2 commits

Author	SHA1	Message	Date
Andreas Kling	bf5f24ab36	AK: Add Utf16StringBuilder formatting helpers ... Add vformat support for Utf16StringBuilder and expose appendff and try_appendff helpers on the builder itself. This lets callers build a Utf16String on the purpose-built UTF-16 path even when using formatting. Use the new API for Utf16String::formatted and add AK coverage for formatting directly into a Utf16StringBuilder.	2026-06-22 16:10:40 +02:00
Andreas Kling	488006d276	AK: Add Utf16StringBuilder ... Add a purpose-built builder for constructing Utf16String values. It keeps ASCII storage while possible, widens to UTF-16 when needed, and can hand outline storage to Utf16StringData for direct adoption. Add AK coverage for ASCII strings, UTF-16 widening, code points, trimming, and long string construction.	2026-06-22 16:10:40 +02:00