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/*
* Copyright (c) 2008-2017, NVIDIA CORPORATION. All rights reserved.
*
* NVIDIA CORPORATION and its licensors retain all intellectual property
* and proprietary rights in and to this software, related documentation
* and any modifications thereto. Any use, reproduction, disclosure or
* distribution of this software and related documentation without an express
* license agreement from NVIDIA CORPORATION is strictly prohibited.
*/
#ifndef APEX_STRING_H
#define APEX_STRING_H
#include "ApexUsingNamespace.h"
#include "PsArray.h"
#include "PsString.h"
#include "PsArray.h"
#include "PsUserAllocated.h"
#include <PxFileBuf.h>
namespace nvidia
{
namespace apex
{
/**
* ApexSimpleString - a simple string class
*/
class ApexSimpleString : public physx::Array<char>, public UserAllocated
{
public:
ApexSimpleString() : physx::Array<char>(), length(0)
{
}
explicit ApexSimpleString(const char* cStr) : physx::Array<char>(), length(0)
{
if (cStr)
{
length = (uint32_t)strlen(cStr);
if (length > 0)
{
resize(length + 1);
nvidia::strlcpy(begin(), size(), cStr);
}
}
}
ApexSimpleString(const ApexSimpleString& other) : physx::Array<char>()
{
length = other.length;
if (length > 0)
{
resize(length + 1);
nvidia::strlcpy(begin(), capacity(), other.c_str());
}
else
{
resize(0);
}
}
ApexSimpleString(uint32_t number, uint32_t fixedLength = 0) : length(fixedLength)
{
if (fixedLength)
{
char format[5]; format[0] = '%'; format[1] = '0';
char buffer[10];
if (fixedLength > 9)
{
PX_ASSERT(fixedLength);
fixedLength = 9;
}
physx::shdfnd::snprintf(format + 2, 2, "%d", fixedLength);
format[3] = 'd'; format[4] = '\0';
physx::shdfnd::snprintf(buffer, 10, format, number);
resize(length + 1);
nvidia::strlcpy(begin(), size(), buffer);
}
else
{
char buffer[10];
physx::shdfnd::snprintf(buffer, 10, "%d", number);
length = 1;
while (number >= 10)
{
number /= 10;
length++;
}
resize(length + 1);
nvidia::strlcpy(begin(), size(), buffer);
}
}
ApexSimpleString& operator = (const ApexSimpleString& other)
{
length = other.length;
if (length > 0)
{
resize(length + 1);
nvidia::strlcpy(begin(), capacity(), other.c_str());
}
else
{
resize(0);
}
return *this;
}
ApexSimpleString& operator = (const char* cStr)
{
if (!cStr)
{
erase();
}
else
{
length = (uint32_t)strlen(cStr);
if (length > 0)
{
resize(length + 1);
nvidia::strlcpy(begin(), capacity(), cStr);
}
else
{
resize(0);
}
}
return *this;
}
void truncate(uint32_t newLength)
{
if (newLength < length)
{
length = newLength;
begin()[length] = '\0';
}
}
void serialize(physx::PxFileBuf& stream) const
{
stream.storeDword(length);
stream.write(begin(), length);
}
void deserialize(physx::PxFileBuf& stream)
{
uint32_t len = stream.readDword();
if (len > 0)
{
resize(len + 1);
stream.read(begin(), len);
begin()[len] = '\0';
length = len;
}
else
{
erase();
}
}
uint32_t len() const
{
return length;
}
/* PH: Cast operator not allowed by coding guidelines, and evil in general anyways
operator const char* () const
{
return capacity() ? begin() : "";
}
*/
const char* c_str() const
{
return capacity() > 0 ? begin() : "";
}
bool operator==(const ApexSimpleString& s) const
{
return nvidia::strcmp(c_str(), s.c_str()) == 0;
}
bool operator!=(const ApexSimpleString& s) const
{
return ! this->operator==(s);
}
bool operator==(const char* s) const
{
return nvidia::strcmp(c_str(), s) == 0;
}
bool operator!=(const char* s) const
{
return ! this->operator==(s);
}
bool operator < (const ApexSimpleString& s) const
{
return nvidia::strcmp(c_str(), s.c_str()) < 0;
}
ApexSimpleString& operator += (const ApexSimpleString& s)
{
expandTo(length + s.length);
nvidia::strlcpy(begin() + length, capacity() - length, s.c_str());
length += s.length;
return *this;
}
ApexSimpleString& operator += (char c)
{
expandTo(length + 1);
begin()[length++] = c;
begin()[length] = '\0';
return *this;
}
ApexSimpleString operator + (const ApexSimpleString& s)
{
ApexSimpleString sum = *this;
sum += s;
return sum;
}
ApexSimpleString& clear()
{
if (capacity())
{
begin()[0] = '\0';
}
length = 0;
return *this;
}
ApexSimpleString& erase()
{
resize(0);
return clear();
}
static PX_INLINE void ftoa(float f, ApexSimpleString& s)
{
char buf[20];
physx::shdfnd::snprintf(buf, sizeof(buf), "%g", f);
s = buf;
}
static PX_INLINE void itoa(uint32_t i, ApexSimpleString& s)
{
char buf[20];
physx::shdfnd::snprintf(buf, sizeof(buf), "%i", i);
s = buf;
}
private:
void expandTo(uint32_t stringCapacity)
{
if (stringCapacity + 1 > capacity())
{
resize(2 * stringCapacity + 1);
}
}
uint32_t length;
};
PX_INLINE ApexSimpleString operator + (const ApexSimpleString& s1, const ApexSimpleString& s2)
{
ApexSimpleString result = s1;
result += s2;
return result;
}
} // namespace apex
} // namespace nvidia
#endif // APEX_STRING_H
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