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rasterm

Encodes images to iTerm / Kitty / SIXEL (terminal) inline graphics protocols.

GoDoc

rasterm sample output

Supported Image Encodings

  • Kitty
  • iTerm2 / WezTerm
  • Sixel

TODO

TESTING

Notes

terminal features matrix

terminal sixel iTerm2 format kitty format
iterm2 Y Y
kitty Y
mintty Y Y
mlterm Y Y
putty
rlogin Y Y
wezterm Y Y
xterm Y

known responses

CSI 0 c

terminal response
apple terminal \x1b[?1;2c
guake \x1b[?65;1;9c
iterm2 \x1b[?62;4c
kitty \x1b[?62;c
mintty \x1b[?64;1;2;4;6;9;15;21;22;28;29c
mlterm \x1b[?63;1;2;3;4;7;29c
putty \x1b[?6c
rlogin \x1b[?65;1;2;3;4;6;7;8;9;15;18;21;22;29;39;42;44c
st \x1b[?6c
terminology \x1b[?64;1;9;15;18;21;22c
vimterm \x1b[?1;2c
wez \x1b[?65;4;6;18;22c
xfce \x1b[?65;1;9c
xterm \x1b[?63;1;2;4;6;9;15;22c

CSI > 0 c

terminal response
apple terminal \x1b[>1;95;0c
guake \x1b[>65;5402;1c
iterm2 \x1b[>0;95;0c
kitty \x1b[>1;4000;19c
mintty \x1b[>77;30104;0c
mlterm \x1b[>24;279;0c
putty \x1b[>0;136;0c
rlogin \x1b[>65;331;0c
st NO RESPONSE
vimterm \x1b[>0;100;0c
wez \x1b[>0;0;0c
xfce \x1b[>65;5402;1c
xterm \x1b[>19;344;0c

identifications

terminal values
apple terminal TERM_PROGRAM="Apple_Terminal"
apple terminal __CFBundleIdentifier="com.apple.Terminal"
guake
iterm2 LC_TERMINAL="iTerm2"
kitty TERM="xterm-kitty"
mintty TERM="mintty"
mlterm
putty
rlogin
st
terminology TERM_PROGRAM=terminology
vimterm VIM_TERMINAL is set
wez TERM_PROGRAM="wezterm"
xfce
xterm

opinions

  • Sixel is a primitive and wasteful format. Most sixel terminals also support the iTerm2 format--fewer bytes, full color instead of paletted, and no pixel re-processing required. Much better!

go stuff

go tool pprof -http=:8080 ./name.prof
godoc -http=:8099 -goroot="$HOME/go"
go test -v
go mod tidy
https://blog.golang.org/pprof

more reading