Serenity Operating System
AK: Add StringBuilder::join() for joining collections with a separator
This patch adds a generic StringBuilder::join(separator, collection):
Vector<String> strings = { "well", "hello", "friends" };
StringBuilder builder;
builder.join("+ ", strings);
builder.to_string(); // "well + hello + friends"
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AK/StringBuilder.h
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AK/StringBuilder.h
···
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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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+
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private:
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void will_append(size_t);
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