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// Copyright Contributors to the DNF5 project.
// Copyright Contributors to the libdnf project.
// SPDX-License-Identifier: LGPL-2.1-or-later
//
// This file is part of libdnf: https://github.com/rpm-software-management/libdnf/
//
// Libdnf is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 2.1 of the License, or
// (at your option) any later version.
//
// Libdnf 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with libdnf. If not, see <https://www.gnu.org/licenses/>.
#ifndef LIBDNF5_CLI_OUTPUT_ARGUMENT_PARSER_HPP
#define LIBDNF5_CLI_OUTPUT_ARGUMENT_PARSER_HPP
#include "libdnf5-cli/tty.hpp"
#include <libsmartcols/libsmartcols.h>
#include <string>
namespace libdnf5::cli::output {
// Usage requires a different class to Help (which extends Usage by adding a new column)
// because we want usage text to span across both Help's columns.
// This is a workaround for smartcols not being able to merge cells.
class Usage {
public:
explicit Usage() {
table = scols_new_table();
scols_table_enable_noheadings(table, 1);
if (libdnf5::cli::tty::is_coloring_enabled()) {
scols_table_enable_colors(table, 1);
}
struct libscols_symbols * sb = scols_new_symbols();
scols_symbols_set_branch(sb, " ");
scols_symbols_set_right(sb, " ");
scols_symbols_set_vertical(sb, " ");
scols_table_set_symbols(table, sb);
scols_unref_symbols(sb);
scols_table_set_column_separator(table, " ");
scols_table_new_column(table, "arg", 30, SCOLS_FL_TREE | SCOLS_FL_WRAP);
}
~Usage() { scols_unref_table(table); }
libscols_line * add_header(const std::string & text) {
struct libscols_line * ln = scols_table_new_line(table, nullptr);
scols_line_set_data(ln, COL_ARG, text.c_str());
scols_line_set_color(ln, "bold");
return ln;
}
void add_line(const std::string & text, libscols_line * parent = nullptr) {
struct libscols_line * ln = scols_table_new_line(table, parent);
scols_line_set_data(ln, COL_ARG, text.c_str());
}
void add_newline() { scols_table_new_line(table, nullptr); }
void print() { scols_print_table(table); }
libscols_table * get_table() const noexcept { return table; }
protected:
static constexpr int COL_ARG = 0;
struct libscols_table * table;
};
class Help : public Usage {
public:
explicit Help() {
// Sets a small relative width. We prefer to reduce the width of the description before reducing the argument.
scols_table_new_column(table, "desc", .1, SCOLS_FL_WRAP);
}
void add_line(const std::string & arg, const std::string & desc, libscols_line * parent = nullptr) {
struct libscols_line * ln = scols_table_new_line(table, parent);
scols_line_set_data(ln, COL_ARG, arg.c_str());
scols_line_set_data(ln, COL_DESC, desc.c_str());
}
protected:
static constexpr int COL_DESC = 1;
};
} // namespace libdnf5::cli::output
#endif // LIBDNF5_CLI_OUTPUT_ARGUMENT_PARSER_HPP
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