[7994] add comment

[gavinsmith0123]

Revision: 7994
          http://svn.sv.gnu.org/viewvc/?view=rev&root=texinfo&revision=7994
Author:   gavin
Date:     2018-01-09 05:51:55 -0500 (Tue, 09 Jan 2018)
Log Message:
-----------
add comment

Modified Paths:
--------------
    trunk/ChangeLog
    trunk/doc/texinfo.tex

Modified: trunk/ChangeLog
===================================================================
--- trunk/ChangeLog     2017-12-26 20:47:56 UTC (rev 7993)
+++ trunk/ChangeLog     2018-01-09 10:51:55 UTC (rev 7994)
@@ -1,3 +1,8 @@
+2018-01-09  Gavin Smith  <address@hidden>
+
+       * doc/texinfo.tex (\assignfonts): Add a comment explaining 
+       purpose of \ifont and \syfont.
+
 2017-12-26  Gavin Smith  <address@hidden>
 
        * doc/texinfo.tex (\setupmarkupstyle): Remove conditionals used 

Modified: trunk/doc/texinfo.tex
===================================================================
--- trunk/doc/texinfo.tex       2017-12-26 20:47:56 UTC (rev 7993)
+++ trunk/doc/texinfo.tex       2018-01-09 10:51:55 UTC (rev 7994)
@@ -3,11 +3,11 @@
 % Load plain if necessary, i.e., if running under initex.
 \expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi
 %
-\def\texinfoversion{2017-12-26.21}
+\def\texinfoversion{2018-01-09.10}
 %
 % Copyright 1985, 1986, 1988, 1990, 1991, 1992, 1993, 1994, 1995,
 % 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-% 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
+% 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
 % Free Software Foundation, Inc.
 %
 % This texinfo.tex file is free software: you can redistribute it and/or
@@ -2519,6 +2519,9 @@
 % to also set the current \fam for math mode.  Our \STYLE (e.g., \rm)
 % commands hardwire \STYLEfont to set the current font.
 %
+% The fonts used for \ifont are for "math italics"  (\itfont is for italics
+% in regular text).  \syfont is also used in math mode only.
+%
 % Each font-changing command also sets the names \lsize (one size lower)
 % and \lllsize (three sizes lower).  These relative commands are used
 % in, e.g., the LaTeX logo and acronyms.