#$@%#$%!

Ngiler SH3LL 360
: / opt / alt / libicu / usr / include / unicode /

Information Server
MySQL : OFF Perl : OFF CURL : ON WGET : OFF PKEXEC : OFF

Directive	Local Value
IP Address	162.0.209.101
System	Linux premium169.web-hosting.com 4.18.0-553.50.1.lve.el8.x86_64 #1 SMP Thu Apr 17 19:10:24 UTC 2025 x86_64
User	luxeelil
PHP Version	8.0.30
Software	LiteSpeed
Doc root	Writable

Edit File : stringpiece.h \| Size : 6.46 KB
// © 2016 and later: Unicode, Inc. and others. // License & terms of use: http://www.unicode.org/copyright.html // Copyright (C) 2009-2013, International Business Machines // Corporation and others. All Rights Reserved. // // Copyright 2001 and onwards Google Inc. // Author: Sanjay Ghemawat // This code is a contribution of Google code, and the style used here is // a compromise between the original Google code and the ICU coding guidelines. // For example, data types are ICU-ified (size_t,int->int32_t), // and API comments doxygen-ified, but function names and behavior are // as in the original, if possible. // Assertion-style error handling, not available in ICU, was changed to // parameter "pinning" similar to UnicodeString. // // In addition, this is only a partial port of the original Google code, // limited to what was needed so far. The (nearly) complete original code // is in the ICU svn repository at icuhtml/trunk/design/strings/contrib // (see ICU ticket 6765, r25517). #ifndef __STRINGPIECE_H__ #define __STRINGPIECE_H__ /** * \file * \brief C++ API: StringPiece: Read-only byte string wrapper class. / #include "unicode/utypes.h" #include "unicode/uobject.h" #include "unicode/std_string.h" // Arghh! I wish C++ literals were "string". U_NAMESPACE_BEGIN /* * A string-like object that points to a sized piece of memory. * * We provide non-explicit singleton constructors so users can pass * in a "const char" or a "string" wherever a "StringPiece" is expected. * * Functions or methods may use StringPiece parameters to accept either a * "const char" or a "string" value that will be implicitly converted to a StringPiece. * * Systematic usage of StringPiece is encouraged as it will reduce unnecessary * conversions from "const char" to "string" and back again. * @stable ICU 4.2 / class U_COMMON_API StringPiece : public UMemory { private: const char ptr_; int32_t length_; public: /** * Default constructor, creates an empty StringPiece. * @stable ICU 4.2 / StringPiece() : ptr_(NULL), length_(0) { } /* * Constructs from a NUL-terminated const char * pointer. * @param str a NUL-terminated const char * pointer * @stable ICU 4.2 / StringPiece(const char str); /** * Constructs from a std::string. * @stable ICU 4.2 / StringPiece(const std::string& str) : ptr_(str.data()), length_(static_cast<int32_t>(str.size())) { } /* * Constructs from a const char * pointer and a specified length. * @param offset a const char * pointer (need not be terminated) * @param len the length of the string; must be non-negative * @stable ICU 4.2 / StringPiece(const char offset, int32_t len) : ptr_(offset), length_(len) { } /** * Substring of another StringPiece. * @param x the other StringPiece * @param pos start position in x; must be non-negative and <= x.length(). * @stable ICU 4.2 / StringPiece(const StringPiece& x, int32_t pos); /* * Substring of another StringPiece. * @param x the other StringPiece * @param pos start position in x; must be non-negative and <= x.length(). * @param len length of the substring; * must be non-negative and will be pinned to at most x.length() - pos. * @stable ICU 4.2 / StringPiece(const StringPiece& x, int32_t pos, int32_t len); /* * Returns the string pointer. May be NULL if it is empty. * * data() may return a pointer to a buffer with embedded NULs, and the * returned buffer may or may not be null terminated. Therefore it is * typically a mistake to pass data() to a routine that expects a NUL * terminated string. * @return the string pointer * @stable ICU 4.2 / const char data() const { return ptr_; } /** * Returns the string length. Same as length(). * @return the string length * @stable ICU 4.2 / int32_t size() const { return length_; } /* * Returns the string length. Same as size(). * @return the string length * @stable ICU 4.2 / int32_t length() const { return length_; } /* * Returns whether the string is empty. * @return TRUE if the string is empty * @stable ICU 4.2 / UBool empty() const { return length_ == 0; } /* * Sets to an empty string. * @stable ICU 4.2 / void clear() { ptr_ = NULL; length_ = 0; } /* * Reset the stringpiece to refer to new data. * @param xdata pointer the new string data. Need not be nul terminated. * @param len the length of the new data * @stable ICU 4.8 / void set(const char xdata, int32_t len) { ptr_ = xdata; length_ = len; } /** * Reset the stringpiece to refer to new data. * @param str a pointer to a NUL-terminated string. * @stable ICU 4.8 / void set(const char str); /** * Removes the first n string units. * @param n prefix length, must be non-negative and <=length() * @stable ICU 4.2 / void remove_prefix(int32_t n) { if (n >= 0) { if (n > length_) { n = length_; } ptr_ += n; length_ -= n; } } /* * Removes the last n string units. * @param n suffix length, must be non-negative and <=length() * @stable ICU 4.2 / void remove_suffix(int32_t n) { if (n >= 0) { if (n <= length_) { length_ -= n; } else { length_ = 0; } } } /* * Maximum integer, used as a default value for substring methods. * @stable ICU 4.2 / static const int32_t npos; // = 0x7fffffff; /* * Returns a substring of this StringPiece. * @param pos start position; must be non-negative and <= length(). * @param len length of the substring; * must be non-negative and will be pinned to at most length() - pos. * @return the substring StringPiece * @stable ICU 4.2 / StringPiece substr(int32_t pos, int32_t len = npos) const { return StringPiece(this, pos, len); } }; /** * Global operator == for StringPiece * @param x The first StringPiece to compare. * @param y The second StringPiece to compare. * @return TRUE if the string data is equal * @stable ICU 4.8 / U_EXPORT UBool U_EXPORT2 operator==(const StringPiece& x, const StringPiece& y); /* * Global operator != for StringPiece * @param x The first StringPiece to compare. * @param y The second StringPiece to compare. * @return TRUE if the string data is not equal * @stable ICU 4.8 */ inline UBool operator!=(const StringPiece& x, const StringPiece& y) { return !(x == y); } U_NAMESPACE_END #endif // __STRINGPIECE_H__ Back

Edit File : stringpiece.h | Size : 6.46 KB

// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
// Copyright (C) 2009-2013, International Business Machines
// Corporation and others. All Rights Reserved.
//
// Copyright 2001 and onwards Google Inc.
// Author: Sanjay Ghemawat

// This code is a contribution of Google code, and the style used here is
// a compromise between the original Google code and the ICU coding guidelines.
// For example, data types are ICU-ified (size_t,int->int32_t),
// and API comments doxygen-ified, but function names and behavior are
// as in the original, if possible.
// Assertion-style error handling, not available in ICU, was changed to
// parameter "pinning" similar to UnicodeString.
//
// In addition, this is only a partial port of the original Google code,
// limited to what was needed so far. The (nearly) complete original code
// is in the ICU svn repository at icuhtml/trunk/design/strings/contrib
// (see ICU ticket 6765, r25517).

#ifndef __STRINGPIECE_H__
#define __STRINGPIECE_H__

/**
 * \file 
 * \brief C++ API: StringPiece: Read-only byte string wrapper class.
 */

#include "unicode/utypes.h"
#include "unicode/uobject.h"
#include "unicode/std_string.h"

// Arghh!  I wish C++ literals were "string".

U_NAMESPACE_BEGIN

/**
 * A string-like object that points to a sized piece of memory.
 *
 * We provide non-explicit singleton constructors so users can pass
 * in a "const char*" or a "string" wherever a "StringPiece" is
 * expected.
 *
 * Functions or methods may use StringPiece parameters to accept either a
 * "const char*" or a "string" value that will be implicitly converted to a
 * StringPiece.
 *
 * Systematic usage of StringPiece is encouraged as it will reduce unnecessary
 * conversions from "const char*" to "string" and back again.
 *
 * @stable ICU 4.2
 */
class U_COMMON_API StringPiece : public UMemory {
 private:
  const char*   ptr_;
  int32_t       length_;

public:
  /**
   * Default constructor, creates an empty StringPiece.
   * @stable ICU 4.2
   */
  StringPiece() : ptr_(NULL), length_(0) { }
  /**
   * Constructs from a NUL-terminated const char * pointer.
   * @param str a NUL-terminated const char * pointer
   * @stable ICU 4.2
   */
  StringPiece(const char* str);
  /**
   * Constructs from a std::string.
   * @stable ICU 4.2
   */
  StringPiece(const std::string& str)
    : ptr_(str.data()), length_(static_cast<int32_t>(str.size())) { }
  /**
   * Constructs from a const char * pointer and a specified length.
   * @param offset a const char * pointer (need not be terminated)
   * @param len the length of the string; must be non-negative
   * @stable ICU 4.2
   */
  StringPiece(const char* offset, int32_t len) : ptr_(offset), length_(len) { }
  /**
   * Substring of another StringPiece.
   * @param x the other StringPiece
   * @param pos start position in x; must be non-negative and <= x.length().
   * @stable ICU 4.2
   */
  StringPiece(const StringPiece& x, int32_t pos);
  /**
   * Substring of another StringPiece.
   * @param x the other StringPiece
   * @param pos start position in x; must be non-negative and <= x.length().
   * @param len length of the substring;
   *            must be non-negative and will be pinned to at most x.length() - pos.
   * @stable ICU 4.2
   */
  StringPiece(const StringPiece& x, int32_t pos, int32_t len);

/**
   * Returns the string pointer. May be NULL if it is empty.
   *
   * data() may return a pointer to a buffer with embedded NULs, and the
   * returned buffer may or may not be null terminated.  Therefore it is
   * typically a mistake to pass data() to a routine that expects a NUL
   * terminated string.
   * @return the string pointer
   * @stable ICU 4.2
   */
  const char* data() const { return ptr_; }
  /**
   * Returns the string length. Same as length().
   * @return the string length
   * @stable ICU 4.2
   */
  int32_t size() const { return length_; }
  /**
   * Returns the string length. Same as size().
   * @return the string length
   * @stable ICU 4.2
   */
  int32_t length() const { return length_; }
  /**
   * Returns whether the string is empty.
   * @return TRUE if the string is empty
   * @stable ICU 4.2
   */
  UBool empty() const { return length_ == 0; }

/**
   * Sets to an empty string.
   * @stable ICU 4.2
   */
  void clear() { ptr_ = NULL; length_ = 0; }

/**
   * Reset the stringpiece to refer to new data.
   * @param xdata pointer the new string data.  Need not be nul terminated.
   * @param len the length of the new data
   * @stable ICU 4.8
   */
  void set(const char* xdata, int32_t len) { ptr_ = xdata; length_ = len; }

/**
   * Reset the stringpiece to refer to new data.
   * @param str a pointer to a NUL-terminated string. 
   * @stable ICU 4.8
   */
  void set(const char* str);

/**
   * Removes the first n string units.
   * @param n prefix length, must be non-negative and <=length()
   * @stable ICU 4.2
   */
  void remove_prefix(int32_t n) {
    if (n >= 0) {
      if (n > length_) {
        n = length_;
      }
      ptr_ += n;
      length_ -= n;
    }
  }

/**
   * Removes the last n string units.
   * @param n suffix length, must be non-negative and <=length()
   * @stable ICU 4.2
   */
  void remove_suffix(int32_t n) {
    if (n >= 0) {
      if (n <= length_) {
        length_ -= n;
      } else {
        length_ = 0;
      }
    }
  }

/**
   * Maximum integer, used as a default value for substring methods.
   * @stable ICU 4.2
   */
  static const int32_t npos; // = 0x7fffffff;

/**
   * Returns a substring of this StringPiece.
   * @param pos start position; must be non-negative and <= length().
   * @param len length of the substring;
   *            must be non-negative and will be pinned to at most length() - pos.
   * @return the substring StringPiece
   * @stable ICU 4.2
   */
  StringPiece substr(int32_t pos, int32_t len = npos) const {
    return StringPiece(*this, pos, len);
  }
};

/**
 * Global operator == for StringPiece
 * @param x The first StringPiece to compare.
 * @param y The second StringPiece to compare.
 * @return TRUE if the string data is equal
 * @stable ICU 4.8
 */
U_EXPORT UBool U_EXPORT2 
operator==(const StringPiece& x, const StringPiece& y);

/**
 * Global operator != for StringPiece
 * @param x The first StringPiece to compare.
 * @param y The second StringPiece to compare.
 * @return TRUE if the string data is not equal
 * @stable ICU 4.8
 */
inline UBool operator!=(const StringPiece& x, const StringPiece& y) {
  return !(x == y);
}

U_NAMESPACE_END

#endif  // __STRINGPIECE_H__

Back