zzdot

Overview ¶

The zzdot command parses a glob pattern, and prints the underlying state machine in GraphViz DOT language.

Example:

$ zzdot '**/*_test.go'
digraph {
	rankdir=LR;
	comment="input pattern: \"**/*_test.go\" parser config: {allowEscaping:true allowQuestion:true allowStar:true allowDoubleStar:true allowAlternation:true allowCharClass:true swapSlashes:false expandTilde:true}";
	initial [label="", style=invis];
	initial -> state_0x140000be020 [label=""];
	state_0x140000be020 [label="", shape=circle, style=filled, fillcolor=white];
	state_0x140000be020 -> state_0x140000be040 [label="<nil>"];
	state_0x140000be020 -> state_0x140000be080 [label="<nil>"];
	state_0x140000be040 [label="", shape=circle, style=filled, fillcolor=white];
	state_0x140000be040 -> state_0x140000be040 [label="*"];
	state_0x140000be040 -> state_0x140000be0c0 [label="_"];
	state_0x140000be080 [label="", shape=circle, style=filled, fillcolor=white];
	state_0x140000be080 -> state_0x140000be080 [label="**"];
	state_0x140000be080 -> state_0x140000be040 [label="/"];
	state_0x140000be0c0 [label="", shape=circle, style=filled, fillcolor=white];
	state_0x140000be0c0 -> state_0x140000be0e0 [label="t"];
	state_0x140000be0e0 [label="", shape=circle, style=filled, fillcolor=white];
	state_0x140000be0e0 -> state_0x140000be100 [label="e"];
	state_0x140000be100 [label="", shape=circle, style=filled, fillcolor=white];
	state_0x140000be100 -> state_0x140000be120 [label="s"];
	state_0x140000be120 [label="", shape=circle, style=filled, fillcolor=white];
	state_0x140000be120 -> state_0x140000be140 [label="t"];
	state_0x140000be140 [label="", shape=circle, style=filled, fillcolor=white];
	state_0x140000be140 -> state_0x140000be160 [label="."];
	state_0x140000be160 [label="", shape=circle, style=filled, fillcolor=white];
	state_0x140000be160 -> state_0x140000be180 [label="g"];
	state_0x140000be180 [label="", shape=circle, style=filled, fillcolor=white];
	state_0x140000be180 -> state_0x140000be1a0 [label="o"];
	state_0x140000be1a0 [label="", shape=doublecircle, style=filled, fillcolor=white];
}