Take MarkupString 2.18.1

[HarryCordewener]

Requested by Grave · project thread

Before: repeat() and the ljust()/rjust()/center() fills went through MarkupString 2.18.0's Repeat, which concatenated one copy per repetition (about 18 bytes and 16-28 ns a character).

After: MarkupString 2.18.1 builds the repeated text directly (SharpMUSH/MarkupString#62). Space.Repeat(1000000) goes from 18.5 ms / 18 MB to 1.0 ms / 2 MB. Output is unchanged.

How: MarkupStringVersion 2.18.0 -> 2.18.1 in Directory.Build.props. Follows #1812, which fixed space() on its own. Ran StringFunctionUnitTests, NumericCompatibilityTests, GuestOutputLimitTests, RestrictedExpressionTests, AlignUnitTests, MushTextTests, MushListTests and MarkupStringHandlerTests against the published packages: 602 pass.

🤖 Generated with Claude Code

https://claude.ai/code/session_01DGK2ENFwejRuxQ4am7VoVo

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Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-10-13T19:10:29.120094Z	e3bc7c1	PR opened

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