Space-Project/dependencies/physx-4.1/source/filebuf/include/PsAsciiConversion.inl
2021-01-16 17:11:39 +01:00

567 lines
14 KiB
C++

//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of NVIDIA CORPORATION nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Copyright (c) 2008-2019 NVIDIA Corporation. All rights reserved.
/*!
\file
\brief NvAsciiConversion namespace contains string/value helper functions
*/
#include <ctype.h>
PX_INLINE bool isWhiteSpace(char c)
{
bool ret = false;
if ( c == 32 || c == 9 || c == 13 || c == 10 || c == ',' ) ret = true;
return ret;
}
PX_INLINE const char * skipNonWhiteSpace(const char *scan)
{
while ( !isWhiteSpace(*scan) && *scan) scan++;
if ( *scan == 0 ) scan = NULL;
return scan;
}
PX_INLINE const char * skipWhiteSpace(const char *scan)
{
while ( isWhiteSpace(*scan) && *scan ) scan++;
if ( *scan == 0 ) scan = NULL;
return scan;
}
static double strtod_fast(const char * pString)
{
//---
// Find the start of the string
const char* pNumberStart = skipWhiteSpace(pString);
//---
// Find the end of the string
const char* pNumberEnd = pNumberStart;
// skip optional sign
if( *pNumberEnd == '-' || *pNumberEnd == '+' )
++pNumberEnd;
// skip optional digits
while( isdigit(*pNumberEnd) )
++pNumberEnd;
// skip optional decimal and digits
if( *pNumberEnd == '.' )
{
++pNumberEnd;
while( isdigit(*pNumberEnd) )
++pNumberEnd;
}
// skip optional exponent
if( *pNumberEnd == 'd'
|| *pNumberEnd == 'D'
|| *pNumberEnd == 'e'
|| *pNumberEnd == 'E' )
{
++pNumberEnd;
if( *pNumberEnd == '-' || *pNumberEnd == '+' )
++pNumberEnd;
while( isdigit(*pNumberEnd) )
++pNumberEnd;
}
//---
// Process the string
const uint32_t numberLen = (const uint32_t)(pNumberEnd-pNumberStart);
char buffer[32];
if( numberLen+1 < sizeof(buffer)/sizeof(buffer[0]) )
{
// copy into buffer and terminate with NUL before calling the
// standard function
memcpy( buffer, pNumberStart, numberLen*sizeof(buffer[0]) );
buffer[numberLen] = '\0';
const double result = strtod( buffer, NULL );
return result;
}
else
{
// buffer was too small so just call the standard function on the
// source input to get a proper result
return strtod( pString, NULL );
}
}
static float strtof_fast(const char* pString)
{
return (float)strtod_fast(pString);
}
//////////////////////////
// str to value functions
//////////////////////////
PX_INLINE bool strToBool(const char *str, const char **endptr)
{
bool ret = false;
const char *begin = skipWhiteSpace(str);
const char *end = skipNonWhiteSpace(begin);
if( !end )
end = begin + strlen(str);
size_t len = (size_t)(end - begin);
if ( physx::shdfnd::strnicmp(begin,"true", len) == 0 || physx::shdfnd::strnicmp(begin,"1", len) == 0 )
ret = true;
if( endptr )
*endptr = skipNonWhiteSpace(begin);
return ret;
}
PX_INLINE int8_t strToI8(const char *str, const char **endptr)
{
int8_t ret;
const char *begin = skipWhiteSpace(str);
const char *end = skipNonWhiteSpace(begin);
if( !end )
end = begin + strlen(str);
if( strncmp(begin, "INT8_MIN", (size_t)(end-begin)) == 0)
ret = INT8_MIN;
else if( strncmp(begin, "INT8_MAX", (size_t)(end-begin)) == 0)
ret = INT8_MAX;
else if( strncmp(begin, "PX_MIN_I8", (size_t)(end-begin)) == 0)
ret = INT8_MIN;
else if( strncmp(begin, "PX_MAX_I8", (size_t)(end-begin)) == 0)
ret = INT8_MAX;
else
ret = (int8_t)strtol(begin, 0, 0); //FIXME
if( endptr )
*endptr = skipNonWhiteSpace(begin);
return ret;
}
PX_INLINE int16_t strToI16(const char *str, const char **endptr)
{
int16_t ret;
const char *begin = skipWhiteSpace(str);
const char *end = skipNonWhiteSpace(begin);
if( !end )
end = begin + strlen(str);
if( strncmp(begin, "INT16_MIN", (size_t)(end-begin)) == 0)
ret = INT16_MIN;
else if( strncmp(begin, "INT16_MAX", (size_t)(end-begin)) == 0)
ret = INT16_MAX;
else if( strncmp(begin, "PX_MIN_I16", (size_t)(end-begin)) == 0)
ret = INT16_MIN;
else if( strncmp(begin, "PX_MAX_I16", (size_t)(end-begin)) == 0)
ret = INT16_MAX;
else
ret = (int16_t)strtol(begin, 0, 0); //FIXME
if( endptr )
*endptr = skipNonWhiteSpace(begin);
return ret;
}
PX_INLINE int32_t strToI32(const char *str, const char **endptr)
{
int32_t ret;
const char *begin = skipWhiteSpace(str);
const char *end = skipNonWhiteSpace(begin);
if( !end )
end = begin + strlen(str);
if( strncmp(begin, "INT32_MIN", (size_t)(end-begin)) == 0)
ret = INT32_MIN;
else if( strncmp(begin, "INT32_MAX", (size_t)(end-begin)) == 0)
ret = INT32_MAX;
else if( strncmp(begin, "PX_MIN_I32", (size_t)(end-begin)) == 0)
ret = INT32_MIN;
else if( strncmp(begin, "PX_MAX_I32", (size_t)(end-begin)) == 0)
ret = INT32_MAX;
else
ret = (int32_t)strtol(begin, 0, 0); //FIXME
if( endptr )
*endptr = skipNonWhiteSpace(begin);
return ret;
}
PX_INLINE int64_t strToI64(const char *str, const char **endptr)
{
int64_t ret;
const char *begin = skipWhiteSpace(str);
//FIXME
#ifdef _WIN32 //NV_WINDOWS, NV_XBOX
ret = (int64_t)_strtoi64(begin,0,10);
#else
ret = (int64_t)strtoll(begin,0,10);
#endif
if( endptr )
*endptr = skipNonWhiteSpace(begin);
return ret;
}
PX_INLINE uint8_t strToU8(const char *str, const char **endptr)
{
uint8_t ret;
const char *begin = skipWhiteSpace(str);
ret = (uint8_t)strtoul(begin, 0, 0);
if( endptr )
*endptr = skipNonWhiteSpace(begin);
return ret;
}
PX_INLINE uint16_t strToU16(const char *str, const char **endptr)
{
uint16_t ret;
const char *end;
const char *begin = skipWhiteSpace(str);
end = skipNonWhiteSpace(begin);
if( !end )
end = begin + strlen(str);
if( strncmp(begin, "UINT16_MAX", (size_t)(end-begin)) == 0)
ret = UINT16_MAX;
else if( strncmp(begin, "PX_MAX_U16", (size_t)(end-begin)) == 0)
ret = UINT16_MAX;
else
ret = (uint16_t)strtoul(begin,0,0);
if( endptr )
*endptr = skipNonWhiteSpace(begin);
return ret;
}
PX_INLINE uint32_t strToU32(const char *str, const char **endptr)
{
uint32_t ret;
const char *begin = skipWhiteSpace(str);
const char *end = skipNonWhiteSpace(begin);
if( !end )
end = begin + strlen(str);
if( strncmp(begin, "UINT32_MAX", (size_t)(end-begin)) == 0)
ret = UINT32_MAX;
else if( strncmp(begin, "PX_U32_MAX", (size_t)(end-begin)) == 0)
ret = UINT32_MAX;
else
ret = (uint32_t)strtoul(begin,0,0);
if( endptr )
*endptr = skipNonWhiteSpace(begin);
return ret;
}
PX_INLINE uint64_t strToU64(const char *str, const char **endptr)
{
uint64_t ret;
const char *begin;
begin = skipWhiteSpace(str);
//FIXME
#ifdef _WIN32 //NV_WINDOWS, NV_XBOX
ret = (uint64_t)_strtoui64(begin,0,10);
#else
ret = (uint64_t)strtoull(begin,0,10);
#endif
if( endptr )
*endptr = skipNonWhiteSpace(begin);
return ret;
}
#ifndef DEBUGGING_MISMATCHES
#define DEBUGGING_MISMATCHES 0
#endif
PX_INLINE float strToF32(const char *str, const char **endptr)
{
float ret;
const char *begin = skipWhiteSpace(str);
const char *end = skipNonWhiteSpace(begin);
if( !end )
end = begin + strlen(str);
const uint32_t len = (uint32_t)(end - begin);
const char F32_MIN[] = "NV_MIN_F32";
const char F32_MAX[] = "NV_MAX_F32";
const char PX_F32_MIN[] = "PX_MIN_F32";
const char PX_F32_MAX[] = "PX_MAX_F32";
if( strncmp(begin, PX_F32_MIN, physx::PxMin(len, (uint32_t)(sizeof(PX_F32_MIN) - 1))) == 0)
ret = -PX_MAX_F32;
else if( strncmp(begin, PX_F32_MAX, physx::PxMin(len, (uint32_t)(sizeof(PX_F32_MAX) - 1))) == 0)
ret = PX_MAX_F32;
else if( strncmp(begin, F32_MIN, physx::PxMin(len, (uint32_t)(sizeof(F32_MIN) - 1))) == 0)
ret = -PX_MAX_F32;
else if( strncmp(begin, F32_MAX, physx::PxMin(len, (uint32_t)(sizeof(F32_MAX) - 1))) == 0)
ret = PX_MAX_F32;
else
{
ret = (float)strtof_fast(begin);
}
#if DEBUGGING_MISMATCHES
float testRet = (float)atof(begin);
if( ret != testRet )
{
PX_ASSERT(0 && "Inaccurate float string");
}
#endif
if( endptr )
*endptr = skipNonWhiteSpace(begin);
return ret;
}
PX_INLINE double strToF64(const char *str, const char **endptr)
{
double ret;
const char *begin = skipWhiteSpace(str);
const char *end = skipNonWhiteSpace(begin);
end = skipNonWhiteSpace(begin);
if( !end )
end = begin + strlen(str);
const uint32_t len = (const uint32_t)(end - begin);
const char F64_MIN[] = "PX_MIN_F364";
const char F64_MAX[] = "PX_MAX_F64";
const char PX_F64_MIN[] = "PX_MIN_F64";
const char PX_F64_MAX[] = "PX_MAX_F64";
if( strncmp(begin, F64_MIN, physx::PxMin(len, (uint32_t)(sizeof(F64_MIN) - 1))) == 0)
ret = -PX_MAX_F64;
else if( strncmp(begin, F64_MAX, physx::PxMin(len, (uint32_t)(sizeof(F64_MAX) - 1))) == 0)
ret = PX_MAX_F64;
else if( strncmp(begin, PX_F64_MIN, physx::PxMin(len, (uint32_t)(sizeof(PX_F64_MIN) - 1))) == 0)
ret = -PX_MAX_F64;
else if( strncmp(begin, PX_F64_MAX, physx::PxMin(len, (uint32_t)(sizeof(PX_F64_MAX) - 1))) == 0)
ret = PX_MAX_F64;
else
ret = (double)strtod_fast(begin);
if( endptr )
*endptr = skipNonWhiteSpace(begin);
return ret;
}
PX_INLINE void strToF32s(float *v,uint32_t count,const char *str, const char**endptr)
{
const char *begin = skipWhiteSpace(str);
if ( *begin == '(' ) begin++;
for (uint32_t i=0; i<count && *begin; i++)
{
v[i] = (float)strToF32(begin, &begin);
}
if( endptr )
*endptr = skipNonWhiteSpace(begin);
}
//////////////////////////
// value to str functions
//////////////////////////
PX_INLINE const char * valueToStr( bool val, char *buf, uint32_t n )
{
physx::shdfnd::snprintf(buf, n,"%s",val ? "true" : "false");
return buf;
}
PX_INLINE const char * valueToStr( int8_t val, char *buf, uint32_t n )
{
if( val == INT8_MIN )
physx::shdfnd::snprintf(buf, n,"%s","INT8_MIN" );
else if( val == INT8_MAX )
physx::shdfnd::snprintf(buf, n,"%s","INT8_MAX" );
else
physx::shdfnd::snprintf(buf, n, "%d", val);
return buf;
}
PX_INLINE const char * valueToStr( int16_t val, char *buf, uint32_t n )
{
if( val == INT16_MIN )
physx::shdfnd::snprintf(buf, n,"%s","INT16_MIN" );
else if( val == INT16_MAX )
physx::shdfnd::snprintf(buf, n,"%s","INT16_MAX" );
else
physx::shdfnd::snprintf(buf, n,"%d",val );
return buf;
}
PX_INLINE const char * valueToStr( int32_t val, char *buf, uint32_t n )
{
if( val == INT32_MIN )
physx::shdfnd::snprintf(buf, n,"%s","INT32_MIN" );
else if( val == INT32_MAX )
physx::shdfnd::snprintf(buf, n,"%s","INT32_MAX" );
else
physx::shdfnd::snprintf(buf, n,"%d",val );
return buf;
}
PX_INLINE const char * valueToStr( int64_t val, char *buf, uint32_t n )
{
physx::shdfnd::snprintf(buf, n,"%lld",val );
return buf;
}
PX_INLINE const char * valueToStr( uint8_t val, char *buf, uint32_t n )
{
physx::shdfnd::snprintf(buf, n, "%u", val);
return buf;
}
PX_INLINE const char * valueToStr( uint16_t val, char *buf, uint32_t n )
{
if( val == UINT16_MAX )
physx::shdfnd::snprintf(buf, n,"%s","UINT16_MAX" );
else
physx::shdfnd::snprintf(buf, n,"%u",val );
return buf;
}
PX_INLINE const char * valueToStr( uint32_t val, char *buf, uint32_t n )
{
if( val == UINT32_MAX )
physx::shdfnd::snprintf(buf, n,"%s","UINT32_MAX" );
else
physx::shdfnd::snprintf(buf, n,"%u",val );
return buf;
}
PX_INLINE const char * valueToStr( uint64_t val, char *buf, uint32_t n )
{
physx::shdfnd::snprintf(buf, n,"%llu",val );
return buf;
}
PX_INLINE const char * valueToStr( float val, char *buf, uint32_t n )
{
if( !physx::PxIsFinite(val) )
{
PX_ASSERT( 0 && "invalid floating point" );
physx::shdfnd::snprintf(buf, n,"%s","0" );
}
else if( val == -PX_MAX_F32 )
physx::shdfnd::snprintf(buf, n,"%s","PX_MIN_F32" );
else if( val == PX_MAX_F32 )
physx::shdfnd::snprintf(buf, n,"%s","PX_MAX_F32" );
else if ( val == 1 )
physx::shdfnd::strlcpy(buf, n, "1");
else if ( val == 0 )
physx::shdfnd::strlcpy(buf, n, "0");
else if ( val == - 1 )
physx::shdfnd::strlcpy(buf, n, "-1");
else
{
physx::shdfnd::snprintf(buf,n,"%.9g", (double)val ); // %g expects double
const char *dot = strchr(buf,'.');
const char *e = strchr(buf,'e');
if ( dot && !e )
{
int32_t len = (int32_t)strlen(buf);
char *foo = &buf[len-1];
while ( *foo == '0' ) foo--;
if ( *foo == '.' )
*foo = 0;
else
foo[1] = 0;
}
}
return buf;
}
PX_INLINE const char * valueToStr( double val, char *buf, uint32_t n )
{
if( !physx::PxIsFinite(val) )
{
PX_ASSERT( 0 && "invalid floating point" );
physx::shdfnd::snprintf(buf, n,"%s","0" );
}
else if( val == -PX_MAX_F64 )
physx::shdfnd::snprintf(buf, n,"%s","PX_MIN_F64" );
else if( val == PX_MAX_F64 )
physx::shdfnd::snprintf(buf, n,"%s","PX_MAX_F64" );
else if ( val == 1 )
physx::shdfnd::strlcpy(buf, n, "1");
else if ( val == 0 )
physx::shdfnd::strlcpy(buf, n, "0");
else if ( val == - 1 )
physx::shdfnd::strlcpy(buf, n, "-1");
else
{
physx::shdfnd::snprintf(buf,n,"%.18g", val );
const char *dot = strchr(buf,'.');
const char *e = strchr(buf,'e');
if ( dot && !e )
{
int32_t len = (int32_t)strlen(buf);
char *foo = &buf[len-1];
while ( *foo == '0' ) foo--;
if ( *foo == '.' )
*foo = 0;
else
foo[1] = 0;
}
}
return buf;
}