Media CAS Proxy SDK release: 16.5.0
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ubuntu/google/protobuf/stubs/substitute.h
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174
ubuntu/google/protobuf/stubs/substitute.h
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// Protocol Buffers - Google's data interchange format
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// Copyright 2008 Google Inc. All rights reserved.
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// https://developers.google.com/protocol-buffers/
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Author: kenton@google.com (Kenton Varda)
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// from google3/strings/substitute.h
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#include <string>
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#include <google/protobuf/stubs/common.h>
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#include <google/protobuf/stubs/strutil.h>
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#ifndef GOOGLE_PROTOBUF_STUBS_SUBSTITUTE_H_
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#define GOOGLE_PROTOBUF_STUBS_SUBSTITUTE_H_
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#include <google/protobuf/port_def.inc>
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namespace google {
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namespace protobuf {
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namespace strings {
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// ----------------------------------------------------------------------
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// strings::Substitute()
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// strings::SubstituteAndAppend()
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// Kind of like StringPrintf, but different.
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//
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// Example:
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// string GetMessage(string first_name, string last_name, int age) {
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// return strings::Substitute("My name is $0 $1 and I am $2 years old.",
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// first_name, last_name, age);
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// }
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//
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// Differences from StringPrintf:
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// * The format string does not identify the types of arguments.
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// Instead, the magic of C++ deals with this for us. See below
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// for a list of accepted types.
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// * Substitutions in the format string are identified by a '$'
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// followed by a digit. So, you can use arguments out-of-order and
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// use the same argument multiple times.
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// * It's much faster than StringPrintf.
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//
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// Supported types:
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// * Strings (const char*, const string&)
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// * Note that this means you do not have to add .c_str() to all of
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// your strings. In fact, you shouldn't; it will be slower.
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// * int32, int64, uint32, uint64: Formatted using SimpleItoa().
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// * float, double: Formatted using SimpleFtoa() and SimpleDtoa().
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// * bool: Printed as "true" or "false".
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//
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// SubstituteAndAppend() is like Substitute() but appends the result to
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// *output. Example:
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//
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// string str;
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// strings::SubstituteAndAppend(&str,
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// "My name is $0 $1 and I am $2 years old.",
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// first_name, last_name, age);
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//
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// Substitute() is significantly faster than StringPrintf(). For very
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// large strings, it may be orders of magnitude faster.
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// ----------------------------------------------------------------------
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namespace internal { // Implementation details.
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class SubstituteArg {
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public:
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inline SubstituteArg(const char* value)
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: text_(value), size_(strlen(text_)) {}
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inline SubstituteArg(const std::string& value)
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: text_(value.data()), size_(value.size()) {}
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// Indicates that no argument was given.
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inline explicit SubstituteArg()
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: text_(nullptr), size_(-1) {}
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// Primitives
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// We don't overload for signed and unsigned char because if people are
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// explicitly declaring their chars as signed or unsigned then they are
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// probably actually using them as 8-bit integers and would probably
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// prefer an integer representation. But, we don't really know. So, we
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// make the caller decide what to do.
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inline SubstituteArg(char value)
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: text_(scratch_), size_(1) { scratch_[0] = value; }
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inline SubstituteArg(short value)
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: text_(FastInt32ToBuffer(value, scratch_)), size_(strlen(text_)) {}
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inline SubstituteArg(unsigned short value)
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: text_(FastUInt32ToBuffer(value, scratch_)), size_(strlen(text_)) {}
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inline SubstituteArg(int value)
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: text_(FastInt32ToBuffer(value, scratch_)), size_(strlen(text_)) {}
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inline SubstituteArg(unsigned int value)
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: text_(FastUInt32ToBuffer(value, scratch_)), size_(strlen(text_)) {}
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inline SubstituteArg(long value)
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: text_(FastLongToBuffer(value, scratch_)), size_(strlen(text_)) {}
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inline SubstituteArg(unsigned long value)
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: text_(FastULongToBuffer(value, scratch_)), size_(strlen(text_)) {}
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inline SubstituteArg(long long value)
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: text_(FastInt64ToBuffer(value, scratch_)), size_(strlen(text_)) {}
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inline SubstituteArg(unsigned long long value)
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: text_(FastUInt64ToBuffer(value, scratch_)), size_(strlen(text_)) {}
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inline SubstituteArg(float value)
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: text_(FloatToBuffer(value, scratch_)), size_(strlen(text_)) {}
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inline SubstituteArg(double value)
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: text_(DoubleToBuffer(value, scratch_)), size_(strlen(text_)) {}
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inline SubstituteArg(bool value)
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: text_(value ? "true" : "false"), size_(strlen(text_)) {}
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inline const char* data() const { return text_; }
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inline int size() const { return size_; }
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private:
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const char* text_;
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int size_;
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char scratch_[kFastToBufferSize];
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};
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} // namespace internal
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PROTOBUF_EXPORT std::string Substitute(
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const char* format,
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const internal::SubstituteArg& arg0 = internal::SubstituteArg(),
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const internal::SubstituteArg& arg1 = internal::SubstituteArg(),
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const internal::SubstituteArg& arg2 = internal::SubstituteArg(),
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const internal::SubstituteArg& arg3 = internal::SubstituteArg(),
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const internal::SubstituteArg& arg4 = internal::SubstituteArg(),
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const internal::SubstituteArg& arg5 = internal::SubstituteArg(),
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const internal::SubstituteArg& arg6 = internal::SubstituteArg(),
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const internal::SubstituteArg& arg7 = internal::SubstituteArg(),
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const internal::SubstituteArg& arg8 = internal::SubstituteArg(),
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const internal::SubstituteArg& arg9 = internal::SubstituteArg());
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PROTOBUF_EXPORT void SubstituteAndAppend(
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std::string* output, const char* format,
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const internal::SubstituteArg& arg0 = internal::SubstituteArg(),
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const internal::SubstituteArg& arg1 = internal::SubstituteArg(),
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const internal::SubstituteArg& arg2 = internal::SubstituteArg(),
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const internal::SubstituteArg& arg3 = internal::SubstituteArg(),
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const internal::SubstituteArg& arg4 = internal::SubstituteArg(),
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const internal::SubstituteArg& arg5 = internal::SubstituteArg(),
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const internal::SubstituteArg& arg6 = internal::SubstituteArg(),
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const internal::SubstituteArg& arg7 = internal::SubstituteArg(),
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const internal::SubstituteArg& arg8 = internal::SubstituteArg(),
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const internal::SubstituteArg& arg9 = internal::SubstituteArg());
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} // namespace strings
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} // namespace protobuf
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} // namespace google
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#include <google/protobuf/port_undef.inc>
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#endif // GOOGLE_PROTOBUF_STUBS_SUBSTITUTE_H_
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