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87bacede74
The name of a node or "(no name)" was written out in twenty places and four local functions, a lower-case copy of a text in four files, the test for a number, the file name of a template made comparable and the heading of a direction in three and two, the green main button of a panel in five and the key=value parameters of a self-test command in five. Each of them is one helper now: name_of, tall_button_height and main_button with the panel helpers, numeric with format, normalized with the include helpers, heading_of with the plan geometry and selftest_values with the tools; lower gives way to ToLower.
35 lines
916 B
C++
35 lines
916 B
C++
/*
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This Source Code Form is subject to the
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terms of the Mozilla Public License, v.
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2.0. If a copy of the MPL was not
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distributed with this file, You can
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obtain one at
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http://mozilla.org/MPL/2.0/.
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*/
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#pragma once
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#include <cstdio>
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#include <cstdlib>
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#include <string>
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// printf-style formatting into a string, for the messages and the data lines of the editor
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template <typename... Args>
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std::string format(char const *Format, Args... Arguments)
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{
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auto const length{std::snprintf(nullptr, 0, Format, Arguments...)};
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if (length <= 0)
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return {};
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std::string text(static_cast<std::size_t>(length) + 1, '\0');
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std::snprintf(text.data(), text.size(), Format, Arguments...);
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text.resize(static_cast<std::size_t>(length));
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return text;
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}
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inline bool numeric(std::string const &Text, double &Value)
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{
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char *end{nullptr};
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Value = std::strtod(Text.c_str(), &end);
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return false == Text.empty() && *end == '\0';
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}
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