Prevent line breaks right before numbers. Groff does the same.

OK kristaps@.

2 files changed, 40 insertions, 36 deletions

diff --git a/att.in b/att.in
index 29ffbb33..cb3f8f16 100644
--- a/att.in
+++ b/att.in
@@ -20,18 +20,20 @@
  * isn't going to change.  The right-hand side is the formatted string.
  *
  * Be sure to escape strings.
+ * The non-breaking blanks prevent ending an output line right before
+ * a number.  Groff prevent line breaks at the same places.
  */
 
-LINE("v1",		"Version 1 AT&T UNIX")
-LINE("v2",		"Version 2 AT&T UNIX")
-LINE("v3",		"Version 3 AT&T UNIX")
-LINE("v4",		"Version 4 AT&T UNIX")
-LINE("v5",		"Version 5 AT&T UNIX")
-LINE("v6",		"Version 6 AT&T UNIX")
-LINE("v7",		"Version 7 AT&T UNIX")
-LINE("32v",		"Version 32V AT&T UNIX")
-LINE("V",		"AT&T System V UNIX")
-LINE("V.1",		"AT&T System V.1 UNIX")
-LINE("V.2",		"AT&T System V.2 UNIX")
-LINE("V.3",		"AT&T System V.3 UNIX")
-LINE("V.4",		"AT&T System V.4 UNIX")
+LINE("v1",		"Version\\~1 AT&T UNIX")
+LINE("v2",		"Version\\~2 AT&T UNIX")
+LINE("v3",		"Version\\~3 AT&T UNIX")
+LINE("v4",		"Version\\~4 AT&T UNIX")
+LINE("v5",		"Version\\~5 AT&T UNIX")
+LINE("v6",		"Version\\~6 AT&T UNIX")
+LINE("v7",		"Version\\~7 AT&T UNIX")
+LINE("32v",		"Version\\~32V AT&T UNIX")
+LINE("V",		"AT&T System\\~V UNIX")
+LINE("V.1",		"AT&T System\\~V Release\\~1 UNIX")
+LINE("V.2",		"AT&T System\\~V Release\\~2 UNIX")
+LINE("V.3",		"AT&T System\\~V Release\\~3 UNIX")
+LINE("V.4",		"AT&T System\\~V Release\\~4 UNIX")
diff --git a/st.in b/st.in
index 2c8bb69c..0e303789 100644
--- a/st.in
+++ b/st.in
@@ -22,6 +22,8 @@
  * the formatted output string.
  *
  * Be sure to escape strings.
+ * The non-breaking blanks prevent ending an output line right before 
+ * a number.  Groff prevent line breaks at the same places.
  *
  * REMEMBER TO ADD NEW STANDARDS TO MDOC.7!
  */
@@ -43,32 +45,32 @@ LINE("-p1003.2a-92",	"IEEE Std 1003.2a-1992 (\\(lqPOSIX.2\\(rq)")
 LINE("-p1387.2-95",	"IEEE Std 1387.2-1995 (\\(lqPOSIX.7.2\\(rq)")
 LINE("-p1003.2",	"IEEE Std 1003.2 (\\(lqPOSIX.2\\(rq)")
 LINE("-p1387.2",	"IEEE Std 1387.2 (\\(lqPOSIX.7.2\\(rq)")
-LINE("-isoC",		"ISO/IEC 9899:1990 (\\(lqISO C90\\(rq)")
-LINE("-isoC-90",	"ISO/IEC 9899:1990 (\\(lqISO C90\\(rq)")
-LINE("-isoC-amd1",	"ISO/IEC 9899/AMD1:1995 (\\(lqISO C90\\(rq)")
-LINE("-isoC-tcor1",	"ISO/IEC 9899/TCOR1:1994 (\\(lqISO C90\\(rq)")
-LINE("-isoC-tcor2",	"ISO/IEC 9899/TCOR2:1995 (\\(lqISO C90\\(rq)")
-LINE("-isoC-99",	"ISO/IEC 9899:1999 (\\(lqISO C99\\(rq)")
+LINE("-isoC",		"ISO/IEC 9899:1990 (\\(lqISO\\~C90\\(rq)")
+LINE("-isoC-90",	"ISO/IEC 9899:1990 (\\(lqISO\\~C90\\(rq)")
+LINE("-isoC-amd1",	"ISO/IEC 9899/AMD1:1995 (\\(lqISO\\~C90, Amendment 1\\(rq)")
+LINE("-isoC-tcor1",	"ISO/IEC 9899/TCOR1:1994 (\\(lqISO\\~C90, Technical Corrigendum 1\\(rq)")
+LINE("-isoC-tcor2",	"ISO/IEC 9899/TCOR2:1995 (\\(lqISO\\~C90, Technical Corrigendum 2\\(rq)")
+LINE("-isoC-99",	"ISO/IEC 9899:1999 (\\(lqISO\\~C99\\(rq)")
 LINE("-iso9945-1-90",	"ISO/IEC 9945-1:1990 (\\(lqPOSIX.1\\(rq)")
 LINE("-iso9945-1-96",	"ISO/IEC 9945-1:1996 (\\(lqPOSIX.1\\(rq)")
 LINE("-iso9945-2-93",	"ISO/IEC 9945-2:1993 (\\(lqPOSIX.2\\(rq)")
-LINE("-ansiC",		"ANSI X3.159-1989 (\\(lqANSI C\\(rq)")
-LINE("-ansiC-89",	"ANSI X3.159-1989 (\\(lqANSI C\\(rq)")
-LINE("-ansiC-99",	"ANSI/ISO/IEC 9899-1999 (\\(lqANSI C99\\(rq)")
+LINE("-ansiC",		"ANSI X3.159-1989 (\\(lqANSI\\~C89\\(rq)")
+LINE("-ansiC-89",	"ANSI X3.159-1989 (\\(lqANSI\\~C89\\(rq)")
+LINE("-ansiC-99",	"ANSI/ISO/IEC 9899-1999 (\\(lqANSI\\~C99\\(rq)")
 LINE("-ieee754",	"IEEE Std 754-1985")
 LINE("-iso8802-3",	"ISO 8802-3: 1989")
 LINE("-ieee1275-94",	"IEEE Std 1275-1994 (\\(lqOpen Firmware\\(rq)")
-LINE("-xpg3",		"X/Open Portability Guide Issue 3 (\\(lqXPG3\\(rq)")
-LINE("-xpg4",		"X/Open Portability Guide Issue 4 (\\(lqXPG4\\(rq)")
-LINE("-xpg4.2",		"X/Open Portability Guide Issue 4.2 (\\(lqXPG4.2\\(rq)")
-LINE("-xpg4.3",		"X/Open Portability Guide Issue 4.3 (\\(lqXPG4.3\\(rq)")
-LINE("-xbd5",		"X/Open System Interface Definitions Issue 5 (\\(lqXBD5\\(rq)")
-LINE("-xcu5",		"X/Open Commands and Utilities Issue 5 (\\(lqXCU5\\(rq)")
-LINE("-xsh5",		"X/Open System Interfaces and Headers Issue 5 (\\(lqXSH5\\(rq)")
-LINE("-xns5",		"X/Open Networking Services Issue 5 (\\(lqXNS5\\(rq)")
-LINE("-xns5.2",		"X/Open Networking Services Issue 5.2 (\\(lqXNS5.2\\(rq)")
-LINE("-xns5.2d2.0",	"X/Open Networking Services Issue 5.2 Draft 2.0 (\\(lqXNS5.2D2.0\\(rq)")
-LINE("-xcurses4.2",	"X/Open Curses Issue 4 Version 2 (\\(lqXCURSES4.2\\(rq)")
-LINE("-susv2",		"Version 2 of the Single UNIX Specification")
-LINE("-susv3",		"Version 3 of the Single UNIX Specification")
-LINE("-svid4",		"System V Interface Definition, Fourth Edition (\\(lqSVID4\\(rq)")
+LINE("-xpg3",		"X/Open Portability Guide Issue\\~3 (\\(lqXPG3\\(rq)")
+LINE("-xpg4",		"X/Open Portability Guide Issue\\~4 (\\(lqXPG4\\(rq)")
+LINE("-xpg4.2",		"X/Open Portability Guide Issue\\~4, Version\\~2 (\\(lqXPG4.2\\(rq)")
+LINE("-xpg4.3",		"X/Open Portability Guide Issue\\~4, Version\\~3 (\\(lqXPG4.3\\(rq)")
+LINE("-xbd5",		"X/Open System Interface Definitions Issue\\~5 (\\(lqXBD5\\(rq)")
+LINE("-xcu5",		"X/Open Commands and Utilities Issue\\~5 (\\(lqXCU5\\(rq)")
+LINE("-xsh5",		"X/Open System Interfaces and Headers Issue\\~5 (\\(lqXSH5\\(rq)")
+LINE("-xns5",		"X/Open Networking Services Issue\\~5 (\\(lqXNS5\\(rq)")
+LINE("-xns5.2",		"X/Open Networking Services Issue\\~5.2 (\\(lqXNS5.2\\(rq)")
+LINE("-xns5.2d2.0",	"X/Open Networking Services Issue\\~5.2 Draft\\~2.0 (\\(lqXNS5.2D2.0\\(rq)")
+LINE("-xcurses4.2",	"X/Open Curses Issue\\~4, Version\\~2 (\\(lqXCURSES4.2\\(rq)")
+LINE("-susv2",		"Version\\~2 of the Single UNIX Specification")
+LINE("-susv3",		"Version\\~3 of the Single UNIX Specification")
+LINE("-svid4",		"System\\~V Interface Definition, Fourth Edition (\\(lqSVID4\\(rq)")