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util/StringView: add SkipPrefix(), RemoveSuffix()

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Max Kellermann
2019-02-19 11:51:32 +01:00
parent 281461f0f0
commit 05aa9f72a9
1 changed files with 15 additions and 0 deletions
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15
src/util/StringView.hxx
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@@ -69,6 +69,7 @@ struct BasicStringView : ConstBuffer<T> {
using ConstBuffer<T>::back; using ConstBuffer<T>::back;
using ConstBuffer<T>::pop_front; using ConstBuffer<T>::pop_front;
using ConstBuffer<T>::pop_back; using ConstBuffer<T>::pop_back;
using ConstBuffer<T>::skip_front;
gcc_pure gcc_pure
pointer_type Find(value_type ch) const noexcept { pointer_type Find(value_type ch) const noexcept {
@@ -114,6 +115,20 @@ struct BasicStringView : ConstBuffer<T> {
StripLeft(); StripLeft();
StripRight(); StripRight();
} }
bool SkipPrefix(BasicStringView<T> needle) noexcept {
bool match = StartsWith(needle);
if (match)
skip_front(needle.size);
return match;
}
bool RemoveSuffix(BasicStringView<T> needle) noexcept {
bool match = EndsWith(needle);
if (match)
size -= needle.size;
return match;
}
}; };
struct StringView : BasicStringView<char> { struct StringView : BasicStringView<char> {