Re: [PATCH] Colorized REPL

[Mike Gran]

Hi Nala, Ludo-

> Could you comment this?  I’m not clear on what each field is.
> 
>> +(define *color-list*
>> +  `((CLEAR      .  "0")
>> +    (RESET      .  "0")
>> +    (BOLD        .  "1")
>> +    (DARK        .  "2")
>> +    (UNDERLINE  .  "4")
>> +    (UNDERSCORE  .  "4")
>> +    (BLINK      .  "5")
>> +    (REVERSE    .  "6")
>> +    (CONCEALED  .  "8")
>> +    (BLACK      .  "30")
>> +    (RED        .  "31")
>> +    (GREEN      .  "32")
>> +    (YELLOW      .  "33")
>> +    (BLUE        .  "34")
>> +    (MAGENTA    .  "35")
>> +    (CYAN        .  "36")
>> +    (WHITE      .  "37")
>> +    (ON-BLACK    .  "40")
>> +    (ON-RED      .  "41")
>> +    (ON-GREEN    .  "42")
>> +    (ON-YELLOW  .  "43")
>> +    (ON-BLUE    .  "44")
>> +    (ON-MAGENTA  .  "45")
>> +    (ON-CYAN    .  "46")
>> +    (ON-WHITE    .  "47")))

For what it is worth, below is the ECMA-48 standard's
concept of what these values do.  ECMA-48 lists "7"
as reverse, instead of "6".  


0 default
1 bold
2 faint
4 singly underlined
5 slowly blinking
6 rapidly blinking
7 negative image
8 concealed characters
30 black display
31 red display
32 green display
33 yellow display
34 blue display
35 magenta display
36 cyan display
37 white display
40 black background
41 red background
42 green background
43 yellow background
44 blue background
45 magenta background
46 cyan background
47 white background

Of course, each terminal
is different in practice. The only way to be sure you
are getting it right is to go through terminfo.
OTOH, these days when everything behaves almost like
color xterm, maybe parsing terminfo is just being
pedantic.

Thanks,

Mike Gran