From 62e4c68907d8d33709c2c1f92a161dff00b3d5f2 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 15 Apr 2024 22:01:36 +0200 Subject: Adding upstream version 0.11.2. Signed-off-by: Daniel Baumann --- test/slicer.cc | 99 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 99 insertions(+) create mode 100644 test/slicer.cc (limited to 'test/slicer.cc') diff --git a/test/slicer.cc b/test/slicer.cc new file mode 100644 index 0000000..a44c5bf --- /dev/null +++ b/test/slicer.cc @@ -0,0 +1,99 @@ +/** + * Copyright (c) 2007-2012, Timothy Stack + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of Timothy Stack nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include +#include + +#include +#include +#include +#include +#include + +#include "line_buffer.hh" + +using namespace std; + +int +main(int argc, char* argv[]) +{ + int retval = EXIT_SUCCESS; + vector index; + auto_fd fd; + + if (argc < 2) { + fprintf(stderr, "error: expecting file argument\n"); + retval = EXIT_FAILURE; + } else if ((fd = open(argv[1], O_RDONLY)) == -1) { + perror("open"); + retval = EXIT_FAILURE; + } else { + int line_number, start, end; + line_buffer lb; + file_range range; + + lb.set_fd(fd); + while (true) { + auto load_result = lb.load_next_line(range); + + if (load_result.isErr()) { + return EXIT_FAILURE; + } + + auto li = load_result.unwrap(); + + if (li.li_file_range.empty()) { + break; + } + + index.emplace_back(li.li_file_range); + + range = li.li_file_range; + } + + try { + while (scanf("%d:%d:%d", &line_number, &start, &end) == 3) { + range = index[line_number]; + auto read_result = lb.read_range(range); + + if (read_result.isErr()) { + return EXIT_FAILURE; + } + + auto str = to_string(read_result.unwrap()); + + str = str.substr(start, end - start); + printf("%s\n", str.c_str()); + } + } catch (line_buffer::error& e) { + fprintf(stderr, "error: line buffer %s\n", strerror(e.e_err)); + } + } + return retval; +} -- cgit v1.2.3