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regex.h
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1 //
2 // Copyright 2017 Pixar
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4 // Licensed under the Apache License, Version 2.0 (the "Apache License")
5 // with the following modification; you may not use this file except in
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24 #ifndef PXR_BASE_ARCH_REGEX_H
25 #define PXR_BASE_ARCH_REGEX_H
26 
27 #include "pxr/pxr.h"
28 #include "pxr/base/arch/api.h"
29 
30 #include <memory>
31 #include <string>
32 
34 
35 class ArchRegex {
36 public:
37  enum : unsigned int {
39  GLOB = 2u
40  };
41 
42  /// Create an empty regex.
43  ArchRegex() = default;
44 
45  ArchRegex(ArchRegex &&) noexcept = default;
46  ArchRegex(ArchRegex const &) = default;
47  ArchRegex &operator=(ArchRegex &&) noexcept = default;
48  ArchRegex &operator=(ArchRegex const &) = default;
49 
50  /// Create with pattern and optional flags.
51  ARCH_API ArchRegex(const std::string& pattern, unsigned int flags = 0);
52 
53  /// Destructor.
55 
56  /// Returns \c true if the regex is valid.
57  ARCH_API explicit operator bool() const;
58 
59  /// Returns the reason the regex is invalid or the empty string if
60  /// it's valid.
61  ARCH_API std::string GetError() const;
62 
63  /// Returns the flags used to construct the regex.
64  ARCH_API unsigned int GetFlags() const;
65 
66  /// Returns \c true if the regex matches \p query anywhere, otherwise
67  /// returns \c false.
68  ARCH_API bool Match(const std::string& query) const;
69 
70 private:
71  class _Impl;
72  unsigned int _flags = 0;
73  std::string _error;
74  std::shared_ptr<const _Impl> _impl;
75 };
76 
78 
79 #endif // PXR_BASE_ARCH_REGEX_H
GLenum query
Definition: glad.h:2772
GLbitfield flags
Definition: glcorearb.h:1596
*get result *(waiting if necessary)*A common idiom is to fire a bunch of sub tasks at the and then *wait for them to all complete We provide a helper class
Definition: thread.h:623
ARCH_API unsigned int GetFlags() const
Returns the flags used to construct the regex.
ARCH_API bool Match(const std::string &query) const
ARCH_API std::string GetError() const
GLushort pattern
Definition: glad.h:2583
PXR_NAMESPACE_CLOSE_SCOPE PXR_NAMESPACE_OPEN_SCOPE
Definition: path.h:1432
#define PXR_NAMESPACE_CLOSE_SCOPE
Definition: pxr.h:91
#define ARCH_API
Definition: api.h:40
ArchRegex()=default
Create an empty regex.