Emeric Vigier | 2f62582 | 2012-08-06 11:09:52 -0400 | [diff] [blame] | 1 | // Copyright (C) 1999-2005 Open Source Telecom Corporation. |
| 2 | // Copyright (C) 2006-2010 David Sugar, Tycho Softworks. |
| 3 | // |
| 4 | // This program is free software; you can redistribute it and/or modify |
| 5 | // it under the terms of the GNU General Public License as published by |
| 6 | // the Free Software Foundation; either version 2 of the License, or |
| 7 | // (at your option) any later version. |
| 8 | // |
| 9 | // This program is distributed in the hope that it will be useful, |
| 10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | // GNU General Public License for more details. |
| 13 | // |
| 14 | // You should have received a copy of the GNU General Public License |
| 15 | // along with this program; if not, write to the Free Software |
| 16 | // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 17 | // |
| 18 | // As a special exception, you may use this file as part of a free software |
| 19 | // library without restriction. Specifically, if other files instantiate |
| 20 | // templates or use macros or inline functions from this file, or you compile |
| 21 | // this file and link it with other files to produce an executable, this |
| 22 | // file does not by itself cause the resulting executable to be covered by |
| 23 | // the GNU General Public License. This exception does not however |
| 24 | // invalidate any other reasons why the executable file might be covered by |
| 25 | // the GNU General Public License. |
| 26 | // |
| 27 | // This exception applies only to the code released under the name GNU |
| 28 | // Common C++. If you copy code from other releases into a copy of GNU |
| 29 | // Common C++, as the General Public License permits, the exception does |
| 30 | // not apply to the code that you add in this way. To avoid misleading |
| 31 | // anyone as to the status of such modified files, you must delete |
| 32 | // this exception notice from them. |
| 33 | // |
| 34 | // If you write modifications of your own for GNU Common C++, it is your choice |
| 35 | // whether to permit this exception to apply to your modifications. |
| 36 | // If you do not wish that, delete this exception notice. |
| 37 | // |
| 38 | |
| 39 | #include <cc++/config.h> |
| 40 | #include <cc++/export.h> |
| 41 | #include <cc++/thread.h> |
| 42 | #include <cc++/misc.h> |
| 43 | #include <cc++/strchar.h> |
| 44 | #include <cc++/string.h> |
| 45 | #include "private.h" |
| 46 | |
| 47 | #ifdef __BORLANDC__ |
| 48 | #include <stdarg.h> |
| 49 | #include <stdio.h> |
| 50 | #include <stdlib.h> |
| 51 | #else |
| 52 | #include <cstdarg> |
| 53 | #include <cstdio> |
| 54 | #include <cstdlib> |
| 55 | #endif |
| 56 | |
| 57 | #ifdef CCXX_NAMESPACES |
| 58 | namespace ost { |
| 59 | using std::streambuf; |
| 60 | using std::ofstream; |
| 61 | using std::ostream; |
| 62 | using std::endl; |
| 63 | using std::ios; |
| 64 | #endif |
| 65 | |
| 66 | static Mutex mutex; |
| 67 | MemPager *String::pager = NULL; |
| 68 | char **String::idx = NULL; |
| 69 | |
| 70 | const unsigned String::minsize = ((sizeof(char *) + (sizeof(unsigned) * 2) + 1)); |
| 71 | const unsigned String::slotsize = 32; |
| 72 | const unsigned String::pagesize = 1024; |
| 73 | const unsigned String::slotlimit = 512; |
| 74 | const unsigned String::slotcount = ((slotlimit / slotsize) + 1); |
| 75 | const size_t String::npos = (size_t)(-1); |
| 76 | |
| 77 | String::String() |
| 78 | { |
| 79 | init(); |
| 80 | } |
| 81 | |
| 82 | String::String(std::string str) |
| 83 | { |
| 84 | init(); |
| 85 | set(str.c_str()); |
| 86 | } |
| 87 | |
| 88 | String::String(const String &original) |
| 89 | { |
| 90 | init(); |
| 91 | copy(original); |
| 92 | } |
| 93 | |
| 94 | String::String(size_t chars, const char chr) |
| 95 | { |
| 96 | init(); |
| 97 | resize(chars + 1); |
| 98 | memset(getText(), chr, chars); |
| 99 | setLength(chars); |
| 100 | } |
| 101 | |
| 102 | #ifdef HAVE_SNPRINTF |
| 103 | String::String(size_t chars, const char *format, ...) |
| 104 | { |
| 105 | va_list args; |
| 106 | va_start(args, format); |
| 107 | |
| 108 | init(); |
| 109 | resize(chars); |
| 110 | |
| 111 | char *ptr = getText(); |
| 112 | vsnprintf(ptr, chars, format, args); |
| 113 | setLength(strlen(ptr)); |
| 114 | va_end(args); |
| 115 | } |
| 116 | #else |
| 117 | String::String(size_t chars, const char *str) |
| 118 | { |
| 119 | init(); |
| 120 | resize(chars); |
| 121 | |
| 122 | if(!str || !*str) |
| 123 | return; |
| 124 | |
| 125 | set(str); |
| 126 | } |
| 127 | #endif |
| 128 | |
| 129 | String::String(const char *str) |
| 130 | { |
| 131 | init(); |
| 132 | set(str); |
| 133 | } |
| 134 | |
| 135 | String::String(const String &str, size_t start, size_t chars) |
| 136 | { |
| 137 | init(); |
| 138 | char *ptr = str.getText(); |
| 139 | size_t len = str.getLength(); |
| 140 | |
| 141 | if(start >= len) |
| 142 | return; |
| 143 | |
| 144 | ptr += start; |
| 145 | len -= start; |
| 146 | |
| 147 | if(chars >= len) |
| 148 | chars = len; |
| 149 | |
| 150 | set(ptr, chars); |
| 151 | } |
| 152 | |
| 153 | char String::at(ssize_t ind) const |
| 154 | { |
| 155 | if(ind < 0) |
| 156 | ind = (ssize_t)(getLength() - ind + 1); |
| 157 | if((size_t)ind > getLength() || ind < 0) |
| 158 | return 0; |
| 159 | |
| 160 | return (getText())[ind]; |
| 161 | } |
| 162 | |
| 163 | void String::insert(size_t start, const char *str, size_t chars) |
| 164 | { |
| 165 | char *ptr = getText(); |
| 166 | size_t len = getLength(); |
| 167 | size_t sz = getSize(); |
| 168 | |
| 169 | if(!str) |
| 170 | str = ""; |
| 171 | |
| 172 | if(!chars) |
| 173 | chars = strlen(str); |
| 174 | |
| 175 | if(!chars || start > len) |
| 176 | return; |
| 177 | |
| 178 | if(len + chars >= sz) { |
| 179 | resize(len + chars + 1); |
| 180 | ptr = getText(); |
| 181 | } |
| 182 | |
| 183 | if(start == len) { |
| 184 | memmove(ptr + start, str, chars); |
| 185 | len += chars; |
| 186 | setLength(len); |
| 187 | ptr[len] = 0; |
| 188 | return; |
| 189 | } |
| 190 | |
| 191 | memmove(ptr + start + chars, ptr + start, len - start); |
| 192 | memmove(ptr + start, str, chars); |
| 193 | len += chars; |
| 194 | setLength(len); |
| 195 | ptr[len] = 0; |
| 196 | return; |
| 197 | } |
| 198 | |
| 199 | |
| 200 | void String::insert(size_t start, const String &s) |
| 201 | { |
| 202 | insert(start, s.getText(), s.getLength()); |
| 203 | } |
| 204 | |
| 205 | void String::replace(size_t start, size_t len, const char *cp, size_t chars) |
| 206 | { |
| 207 | erase(start, len); |
| 208 | insert(start, cp, chars); |
| 209 | } |
| 210 | |
| 211 | void String::replace(size_t start, size_t len, const String &s) |
| 212 | { |
| 213 | erase(start, len); |
| 214 | insert(start, s); |
| 215 | } |
| 216 | |
| 217 | void String::erase(size_t start, size_t chars) |
| 218 | { |
| 219 | size_t len = getLength(); |
| 220 | char *ptr = getText(); |
| 221 | |
| 222 | if(start >= len) |
| 223 | return; |
| 224 | |
| 225 | if(start + chars >= len || chars == npos || !chars) { |
| 226 | setLength(start); |
| 227 | ptr[start] = 0; |
| 228 | return; |
| 229 | } |
| 230 | |
| 231 | memmove(ptr + start, ptr + start + chars, len - start - chars); |
| 232 | len -= chars; |
| 233 | setLength(len); |
| 234 | ptr[len] = 0; |
| 235 | } |
| 236 | |
| 237 | void String::append(const char *str, size_t offset, size_t len) |
| 238 | { |
| 239 | size_t slen = getLength(); |
| 240 | char *ptr = getText(); |
| 241 | |
| 242 | if(slen < offset) { |
| 243 | append(str, len); |
| 244 | return; |
| 245 | } |
| 246 | |
| 247 | setLength(offset); |
| 248 | ptr[offset] = 0; |
| 249 | append(str, len); |
| 250 | } |
| 251 | |
| 252 | void String::append(const char *str, size_t len) |
| 253 | { |
| 254 | if(!str) |
| 255 | return; |
| 256 | |
| 257 | if(!len) |
| 258 | len = strlen(str); |
| 259 | |
| 260 | if(!len) |
| 261 | return; |
| 262 | |
| 263 | if(getLength() + len >= getSize()) |
| 264 | resize(getLength() + len + 1); |
| 265 | memmove(getText() + getLength(), str, len); |
| 266 | len += getLength(); |
| 267 | setLength(len); |
| 268 | getText()[len] = 0; |
| 269 | return; |
| 270 | } |
| 271 | |
| 272 | void String::add(char c) |
| 273 | { |
| 274 | size_t len = getLength(); |
| 275 | char *ptr; |
| 276 | |
| 277 | if(len + 1 >= getSize()) |
| 278 | resize(len + 2); |
| 279 | |
| 280 | ptr = getText(); |
| 281 | ptr[len++] = c; |
| 282 | setLength(len); |
| 283 | ptr[len] = 0; |
| 284 | } |
| 285 | |
| 286 | void String::trim(size_t chars) |
| 287 | { |
| 288 | size_t len = getLength(); |
| 289 | char *ptr = getText(); |
| 290 | |
| 291 | if(chars >= len) |
| 292 | chars = len; |
| 293 | |
| 294 | len -= chars; |
| 295 | ptr[len] = 0; |
| 296 | setLength(len); |
| 297 | } |
| 298 | |
| 299 | String String::token(const char *delim, size_t offset) |
| 300 | { |
| 301 | char *ptr = getText(); |
| 302 | size_t len = getLength(); |
| 303 | size_t chars = 0; |
| 304 | String result; |
| 305 | bool found = false; |
| 306 | |
| 307 | if(offset >= len) |
| 308 | return result; |
| 309 | |
| 310 | len -= offset; |
| 311 | ptr += offset; |
| 312 | |
| 313 | while(chars < len) { |
| 314 | if(strchr(delim, ptr[chars])) { |
| 315 | found = true; |
| 316 | break; |
| 317 | } |
| 318 | ++chars; |
| 319 | } |
| 320 | |
| 321 | if(!chars && found) |
| 322 | erase(offset, 1); |
| 323 | |
| 324 | if(!chars) |
| 325 | return result; |
| 326 | |
| 327 | result.set(ptr, chars); |
| 328 | if(found) |
| 329 | ++chars; |
| 330 | erase(offset, chars); |
| 331 | return result; |
| 332 | } |
| 333 | |
| 334 | void String::strip(const char *chars) |
| 335 | { |
| 336 | size_t len = strtrim(chars, getText(), getLength()); |
| 337 | if(!len) { |
| 338 | setLength(len); |
| 339 | return; |
| 340 | } |
| 341 | setLength(strchop(chars, getText(), len)); |
| 342 | } |
| 343 | |
| 344 | #ifdef HAVE_SNPRINTF |
| 345 | const char *String::set(size_t chars, const char *format, ...) |
| 346 | { |
| 347 | va_list args; |
| 348 | va_start(args, format); |
| 349 | |
| 350 | if(chars <= minsize) |
| 351 | clear(); |
| 352 | |
| 353 | if(chars > getSize()) |
| 354 | resize(chars); |
| 355 | |
| 356 | char *ptr = getText(); |
| 357 | vsnprintf(ptr, chars, format, args); |
| 358 | setLength(strlen(ptr)); |
| 359 | va_end(args); |
| 360 | return ptr; |
| 361 | } |
| 362 | |
| 363 | void String::append(size_t chars, const char *format, ...) |
| 364 | { |
| 365 | va_list args; |
| 366 | va_start(args, format); |
| 367 | size_t len = getLength(); |
| 368 | |
| 369 | if(len + chars <= minsize) |
| 370 | clear(); |
| 371 | |
| 372 | if(len + chars > getSize()) |
| 373 | resize(len + chars); |
| 374 | |
| 375 | char *ptr = getText() + len; |
| 376 | vsnprintf(ptr, chars, format, args); |
| 377 | setLength(strlen(getText())); |
| 378 | va_end(args); |
| 379 | } |
| 380 | |
| 381 | #endif |
| 382 | const char *String::set(const char *str, size_t len) |
| 383 | { |
| 384 | if(!str) { |
| 385 | clear(); |
| 386 | return str; |
| 387 | } |
| 388 | |
| 389 | if(!len) |
| 390 | len = strlen(str); |
| 391 | |
| 392 | // if we are making a short string, lets clear prior alloc |
| 393 | |
| 394 | if(len < minsize) |
| 395 | clear(); |
| 396 | |
| 397 | if(len >= getSize()) |
| 398 | resize(len + 1); |
| 399 | memmove(getText(), str, len); |
| 400 | getText()[len] = 0; |
| 401 | setLength(len); |
| 402 | return str; |
| 403 | } |
| 404 | |
| 405 | void String::set(const String &str) |
| 406 | { |
| 407 | set(str.getText(), str.getLength()); |
| 408 | } |
| 409 | |
| 410 | void String::append(const String &str) |
| 411 | { |
| 412 | append(str.getText(), str.getLength()); |
| 413 | } |
| 414 | |
| 415 | |
| 416 | void String::copy(const String &original) |
| 417 | { |
| 418 | clear(); |
| 419 | |
| 420 | if(original.getLength() < minsize) { |
| 421 | content.ministring.length = (unsigned)original.getLength(); |
| 422 | memmove(content.ministring.text, original.getText(), original.getLength() + 1); |
| 423 | content.ministring.big = false; |
| 424 | return; |
| 425 | } |
| 426 | |
| 427 | // ptr = original.getText(); |
| 428 | content.bigstring.length = original.getLength(); |
| 429 | content.bigstring.size = setSize(original.getLength() + 1); |
| 430 | content.bigstring.text = getSpace(original.getLength() + 1); |
| 431 | content.ministring.big = true; |
| 432 | memmove(content.bigstring.text, original.getText(), original.getLength() + 1); |
| 433 | } |
| 434 | |
| 435 | String::~String() |
| 436 | { |
| 437 | clear(); |
| 438 | } |
| 439 | |
| 440 | void String::init(void) |
| 441 | { |
| 442 | content.ministring.big = false; |
| 443 | content.ministring.length = 0; |
| 444 | content.ministring.text[0] = 0; |
| 445 | } |
| 446 | |
| 447 | size_t String::search(const char *cp, size_t clen, size_t ind) const |
| 448 | { |
| 449 | size_t len = getLength(); |
| 450 | |
| 451 | if(!cp) |
| 452 | cp = ""; |
| 453 | |
| 454 | if(!clen) |
| 455 | clen = strlen(cp); |
| 456 | |
| 457 | while(clen + ind <= len) { |
| 458 | if(compare(cp, clen, ind) == 0) |
| 459 | return ind; |
| 460 | ++ind; |
| 461 | } |
| 462 | return npos; |
| 463 | } |
| 464 | |
| 465 | size_t String::find(const char *cp, size_t ind, size_t len, unsigned instance) const |
| 466 | { |
| 467 | size_t pos = npos; |
| 468 | |
| 469 | if(!cp) |
| 470 | cp = ""; |
| 471 | |
| 472 | if(!len) |
| 473 | len = strlen(cp); |
| 474 | |
| 475 | while(instance--) { |
| 476 | pos = search(cp, len, ind); |
| 477 | if(pos == npos) |
| 478 | break; |
| 479 | ind = pos + 1; |
| 480 | } |
| 481 | return pos; |
| 482 | } |
| 483 | |
| 484 | size_t String::rfind(const char *cp, size_t ind, size_t len) const |
| 485 | { |
| 486 | size_t result = npos; |
| 487 | |
| 488 | if(!cp) |
| 489 | cp = ""; |
| 490 | |
| 491 | if(!len) |
| 492 | len = strlen(cp); |
| 493 | |
| 494 | for(;;) { |
| 495 | ind = search(cp, len, ind); |
| 496 | if(ind == npos) |
| 497 | break; |
| 498 | result = ind++; |
| 499 | } |
| 500 | return result; |
| 501 | } |
| 502 | |
| 503 | unsigned String::count(const char *cp, size_t ind, size_t len) const |
| 504 | { |
| 505 | unsigned chars = 0; |
| 506 | if(!cp) |
| 507 | cp = ""; |
| 508 | |
| 509 | if(!len) |
| 510 | len = strlen(cp); |
| 511 | |
| 512 | for(;;) { |
| 513 | ind = search(cp, len, ind); |
| 514 | if(ind == npos) |
| 515 | break; |
| 516 | ++chars; |
| 517 | ++ind; |
| 518 | } |
| 519 | return chars; |
| 520 | } |
| 521 | |
| 522 | unsigned String::count(const String &str, size_t ind) const |
| 523 | { |
| 524 | return count(str.getText(), ind, str.getLength()); |
| 525 | } |
| 526 | |
| 527 | size_t String::find(const String &str, size_t ind, unsigned instance) const |
| 528 | { |
| 529 | return find(str.getText(), ind, str.getLength(), instance); |
| 530 | } |
| 531 | |
| 532 | size_t String::rfind(const String &str, size_t ind) const |
| 533 | { |
| 534 | return rfind(str.getText(), ind, str.getLength()); |
| 535 | } |
| 536 | |
| 537 | int String::compare(const char *cp, size_t len, size_t ind) const |
| 538 | { |
| 539 | if(!cp) |
| 540 | cp = ""; |
| 541 | |
| 542 | if(ind > getLength()) |
| 543 | return -1; |
| 544 | |
| 545 | if(!len) |
| 546 | return strcmp(getText() + ind, cp); |
| 547 | |
| 548 | return strncmp(getText() + ind, cp, len); |
| 549 | } |
| 550 | |
| 551 | bool String::isEmpty(void) const |
| 552 | { |
| 553 | char *ptr = getText(); |
| 554 | |
| 555 | if(!ptr || !*ptr) |
| 556 | return true; |
| 557 | |
| 558 | return false; |
| 559 | } |
| 560 | |
| 561 | void String::resize(size_t chars) |
| 562 | { |
| 563 | size_t len = getLength(); |
| 564 | char *ptr; |
| 565 | |
| 566 | if(len >= chars) |
| 567 | len = chars - 1; |
| 568 | |
| 569 | ++len; |
| 570 | |
| 571 | if(!isBig() && chars <= minsize) |
| 572 | return; |
| 573 | |
| 574 | if(!isBig()) { |
| 575 | ptr = getSpace(chars); |
| 576 | memmove(ptr, content.ministring.text, len); |
| 577 | ptr[--len] = 0; |
| 578 | content.ministring.big = true; |
| 579 | content.bigstring.text = ptr; |
| 580 | content.bigstring.length = len; |
| 581 | setSize(chars); |
| 582 | return; |
| 583 | } |
| 584 | |
| 585 | if(chars <= minsize && getSize() > slotlimit) { |
| 586 | ptr = getText(); |
| 587 | memmove(content.ministring.text, ptr, len); |
| 588 | content.ministring.text[--len] = 0; |
| 589 | content.ministring.big = false; |
| 590 | content.ministring.length = (unsigned)len; |
| 591 | delete[] ptr; |
| 592 | return; |
| 593 | } |
| 594 | |
| 595 | ptr = getSpace(chars); |
| 596 | memmove(ptr, getText(), len); |
| 597 | ptr[--len] = 0; |
| 598 | clear(); |
| 599 | setSize(chars); |
| 600 | content.bigstring.length = len; |
| 601 | content.bigstring.text = ptr; |
| 602 | content.ministring.big = true; |
| 603 | } |
| 604 | |
| 605 | void String::clear(void) |
| 606 | { |
| 607 | char **next; |
| 608 | unsigned slot; |
| 609 | |
| 610 | if(!isBig()) |
| 611 | goto end; |
| 612 | |
| 613 | if(!content.bigstring.text) |
| 614 | goto end; |
| 615 | |
| 616 | if(getSize() > slotlimit) { |
| 617 | delete[] content.bigstring.text; |
| 618 | goto end; |
| 619 | } |
| 620 | |
| 621 | slot = ((unsigned)getSize() - 1) / slotsize; |
| 622 | next = (char **)content.bigstring.text; |
| 623 | mutex.enterMutex(); |
| 624 | *next = idx[slot]; |
| 625 | idx[slot] = content.bigstring.text; |
| 626 | setLength(0); |
| 627 | content.bigstring.text = NULL; |
| 628 | mutex.leaveMutex(); |
| 629 | |
| 630 | end: |
| 631 | init(); |
| 632 | return; |
| 633 | } |
| 634 | |
| 635 | char *String::getSpace(size_t chars) |
| 636 | { |
| 637 | unsigned slot; |
| 638 | char *cp, **next; |
| 639 | |
| 640 | if(chars > slotlimit) |
| 641 | return new char[chars]; |
| 642 | |
| 643 | slot = (unsigned)chars / slotsize; |
| 644 | mutex.enterMutex(); |
| 645 | if(!pager) { |
| 646 | pager = new MemPager(pagesize); |
| 647 | idx = (char **)pager->alloc(sizeof(char *) * slotcount); |
| 648 | memset(idx, 0, sizeof(char *) * slotcount); |
| 649 | } |
| 650 | cp = idx[slot]; |
| 651 | if(cp) { |
| 652 | next = (char **)cp; |
| 653 | idx[slot] = *next; |
| 654 | } |
| 655 | else |
| 656 | cp = (char *)pager->alloc(++slot * slotsize); |
| 657 | mutex.leaveMutex(); |
| 658 | return cp; |
| 659 | } |
| 660 | |
| 661 | const char *String::getIndex(size_t ind) const |
| 662 | { |
| 663 | const char *dp = getText(); |
| 664 | |
| 665 | if(ind > getLength()) |
| 666 | return NULL; |
| 667 | |
| 668 | return (const char *)dp + ind; |
| 669 | } |
| 670 | |
| 671 | char *String::getText(void) const |
| 672 | { |
| 673 | if(isBig()) |
| 674 | return (char *)content.bigstring.text; |
| 675 | |
| 676 | return (char *)content.ministring.text; |
| 677 | } |
| 678 | |
| 679 | long String::getValue(long def) const |
| 680 | { |
| 681 | unsigned base = 10; |
| 682 | char *cp = getText(); |
| 683 | char *ep = 0; |
| 684 | long val; |
| 685 | |
| 686 | if(!cp) |
| 687 | return def; |
| 688 | |
| 689 | if(!strnicmp(cp, "0x", 2)) { |
| 690 | cp += 2; |
| 691 | base = 16; |
| 692 | } |
| 693 | |
| 694 | val = ::strtol(cp, &ep, base); |
| 695 | if(!ep || *ep) |
| 696 | return def; |
| 697 | return val; |
| 698 | } |
| 699 | |
| 700 | bool String::getBool(bool def) const |
| 701 | { |
| 702 | char *cp = getText(); |
| 703 | |
| 704 | if(!cp) |
| 705 | return def; |
| 706 | |
| 707 | if(isdigit(*cp)) { |
| 708 | if(!getValue(0)) |
| 709 | return false; |
| 710 | return true; |
| 711 | } |
| 712 | |
| 713 | if(!stricmp(cp, "true") || !stricmp(cp, "yes")) |
| 714 | return true; |
| 715 | |
| 716 | if(!stricmp(cp, "false") || !stricmp(cp, "no")) |
| 717 | return false; |
| 718 | |
| 719 | return def; |
| 720 | } |
| 721 | |
| 722 | const size_t String::getSize(void) const |
| 723 | { |
| 724 | if(isBig()) |
| 725 | return content.bigstring.size; |
| 726 | |
| 727 | return minsize; |
| 728 | } |
| 729 | |
| 730 | void String::setLength(size_t len) |
| 731 | { |
| 732 | if(isBig()) |
| 733 | content.bigstring.length = len; |
| 734 | else |
| 735 | content.ministring.length = (unsigned)len; |
| 736 | } |
| 737 | |
| 738 | size_t String::setSize(size_t chars) |
| 739 | { |
| 740 | if(chars <= minsize && !isBig()) |
| 741 | return minsize; |
| 742 | |
| 743 | if(chars <= slotlimit) { |
| 744 | size_t slotcount = chars / slotsize; |
| 745 | if((chars % slotsize)!=0) ++slotcount; |
| 746 | chars = slotcount*slotsize; |
| 747 | } |
| 748 | content.bigstring.size = chars; |
| 749 | return chars; |
| 750 | } |
| 751 | |
| 752 | const size_t String::getLength(void) const |
| 753 | { |
| 754 | if(isBig()) |
| 755 | return content.bigstring.length; |
| 756 | |
| 757 | return content.ministring.length; |
| 758 | } |
| 759 | |
| 760 | String operator+(const String &s1, const char c2) |
| 761 | { |
| 762 | String result(s1); |
| 763 | result.add(c2); |
| 764 | return result; |
| 765 | } |
| 766 | |
| 767 | String operator+(const String &s1, const String &s2) |
| 768 | { |
| 769 | String result(s1); |
| 770 | result.append(s2); |
| 771 | return result; |
| 772 | } |
| 773 | |
| 774 | String operator+(const String &s1, const char *s2) |
| 775 | { |
| 776 | String result(s1); |
| 777 | result += s2; |
| 778 | return result; |
| 779 | } |
| 780 | |
| 781 | String operator+(const char *s1, const String &s2) |
| 782 | { |
| 783 | String result(s1); |
| 784 | result += s2; |
| 785 | return result; |
| 786 | } |
| 787 | |
| 788 | String operator+(const char c1, const String &s2) |
| 789 | { |
| 790 | String result(1, c1); |
| 791 | result += s2; |
| 792 | return result; |
| 793 | } |
| 794 | |
| 795 | bool String::operator<(const String &s1) const |
| 796 | { |
| 797 | if(compare(s1.getText()) < 0) |
| 798 | return true; |
| 799 | |
| 800 | return false; |
| 801 | } |
| 802 | |
| 803 | bool String::operator<(const char *s1) const |
| 804 | { |
| 805 | if(compare(s1) < 0) |
| 806 | return true; |
| 807 | |
| 808 | return false; |
| 809 | } |
| 810 | |
| 811 | bool String::operator>(const String &s1) const |
| 812 | { |
| 813 | if(compare(s1.getText()) > 0) |
| 814 | return true; |
| 815 | |
| 816 | return false; |
| 817 | } |
| 818 | |
| 819 | bool String::operator>(const char *s1) const |
| 820 | { |
| 821 | if(compare(s1) > 0) |
| 822 | return true; |
| 823 | |
| 824 | return false; |
| 825 | } |
| 826 | |
| 827 | bool String::operator<=(const String &s1) const |
| 828 | { |
| 829 | if(compare(s1.getText()) <= 0) |
| 830 | return true; |
| 831 | |
| 832 | return false; |
| 833 | } |
| 834 | |
| 835 | bool String::operator<=(const char *s1) const |
| 836 | { |
| 837 | if(compare(s1) <= 0) |
| 838 | return true; |
| 839 | |
| 840 | return false; |
| 841 | } |
| 842 | |
| 843 | bool String::operator>=(const String &s1) const |
| 844 | { |
| 845 | if(compare(s1.getText()) >= 0) |
| 846 | return true; |
| 847 | |
| 848 | return false; |
| 849 | } |
| 850 | |
| 851 | bool String::operator>=(const char *s1) const |
| 852 | { |
| 853 | if(compare(s1) >= 0) |
| 854 | return true; |
| 855 | |
| 856 | return false; |
| 857 | } |
| 858 | |
| 859 | bool String::operator==(const String &s1) const |
| 860 | { |
| 861 | if(compare(s1.getText()) == 0) |
| 862 | return true; |
| 863 | |
| 864 | return false; |
| 865 | } |
| 866 | |
| 867 | bool String::operator==(const char *s1) const |
| 868 | { |
| 869 | if(compare(s1) == 0) |
| 870 | return true; |
| 871 | |
| 872 | return false; |
| 873 | } |
| 874 | |
| 875 | bool String::operator!=(const String &s1) const |
| 876 | { |
| 877 | if(compare(s1.getText()) != 0) |
| 878 | return true; |
| 879 | |
| 880 | return false; |
| 881 | } |
| 882 | |
| 883 | bool String::operator!=(const char *s1) const |
| 884 | { |
| 885 | if(compare(s1) != 0) |
| 886 | return true; |
| 887 | |
| 888 | return false; |
| 889 | } |
| 890 | |
| 891 | bool String::operator*=(const String &s1) const |
| 892 | { |
| 893 | return search(s1.getText(), s1.getLength()) != npos; |
| 894 | } |
| 895 | |
| 896 | bool String::operator*=(const char *s) const |
| 897 | { |
| 898 | return search(s) != npos; |
| 899 | } |
| 900 | |
| 901 | std::ostream &operator<<(std::ostream &os, const String &str) |
| 902 | { |
| 903 | os << str.getText(); |
| 904 | return os; |
| 905 | } |
| 906 | |
| 907 | void *StringObject::operator new(size_t size) NEW_THROWS |
| 908 | { |
| 909 | char *base; |
| 910 | size_t *sp; |
| 911 | size += sizeof(size_t); |
| 912 | |
| 913 | if(size > String::slotlimit) |
| 914 | return NULL; |
| 915 | |
| 916 | base = String::getSpace(size); |
| 917 | |
| 918 | if(!base) |
| 919 | return NULL; |
| 920 | |
| 921 | sp = (size_t *)base; |
| 922 | *sp = size; |
| 923 | base += sizeof(size_t); |
| 924 | return (void *)base; |
| 925 | } |
| 926 | |
| 927 | void StringObject::operator delete(void *ptr) |
| 928 | { |
| 929 | char **next; |
| 930 | unsigned slot; |
| 931 | size_t *size = (size_t *)ptr; |
| 932 | |
| 933 | --size; |
| 934 | ptr = size; |
| 935 | |
| 936 | slot = (unsigned)(((*size) - 1) / String::slotsize); |
| 937 | next = ((char **)(ptr)); |
| 938 | mutex.enter(); |
| 939 | *next = String::idx[slot]; |
| 940 | String::idx[slot] = (char *)ptr; |
| 941 | mutex.leave(); |
| 942 | } |
| 943 | |
| 944 | std::istream &getline(std::istream &is, String &str, char delim, size_t len) |
| 945 | { |
| 946 | if(!len) |
| 947 | len = str.getSize() - 1; |
| 948 | |
| 949 | if(len >= str.getSize()) |
| 950 | str.resize(len + 1); |
| 951 | |
| 952 | char *ptr = str.getText(); |
| 953 | is.getline(ptr, (std::streamsize)len, delim); |
| 954 | str.setLength(strlen(ptr)); |
| 955 | return is; |
| 956 | } |
| 957 | |
| 958 | SString::SString() : |
| 959 | String(), streambuf() |
| 960 | #ifdef HAVE_OLD_IOSTREAM |
| 961 | ,ostream() |
| 962 | #else |
| 963 | ,ostream((streambuf *)this) |
| 964 | #endif |
| 965 | { |
| 966 | #ifdef HAVE_OLD_IOSTREAM |
| 967 | ostream::init((streambuf *)this); |
| 968 | #endif |
| 969 | } |
| 970 | |
| 971 | SString::SString(const SString &from) : |
| 972 | String(from), streambuf() |
| 973 | #ifdef HAVE_OLD_IOSTREAM |
| 974 | ,ostream() |
| 975 | #else |
| 976 | ,ostream((streambuf *)this) |
| 977 | #endif |
| 978 | { |
| 979 | #ifdef HAVE_OLD_IOSTREAM |
| 980 | ostream::init((streambuf *)this); |
| 981 | #endif |
| 982 | } |
| 983 | |
| 984 | SString::~SString() |
| 985 | { |
| 986 | if(isBig()) |
| 987 | String::clear(); |
| 988 | } |
| 989 | |
| 990 | int SString::overflow(int c) |
| 991 | { |
| 992 | String::add((char)(c)); |
| 993 | return c; |
| 994 | } |
| 995 | |
| 996 | #ifdef HAVE_SNPRINTF |
| 997 | int strprintf(String &str, size_t size, const char *format, ...) |
| 998 | { |
| 999 | va_list args; |
| 1000 | va_start(args, format); |
| 1001 | int rtn; |
| 1002 | |
| 1003 | if(!size) |
| 1004 | size = str.getSize(); |
| 1005 | |
| 1006 | if(size > str.getSize()) |
| 1007 | str.resize(size); |
| 1008 | |
| 1009 | char *ptr = str.getText(); |
| 1010 | str.setLength(0); |
| 1011 | ptr[0] = 0; |
| 1012 | rtn = vsnprintf(ptr, size, format, args); |
| 1013 | str.setLength(strlen(ptr)); |
| 1014 | va_end(args); |
| 1015 | return rtn; |
| 1016 | } |
| 1017 | #endif |
| 1018 | |
| 1019 | #ifdef CCXX_NAMESPACES |
| 1020 | } |
| 1021 | #endif |
| 1022 | |
| 1023 | /** EMACS ** |
| 1024 | * Local variables: |
| 1025 | * mode: c++ |
| 1026 | * c-basic-offset: 4 |
| 1027 | * End: |
| 1028 | */ |