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/*
CCCC - C and C++ Code Counter
Copyright (C) 1994-2005 Tim Littlefair (tim_littlefair@hotmail.com)
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "cccc.h"
#include <fstream>
#include "cccc_itm.h"
#include "cccc_db.h"
CCCC_Project *current_loading_project=NULL;
CCCC_Module *current_loading_module=NULL;
CCCC_Member *current_loading_extent=NULL;
CCCC_UseRelationship *current_loading_userel=NULL;
#define LINE_BUFFER_SIZE 1000
int ifstr_line;
extern CCCC_Project *prj;
// the file scope variable last_supplier is used to supress repeated
// output of the supplier name in the use relationship section where
// the current record has the same supplier as the previous one
// the indentation makes this reasonably clear
static string last_supplier="";
// persistence facilities
#define SEP '@'
// This function provides the ability for the persistence functions
// defined below to do a quick peek at the first token on the stream
// leaving the get pointer at the start of that token.
// This should be static, but on MSVC++ this gives me an unresolved
// symbol at link.
bool PeekAtNextLinePrefix(ifstream& ifstr, string pfx)
{
bool retval=false;
char prefix_buffer[1024];
size_t initial_stream_pos=ifstr.tellg();
ifstr.getline(prefix_buffer,1023,SEP);
if(pfx==prefix_buffer)
{
retval=true;
}
ifstr.seekg(initial_stream_pos);
return retval;
}
// this is a sort of abstract junkyard function (cf Abstract Factory)
template <class T> void DisposeOfImportRecord(T *record_ptr, int fromfile_status)
{
switch(fromfile_status)
{
case RECORD_ADDED:
// the newly created object has been added to the
// database
// we must not delete it
break;
case RECORD_TRANSCRIBED:
// the database already had an object for this item
// the content of the new object was merged in, but the object
// itself is no longer required
delete record_ptr;
break;
default:
// something went wrong, so we mention it
cerr << "Import error " << fromfile_status
<< " at line " << ifstr_line
<< " for " << record_ptr->key()
<< endl;
delete record_ptr;
}
}
// when we add a record to, for example, the extent table for a member of
// a module, we need to merge the information in the new extent
// with what is already known
// there are two kinds of merge:
// 1. ordinary fields like module_type should either be consistent or
// blank for all extents relating to the same module, so where the old
// field is blank, we overwrite with the new field
// 2. the flags field in CCCC_Member contains a variety of single character
// flags giving the visibility, constness, etc. of the member, with '?' being
// used to reflect a state of lack of knowledge: in these cases, any other
// value can overwrite '?', all other values do not change.
void Resolve_Fields(string& field1, string& field2)
{
if(field1.size()==0)
{
field1=field2;
}
}
template
void
DisposeOfImportRecord(CCCC_Module *record_ptr, int fromfile_status);
template
void
DisposeOfImportRecord(CCCC_Member *record_ptr, int fromfile_status);
template
void
DisposeOfImportRecord(CCCC_UseRelationship *record_ptr, int fromfile_status);
template
void
DisposeOfImportRecord(CCCC_Extent *record_ptr, int fromfile_status);
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