91 lines
2.3 KiB
C++
91 lines
2.3 KiB
C++
// OpenSTA, Static Timing Analyzer
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// Copyright (c) 2025, Parallax Software, Inc.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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//
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// The origin of this software must not be misrepresented; you must not
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// claim that you wrote the original software.
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//
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// Altered source versions must be plainly marked as such, and must not be
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// misrepresented as being the original software.
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//
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// This notice may not be removed or altered from any source distribution.
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#include "StringUtil.hh"
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#include <algorithm>
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#include <cctype>
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#include <charconv>
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#include <system_error>
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namespace sta {
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bool
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isDigits(const char *str)
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{
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for (const char *s = str; *s; s++) {
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if (!isdigit(*s))
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return false;
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}
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return true;
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}
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bool
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isDigits(std::string_view str)
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{
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for (char ch : str) {
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if (!isdigit(ch))
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return false;
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}
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return true;
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}
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// Wrapper for the absurdly named std::from_chars.
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std::pair<float, bool>
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stringFloat(const std::string &str)
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{
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float value;
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auto [ptr, ec] = std::from_chars(str.data(), str.data() + str.size(), value);
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if (ec == std::errc()
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&& *ptr == '\0')
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return {value, true};
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else
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return {0.0, false};
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}
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void
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trimRight(std::string &str)
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{
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str.erase(str.find_last_not_of(" ") + 1);
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}
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StringSeq
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parseTokens(const std::string &text,
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std::string_view delims)
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{
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StringSeq tokens;
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auto start = text.find_first_not_of(delims);
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auto end = text.find_first_of(delims, start);
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while (end != std::string::npos) {
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tokens.push_back(text.substr(start, end - start));
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start = text.find_first_not_of(delims, end);
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end = text.find_first_of(delims, start);
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}
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if (start != std::string::npos)
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tokens.push_back(text.substr(start));
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return tokens;
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}
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} // namespace
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