.\" tmac.hyper: These macros implement hypertext links in troff, that is,
.\" they basically do nothing.  See scm/misc/hyper.scm for the macros as
.\" implemented by unroff.
.
.ds pk tmac.hyper
.
.de Er
.tm \\*(pk: \\$1 \\$2 \\$3 \\$4 \\$5 \\$6 \\$7 \\$8 \\$9
..
.
.de Ha
.if !\\n(.$=2 .Er too few arguments for .Ha
\\$2\c
..
.
.de Hr
.if \\n(.$<1 .Er too few arguments for .Hr
.if !'\\$1'-symbolic' .if !'\\$1'-url' \\$1
..