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50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
//===--- PrimitiveParsing.h - Primitive parsing routines ------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See http://swift.org/LICENSE.txt for license information
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// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// Primitive parsing routines useful in various places in the compiler.
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///
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_BASIC_PRIMITIVEPARSING_H
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#define SWIFT_BASIC_PRIMITIVEPARSING_H
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namespace swift {
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static inline unsigned measureNewline(const char *BufferPtr,
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const char *BufferEnd) {
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if (BufferPtr == BufferEnd)
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return 0;
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if (*BufferPtr == '\n')
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return 1;
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assert(*BufferPtr == '\r');
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unsigned Bytes = 1;
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if (BufferPtr != BufferEnd && *BufferPtr == '\n')
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Bytes++;
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return Bytes;
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}
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static inline unsigned measureNewline(StringRef S) {
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return measureNewline(S.data(), S.data() + S.size());
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}
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static inline bool startsWithNewline(StringRef S) {
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return S.startswith("\n") || S.startswith("\r\n");
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}
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} // namespace swift
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#endif // LLVM_SWIFT_BASIC_PRIMITIVEPARSING_H
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