Re: [Groff] Question about .substring

[Tadziu Hoffmann]

> Hello: this is a bug?
[snip]

Where do you see a bug?

man 7 groff:

  .substring xx n1 n2
    Replace the string named xx with the substring defined by
    the indices n1 and n2.


groff:

    .ds x abc
    .substring x 0 1
    .tm \*x
--> ab
    .ds x abc
    .substring x 0 0
    .tm \*x
--> a