/usr/include/cxxtools/char.h is in libcxxtools-dev 2.2.1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 | /*
* Copyright (C) 2005-2007 Marc Boris Duerner
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* As a special exception, you may use this file as part of a free
* software library without restriction. Specifically, if other files
* instantiate templates or use macros or inline functions from this
* file, or you compile this file and link it with other files to
* produce an executable, this file does not by itself cause the
* resulting executable to be covered by the GNU General Public
* License. This exception does not however invalidate any other
* reasons why the executable file might be covered by the GNU Library
* General Public License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef CXXTOOLS_CHAR_H
#define CXXTOOLS_CHAR_H
#include <cxxtools/api.h>
#include <string>
#include <cstring>
#include <ios>
#include <stdint.h>
namespace cxxtools
{
/**
* @brief A lightweight Character class (32 bits).
*
* Unicode characters are 32-bit entities. This class represents such an entity. It is lightweight, so it
* can be used everywhere. Most compilers treat it like an unsigned int of 32 bits.
*
* This class provides methods for testing/classification, converting to and from other formats, comparing
* and case-converting. To convert a character or number to a instance of this class use one of the
* constructors provided. To check the type of the character use one of the method starting with "is", like
* isLetter() or isDigit(). To compare lower- or upper-case use isUpper() and isLower(). To compare two
* characters the corresponding operators are overloaded accordingly. Addition and substraction is supported
* as well. Comparison of numeric values (>, <, ==) is supported when using these operators.
*
* The classification methods operate on the full range of Unicode characters. All methods return $true$
* if the character is a certain type of character. These methods are are wrappers around category() which
* return the Unicode-defined category of each character.
*
* Comparison is critical in Unicode as it covers the characters of the entire world where characters which
* look the same may be different in the thinking of numeric values (aka positions in the Unicode table)
* Comparing characters will compare based purely on the numeric Unicode value (code point) of the characters.
* Upper- and lower-casing using upper() and lower() will only work if the character has a well-defined
* upper/lower-case equivalent.
*
* @see Category
*/
class Char
{
public:
typedef int32_t value_type;
//! Constructs a character with a value of 0.
Char()
: _value(0)
{}
//! Constructs a character using the given char as base for the character value.
Char(char ch)
: _value(value_type(static_cast<unsigned char>(ch)))
{}
//! Constructs a character using the given char as base for the character value.
Char(unsigned char ch)
: _value( value_type(ch) )
{}
//! Constructs a character using the given char as base for the character value.
Char(wchar_t ch)
: _value( value_type(static_cast<uint16_t>(ch)) )
{}
//! Constructs a character using the given unsigned 32-bit as base for the character value.
explicit Char(value_type ch)
: _value(ch)
{}
/**
* @brief Narrows this character into an 8-bit char if possible.
*
* If the character can not be converted into an 8-bit char because its value is
* greater than 255, the defaultCharacter which is passed to this method is returned.
*
* If this character is equal or lower than 255 the character is cast to char.
*
* @param def The default character which is returned if this character can not be narrowed
* @return An 8-bit char which is a narrowed representation of this character object or
* the default character if this character object's value is out of range (>255).
*/
char narrow(char def = '?') const;
wchar_t toWchar() const
{ return wchar_t(value()); }
static Char null()
{
return Char(0);
}
Char& operator=(const Char& ch)
{ _value = ch._value; return *this; }
/**
* @brief Returns the internal value (unsigned 32 bits) of this character.
* @return The 32-bit-value of this character.
*/
value_type value() const
{ return _value; }
/**
* @brief This conversion operator converts the internal value of this character to unsigned 32 bits.
*
* As the internal value also is an unsigned 32-bit value, the internal value of this character
* ist returned.
*
* @return The character converted to unsigned 32-bit.
*/
operator value_type() const
{ return _value; }
//! @brief Returns $true$ if the a and b are the same character; $false$ otherwise.
//! @return $true$ if the a and b are the same character; $false$ otherwise.
friend bool operator==(const Char& a, const Char& b)
{ return a.value() == b.value(); }
friend bool operator==(const Char& a, wchar_t b)
{ return a.value() == b; }
friend bool operator==(wchar_t a, const Char& b)
{ return a == b.value(); }
friend bool operator==(const Char& a, char b)
{ return a.value() == b; }
friend bool operator==(char a, const Char& b)
{ return a == b.value(); }
//! @brief Returns $true$ if the a and b are the same character; $false$ otherwise.
//! @return $true$ if the a and b are the same character; $false$ otherwise.
friend bool operator==(const Char& a, unsigned int b)
{ return a.value() == b; }
//! @brief Returns $true$ if the a and b are not the same character; $false$ otherwise.
//! @return $true$ if the a and b are not the same character; $false$ otherwise.
friend bool operator!=(const Char& a, const Char& b)
{ return a.value() != b.value(); }
friend bool operator!=(const Char& a, wchar_t b)
{ return a.value() != b; }
friend bool operator!=(wchar_t a, const Char& b)
{ return a != b.value(); }
friend bool operator!=(const Char& a, char b)
{ return a.value() != b; }
friend bool operator!=(char a, const Char& b)
{ return a != b.value(); }
//! @brief Returns $true$ if the numeric value of a is less than the numeric value of b; $false$ otherwise.
//! @return $true$ if the numeric value of a is less than the numeric value of b; $false$ otherwise.
friend bool operator<(const Char& a, const Char& b)
{ return a.value() < b.value(); }
friend bool operator<(const Char& a, wchar_t b)
{ return a.value() < b; }
friend bool operator<(wchar_t a, const Char& b)
{ return a < b.value(); }
friend bool operator<(const Char& a, char b)
{ return a.value() < b; }
friend bool operator<(char a, const Char& b)
{ return a < b.value(); }
//! @brief Returns $true$ if the numeric value of a is greater than the numeric value of b; $false$ otherwise.
//! @return $true$ if the numeric value of a is greater than the numeric value of b; $false$ otherwise.
friend bool operator>(const Char& a, const Char& b)
{ return a.value() > b.value(); }
friend bool operator>(const Char& a, wchar_t b)
{ return a.value() > b; }
friend bool operator>(wchar_t a, const Char& b)
{ return a > b.value(); }
friend bool operator>(const Char& a, char b)
{ return a.value() > b; }
friend bool operator>(char a, const Char& b)
{ return a > b.value(); }
//! @brief Returns $true$ if the numeric value of a is equal or less than the numeric value of b; $false$ otherwise.
//! @return $true$ if the numeric value of a is equal or less than the numeric value of b; $false$ otherwise.
friend bool operator<=(const Char& a, const Char& b)
{ return a.value() <= b.value(); }
friend bool operator<=(const Char& a, wchar_t b)
{ return a.value() <= b; }
friend bool operator<=(wchar_t a, const Char& b)
{ return a <= b.value(); }
friend bool operator<=(const Char& a, char b)
{ return a.value() <= b; }
friend bool operator<=(char a, const Char& b)
{ return a <= b.value(); }
//! @brief Returns $true$ if the numeric value of a is equals or greater than the numeric value of b; $false$ otherwise.
//! @return $true$ if the numeric value of a is equals or greater than the numeric value of b; $false$ otherwise.
friend bool operator>=(const Char& a, const Char& b)
{ return a.value() >= b.value(); }
friend bool operator>=(const Char& a, wchar_t b)
{ return a.value() >= b; }
friend bool operator>=(wchar_t a, const Char& b)
{ return a >= b.value(); }
friend bool operator>=(const Char& a, char b)
{ return a.value() >= b; }
friend bool operator>=(char a, const Char& b)
{ return a >= b.value(); }
private:
value_type _value;
};
struct MBState
{
MBState()
: n(0)
{}
int n;
union {
Char::value_type wchars[4];
char mbytes[16];
} value;
};
CXXTOOLS_API std::ostream& operator<< (std::ostream& out, Char ch);
} // namespace cxxtools
namespace std {
/// @cond INTERNAL
template<>
struct char_traits<cxxtools::Char>
{
typedef cxxtools::Char char_type;
typedef cxxtools::Char::value_type int_type;
typedef std::streamoff off_type;
typedef std::streampos pos_type;
typedef cxxtools::MBState state_type;
inline static void assign(char_type& c1, const char_type& c2);
inline static bool eq(const char_type& c1, const char_type& c2);
inline static bool lt(const char_type& c1, const char_type& c2);
inline static int compare(const char_type* c1, const char_type* c2, size_t n);
inline static size_t length(const char_type* s);
inline static const char_type* find(const char_type* s, size_t n, const char_type& a);
inline static char_type* move(char_type* s1, const char_type* s2, int_type n);
inline static char_type* copy(char_type* s1, const char_type* s2, size_t n);
inline static char_type* assign(char_type* s, size_t n, char_type a);
inline static char_type to_char_type(const int_type& c);
inline static int_type to_int_type(const char_type& c);
inline static bool eq_int_type(const int_type& c1, const int_type& c2);
inline static int_type eof();
inline static int_type not_eof(const int_type& c);
};
inline void char_traits<cxxtools::Char>::assign(char_type& c1, const char_type& c2)
{
c1 = c2;
}
inline bool char_traits<cxxtools::Char>::eq(const char_type& c1, const char_type& c2)
{
return c1 == c2;
}
inline bool char_traits<cxxtools::Char>::lt(const char_type& c1, const char_type& c2)
{
return c1 < c2;
}
inline int char_traits<cxxtools::Char>::compare(const char_type* s1, const char_type* s2, size_t n)
{
while(n-- > 0)
{
if( !eq(*s1, *s2) )
return lt(*s1, *s2) ? -1 : +1;
++s1;
++s2;
}
return 0;
}
inline size_t char_traits<cxxtools::Char>::length(const char_type* s)
{
static const cxxtools::Char term(0);
std::size_t n = 0;
while( !eq(s[n], term) )
++n;
return n;
}
inline const char_traits<cxxtools::Char>::char_type*
char_traits<cxxtools::Char>::find(const char_type* s, size_t n, const char_type& a)
{
while(n-- > 0) {
if (*s == a)
return s;
++s;
}
return 0;
}
inline char_traits<cxxtools::Char>::char_type*
char_traits<cxxtools::Char>::move(char_type* s1, const char_type* s2, int_type n)
{
return (cxxtools::Char*)std::memmove(s1, s2, n * sizeof(cxxtools::Char));
}
inline char_traits<cxxtools::Char>::char_type*
char_traits<cxxtools::Char>::copy(char_type* s1, const char_type* s2, size_t n)
{
return (cxxtools::Char*)std::memcpy(s1, s2, n * sizeof(cxxtools::Char));
}
inline char_traits<cxxtools::Char>::char_type*
char_traits<cxxtools::Char>::assign(char_type* s, size_t n, char_type a)
{
while(n-- > 0) {
*(s++) = a;
}
return s;
}
inline char_traits<cxxtools::Char>::char_type
char_traits<cxxtools::Char>::to_char_type(const int_type& c)
{
return char_type(c);
}
inline char_traits<cxxtools::Char>::int_type
char_traits<cxxtools::Char>::to_int_type(const char_type& c)
{
return c.value();
}
inline bool char_traits<cxxtools::Char>::eq_int_type(const int_type& c1, const int_type& c2)
{
return c1 == c2;
}
inline char_traits<cxxtools::Char>::int_type char_traits<cxxtools::Char>::eof()
{
return static_cast<char_traits<cxxtools::Char>::int_type>( cxxtools::Char::value_type(-1) );
}
inline char_traits<cxxtools::Char>::int_type char_traits<cxxtools::Char>::not_eof(const int_type& c)
{
return eq_int_type(c, eof()) ? 0 : c;
}
} // namespace std
namespace cxxtools {
inline char Char::narrow(char def) const
{
if( _value == std::char_traits<Char>::eof() )
{
return std::char_traits<char>::eof();
}
if( _value <= 0xff )
{
return (char)_value;
}
return def;
}
} // namespace cxxtools
#ifdef CXXTOOLS_WITH_STD_LOCALE
#include <locale>
namespace std {
#if (defined _MSC_VER || defined __QNX__ || defined __xlC__)
/** @brief Ctype localization facet
@ingroup Unicode
*/
template <>
class CXXTOOLS_API ctype< cxxtools::Char > : public ctype_base {
#else
/** @brief Ctype localization facet
@ingroup Unicode
*/
template <>
class CXXTOOLS_API ctype<cxxtools::Char> : public ctype_base, public locale::facet {
#endif
public:
typedef ctype_base::mask mask;
static locale::id id;
virtual locale::id& __get_id (void) const { return id; }
public:
explicit ctype(size_t refs = 0);
virtual ~ctype();
bool is(mask m, cxxtools::Char c) const
{ return this->do_is(m, c); }
const cxxtools::Char* is(const cxxtools::Char *lo, const cxxtools::Char *hi, mask *vec) const
{ return this->do_is(lo, hi, vec); }
const cxxtools::Char* scan_is(mask m, const cxxtools::Char* lo, const cxxtools::Char* hi) const
{ return this->do_scan_is(m, lo, hi); }
const cxxtools::Char* scan_not(mask m, const cxxtools::Char* lo, const cxxtools::Char* hi) const
{ return this->do_scan_not(m, lo, hi); }
cxxtools::Char toupper(cxxtools::Char c) const
{ return this->do_toupper(c); }
const cxxtools::Char* toupper(cxxtools::Char *lo, const cxxtools::Char* hi) const
{ return this->do_toupper(lo, hi); }
cxxtools::Char tolower(cxxtools::Char c) const
{ return this->do_tolower(c); }
const cxxtools::Char* tolower(cxxtools::Char* lo, const cxxtools::Char* hi) const
{ return this->do_tolower(lo, hi); }
cxxtools::Char widen(char c) const
{ return this->do_widen(c); }
const char* widen(const char* lo, const char* hi, cxxtools::Char* to) const
{ return this->do_widen(lo, hi, to); }
char narrow(cxxtools::Char c, char dfault) const
{ return this->do_narrow(c, dfault); }
const cxxtools::Char* narrow(const cxxtools::Char* lo, const cxxtools::Char* hi,
char dfault, char *to) const
{ return this->do_narrow(lo, hi, dfault, to); }
protected:
virtual bool do_is(mask m, cxxtools::Char c) const;
virtual const cxxtools::Char* do_is(const cxxtools::Char* lo, const cxxtools::Char* hi,
mask* vec) const;
virtual const cxxtools::Char* do_scan_is(mask m, const cxxtools::Char* lo,
const cxxtools::Char* hi) const;
virtual const cxxtools::Char* do_scan_not(mask m, const cxxtools::Char* lo,
const cxxtools::Char* hi) const;
virtual cxxtools::Char do_toupper(cxxtools::Char) const;
virtual const cxxtools::Char* do_toupper(cxxtools::Char* lo, const cxxtools::Char* hi) const;
virtual cxxtools::Char do_tolower(cxxtools::Char) const;
virtual const cxxtools::Char* do_tolower(cxxtools::Char* lo, const cxxtools::Char* hi) const;
virtual cxxtools::Char do_widen(char) const;
virtual const char* do_widen(const char* lo, const char* hi,
cxxtools::Char* dest) const;
virtual char do_narrow(cxxtools::Char, char dfault) const;
virtual const cxxtools::Char* do_narrow(const cxxtools::Char* lo, const cxxtools::Char* hi,
char dfault, char* dest) const;
};
} // namespace std
#else
namespace std {
class ctype_base
{
public:
enum {
alpha = 1 << 5,
cntrl = 1 << 2,
digit = 1 << 6,
lower = 1 << 4,
print = 1 << 1,
punct = 1 << 7,
space = 1 << 0,
upper = 1 << 3,
xdigit = 1 << 8,
alnum = alpha | digit,
graph = alnum | punct
};
typedef unsigned short mask;
ctype_base(size_t _refs = 0)
{ }
};
}
#endif
namespace cxxtools {
CXXTOOLS_API std::ctype_base::mask ctypeMask(const Char& ch);
inline int isalpha(const Char& ch)
{
return ctypeMask(ch) & std::ctype_base::alpha;
}
inline int isalnum(const Char& ch)
{
return ctypeMask(ch) & std::ctype_base::alnum;
}
inline int ispunct(const Char& ch)
{
return ctypeMask(ch) & std::ctype_base::punct;
}
inline int iscntrl(const Char& ch)
{
return ctypeMask(ch) & std::ctype_base::cntrl;
}
inline int isdigit(const Char& ch)
{
return ctypeMask(ch) & std::ctype_base::digit;
}
inline int isxdigit(const Char& ch)
{
return ctypeMask(ch) & std::ctype_base::xdigit;
}
inline int isgraph(const Char& ch)
{
return ctypeMask(ch) & std::ctype_base::graph;
}
inline int islower(const Char& ch)
{
return ctypeMask(ch) & std::ctype_base::lower;
}
inline int isupper(const Char& ch)
{
return ctypeMask(ch) & std::ctype_base::upper;
}
inline int isprint(const Char& ch)
{
return ctypeMask(ch) & std::ctype_base::print;
}
inline int isspace(const Char& ch)
{
return ctypeMask(ch) & std::ctype_base::space;
}
CXXTOOLS_API Char tolower(const Char& ch);
CXXTOOLS_API Char toupper(const Char& ch);
} // namespace cxxtools
#ifdef CXXTOOLS_WITH_STD_LOCALE
#include <cxxtools/facets.h>
#endif
#endif
|