In GNU, Heirloom, and Plan 9 roff, tab positions apply to *input* lines,

not to *output* lines.  In particular, if an input line gets broken in
fill mode and a tab occurs in the second output line, it advances to a
position of at least (width of the first output line) + (width of a
space character even though this is never printed) + (width of the part
of the second output line that precedes the tab).

Implement the same logic in mandoc.

Again, do not use tabs in filled text: they have surprising effects,
including this one.

1 files changed, 1 insertions, 0 deletions

diff --git a/man_term.c b/man_term.c
index 10cac3b4..178b30e4 100644
--- a/man_term.c
+++ b/man_term.c
@@ -975,6 +975,7 @@ out:
 	    ! (p->flags & (TERMP_NOBREAK | TERMP_NONEWLINE)) &&
 	    (n->next == NULL || n->next->flags & NODE_LINE)) {
 		p->flags |= TERMP_BRNEVER | TERMP_NOSPACE;
+		p->tcol->taboff = 0;
 		if (n->string != NULL && *n->string != '\0')
 			term_flushln(p);
 		else