multiple fixes to -Tascii .HP rendering:

* do not add an excessive blank line before the block
* in literal mode, start a new line after the tag

getting this to work requires some general (print_man_node) fixes:
* in literal mode, break the output line at the end of each
input line, not just after those input lines ending in text
* but don't break it when there was no output on the line
* and adjust the margins after the .HP tag

these general fixes require an adjustment to -Tascii .TP rendering:
* set up NOBREAK mode before the body, not after the head

finally, based on all this, implement -Tman .Bl -hang in terms of .HP

9 files changed, 228 insertions, 0 deletions

diff --git a/regress/usr.bin/mandoc/man/HP/Makefile b/regress/usr.bin/mandoc/man/HP/Makefile
new file mode 100644
index 00000000000..50e5e9d8826
--- /dev/null
+++ b/regress/usr.bin/mandoc/man/HP/Makefile
@@ -0,0 +1,5 @@
+# $OpenBSD: Makefile,v 1.1 2012/07/10 19:53:12 schwarze Exp $
+
+REGRESS_TARGETS = literal spacing manyargs macrotag
+
+.include <bsd.regress.mk>
diff --git a/regress/usr.bin/mandoc/man/HP/literal.in b/regress/usr.bin/mandoc/man/HP/literal.in
new file mode 100644
index 00000000000..e7caee1cc73
--- /dev/null
+++ b/regress/usr.bin/mandoc/man/HP/literal.in
@@ -0,0 +1,26 @@
+.TH HP-LITERAL 1 "January 4, 2011" OpenBSD
+.SH NAME
+HP-literal \- hanged paragraphs in literal context
+.SH DESCRIPTION
+regular
+text
+.HP 10n
+tag
+indented
+text
+.PP
+regular
+text
+.nf
+literal
+text
+.HP 10n
+tag
+indented
+text
+.PP
+literal
+text
+.fi
+regular
+text
diff --git a/regress/usr.bin/mandoc/man/HP/literal.out_ascii b/regress/usr.bin/mandoc/man/HP/literal.out_ascii
new file mode 100644
index 00000000000..6facd371dcc
--- /dev/null
+++ b/regress/usr.bin/mandoc/man/HP/literal.out_ascii
@@ -0,0 +1,27 @@
+HP-LITERAL(1)              OpenBSD Reference Manual              HP-LITERAL(1)
+
+
+
+NNAAMMEE
+       HP-literal - hanged paragraphs in literal context
+
+DDEESSCCRRIIPPTTIIOONN
+       regular text
+
+       tag indented text
+
+       regular text
+       literal
+       text
+
+       tag
+                 indented
+                 text
+
+       literal
+       text
+       regular text
+
+
+
+OpenBSD                         January 4, 2011                  HP-LITERAL(1)
diff --git a/regress/usr.bin/mandoc/man/HP/macrotag.in b/regress/usr.bin/mandoc/man/HP/macrotag.in
new file mode 100644
index 00000000000..6582498c4df
--- /dev/null
+++ b/regress/usr.bin/mandoc/man/HP/macrotag.in
@@ -0,0 +1,13 @@
+.TH HP-MACROTAG 1 "September 20, 2011" OpenBSD
+.SH NAME
+HP-macrotag \- macro in the head of a tagged paragraph
+.SH DESCRIPTION
+regular
+text
+.HP
+.B longindent
+indented
+text
+.PP
+regular
+text
diff --git a/regress/usr.bin/mandoc/man/HP/macrotag.out_ascii b/regress/usr.bin/mandoc/man/HP/macrotag.out_ascii
new file mode 100644
index 00000000000..deb7daa9d08
--- /dev/null
+++ b/regress/usr.bin/mandoc/man/HP/macrotag.out_ascii
@@ -0,0 +1,17 @@
+HP-MACROTAG(1)             OpenBSD Reference Manual             HP-MACROTAG(1)
+
+
+
+NNAAMMEE
+       HP-macrotag - macro in the head of a tagged paragraph
+
+DDEESSCCRRIIPPTTIIOONN
+       regular text
+
+       lloonnggiinnddeenntt indented text
+
+       regular text
+
+
+
+OpenBSD                       September 20, 2011                HP-MACROTAG(1)
diff --git a/regress/usr.bin/mandoc/man/HP/manyargs.in b/regress/usr.bin/mandoc/man/HP/manyargs.in
new file mode 100644
index 00000000000..b49e6649863
--- /dev/null
+++ b/regress/usr.bin/mandoc/man/HP/manyargs.in
@@ -0,0 +1,45 @@
+.TH HP-MANYARGS 1 "January 4, 2011" OpenBSD
+.SH NAME
+HP-manyargs \- too many header args for hanged blocks
+.SH DESCRIPTION
+regular
+text
+.HP 10n
+tag1
+indented
+text
+.PP
+regular
+text
+.HP 10n tag1
+tag2
+indented
+text
+.PP
+regular
+text
+.HP 10n tag2 tag1
+tag3
+indented
+text
+.nf
+literal
+text
+.HP 10n
+tag1
+indented
+text
+.PP
+literal
+text
+.HP 10n tag1
+tag2
+indented
+text
+.PP
+literal
+text
+.HP 10n tag2 tag1
+tag3
+indented
+text
diff --git a/regress/usr.bin/mandoc/man/HP/manyargs.out_ascii b/regress/usr.bin/mandoc/man/HP/manyargs.out_ascii
new file mode 100644
index 00000000000..087ccda48f5
--- /dev/null
+++ b/regress/usr.bin/mandoc/man/HP/manyargs.out_ascii
@@ -0,0 +1,43 @@
+HP-MANYARGS(1)             OpenBSD Reference Manual             HP-MANYARGS(1)
+
+
+
+NNAAMMEE
+       HP-manyargs - too many header args for hanged blocks
+
+DDEESSCCRRIIPPTTIIOONN
+       regular text
+
+       tag1 indented text
+
+       regular text
+
+       tag2 indented text
+
+       regular text
+
+       tag3 indented text
+                 literal
+                 text
+
+       tag1
+                 indented
+                 text
+
+       literal
+       text
+
+       tag2
+                 indented
+                 text
+
+       literal
+       text
+
+       tag3
+                 indented
+                 text
+
+
+
+OpenBSD                         January 4, 2011                 HP-MANYARGS(1)
diff --git a/regress/usr.bin/mandoc/man/HP/spacing.in b/regress/usr.bin/mandoc/man/HP/spacing.in
new file mode 100644
index 00000000000..550b27fe3d5
--- /dev/null
+++ b/regress/usr.bin/mandoc/man/HP/spacing.in
@@ -0,0 +1,25 @@
+.TH HP-SPACING 1 "February 5, 2011" OpenBSD
+.SH NAME
+HP-spacing \- spacing in hanged lists
+.SH DESCRIPTION
+Normal text.
+.HP
+tag
+Indented text.
+.HP
+four
+Indented text.
+.HP
+ffive
+Indented text.
+.HP
+sixsix
+Indented text.
+.HP
+seseven
+Indented text.
+.HP
+a much longer tag
+Indented text.
+.LP
+Normal text.
diff --git a/regress/usr.bin/mandoc/man/HP/spacing.out_ascii b/regress/usr.bin/mandoc/man/HP/spacing.out_ascii
new file mode 100644
index 00000000000..0cd618e17b9
--- /dev/null
+++ b/regress/usr.bin/mandoc/man/HP/spacing.out_ascii
@@ -0,0 +1,27 @@
+HP-SPACING(1)              OpenBSD Reference Manual              HP-SPACING(1)
+
+
+
+NNAAMMEE
+       HP-spacing - spacing in hanged lists
+
+DDEESSCCRRIIPPTTIIOONN
+       Normal text.
+
+       tag Indented text.
+
+       four Indented text.
+
+       ffive Indented text.
+
+       sixsix Indented text.
+
+       seseven Indented text.
+
+       a much longer tag Indented text.
+
+       Normal text.
+
+
+
+OpenBSD                        February 5, 2011                  HP-SPACING(1)