mirror of
https://github.com/SerenityOS/serenity
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b7a4c4482f
With this commit, <AK/Format.h> has a more supportive role and isn't
used directly.
Essentially, there now is a public 'vformat' function ('v' for vector)
which takes already type erased parameters. The name is choosen to
indicate that this function behaves similar to C-style functions taking
a va_list equivalent.
The interface for frontend users are now 'String::formatted' and
'StringBuilder::appendff'.
93 lines
2.9 KiB
C++
93 lines
2.9 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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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 met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (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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*/
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#pragma once
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#include <AK/ByteBuffer.h>
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#include <AK/Format.h>
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#include <AK/Forward.h>
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#include <AK/StringView.h>
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#include <stdarg.h>
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namespace AK {
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class StringBuilder {
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public:
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using OutputType = String;
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explicit StringBuilder(size_t initial_capacity = 16);
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~StringBuilder() { }
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void append(const StringView&);
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void append(const Utf32View&);
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void append(char);
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void append_code_point(u32);
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void append(const char*, size_t);
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void appendf(const char*, ...);
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void appendvf(const char*, va_list);
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template<typename... Parameters>
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void appendff(StringView fmtstr, const Parameters&... parameters)
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{
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const auto type_erased_parameters = make_type_erased_parameters(parameters...);
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vformat(*this, fmtstr, type_erased_parameters);
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}
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String build() const;
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String to_string() const;
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ByteBuffer to_byte_buffer() const;
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StringView string_view() const;
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void clear();
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size_t length() const { return m_length; }
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bool is_empty() const { return m_length == 0; }
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void trim(size_t count) { m_length -= count; }
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template<class SeparatorType, class CollectionType>
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void join(const SeparatorType& separator, const CollectionType& collection)
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{
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bool first = true;
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for (auto& item : collection) {
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if (first)
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first = false;
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else
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append(separator);
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append(item);
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}
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}
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private:
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void will_append(size_t);
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ByteBuffer m_buffer;
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size_t m_length { 0 };
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};
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}
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using AK::StringBuilder;
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