String.hpp

   1 /* Cycript - Optimizing JavaScript Compiler/Runtime
   2  * Copyright (C) 2009-2015  Jay Freeman (saurik)
   3 */
   4
   5 /* GNU Affero General Public License, Version 3 {{{ */
   6 /*
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU Affero General Public License as published by
   9  * the Free Software Foundation, either version 3 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 Affero General Public License for more details.
  16
  17  * You should have received a copy of the GNU Affero General Public License
  18  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 **/
  20 /* }}} */
  21
  22 #ifndef CYCRIPT_STRING_HPP
  23 #define CYCRIPT_STRING_HPP
  24
  25 #include <iostream>
  26 #include <string>
  27
  28 #include "Pooling.hpp"
  29
  30 struct CYUTF8String {
  31     const char *data;
  32     size_t size;
  33
  34     CYUTF8String() :
  35         data(NULL),
  36         size(0)
  37     {
  38     }
  39
  40     CYUTF8String(const char *data) :
  41         data(data),
  42         size(strlen(data))
  43     {
  44     }
  45
  46     CYUTF8String(const char *data, size_t size) :
  47         data(data),
  48         size(size)
  49     {
  50     }
  51
  52     bool operator ==(const char *value) const {
  53         size_t length(strlen(data));
  54         return length == size && memcmp(value, data, length) == 0;
  55     }
  56
  57     operator std::string() const {
  58         return std::string(data, size);
  59     }
  60 };
  61
  62 static inline std::ostream &operator <<(std::ostream &lhs, const CYUTF8String &rhs) {
  63     lhs.write(rhs.data, rhs.size);
  64     return lhs;
  65 }
  66
  67 struct CYUTF16String {
  68     const uint16_t *data;
  69     size_t size;
  70
  71     CYUTF16String(const uint16_t *data, size_t size) :
  72         data(data),
  73         size(size)
  74     {
  75     }
  76 };
  77
  78 size_t CYGetIndex(const CYUTF8String &value);
  79 bool CYIsKey(CYUTF8String value);
  80
  81 bool CYGetOffset(const char *value, ssize_t &index);
  82
  83 bool CYStartsWith(const CYUTF8String &haystack, const CYUTF8String &needle);
  84
  85 CYUTF8String CYPoolUTF8String(CYPool &pool, CYUTF16String utf16);
  86 CYUTF16String CYPoolUTF16String(CYPool &pool, CYUTF8String utf8);
  87
  88 #endif/*CYCRIPT_STRING_HPP*/