Return to StripCmd.cpp CVS log

Up to [Pegasus] / pegasus / src / utils / mu

Merged dev branch into main trunk.

//%=============================================================================
//
// Copyright (c) 2000 The Open Group, BMC Software, Tivoli Systems, IBM
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
//------------------------------------------------------------------------------
//
// Author: Michael E. Brasher
//
//%=============================================================================

#include <iostream>
#include <fstream>
#include "Files.h"
#include "StripCmd.h"
#include "Files.h"

static int _Strip(
    const string& arg0,
    const string& startPattern,
    const string& endPattern,
    const string& fileName)
{
    // -- Open input file:

    ifstream is(fileName.c_str());

    if (!is)
    {
	cerr << arg0 << ": failed to open \"" << fileName << "\"" << endl;
	return 1;
    }

    string tmpFileName = fileName + ".tmp";


    // -- Open output file:

    ofstream os(tmpFileName.c_str());

    if (!os)
    {
	cerr << arg0 << ": failed to open \"" << tmpFileName << "\"" << endl;
	return 1;
    }

    // -- Strip out the unwanted lines:

    bool inside = false;
    bool foundStart = false;
    bool foundEnd = false;
    string line;

    while (getline(is, line))
    {
	if (!foundStart && line.substr(0, startPattern.size()) == startPattern)
	{
	    foundStart = true;
	    inside = true;
	    continue;
	}

	if (!inside)
	    os << line << endl;

	if (!foundEnd && line.substr(0, endPattern.size()) == endPattern)
	{
	    foundEnd = true;
	    inside = false;
	}
    }

    is.close();
    os.close();

    if (!foundStart || !foundEnd)
    {
	RemoveFile(tmpFileName);
	return 0;
    }


    // -- Copy the temporary file back over the original:

    if (!CopyFile(tmpFileName, fileName))
    {
	cerr << arg0 << ": failed to copy file" << endl;
	return 1;
    }

    // -- Remove the temporary file:

    RemoveFile(tmpFileName);

    return 0;
}

int StripCmd(const vector<string>& args)
{
    // -- Check arguments:

    if (args.size() < 4)
    {
	cerr << args[0] << ": insufficient arguments" << endl;
	return 1;
    }

    // -- Create complete glob list:

    vector<string> fileNames;

    for (size_t i = 3; i < args.size(); i++)
	Glob(args[i], fileNames);

    for (size_t j = 0; j < fileNames.size(); j++)
    {
	int result = _Strip(args[0], args[1], args[2], fileNames[j]);

	if (result != 0)
	    return result;
    }

    return 0;
}