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Added strnstr function. Included stdint.h from bx.h

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bkaradzic
2012-12-16 15:46:24 -08:00
parent 5dc22d90e1
commit e144480d3f
4 changed files with 58 additions and 23 deletions
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77
include/bx/string.h
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@@ -23,40 +23,77 @@ namespace bx
#endif // BX_COMPILER_
}
/// Find substring in string. Limit search to _size.
inline const char* strnstr(const char* _str, const char* _find, size_t _size)
{
char first = *_find;
if ('\0' == first)
{
return _str;
}
const char* cmp = _find + 1;
size_t len = strlen(cmp);
do
{
for (char match = *_str++; match != first && 0 < _size; match = *_str++, --_size)
{
if ('\0' == match)
{
return NULL;
}
}
if (0 == _size)
{
return NULL;
}
} while (0 != strncmp(_str, cmp, len) );
return --_str;
}
/// Find new line. Returns pointer after new line terminator.
inline const char* strnl(const char* _str)
{
const char* eol = strstr(_str, "\n\r");
if (NULL != eol)
for (; '\0' != *_str; _str += strnlen(_str, 1024) )
{
return eol + 2;
const char* eol = strnstr(_str, "\n\r", 1024);
if (NULL != eol)
{
return eol + 2;
}
eol = strnstr(_str, "\n", 1024);
if (NULL != eol)
{
return eol + 1;
}
}
eol = strstr(_str, "\n");
if (NULL != eol)
{
return eol + 1;
}
return eol + strlen(_str);
return _str;
}
/// Find end of line. Retuns pointer to new line terminator.
inline const char* streol(const char* _str)
{
const char* eol = strstr(_str, "\n\r");
if (NULL != eol)
for (; '\0' != *_str; _str += strnlen(_str, 1024) )
{
return eol;
const char* eol = strnstr(_str, "\n\r", 1024);
if (NULL != eol)
{
return eol;
}
eol = strnstr(_str, "\n", 1024);
if (NULL != eol)
{
return eol;
}
}
eol = strstr(_str, "\n");
if (NULL != eol)
{
return eol;
}
return eol + strlen(_str);
return _str;
}
/// Skip whitespace.