jaseg/lolcat
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
No description
84 commits 1 branch 6 tags 1.8 MiB
Find a file
jaseg f2c26ed7a7 Make lolcat interleave nicely with non-colored stderr 
This works by making lolcat always reset the color at the end of a line
on its input, and only setting a new color immediately before printing
the first character on the next line. This way, assuming that whatever
process is piped into lolcat follow the standard convention where stdout
is buffered line-wise, and only writes full lines to stderr, a process
that outputs to both stdout and stderr but that has only stdout piped
through lolcat (as most people would do) would have it's stderr output
interleave nicely uncolored with the lolcat-colored stdout output.

This won't always work, but it gets us most of the way there with little
effort and negligible (2 extra escape sequences per line of output)
performance overhead.

Thanks to github user @kolayne for reporting this as an issue!
2024-07-04 11:45:58 +02:00
autotools Bump version to v1.3 2022-11-19 17:40:06 +01:00
.gitignore Added little censoring script 2015-07-14 22:09:19 +02:00
.gitmodules Remove fmemopen altogether since it just doesn't work. 2018-07-22 18:39:01 +02:00
censor.c Fix variable scoping error 2020-12-25 15:54:09 +01:00
LICENSE Added a LICENSE 2014-10-24 11:13:57 +02:00
LOLCat-Rainbow.jpg Fixed the cat picture's filename 2014-10-25 16:57:53 +02:00
lolcat.c Make lolcat interleave nicely with non-colored stderr 2024-07-04 11:45:58 +02:00
Makefile Add --gradient option, allow specification of custom gradients. 2022-11-19 14:24:04 +01:00
PKGBUILD Bump version to v1.3 2022-11-19 17:40:06 +01:00
README.md Update README.md 2020-08-13 13:07:50 +02:00
screenshot.png Added a screenshot 2014-10-25 16:56:32 +02:00
sl.gif Adding cool sl gif. 2015-07-12 22:56:40 +02:00
xterm256lut.h Add --gradient option, allow specification of custom gradients. 2022-11-19 14:24:04 +01:00
xterm256lut_gen.py Add --gradient option, allow specification of custom gradients. 2022-11-19 14:24:04 +01:00

README.md

What?

Screenshot

Installation

Archlinux

There's an AUR package:

$ git clone https://aur.archlinux.org/packages/c-lolcat
$ cd c-lolcat
$ makepkg -csi

Fedora

$ dnf install lolcat

Ubuntu (Snap)

See this awesome blog post by a kind person from the internet:

$ snap install lolcat-c

Mac

Build loclcat with:

$ make lolcat

...and put the resulting binary at a place of your choice.

Others

$ make && sudo make install

Why?

This lolcat clone is an attempt to reduce the world's carbon dioxide emissions by optimizing inefficient code. It's >10x as fast and <0.1% as large as the original one.

newton~/d/lolcat <3 dmesg>foo
newton~/d/lolcat <3 time upstream/bin/lolcat foo
13.51user 1.34system 0:15.99elapsed 92%CPU (0avgtext+0avgdata 10864maxresident)k
0inputs+0outputs (0major+1716minor)pagefaults 0swaps
newton~/d/lolcat <3 time ./lolcat foo
0.02user 0.00system 0:00.09elapsed 34%CPU (0avgtext+0avgdata 1936maxresident)k
0inputs+0outputs (0major+117minor)pagefaults 0swaps

Bonus comparison with python-lolcat:

newton~/d/lolcat <3 dmesg>foo
$ time python-lolcat foo
12.27user 0.00system 0:12.29elapsed 99%CPU (0avgtext+0avgdata 11484maxresident)k
0inputs+0outputs (0major+1627minor)pagefaults 0swaps
$ time c-lolcat foo
0.29user 0.00system 0:00.30elapsed 98%CPU (0avgtext+0avgdata 468maxresident)k
0inputs+0outputs (0major+21minor)pagefaults 0swaps

(Read: c-lolcat << python-lolcat << ruby-lolcat)