Fixed the translators to use the icecpp C preprocessor.

1 files changed, 193 insertions, 0 deletions

diff --git a/cpp/src/Slice/Preprocessor.cpp b/cpp/src/Slice/Preprocessor.cpp
new file mode 100644
index 00000000000..532ed8be9d6
--- /dev/null
+++ b/cpp/src/Slice/Preprocessor.cpp
@@ -0,0 +1,193 @@
+// **********************************************************************
+//
+// Copyright (c) 2001
+// ZeroC, Inc.
+// Huntsville, AL, USA
+//
+// All Rights Reserved
+//
+// **********************************************************************
+
+#include <Slice/Preprocessor.h>
+
+#include <algorithm>
+#include <fstream>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#ifndef _WIN32
+#   include <sys/wait.h>
+#endif
+
+using namespace std;
+using namespace Slice;
+
+Slice::Preprocessor::Preprocessor(const string& path, const string& fileName, const string& args) :
+    _path(path),
+    _fileName(fileName),
+    _args(args),
+    _cppHandle(0)
+{
+}
+
+Slice::Preprocessor::~Preprocessor()
+{
+    if(_cppHandle)
+    {
+	close();
+    }
+}
+
+string
+Slice::Preprocessor::getBaseName()
+{
+    string base(_fileName);
+    string suffix;
+    string::size_type pos = base.rfind('.');
+    if(pos != string::npos)
+    {
+	base.erase(pos);
+    }
+    return base;
+}
+
+FILE*
+Slice::Preprocessor::preprocess(bool keepComments)
+{
+    if(!checkInputFile())
+    {
+	return 0;
+    }
+
+    string cmd = searchIceCpp();
+
+    if(cmd.empty())
+    {
+	return 0;
+    }
+
+    if(keepComments)
+    {
+	cmd += " -C";
+    }
+    
+    cmd += " " + _args + " " + _fileName;
+
+    //
+    // Open a pipe for reading to redirect icecpp output to _cppHandle.
+    //
+#ifdef _WIN32
+    _cppHandle = _popen(cmd.c_str(), "r");
+#else
+    _cppHandle = popen(cmd.c_str(), "r");
+#endif
+    return _cppHandle;
+}
+
+void
+Slice::Preprocessor::printMakefileDependencies()
+{
+    if(!checkInputFile())
+    {
+	return;
+    }
+
+    string cmd = searchIceCpp();
+    
+    if(cmd.empty())
+    {
+	return;
+    }
+    
+    cmd += " -M " + _args + " " +_fileName;
+
+    //
+    // Open a pipe for writing to redirect icecpp output to the standard output.
+    //
+#ifndef _WIN32
+    FILE* cppHandle = popen(cmd.c_str(), "w");
+    pclose(cppHandle);
+#else
+    FILE* cppHandle = _popen(cmd.c_str(), "w");
+    _pclose(cppHandle);
+#endif
+}
+
+bool
+Slice::Preprocessor::close()
+{
+    assert(_cppHandle);
+
+#ifndef WIN32
+    int status = pclose(_cppHandle);
+    _cppHandle = 0;
+
+    if(WIFEXITED(status) && WEXITSTATUS(status) != 0)
+    {
+	return false;
+    }
+#else
+    int status = _pclose(_cppHandle);
+    _cppHandle = 0;
+
+    if(status != 0)
+    {
+	return false;
+    }
+#endif
+    
+    return true;
+}
+
+bool
+Slice::Preprocessor::checkInputFile()
+{
+    string base(_fileName);
+    string suffix;
+    string::size_type pos = base.rfind('.');
+    if(pos != string::npos)
+    {
+	suffix = base.substr(pos);
+	transform(suffix.begin(), suffix.end(), suffix.begin(), ::tolower);
+    }
+    if(suffix != ".ice")
+    {
+	cerr << _path << ": input files must end with `.ice'" << endl;
+	return false;
+    }
+    
+    ifstream test(_fileName.c_str());
+    if(!test)
+    {
+	cerr << _path << ": can't open `" << _fileName << "' for reading: " << strerror(errno) << endl;
+	return false;
+    }
+    test.close();
+
+    return true;
+}
+
+string
+Slice::Preprocessor::searchIceCpp()
+{
+    const char* icecpp = "icecpp";
+
+    string::size_type pos = _path.find_last_of("/\\");
+    if(pos != string::npos)
+    {
+	string path = _path.substr(0, pos + 1);
+	path += icecpp;
+	
+	struct stat st;
+	if(stat(path.c_str(), &st) == 0)
+	{
+	    if(st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH))
+	    {
+		return path;
+	    }
+	}
+    }
+
+    return icecpp;
+}