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AK: Implement String::find_any_of() and StringView::find_any_of()

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This implements StringUtils::find_any_of() and uses it in
String::find_any_of() and StringView::find_any_of(). All uses of
find_{first,last}_of have been replaced with find_any_of(), find() or
find_last(). find_{first,last}_of have subsequently been removed.
This commit is contained in:
Max Wipfli 2021-07-01 18:12:21 +02:00 • committed by Andreas Kling
parent 17eddf3ac4
commit 9cc35d1ba3
12 changed files with 44 additions and 52 deletions
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18
AK/StringUtils.cpp
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@ -378,6 +378,24 @@ Vector<size_t> find_all(StringView const& haystack, StringView const& needle)
return positions;
}
Optional<size_t> find_any_of(StringView const& haystack, StringView const& needles, SearchDirection direction)
{
if (haystack.is_empty() || needles.is_empty())
return {};
if (direction == SearchDirection::Forward) {
for (size_t i = 0; i < haystack.length(); ++i) {
if (needles.contains(haystack[i]))
return i;
}
} else if (direction == SearchDirection::Backward) {
for (size_t i = haystack.length(); i > 0; --i) {
if (needles.contains(haystack[i - 1]))
return i - 1;
}
}
return {};
}
String to_snakecase(const StringView& str)
{
auto should_insert_underscore = [&](auto i, auto current_char) {