Re: Escape characters in $psvar[]

[Peter Stephenson <Peter.Stephenson@xxxxxxx>]

On Fri, 19 Nov 2010 14:04:35 +0100
> A user uses the `clint' prompt, which uses `psvar' to include results
> from `vcs_info'. He wanted to include colour codes in the vcs_info
> formats for proper eye candy. Which resulted in literal "^[[35m"
> strings in the actual prompt instead of colours.
> 
> It seems using $psvar[] replaces escape characters (ascii 0x1b) with
> two characters: `^' and `[':
>
> Is that indented behaviour or a bug? A quick skim through the docs
> didn't turn up an answer.

psvar is sanitized by going through nicechar(), or equivalent, so it
appears to be deliberate if undocumented.  I think one of the points of
psvar is to protect it from funny goings on in prompt expansion; you can
set $prompt_subst and use $psvar[1] if you prefer the other way.

You'd need to surround with %{ ... %} however you did it, or use the new
colour codes.

-- 
Peter Stephenson <pws@xxxxxxx>            Software Engineer
Tel: +44 (0)1223 692070                   Cambridge Silicon Radio Limited
Churchill House, Cambridge Business Park, Cowley Road, Cambridge, CB4 0WZ, UK



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