So that means that adding a new dialect should be relatively simple.

LineReader#readLine among other arguments has prompt and right prompt value.

Jline allows to define widgets implementing org.jline.reader.Widget and bind them to key strokes.

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Option	Description
\c	Current catalog
\d	Current database
\:name:	The value of Flink name property
\[ ... \]	Prompts can contain terminal control characters which, for example, change the color, background, or style of the prompt text. These non-printing control characters must be designated as invisible by surrounding them with \[ and \]. Multiple pairs of these can occur within the prompt.
\D	The full current date (yyyy-MM-dd HH:mm:ss.SSS)
\m	Minutes of the current time
\n	New line character
\O	The current month in three-letter format (Jan, Feb, …)
\o	The current month in numeric format
`\P`	am/pm
`\R`	The current time, in 24-hour military time (0–23)
\r	The current time, standard 12-hour time (1–12)
`\s`	Seconds of the current time
\t	A tab character
\w	The current day of the week in three-letter format (Mon, Tue, …)
\Y	The current year, four digits
\y	The current year, two digits
\\	A literal `\` backslash character
\x	`x`, for any `x` not listed above

Compatibility, Deprecation, and Migration Plan

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