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46 lines
921 B
Plaintext
46 lines
921 B
Plaintext
import VTSequence from "@/components/VTSequence";
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# Screen Alignment Test (DECALN)
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<VTSequence sequence={["ESC", "#", "8"]} />
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Reset margins, move cursor to the top left, and fill the screen with `E`.
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Reset the top, bottom, left, and right margins and unset [origin mode](#TODO).
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The cursor is moved to the top-left corner of the screen.
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All stylistic SGR attributes are unset, such as bold, blink, etc.
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SGR foreground and background colors are preserved.
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The [protected attribute](#TODO) is not unset.
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The entire screen is filled with the character `E`. The letter `E` ignores
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the current SGR settings and is written with no styling.
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## Validation
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### DECALN V-1: Simple Usage
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```bash
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printf "\033#8"
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```
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```
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|EEEEEEEE|
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|EEEEEEEE|
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|EEEEEEEE|
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```
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### DECALN V-2: Reset Margins
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```bash
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printf "\033[2;3r" # scroll region top/bottom
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printf "\033#8"
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printf "\033[T"
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```
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```
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|c_______|
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|EEEEEEEE|
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|EEEEEEEE|
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```
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