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uniquify.C
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1998-06-12
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// $Id: uniquify.C,v 1.2 1998/06/12 13:23:08 zeller Exp $ -*- C++ -*-
// Shorten file names to unique base names
// Copyright (C) 1998 Technische Universitaet Braunschweig, Germany.
// Written by Andreas Zeller <zeller@ips.cs.tu-bs.de>.
//
// This file is part of DDD.
//
// DDD 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.
//
// DDD 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 DDD -- see the file COPYING.
// If not, write to the Free Software Foundation, Inc.,
// 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// DDD is the data display debugger.
// For details, see the DDD World-Wide-Web page,
// `http://www.cs.tu-bs.de/softech/ddd/',
// or send a mail to the DDD developers <ddd@ips.cs.tu-bs.de>.
char uniquify_rcsid[] =
"$Id: uniquify.C,v 1.2 1998/06/12 13:23:08 zeller Exp $";
#ifdef __GNUG__
#pragma implementation
#endif
#include "uniquify.h"
#include "SmartC.h"
#include "bool.h"
static const char *file_basename(const char *name, char sep)
{
const char *base = name;
while (*name)
{
if (*name++ == sep)
base = name;
}
return base;
}
// FULL_PATH is /X/Y/Z/NAME; expand NAME to Z/NAME.
static bool expand_label(string& name, const string& full_path, char sep)
{
// Set index to the last SEP before NAME
int index = full_path.length() - name.length();
index = full_path.index(sep, index - full_path.length() - 1);
if (index >= 1)
{
// Set index to the last SEP before Z
index--;
index = full_path.index(sep, index - full_path.length() - 1);
}
if (index >= 1)
{
name = full_path.after(index);
return true;
}
else
{
name = full_path;
return false;
}
}
// Make each item in LABELS a base name of FILES, such that all
// items have unique names.
extern void uniquify(StringArray& files, StringArray& labels, char sep)
{
// Start with base names
static StringArray empty;
labels = empty;
int i;
for (i = 0; i < files.size(); i++)
labels += file_basename(files[i], sep);
// While there are any duplicate labels, add the directory names
i = 0;
while (i < labels.size())
{
bool expanded = false;
for (int j = i + 1; j < labels.size(); j++)
{
if (labels[i] == labels[j])
{
if (expand_label(labels[j], files[j], sep))
expanded = true;
}
}
if (expanded && expand_label(labels[i], files[i], sep))
{
// Try again with expanded labels
}
else
{
i++;
}
}
}