remwharead/src/parse_options.cpp

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/* This file is part of remwharead.
* Copyright © 2019 tastytea <tastytea@tastytea.de>
*
* This program 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, version 3.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <iostream>
#include <exception>
#include <popl.hpp>
#include "version.hpp"
#include "parse_options.hpp"
using std::cout;
using std::cerr;
using std::endl;
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options::options()
{}
options::options(const uint8_t &status)
: status_code(status)
{}
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const options parse_options(const int argc, const char *argv[])
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{
string tags;
string format;
string span;
options opts;
try
{
popl::OptionParser op("Available options");
op.add<popl::Value<string>>
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("t", "tags", "Add tags to URI, delimited by commas.", "", &tags);
auto option_export = op.add<popl::Value<string>>
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("e", "export", "Export to format.", "simple", &format);
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op.add<popl::Value<string>>
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("f", "file", "Save output to file.", "", &opts.file);
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op.add<popl::Value<string>>
("T", "time-span",
"Only export entries between YYYY-MM-DD,YYYY-MM-DD.", "", &span);
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op.add<popl::Value<string>>
("s", "search-tags",
"Search in tags. Format: tag1 AND tag2 OR tag3.",
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"", &opts.search_tags);
op.add<popl::Value<string>>
("S", "search-all",
"Search in tags, title, description and full text.",
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"", &opts.search_all);
auto option_noarchive = op.add<popl::Switch>
("N", "no-archive", "Do not archive URI.");
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auto option_help = op.add<popl::Switch>
("h", "help", "Show this help message.");
auto option_version = op.add<popl::Switch>
("V", "version", "Print version, copyright and license.");
op.parse(argc, argv);
if (option_help->is_set())
{
cout << "Usage: " << argv[0] << " [-t tags] [-N] URI\n"
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<< " " << argv[0]
<< " -e format [-f file] [-T start,end] "
<< "[[-s|-S] expression]\n";
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cout << op;
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return options(0);
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}
if (option_version->is_set())
{
cout << "remwharead " << global::version << endl <<
"Copyright (C) 2019 tastytea <tastytea@tastytea.de>\n"
"License GPLv3: GNU GPL version 3 "
"<https://www.gnu.org/licenses/gpl-3.0.html>.\n"
"This program comes with ABSOLUTELY NO WARRANTY. This is free software,\n"
"and you are welcome to redistribute it under certain conditions.\n";
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return options(0);
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}
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if (option_noarchive->is_set())
{
opts.archive = false;
}
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if (!tags.empty())
{
size_t pos_end = 0;
size_t pos_start = 0;
while (pos_end != std::string::npos)
{
pos_end = tags.find(',', pos_start);
string buffer = tags.substr(pos_start, pos_end - pos_start);
while (*buffer.begin() == ' ') // Remove leading spaces.
{
buffer.erase(buffer.begin());
}
while (*buffer.rbegin() == ' ') // Remove trailing spaces.
{
buffer.erase(buffer.end() - 1);
}
opts.tags.push_back(buffer);
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pos_start = pos_end + 1;
}
}
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if (option_export->is_set())
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{
if (format == "csv")
{
opts.format = export_format::csv;
}
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else if (format == "asciidoc" || format == "adoc")
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{
opts.format = export_format::asciidoc;
}
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else if (format == "bookmarks")
{
opts.format = export_format::bookmarks;
}
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else if (format == "simple")
{
opts.format = export_format::simple;
}
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else
{
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opts.format = export_format::undefined;
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cerr << "Error: Export format must be "
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<< "csv, asciidoc, bookmarks or simple.\n";
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return options(1);
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}
}
if (!span.empty())
{
size_t pos = span.find(',');
if (pos != std::string::npos)
{
opts.span =
{
string_to_timepoint(span.substr(0, pos)),
string_to_timepoint(span.substr(pos + 1))
};
}
else
{
cerr << "Error: Time span must be in format: "
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"YYYY-MM-DD,YYYY-MM-DD.\n";
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return options(1);
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}
}
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if (op.non_option_args().size() > 0)
{
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opts.uri = op.non_option_args().front();
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}
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if (opts.uri == "" && opts.format == export_format::undefined)
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{
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cerr << "Error: You have to specify either URI or --export.\n";
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return options(1);
}
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}
catch (const std::exception &e)
{
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cerr << "Error in " << __func__ << ": " << e.what() << endl;
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return options(1);
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}
return opts;
}