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88 lines
2.9 KiB
88 lines
2.9 KiB
3 years ago
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/*
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* begin.cxx
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*
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* Copyright 2011-2022 Micke Nordin <hej@mic.ke>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#include <boost/iostreams/copy.hpp>
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#include <boost/iostreams/filter/bzip2.hpp>
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#include <boost/iostreams/filter/gzip.hpp>
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#include <boost/iostreams/filtering_streambuf.hpp>
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#include <boost/xpressive/xpressive.hpp>
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#include <fstream>
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#include <iostream>
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#include <string>
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using namespace std;
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int begin(string needle, istream &in) {
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string input; // This is where we keep our input, line by line
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boost::xpressive::sregex regex = boost::xpressive::sregex::compile(
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needle,
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boost::xpressive::regex_constants::icase); // this is what we search for
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if (!in.good()) { // Check if steam is ok
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cerr << "Could not open file \n";
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return 1; // if not return 1
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} else { // go ahead
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while (in) { // loop through input line by line
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getline(in, input);
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if (boost::xpressive::regex_search(input, regex)) { // if we find a match
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cout << input << endl; // start printing to std out
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while (in) { // and print what remains as well
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getline(in, input);
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cout << input << endl;
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} // end of inner while
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} // end of if
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} // end of outer while
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} // end of else
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return 0;
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}
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int begin(string needle, string haystack) {
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istringstream iss(haystack);
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istream &in(iss);
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return begin(needle, in);
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}
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string gzip_decomp(string filename) {
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ifstream file(filename, ios_base::in | ios_base::binary);
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stringstream compressed;
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compressed << file.rdbuf();
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stringstream decompressed;
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boost::iostreams::filtering_streambuf<boost::iostreams::input> out;
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out.push(boost::iostreams::gzip_decompressor());
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out.push(compressed);
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boost::iostreams::copy(out, decompressed);
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return decompressed.str();
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}
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string bzip_decomp(string filename) {
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ifstream file(filename, ios_base::in | ios_base::binary);
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stringstream compressed;
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compressed << file.rdbuf();
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stringstream decompressed;
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boost::iostreams::filtering_streambuf<boost::iostreams::input> out;
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out.push(boost::iostreams::bzip2_decompressor());
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out.push(compressed);
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boost::iostreams::copy(out, decompressed);
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return decompressed.str();
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}
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