73 lines
3.0 KiB
C++
73 lines
3.0 KiB
C++
/********************************************************
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* ██████╗ ██████╗████████╗██╗
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* ██╔════╝ ██╔════╝╚══██╔══╝██║
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* ██║ ███╗██║ ██║ ██║
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* ██║ ██║██║ ██║ ██║
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* ╚██████╔╝╚██████╗ ██║ ███████╗
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* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
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* Geophysical Computational Tools & Library (GCTL)
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*
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* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
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*
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* GCTL is distributed under a dual licensing scheme. You can redistribute
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* it and/or modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation, either version 2
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* of the License, or (at your option) any later version. You should have
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* received a copy of the GNU Lesser General Public License along with this
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* program. If not, see <http://www.gnu.org/licenses/>.
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*
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* If the terms and conditions of the LGPL v.2. would prevent you from using
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* the GCTL, please consider the option to obtain a commercial license for a
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* fee. These licenses are offered by the GCTL's original author. As a rule,
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* licenses are provided "as-is", unlimited in time for a one time fee. Please
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* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
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* to include some description of your company and the realm of its activities.
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* Also add information on how to contact you by electronic and paper mail.
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******************************************************/
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#include "gctl/io.h"
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#include "gctl/utility.h"
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int main(int argc, char *argv[]) try
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{
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gctl::flags_parser fp;
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fp.set_proname("txtinfo");
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fp.set_proinfo("Display lines from a text file that starts with a given symbol. \
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This program is a toolkit of the GCTL package. The GCTL comes with ABSOLUTE NO WARRANTY. \
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Please see instructions or contact the author for more information.");
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fp.add_opt('i', "input", required_argument, NULL, "Input file name.", "<filename>", true);
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fp.add_opt('s', "symbol", required_argument, NULL, "Annotation symbol. The default is '#'.", "<symbol>", false);
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fp.add_opt('h', "help", no_argument, NULL, "Show help information.", 0, false);
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fp.configure(argc, argv);
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if(argc == 1 || fp.set_opt('h'))
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{
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fp.show_help_page();
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return 0;
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}
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std::string in_name, annote_symbol;
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fp.get_argv({'i', 's'}, {&in_name, &annote_symbol});
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if (annote_symbol == "NULL") annote_symbol = "#";
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// 查看是否通过强制参数检查
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if (!fp.pass_mandatory()) return 0;
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std::ifstream infile;
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gctl::open_infile(infile, in_name, "");
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std::string tmp_line;
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while(getline(infile, tmp_line))
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{
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if (tmp_line[0] == annote_symbol[0])
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{
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std::cout << tmp_line << std::endl;
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}
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}
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infile.close();
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return 0;
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}
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catch(std::exception &e)
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{
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GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
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} |