77 lines
3.2 KiB
C++
77 lines
3.2 KiB
C++
/*
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* Copyright © 2015-2023 Dynare Team
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*
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* This file is part of Dynare.
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*
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* Dynare 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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* Dynare 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 Dynare. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <algorithm>
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#include <filesystem>
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#include <fstream>
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#include <regex>
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#include <sstream>
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#include "macro/Driver.hh"
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stringstream
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macroExpandModFile(const filesystem::path& filename, const istream& modfile, bool debug,
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bool save_macro, filesystem::path save_macro_file, bool line_macro,
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const vector<pair<string, string>>& defines, vector<filesystem::path> paths)
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{
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// Do macro processing
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stringstream macro_output;
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macro::Environment env = macro::Environment();
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macro::Driver m;
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/* Calling string() method on filename: not necessary on GNU/Linux and macOS because there is an
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implicit conversion from filesystem:path to string (i.e. basic_string<char>), but needed on
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Windows because the implicit conversion is only to wstring (i.e. basic_string<wchar_t>). */
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m.parse(filename.string(), modfile, debug, defines, env, paths, macro_output);
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if (save_macro)
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{
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if (save_macro_file.empty())
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save_macro_file = filename.stem().string() + "-macroexp.mod";
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ofstream macro_output_file {save_macro_file};
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if (macro_output_file.fail())
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{
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cerr << "Cannot open " << save_macro_file.string() << " for macro output" << endl;
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exit(EXIT_FAILURE);
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}
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string str(macro_output.str());
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if (!line_macro)
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{
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/* Remove the @#line directives.
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Unfortunately GCC 11 does not yet support std::regex::multiline
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(despite it being in the C++17 standard), so we are forced to use
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a trick to emulate the “usual” behaviour of the caret ^;
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here, the latter only matches the beginning of file.
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This also means that we are forced to remove the EOL before the
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@#line, and not the one after it (matching the EOL before and the
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EOL after in the same regexp does not work). */
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str = regex_replace(str, regex(R"((^|\r?\n)@#line.*)"), "");
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/* Remove the EOLs at the beginning of the output, the first one
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being a remnant of the first @#line directive. */
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str = regex_replace(str, regex(R"(^(\r?\n)+)"), "");
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/* Replace sequences of several newlines by a single newline (in
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both LF and CR+LF conventions). */
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str = regex_replace(str, regex(R"(\n{2,})"), "\n");
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str = regex_replace(str, regex(R"((\r\n){2,})"), "\r\n");
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}
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macro_output_file << str;
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macro_output_file.close();
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}
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return macro_output;
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}
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