regress/roff/string/zerolength.in


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.TH STRING-ZEROLENGTH 1 "December 19, 2010" OpenBSD
.SH NAME
string-zerolength - handling of zero-length user-defined strings
.SH DESCRIPTION
.ds dszero "
.de dezero
..
use zero-length string:
x\*[dszero]x
.dszero
x
.PP
use zero-length macro:
x\*[dezero]x
.dezero
x