Re: ? Unsafe terminal escape sequences and ANSI codes from decryption

Simon Tatham <[email protected]> writes:
> "G.K." <[email protected]> writes:
>> Another distinction occurs to me that might ease the problem
>> requirement. Is there a cheap way to distinguish between control codes
>> and formatting codes (color, foreground, background, underline,
>> blinkenlights) codes in a text stream.
>
> 'less -R' does something along those lines. I don't know if the
> filtering code is conveniently separable from the rest of 'less', but
> it might be a start: somebody else has already done the work of making a
> set of decisions about which codes count in which category.

Anything the source thinks should be displayed in black on black should
not be trusted. Therefore you should prefer ``-r or --raw-control-chars''
to ``-R or --RAW-CONTROL-CHARS''.

Phil
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