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/*=========================================================================
Copyright (c) Kitware, Inc.
All rights reserved.
See Copyright.txt or http://www.kitware.com/VolViewCopyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include "vtkObject.h"
#include <vtkstd/string>
#include <vtkstd/vector>
#include <vtksys/SystemTools.hxx>
#include <vtksys/RegularExpression.hxx>
#include <vtksys/ios/fstream>
#include <vtksys/ios/sstream>
class Output
{
public:
Output()
{
this->MaxLen = 16000;
this->CurrentPosition = 0;
}
~Output()
{
}
Output(const Output&){}
void operator=(const Output&){}
vtksys_ios::ostringstream Stream;
int MaxLen;
long CurrentPosition;
int Count;
vtkstd::string Prefix;
vtkstd::string Suffix;
void PrintHeader(const char* title, const char* file)
{
this->Stream << endl
<< "// From file " << file << endl
<< "static const char* " << this->Prefix.c_str() << title << this->Suffix.c_str() << this->Count
<< " =" << endl;
this->CurrentPosition = this->Stream.tellp();
}
void CheckSplit(const char* title, const char* file, int force=0)
{
if ( (static_cast<long>(this->Stream.tellp()) - this->CurrentPosition) > this->MaxLen ||
force )
{
this->Count ++;
this->Stream << ";" << endl;
this->PrintHeader(title, file);
}
}
int ProcessFile(const char* file, const char* title)
{
vtksys_ios::ifstream ifs(file);
if ( !ifs )
{
cout << "Canot open file: " << file << endl;
return 0;
}
int ch;
int in_ifdef = 0;
this->Count = 0;
this->PrintHeader(title, file);
this->Stream << "\"";
vtkstd::string line;
vtkstd::string::size_type cc;
vtksys::RegularExpression reIfDef("^[ \r\n\t]*#[ \r\n\t]*if");
vtksys::RegularExpression reElse("^[ \r\n\t]*#[ \r\n\t]*el(se|if)");
vtksys::RegularExpression reEndif("^[ \r\n\t]*#[ \r\n\t]*endif");
int res = 0;
while ( vtksys::SystemTools::GetLineFromStream(ifs, line) )
{
res ++;
int regex = 0;
int ifdef_line = 0;
if ( reIfDef.find(line) )
{
in_ifdef ++;
regex = 1;
ifdef_line = 1;
}
else if ( reElse.find(line) )
{
regex = 1;
}
else if ( reEndif.find(line) )
{
in_ifdef --;
regex = 1;
}
if ( regex )
{
this->Stream << "\\n\"" << endl;
if ( ifdef_line )
{
this->CheckSplit(title, file, 1);
}
this->Stream << line.c_str() << endl;
if ( !ifdef_line )
{
this->CheckSplit(title, file);
}
this->Stream << "\"";
}
else
{
for ( cc = 0; cc < line.size(); cc ++ )
{
ch = line[cc];
if ( ch == '\\' )
{
this->Stream << "\\\\";
}
else if ( ch == '\"' )
{
this->Stream << "\\\"";
}
else
{
this->Stream << (unsigned char)ch;
}
}
this->Stream << "\\n\"" << endl;
if ( !in_ifdef )
{
this->CheckSplit(title, file);
}
this->Stream << "\"";
}
}
this->Stream << "\\n\";" << endl;
if ( !res )
{
return 0;
}
return this->Count+1;
}
};
int main(int argc, char* argv[])
{
if ( argc < 4 )
{
cerr << "Usage: " << argv[0] << " <output-file> <prefix> <suffix> <getmethod> <modules>..."
<< endl;
return 1;
}
Output ot;
ot.Prefix = argv[2];
ot.Suffix = argv[3];
ot.Stream << "// Loadable modules" << endl
<< "//" << endl
<< "// Generated by " << argv[0] << endl
<< "//" << endl
<< "#ifndef __" << ot.Prefix.c_str() << "_h" << endl
<< "#define __" << ot.Prefix.c_str() << "_h" << endl
<< endl
<< "#include <string.h>" << endl
<< endl;
vtkstd::string output = argv[1];
int cc;
for ( cc = 5; cc < argc; cc ++ )
{
vtkstd::string fname = argv[cc];
vtkstd::string moduleName;
vtksys::RegularExpression mnrex(".*/(.*).(xml|pvsm|py)$");
if ( mnrex.find(fname) )
{
moduleName = mnrex.match(1);
}
else
{
cerr << "Cannot extract module name from the file: " << argv[cc] << endl;
return 1;
}
cout << "-- Generate module: " << moduleName << endl;
int num = 0;
if ( (num = ot.ProcessFile(fname.c_str(), moduleName.c_str())) == 0 )
{
cout << "Problem generating header file from XML file: " << fname.c_str() << endl;
return 1;
}
int kk;
vtksys_ios::ostringstream createstring;
vtksys_ios::ostringstream lenstr;
for ( kk = 0; kk < num; kk ++ )
{
lenstr << endl
<< " + strlen(" << ot.Prefix.c_str()
<< moduleName.c_str() << ot.Suffix.c_str() << kk << ")";
createstring << " strcat(res, " << ot.Prefix.c_str() << moduleName.c_str() << ot.Suffix.c_str()
<< kk << ");" << endl;
}
ot.Stream
<< "// Get single string" << endl
<< "char* " << ot.Prefix.c_str() << moduleName.c_str() << argv[4] << "()" << endl
<< "{" << endl
<< " size_t len = ( 0"
<< lenstr.str()
<< " );" << endl
<< " char* res = new char[ len + 1];" << endl
<< " res[0] = 0;" << endl
<< createstring.str()
<< " return res;" << endl
<< "}" << endl << endl;
}
ot.Stream
<< endl << endl
<< "#endif" << endl;
FILE* fp = fopen(output.c_str(), "w");
if ( !fp )
{
cout << "Cannot open output file: " << output.c_str() << endl;
return 1;
}
fprintf(fp, "%s", ot.Stream.str().c_str());
fclose(fp);
return 0;
}
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