81 lines
1.9 KiB
C++
81 lines
1.9 KiB
C++
// Copyright (c) 2010-2020, Lawrence Livermore National Security, LLC. Produced
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// at the Lawrence Livermore National Laboratory. All Rights reserved. See files
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// LICENSE and NOTICE for details. LLNL-CODE-806117.
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//
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// This file is part of the MFEM library. For more information and source code
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// availability visit https://mfem.org.
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//
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// MFEM is free software; you can redistribute it and/or modify it under the
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// terms of the BSD-3 license. We welcome feedback and contributions, see file
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// CONTRIBUTING.md for details.
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#ifndef MFEM_TEXT
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#define MFEM_TEXT
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#include <istream>
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#include <iomanip>
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#include <sstream>
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#include <string>
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#include <limits>
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#include <algorithm>
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namespace mfem
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{
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// Utilities for text parsing
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/// Check if the stream starts with @a comment_char. If so skip it.
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inline void skip_comment_lines(std::istream &is, const char comment_char)
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{
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while (1)
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{
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is >> std::ws;
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if (is.peek() != comment_char)
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{
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break;
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}
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is.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
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}
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}
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/// Check for, and remove, a trailing '\\r' from and std::string.
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inline void filter_dos(std::string &line)
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{
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if (!line.empty() && *line.rbegin() == '\r')
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{
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line.resize(line.size()-1);
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}
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}
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/// Convert an integer to an std::string.
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inline std::string to_string(int i)
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{
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std::stringstream ss;
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ss << i;
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// trim leading spaces
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std::string out_str = ss.str();
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out_str = out_str.substr(out_str.find_first_not_of(" \t"));
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return out_str;
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}
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/// Convert an integer to a 0-padded string with the given number of @a digits
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inline std::string to_padded_string(int i, int digits)
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{
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std::ostringstream oss;
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oss << std::setw(digits) << std::setfill('0') << i;
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return oss.str();
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}
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/// Convert a string to an int
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inline int to_int(const std::string& str)
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{
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int i;
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std::stringstream(str) >> i;
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return i;
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}
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}
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#endif
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