When a conditional block is closed by putting "\}" on a text line

by itself (which is somewhat unusual but not invalid; most authors
use the empty macro line ".\}" instead), agree more closely with
groff and do not produce a double space in the output.

Quirk reported by millert@.

While here, tweak the rest of the function body of roff_cond_text()
to more closely match roff_cond_sub().  The subtly different handling
could make people (including myself) wonder whether there is any
point in being different.  Testing shows there is not.

3 files changed, 30 insertions, 4 deletions

diff --git a/regress/roff/cond/close.in b/regress/roff/cond/close.in
index 6bdf3781..74b402c8 100644
--- a/regress/roff/cond/close.in
+++ b/regress/roff/cond/close.in
@@ -1,5 +1,5 @@
 .\" $OpenBSD: close.in,v 1.3 2017/07/04 14:53:26 schwarze Exp $
-.TH COND-CLOSE 1 2013-06-27
+.TH COND-CLOSE 1 "November 26, 2018"
 .SH NAME
 cond-close \- closing conditional macros
 .SH DESCRIPTION
@@ -12,5 +12,21 @@ closing after an ignored macro
 .if t \{text \}
 closing after plain text
 .PP
+.if n \{conditional content \} following words with whitespace
+.PP
+.if n \{conditional content\}following words without whitespace
+.PP
+preceding words
+.if n \{\
+standard multi-line style
+.\}
+following words
+.PP
+preceding words
+.if n \{
+non-standard multi-line style
+\}
+following words
+.PP
 .if n \{
 still open at the end of the file
diff --git a/regress/roff/cond/close.out_ascii b/regress/roff/cond/close.out_ascii
index 244d4154..d049154d 100644
--- a/regress/roff/cond/close.out_ascii
+++ b/regress/roff/cond/close.out_ascii
@@ -12,8 +12,18 @@ DDEESSCCRRIIPPTTIIOONN
 
        closing after plain text
 
+       conditional content  following words with whitespace
+
+       conditional contentfollowing words without whitespace
+
+       preceding words standard multi-line style following words
+
+       preceding words
+
+       non-standard multi-line style following words
+
        still open at the end of the file
 
 
 
-OpenBSD                           2013-06-27                     COND-CLOSE(1)
+OpenBSD                        November 26, 2018                 COND-CLOSE(1)
diff --git a/regress/roff/cond/close.out_lint b/regress/roff/cond/close.out_lint
index 4387b057..d6f52146 100644
--- a/regress/roff/cond/close.out_lint
+++ b/regress/roff/cond/close.out_lint
@@ -1,2 +1,2 @@
-mandoc: close.in:15:2: ERROR: appending missing end of block: if
-mandoc: close.in:15:9: WARNING: skipping paragraph macro: sp after PP
+mandoc: close.in:31:2: ERROR: appending missing end of block: if
+mandoc: close.in:31:9: WARNING: skipping paragraph macro: sp after PP