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+Received: from robin by clan.nott.ac.uk id aa00461; 27 Mar 89 3:56 PST
+Received: from nss.cs.ucl.ac.uk by much.Cs.Nott.AC.UK id aa12159;
+ 25 Mar 89 3:39 GMT
+Received: from math.ams.com by NSS.Cs.Ucl.AC.UK via Satnet with SMTP
+ id aa06298; 24 Mar 89 21:28 GMT
+Date: Tue 21 Mar 89 08:39:08-EST
+From: bbeeton <BNB@math.ams.com>
+Subject: Details of TeX 2.96-2.98 changes; SYMBOL.MF
+To: TeX-implementors@math.ams.com
+Message-ID: <606490748.0.BNB@VAX02.AMS.COM>
+Mail-System-Version: <VAX-MM(229)+TOPSLIB(132)+PONY(205)@VAX02.AMS.COM>
+Status: OR
+
+Date: 17 Mar 89 Message No: 014
+
+To: TeX implementors and distributors
+
+From: Barbara Beeton
+
+Subject: Details of TeX 2.96-2.98 changes; SYMBOL.MF
+
+
+Message #13 informed you that TeX bug fixes had brought the version
+up to 2.98. The details of these changes are below, in a single
+difference list between the WEB files for 2.95 [sic] and 2.98.
+The relevant addenda to TeX82.BUG and ERRATA.TeX follow.
+
+The difference list was generated on a VAX under VMS, and the format
+of the errata changes is also different from what I usually send.
+I have been unable to establish a good enough connection to Score,
+where the distribution versions of the files reside, to obtain full
+copies of versions after 2.96, and have had to reconstruct the latest
+version from partial difference lists. I have done this very carefully,
+and believe the lists here to be true and complete, but will verify
+that as soon as possible after contact with Score has been
+re-established. I realize that some of the lines in the difference
+list are longer than 80 characters; the conventions of the VMS file
+comparison are different from those under TOPS-20. If any problems
+occur in transmission, please let me know, and I will try to generate
+a copy in the other format.
+
+I know that it is impossible to validate these changes in your
+implementations without a current set of TRIP files. I will try to make
+obtaining and sending them my highest priority after meeting a couple
+of deadlines that the Math Society finds important. Thank you for
+your patience.
+
+A small change has been made to the file SYMBOL.MF. It affects only the
+labels on proof output; it should have no effect on .TFM or raster files.
+Details are listed below.
+
+
+########################################################################
+
+Differences between TEX.WEB 2.95 and 2.98
+
+************
+File SYSA:[TEX.NEW]TEX-295.WEB;1
+ 33
+ 34 % A reward of $81.92 will be paid to the first finder of any remaining bug.
+ 35 % (This amount will double again in 1989.)
+ 36
+******
+File SYSA:[TEX.NEW]TEX-298.WEB;2
+ 33 % Version 2.96 corrects bug in "Infinite shrinkage" recovery (January 1989).
+ 34 % Version 2.97 corrects blunder in creating 2.95 (February 1989).
+ 35 % Version 2.98 omits save_for_after at outer level (March 1989).
+ 36
+ 37 % A reward of $163.84 will be paid to the first finder of any remaining bug.
+ 38 % (This amount will double again in 1990.)
+ 39
+************
+************
+File SYSA:[TEX.NEW]TEX-295.WEB;1
+ 173 @d banner=='This is TeX, Version 2.95' {printed when \TeX\ starts}
+ 174
+******
+File SYSA:[TEX.NEW]TEX-298.WEB;2
+ 176 @d banner=='This is TeX, Version 2.98' {printed when \TeX\ starts}
+ 177
+************
+************
+File SYSA:[TEX.NEW]TEX-295.WEB;1
+ 1641 if not input_ln(term_in,true) then t_open_in;
+ 1642 @.End of file on the terminal@>
+******
+File SYSA:[TEX.NEW]TEX-298.WEB;2
+ 1644 if not input_ln(term_in,true) then fatal_error("End of file on the terminal!");
+ 1645 @.End of file on the terminal@>
+************
+************
+File SYSA:[TEX.NEW]TEX-295.WEB;1
+ 5871 begin check_full_save_stack;
+ 5872 save_type(save_ptr):=insert_token; save_level(save_ptr):=level_zero;
+ 5873 save_index(save_ptr):=t; incr(save_ptr);
+ 5874 end;
+******
+File SYSA:[TEX.NEW]TEX-298.WEB;2
+ 5874 begin if cur_level>level_one then
+ 5875 begin check_full_save_stack;
+ 5876 save_type(save_ptr):=insert_token; save_level(save_ptr):=level_zero;
+ 5877 save_index(save_ptr):=t; incr(save_ptr);
+ 5878 end;
+ 5879 end;
+************
+************
+File SYSA:[TEX.NEW]TEX-295.WEB;1
+18294 glue_ptr(p):=r;
+18295 end;
+******
+File SYSA:[TEX.NEW]TEX-298.WEB;2
+18299 glue_ptr(p):=r; q:=r;
+18300 end;
+************
+************
+File SYSA:[TEX.NEW]TEX-295.WEB;1
+18775 q:=new_skip_param(top_skip_code); link(q):=p; {now |temp_ptr=glue_ptr(q)|}
+18776 if width(temp_ptr)>height(p) then width(temp_ptr):=width(temp_ptr)-height(p)
+******
+File SYSA:[TEX.NEW]TEX-298.WEB;2
+18780 q:=new_skip_param(top_skip_code); {now |temp_ptr=glue_ptr(q)|}
+18781 if width(temp_ptr)>height(p) then width(temp_ptr):=width(temp_ptr)-height(p)
+************
+************
+File SYSA:[TEX.NEW]TEX-295.WEB;1
+18810 glue_ptr(p):=r;
+18811 end;
+******
+File SYSA:[TEX.NEW]TEX-298.WEB;2
+18815 glue_ptr(p):=r; q:=r;
+18816 end;
+************
+
+########################################################################
+
+Additions to TEX82.BUG
+
+350. Forgotten update in error recovery (Breitenlohner, 20 Jan 89)
+@x module 976
+ glue_ptr(p):=r;
+@y
+ glue_ptr(p):=r; q:=r;
+@z
+@x module 1004
+ glue_ptr(p):=r;
+@y
+ glue_ptr(p):=r; q:=r;
+@z
+
+351. Avoid error \aftergroup\relax\dump (Mittelbach&Schoepf, 17 Feb 89)
+@x module 280
+begin check_full_save_stack;
+save_type(save_ptr):=insert_token; save_level(save_ptr):=level_zero;
+save_index(save_ptr):=t; incr(save_ptr);
+@y
+begin if cur_level>level_one then
+ begin check_full_save_stack;
+ save_type(save_ptr):=insert_token; save_level(save_ptr):=level_zero;
+ save_index(save_ptr):=t; incr(save_ptr);
+ end;
+@z
+
+352. (I sincerely hope that there won't be any more)
+
+
+########################################################################
+
+Extracts from ERRATA.TeX (additions and changes with context)
+
+********** new
+\bugonpage A318, line 19 (3/3/89)
+
+\ninepoint
+|\def\clearnotenumber{\notenumber=0\relax}|
+
+\bugonpage A326, line 12 (12/12/87)
+***************
+
+********** change
+\bugonpage B2, line 32 (3/2/89)
+
+\ninepoint\noindent\hskip10pt
+{\bf define} $\\{banner}\equiv\hbox{\tt\char'23}$%
+{\tt This\]is\]TeX,\]Version\]2.98\char'23}\quad
+$\{\,$printed when \TeX\ starts$\,\}$
+***************
+
+********** new
+\bugonpage B118, lines 2--4 (3/2/89)
+
+\ninepoint\noindent\hskip10pt
+{\bf begin if\/} $\\{cur\_level}>\\{level\_one}$ {\bf then}\par
+\noindent\hskip20pt{\bf begin} \\{check\_full\_save\_stack}; \
+ $\\{save\_type}(\\{save\_ptr})\gets\\{insert\_token};\par
+\noindent\hskip20pt$\\{save\_level}(\\{save\_ptr})\gets\\{level\_zero}$; \
+ $\\{save\_index}(\\{save\_ptr})\gets t$; \ \\{incr}(\\{save\_ptr});\par
+\noindent\hskip20pt{\bf end};
+
+\bugonpage B141, line 19 (4/28/88)
+***************
+
+********** new
+\bugonpage B406, line 9 from the bottom (1/23/89)
+
+\ninepoint\noindent\kern30pt
+$\\{shrink\_order}(r)\gets\\{normal}$; \ $\\{delete\_glue\_ref}(q)$; \
+$\\{glue\_ptr}(p)\gets r$; \ $q\gets r$;
+
+\bugonpage B417, line 10 (1/23/89)
+
+\ninepoint\noindent\kern10pt
+$q\gets\\{new\_skip\_param}(\\{top\_skip\_code)$; \quad
+$\{\,$now $\\{temp\_ptr}=\\{glue\_ptr}(q)\,\}$
+
+\bugonpage B418, line 14 (1/23/89)
+
+\ninepoint\noindent\kern30pt
+$\\{shrink\_order}(r)\gets\\{normal}$; \ $\\{delete\_glue\_ref}(q)$; \
+$\\{glue\_ptr}(p)\gets r$; \ $q\gets r$;
+
+\bugonpage B507, line 13 (12/14/88)
+***************
+
+********** new
+\bugonpage C248, line 21 becomes two lines (1/24/89)
+
+\ninepoint\noindent
+which might not
+be numerically stable in the presence of rounding errors.)
+Another case, not really desirable, is $\\{left\_jut}=\\{right\_jut}=0$.
+
+\bugonpage C262, line 15 (12/23/88)
+***************
+
+********** new
+\bugonpage E333, lines 9--11 (1/9/89)
+
+\ninepoint\noindent
+$\\{lft}\,x_{1l}={\rm hround}(2.5u-.5\\{mfudged.stem})$; \
+ $x_{1l}=x_{1'l}=x_{2l}=x_{2'l}$;\par\noindent
+$\\{lft}\,x_{3l}={\rm hround}(.5w-.5\\{mfudged.stem})$; \
+ $x_5-x_3=x_3-x_1$;\par
+\line{{\bf if\/} not \\{monospace}:
+ $r:={\rm hround}(x_5+x_1)+r-w$; {\bf fi}\hfill
+ \% change width for better fit}
+
+\bugonpage E353, lines 38--39 (8/12/87)
+***************
+
+********** new
+\bugonpage E515, line 21 (1/23/89)
+\ninepoint\noindent
+{\bf labels}$(5,6)$; \ \\{zero\_width}; \ {\bf endchar\/};
+\smallskip\noindent[Also put labels `{\tt5}' and `{\tt6}' on the
+upper right figure, page E514.]
+
+\bugonpage E521, lines 4 and 14 (12/12/88)
+***************
+
+
+########################################################################
+
+Changes to SYMBOL.MF
+
+;COMPARISON OF PS:<TEX.CM>SYMBOL.MF.8 AND PS:<TEX.CM>SYMBOL.MF.9
+;OPTIONS ARE /E /3
+
+**** FILE PS:<TEX.CM>SYMBOL.MF.8, 1-518 (22010)
+labels(1,2); zero_width; endchar;
+cmchar "Maps-to relation";
+**** FILE PS:<TEX.CM>SYMBOL.MF.9, 1-518 (22010)
+labels(5,6); zero_width; endchar;
+cmchar "Maps-to relation";
+***************
+
+
+########################################################################
+
+
+[ end of message 014 ]
+-------