ditaaはアスキーアートで描かれた図をビットマップに変換するツール。 Javaで実装されていて、Clojureで書き直す計画があるよう。
https://github.com/stathissideris/ditaa
brew install ditaa
インストールできた。
bash-5.0$ ditaa
usage: java -jar ditaa.jar <INPFILE> [OUTFILE] [-A] [-b <BACKGROUND>] [-d]
[-E] [-e <ENCODING>] [-h] [--help] [-o] [-r] [-S] [-s <SCALE>]
[--svg] [--svg-font-url <FONT>] [-T] [-t <TABS>] [-v] [-W]
-A,--no-antialias Turns anti-aliasing off.
-b,--background <BACKGROUND> The background colour of the image. The
format should be a six-digit hexadecimal
number (as in HTML, FF0000 for red). Pass
an eight-digit hex to define transparency.
This is overridden by --transparent.
-d,--debug Renders the debug grid over the resulting
image.
-E,--no-separation Prevents the separation of common edges of
shapes.
-e,--encoding <ENCODING> The encoding of the input file.
-h,--html In this case the input is an HTML file.
The contents of the <pre
class="textdiagram"> tags are rendered as
diagrams and saved in the images directory
and a new HTML file is produced with the
appropriate <img> tags.
--help Prints usage help.
-o,--overwrite If the filename of the destination image
already exists, an alternative name is
chosen. If the overwrite option is
selected, the image file is instead
overwriten.
-r,--round-corners Causes all corners to be rendered as round
corners.
-S,--no-shadows Turns off the drop-shadow effect.
-s,--scale <SCALE> A natural number that determines the size
of the rendered image. The units are
fractions of the default size (2.5 renders
1.5 times bigger than the default).
--svg Write an SVG image as destination file.
--svg-font-url <FONT> SVG font URL.
-T,--transparent Causes the diagram to be rendered on a
transparent background. Overrides
--background.
-t,--tabs <TABS> Tabs are normally interpreted as 8 spaces
but it is possible to change that using
this option. It is not advisable to use
tabs in your diagrams.
-v,--verbose Makes ditaa more verbose.
-W,--fixed-slope Makes sides of parallelograms and
trapezoids fixed slope instead of fixed
width.
ditaa test.txt test.bmp
ditaa version 0.11, Copyright (C) 2004--2017 Efstathios (Stathis) Sideris Running with options: Reading file: test.txt Rendering to file: test.bmp Done in 6sec