| 1 | /* Character set conversion support for GDB. |
| 2 | |
| 3 | Copyright (C) 2001, 2003, 2007 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GDB. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 20 | Boston, MA 02110-1301, USA. */ |
| 21 | |
| 22 | #include "defs.h" |
| 23 | #include "charset.h" |
| 24 | #include "gdbcmd.h" |
| 25 | #include "gdb_assert.h" |
| 26 | |
| 27 | #include <stddef.h> |
| 28 | #include "gdb_string.h" |
| 29 | #include <ctype.h> |
| 30 | |
| 31 | #ifdef HAVE_ICONV |
| 32 | #include <iconv.h> |
| 33 | #endif |
| 34 | |
| 35 | \f |
| 36 | /* How GDB's character set support works |
| 37 | |
| 38 | GDB has two global settings: |
| 39 | |
| 40 | - The `current host character set' is the character set GDB should |
| 41 | use in talking to the user, and which (hopefully) the user's |
| 42 | terminal knows how to display properly. |
| 43 | |
| 44 | - The `current target character set' is the character set the |
| 45 | program being debugged uses. |
| 46 | |
| 47 | There are commands to set each of these, and mechanisms for |
| 48 | choosing reasonable default values. GDB has a global list of |
| 49 | character sets that it can use as its host or target character |
| 50 | sets. |
| 51 | |
| 52 | The header file `charset.h' declares various functions that |
| 53 | different pieces of GDB need to perform tasks like: |
| 54 | |
| 55 | - printing target strings and characters to the user's terminal |
| 56 | (mostly target->host conversions), |
| 57 | |
| 58 | - building target-appropriate representations of strings and |
| 59 | characters the user enters in expressions (mostly host->target |
| 60 | conversions), |
| 61 | |
| 62 | and so on. |
| 63 | |
| 64 | Now, many of these operations are specific to a particular |
| 65 | host/target character set pair. If GDB supports N character sets, |
| 66 | there are N^2 possible pairs. This means that, the larger GDB's |
| 67 | repertoire of character sets gets, the more expensive it gets to add |
| 68 | new character sets. |
| 69 | |
| 70 | To make sure that GDB can do the right thing for every possible |
| 71 | pairing of host and target character set, while still allowing |
| 72 | GDB's repertoire to scale, we use a two-tiered approach: |
| 73 | |
| 74 | - We maintain a global table of "translations" --- groups of |
| 75 | functions specific to a particular pair of character sets. |
| 76 | |
| 77 | - However, a translation can be incomplete: some functions can be |
| 78 | omitted. Where there is not a translation to specify exactly |
| 79 | what function to use, we provide reasonable defaults. The |
| 80 | default behaviors try to use the "iconv" library functions, which |
| 81 | support a wide range of character sets. However, even if iconv |
| 82 | is not available, there are fallbacks to support trivial |
| 83 | translations: when the host and target character sets are the |
| 84 | same. */ |
| 85 | |
| 86 | \f |
| 87 | /* The character set and translation structures. */ |
| 88 | |
| 89 | |
| 90 | /* A character set GDB knows about. GDB only supports character sets |
| 91 | with stateless encodings, in which every character is one byte |
| 92 | long. */ |
| 93 | struct charset { |
| 94 | |
| 95 | /* A singly-linked list of all known charsets. */ |
| 96 | struct charset *next; |
| 97 | |
| 98 | /* The name of the character set. Comparisons on character set |
| 99 | names are case-sensitive. */ |
| 100 | const char *name; |
| 101 | |
| 102 | /* Non-zero iff this character set can be used as a host character |
| 103 | set. At present, GDB basically assumes that the host character |
| 104 | set is a superset of ASCII. */ |
| 105 | int valid_host_charset; |
| 106 | |
| 107 | /* Pointers to charset-specific functions that depend only on a |
| 108 | single character set, and data pointers to pass to them. */ |
| 109 | int (*host_char_print_literally) (void *baton, |
| 110 | int host_char); |
| 111 | void *host_char_print_literally_baton; |
| 112 | |
| 113 | int (*target_char_to_control_char) (void *baton, |
| 114 | int target_char, |
| 115 | int *target_ctrl_char); |
| 116 | void *target_char_to_control_char_baton; |
| 117 | }; |
| 118 | |
| 119 | |
| 120 | /* A translation from one character set to another. */ |
| 121 | struct translation { |
| 122 | |
| 123 | /* A singly-linked list of all known translations. */ |
| 124 | struct translation *next; |
| 125 | |
| 126 | /* This structure describes functions going from the FROM character |
| 127 | set to the TO character set. Comparisons on character set names |
| 128 | are case-sensitive. */ |
| 129 | const char *from, *to; |
| 130 | |
| 131 | /* Pointers to translation-specific functions, and data pointers to |
| 132 | pass to them. These pointers can be zero, indicating that GDB |
| 133 | should fall back on the default behavior. We hope the default |
| 134 | behavior will be correct for many from/to pairs, reducing the |
| 135 | number of translations that need to be registered explicitly. */ |
| 136 | |
| 137 | /* TARGET_CHAR is in the `from' charset. |
| 138 | Returns a string in the `to' charset. */ |
| 139 | const char *(*c_target_char_has_backslash_escape) (void *baton, |
| 140 | int target_char); |
| 141 | void *c_target_char_has_backslash_escape_baton; |
| 142 | |
| 143 | /* HOST_CHAR is in the `from' charset. |
| 144 | TARGET_CHAR points to a char in the `to' charset. */ |
| 145 | int (*c_parse_backslash) (void *baton, int host_char, int *target_char); |
| 146 | void *c_parse_backslash_baton; |
| 147 | |
| 148 | /* This is used for the host_char_to_target and target_char_to_host |
| 149 | functions. */ |
| 150 | int (*convert_char) (void *baton, int from, int *to); |
| 151 | void *convert_char_baton; |
| 152 | }; |
| 153 | |
| 154 | |
| 155 | \f |
| 156 | /* The global lists of character sets and translations. */ |
| 157 | |
| 158 | |
| 159 | #ifndef GDB_DEFAULT_HOST_CHARSET |
| 160 | #define GDB_DEFAULT_HOST_CHARSET "ISO-8859-1" |
| 161 | #endif |
| 162 | |
| 163 | #ifndef GDB_DEFAULT_TARGET_CHARSET |
| 164 | #define GDB_DEFAULT_TARGET_CHARSET "ISO-8859-1" |
| 165 | #endif |
| 166 | |
| 167 | static const char *host_charset_name = GDB_DEFAULT_HOST_CHARSET; |
| 168 | static void |
| 169 | show_host_charset_name (struct ui_file *file, int from_tty, |
| 170 | struct cmd_list_element *c, |
| 171 | const char *value) |
| 172 | { |
| 173 | fprintf_filtered (file, _("The host character set is \"%s\".\n"), value); |
| 174 | } |
| 175 | |
| 176 | static const char *target_charset_name = GDB_DEFAULT_TARGET_CHARSET; |
| 177 | static void |
| 178 | show_target_charset_name (struct ui_file *file, int from_tty, |
| 179 | struct cmd_list_element *c, const char *value) |
| 180 | { |
| 181 | fprintf_filtered (file, _("The target character set is \"%s\".\n"), |
| 182 | value); |
| 183 | } |
| 184 | |
| 185 | |
| 186 | static const char *host_charset_enum[] = |
| 187 | { |
| 188 | "ASCII", |
| 189 | "ISO-8859-1", |
| 190 | 0 |
| 191 | }; |
| 192 | |
| 193 | static const char *target_charset_enum[] = |
| 194 | { |
| 195 | "ASCII", |
| 196 | "ISO-8859-1", |
| 197 | "EBCDIC-US", |
| 198 | "IBM1047", |
| 199 | 0 |
| 200 | }; |
| 201 | |
| 202 | /* The global list of all the charsets GDB knows about. */ |
| 203 | static struct charset *all_charsets; |
| 204 | |
| 205 | |
| 206 | static void |
| 207 | register_charset (struct charset *cs) |
| 208 | { |
| 209 | struct charset **ptr; |
| 210 | |
| 211 | /* Put the new charset on the end, so that the list ends up in the |
| 212 | same order as the registrations in the _initialize function. */ |
| 213 | for (ptr = &all_charsets; *ptr; ptr = &(*ptr)->next) |
| 214 | ; |
| 215 | |
| 216 | cs->next = 0; |
| 217 | *ptr = cs; |
| 218 | } |
| 219 | |
| 220 | |
| 221 | static struct charset * |
| 222 | lookup_charset (const char *name) |
| 223 | { |
| 224 | struct charset *cs; |
| 225 | |
| 226 | for (cs = all_charsets; cs; cs = cs->next) |
| 227 | if (! strcmp (name, cs->name)) |
| 228 | return cs; |
| 229 | |
| 230 | return NULL; |
| 231 | } |
| 232 | |
| 233 | |
| 234 | /* The global list of translations. */ |
| 235 | static struct translation *all_translations; |
| 236 | |
| 237 | |
| 238 | static void |
| 239 | register_translation (struct translation *t) |
| 240 | { |
| 241 | t->next = all_translations; |
| 242 | all_translations = t; |
| 243 | } |
| 244 | |
| 245 | |
| 246 | static struct translation * |
| 247 | lookup_translation (const char *from, const char *to) |
| 248 | { |
| 249 | struct translation *t; |
| 250 | |
| 251 | for (t = all_translations; t; t = t->next) |
| 252 | if (! strcmp (from, t->from) |
| 253 | && ! strcmp (to, t->to)) |
| 254 | return t; |
| 255 | |
| 256 | return 0; |
| 257 | } |
| 258 | |
| 259 | |
| 260 | \f |
| 261 | /* Constructing charsets. */ |
| 262 | |
| 263 | /* Allocate, initialize and return a straightforward charset. |
| 264 | Use this function, rather than creating the structures yourself, |
| 265 | so that we can add new fields to the structure in the future without |
| 266 | having to tweak all the old charset descriptions. */ |
| 267 | static struct charset * |
| 268 | simple_charset (const char *name, |
| 269 | int valid_host_charset, |
| 270 | int (*host_char_print_literally) (void *baton, int host_char), |
| 271 | void *host_char_print_literally_baton, |
| 272 | int (*target_char_to_control_char) (void *baton, |
| 273 | int target_char, |
| 274 | int *target_ctrl_char), |
| 275 | void *target_char_to_control_char_baton) |
| 276 | { |
| 277 | struct charset *cs = xmalloc (sizeof (*cs)); |
| 278 | |
| 279 | memset (cs, 0, sizeof (*cs)); |
| 280 | cs->name = name; |
| 281 | cs->valid_host_charset = valid_host_charset; |
| 282 | cs->host_char_print_literally = host_char_print_literally; |
| 283 | cs->host_char_print_literally_baton = host_char_print_literally_baton; |
| 284 | cs->target_char_to_control_char = target_char_to_control_char; |
| 285 | cs->target_char_to_control_char_baton = target_char_to_control_char_baton; |
| 286 | |
| 287 | return cs; |
| 288 | } |
| 289 | |
| 290 | |
| 291 | \f |
| 292 | /* ASCII functions. */ |
| 293 | |
| 294 | static int |
| 295 | ascii_print_literally (void *baton, int c) |
| 296 | { |
| 297 | c &= 0xff; |
| 298 | |
| 299 | return (0x20 <= c && c <= 0x7e); |
| 300 | } |
| 301 | |
| 302 | |
| 303 | static int |
| 304 | ascii_to_control (void *baton, int c, int *ctrl_char) |
| 305 | { |
| 306 | *ctrl_char = (c & 037); |
| 307 | return 1; |
| 308 | } |
| 309 | |
| 310 | \f |
| 311 | /* ISO-8859 family functions. */ |
| 312 | |
| 313 | |
| 314 | static int |
| 315 | iso_8859_print_literally (void *baton, int c) |
| 316 | { |
| 317 | c &= 0xff; |
| 318 | |
| 319 | return ((0x20 <= c && c <= 0x7e) /* ascii printables */ |
| 320 | || (! sevenbit_strings && 0xA0 <= c)); /* iso 8859 printables */ |
| 321 | } |
| 322 | |
| 323 | |
| 324 | static int |
| 325 | iso_8859_to_control (void *baton, int c, int *ctrl_char) |
| 326 | { |
| 327 | *ctrl_char = (c & 0200) | (c & 037); |
| 328 | return 1; |
| 329 | } |
| 330 | |
| 331 | |
| 332 | /* Construct an ISO-8859-like character set. */ |
| 333 | static struct charset * |
| 334 | iso_8859_family_charset (const char *name) |
| 335 | { |
| 336 | return simple_charset (name, 1, |
| 337 | iso_8859_print_literally, 0, |
| 338 | iso_8859_to_control, 0); |
| 339 | } |
| 340 | |
| 341 | |
| 342 | \f |
| 343 | /* EBCDIC family functions. */ |
| 344 | |
| 345 | |
| 346 | static int |
| 347 | ebcdic_print_literally (void *baton, int c) |
| 348 | { |
| 349 | c &= 0xff; |
| 350 | |
| 351 | return (64 <= c && c <= 254); |
| 352 | } |
| 353 | |
| 354 | |
| 355 | static int |
| 356 | ebcdic_to_control (void *baton, int c, int *ctrl_char) |
| 357 | { |
| 358 | /* There are no control character equivalents in EBCDIC. Use |
| 359 | numeric escapes. */ |
| 360 | return 0; |
| 361 | } |
| 362 | |
| 363 | |
| 364 | /* Construct an EBCDIC-like character set. */ |
| 365 | static struct charset * |
| 366 | ebcdic_family_charset (const char *name) |
| 367 | { |
| 368 | return simple_charset (name, 0, |
| 369 | ebcdic_print_literally, 0, |
| 370 | ebcdic_to_control, 0); |
| 371 | } |
| 372 | |
| 373 | |
| 374 | |
| 375 | |
| 376 | \f |
| 377 | /* Fallback functions using iconv. */ |
| 378 | |
| 379 | #if defined(HAVE_ICONV) |
| 380 | |
| 381 | struct cached_iconv { |
| 382 | struct charset *from, *to; |
| 383 | iconv_t i; |
| 384 | }; |
| 385 | |
| 386 | |
| 387 | /* Make sure the iconv cache *CI contains an iconv descriptor |
| 388 | translating from FROM to TO. If it already does, fine; otherwise, |
| 389 | close any existing descriptor, and open up a new one. On success, |
| 390 | return zero; on failure, return -1 and set errno. */ |
| 391 | static int |
| 392 | check_iconv_cache (struct cached_iconv *ci, |
| 393 | struct charset *from, |
| 394 | struct charset *to) |
| 395 | { |
| 396 | iconv_t i; |
| 397 | |
| 398 | /* Does the cached iconv descriptor match the conversion we're trying |
| 399 | to do now? */ |
| 400 | if (ci->from == from |
| 401 | && ci->to == to |
| 402 | && ci->i != (iconv_t) 0) |
| 403 | return 0; |
| 404 | |
| 405 | /* It doesn't. If we actually had any iconv descriptor open at |
| 406 | all, close it now. */ |
| 407 | if (ci->i != (iconv_t) 0) |
| 408 | { |
| 409 | i = ci->i; |
| 410 | ci->i = (iconv_t) 0; |
| 411 | |
| 412 | if (iconv_close (i) == -1) |
| 413 | error (_("Error closing `iconv' descriptor for " |
| 414 | "`%s'-to-`%s' character conversion: %s"), |
| 415 | ci->from->name, ci->to->name, safe_strerror (errno)); |
| 416 | } |
| 417 | |
| 418 | /* Open a new iconv descriptor for the required conversion. */ |
| 419 | i = iconv_open (to->name, from->name); |
| 420 | if (i == (iconv_t) -1) |
| 421 | return -1; |
| 422 | |
| 423 | ci->i = i; |
| 424 | ci->from = from; |
| 425 | ci->to = to; |
| 426 | |
| 427 | return 0; |
| 428 | } |
| 429 | |
| 430 | |
| 431 | /* Convert FROM_CHAR using the cached iconv conversion *CI. Return |
| 432 | non-zero if the conversion was successful, zero otherwise. */ |
| 433 | static int |
| 434 | cached_iconv_convert (struct cached_iconv *ci, int from_char, int *to_char) |
| 435 | { |
| 436 | char from; |
| 437 | ICONV_CONST char *from_ptr = &from; |
| 438 | char to, *to_ptr = &to; |
| 439 | size_t from_left = sizeof (from), to_left = sizeof (to); |
| 440 | |
| 441 | gdb_assert (ci->i != (iconv_t) 0); |
| 442 | |
| 443 | from = from_char; |
| 444 | if (iconv (ci->i, &from_ptr, &from_left, &to_ptr, &to_left) |
| 445 | == (size_t) -1) |
| 446 | { |
| 447 | /* These all suggest that the input or output character sets |
| 448 | have multi-byte encodings of some characters, which means |
| 449 | it's unsuitable for use as a GDB character set. We should |
| 450 | never have selected it. */ |
| 451 | gdb_assert (errno != E2BIG && errno != EINVAL); |
| 452 | |
| 453 | /* This suggests a bug in the code managing *CI. */ |
| 454 | gdb_assert (errno != EBADF); |
| 455 | |
| 456 | /* This seems to mean that there is no equivalent character in |
| 457 | the `to' character set. */ |
| 458 | if (errno == EILSEQ) |
| 459 | return 0; |
| 460 | |
| 461 | /* Anything else is mysterious. */ |
| 462 | internal_error (__FILE__, __LINE__, |
| 463 | _("Error converting character `%d' from `%s' to `%s' " |
| 464 | "character set: %s"), |
| 465 | from_char, ci->from->name, ci->to->name, |
| 466 | safe_strerror (errno)); |
| 467 | } |
| 468 | |
| 469 | /* If the pointers weren't advanced across the input, that also |
| 470 | suggests something was wrong. */ |
| 471 | gdb_assert (from_left == 0 && to_left == 0); |
| 472 | |
| 473 | *to_char = (unsigned char) to; |
| 474 | return 1; |
| 475 | } |
| 476 | |
| 477 | |
| 478 | static void |
| 479 | register_iconv_charsets (void) |
| 480 | { |
| 481 | /* Here we should check whether various character sets were |
| 482 | recognized by the local iconv implementation. |
| 483 | |
| 484 | The first implementation registered a bunch of character sets |
| 485 | recognized by iconv, but then we discovered that iconv on Solaris |
| 486 | and iconv on GNU/Linux had no character sets in common. So we |
| 487 | replaced them with the hard-coded tables that appear later in the |
| 488 | file. */ |
| 489 | } |
| 490 | |
| 491 | #endif /* defined (HAVE_ICONV) */ |
| 492 | |
| 493 | \f |
| 494 | /* Fallback routines for systems without iconv. */ |
| 495 | |
| 496 | #if ! defined (HAVE_ICONV) |
| 497 | struct cached_iconv { char nothing; }; |
| 498 | |
| 499 | static int |
| 500 | check_iconv_cache (struct cached_iconv *ci, |
| 501 | struct charset *from, |
| 502 | struct charset *to) |
| 503 | { |
| 504 | errno = EINVAL; |
| 505 | return -1; |
| 506 | } |
| 507 | |
| 508 | static int |
| 509 | cached_iconv_convert (struct cached_iconv *ci, int from_char, int *to_char) |
| 510 | { |
| 511 | /* This function should never be called. */ |
| 512 | gdb_assert (0); |
| 513 | } |
| 514 | |
| 515 | static void |
| 516 | register_iconv_charsets (void) |
| 517 | { |
| 518 | } |
| 519 | |
| 520 | #endif /* ! defined(HAVE_ICONV) */ |
| 521 | |
| 522 | \f |
| 523 | /* Default trivial conversion functions. */ |
| 524 | |
| 525 | static int |
| 526 | identity_either_char_to_other (void *baton, int either_char, int *other_char) |
| 527 | { |
| 528 | *other_char = either_char; |
| 529 | return 1; |
| 530 | } |
| 531 | |
| 532 | |
| 533 | \f |
| 534 | /* Default non-trivial conversion functions. */ |
| 535 | |
| 536 | |
| 537 | static char backslashable[] = "abfnrtv"; |
| 538 | static char *backslashed[] = {"a", "b", "f", "n", "r", "t", "v", "0"}; |
| 539 | static char represented[] = "\a\b\f\n\r\t\v"; |
| 540 | |
| 541 | |
| 542 | /* Translate TARGET_CHAR into the host character set, and see if it |
| 543 | matches any of our standard escape sequences. */ |
| 544 | static const char * |
| 545 | default_c_target_char_has_backslash_escape (void *baton, int target_char) |
| 546 | { |
| 547 | int host_char; |
| 548 | const char *ix; |
| 549 | |
| 550 | /* If target_char has no equivalent in the host character set, |
| 551 | assume it doesn't have a backslashed form. */ |
| 552 | if (! target_char_to_host (target_char, &host_char)) |
| 553 | return NULL; |
| 554 | |
| 555 | ix = strchr (represented, host_char); |
| 556 | if (ix) |
| 557 | return backslashed[ix - represented]; |
| 558 | else |
| 559 | return NULL; |
| 560 | } |
| 561 | |
| 562 | |
| 563 | /* Translate the backslash the way we would in the host character set, |
| 564 | and then try to translate that into the target character set. */ |
| 565 | static int |
| 566 | default_c_parse_backslash (void *baton, int host_char, int *target_char) |
| 567 | { |
| 568 | const char *ix; |
| 569 | |
| 570 | ix = strchr (backslashable, host_char); |
| 571 | |
| 572 | if (! ix) |
| 573 | return 0; |
| 574 | else |
| 575 | return host_char_to_target (represented[ix - backslashable], |
| 576 | target_char); |
| 577 | } |
| 578 | |
| 579 | |
| 580 | /* Convert using a cached iconv descriptor. */ |
| 581 | static int |
| 582 | iconv_convert (void *baton, int from_char, int *to_char) |
| 583 | { |
| 584 | struct cached_iconv *ci = baton; |
| 585 | return cached_iconv_convert (ci, from_char, to_char); |
| 586 | } |
| 587 | |
| 588 | |
| 589 | \f |
| 590 | /* Conversion tables. */ |
| 591 | |
| 592 | |
| 593 | /* I'd much rather fall back on iconv whenever possible. But the |
| 594 | character set names you use with iconv aren't standardized at all, |
| 595 | a lot of platforms have really meager character set coverage, etc. |
| 596 | I wanted to have at least something we could use to exercise the |
| 597 | test suite on all platforms. |
| 598 | |
| 599 | In the long run, we should have a configure-time process explore |
| 600 | somehow which character sets the host platform supports, and some |
| 601 | arrangement that allows GDB users to use platform-indepedent names |
| 602 | for character sets. */ |
| 603 | |
| 604 | |
| 605 | /* We generated these tables using iconv on a GNU/Linux machine. */ |
| 606 | |
| 607 | |
| 608 | static int ascii_to_iso_8859_1_table[] = { |
| 609 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, /* 16 */ |
| 610 | 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, /* 32 */ |
| 611 | 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, /* 48 */ |
| 612 | 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, /* 64 */ |
| 613 | 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, /* 80 */ |
| 614 | 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, /* 96 */ |
| 615 | 96, 97, 98, 99,100,101,102,103,104,105,106,107,108,109,110,111, /* 112 */ |
| 616 | 112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127, /* 128 */ |
| 617 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 144 */ |
| 618 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 160 */ |
| 619 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 176 */ |
| 620 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 192 */ |
| 621 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 208 */ |
| 622 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 224 */ |
| 623 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 240 */ |
| 624 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 /* 256 */ |
| 625 | }; |
| 626 | |
| 627 | |
| 628 | static int ascii_to_ebcdic_us_table[] = { |
| 629 | 0, 1, 2, 3, 55, 45, 46, 47, 22, 5, 37, 11, 12, 13, 14, 15, /* 16 */ |
| 630 | 16, 17, 18, 19, 60, 61, 50, 38, 24, 25, 63, 39, 28, 29, 30, 31, /* 32 */ |
| 631 | 64, 90,127,123, 91,108, 80,125, 77, 93, 92, 78,107, 96, 75, 97, /* 48 */ |
| 632 | 240,241,242,243,244,245,246,247,248,249,122, 94, 76,126,110,111, /* 64 */ |
| 633 | 124,193,194,195,196,197,198,199,200,201,209,210,211,212,213,214, /* 80 */ |
| 634 | 215,216,217,226,227,228,229,230,231,232,233, -1,224, -1, -1,109, /* 96 */ |
| 635 | 121,129,130,131,132,133,134,135,136,137,145,146,147,148,149,150, /* 112 */ |
| 636 | 151,152,153,162,163,164,165,166,167,168,169,192, 79,208,161, 7, /* 128 */ |
| 637 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 144 */ |
| 638 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 160 */ |
| 639 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 176 */ |
| 640 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 192 */ |
| 641 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 208 */ |
| 642 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 224 */ |
| 643 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 240 */ |
| 644 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 /* 256 */ |
| 645 | }; |
| 646 | |
| 647 | |
| 648 | static int ascii_to_ibm1047_table[] = { |
| 649 | 0, 1, 2, 3, 55, 45, 46, 47, 22, 5, 37, 11, 12, 13, 14, 15, /* 16 */ |
| 650 | 16, 17, 18, 19, 60, 61, 50, 38, 24, 25, 63, 39, 28, 29, 30, 31, /* 32 */ |
| 651 | 64, 90,127,123, 91,108, 80,125, 77, 93, 92, 78,107, 96, 75, 97, /* 48 */ |
| 652 | 240,241,242,243,244,245,246,247,248,249,122, 94, 76,126,110,111, /* 64 */ |
| 653 | 124,193,194,195,196,197,198,199,200,201,209,210,211,212,213,214, /* 80 */ |
| 654 | 215,216,217,226,227,228,229,230,231,232,233,173,224,189, 95,109, /* 96 */ |
| 655 | 121,129,130,131,132,133,134,135,136,137,145,146,147,148,149,150, /* 112 */ |
| 656 | 151,152,153,162,163,164,165,166,167,168,169,192, 79,208,161, 7, /* 128 */ |
| 657 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 144 */ |
| 658 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 160 */ |
| 659 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 176 */ |
| 660 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 192 */ |
| 661 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 208 */ |
| 662 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 224 */ |
| 663 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 240 */ |
| 664 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 /* 256 */ |
| 665 | }; |
| 666 | |
| 667 | |
| 668 | static int iso_8859_1_to_ascii_table[] = { |
| 669 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, /* 16 */ |
| 670 | 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, /* 32 */ |
| 671 | 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, /* 48 */ |
| 672 | 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, /* 64 */ |
| 673 | 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, /* 80 */ |
| 674 | 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, /* 96 */ |
| 675 | 96, 97, 98, 99,100,101,102,103,104,105,106,107,108,109,110,111, /* 112 */ |
| 676 | 112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127, /* 128 */ |
| 677 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 144 */ |
| 678 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 160 */ |
| 679 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 176 */ |
| 680 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 192 */ |
| 681 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 208 */ |
| 682 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 224 */ |
| 683 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 240 */ |
| 684 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 /* 256 */ |
| 685 | }; |
| 686 | |
| 687 | |
| 688 | static int iso_8859_1_to_ebcdic_us_table[] = { |
| 689 | 0, 1, 2, 3, 55, 45, 46, 47, 22, 5, 37, 11, 12, 13, 14, 15, /* 16 */ |
| 690 | 16, 17, 18, 19, 60, 61, 50, 38, 24, 25, 63, 39, 28, 29, 30, 31, /* 32 */ |
| 691 | 64, 90,127,123, 91,108, 80,125, 77, 93, 92, 78,107, 96, 75, 97, /* 48 */ |
| 692 | 240,241,242,243,244,245,246,247,248,249,122, 94, 76,126,110,111, /* 64 */ |
| 693 | 124,193,194,195,196,197,198,199,200,201,209,210,211,212,213,214, /* 80 */ |
| 694 | 215,216,217,226,227,228,229,230,231,232,233, -1,224, -1, -1,109, /* 96 */ |
| 695 | 121,129,130,131,132,133,134,135,136,137,145,146,147,148,149,150, /* 112 */ |
| 696 | 151,152,153,162,163,164,165,166,167,168,169,192, 79,208,161, 7, /* 128 */ |
| 697 | 32, 33, 34, 35, 36, 21, 6, 23, 40, 41, 42, 43, 44, 9, 10, 27, /* 144 */ |
| 698 | 48, 49, 26, 51, 52, 53, 54, 8, 56, 57, 58, 59, 4, 20, 62,255, /* 160 */ |
| 699 | -1, -1, 74, -1, -1, -1,106, -1, -1, -1, -1, -1, 95, -1, -1, -1, /* 176 */ |
| 700 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 192 */ |
| 701 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 208 */ |
| 702 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 224 */ |
| 703 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 240 */ |
| 704 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 /* 256 */ |
| 705 | }; |
| 706 | |
| 707 | |
| 708 | static int iso_8859_1_to_ibm1047_table[] = { |
| 709 | 0, 1, 2, 3, 55, 45, 46, 47, 22, 5, 37, 11, 12, 13, 14, 15, /* 16 */ |
| 710 | 16, 17, 18, 19, 60, 61, 50, 38, 24, 25, 63, 39, 28, 29, 30, 31, /* 32 */ |
| 711 | 64, 90,127,123, 91,108, 80,125, 77, 93, 92, 78,107, 96, 75, 97, /* 48 */ |
| 712 | 240,241,242,243,244,245,246,247,248,249,122, 94, 76,126,110,111, /* 64 */ |
| 713 | 124,193,194,195,196,197,198,199,200,201,209,210,211,212,213,214, /* 80 */ |
| 714 | 215,216,217,226,227,228,229,230,231,232,233,173,224,189, 95,109, /* 96 */ |
| 715 | 121,129,130,131,132,133,134,135,136,137,145,146,147,148,149,150, /* 112 */ |
| 716 | 151,152,153,162,163,164,165,166,167,168,169,192, 79,208,161, 7, /* 128 */ |
| 717 | 32, 33, 34, 35, 36, 21, 6, 23, 40, 41, 42, 43, 44, 9, 10, 27, /* 144 */ |
| 718 | 48, 49, 26, 51, 52, 53, 54, 8, 56, 57, 58, 59, 4, 20, 62,255, /* 160 */ |
| 719 | 65,170, 74,177,159,178,106,181,187,180,154,138,176,202,175,188, /* 176 */ |
| 720 | 144,143,234,250,190,160,182,179,157,218,155,139,183,184,185,171, /* 192 */ |
| 721 | 100,101, 98,102, 99,103,158,104,116,113,114,115,120,117,118,119, /* 208 */ |
| 722 | 172,105,237,238,235,239,236,191,128,253,254,251,252,186,174, 89, /* 224 */ |
| 723 | 68, 69, 66, 70, 67, 71,156, 72, 84, 81, 82, 83, 88, 85, 86, 87, /* 240 */ |
| 724 | 140, 73,205,206,203,207,204,225,112,221,222,219,220,141,142,223 /* 256 */ |
| 725 | }; |
| 726 | |
| 727 | |
| 728 | static int ebcdic_us_to_ascii_table[] = { |
| 729 | 0, 1, 2, 3, -1, 9, -1,127, -1, -1, -1, 11, 12, 13, 14, 15, /* 16 */ |
| 730 | 16, 17, 18, 19, -1, -1, 8, -1, 24, 25, -1, -1, 28, 29, 30, 31, /* 32 */ |
| 731 | -1, -1, -1, -1, -1, 10, 23, 27, -1, -1, -1, -1, -1, 5, 6, 7, /* 48 */ |
| 732 | -1, -1, 22, -1, -1, -1, -1, 4, -1, -1, -1, -1, 20, 21, -1, 26, /* 64 */ |
| 733 | 32, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 46, 60, 40, 43,124, /* 80 */ |
| 734 | 38, -1, -1, -1, -1, -1, -1, -1, -1, -1, 33, 36, 42, 41, 59, -1, /* 96 */ |
| 735 | 45, 47, -1, -1, -1, -1, -1, -1, -1, -1, -1, 44, 37, 95, 62, 63, /* 112 */ |
| 736 | -1, -1, -1, -1, -1, -1, -1, -1, -1, 96, 58, 35, 64, 39, 61, 34, /* 128 */ |
| 737 | -1, 97, 98, 99,100,101,102,103,104,105, -1, -1, -1, -1, -1, -1, /* 144 */ |
| 738 | -1,106,107,108,109,110,111,112,113,114, -1, -1, -1, -1, -1, -1, /* 160 */ |
| 739 | -1,126,115,116,117,118,119,120,121,122, -1, -1, -1, -1, -1, -1, /* 176 */ |
| 740 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 192 */ |
| 741 | 123, 65, 66, 67, 68, 69, 70, 71, 72, 73, -1, -1, -1, -1, -1, -1, /* 208 */ |
| 742 | 125, 74, 75, 76, 77, 78, 79, 80, 81, 82, -1, -1, -1, -1, -1, -1, /* 224 */ |
| 743 | 92, -1, 83, 84, 85, 86, 87, 88, 89, 90, -1, -1, -1, -1, -1, -1, /* 240 */ |
| 744 | 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, -1, -1, -1, -1, -1, -1 /* 256 */ |
| 745 | }; |
| 746 | |
| 747 | |
| 748 | static int ebcdic_us_to_iso_8859_1_table[] = { |
| 749 | 0, 1, 2, 3,156, 9,134,127,151,141,142, 11, 12, 13, 14, 15, /* 16 */ |
| 750 | 16, 17, 18, 19,157,133, 8,135, 24, 25,146,143, 28, 29, 30, 31, /* 32 */ |
| 751 | 128,129,130,131,132, 10, 23, 27,136,137,138,139,140, 5, 6, 7, /* 48 */ |
| 752 | 144,145, 22,147,148,149,150, 4,152,153,154,155, 20, 21,158, 26, /* 64 */ |
| 753 | 32, -1, -1, -1, -1, -1, -1, -1, -1, -1,162, 46, 60, 40, 43,124, /* 80 */ |
| 754 | 38, -1, -1, -1, -1, -1, -1, -1, -1, -1, 33, 36, 42, 41, 59,172, /* 96 */ |
| 755 | 45, 47, -1, -1, -1, -1, -1, -1, -1, -1,166, 44, 37, 95, 62, 63, /* 112 */ |
| 756 | -1, -1, -1, -1, -1, -1, -1, -1, -1, 96, 58, 35, 64, 39, 61, 34, /* 128 */ |
| 757 | -1, 97, 98, 99,100,101,102,103,104,105, -1, -1, -1, -1, -1, -1, /* 144 */ |
| 758 | -1,106,107,108,109,110,111,112,113,114, -1, -1, -1, -1, -1, -1, /* 160 */ |
| 759 | -1,126,115,116,117,118,119,120,121,122, -1, -1, -1, -1, -1, -1, /* 176 */ |
| 760 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 192 */ |
| 761 | 123, 65, 66, 67, 68, 69, 70, 71, 72, 73, -1, -1, -1, -1, -1, -1, /* 208 */ |
| 762 | 125, 74, 75, 76, 77, 78, 79, 80, 81, 82, -1, -1, -1, -1, -1, -1, /* 224 */ |
| 763 | 92, -1, 83, 84, 85, 86, 87, 88, 89, 90, -1, -1, -1, -1, -1, -1, /* 240 */ |
| 764 | 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, -1, -1, -1, -1, -1,159 /* 256 */ |
| 765 | }; |
| 766 | |
| 767 | |
| 768 | static int ebcdic_us_to_ibm1047_table[] = { |
| 769 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, /* 16 */ |
| 770 | 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, /* 32 */ |
| 771 | 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, /* 48 */ |
| 772 | 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, /* 64 */ |
| 773 | 64, -1, -1, -1, -1, -1, -1, -1, -1, -1, 74, 75, 76, 77, 78, 79, /* 80 */ |
| 774 | 80, -1, -1, -1, -1, -1, -1, -1, -1, -1, 90, 91, 92, 93, 94,176, /* 96 */ |
| 775 | 96, 97, -1, -1, -1, -1, -1, -1, -1, -1,106,107,108,109,110,111, /* 112 */ |
| 776 | -1, -1, -1, -1, -1, -1, -1, -1, -1,121,122,123,124,125,126,127, /* 128 */ |
| 777 | -1,129,130,131,132,133,134,135,136,137, -1, -1, -1, -1, -1, -1, /* 144 */ |
| 778 | -1,145,146,147,148,149,150,151,152,153, -1, -1, -1, -1, -1, -1, /* 160 */ |
| 779 | -1,161,162,163,164,165,166,167,168,169, -1, -1, -1, -1, -1, -1, /* 176 */ |
| 780 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 192 */ |
| 781 | 192,193,194,195,196,197,198,199,200,201, -1, -1, -1, -1, -1, -1, /* 208 */ |
| 782 | 208,209,210,211,212,213,214,215,216,217, -1, -1, -1, -1, -1, -1, /* 224 */ |
| 783 | 224, -1,226,227,228,229,230,231,232,233, -1, -1, -1, -1, -1, -1, /* 240 */ |
| 784 | 240,241,242,243,244,245,246,247,248,249, -1, -1, -1, -1, -1,255 /* 256 */ |
| 785 | }; |
| 786 | |
| 787 | |
| 788 | static int ibm1047_to_ascii_table[] = { |
| 789 | 0, 1, 2, 3, -1, 9, -1,127, -1, -1, -1, 11, 12, 13, 14, 15, /* 16 */ |
| 790 | 16, 17, 18, 19, -1, -1, 8, -1, 24, 25, -1, -1, 28, 29, 30, 31, /* 32 */ |
| 791 | -1, -1, -1, -1, -1, 10, 23, 27, -1, -1, -1, -1, -1, 5, 6, 7, /* 48 */ |
| 792 | -1, -1, 22, -1, -1, -1, -1, 4, -1, -1, -1, -1, 20, 21, -1, 26, /* 64 */ |
| 793 | 32, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 46, 60, 40, 43,124, /* 80 */ |
| 794 | 38, -1, -1, -1, -1, -1, -1, -1, -1, -1, 33, 36, 42, 41, 59, 94, /* 96 */ |
| 795 | 45, 47, -1, -1, -1, -1, -1, -1, -1, -1, -1, 44, 37, 95, 62, 63, /* 112 */ |
| 796 | -1, -1, -1, -1, -1, -1, -1, -1, -1, 96, 58, 35, 64, 39, 61, 34, /* 128 */ |
| 797 | -1, 97, 98, 99,100,101,102,103,104,105, -1, -1, -1, -1, -1, -1, /* 144 */ |
| 798 | -1,106,107,108,109,110,111,112,113,114, -1, -1, -1, -1, -1, -1, /* 160 */ |
| 799 | -1,126,115,116,117,118,119,120,121,122, -1, -1, -1, 91, -1, -1, /* 176 */ |
| 800 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 93, -1, -1, /* 192 */ |
| 801 | 123, 65, 66, 67, 68, 69, 70, 71, 72, 73, -1, -1, -1, -1, -1, -1, /* 208 */ |
| 802 | 125, 74, 75, 76, 77, 78, 79, 80, 81, 82, -1, -1, -1, -1, -1, -1, /* 224 */ |
| 803 | 92, -1, 83, 84, 85, 86, 87, 88, 89, 90, -1, -1, -1, -1, -1, -1, /* 240 */ |
| 804 | 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, -1, -1, -1, -1, -1, -1 /* 256 */ |
| 805 | }; |
| 806 | |
| 807 | |
| 808 | static int ibm1047_to_iso_8859_1_table[] = { |
| 809 | 0, 1, 2, 3,156, 9,134,127,151,141,142, 11, 12, 13, 14, 15, /* 16 */ |
| 810 | 16, 17, 18, 19,157,133, 8,135, 24, 25,146,143, 28, 29, 30, 31, /* 32 */ |
| 811 | 128,129,130,131,132, 10, 23, 27,136,137,138,139,140, 5, 6, 7, /* 48 */ |
| 812 | 144,145, 22,147,148,149,150, 4,152,153,154,155, 20, 21,158, 26, /* 64 */ |
| 813 | 32,160,226,228,224,225,227,229,231,241,162, 46, 60, 40, 43,124, /* 80 */ |
| 814 | 38,233,234,235,232,237,238,239,236,223, 33, 36, 42, 41, 59, 94, /* 96 */ |
| 815 | 45, 47,194,196,192,193,195,197,199,209,166, 44, 37, 95, 62, 63, /* 112 */ |
| 816 | 248,201,202,203,200,205,206,207,204, 96, 58, 35, 64, 39, 61, 34, /* 128 */ |
| 817 | 216, 97, 98, 99,100,101,102,103,104,105,171,187,240,253,254,177, /* 144 */ |
| 818 | 176,106,107,108,109,110,111,112,113,114,170,186,230,184,198,164, /* 160 */ |
| 819 | 181,126,115,116,117,118,119,120,121,122,161,191,208, 91,222,174, /* 176 */ |
| 820 | 172,163,165,183,169,167,182,188,189,190,221,168,175, 93,180,215, /* 192 */ |
| 821 | 123, 65, 66, 67, 68, 69, 70, 71, 72, 73,173,244,246,242,243,245, /* 208 */ |
| 822 | 125, 74, 75, 76, 77, 78, 79, 80, 81, 82,185,251,252,249,250,255, /* 224 */ |
| 823 | 92,247, 83, 84, 85, 86, 87, 88, 89, 90,178,212,214,210,211,213, /* 240 */ |
| 824 | 48, 49, 50, 51, 52, 53, 54, 55, 56, 57,179,219,220,217,218,159 /* 256 */ |
| 825 | }; |
| 826 | |
| 827 | |
| 828 | static int ibm1047_to_ebcdic_us_table[] = { |
| 829 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, /* 16 */ |
| 830 | 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, /* 32 */ |
| 831 | 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, /* 48 */ |
| 832 | 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, /* 64 */ |
| 833 | 64, -1, -1, -1, -1, -1, -1, -1, -1, -1, 74, 75, 76, 77, 78, 79, /* 80 */ |
| 834 | 80, -1, -1, -1, -1, -1, -1, -1, -1, -1, 90, 91, 92, 93, 94, -1, /* 96 */ |
| 835 | 96, 97, -1, -1, -1, -1, -1, -1, -1, -1,106,107,108,109,110,111, /* 112 */ |
| 836 | -1, -1, -1, -1, -1, -1, -1, -1, -1,121,122,123,124,125,126,127, /* 128 */ |
| 837 | -1,129,130,131,132,133,134,135,136,137, -1, -1, -1, -1, -1, -1, /* 144 */ |
| 838 | -1,145,146,147,148,149,150,151,152,153, -1, -1, -1, -1, -1, -1, /* 160 */ |
| 839 | -1,161,162,163,164,165,166,167,168,169, -1, -1, -1, -1, -1, -1, /* 176 */ |
| 840 | 95, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 192 */ |
| 841 | 192,193,194,195,196,197,198,199,200,201, -1, -1, -1, -1, -1, -1, /* 208 */ |
| 842 | 208,209,210,211,212,213,214,215,216,217, -1, -1, -1, -1, -1, -1, /* 224 */ |
| 843 | 224, -1,226,227,228,229,230,231,232,233, -1, -1, -1, -1, -1, -1, /* 240 */ |
| 844 | 240,241,242,243,244,245,246,247,248,249, -1, -1, -1, -1, -1,255 /* 256 */ |
| 845 | }; |
| 846 | |
| 847 | |
| 848 | static int |
| 849 | table_convert_char (void *baton, int from, int *to) |
| 850 | { |
| 851 | int *table = (int *) baton; |
| 852 | |
| 853 | if (0 <= from && from <= 255 |
| 854 | && table[from] != -1) |
| 855 | { |
| 856 | *to = table[from]; |
| 857 | return 1; |
| 858 | } |
| 859 | else |
| 860 | return 0; |
| 861 | } |
| 862 | |
| 863 | |
| 864 | static struct translation * |
| 865 | table_translation (const char *from, const char *to, int *table, |
| 866 | const char *(*c_target_char_has_backslash_escape) |
| 867 | (void *baton, int target_char), |
| 868 | void *c_target_char_has_backslash_escape_baton, |
| 869 | int (*c_parse_backslash) (void *baton, |
| 870 | int host_char, |
| 871 | int *target_char), |
| 872 | void *c_parse_backslash_baton) |
| 873 | { |
| 874 | struct translation *t = xmalloc (sizeof (*t)); |
| 875 | |
| 876 | memset (t, 0, sizeof (*t)); |
| 877 | t->from = from; |
| 878 | t->to = to; |
| 879 | t->c_target_char_has_backslash_escape = c_target_char_has_backslash_escape; |
| 880 | t->c_target_char_has_backslash_escape_baton |
| 881 | = c_target_char_has_backslash_escape_baton; |
| 882 | t->c_parse_backslash = c_parse_backslash; |
| 883 | t->c_parse_backslash_baton = c_parse_backslash_baton; |
| 884 | t->convert_char = table_convert_char; |
| 885 | t->convert_char_baton = (void *) table; |
| 886 | |
| 887 | return t; |
| 888 | } |
| 889 | |
| 890 | |
| 891 | static struct translation * |
| 892 | simple_table_translation (const char *from, const char *to, int *table) |
| 893 | { |
| 894 | return table_translation (from, to, table, 0, 0, 0, 0); |
| 895 | } |
| 896 | |
| 897 | |
| 898 | \f |
| 899 | /* Setting and retrieving the host and target charsets. */ |
| 900 | |
| 901 | |
| 902 | /* The current host and target character sets. */ |
| 903 | static struct charset *current_host_charset, *current_target_charset; |
| 904 | |
| 905 | /* The current functions and batons we should use for the functions in |
| 906 | charset.h. */ |
| 907 | |
| 908 | static const char *(*c_target_char_has_backslash_escape_func) |
| 909 | (void *baton, int target_char); |
| 910 | static void *c_target_char_has_backslash_escape_baton; |
| 911 | |
| 912 | static int (*c_parse_backslash_func) (void *baton, |
| 913 | int host_char, |
| 914 | int *target_char); |
| 915 | static void *c_parse_backslash_baton; |
| 916 | |
| 917 | static int (*host_char_to_target_func) (void *baton, |
| 918 | int host_char, |
| 919 | int *target_char); |
| 920 | static void *host_char_to_target_baton; |
| 921 | |
| 922 | static int (*target_char_to_host_func) (void *baton, |
| 923 | int target_char, |
| 924 | int *host_char); |
| 925 | static void *target_char_to_host_baton; |
| 926 | |
| 927 | |
| 928 | /* Cached iconv conversions, that might be useful to fallback |
| 929 | routines. */ |
| 930 | static struct cached_iconv cached_iconv_host_to_target; |
| 931 | static struct cached_iconv cached_iconv_target_to_host; |
| 932 | |
| 933 | \f |
| 934 | /* Charset structures manipulation functions. */ |
| 935 | |
| 936 | static struct charset * |
| 937 | lookup_charset_or_error (const char *name) |
| 938 | { |
| 939 | struct charset *cs = lookup_charset (name); |
| 940 | |
| 941 | if (! cs) |
| 942 | error (_("GDB doesn't know of any character set named `%s'."), name); |
| 943 | |
| 944 | return cs; |
| 945 | } |
| 946 | |
| 947 | static void |
| 948 | check_valid_host_charset (struct charset *cs) |
| 949 | { |
| 950 | if (! cs->valid_host_charset) |
| 951 | error (_("GDB can't use `%s' as its host character set."), cs->name); |
| 952 | } |
| 953 | |
| 954 | /* Set the host and target character sets to HOST and TARGET. */ |
| 955 | static void |
| 956 | set_host_and_target_charsets (struct charset *host, struct charset *target) |
| 957 | { |
| 958 | struct translation *h2t, *t2h; |
| 959 | |
| 960 | /* If they're not both initialized yet, then just do nothing for |
| 961 | now. As soon as we're done running our initialize function, |
| 962 | everything will be initialized. */ |
| 963 | if (! host || ! target) |
| 964 | { |
| 965 | current_host_charset = host; |
| 966 | current_target_charset = target; |
| 967 | return; |
| 968 | } |
| 969 | |
| 970 | h2t = lookup_translation (host->name, target->name); |
| 971 | t2h = lookup_translation (target->name, host->name); |
| 972 | |
| 973 | /* If the translations don't provide conversion functions, make sure |
| 974 | iconv can back them up. Do this *before* modifying any state. */ |
| 975 | if (host != target) |
| 976 | { |
| 977 | if (! h2t || ! h2t->convert_char) |
| 978 | { |
| 979 | if (check_iconv_cache (&cached_iconv_host_to_target, host, target) |
| 980 | < 0) |
| 981 | error (_("GDB can't convert from the `%s' character set to `%s'."), |
| 982 | host->name, target->name); |
| 983 | } |
| 984 | if (! t2h || ! t2h->convert_char) |
| 985 | { |
| 986 | if (check_iconv_cache (&cached_iconv_target_to_host, target, host) |
| 987 | < 0) |
| 988 | error (_("GDB can't convert from the `%s' character set to `%s'."), |
| 989 | target->name, host->name); |
| 990 | } |
| 991 | } |
| 992 | |
| 993 | if (t2h && t2h->c_target_char_has_backslash_escape) |
| 994 | { |
| 995 | c_target_char_has_backslash_escape_func |
| 996 | = t2h->c_target_char_has_backslash_escape; |
| 997 | c_target_char_has_backslash_escape_baton |
| 998 | = t2h->c_target_char_has_backslash_escape_baton; |
| 999 | } |
| 1000 | else |
| 1001 | c_target_char_has_backslash_escape_func |
| 1002 | = default_c_target_char_has_backslash_escape; |
| 1003 | |
| 1004 | if (h2t && h2t->c_parse_backslash) |
| 1005 | { |
| 1006 | c_parse_backslash_func = h2t->c_parse_backslash; |
| 1007 | c_parse_backslash_baton = h2t->c_parse_backslash_baton; |
| 1008 | } |
| 1009 | else |
| 1010 | c_parse_backslash_func = default_c_parse_backslash; |
| 1011 | |
| 1012 | if (h2t && h2t->convert_char) |
| 1013 | { |
| 1014 | host_char_to_target_func = h2t->convert_char; |
| 1015 | host_char_to_target_baton = h2t->convert_char_baton; |
| 1016 | } |
| 1017 | else if (host == target) |
| 1018 | host_char_to_target_func = identity_either_char_to_other; |
| 1019 | else |
| 1020 | { |
| 1021 | host_char_to_target_func = iconv_convert; |
| 1022 | host_char_to_target_baton = &cached_iconv_host_to_target; |
| 1023 | } |
| 1024 | |
| 1025 | if (t2h && t2h->convert_char) |
| 1026 | { |
| 1027 | target_char_to_host_func = t2h->convert_char; |
| 1028 | target_char_to_host_baton = t2h->convert_char_baton; |
| 1029 | } |
| 1030 | else if (host == target) |
| 1031 | target_char_to_host_func = identity_either_char_to_other; |
| 1032 | else |
| 1033 | { |
| 1034 | target_char_to_host_func = iconv_convert; |
| 1035 | target_char_to_host_baton = &cached_iconv_target_to_host; |
| 1036 | } |
| 1037 | |
| 1038 | current_host_charset = host; |
| 1039 | current_target_charset = target; |
| 1040 | } |
| 1041 | |
| 1042 | /* Do the real work of setting the host charset. */ |
| 1043 | static void |
| 1044 | set_host_charset (const char *charset) |
| 1045 | { |
| 1046 | struct charset *cs = lookup_charset_or_error (charset); |
| 1047 | check_valid_host_charset (cs); |
| 1048 | set_host_and_target_charsets (cs, current_target_charset); |
| 1049 | } |
| 1050 | |
| 1051 | /* Do the real work of setting the target charset. */ |
| 1052 | static void |
| 1053 | set_target_charset (const char *charset) |
| 1054 | { |
| 1055 | struct charset *cs = lookup_charset_or_error (charset); |
| 1056 | |
| 1057 | set_host_and_target_charsets (current_host_charset, cs); |
| 1058 | } |
| 1059 | |
| 1060 | \f |
| 1061 | /* 'Set charset', 'set host-charset', 'set target-charset', 'show |
| 1062 | charset' sfunc's. */ |
| 1063 | |
| 1064 | /* This is the sfunc for the 'set charset' command. */ |
| 1065 | static void |
| 1066 | set_charset_sfunc (char *charset, int from_tty, struct cmd_list_element *c) |
| 1067 | { |
| 1068 | struct charset *cs = lookup_charset_or_error (host_charset_name); |
| 1069 | check_valid_host_charset (cs); |
| 1070 | /* CAREFUL: set the target charset here as well. */ |
| 1071 | target_charset_name = host_charset_name; |
| 1072 | set_host_and_target_charsets (cs, cs); |
| 1073 | } |
| 1074 | |
| 1075 | /* 'set host-charset' command sfunc. We need a wrapper here because |
| 1076 | the function needs to have a specific signature. */ |
| 1077 | static void |
| 1078 | set_host_charset_sfunc (char *charset, int from_tty, |
| 1079 | struct cmd_list_element *c) |
| 1080 | { |
| 1081 | set_host_charset (host_charset_name); |
| 1082 | } |
| 1083 | |
| 1084 | /* Wrapper for the 'set target-charset' command. */ |
| 1085 | static void |
| 1086 | set_target_charset_sfunc (char *charset, int from_tty, |
| 1087 | struct cmd_list_element *c) |
| 1088 | { |
| 1089 | set_target_charset (target_charset_name); |
| 1090 | } |
| 1091 | |
| 1092 | /* sfunc for the 'show charset' command. */ |
| 1093 | static void |
| 1094 | show_charset (struct ui_file *file, int from_tty, struct cmd_list_element *c, |
| 1095 | const char *name) |
| 1096 | { |
| 1097 | if (current_host_charset == current_target_charset) |
| 1098 | fprintf_filtered (file, |
| 1099 | _("The current host and target character set is `%s'.\n"), |
| 1100 | host_charset ()); |
| 1101 | else |
| 1102 | { |
| 1103 | fprintf_filtered (file, _("The current host character set is `%s'.\n"), |
| 1104 | host_charset ()); |
| 1105 | fprintf_filtered (file, _("The current target character set is `%s'.\n"), |
| 1106 | target_charset ()); |
| 1107 | } |
| 1108 | } |
| 1109 | |
| 1110 | \f |
| 1111 | /* Accessor functions. */ |
| 1112 | |
| 1113 | const char * |
| 1114 | host_charset (void) |
| 1115 | { |
| 1116 | return current_host_charset->name; |
| 1117 | } |
| 1118 | |
| 1119 | const char * |
| 1120 | target_charset (void) |
| 1121 | { |
| 1122 | return current_target_charset->name; |
| 1123 | } |
| 1124 | |
| 1125 | |
| 1126 | \f |
| 1127 | /* Public character management functions. */ |
| 1128 | |
| 1129 | |
| 1130 | const char * |
| 1131 | c_target_char_has_backslash_escape (int target_char) |
| 1132 | { |
| 1133 | return ((*c_target_char_has_backslash_escape_func) |
| 1134 | (c_target_char_has_backslash_escape_baton, target_char)); |
| 1135 | } |
| 1136 | |
| 1137 | |
| 1138 | int |
| 1139 | c_parse_backslash (int host_char, int *target_char) |
| 1140 | { |
| 1141 | return (*c_parse_backslash_func) (c_parse_backslash_baton, |
| 1142 | host_char, target_char); |
| 1143 | } |
| 1144 | |
| 1145 | |
| 1146 | int |
| 1147 | host_char_print_literally (int host_char) |
| 1148 | { |
| 1149 | return ((*current_host_charset->host_char_print_literally) |
| 1150 | (current_host_charset->host_char_print_literally_baton, |
| 1151 | host_char)); |
| 1152 | } |
| 1153 | |
| 1154 | |
| 1155 | int |
| 1156 | target_char_to_control_char (int target_char, int *target_ctrl_char) |
| 1157 | { |
| 1158 | return ((*current_target_charset->target_char_to_control_char) |
| 1159 | (current_target_charset->target_char_to_control_char_baton, |
| 1160 | target_char, target_ctrl_char)); |
| 1161 | } |
| 1162 | |
| 1163 | |
| 1164 | int |
| 1165 | host_char_to_target (int host_char, int *target_char) |
| 1166 | { |
| 1167 | return ((*host_char_to_target_func) |
| 1168 | (host_char_to_target_baton, host_char, target_char)); |
| 1169 | } |
| 1170 | |
| 1171 | |
| 1172 | int |
| 1173 | target_char_to_host (int target_char, int *host_char) |
| 1174 | { |
| 1175 | return ((*target_char_to_host_func) |
| 1176 | (target_char_to_host_baton, target_char, host_char)); |
| 1177 | } |
| 1178 | |
| 1179 | |
| 1180 | \f |
| 1181 | /* The charset.c module initialization function. */ |
| 1182 | |
| 1183 | extern initialize_file_ftype _initialize_charset; /* -Wmissing-prototype */ |
| 1184 | |
| 1185 | void |
| 1186 | _initialize_charset (void) |
| 1187 | { |
| 1188 | struct cmd_list_element *new_cmd; |
| 1189 | |
| 1190 | /* Register all the character set GDB knows about. |
| 1191 | |
| 1192 | You should use the same names that iconv does, where possible, to |
| 1193 | take advantage of the iconv-based default behaviors. |
| 1194 | |
| 1195 | CAUTION: if you register a character set, you must also register |
| 1196 | as many translations as are necessary to make that character set |
| 1197 | interoperate correctly with all the other character sets. We do |
| 1198 | provide default behaviors when no translation is available, or |
| 1199 | when a translation's function pointer for a particular operation |
| 1200 | is zero. Hopefully, these defaults will be correct often enough |
| 1201 | that we won't need to provide too many translations. */ |
| 1202 | register_charset (simple_charset ("ASCII", 1, |
| 1203 | ascii_print_literally, 0, |
| 1204 | ascii_to_control, 0)); |
| 1205 | register_charset (iso_8859_family_charset ("ISO-8859-1")); |
| 1206 | register_charset (ebcdic_family_charset ("EBCDIC-US")); |
| 1207 | register_charset (ebcdic_family_charset ("IBM1047")); |
| 1208 | register_iconv_charsets (); |
| 1209 | |
| 1210 | { |
| 1211 | struct { char *from; char *to; int *table; } tlist[] = { |
| 1212 | { "ASCII", "ISO-8859-1", ascii_to_iso_8859_1_table }, |
| 1213 | { "ASCII", "EBCDIC-US", ascii_to_ebcdic_us_table }, |
| 1214 | { "ASCII", "IBM1047", ascii_to_ibm1047_table }, |
| 1215 | { "ISO-8859-1", "ASCII", iso_8859_1_to_ascii_table }, |
| 1216 | { "ISO-8859-1", "EBCDIC-US", iso_8859_1_to_ebcdic_us_table }, |
| 1217 | { "ISO-8859-1", "IBM1047", iso_8859_1_to_ibm1047_table }, |
| 1218 | { "EBCDIC-US", "ASCII", ebcdic_us_to_ascii_table }, |
| 1219 | { "EBCDIC-US", "ISO-8859-1", ebcdic_us_to_iso_8859_1_table }, |
| 1220 | { "EBCDIC-US", "IBM1047", ebcdic_us_to_ibm1047_table }, |
| 1221 | { "IBM1047", "ASCII", ibm1047_to_ascii_table }, |
| 1222 | { "IBM1047", "ISO-8859-1", ibm1047_to_iso_8859_1_table }, |
| 1223 | { "IBM1047", "EBCDIC-US", ibm1047_to_ebcdic_us_table } |
| 1224 | }; |
| 1225 | |
| 1226 | int i; |
| 1227 | |
| 1228 | for (i = 0; i < (sizeof (tlist) / sizeof (tlist[0])); i++) |
| 1229 | register_translation (simple_table_translation (tlist[i].from, |
| 1230 | tlist[i].to, |
| 1231 | tlist[i].table)); |
| 1232 | } |
| 1233 | |
| 1234 | set_host_charset (host_charset_name); |
| 1235 | set_target_charset (target_charset_name); |
| 1236 | |
| 1237 | add_setshow_enum_cmd ("charset", class_support, |
| 1238 | host_charset_enum, &host_charset_name, _("\ |
| 1239 | Set the host and target character sets."), _("\ |
| 1240 | Show the host and target character sets."), _("\ |
| 1241 | The `host character set' is the one used by the system GDB is running on.\n\ |
| 1242 | The `target character set' is the one used by the program being debugged.\n\ |
| 1243 | You may only use supersets of ASCII for your host character set; GDB does\n\ |
| 1244 | not support any others.\n\ |
| 1245 | To see a list of the character sets GDB supports, type `set charset <TAB>'."), |
| 1246 | /* Note that the sfunc below needs to set |
| 1247 | target_charset_name, because the 'set |
| 1248 | charset' command sets two variables. */ |
| 1249 | set_charset_sfunc, |
| 1250 | show_charset, |
| 1251 | &setlist, &showlist); |
| 1252 | |
| 1253 | add_setshow_enum_cmd ("host-charset", class_support, |
| 1254 | host_charset_enum, &host_charset_name, _("\ |
| 1255 | Set the host character set."), _("\ |
| 1256 | Show the host character set."), _("\ |
| 1257 | The `host character set' is the one used by the system GDB is running on.\n\ |
| 1258 | You may only use supersets of ASCII for your host character set; GDB does\n\ |
| 1259 | not support any others.\n\ |
| 1260 | To see a list of the character sets GDB supports, type `set host-charset <TAB>'."), |
| 1261 | set_host_charset_sfunc, |
| 1262 | show_host_charset_name, |
| 1263 | &setlist, &showlist); |
| 1264 | |
| 1265 | add_setshow_enum_cmd ("target-charset", class_support, |
| 1266 | target_charset_enum, &target_charset_name, _("\ |
| 1267 | Set the target character set."), _("\ |
| 1268 | Show the target character set."), _("\ |
| 1269 | The `target character set' is the one used by the program being debugged.\n\ |
| 1270 | GDB translates characters and strings between the host and target\n\ |
| 1271 | character sets as needed.\n\ |
| 1272 | To see a list of the character sets GDB supports, type `set target-charset'<TAB>"), |
| 1273 | set_target_charset_sfunc, |
| 1274 | show_target_charset_name, |
| 1275 | &setlist, &showlist); |
| 1276 | } |