perlop under Quote and Quote like Operators

The following escape sequences are available in constructs that interpolate, and in transliterations:

...

\033 [7,8] restricted range octal char (example: ESC)

...

Some contexts allow 2 or even 1 digit, but any usage without exactly three digits, the first being a zero, may give unintended results.

... 

($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,

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In reply to Re: Perldoc: String interpolation with octal escpape sequence like \1 by choroba
in thread Perldoc: String interpolation with octal escpape sequence like "\1" by LanX

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