strfunc.h
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14 
15 #ifndef RAPIDJSON_INTERNAL_STRFUNC_H_
16 #define RAPIDJSON_INTERNAL_STRFUNC_H_
17 
18 #include "../stream.h"
19 #include <cwchar>
20 
22 namespace internal {
23 
25 
30 template <typename Ch>
31 inline SizeType StrLen(const Ch* s) {
32  RAPIDJSON_ASSERT(s != 0);
33  const Ch* p = s;
34  while (*p) ++p;
35  return SizeType(p - s);
36 }
37 
38 template <>
39 inline SizeType StrLen(const char* s) {
40  return SizeType(std::strlen(s));
41 }
42 
43 template <>
44 inline SizeType StrLen(const wchar_t* s) {
45  return SizeType(std::wcslen(s));
46 }
47 
49 template<typename Encoding>
50 bool CountStringCodePoint(const typename Encoding::Ch* s, SizeType length, SizeType* outCount) {
51  RAPIDJSON_ASSERT(s != 0);
52  RAPIDJSON_ASSERT(outCount != 0);
54  const typename Encoding::Ch* end = s + length;
55  SizeType count = 0;
56  while (is.src_ < end) {
57  unsigned codepoint;
58  if (!Encoding::Decode(is, &codepoint))
59  return false;
60  count++;
61  }
62  *outCount = count;
63  return true;
64 }
65 
66 } // namespace internal
68 
69 #endif // RAPIDJSON_INTERNAL_STRFUNC_H_
RAPIDJSON_NAMESPACE_BEGIN typedef unsigned SizeType
Size type (for string lengths, array sizes, etc.)
Definition: rapidjson.h:389
#define RAPIDJSON_ASSERT(x)
Assertion.
Definition: rapidjson.h:411
Read-only string stream.
Definition: fwd.h:47
#define RAPIDJSON_NAMESPACE_END
provide custom rapidjson namespace (closing expression)
Definition: rapidjson.h:124
const Ch * src_
Current read position.
Definition: stream.h:124
#define RAPIDJSON_NAMESPACE_BEGIN
provide custom rapidjson namespace (opening expression)
Definition: rapidjson.h:121
bool CountStringCodePoint(const typename Encoding::Ch *s, SizeType length, SizeType *outCount)
Returns number of code points in a encoded string.
Definition: strfunc.h:50
SizeType StrLen(const Ch *s)
Custom strlen() which works on different character types.
Definition: strfunc.h:31


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autogenerated on Thu Jul 18 2019 03:59:09