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86 lines
2.7 KiB
86 lines
2.7 KiB
//===- Strings.h ------------------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLD_STRINGS_H
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#define LLD_STRINGS_H
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/ADT/Optional.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/GlobPattern.h"
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#include <string>
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#include <vector>
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namespace lld {
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// Returns a demangled C++ symbol name. If Name is not a mangled
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// name, it returns name.
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std::string demangleItanium(llvm::StringRef name);
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std::vector<uint8_t> parseHex(llvm::StringRef s);
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bool isValidCIdentifier(llvm::StringRef s);
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// Write the contents of the a buffer to a file
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void saveBuffer(llvm::StringRef buffer, const llvm::Twine &path);
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// A single pattern to match against. A pattern can either be double-quoted
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// text that should be matched exactly after removing the quoting marks or a
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// glob pattern in the sense of GlobPattern.
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class SingleStringMatcher {
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public:
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// Create a StringPattern from Pattern to be matched exactly irregardless
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// of globbing characters if ExactMatch is true.
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SingleStringMatcher(llvm::StringRef Pattern);
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// Match s against this pattern, exactly if ExactMatch is true.
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bool match(llvm::StringRef s) const;
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// Returns true for pattern "*" which will match all inputs.
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bool isTrivialMatchAll() const {
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return !ExactMatch && GlobPatternMatcher.isTrivialMatchAll();
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}
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private:
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// Whether to do an exact match irregardless of the presence of wildcard
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// character.
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bool ExactMatch;
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// GlobPattern object if not doing an exact match.
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llvm::GlobPattern GlobPatternMatcher;
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// StringRef to match exactly if doing an exact match.
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llvm::StringRef ExactPattern;
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};
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// This class represents multiple patterns to match against. A pattern can
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// either be a double-quoted text that should be matched exactly after removing
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// the quoted marks or a glob pattern.
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class StringMatcher {
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private:
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// Patterns to match against.
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std::vector<SingleStringMatcher> patterns;
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public:
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StringMatcher() = default;
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// Matcher for a single pattern.
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StringMatcher(llvm::StringRef Pattern)
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: patterns({SingleStringMatcher(Pattern)}) {}
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// Add a new pattern to the existing ones to match against.
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void addPattern(SingleStringMatcher Matcher) { patterns.push_back(Matcher); }
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bool empty() const { return patterns.empty(); }
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// Match s against the patterns.
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bool match(llvm::StringRef s) const;
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};
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} // namespace lld
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#endif
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