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54 lines
1.3 KiB
Plaintext
54 lines
1.3 KiB
Plaintext
import VTSequence from "@/components/VTSequence";
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# Repeat Previous Character (REP)
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<VTSequence sequence={["CSI", "Pn", "b"]} />
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Repeat the previously printed character `n` times.
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The parameter `n` must be an integer greater than or equal to 1. If `n` is less than
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or equal to 0, adjust `n` to be 1. If `n` is omitted, `n` defaults to 1.
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In xterm, only characters with single byte (less than decimal 256) are
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supported. In most other mainstream terminals, any character is supported.
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Each repeated character behaves identically to if it was manually typed in.
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Therefore, soft-wrapping, margins, etc. all behave the same as if the
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character was typed.
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The previously printed character is any character that is printed through
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any means. The previously printed character is not limited to characters
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a user manually types. If there is no previously typed character, this sequence
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does nothing.
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## Validation
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### REP V-1: Simple Usage
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```bash
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printf "\033[1;1H" # move to top-left
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printf "\033[0J" # clear screen
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printf "A"
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printf "\033[b"
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```
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```
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|AAc_______|
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```
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### REP V-2: Soft-Wrap
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```bash
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cols=$(tput cols)
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printf "\033[1;1H" # move to top-left
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printf "\033[0J" # clear screen
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printf "\033[${cols}G"
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printf "A"
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printf "\033[b"
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```
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```
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|_________A|
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|Ac________|
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```
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