Date: Tue, 26 Oct 1999 13:28:01 +1000 From: Peter Jeremy <jeremyp@gsmx07.alcatel.com.au> To: FreeBSD-gnats-submit@freebsd.org Subject: docs/14530: Printed manual pages have extraneous blank first page Message-ID: <99Oct26.132312est.40340@border.alcanet.com.au>
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>Number: 14530
>Category: docs
>Synopsis: Printed manual pages have extraneous blank first page
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-doc
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Mon Oct 25 20:30:00 PDT 1999
>Closed-Date:
>Last-Modified:
>Originator: Peter Jeremy
>Release: FreeBSD 4.0-CURRENT i386
>Organization:
Alcatel Australia Limited
>Environment:
cvs-cur 5781, but this problem also exists in -stable
>Description:
Printed postscript manual pages start with an extraneous blank
page.
>How-To-Repeat:
gzcat /usr/share/man/man3/cam.3.gz | groff -man | lp
(or send output to ghostscript or similar).
The first page is blank except for the footer line and the
actual manual page begins on page 2.
>Fix:
gtroff appears to generate extraneous blank output for lines like
. el .ie "\\$2"3.0" \c
This causes the `.Os FreeBSD 3.0' line in the above example (and
similar lines in many other FreeBSD man pages) to begin a page,
which is then flushed by one of the later directives (probably
either .Dt or .Sh). The following patch changes the logic from
if (foo1) { } else if (foo2) { } ...
to
if (!foo1) if (!foo2) ...
avoiding the need to insert an empty `then' clause.
The code for the Fx macro is similar and an equivalent patch
is appended, though this latter patch hasn't been verified.
A positive side-effect of the patch is to remove a number of
"unbalanced .el request" warnings if -ww is enabled.
Index: doc-common
===================================================================
RCS file: /home/CVSROOT/src/contrib/groff/tmac/doc-common,v
retrieving revision 1.17
diff -u -r1.17 doc-common
--- doc-common 1999/09/22 21:38:40 1.17
+++ doc-common 1999/10/26 03:03:20
@@ -230,31 +230,31 @@
.\}
.if "\\$1"FreeBSD" \{\
. if "\\$2"2" .ds oS FreeBSD 2.0
-. ie \\n(.$==1 \c
-. el .ie "\\$2"1.0" \c
-. el .ie "\\$2"1.1" \c
-. el .ie "\\$2"1.1.5" \c
-. el .ie "\\$2"1.1.5.1" \c
-. el .ie "\\$2"2" \c
-. el .ie "\\$2"2.0" \c
-. el .ie "\\$2"2.0.5" \c
-. el .ie "\\$2"2.1" \c
-. el .ie "\\$2"2.1.5" \c
-. el .ie "\\$2"2.1.6" \c
-. el .ie "\\$2"2.1.7" \c
-. el .ie "\\$2"2.2" \c
-. el .ie "\\$2"2.2.1" \c
-. el .ie "\\$2"2.2.2" \c
-. el .ie "\\$2"2.2.5" \c
-. el .ie "\\$2"2.2.6" \c
-. el .ie "\\$2"2.2.7" \c
-. el .ie "\\$2"2.2.8" \c
-. el .ie "\\$2"3.0" \c
-. el .ie "\\$2"3.1" \c
-. el .ie "\\$2"3.2" \c
-. el .ie "\\$2"3.3" \c
-. el .ie "\\$2"4.0" \c
-. el .tm Unknown FreeBSD version ``\\$2'' at line \\n(c.
+. if !\\n(.$==1 \
+. if !"\\$2"1.0" \
+. if !"\\$2"1.1" \
+. if !"\\$2"1.1.5" \
+. if !"\\$2"1.1.5.1" \
+. if !"\\$2"2" \
+. if !"\\$2"2.0" \
+. if !"\\$2"2.0.5" \
+. if !"\\$2"2.1" \
+. if !"\\$2"2.1.5" \
+. if !"\\$2"2.1.6" \
+. if !"\\$2"2.1.7" \
+. if !"\\$2"2.2" \
+. if !"\\$2"2.2.1" \
+. if !"\\$2"2.2.2" \
+. if !"\\$2"2.2.5" \
+. if !"\\$2"2.2.6" \
+. if !"\\$2"2.2.7" \
+. if !"\\$2"2.2.8" \
+. if !"\\$2"3.0" \
+. if !"\\$2"3.1" \
+. if !"\\$2"3.2" \
+. if !"\\$2"3.3" \
+. if !"\\$2"4.0" \
+. tm Unknown FreeBSD version ``\\$2'' at line \\n(c.
.\}
.if "\\*(oS"Null" \{\
. ds oS \&\\$1
Index: doc-syms
===================================================================
RCS file: /home/CVSROOT/src/contrib/groff/tmac/doc-syms,v
retrieving revision 1.22
diff -u -r1.22 doc-syms
--- doc-syms 1999/09/07 10:33:34 1.22
+++ doc-syms 1999/10/26 03:02:39
@@ -160,29 +160,29 @@
.ds aa \&\f\\n(cF\s\\n(cZ
.ds ab \& \&
. ie \\n(.$==0 .rm ab
-.el .ie "\\$1"1.0" \c
-.el .ie "\\$1"1.1" \c
-.el .ie "\\$1"1.1.5" \c
-.el .ie "\\$1"1.1.5.1" \c
-.el .ie "\\$1"2.0" \c
-.el .ie "\\$1"2.0.5" \c
-.el .ie "\\$1"2.1" \c
-.el .ie "\\$1"2.1.5" \c
-.el .ie "\\$1"2.1.6" \c
-.el .ie "\\$1"2.1.7" \c
-.el .ie "\\$1"2.2" \c
-.el .ie "\\$1"2.2.1" \c
-.el .ie "\\$1"2.2.2" \c
-.el .ie "\\$1"2.2.5" \c
-.el .ie "\\$1"2.2.6" \c
-.el .ie "\\$1"2.2.7" \c
-.el .ie "\\$1"2.2.8" \c
-.el .ie "\\$1"3.0" \c
-.el .ie "\\$1"3.1" \c
-.el .ie "\\$1"3.2" \c
-.el .ie "\\$1"3.3" \c
-.el .ie "\\$1"4.0" \c
-.el .ie "\\$1"," .rm ab \" Allow ".Fx ,"
+.el .if !"\\$1"1.0" \
+. if !"\\$1"1.1" \
+. if !"\\$1"1.1.5" \
+. if !"\\$1"1.1.5.1" \
+. if !"\\$1"2.0" \
+. if !"\\$1"2.0.5" \
+. if !"\\$1"2.1" \
+. if !"\\$1"2.1.5" \
+. if !"\\$1"2.1.6" \
+. if !"\\$1"2.1.7" \
+. if !"\\$1"2.2" \
+. if !"\\$1"2.2.1" \
+. if !"\\$1"2.2.2" \
+. if !"\\$1"2.2.5" \
+. if !"\\$1"2.2.6" \
+. if !"\\$1"2.2.7" \
+. if !"\\$1"2.2.8" \
+. if !"\\$1"3.0" \
+. if !"\\$1"3.1" \
+. if !"\\$1"3.2" \
+. if !"\\$1"3.3" \
+. if !"\\$1"4.0" \
+. ie "\\$1"," .rm ab \" Allow ".Fx ,"
.el .ie "\\$1"." .rm ab \" Allow ".Fx ."
.el .tm Unknown FreeBSD version ``\\$1'' at line \\n(c.
\&\\*(tNFreeBSD\\*(aa\\*(ab\\$1\\$2
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