dagmatic is a tool to parse a custom ASCII-art representation of Mercurial repositories and render them in a variety of forms (none implemented yet, but SVG is the primary goal).
The input language looks like this:
a-b-c \ d-e
- a is the parent of b
- b is the parent of c and d
- d is the parent of e
History goes left-to-right and top-to-bottom. Currently, there are a few ways to express a parent-child relationship: horizontal (-), vertical (|) lower diagonal (\), upper diagonal (/). This might change in future.
dagmatic also lets you express changeset obsolescence (ie. precursor/successor relationships):
a-b-c \: : d-e
Here, d is the successor of b and e is the successor of c. You can also specify diagonal markers:
a-b-c \:> d
Now, d is the successor of both b and c. The current ways to express a precursor-successor relationship are: horizontal (.), vertical (:), lower diagonal (<) and upper diagonal (>) (think of just the lower part of the angle bracket). This might change in the future.
dagmatic will also let you describe a series of DAGs using a transition marker:
a-b || hg commit a-b-c
Too early to document. See the source code.
- use visitor pattern insteatd of tikz() method
- use state pattern for parsing
Written by Greg Ward and Sean Farley, based on an idea by Matt Mackall.
The canonical source repository is
Copyright © 2015, Greg Ward and Sean Farley. All rights reserved.
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