Micro-utility for use in acme to block-indent or un-indent lines of text. Cribbed from Russ Cox's utility of the same name. Written in Go.
Usage:
Pipe in data, calling the program as either a or a+ to add one tab character to the front of each linepassed. Outputs to stdout.
Pipe to a- to remove one tab character from the front of each line instead, if there is one.
Provided as public domain software.