RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-05-14 08:04:57 +00:00
Code Issues Activity Actions

AK+LibRegex: Partially implement case insensitive UTF-16 comparison

Browse source 
This will work for ASCII code points. Unicode case folding will be
needed for non-ASCII.
This commit is contained in:
Timothy Flynn 2021-07-21 16:38:12 -04:00 • committed by Linus Groh
parent 47f6bb38a1
commit 0e6375558d
3 changed files with 24 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

17
AK/Utf16View.cpp
View file

@ -4,6 +4,7 @@
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/CharacterTypes.h>
#include <AK/StringBuilder.h>
#include <AK/StringView.h>
#include <AK/Utf16View.h>
@ -214,6 +215,22 @@ bool Utf16View::operator==(Utf16View const& other) const
return true;
}
bool Utf16View::equals_ignoring_case(Utf16View const& other) const
{
if (length_in_code_units() == 0)
return other.length_in_code_units() == 0;
if (length_in_code_units() != other.length_in_code_units())
return false;
for (size_t i = 0; i < length_in_code_units(); ++i) {
// FIXME: Handle non-ASCII case insensitive comparisons.
if (to_ascii_lowercase(m_code_units[i]) != to_ascii_lowercase(other.m_code_units[i]))
return false;
}
return true;
}
Utf16CodePointIterator& Utf16CodePointIterator::operator++()
{
size_t code_units = length_in_code_units();