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From: Sebastian Gniazdowski <sgniazdowski@gmail.com>
Date: Fri, 29 Apr 2016 13:34:19 +0200
Message-ID: <CAKc7PVDAUh=he-N+s1ZSGS8JfuCJ+66EB+bpkmOBhFaKXX-k=A@mail.gmail.com>
Subject: Support for 256 colors in zsh/curses
To: Zsh hackers list <zsh-workers@zsh.org>
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Hello,
the existing infrastructure in zsh/curses is quite nice. If user
requests color pair "a/b", it is first looked up in a hash table:

!(cpn = (Colorpairnode) gethashnode2(zcurses_colorpairs, colorpair))) {

if it doesn't exist, then "x/y" (e.g. "red/black") is translated to
corresponding integers, and init_pair is called:

if (next_cp >= COLOR_PAIRS || init_pair(next_cp, f, b) == ERR)  {

where "f" and "b" are the translated integers. The color pair is put
into the hash under "x/y" for future reuse.


To support 256 colors, all I had to do is translate num1/num2 into
f=num1, b=num2, i.e. just directly (classic atoi) translate color
number into integer to be passed to curses as its color number. Not
sure what else can I write, reading the code will reveal how
transparent the change is. Any questions maybe?

Best regards,
Sebastian Gniazdowski

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