`ig' support in all its glory. Try

  .ig ig
  asdf
  .ig
  fdsa
  ..

or

  .ig if
  asdf
  .if n \
  foo

for a laugh.  It all works.  Lots of regression tests supporting this
and documentation for the same.

6 files changed, 76 insertions, 0 deletions

diff --git a/regress/roff/ig/end0.in b/regress/roff/ig/end0.in
new file mode 100644
index 00000000..ad35726d
--- /dev/null
+++ b/regress/roff/ig/end0.in
@@ -0,0 +1,12 @@
+.Dd $Mdocdate$
+.Dt FOO 1
+.Os
+.Sh NAME
+.Nm foo
+.Nd bar
+.Sh DESCRIPTION
+a
+.ig foo
+asdf
+.foo
+b
diff --git a/regress/roff/ig/end1.in b/regress/roff/ig/end1.in
new file mode 100644
index 00000000..c1d075af
--- /dev/null
+++ b/regress/roff/ig/end1.in
@@ -0,0 +1,12 @@
+.Dd $Mdocdate$
+.Dt FOO 1
+.Os
+.Sh NAME
+.Nm foo
+.Nd bar
+.Sh DESCRIPTION
+a
+.ig foo	
+asdf
+.foo
+b
diff --git a/regress/roff/ig/redef0.in b/regress/roff/ig/redef0.in
new file mode 100644
index 00000000..4d5a7e76
--- /dev/null
+++ b/regress/roff/ig/redef0.in
@@ -0,0 +1,13 @@
+.Dd $Mdocdate$
+.Dt FOO 1
+.Os
+.Sh NAME
+.Nm foo
+.Nd bar
+.Sh DESCRIPTION
+a
+.ig if
+asdf
+.if t \
+b
+c
diff --git a/regress/roff/ig/simple0.in b/regress/roff/ig/simple0.in
new file mode 100644
index 00000000..d693ce77
--- /dev/null
+++ b/regress/roff/ig/simple0.in
@@ -0,0 +1,12 @@
+.Dd $Mdocdate$
+.Dt FOO 1
+.Os
+.Sh NAME
+.Nm foo
+.Nd bar
+.Sh DESCRIPTION
+123
+.ig
+hello
+..
+12124
diff --git a/regress/roff/ig/simple1.in b/regress/roff/ig/simple1.in
new file mode 100644
index 00000000..d693ce77
--- /dev/null
+++ b/regress/roff/ig/simple1.in
@@ -0,0 +1,12 @@
+.Dd $Mdocdate$
+.Dt FOO 1
+.Os
+.Sh NAME
+.Nm foo
+.Nd bar
+.Sh DESCRIPTION
+123
+.ig
+hello
+..
+12124
diff --git a/regress/roff/ig/simple2.in b/regress/roff/ig/simple2.in
new file mode 100644
index 00000000..4e82458c
--- /dev/null
+++ b/regress/roff/ig/simple2.in
@@ -0,0 +1,15 @@
+.Dd $Mdocdate$
+.Dt FOO 1
+.Os
+.Sh NAME
+.Nm foo
+.Nd bar
+.Sh DESCRIPTION
+123
+.ig
+hello
+.if t \{\
+hello
+.\}
+..
+12124