| //===--------------------- TildeExpressionResolver.h ------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLDB_UTILITY_TILDE_EXPRESSION_RESOLVER_H |
| #define LLDB_UTILITY_TILDE_EXPRESSION_RESOLVER_H |
| |
| #include "llvm/ADT/StringRef.h" |
| #include "llvm/ADT/StringSet.h" |
| |
| namespace llvm { |
| template <typename T> class SmallVectorImpl; |
| } |
| |
| namespace lldb_private { |
| class TildeExpressionResolver { |
| public: |
| virtual ~TildeExpressionResolver(); |
| |
| /// Resolve a Tilde Expression contained according to bash rules. |
| /// |
| /// \param Expr Contains the tilde expression to resolve. A valid tilde |
| /// expression must begin with a tilde and contain only non |
| /// separator characters. |
| /// |
| /// \param Output Contains the resolved tilde expression, or the original |
| /// input if the tilde expression could not be resolved. |
| /// |
| /// \returns true if \p Expr was successfully resolved, false otherwise. |
| virtual bool ResolveExact(llvm::StringRef Expr, |
| llvm::SmallVectorImpl<char> &Output) = 0; |
| |
| /// Auto-complete a tilde expression with all matching values. |
| /// |
| /// \param Expr Contains the tilde expression prefix to resolve. See |
| /// ResolveExact() for validity rules. |
| /// |
| /// \param Output Contains all matching home directories, each one |
| /// itself unresolved (i.e. you need to call ResolveExact |
| /// on each item to turn it into a real path). |
| /// |
| /// \returns true if there were any matches, false otherwise. |
| virtual bool ResolvePartial(llvm::StringRef Expr, |
| llvm::StringSet<> &Output) = 0; |
| |
| /// Resolve an entire path that begins with a tilde expression, replacing |
| /// the username portion with the matched result. |
| bool ResolveFullPath(llvm::StringRef Expr, |
| llvm::SmallVectorImpl<char> &Output); |
| }; |
| |
| class StandardTildeExpressionResolver : public TildeExpressionResolver { |
| public: |
| bool ResolveExact(llvm::StringRef Expr, |
| llvm::SmallVectorImpl<char> &Output) override; |
| bool ResolvePartial(llvm::StringRef Expr, llvm::StringSet<> &Output) override; |
| }; |
| } |
| |
| #endif // #ifndef LLDB_UTILITY_TILDE_EXPRESSION_RESOLVER_H |