1 // Copyright (c) 2010-2021, Lawrence Livermore National Security, LLC. Produced
2 // at the Lawrence Livermore National Laboratory. All Rights reserved. See files
3 // LICENSE and NOTICE for details. LLNL-CODE-806117.
4 //
5 // This file is part of the MFEM library. For more information and source code
6 // availability visit https://mfem.org.
7 //
8 // MFEM is free software; you can redistribute it and/or modify it under the
9 // terms of the BSD-3 license. We welcome feedback and contributions, see file
10 // CONTRIBUTING.md for details.
11
12 #ifndef MFEM_TEXT
13 #define MFEM_TEXT
14
15 #include "../config/config.hpp"
16 #include <istream>
17 #include <iomanip>
18 #include <sstream>
19 #include <string>
20 #include <limits>
21 #include <algorithm>
22
23 namespace mfem
24 {
25
26 // Utilities for text parsing
27
28 using std::to_string;
29
30 /// Check if the stream starts with @a comment_char. If so skip it.
skip_comment_lines(std::istream & is,const char comment_char)31 inline void skip_comment_lines(std::istream &is, const char comment_char)
32 {
33 while (1)
34 {
35 is >> std::ws;
36 if (is.peek() != comment_char)
37 {
38 break;
39 }
40 is.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
41 }
42 }
43
44 /// Check for, and remove, a trailing '\\r' from and std::string.
filter_dos(std::string & line)45 inline void filter_dos(std::string &line)
46 {
47 if (!line.empty() && *line.rbegin() == '\r')
48 {
49 line.resize(line.size()-1);
50 }
51 }
52
53 /// Convert an integer to a 0-padded string with the given number of @a digits
to_padded_string(int i,int digits)54 inline std::string to_padded_string(int i, int digits)
55 {
56 std::ostringstream oss;
57 oss << std::setw(digits) << std::setfill('0') << i;
58 return oss.str();
59 }
60
61 /// Convert a string to an int
to_int(const std::string & str)62 inline int to_int(const std::string& str)
63 {
64 int i;
65 std::stringstream(str) >> i;
66 return i;
67 }
68
69 }
70
71 #endif
72