1 //===-- GlobPattern.h - glob pattern matcher implementation -*- C++ -*-----===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file implements a glob pattern matcher. The glob pattern is the 11 // rule used by the shell. 12 // 13 //===----------------------------------------------------------------------===// 14 15 #ifndef LLVM_SUPPORT_GLOB_PATTERN_H 16 #define LLVM_SUPPORT_GLOB_PATTERN_H 17 18 #include "llvm/ADT/BitVector.h" 19 #include "llvm/ADT/Optional.h" 20 #include "llvm/ADT/StringRef.h" 21 #include "llvm/Support/Error.h" 22 #include <vector> 23 24 // This class represents a glob pattern. Supported metacharacters 25 // are "*", "?", "[<chars>]" and "[^<chars>]". 26 namespace llvm { 27 class BitVector; 28 template <typename T> class ArrayRef; 29 30 class GlobPattern { 31 public: 32 static Expected<GlobPattern> create(StringRef Pat); 33 bool match(StringRef S) const; 34 35 private: 36 bool matchOne(ArrayRef<BitVector> Pat, StringRef S) const; 37 38 // Parsed glob pattern. 39 std::vector<BitVector> Tokens; 40 41 // The following members are for optimization. 42 Optional<StringRef> Exact; 43 Optional<StringRef> Prefix; 44 Optional<StringRef> Suffix; 45 }; 46 } 47 48 #endif // LLVM_SUPPORT_GLOB_PATTERN_H 49
