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c546c81d07
Co-authored-by: Geoff Romer <gromer@google.com> Co-authored-by: Chandler Carruth <chandlerc@gmail.com>
36 lines
1.2 KiB
C++
36 lines
1.2 KiB
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#ifndef COMMON_STRING_HELPERS_H_
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#define COMMON_STRING_HELPERS_H_
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#include <optional>
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#include <string>
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#include "common/error.h"
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#include "llvm/ADT/StringRef.h"
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namespace Carbon {
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// Note llvm StringExtras has significant functionality which is intended to be
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// complementary to this.
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// Unescapes Carbon escape sequences in the source string. Returns std::nullopt
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// on bad input. `is_block_string` enables escaping unique to block string
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// literals, such as \<newline>.
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auto UnescapeStringLiteral(llvm::StringRef source, bool is_block_string = false)
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-> std::optional<std::string>;
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// Parses a block string literal in `source`.
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auto ParseBlockStringLiteral(llvm::StringRef source) -> ErrorOr<std::string>;
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// Returns true if the pointer is in the string ref (including equality with
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// `ref.end()`). This should be used instead of `<=` comparisons for
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// correctness.
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auto StringRefContainsPointer(llvm::StringRef ref, const char* ptr) -> bool;
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} // namespace Carbon
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#endif // COMMON_STRING_HELPERS_H_
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