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AK: Add invert_case() and invert_case(StringView)

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In the given String, invert_case() swaps lowercase characters with
uppercase ones and vice versa.
This commit is contained in:
huttongrabiel 2022-05-18 22:23:45 -07:00 • committed by Linus Groh
parent b1709c368f
commit 8ffa860bc3
4 changed files with 21 additions and 0 deletions
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14
AK/StringUtils.cpp
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@ -462,6 +462,20 @@ String to_titlecase(StringView str)
return builder.to_string();
}
String invert_case(StringView str)
{
StringBuilder builder(str.length());
for (auto ch : str) {
if (is_ascii_lower_alpha(ch))
builder.append(to_ascii_uppercase(ch));
else
builder.append(to_ascii_lowercase(ch));
}
return builder.to_string();
}
String replace(StringView str, StringView needle, StringView replacement, bool all_occurrences)
{
if (str.is_empty())