Add a new term_flushln() flag TERMP_BRIND (if break, then indent)

to control indentation of continuation lines in TERMP_NOBREAK mode.
In the past, this was always on; continue using it
for .Bl, .Nm, .Fn, .Fo, and .HP, but no longer for .IP and .TP.

I looked at this because sthen@ reported the issue in a manual
of a Perl module from ports, but it affects base, too: This patch
reduces groff-mandoc differences in base by more than 15%.

6 files changed, 64 insertions, 4 deletions

diff --git a/regress/usr.bin/mandoc/man/IP/Makefile b/regress/usr.bin/mandoc/man/IP/Makefile
index 13541b0eaec..a493fc0630c 100644
--- a/regress/usr.bin/mandoc/man/IP/Makefile
+++ b/regress/usr.bin/mandoc/man/IP/Makefile
@@ -1,5 +1,5 @@
-# $OpenBSD: Makefile,v 1.6 2012/07/18 16:51:50 schwarze Exp $
+# $OpenBSD: Makefile,v 1.7 2014/04/08 07:13:01 schwarze Exp $
 
-REGRESS_TARGETS = literal spacing width manyargs empty
+REGRESS_TARGETS = empty literal longhead manyargs spacing width
 
 .include <bsd.regress.mk>
diff --git a/regress/usr.bin/mandoc/man/IP/longhead.in b/regress/usr.bin/mandoc/man/IP/longhead.in
new file mode 100644
index 00000000000..f24922c0aa1
--- /dev/null
+++ b/regress/usr.bin/mandoc/man/IP/longhead.in
@@ -0,0 +1,10 @@
+.TH IP-LONGHEAD 1 "April 8, 2014" OpenBSD
+.SH NAME
+IP-longhead \- indented paragraph with a long head
+.SH DESCRIPTION
+normal text
+.IP "This indented paragraph has ridiculously long text \
+in its head, such that it doesn't even fit on the line" 6n
+paragraph body
+.PP
+normal text
diff --git a/regress/usr.bin/mandoc/man/IP/longhead.out_ascii b/regress/usr.bin/mandoc/man/IP/longhead.out_ascii
new file mode 100644
index 00000000000..edbd820ff01
--- /dev/null
+++ b/regress/usr.bin/mandoc/man/IP/longhead.out_ascii
@@ -0,0 +1,19 @@
+IP-LONGHEAD(1)             OpenBSD Reference Manual             IP-LONGHEAD(1)
+
+
+
+NNAAMMEE
+       IP-longhead - indented paragraph with a long head
+
+DDEESSCCRRIIPPTTIIOONN
+       normal text
+
+       This indented paragraph has ridiculously long text in its head, such
+       that it doesn't even fit on the line
+             paragraph body
+
+       normal text
+
+
+
+OpenBSD                          April 8, 2014                  IP-LONGHEAD(1)
diff --git a/regress/usr.bin/mandoc/man/TP/Makefile b/regress/usr.bin/mandoc/man/TP/Makefile
index fd42111dbf7..d5b74f160d1 100644
--- a/regress/usr.bin/mandoc/man/TP/Makefile
+++ b/regress/usr.bin/mandoc/man/TP/Makefile
@@ -1,5 +1,6 @@
-# $OpenBSD: Makefile,v 1.6 2014/03/08 15:50:21 schwarze Exp $
+# $OpenBSD: Makefile,v 1.7 2014/04/08 07:13:01 schwarze Exp $
 
-REGRESS_TARGETS = literal width manyargs badarg macrotag double sameline
+REGRESS_TARGETS  = badarg double literal longhead macrotag manyargs
+REGRESS_TARGETS += sameline width
 
 .include <bsd.regress.mk>
diff --git a/regress/usr.bin/mandoc/man/TP/longhead.in b/regress/usr.bin/mandoc/man/TP/longhead.in
new file mode 100644
index 00000000000..2fab0df4933
--- /dev/null
+++ b/regress/usr.bin/mandoc/man/TP/longhead.in
@@ -0,0 +1,11 @@
+.TH TP-LONGHEAD 1 "April 8, 2014" OpenBSD
+.SH NAME
+TP-longhead \- tagged paragraph with a long head
+.SH DESCRIPTION
+normal text
+.TP 6n
+.B "This tagged paragraph has ridiculously long text \
+in its head, such that it doesn't even fit on the line"
+paragraph body
+.PP
+normal text
diff --git a/regress/usr.bin/mandoc/man/TP/longhead.out_ascii b/regress/usr.bin/mandoc/man/TP/longhead.out_ascii
new file mode 100644
index 00000000000..5a519103125
--- /dev/null
+++ b/regress/usr.bin/mandoc/man/TP/longhead.out_ascii
@@ -0,0 +1,19 @@
+TP-LONGHEAD(1)             OpenBSD Reference Manual             TP-LONGHEAD(1)
+
+
+
+NNAAMMEE
+       TP-longhead - tagged paragraph with a long head
+
+DDEESSCCRRIIPPTTIIOONN
+       normal text
+
+       TThhiiss ttaaggggeedd ppaarraaggrraapphh hhaass rriiddiiccuulloouussllyy lloonngg tteexxtt iinn iittss hheeaadd,, ssuucchh tthhaatt
+       iitt ddooeessnn''tt eevveenn ffiitt oonn tthhee lliinnee
+             paragraph body
+
+       normal text
+
+
+
+OpenBSD                          April 8, 2014                  TP-LONGHEAD(1)