'o') {
354	chset += 3;
355	iso:
356	if (strncmp(chset, "8859", 4) == 0) {
357	chset += 4;
358	while (chset < p && chset && !isdigit((unsigned char)chset))
359	chset++;
360	switch (atoi(chset)) {
361	case 1: return CHARSET_ISO_8859_1;
362	case 2: return CHARSET_ISO_8859_2;
363	case 15: return CHARSET_ISO_8859_15;
364	default: return CHARSET_USASCII;
365	}
366	}
367	}
368	break;
369	case 'u':
370	if (tolower(chset[1]) == 't' && tolower(chset[2]) == 'f') {
371	chset += 3;
372	while (chset < p && chset && !isdigit((unsigned char)chset))
373	chset++;
374	switch (atoi(chset)) {
375	case 8: return CHARSET_UTF8;
376	default: return CHARSET_USASCII;
377	}
378	}
379	}
380	}
381	}
382	return CHARSET_USASCII;
383	#endif
384	#else
385	# error Do not know operating system 'OS'
386	#endif
387	}
388
389	/* It seems that Swedish and maybe some other scandanavian languages don't
390	* transliterate ä to ae - but it seems there may be conflicting views
391	* on this...
392	*/
393	#define umlaut_to_e() 1
394
395	/* values <= 127 already dealt with */
396	static int
397	add_unicode(int charset, unsigned char *p, int value)
398	{
399	#ifdef DEBUG
400	fprintf(stderr, "add_unicode(%d, %p, %d)\n", charset, p, value);
401	#endif
402	if (value == 0) return 0;
403	switch (charset) {
404	case CHARSET_USASCII:
405	if (value < 0x80) {
406	*p = value;
407	return 1;
408	}
409	break;
410	case CHARSET_ISO_8859_1:
411	if (value < 0x100) {
412	*p = value;
413	return 1;
414	}
415	break;
416	case CHARSET_ISO_8859_2:
417	if (value >= 0xa0) {
418	int v = 0;
419	switch (value) {
420	case 0xa0: case 0xa4: case 0xa7: case 0xa8: case 0xad: case 0xb0:
421	case 0xb4: case 0xb8: case 0xc1: case 0xc2: case 0xc4: case 0xc7:
422	case 0xc9: case 0xcb: case 0xcd: case 0xce: case 0xd3: case 0xd4:
423	case 0xd6: case 0xd7: case 0xda: case 0xdc: case 0xdd: case 0xdf:
424	case 0xe1: case 0xe2: case 0xe4: case 0xe7: case 0xe9: case 0xeb:
425	case 0xed: case 0xee: case 0xf3: case 0xf4: case 0xf6: case 0xf7:
426	case 0xfa: case 0xfc: case 0xfd:
427	v = value; break;
428	case 0x104: v = '\xa1'; break;
429	case 0x2d8: v = '\xa2'; break;
430	case 0x141: v = '\xa3'; break;
431	case 0x13d: v = '\xa5'; break;
432	case 0x15a: v = '\xa6'; break;
433	case 0x160: v = '\xa9'; break;
434	case 0x15e: v = '\xaa'; break; /* Scedil */
435	case 0x164: v = '\xab'; break;
436	case 0x179: v = '\xac'; break;
437	case 0x17d: v = '\xae'; break;
438	case 0x17b: v = '\xaf'; break;
439	case 0x105: v = '\xb1'; break;
440	case 0x2db: v = '\xb2'; break;
441	case 0x142: v = '\xb3'; break;
442	case 0x13e: v = '\xb5'; break;
443	case 0x15b: v = '\xb6'; break;
444	case 0x2c7: v = '\xb7'; break;
445	case 0x161: v = '\xb9'; break;
446	case 0x15f: v = '\xba'; break; /* scedil */
447	case 0x165: v = '\xbb'; break;
448	case 0x17a: v = '\xbc'; break;
449	case 0x2dd: v = '\xbd'; break;
450	case 0x17e: v = '\xbe'; break;
451	case 0x17c: v = '\xbf'; break;
452	case 0x154: v = '\xc0'; break;
453	case 0x102: v = '\xc3'; break;
454	case 0x139: v = '\xc5'; break;
455	case 0x106: v = '\xc6'; break;
456	case 0x10c: v = '\xc8'; break;
457	case 0x118: v = '\xca'; break;
458	case 0x11a: v = '\xcc'; break;
459	case 0x10e: v = '\xcf'; break;
460	case 0x110: v = '\xd0'; break;
461	case 0x143: v = '\xd1'; break;
462	case 0x147: v = '\xd2'; break;
463	case 0x150: v = '\xd5'; break;
464	case 0x158: v = '\xd8'; break;
465	case 0x16e: v = '\xd9'; break;
466	case 0x170: v = '\xdb'; break;
467	case 0x162: v = '\xde'; break; /* &Tcedil; */
468	case 0x155: v = '\xe0'; break;
469	case 0x103: v = '\xe3'; break;
470	case 0x13a: v = '\xe5'; break;
471	case 0x107: v = '\xe6'; break;
472	case 0x10d: v = '\xe8'; break;
473	case 0x119: v = '\xea'; break;
474	case 0x11b: v = '\xec'; break;
475	case 0x10f: v = '\xef'; break;
476	case 0x111: v = '\xf0'; break;
477	case 0x144: v = '\xf1'; break;
478	case 0x148: v = '\xf2'; break;
479	case 0x151: v = '\xf5'; break;
480	case 0x159: v = '\xf8'; break;
481	case 0x16f: v = '\xf9'; break;
482	case 0x171: v = '\xfb'; break;
483	case 0x163: v = '\xfe'; break; /* tcedil */
484	case 0x2d9: v = '\xff'; break;
485	}
486	if (v == 0) break;
487	value = v;
488	}
489	*p = value;
490	return 1;
491	case CHARSET_ISO_8859_15:
492	switch (value) {
493	case 0xa4: case 0xa6: case 0xb0: case 0xc4:
494	case 0xd0: case 0xd4: case 0xd5: case 0xd6:
495	goto donthave;
496	case 0x152: value = 0xd4; break; /* &OElig; */
497	case 0x153: value = 0xd5; break; /* &oelig; */
498	#if 0
499	case 0x0: value = 0xa4; break; /* euro */
500	#endif
501	case 0x160: value = 0xa6; break; /* Scaron */
502	case 0x161: value = 0xb0; break; /* scaron */
503	case 0x17d: value = 0xc4; break; /* Zcaron */
504	case 0x17e: value = 0xd0; break; /* zcaron */
505	#if 0
506	case 0x0: value = 0xd6; break; /* Ydiersis */
507	#endif
508	}
509	if (value < 0x100) {
510	*p = value;
511	return 1;
512	}
513	donthave:
514	break;
515	#if (OS==RISCOS)
516	case CHARSET_RISCOS31:
517	/* RISC OS 3.1 (and later) extensions to ISO-8859-1 */
518	switch (value) {
519	case 0x152: value = 0x9a; break; /* &OElig; */
520	case 0x153: value = 0x9b; break; /* &oelig; */
521	#if 0
522	case 0x174: value = 0x81; break; /* &Wcirc; */
523	case 0x175: value = 0x82; break; /* &wcirc; */
524	case 0x176: value = 0x85; break; /* &Ycirc; */
525	case 0x177: value = 0x86; break; /* &ycirc; */
526	#endif
527	}
528	if (value < 0x100) {
529	*p = value;
530	return 1;
531	}
532	break;
533	#elif (OS==WIN32)
534	case CHARSET_WINCP1250:
535	/* MS Windows rough equivalent to ISO-8859-2 */
536	if (value >= 0x80) {
537	int v = 0;
538	switch (value) {
539	case 0xa0: case 0xa4: case 0xa6: case 0xa7: case 0xa8: case 0xa9:
540	case 0xab: case 0xac: case 0xad: case 0xae: case 0xb0: case 0xb1:
541	case 0xb4: case 0xb5: case 0xb6: case 0xb7: case 0xb8: case 0xbb:
542	case 0xc1: case 0xc2: case 0xc4: case 0xc7: case 0xc9: case 0xcb:
543	case 0xcd: case 0xce: case 0xd3: case 0xd4: case 0xd6: case 0xd7:
544	case 0xda: case 0xdc: case 0xdd: case 0xdf: case 0xe1: case 0xe2:
545	case 0xe4: case 0xe7: case 0xe9: case 0xeb: case 0xed: case 0xee:
546	case 0xf3: case 0xf4: case 0xf6: case 0xf7: case 0xfa: case 0xfc:
547	case 0xfd:
548	v = value; break;
549	case 0x20ac: v = '\x80'; break;
550	case 0x201a: v = '\x82'; break;
551	case 0x201e: v = '\x84'; break;
552	case 0x2026: v = '\x85'; break;
553	case 0x2020: v = '\x86'; break;
554	case 0x2021: v = '\x87'; break;
555	case 0x2030: v = '\x89'; break;
556	case 0x0160: v = '\x8a'; break;
557	case 0x2039: v = '\x8b'; break;
558	case 0x015a: v = '\x8c'; break;
559	case 0x0164: v = '\x8d'; break;
560	case 0x017d: v = '\x8e'; break;
561	case 0x0179: v = '\x8f'; break;
562	case 0x2018: v = '\x91'; break;
563	case 0x2019: v = '\x92'; break;
564	case 0x201c: v = '\x93'; break;
565	case 0x201d: v = '\x94'; break;
566	case 0x2022: v = '\x95'; break;
567	case 0x2013: v = '\x96'; break;
568	case 0x2014: v = '\x97'; break;
569	case 0x2122: v = '\x99'; break;
570	case 0x0161: v = '\x9a'; break;
571	case 0x203a: v = '\x9b'; break;
572	case 0x015b: v = '\x9c'; break;
573	case 0x0165: v = '\x9d'; break;
574	case 0x017e: v = '\x9e'; break;
575	case 0x017a: v = '\x9f'; break;
576	case 0x02c7: v = '\xa1'; break;
577	case 0x02d8: v = '\xa2'; break;
578	case 0x0141: v = '\xa3'; break;
579	case 0x0104: v = '\xa5'; break;
580	case 0x015e: v = '\xaa'; break; /* Scedil */
581	case 0x017b: v = '\xaf'; break;
582	case 0x02db: v = '\xb2'; break;
583	case 0x0142: v = '\xb3'; break;
584	case 0x0105: v = '\xb9'; break;
585	case 0x015f: v = '\xba'; break; /* scedil */
586	case 0x013d: v = '\xbc'; break;
587	case 0x02dd: v = '\xbd'; break;
588	case 0x013e: v = '\xbe'; break;
589	case 0x017c: v = '\xbf'; break;
590	case 0x0154: v = '\xc0'; break;
591	case 0x0102: v = '\xc3'; break;
592	case 0x0139: v = '\xc5'; break;
593	case 0x0106: v = '\xc6'; break;
594	case 0x010c: v = '\xc8'; break;
595	case 0x0118: v = '\xca'; break;
596	case 0x011a: v = '\xcc'; break;
597	case 0x010e: v = '\xcf'; break;
598	case 0x0110: v = '\xd0'; break;
599	case 0x0143: v = '\xd1'; break;
600	case 0x0147: v = '\xd2'; break;
601	case 0x0150: v = '\xd5'; break;
602	case 0x0158: v = '\xd8'; break;
603	case 0x016e: v = '\xd9'; break;
604	case 0x0170: v = '\xdb'; break;
605	case 0x0162: v = '\xde'; break; /* &Tcedil; */
606	case 0x0155: v = '\xe0'; break;
607	case 0x0103: v = '\xe3'; break;
608	case 0x013a: v = '\xe5'; break;
609	case 0x0107: v = '\xe6'; break;
610	case 0x010d: v = '\xe8'; break;
611	case 0x0119: v = '\xea'; break;
612	case 0x011b: v = '\xec'; break;
613	case 0x010f: v = '\xef'; break;
614	case 0x0111: v = '\xf0'; break;
615	case 0x0144: v = '\xf1'; break;
616	case 0x0148: v = '\xf2'; break;
617	case 0x0151: v = '\xf5'; break;
618	case 0x0159: v = '\xf8'; break;
619	case 0x016f: v = '\xf9'; break;
620	case 0x0171: v = '\xfb'; break;
621	case 0x0163: v = '\xfe'; break; /* tcedil */
622	case 0x02d9: v = '\xff'; break;
623	}
624	if (v == 0) break;
625	value = v;
626	}
627	*p = value;
628	return 1;
629	case CHARSET_WINCP1252:
630	/* MS Windows extensions to ISO-8859-1 */
631	switch (value) {
632	case 0x152: value = 0x8c; break; /* &OElig; */
633	case 0x153: value = 0x9c; break; /* &oelig; */
634	#if 0
635	/* there are a few other obscure ones we don't currently need */
636	#endif
637	}
638	if (value < 0x100) {
639	*p = value;
640	return 1;
641	}
642	break;
643	#endif
644	#if (OS==MSDOS)
645	case CHARSET_DOSCP437: {
646	unsigned char uni2dostab[] = {
647	255, 173, 155, 156, 0, 157, 0, 0,
648	0, 0, 166, 174, 170, 0, 0, 0,
649	248, 241, 253, 0, 0, 230, 0, 250,
650	0, 0, 167, 175, 172, 171, 0, 168,
651	0, 0, 0, 0, 142, 143, 146, 128,
652	0, 144, 0, 0, 0, 0, 0, 0,
653	0, 165, 0, 0, 0, 0, 153, 0,
654	0, 0, 0, 0, 154, 0, 0, 225,
655	133, 160, 131, 0, 132, 134, 145, 135,
656	138, 130, 136, 137, 141, 161, 140, 139,
657	0, 164, 149, 162, 147, 0, 148, 246,
658	0, 151, 163, 150, 129, 0, 0, 152,
659	};
660	if (value >= 160 && value < 256) {
661	int ch = (int)uni2dostab[value - 160];
662	if (!ch) break;
663	*p = ch;
664	return 1;
665	}
666	#if 0
667	switch (value) {
668	case 8359: p = 158; return 1; / PESETA SIGN */
669	case 402: p = 159; return 1; / LATIN SMALL LETTER F WITH HOOK */
670	case 8976: p = 169; return 1; / REVERSED NOT SIGN */
671	case 945: p = 224; return 1; / GREEK SMALL LETTER ALPHA */
672	case 915: p = 226; return 1; / GREEK CAPITAL LETTER GAMMA */
673	case 960: p = 227; return 1; / GREEK SMALL LETTER PI */
674	case 931: p = 228; return 1; / GREEK CAPITAL LETTER SIGMA */
675	case 963: p = 229; return 1; / GREEK SMALL LETTER SIGMA */
676	case 964: p = 231; return 1; / GREEK SMALL LETTER TAU */
677	case 934: p = 232; return 1; / GREEK CAPITAL LETTER PHI */
678	case 920: p = 233; return 1; / GREEK CAPITAL LETTER THETA */
679	case 937: p = 234; return 1; / GREEK CAPITAL LETTER OMEGA */
680	case 948: p = 235; return 1; / GREEK SMALL LETTER DELTA */
681	case 8734: p = 236; return 1; / INFINITY */
682	case 966: p = 237; return 1; / GREEK SMALL LETTER PHI */
683	case 949: p = 238; return 1; / GREEK SMALL LETTER EPSILON */
684	case 8745: p = 239; return 1; / INTERSECTION */
685	case 8801: p = 240; return 1; / IDENTICAL TO */
686	case 8805: p = 242; return 1; / GREATER-THAN OR EQUAL TO */
687	case 8804: p = 243; return 1; / LESS-THAN OR EQUAL TO */
688	case 8992: p = 244; return 1; / TOP HALF INTEGRAL */
689	case 8993: p = 245; return 1; / BOTTOM HALF INTEGRAL */
690	case 8776: p = 247; return 1; / ALMOST EQUAL TO */
691	case 8729: p = 249; return 1; / BULLET OPERATOR */
692	case 8730: p = 251; return 1; / SQUARE ROOT */
693	case 8319: p = 252; return 1; / SUPERSCRIPT LATIN SMALL LETTER N */
694	case 9632: p = 254; return 1; / BLACK SQUARE */
695	}
696	#endif
697	break;
698	}
699	#endif
700	#if (OS==MSDOS \|\| OS==WIN32)
701	case CHARSET_DOSCP850: {
702	unsigned char uni2dostab[] = {
703	255, 173, 189, 156, 207, 190, 221, 245,
704	249, 184, 166, 174, 170, 240, 169, 238,
705	248, 241, 253, 252, 239, 230, 244, 250,
706	247, 251, 167, 175, 172, 171, 243, 168,
707	183, 181, 182, 199, 142, 143, 146, 128,
708	212, 144, 210, 211, 222, 214, 215, 216,
709	209, 165, 227, 224, 226, 229, 153, 158,
710	157, 235, 233, 234, 154, 237, 232, 225,
711	133, 160, 131, 198, 132, 134, 145, 135,
712	138, 130, 136, 137, 141, 161, 140, 139,
713	208, 164, 149, 162, 147, 228, 148, 246,
714	155, 151, 163, 150, 129, 236, 231, 152
715	};
716	if (value >= 160 && value < 256) {
717	*p = (int)uni2dostab[value - 160];
718	return 1;
719	}
720	#if 0
721	if (value == 305) { /* LATIN SMALL LETTER DOTLESS I */
722	*p = 213;
723	return 1;
724	}
725	if (value == 402) { /* LATIN SMALL LETTER F WITH HOOK */
726	*p = 159;
727	return 1;
728	}
729	#endif
730	break;
731	}
732	#endif
733	}
734	/* Transliterate characters we can't represent */
735	#ifdef DEBUG
736	fprintf(stderr, "transliterate `%c' 0x%x\n", value, value);
737	#endif
738	switch (value) {
739	case 160:
740	*p = ' '; return 1;
741	case 161 /* ¡ */:
742	*p = '!'; return 1;
743	case 171 /* « */:
744	p[1] = *p = '<'; return 2;
745	case 187 /* » */:
746	p[1] = *p = '>'; return 2;
747	case 191 /* ¿ */:
748	*p = '?'; return 1;
749	case 192 /* À /: case 193 / Á /: case 194 / Â /: case 195 / Ã */:
750	*p = 'A'; return 1;
751	case 197 /* Å */:
752	p[1] = *p = 'A'; return 2;
753	case 196 /* Ä /: / Ä */
754	*p = 'A';
755	if (!umlaut_to_e()) return 1;
756	p[1] = 'E'; return 2;
757	case 198 /* Æ */:
758	*p = 'A'; p[1] = 'E'; return 2;
759	case 199 /* Ç /: case 268: / &Ccaron; */
760	*p = 'C'; return 1;
761	case 270: /* &Dcaron; */
762	*p = 'D'; return 1;
763	case 200 /* È /: case 201 / É /: case 202 / Ê /: case 203 / Ë */:
764	*p = 'E'; return 1;
765	case 204 /* Ì /: case 205 / Í /: case 206 / Î /: case 207 / Ï */:
766	*p = 'I'; return 1;
767	case 208 /* Ð /: case 222 / Þ */:
768	*p = 'T'; p[1] = 'H'; return 2;
769	case 315: /* &Lacute; */
770	case 317: /* &Lcaron; */
771	*p = 'L'; return 1;
772	case 209 /* Ñ */:
773	*p = 'N'; return 1;
774	case 210 /* Ò /: case 211 / Ó /: case 212 / Ô /: case 213 / Õ */:
775	*p = 'O'; return 1;
776	case 214 /* Ö /: / Ö / case 0x152: / &OElig; */
777	*p = 'O'; p[1] = 'E'; return 2;
778	case 352: /* &Scaron; */
779	case 0x15e: /* &Scedil; */
780	*p = 'S'; return 1;
781	case 0x162: /* &Tcedil; */
782	case 0x164: /* &Tcaron; */
783	*p = 'T'; return 1;
784	case 217 /* Ù /: case 218 / Ú /: case 219 / Û */:
785	*p = 'U'; return 1;
786	case 220 /* Ü /: / Ü */
787	*p = 'U'; p[1] = 'E'; return 2;
788	case 221 /* Ý */:
789	*p = 'Y'; return 1;
790	case 381: /* &Zcaron; */
791	*p = 'Z'; return 1;
792	case 223 /* ß */:
793	p[1] = *p = 's'; return 2;
794	case 224 /* à /: case 225 / á /: case 226 / â /: case 227 / ã */:
795	case 259: /* &abreve; */
796	*p = 'a'; return 1;
797	case 228 /* ä /: / ä / case 230 / æ */:
798	*p = 'a'; p[1] = 'e'; return 2;
799	case 229 /* å */:
800	p[1] = *p = 'a'; return 2;
801	case 231 /* ç /: case 269 / &ccaron; */:
802	*p = 'c'; return 1;
803	case 271: /* &dcaron; */
804	*p = 'd'; return 1;
805	case 232 /* è /: case 233 / é /: case 234 / ê /: case 235 / ë */:
806	case 283 /* &ecaron; */:
807	*p = 'e'; return 1;
808	case 236 /* ì /: case 237 / í /: case 238 / î /: case 239 / ï */:
809	*p = 'i'; return 1;
810	case 316 /* &lacute; */:
811	case 318 /* &lcaron; */:
812	*p = 'l'; return 1;
813	case 241 /* ñ /: case 328 / &ncaron; */:
814	*p = 'n'; return 1;
815	case 345: /* &rcaron; */
816	*p = 'r'; return 1;
817	case 353: /* &scaron; */
818	case 0x15f: /* &scedil; */
819	*p = 's'; return 1;
820	case 357: /* &tcaron; */
821	case 0x163: /* &tcedil; */
822	*p = 't'; return 1;
823	case 240 /* ð /: case 254 / þ */:
824	*p = 't'; p[1] = 'h'; return 2;
825	case 242 /* ò /: case 243 / ó /: case 244 / ô /: case 245 / õ */:
826	*p = 'o'; return 1;
827	case 246 /* ö /: / ö / case 0x153: / &oelig; */
828	*p = 'o'; p[1] = 'e'; return 2;
829	case 249 /* ù /: case 250 / ú /: case 251 / û */:
830	case 367 /* &uring; */:
831	*p = 'u'; return 1;
832	case 252 /* ü /: / ü */
833	*p = 'u'; p[1] = 'e'; return 2;
834	case 253 /* ý /: case 255 / ÿ */:
835	*p = 'y'; return 1;
836	case 382: /* &zcaron; */
837	*p = 'z'; return 1;
838	}
839	#ifdef DEBUG
840	fprintf(stderr, "failed to transliterate\n");
841	#endif
842	return 0;
843	}
844
845	#if (OS==UNIX) && defined(DATADIR) && defined(PACKAGE)
846	/* Under Unix, we compile in the configured path */
847	static const char *pth_cfg_files = DATADIR "/" PACKAGE;
848	#else
849	/* On other platforms, we fall back on looking in the current directory */
850	static const char *pth_cfg_files = "";
851	#endif
852
853	static int num_msgs = 0;
854	static char **msg_array = NULL;
855
856	const char *msg_lang = NULL;
857	const char *msg_lang2 = NULL;
858
859	static char **
860	parse_msgs(int n, unsigned char *p, int charset_code) {
861	int i;
862
863	char *msgs = osmalloc(n sizeof(char *));
864
865	for (i = 0; i < n; i++) {
866	unsigned char *to = p;
867	int ch;
868	msgs[i] = (char *)p;
869
870	/* If we want UTF8 anyway, we just need to find the start of each
871	* message */
872	if (charset_code == CHARSET_UTF8) {
873	p += strlen((char *)p) + 1;
874	continue;
875	}
876
877	while ((ch = *p++) != 0) {
878	/* A byte in the range 0x80-0xbf or 0xf0-0xff isn't valid in
879	* this state, (0xf0-0xfd mean values > 0xffff) so treat as
880	* literal and try to resync so we cope better when fed
881	* non-utf-8 data. Similarly we abandon a multibyte sequence
882	* if we hit an invalid character. */
883	if (ch >= 0xc0 && ch < 0xf0) {
884	int ch1 = *p;
885	if ((ch1 & 0xc0) != 0x80) goto resync;
886
887	if (ch < 0xe0) {
888	/* 2 byte sequence */
889	ch = ((ch & 0x1f) << 6) \| (ch1 & 0x3f);
890	p++;
891	} else {
892	/* 3 byte sequence */
893	int ch2 = p[1];
894	if ((ch2 & 0xc0) != 0x80) goto resync;
895	ch = ((ch & 0x1f) << 12) \| ((ch1 & 0x3f) << 6) \| (ch2 & 0x3f);
896	p += 2;
897	}
898	}
899
900	resync:
901
902	if (ch < 127) {
903	*to++ = (char)ch;
904	} else {
905	/* We assume an N byte UTF-8 code never transliterates to more
906	* than N characters (so we can't transliterate © to (C) or
907	* ® to (R) for example) */
908	to += add_unicode(charset_code, to, ch);
909	}
910	}
911	*to++ = '\0';
912	}
913	return msgs;
914	}
915
916	/* This is the name of the default language, which can be set like so:
917	* ./configure --enable-defaultlang=fr
918	*/
919	#ifdef DEFAULTLANG
920	/* No point extracting these errors as they won't get used if file opens */
921	# include "../lib/defaultlang.h"
922	#else
923	#define N_DONTEXTRACTMSGS 5
924	static unsigned char dontextractmsgs[] =
925	"Can't open message file `%s' using path `%s'\0"/1000/
926	"Problem with message file `%s'\0"/1001/
927	"I don't understand this message file version\0"/1002/
928	"Message file truncated?\0"/1003/
929	"Out of memory (couldn't find %lu bytes).\0"/1004/;
930	#endif
931
932	static char **dontextract = NULL;
933
934	static void
935	parse_msg_file(int charset_code)
936	{
937	FILE *fh;
938	unsigned char header[20];
939	int i;
940	unsigned len;
941	unsigned char *p;
942	char fnm, s;
943	int n;
944
945	#ifdef DEBUG
946	fprintf(stderr, "parse_msg_file(%d)\n", charset_code);
947	#endif
948
949	/* sort out messages we need to print if we can't open the message file */
950	dontextract = parse_msgs(N_DONTEXTRACTMSGS, dontextractmsgs, charset_code);
951
952	fnm = osstrdup(msg_lang);
953	/* trim off charset from stuff like "de_DE.iso8859_1" */
954	s = strchr(fnm, '.');
955	if (s) *s = '\0';
956
957	fh = fopenWithPthAndExt(pth_cfg_files, fnm, EXT_SVX_MSG, "rb", NULL);
958
959	if (!fh) {
960	/* e.g. if 'en_GB' is unknown, see if we know 'en' */
961	if (strlen(fnm) > 3 && fnm[2] == '_') {
962	fnm[2] = '\0';
963	fh = fopenWithPthAndExt(pth_cfg_files, fnm, EXT_SVX_MSG, "rb", NULL);
964	if (!fh) fnm[2] = '_'; /* for error reporting */
965	}
966	}
967
968	if (!fh) {
969	fatalerror(/Can't open message file `%s' using path `%s'/1000,
970	fnm, pth_cfg_files);
971	}
972
973	if (fread(header, 1, 20, fh) < 20 \|\|
974	memcmp(header, "Svx\nMsg\r\n\xfe\xff", 12) != 0) {
975	fatalerror(/Problem with message file `%s'/1001, fnm);
976	}
977
978	if (header[12] != 0)
979	fatalerror(/I don't understand this message file version/1002);
980
981	n = (header[14] << 8) \| header[15];
982
983	len = 0;
984	for (i = 16; i < 20; i++) len = (len << 8) \| header[i];
985
986	p = osmalloc(len);
987	if (fread(p, 1, len, fh) < len)
988	fatalerror(/Message file truncated?/1003);
989
990	fclose(fh);
991
992	#ifdef DEBUG
993	fprintf(stderr, "fnm = `%s', n = %d, len = %d\n", fnm, n, len);
994	#endif
995	osfree(fnm);
996
997	msg_array = parse_msgs(n, p, charset_code);
998	num_msgs = n;
999	}
1000
1001	const char *
1002	msg_cfgpth(void)
1003	{
1004	return pth_cfg_files;
1005	}
1006
1007	const char *
1008	msg_appname(void)
1009	{
1010	return appname_copy;
1011	}
1012
1013	void
1014	msg_init(char * const *argv)
1015	{
1016	char *p;
1017	SVX_ASSERT(argv);
1018
1019	#ifdef HAVE_SIGNAL
1020	init_signals();
1021	#endif
1022	/* Point to argv[0] itself so we report a more helpful error if the
1023	* code to work out the clean appname generates a signal */
1024	appname_copy = argv[0];
1025	#if (OS == UNIX)
1026	/* use name as-is on Unix - programs run from path get name as supplied */
1027	appname_copy = osstrdup(argv[0]);
1028	#else
1029	/* use the lower-cased leafname on other platforms */
1030	p = leaf_from_fnm(argv[0]);
1031	appname_copy = p;
1032	while (*p) {
1033	p = tolower(p);
1034	++p;
1035	}
1036	#endif
1037
1038	/* shortcut --version so you can check the version number even when the
1039	* correct message file can't be found... */
1040	if (argv[1] && strcmp(argv[1], "--version") == 0) {
1041	cmdline_version();
1042	exit(0);
1043	}
1044	if (argv[0]) {
1045	#ifdef MACOSX_BUNDLE
1046	/* If we're being built into a bundle, always look relative to
1047	* the path to the binary. */
1048	char * pth = path_from_fnm(argv[0]);
1049	pth_cfg_files = use_path(pth, "share/survex");
1050	osfree(pth);
1051	#elif (OS==UNIX) && defined(DATADIR) && defined(PACKAGE)
1052	bool free_pth = fFalse;
1053	char *pth = getenv("srcdir");
1054	if (!pth \|\| !pth[0]) {
1055	pth = path_from_fnm(argv[0]);
1056	free_pth = fTrue;
1057	}
1058	if (pth[0]) {
1059	struct stat buf;
1060	#if defined(__GNUC__) && defined(__APPLE_CC__)
1061	/* On MacOS X the programs may be installed anywhere, with the
1062	* share directory and the binaries in the same directory. */
1063	p = use_path(pth, "share/survex/en.msg");
1064	if (lstat(p, &buf) == 0 && S_ISREG(buf.st_mode)) {
1065	pth_cfg_files = use_path(pth, "share/survex");
1066	goto macosx_got_msg;
1067	}
1068	osfree(p);
1069	#endif
1070	/* If we're run with an explicit path, check if "../lib/en.msg"
1071	* from the program's path exists, and if so look there for
1072	* support files - this allows us to test binaries in the build
1073	* tree easily. */
1074	p = use_path(pth, "../lib/en.msg");
1075	if (lstat(p, &buf) == 0) {
1076	#ifdef S_ISDIR
1077	/* POSIX way */
1078	if (S_ISREG(buf.st_mode)) {
1079	pth_cfg_files = use_path(pth, "../lib");
1080	}
1081	#else
1082	/* BSD way */
1083	if ((buf.st_mode & S_IFMT) == S_IFREG) {
1084	pth_cfg_files = use_path(pth, "../lib");
1085	}
1086	#endif
1087	}
1088	#if defined(__GNUC__) && defined(__APPLE_CC__)
1089	macosx_got_msg:
1090	#endif
1091	osfree(p);
1092	}
1093
1094	if (free_pth) osfree(pth);
1095	#elif (OS==WIN32)
1096	DWORD len = 256;
1097	char buf = NULL, modname;
1098	while (1) {
1099	DWORD got;
1100	buf = osrealloc(buf, len);
1101	got = GetModuleFileName(NULL, buf, len);
1102	if (got < len) break;
1103	len += len;
1104	}
1105	modname = buf;
1106	/* Strange Win32 nastiness - strip prefix "\\?\" if present */
1107	if (strncmp(modname, "\\\\?\\", 4) == 0) modname += 4;
1108	pth_cfg_files = path_from_fnm(modname);
1109	osfree(buf);
1110	#else
1111	/* Get the path to the support files from argv[0] */
1112	pth_cfg_files = path_from_fnm(argv[0]);
1113	#endif
1114	}
1115
1116	msg_lang = getenv("SURVEXLANG");
1117	#ifdef DEBUG
1118	fprintf(stderr, "msg_lang = %p (= \"%s\")\n", msg_lang, msg_lang?msg_lang:"(null)");
1119	#endif
1120
1121	if (!msg_lang \|\| !*msg_lang) {
1122	msg_lang = getenv("LC_MESSAGES");
1123	if (!msg_lang \|\| !*msg_lang) {
1124	msg_lang = getenv("LANG");
1125	/* Something (AutoCAD?) on Microsoft Windows sets LANG to a number. */
1126	if (msg_lang && !isalpha(msg_lang[0])) msg_lang = NULL;
1127	}
1128	if (!msg_lang \|\| !*msg_lang) {
1129	#if (OS==WIN32)
1130	LCID locid;
1131	#elif (OS==RISCOS)
1132	territory_t t;
1133	#endif
1134	#ifdef DEFAULTLANG
1135	msg_lang = STRING(DEFAULTLANG);
1136	#else
1137	msg_lang = "en";
1138	#endif
1139	#if (OS==WIN32)
1140	locid = GetUserDefaultLCID();
1141	if (locid) {
1142	WORD langid = LANGIDFROMLCID(locid);
1143	switch (PRIMARYLANGID(langid)) {
1144	/* older mingw compilers don't seem to supply this value */
1145	#ifndef LANG_CATALAN
1146	# define LANG_CATALAN 0x03
1147	#endif
1148	case LANG_CATALAN:
1149	msg_lang = "ca";
1150	break;
1151	case LANG_CHINESE:
1152	msg_lang = "zh";
1153	break;
1154	case LANG_ENGLISH:
1155	if (SUBLANGID(langid) == SUBLANG_ENGLISH_US)
1156	msg_lang = "en_US";
1157	else
1158	msg_lang = "en";
1159	break;
1160	case LANG_FRENCH:
1161	msg_lang = "fr";
1162	break;
1163	case LANG_GERMAN:
1164	switch (SUBLANGID(langid)) {
1165	case SUBLANG_GERMAN_SWISS:
1166	msg_lang = "de_CH";
1167	break;
1168	case SUBLANG_GERMAN:
1169	msg_lang = "de_DE";
1170	break;
1171	default:
1172	msg_lang = "de";
1173	}
1174	break;
1175	case LANG_ITALIAN:
1176	msg_lang = "it";
1177	break;
1178	case LANG_PORTUGUESE:
1179	if (SUBLANGID(langid) == SUBLANG_PORTUGUESE_BRAZILIAN)
1180	msg_lang = "pt_BR";
1181	else
1182	msg_lang = "pt";
1183	break;
1184	case LANG_ROMANIAN:
1185	msg_lang = "ro";
1186	break;
1187	case LANG_SLOVAK:
1188	msg_lang = "sk";
1189	break;
1190	case LANG_SPANISH:
1191	msg_lang = "es";
1192	break;
1193	}
1194	}
1195	#elif (OS==RISCOS)
1196	if (!xterritory_number(&t)) switch (t) {
1197	case 1: /* UK */
1198	case 2: /* Master */
1199	case 3: /* Compact */
1200	case 17: /* Canada1 */
1201	case 19: /* Canada */
1202	case 22: /* Ireland */
1203	msg_lang = "en";
1204	break;
1205	case 4: /* Italy */
1206	msg_lang = "it";
1207	break;
1208	case 5: /* Spain (or ca) */
1209	case 27: /* Mexico */
1210	case 28: /* LatinAm (or pt_BR) */
1211	msg_lang = "es";
1212	break;
1213	case 6: /* France */
1214	case 18: /* Canada2 */
1215	msg_lang = "fr";
1216	break;
1217	case 7: /* Germany */
1218	msg_lang = "de_DE";
1219	break;
1220	case 8: /* Portugal */
1221	msg_lang = "pt";
1222	break;
1223	case 23: /* Hong Kong */
1224	msg_lang = "zh";
1225	break;
1226	case 48: /* USA */
1227	msg_lang = "en_US";
1228	break;
1229	#if 0
1230	case 9: /* Esperanto */
1231	case 10: /* Greece */
1232	case 11: /* Sweden */
1233	case 12: /* Finland */
1234	case 13: /* Unused */
1235	case 14: /* Denmark */
1236	case 15: /* Norway */
1237	case 16: /* Iceland */
1238	case 20: /* Turkey */
1239	case 21: /* Arabic */
1240	case 24: /* Russia */
1241	case 25: /* Russia2 */
1242	case 26: /* Israel */
1243	#endif
1244	}
1245	#elif (OS==MSDOS)
1246	{
1247	int country_code;
1248	# ifdef __DJGPP__
1249	__dpmi_regs r;
1250	r.x.ax = 0x6501;
1251	r.x.bx = 0xffff;
1252	r.x.dx = 0xffff;
1253	/* Use DJGPP's transfer buffer (which is at least 2K) */
1254	r.x.es = __tb >> 4;
1255	r.x.di = __tb & 0x0f;
1256	r.x.cx = 2048;
1257	/* bit 1 is the carry flag */
1258	if (__dpmi_int(0x21, &r) != -1 && !(r.x.flags & 1)) {
1259	unsigned short val;
1260	dosmemget(__tb + 3, 2, &val);
1261	country_code = val;
1262	# else
1263	union REGS r;
1264	r.x.ax = 0x3800; /* get current country info */
1265	r.x.dx = 0;
1266	intdos(&r, &r);
1267	if (!r.x.cflag) {
1268	country_code = r.x.bx;
1269	# endif
1270	/* List of country codes taken from:
1271	* http://www.delorie.com/djgpp/doc/rbinter/it/00/14.html */
1272	/* The mappings here are guesses at best in most cases.
1273	* In a lot of cases we pick a language because we have
1274	* a translation in it, rather than because it's the most
1275	* widely used or understood in that country. */
1276	/* Improvements welcome */
1277	switch (country_code) {
1278	case 1: /* United States */
1279	case 670: /* Saipan / N. Mariana Island */
1280	case 671: /* Guam */
1281	case 680: /* Palau */
1282	case 684: /* American Samoa */
1283	case 691: /* Micronesia */
1284	case 692: /* Marshall Islands */
1285	msg_lang = "en_US";
1286	break;
1287	case 4: /* Canada (English) */
1288	case 27: /* South Africa */
1289	case 44: /* United Kingdom */
1290	case 61: /* International English / Australia */
1291	case 64: /* New Zealand */
1292	case 99: /* Asia (English) */
1293	case 220: /* Gambia */
1294	case 231: /* Liberia */
1295	case 232: /* Sierra Leone */
1296	case 233: /* Ghana */
1297	case 254: /* Kenya */
1298	case 256: /* Uganda */
1299	case 260: /* Zambia */
1300	case 263: /* Zimbabwe */
1301	case 264: /* Namibia */
1302	case 267: /* Botswana */
1303	case 268: /* Swaziland */
1304	case 290: /* St. Helena */
1305	case 297: /* Aruba */
1306	case 350: /* Gibraltar */
1307	case 353: /* Ireland */
1308	case 356: /* Malta */
1309	case 500: /* Falkland Islands */
1310	case 501: /* Belize */
1311	case 592: /* Guyana */
1312	case 672: /* Norfolk Island (Australia) / Christmas Island/Cocos Islands / Antartica */
1313	case 673: /* Brunei Darussalam */
1314	case 674: /* Nauru */
1315	case 675: /* Papua New Guinea */
1316	case 676: /* Tonga Islands */
1317	case 677: /* Solomon Islands */
1318	case 679: /* Fiji */
1319	case 682: /* Cook Islands */
1320	case 683: /* Niue */
1321	case 685: /* Western Samoa */
1322	case 686: /* Kiribati */
1323	/* I believe only some of these are English speaking... */
1324	case 809: /* Antigua and Barbuda / Anguilla / Bahamas / Barbados / Bermuda
1325	British Virgin Islands / Cayman Islands / Dominica
1326	Dominican Republic / Grenada / Jamaica / Montserra
1327	St. Kitts and Nevis / St. Lucia / St. Vincent and Grenadines
1328	Trinidad and Tobago / Turks and Caicos */
1329	msg_lang = "en";
1330	break;
1331	case 2: /* Canadian-French */
1332	case 32: /* Belgium / / maybe */
1333	case 33: /* France */
1334	case 213: /* Algeria */
1335	case 216: /* Tunisia */
1336	case 221: /* Senegal */
1337	case 223: /* Mali */
1338	case 225: /* Ivory Coast */
1339	case 226: /* Burkina Faso */
1340	case 227: /* Niger */
1341	case 228: /* Togo */
1342	case 229: /* Benin */
1343	case 230: /* Mauritius */
1344	case 235: /* Chad */
1345	case 236: /* Central African Republic */
1346	case 237: /* Cameroon */
1347	case 241: /* Gabon */
1348	case 242: /* Congo */
1349	case 250: /* Rwhanda */
1350	case 253: /* Djibouti */
1351	case 257: /* Burundi */
1352	case 261: /* Madagascar */
1353	case 262: /* Reunion Island */
1354	case 269: /* Comoros */
1355	case 270: /* Mayotte */
1356	case 352: /* Luxembourg (or de or ...) */
1357	case 508: /* St. Pierre and Miquelon */
1358	case 509: /* Haiti */
1359	case 590: /* Guadeloupe */
1360	case 594: /* French Guiana */
1361	case 596: /* Martinique / French Antilles */
1362	case 678: /* Vanuatu */
1363	case 681: /* Wallis & Futuna */
1364	case 687: /* New Caledonia */
1365	case 689: /* French Polynesia */
1366	case 961: /* Lebanon */
1367	msg_lang = "fr";
1368	break;
1369	case 3: /* Latin America */
1370	case 34: /* Spain */
1371	case 51: /* Peru */
1372	case 52: /* Mexico */
1373	case 53: /* Cuba */
1374	case 54: /* Argentina */
1375	case 56: /* Chile */
1376	case 57: /* Columbia */
1377	case 58: /* Venezuela */
1378	case 63: /* Philippines */
1379	case 240: /* Equatorial Guinea */
1380	case 502: /* Guatemala */
1381	case 503: /* El Salvador */
1382	case 504: /* Honduras */
1383	case 505: /* Nicraragua */
1384	case 506: /* Costa Rica */
1385	case 507: /* Panama */
1386	case 591: /* Bolivia */
1387	case 593: /* Ecuador */
1388	case 595: /* Paraguay */
1389	case 598: /* Uruguay */
1390	msg_lang = "es";
1391	break;
1392	case 39: /* Italy / San Marino / Vatican City */
1393	msg_lang = "it";
1394	break;
1395	case 41: /* Switzerland / Liechtenstein / / or fr or ... */
1396	msg_lang = "de_CH";
1397	break;
1398	case 43: /* Austria (DR DOS 5.0) */
1399	msg_lang = "de";
1400	break;
1401	case 49: /* Germany */
1402	msg_lang = "de_DE";
1403	break;
1404	case 55: /* Brazil (not supported by DR DOS 5.0) */
1405	msg_lang = "pt_BR";
1406	break;
1407	case 238: /* Cape Verde Islands */
1408	case 244: /* Angola */
1409	case 245: /* Guinea-Bissau */
1410	case 259: /* Mozambique */
1411	case 351: /* Portugal */
1412	msg_lang = "pt";
1413	break;
1414	case 42: /* Czechoslovakia / Tjekia / Slovakia (not supported by DR DOS 5.0) */
1415	case 421: /* Czech Republic / Tjekia (PC DOS 7+) */
1416	case 422: /* Slovakia (reported as 421 due to a bug in COUNTRY.SYS) */
1417	msg_lang = "sk";
1418	break;
1419	case 65: /* Singapore */
1420	case 86: /* China (MS-DOS 5.0+) */
1421	case 88: /* Taiwan (MS-DOS 5.0+) */
1422	case 852: /* Hong Kong */
1423	case 853: /* Macao */
1424	case 886: /* Taiwan (MS-DOS 6.22+) */
1425	msg_lang = "zh";
1426	break;
1427	#if 0
1428	case 7: /* Russia */
1429	case 20: /* Egypt */
1430	case 30: /* Greece */
1431	case 31: /* Netherlands */
1432	case 35: /* Bulgaria??? */
1433	case 36: /* Hungary (not supported by DR DOS 5.0) */
1434	case 38: /* Yugoslavia (not supported by DR DOS 5.0) -- obsolete */
1435	#endif
1436	case 40: /* Romania */
1437	msg_lang = "ro";
1438	break;
1439	#if 0
1440	case 45: /* Denmark */
1441	case 46: /* Sweden */
1442	case 47: /* Norway */
1443	case 48: /* Poland (not supported by DR DOS 5.0) */
1444	case 60: /* Malaysia */
1445	case 62: /* Indonesia / East Timor */
1446	case 66: /* Thailand (or Taiwan??? ) */
1447	case 81: /* Japan (DR DOS 5.0, MS-DOS 5.0+) */
1448	case 82: /* South Korea (DR DOS 5.0) */
1449	case 84: /* Vietnam */
1450	case 90: /* Turkey (MS-DOS 5.0+) */
1451	case 91: /* India */
1452	case 92: /* Pakistan */
1453	case 93: /* Afghanistan */
1454	case 94: /* Sri Lanka */
1455	case 98: /* Iran */
1456	case 102: /* ??? (Hebrew MS-DOS 5.0) */
1457	case 112: /* Belarus */
1458	case 200: /* Thailand (PC DOS 6.1+) (reported as 01due to a bug in PC DOS COUNTRY.SYS) */
1459	case 212: /* Morocco */
1460	case 218: /* Libya */
1461	case 222: /* Maruitania */
1462	case 224: /* African Guinea */
1463	case 234: /* Nigeria */
1464	case 239: /* Sao Tome and Principe */
1465	case 243: /* Zaire */
1466	case 246: /* Diego Garcia */
1467	case 247: /* Ascension Isle */
1468	case 248: /* Seychelles */
1469	case 249: /* Sudan */
1470	case 251: /* Ethiopia */
1471	case 252: /* Somalia */
1472	case 255: /* Tanzania */
1473	case 265: /* Malawi */
1474	case 266: /* Lesotho */
1475	case 298: /* Faroe Islands */
1476	case 299: /* Greenland */
1477	case 354: /* Iceland */
1478	case 355: /* Albania */
1479	case 357: /* Cyprus */
1480	case 358: /* Finland */
1481	case 359: /* Bulgaria */
1482	case 370: /* Lithuania (reported as 372 due to a bug in MS-DOS COUNTRY.SYS) */
1483	case 371: /* Latvia (reported as 372 due to a bug in MS-DOS COUNTRY.SYS) */
1484	case 372: /* Estonia */
1485	case 373: /* Moldova / / FIXME: similar to Romanian? */
1486	case 375: /* ??? (MS-DOS 7.10 / Windows98) */
1487	case 380: /* Ukraine */
1488	case 381: /* Serbia / Montenegro */
1489	case 384: /* Croatia */
1490	case 385: /* Croatia (PC DOS 7+) */
1491	case 386: /* Slovenia */
1492	case 387: /* Bosnia-Herzegovina (Latin) */
1493	case 388: /* Bosnia-Herzegovina (Cyrillic) (PC DOS 7+) (reported as 381 due to a bug in PC DOS COUNTRY.SYS) */
1494	case 389: /* FYR Macedonia */
1495	case 597: /* Suriname (nl) */
1496	case 599: /* Netherland Antilles (nl) */
1497	case 666: /* Russia??? (PTS-DOS 6.51 KEYB) */
1498	case 667: /* Poland??? (PTS-DOS 6.51 KEYB) */
1499	case 668: /* Poland??? (Slavic??? ) (PTS-DOS 6.51 KEYB) */
1500	case 688: /* Tuvalu */
1501	case 690: /* Tokealu */
1502	case 711: /* ??? (currency = EA$, code pages 437,737,850,852,855,857) */
1503	case 785: /* Arabic (Middle East/Saudi Arabia/etc.) */
1504	case 804: /* Ukraine */
1505	case 850: /* North Korea */
1506	case 855: /* Cambodia */
1507	case 856: /* Laos */
1508	case 880: /* Bangladesh */
1509	case 960: /* Maldives */
1510	case 962: /* Jordan */
1511	case 963: /* Syria / Syrian Arab Republic */
1512	case 964: /* Iraq */
1513	case 965: /* Kuwait */
1514	case 966: /* Saudi Arabia */
1515	case 967: /* Yemen */
1516	case 968: /* Oman */
1517	case 969: /* Yemen??? (Arabic MS-DOS 5.0) */
1518	case 971: /* United Arab Emirates */
1519	case 972: /* Israel (Hebrew) (DR DOS 5.0,MS-DOS 5.0+) */
1520	case 973: /* Bahrain */
1521	case 974: /* Qatar */
1522	case 975: /* Bhutan */
1523	case 976: /* Mongolia */
1524	case 977: /* Nepal */
1525	case 995: /* Myanmar (Burma) */
1526	#endif
1527	}
1528	}
1529	}
1530	#endif
1531	}
1532	}
1533	#ifdef DEBUG
1534	fprintf(stderr, "msg_lang = %p (= \"%s\")\n", msg_lang, msg_lang?msg_lang:"(null)");
1535	#endif
1536
1537	/* On Mandrake LANG defaults to C */
1538	if (strcmp(msg_lang, "C") == 0) msg_lang = "en";
1539
1540	msg_lang = osstrdup(msg_lang);
1541
1542	/* Convert en-us to en_US, etc */
1543	p = strchr(msg_lang, '-');
1544	if (p) {
1545	*p++ = '_';
1546	while (*p) {
1547	p = toupper(p);
1548	p++;
1549	}
1550	}
1551
1552	p = strchr(msg_lang, '_');
1553	if (p) {
1554	*p = '\0';
1555	msg_lang2 = osstrdup(msg_lang);
1556	*p = '_';
1557	}
1558
1559	#ifdef LC_MESSAGES
1560	/* try to setlocale() appropriately too */
1561	if (!setlocale(LC_MESSAGES, msg_lang)) {
1562	if (msg_lang2) setlocale(LC_MESSAGES, msg_lang2);
1563	}
1564	#endif
1565
1566	select_charset(default_charset());
1567	}
1568
1569	/* Message may be overwritten by next call
1570	* (but not in current implementation) */
1571	const char *
1572	msg(int en)
1573	{
1574	/* NB can't use SVX_ASSERT here! */
1575	static char badbuf[256];
1576	if (en >= 1000 && en < 1000 + N_DONTEXTRACTMSGS)
1577	return dontextract[en - 1000];
1578	if (!msg_array) {
1579	if (en != 1) {
1580	sprintf(badbuf, "Message %d requested before msg_array initialised\n",
1581	en);
1582	return badbuf;
1583	}
1584	/* this should be the only other message which can be requested before
1585	* the message file is opened and read... */
1586	if (!dontextract) return "Out of memory (couldn't find %lu bytes).";
1587	return dontextract[(/Out of memory (couldn't find %lu bytes)./1004)
1588	- 1000];
1589	}
1590
1591	if (en < 0 \|\| en >= num_msgs) {
1592	sprintf(badbuf, "Message %d out of range\n", en);
1593	return badbuf;
1594	}
1595
1596	if (en == 0) {
1597	const char *p = msg_array[0];
1598	if (!*p) p = "(C)";
1599	return p;
1600	}
1601
1602	return msg_array[en];
1603	}
1604
1605	/* returns persistent copy of message */
1606	const char *
1607	msgPerm(int en)
1608	{
1609	return msg(en);
1610	}
1611
1612	void
1613	v_report(int severity, const char *fnm, int line, int en, va_list ap)
1614	{
1615	#ifdef AVEN
1616	aven_v_report(severity, fnm, line, en, ap);
1617	#else
1618	if (fnm) {
1619	fputs(fnm, STDERR);
1620	if (line) fprintf(STDERR, ":%d", line);
1621	} else {
1622	fputs(appname_copy, STDERR);
1623	}
1624	fputs(": ", STDERR);
1625
1626	if (severity == 0) {
1627	fputs(msg(/warning/4), STDERR);
1628	fputs(": ", STDERR);
1629	}
1630
1631	vfprintf(STDERR, msg(en), ap);
1632	fputnl(STDERR);
1633	#endif
1634
1635	switch (severity) {
1636	case 0:
1637	msg_warnings++;
1638	break;
1639	case 1:
1640	msg_errors++;
1641	if (msg_errors == 50)
1642	fatalerror_in_file(fnm, 0, /Too many errors - giving up/19);
1643	break;
1644	case 2:
1645	exit(EXIT_FAILURE);
1646	}
1647	}
1648
1649	void
1650	warning(int en, ...)
1651	{
1652	va_list ap;
1653	va_start(ap, en);
1654	v_report(0, NULL, 0, en, ap);
1655	va_end(ap);
1656	}
1657
1658	void
1659	error(int en, ...)
1660	{
1661	va_list ap;
1662	va_start(ap, en);
1663	v_report(1, NULL, 0, en, ap);
1664	va_end(ap);
1665	}
1666
1667	void
1668	fatalerror(int en, ...)
1669	{
1670	va_list ap;
1671	va_start(ap, en);
1672	v_report(2, NULL, 0, en, ap);
1673	va_end(ap);
1674	}
1675
1676	void
1677	warning_in_file(const char *fnm, int line, int en, ...)
1678	{
1679	va_list ap;
1680	va_start(ap, en);
1681	v_report(0, fnm, line, en, ap);
1682	va_end(ap);
1683	}
1684
1685	void
1686	error_in_file(const char *fnm, int line, int en, ...)
1687	{
1688	va_list ap;
1689	va_start(ap, en);
1690	v_report(1, fnm, line, en, ap);
1691	va_end(ap);
1692	}
1693
1694	void
1695	fatalerror_in_file(const char *fnm, int line, int en, ...)
1696	{
1697	va_list ap;
1698	va_start(ap, en);
1699	v_report(2, fnm, line, en, ap);
1700	va_end(ap);
1701	}
1702
1703	/* Code to support switching character set at runtime (e.g. for a printer
1704	* driver to support different character sets on screen and on the printer)
1705	*/
1706	typedef struct charset_li {
1707	struct charset_li *next;
1708	int code;
1709	char **msg_array;
1710	} charset_li;
1711
1712	static charset_li *charset_head = NULL;
1713
1714	static int charset = CHARSET_BAD;
1715
1716	int
1717	select_charset(int charset_code)
1718	{
1719	int old_charset = charset;
1720	charset_li *p;
1721
1722	#ifdef DEBUG
1723	fprintf(stderr, "select_charset(%d), old charset = %d\n", charset_code,
1724	charset);
1725	#endif
1726
1727	charset = charset_code;
1728
1729	/* check if we've already parsed messages for new charset */
1730	for (p = charset_head; p; p = p->next) {
1731	#ifdef DEBUG
1732	printf("%p: code %d msg_array %p\n", p, p->code, p->msg_array);
1733	#endif
1734	if (p->code == charset) {
1735	msg_array = p->msg_array;
1736	return old_charset;
1737	}
1738	}
1739
1740	/* nope, got to reparse message file */
1741	parse_msg_file(charset_code);
1742
1743	/* add to list */
1744	p = osnew(charset_li);
1745	p->code = charset;
1746	p->msg_array = msg_array;
1747	p->next = charset_head;
1748	charset_head = p;
1749
1750	return old_charset;
1751	}

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source: git/src/message.c @ 412c445

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