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[PR #1978] Add support for XTPUSHSGR / XTPOPSGR #24742

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opened 2026-01-31 09:05:06 +00:00 by claunia · 0 comments
claunia commented 2026-01-31 09:05:06 +00:00
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Original Pull Request: https://github.com/microsoft/terminal/pull/1978

State: closed
Merged: Yes

Summary of the Pull Request

Implement the XTPUSHSGR and XTPOPSGR control sequences (see #1796).

This change adds a new pair of methods to ITermDispatch:
PushGraphicsRendition and PopGraphicsRendition, and then plumbs the
change through AdaptDispatch, TerminalDispatch, ITerminalApi and
TerminalApi.

The stack logic is encapsulated in the SgrStack class, to allow it to
be reused between the two APIs (AdaptDispatch and TerminalDispatch).

Like xterm, only ten levels of nesting are supported.

The stack is implemented as a "ring stack": if you push when the stack
is full, the bottom of the stack will be dropped to make room.

Partial pushes (see the description of XTPUSHSGR in Issue #1796) are
implemented per xterm spec.

Validation Steps Performed

Tests added, plus manual verification of the feature.

Closes #1796

**Original Pull Request:** https://github.com/microsoft/terminal/pull/1978 **State:** closed **Merged:** Yes --- ## Summary of the Pull Request Implement the `XTPUSHSGR` and `XTPOPSGR` control sequences (see #1796). This change adds a new pair of methods to `ITermDispatch`: `PushGraphicsRendition` and `PopGraphicsRendition`, and then plumbs the change through `AdaptDispatch`, `TerminalDispatch`, `ITerminalApi` and `TerminalApi`. The stack logic is encapsulated in the `SgrStack` class, to allow it to be reused between the two APIs (`AdaptDispatch` and `TerminalDispatch`). Like xterm, only ten levels of nesting are supported. The stack is implemented as a "ring stack": if you push when the stack is full, the bottom of the stack will be dropped to make room. Partial pushes (see the description of `XTPUSHSGR` in Issue #1796) are implemented per xterm spec. ## Validation Steps Performed Tests added, plus manual verification of the feature. Closes #1796
claunia added the pull-request label 2026-01-31 09:05:06 +00:00
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