cf6ab6bb2b
- b527a3e4b36b644ac424e3c525b1cd393f6f6c40 Fix some typos in the usage examples by Jorg Brown <jorg@google.com>
- 82be4a9adf3bb0ddafc0d46274969c99afffe870 Fix typo in optional.h comment. by Abseil Team <absl-team@google.com>
- d6ee63bf8fc51fba074c23b33cebc28c808d7f07 Remove internal-only identifiers from code. by Daniel Katz <katzdm@google.com>
- f9c3ad2f0d73f53b21603638af8b4bed636e79f4 Use easier understandable names for absl::StartsWith and ... by Abseil Team <absl-team@google.com>
- 7c16c14fefee89c927b8789d6043c4691bcffc9b Add -Wno-missing-prototypes back to the LLVM copts. by Derek Mauro <dmauro@google.com>
- 2f4b7d2e50c7023240242f1e15db60ccd7e8768d IWYU | absl/strings by Juemin Yang <jueminyang@google.com>
- a99cbcc1daa34a2d6a2bb26de275e05173cc77e9 IWYU | absl/type by Juemin Yang <jueminyang@google.com>
- 12e1146d0fc76c071d7e0ebaabb62f0a984fae66 Use LLVM_FLAGS and LLVM_TEST_FLAGS when --compiler=llvm. by Derek Mauro <dmauro@google.com>
- cd6bea616abda558d0bace5bd77455662a233688 IWYU | absl/debugging by Juemin Yang <jueminyang@google.com>
- d9a7382e59d46a8581b6b7a31cd5a48bb89326e9 IWYU | absl/synchronization by Juemin Yang <jueminyang@google.com>
- 07ec7d6d5a4a666f4183c5d0ed9c342baa7b24bc IWYU | absl/numeric by Juemin Yang <jueminyang@google.com>
- 12bfe40051f4270f8707e191af5652f83f2f750c Remove the RoundTrip{Float,Double}ToBuffer routines from ... by Jorg Brown <jorg@google.com>
- eeb4fd67c9d97f66cb9475c3c5e51ab132f1c810 Adds conversion functions for converting between absl/tim... by Greg Miller <jgm@google.com>
- 59a2108d05d4ea85dc5cc11e49b2cd2335d4295a Change Substitute to use %.6g formatting rather than 15/1... by Jorg Brown <jorg@google.com>
- 394becb48e0fcd161642cdaac5120d32567e0ef8 IWYU | absl/meta by Juemin Yang <jueminyang@google.com>
- 1e5da6e8da336699b2469dcf6dda025b9b0ec4c9 Rewrite atomic_hook.h to not use std::atomic<T*> under Wi... by Greg Falcon <gfalcon@google.com>
GitOrigin-RevId: b527a3e4b36b644ac424e3c525b1cd393f6f6c40
Change-Id: I14e331d91c956ef045ac7927091a9f179716de0c
83 lines
2.8 KiB
C++
83 lines
2.8 KiB
C++
//
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// Copyright 2017 The Abseil Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// -----------------------------------------------------------------------------
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// File: match.h
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// -----------------------------------------------------------------------------
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//
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// This file contains simple utilities for performing std::string matching checks.
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// All of these function parameters are specified as `absl::string_view`,
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// meaning that these functions can accept `std::string`, `absl::string_view` or
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// nul-terminated C-style strings.
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//
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// Examples:
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// std::string s = "foo";
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// absl::string_view sv = "f";
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// EXPECT_TRUE(absl::StrContains(s, sv));
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//
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// Note: The order of parameters in these functions is designed to mimic the
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// order an equivalent member function would exhibit;
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// e.g. `s.Contains(x)` ==> `absl::StrContains(s, x).
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#ifndef ABSL_STRINGS_MATCH_H_
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#define ABSL_STRINGS_MATCH_H_
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#include <cstring>
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#include "absl/strings/string_view.h"
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namespace absl {
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// StrContains()
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//
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// Returns whether a given std::string `haystack` contains the substring `needle`.
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inline bool StrContains(absl::string_view haystack, absl::string_view needle) {
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return static_cast<absl::string_view::size_type>(haystack.find(needle, 0)) !=
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haystack.npos;
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}
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// StartsWith()
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//
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// Returns whether a given std::string `text` begins with `prefix`.
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inline bool StartsWith(absl::string_view text, absl::string_view prefix) {
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return prefix.empty() ||
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(text.size() >= prefix.size() &&
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memcmp(text.data(), prefix.data(), prefix.size()) == 0);
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}
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// EndsWith()
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//
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// Returns whether a given std::string `text` ends with `suffix`.
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inline bool EndsWith(absl::string_view text, absl::string_view suffix) {
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return suffix.empty() ||
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(text.size() >= suffix.size() &&
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memcmp(text.data() + (text.size() - suffix.size()), suffix.data(),
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suffix.size()) == 0);
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}
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// StartsWithIgnoreCase()
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//
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// Returns whether a given std::string `text` starts with `starts_with`, ignoring
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// case in the comparison.
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bool StartsWithIgnoreCase(absl::string_view text, absl::string_view prefix);
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// EndsWithIgnoreCase()
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//
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// Returns whether a given std::string `text` ends with `ends_with`, ignoring case
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// in the comparison.
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bool EndsWithIgnoreCase(absl::string_view text, absl::string_view suffix);
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} // namespace absl
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#endif // ABSL_STRINGS_MATCH_H_
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