b3aaac8a37
-- 9beb68204986a015c9cb065b9fae4f9a8879a788 by Abseil Team <absl-team@google.com>: Move Base64EscapeInternal and CalculateBase64EscapedLenInternal to an internal header. PiperOrigin-RevId: 288917378 -- 90acfbe03b3f9f6de3ffa49c39343dfaa2c5d38c by Greg Falcon <gfalcon@google.com>: Update macos CI script to support the ALTERNATE_OPTIONS environment variable. PiperOrigin-RevId: 288913564 -- f1572e870678cdcda6b48cb39780d1ad984e4c1b by Derek Mauro <dmauro@google.com>: Makes absl::NullSafeStringView constexpr Fixes https://github.com/abseil/abseil-cpp/issues/583 PiperOrigin-RevId: 288906940 -- d28a8471e32c10caa64bfffe6d6d4d0a8d144013 by Abseil Team <absl-team@google.com>: absl::GetFlag is lock free for small trivially copyable types. PiperOrigin-RevId: 288768172 -- 2643b8ed1a1dc836b38ab9e46538a1af129ffd67 by Gennadiy Rozental <rogeeff@google.com>: Eliminate call to callback from flag initialization. We do not need to have this invocation inside FlagImpl::Init since SetCallback performs invocation anyways. Calling InitCallback from inside of Init complicates separation of value initialization from data guard initialization, which is about to happen. PiperOrigin-RevId: 288732526 -- 22caa880b7a4cb6da34e16a2e064a473c99e880b by Abseil Team <absl-team@google.com>: Fix the documentation on how to create a null string_view. PiperOrigin-RevId: 288727968 -- 10727c5cadc561837141176f4c9b9717cec9233a by Greg Falcon <gfalcon@google.com>: Change CI scripts for gcc to use the ALTERNATE_OPTIONS file as well. PiperOrigin-RevId: 288718855 -- 5d1e2dd6c7fb12af8aa4337a0f61872f5f0c5992 by Greg Falcon <gfalcon@google.com>: Add an option for using inline namespaces in Abseil. PiperOrigin-RevId: 288614491 GitOrigin-RevId: 9beb68204986a015c9cb065b9fae4f9a8879a788 Change-Id: If9acd46301e3df8cb231b4c16f7ed651bf4fb3c3
58 lines
2.3 KiB
C++
58 lines
2.3 KiB
C++
// Copyright 2020 The Abseil Authors.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// https://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#ifndef ABSL_STRINGS_INTERNAL_ESCAPING_H_
|
|
#define ABSL_STRINGS_INTERNAL_ESCAPING_H_
|
|
|
|
#include <cassert>
|
|
|
|
#include "absl/strings/internal/resize_uninitialized.h"
|
|
|
|
namespace absl {
|
|
ABSL_NAMESPACE_BEGIN
|
|
namespace strings_internal {
|
|
|
|
ABSL_CONST_INIT extern const char kBase64Chars[];
|
|
|
|
// Calculates how long a string will be when it is base64 encoded given its
|
|
// length and whether or not the result should be padded.
|
|
size_t CalculateBase64EscapedLenInternal(size_t input_len, bool do_padding);
|
|
|
|
// Base64-encodes `src` using the alphabet provided in `base64` and writes the
|
|
// result to `dest`. If `do_padding` is true, `dest` is padded with '=' chars
|
|
// until its length is a multiple of 3. Returns the length of `dest`.
|
|
size_t Base64EscapeInternal(const unsigned char* src, size_t szsrc, char* dest,
|
|
size_t szdest, const char* base64, bool do_padding);
|
|
|
|
// Base64-encodes `src` using the alphabet provided in `base64` and writes the
|
|
// result to `dest`. If `do_padding` is true, `dest` is padded with '=' chars
|
|
// until its length is a multiple of 3.
|
|
template <typename String>
|
|
void Base64EscapeInternal(const unsigned char* src, size_t szsrc, String* dest,
|
|
bool do_padding, const char* base64_chars) {
|
|
const size_t calc_escaped_size =
|
|
CalculateBase64EscapedLenInternal(szsrc, do_padding);
|
|
STLStringResizeUninitialized(dest, calc_escaped_size);
|
|
|
|
const size_t escaped_len = Base64EscapeInternal(
|
|
src, szsrc, &(*dest)[0], dest->size(), base64_chars, do_padding);
|
|
assert(calc_escaped_size == escaped_len);
|
|
dest->erase(escaped_len);
|
|
}
|
|
|
|
} // namespace strings_internal
|
|
ABSL_NAMESPACE_END
|
|
} // namespace absl
|
|
|
|
#endif // ABSL_STRINGS_INTERNAL_ESCAPING_H_
|