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//
// 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) 2018 NVIDIA Corporation. All rights reserved.
#ifndef GET_ARGS_H
#define GET_ARGS_H
#define MAX_ARGS 4096
#define MAX_ARG_STRING 16384
class GetArgs
{
public:
const char **getArgs(const char *str,uint32_t &argc)
{
argc = 0;
str = skipSpaces(str); // skip any leading spaces
char *dest = mArgString;
char *stop = &mArgString[MAX_ARG_STRING-1];
while ( str && *str && dest < stop ) // if we have a valid string then we have at least one argument..
{
if ( *str == 34 ) // if it is a quoted string...
{
str++; // Skip the opening quote
if ( *str == 34 ) // double quotes I guess we treat as an empty string
{
mArgv[argc] = "";
argc++;
}
else
{
mArgv[argc] = dest; // store the beginning of the argument
argc++;
while ( *str && *str != 34 && dest < stop )
{
*dest++ = *str++;
}
*dest = 0; // null terminate the quoted argument.
dest++;
}
if ( *str == 34 ) // skip closing quote
{
str++;
}
str = skipSpaces(str);
}
else
{
mArgv[argc] = dest;
argc++;
while ( *str && !isWhiteSpace(*str) && dest < stop )
{
*dest++ = *str++;
}
*dest = 0;
dest++;
str = skipSpaces(str);
}
}
return mArgv;
}
private:
PX_INLINE bool isWhiteSpace(char c) const
{
if ( c == 32 || c == 9 ) return true;
return false;
}
PX_INLINE const char *skipSpaces(const char *str) const
{
if ( str )
{
while ( *str == 32 || *str == 9 )
{
str++;
}
}
return str;
}
const char *mArgv[MAX_ARGS];
char mArgString[MAX_ARG_STRING];
};
#endif
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