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Re: [Help-bash] color in bash read builtin prompt

From: Geir Hauge
Subject: Re: [Help-bash] color in bash read builtin prompt
Date: Mon, 20 Oct 2014 07:23:47 +0200

2014-10-20 4:20 GMT+02:00 Clark Wang <address@hidden>:

> On Fri, Oct 17, 2014 at 8:50 PM, Geir Hauge <address@hidden> wrote:
>> Also needs \1 and \2 around the non-printable bytes
> Hi Geir,
> What does \1 and \2 here means? Is there a tput command used to get them?

It's a somewhat undocumented feature of readline. There are two defines
in readline.h [1]:

/* Definitions available for use by readline clients. */
#define RL_PROMPT_END_IGNORE '\002'

Last time this came up, Chet explained that the \[ and \] of PS1 get
translated to those before being passed to readline.


Geir Hauge

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