jos@idca.tds.PHILIPS.nl (Jos Vos) (10/04/88)
Can anybody give me some suggestions about the two-letter fontnames for [di]troff that I should assign to the 35 built-in fonts of the Apple LaserWriter IINTX? Of course I can define some (sometimes even reasonable) names, but I want to use standards as much as possible. -- -- ###### Jos Vos ###### Internet jos@idca.tds.philips.nl ###### -- ###### ###### UUCP ...!mcvax!philapd!jos ######
csch@tmpmbx.UUCP (Clemens Schrimpe) (10/08/88)
jos@idca.tds.PHILIPS.nl (Jos Vos) writes:
<> Can anybody give me some suggestions about the two-letter fontnames for
<> [di]troff that I should assign to the 35 built-in fonts of the Apple
<> LaserWriter IINTX? Of course I can define some (sometimes even reasonable)
<> names, but I want to use standards as much as possible.
Great idea!
We use the EROFF-package from ELAN Computer Group Inc.
It works PRETTY WELL from the first minute!
The have a manual-page (psfonts.5), where I found the following:
(edited for brevity)
\f(ZD$\fP--------------------------- snip ----------------------------------
Standard Fonts
R Times-Roman ABC abc 123
I Times-Italic
B Times-Bold
BI Times-BoldItalic
H Helvetica
HI Helvetica-Oblique
HB Helvetica-Bold
HX Helvetica-BoldOblique
CW Courier (Constant width)
CI Courier-Oblique
CB Courier-Bold
CX Courier-BoldOblique
S Symbol
Additional Fonts
PR Palatino-Roman
PI Palatino-Italic
PB Palatino-Bold
PX Palatino-BoldItalic
A AvantGarde-Book
AI AvantGarde-BookOblique
AB AvantGarde-Demi
AX AvantGarde-DemiOblique
Z Bookman-Light
ZI Bookman-LightItalic
ZB Bookman-Demi
ZX Bookman-DemiItalic
N Helvetica-Narrow
NI Helvetica-Narrow-Oblique
NB Helvetica-Narrow-Bold
NX Helvetica-Narrow-BoldOblique
ZC ZapfChancery-MediumItalic
ZD ZapfDingbats
X NewCenturySchlbk-Roman
XI NewCenturySchlbk-Italic
XB NewCenturySchlbk-Bold
XX NewCenturySchlbk-BoldItalic
----------------------------- snip again -----------------------------
I think they are all reasonable :-)
Clemens Schrimpe, netmbx Berlin
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X.25: 2624 53000 43106 login: chat or login: mailstephenf@softway.oz (Stephen Frede) (10/12/88)
In article <570@ssp15.idca.tds.philips.nl> jos@idca.tds.PHILIPS.nl (Jos Vos) writes: > Can anybody give me some suggestions about the two-letter fontnames for > [di]troff that I should assign to the 35 built-in fonts of the Apple > LaserWriter IINTX? Of course I can define some (sometimes even reasonable) > names, but I want to use standards as much as possible. A suggestion was posted to the net some time ago for a naming philosophy. This was basically to choose a 2-character name for a font family, and then use upper and lower case variations to represent different members of the family. The original proposal used both letters lowercase to indicate the standard (non-bold, non-italic) member of the family. Unfortunately, the vast majority of fonts already in use are all uppercase for the standard member. So my variation is to use a lowercase initial letter to indicate italic (or oblique) and a lowercase second letter to indicate bold. The following is a copy (more or less) of the FONTMAP file distributed with Softway's commercial version (dpscript) of the ditroff->postscript translator (tpscript) that was posted to the net (both a long time ago by me, and more recently by someone else). This file may of course be edited by the user of the software, but this is the default and indicates most of what I've discovered and recommend for font names. I'd love to see some sort of a standard, and look forward to seeing what other people use, and any comments anyone may have. # This file instructs dpscript (the troff back end filter for PostScript) # on where to find a particular font that troff asks for. # # Format is 3 columns: # # troff-font-name font-source font-or-file-name # # where # troff-font-name is the 1 or 2 character troff font name # font-source is one of: # resident The font is built-into the printer # postscript User-defined postscript font # raster DWB raster (bitmap) font # vfont BSD vfont raster (similar to above) # synonym Another name for some other font # outline Outline form of a resident font # (may also work with Adobe fonts) # # font-or-file-name is a PostScript font name for resident fonts, # a filename containing the data for user-defined, # raster and vfont fonts, # and a troff font name for synonyms # # The convention I have used for naming font styles is to choose a unique # two character (upper case) name for the base family, and then use # variations in the case of the name to indicate alternative styles # as shown: # AA Roman # Aa Bold (or Demi, etc.) # aA Italic (or Oblique) # aa Bold Italic # Font families that have more than these four style variations # (eg includes Bold and Very Bold), are rare and in these cases, we just # have to make up another name. Also, try to avoid family base names ending # in 'O' as I have used names ending in 'o' for the outline fonts. # # Also, remember that P is an illegal troff font name (means Previous) # The following is correct for the Apple LaserWriter and most other # PostScript devices developed by Adobe. # If your device does not have these fonts, then change the # names appropriately. # The following are resident on an Apple LaserWriter # The names R, I, B and BI are in such common use that they should all be # defined somewhere. They are traditionally "times", but in practice # just mean the 4 forms of your favourite standard font. R resident Times-Roman I resident Times-Italic B resident Times-Bold BI resident Times-BoldItalic # Courier family # No outlined fonts, so trailing 'O' in name is ok. # Many of these names apply to a generic constant-width font. CO resident Courier C synonym CO CW synonym CO # Constant Width (synonym for Courier) CM synonym CO # Courier monospace (used by AT&T doco) Co resident Courier-Bold CB synonym Co Cw synonym Co BM synonym Co # Bold Monospaced (?) Used by AT&T doco BB synonym Co # AT&T bold constant width again I think cO resident Courier-Oblique CI synonym cO cW synonym cO co resident Courier-BoldOblique CX synonym co cw synonym co # Helvetica family HE resident Helvetica H synonym HE HR synonym HE He resident Helvetica-Bold #HB synonym He # HB used for hebrew hE resident Helvetica-Oblique HO synonym hE he resident Helvetica-BoldOblique HX synonym he S resident Symbol # The following are additionally available on an Apple LaserWriter Plus, # as well as most other PostScript printers. # Comment them out if you have an early Apple LaserWriter. # Palatino family PA resident Palatino-Roman Pa resident Palatino-Bold pA resident Palatino-Italic pa resident Palatino-BoldItalic # Avant Garde family AG resident AvantGarde-Book aG resident AvantGarde-BookOblique Ag resident AvantGarde-Demi ag resident AvantGarde-DemiOblique # Bookman family BK resident Bookman-Light bK resident Bookman-LightItalic Bk resident Bookman-Demi bk resident Bookman-DemiItalic # Helvetica Narrow family HN resident Helvetica-Narrow Hn resident Helvetica-Narrow-Bold hN resident Helvetica-Narrow-Oblique hn resident Helvetica-Narrow-BoldOblique # New Century Schoolbook family NS resident NewCenturySchlbk-Roman Ns resident NewCenturySchlbk-Bold nS resident NewCenturySchlbk-Italic ns resident NewCenturySchlbk-BoldItalic # Zapf Chancery family zC resident ZapfChancery-MediumItalic ZC synonym zC # because it's the only one # There are too many characters in ZapfDingbats to map # them all to ascii, and making up 2 character names for them # all is beyond me, so we split it into two halves and map # them each into ascii. See the width and code files (Z0 and Z1). Z0 resident ZapfDingbats Z1 resident ZapfDingbats # User PostScript defined fonts # The appropriate source files exist in this directory S2 postscript ps_fonts/S2.ps # Special bracket character font FA postscript ps_fonts/Faces.ps # People's faces (48x48x1) # You won't get these with your distribution SW postscript ps_fonts/SW.ps # Softway characters SF postscript ps_fonts/SF.ps # Stephen's miscellaneous characters # Outline fonts # Use Bold (or Demi, etc.) as the base font to outline for best results. # Link the width tables of the base font to that for the outline # eg: ln B.out Ro.out # [Actually, this does not give perfect results - I'll have to make some # width tables especially for these fonts - one day]. # I have used a lower case initial letter to indicate italic or oblique # Some names are non-mnemonic - I gave up. # Note that resident fonts designed for stroking (eg Courier) can't be # made into outline in this way. Ro outline Times-Bold # Roman outline ro outline Times-BoldItalic # Italic outline Io synonym ro Ho outline Helvetica-Bold # Helvetica outline ho outline Helvetica-BoldOblique # Helvetica Oblique outline # Outline fonts for LaserWriter Plus Po outline Palatino-Bold # Palatino outline po outline Palatino-BoldItalic # Palatino Italic outline Bo outline Bookman-Demi # Bookman outline bo outline Bookman-DemiItalic # Bookman Italic outline Ao outline AvantGarde-Demi # Avant Garde outline ao outline AvantGarde-DemiOblique # Avant Garde Oblique outline So outline NewCenturySchlbk-Bold # New Century Schoolbook outline so outline NewCenturySchlbk-BoldItalic # NCS Italic outline No outline Helvetica-Narrow-Bold # Helvetica Narrow outline no outline Helvetica-Narrow-BoldOblique # H-N Oblique outline Zo outline ZapfDingbats # Zapf Dingbats outline # Hershey fonts # These are actually implemented at the moment by converting each font # to PostScript in advance, rather than translating from the hershey format # as distributed on Usenet at runtime. ge postscript hershey/ge_hersh.ps # Gothic English Ge postscript hershey/Ge_hersh.ps # Gothic English Bold gE postscript hershey/gE_hersh.ps # Gothic English Oblique gg postscript hershey/gg_hersh.ps # Gothic German Gg postscript hershey/Gg_hersh.ps # Gothic German Bold gG postscript hershey/gG_hersh.ps # Gothic German Oblique gi postscript hershey/gi_hersh.ps # Gothic Italian Gi postscript hershey/Gi_hersh.ps # Gothic Italian Bold gI postscript hershey/gI_hersh.ps # Gothic Italian Oblique hp postscript hershey/hp_hersh.ps # Plain Hp postscript hershey/Hp_hersh.ps # Plain Bold hP postscript hershey/hP_hersh.ps # Plain Oblique sc postscript hershey/sc_hersh.ps # Script Complex Sc postscript hershey/Sc_hersh.ps # Script Complex Bold sC postscript hershey/sC_hersh.ps # Script Complex Oblique ss postscript hershey/ss_hersh.ps # Script Simplex Ss postscript hershey/Ss_hersh.ps # Script Simplex Bold sS postscript hershey/sS_hersh.ps # Script Simplex Oblique ht postscript hershey/ht_hersh.ps # Triplex Ht postscript hershey/Ht_hersh.ps # Triplex Bold hT postscript hershey/hT_hersh.ps # Triplex Italic HT postscript hershey/HT_hersh.ps # Triplex Bold Italic # Raster fonts typically available with DWB (originally for the imagen) # Where they are available in several point sizes, use the largest #R raster R.16 #I raster I.16 #B raster B.16 #BI raster BI.12 #S raster S.24 # Helvetica family #H raster H.18 #HB raster HB.14 #HI raster HI.18 HK raster HK.18 # Helvetica Very Bold #CW raster CW.16 # Constant Width OE raster OE.16 # Old English B1 raster B1.10 B2 raster B2.10 B3 raster B3.10 B4 raster B4.10 M1 raster M1.12 M2 raster M2.10 M3 raster M3.10 MB raster MB.10 MI raster MI.10 MK raster MK.10 MM raster MM.10 SV raster SV.14 CH raster CH.14 # Chess # Use the following if you don't have the extra PostScript resident fonts. # Palatino family #PA raster PA.14 # Palatino #PB raster PB.14 # Palatino Bold #PI raster PI.14 # Palatino Italic? #PO raster PO.16 # Palatino Oblique? #PX raster PX.12 # Palatino Bold Italic # The following 3 rasters are sus E raster E.14 EB raster EB.14 EI raster EI.14 # Berkeley vfont #R vfont /usr/lib/vfont/R.28 #R vfont /usr/lib/vfont/R.36 # tops cut off? #B vfont /usr/lib/vfont/B.28 #B vfont /usr/lib/vfont/B.36 # tops cut off? #I vfont /usr/lib/vfont/I.36 #I vfont /usr/lib/vfont/I.sr.36 # ? # Basker family Ba vfont /usr/lib/vfont/basker.b.12 bA vfont /usr/lib/vfont/basker.i.12 BA vfont /usr/lib/vfont/basker.r.12 # Bodoni family Bd vfont /usr/lib/vfont/bodoni.b.10 bD vfont /usr/lib/vfont/bodoni.i.10 BD vfont /usr/lib/vfont/bodoni.r.10 # CM family - Computer Modern? Cm vfont /usr/lib/vfont/cm.b.12 cM vfont /usr/lib/vfont/cm.i.12 #CM vfont /usr/lib/vfont/cm.r.12 # Delegate family DE vfont /usr/lib/vfont/delegate.r.12 De vfont /usr/lib/vfont/delegate.b.12 #De vfont /usr/lib/vfont/delegate.b.12. dE vfont /usr/lib/vfont/delegate.i.12 # Gacham family GA vfont /usr/lib/vfont/gacham.r.10 Ga vfont /usr/lib/vfont/gacham.b.10 gA vfont /usr/lib/vfont/gacham.i.10 # Meteor family ME vfont /usr/lib/vfont/meteor.r.12 Me vfont /usr/lib/vfont/meteor.b.12 mE vfont /usr/lib/vfont/meteor.i.8 # Nonie family (note: 'No' conflicts with Helvetica Narrow Outline) Nn vfont /usr/lib/vfont/nonie.b.12 nN vfont /usr/lib/vfont/nonie.i.12 NN vfont /usr/lib/vfont/nonie.r.12 # Times family Ti vfont /usr/lib/vfont/times.b.10 TI vfont /usr/lib/vfont/times.r.10 ti vfont /usr/lib/vfont/times.s.10 # Clarendon family #CL ? /usr/lib/vfont/clarendon.14.c CL vfont /usr/lib/vfont/clarendon.18 # Oe vfont /usr/lib/vfont/oldenglish.18 # Old English PI vfont /usr/lib/vfont/pip.16 PL vfont /usr/lib/vfont/playbill.10 SR vfont /usr/lib/vfont/script.18 SH vfont /usr/lib/vfont/shadow.16 SI vfont /usr/lib/vfont/sign.22 ST vfont /usr/lib/vfont/stare.r.16 UG vfont /usr/lib/vfont/ugramma.10 CD vfont /usr/lib/vfont/countdown.22 FX vfont /usr/lib/vfont/fix.14 H1 vfont /usr/lib/vfont/h19.10 # ? BL vfont /usr/lib/vfont/bocklin.28 MO vfont /usr/lib/vfont/mona.24 # Misc foreign language character sets GK vfont /usr/lib/vfont/greek.10 HB vfont /usr/lib/vfont/hebrew.36 CY vfont /usr/lib/vfont/cyrillic.12 # Misc non-ascii character sets GR vfont /usr/lib/vfont/graphics.14 AP vfont /usr/lib/vfont/apl.10 #S? vfont /usr/lib/vfont/S.11 #S? vfont /usr/lib/vfont/S.12 Ch vfont /usr/lib/vfont/chess.18
jimi@h-three.UUCP (jimi) (10/13/88)
In article <1221@tmpmbx.UUCP>, csch@tmpmbx.UUCP (Clemens Schrimpe) writes: > jos@idca.tds.PHILIPS.nl (Jos Vos) writes: > <> Can anybody give me some suggestions about the two-letter fontnames for > <> [di]troff that I should assign to the 35 built-in fonts of the Apple > <> LaserWriter IINTX? Of course I can define some (sometimes even reasonable) > <> names, but I want to use standards as much as possible. > > We use the EROFF-package from ELAN Computer Group Inc. > > The have a manual-page (psfonts.5), where I found the following: We use a postprocessor, devps, that translates our ditroff output into PostScript programs. I'm posting the names devps uses for the LaserWriter IINTX built-in fonts alongside the EROFF names. (Where EROFF and devps use the same names, the devps column is blank.) Font names and Note 1 are reproduced, without permission, from devps documentation copyrighted by Pipeline Associates, Inc. It's hard to argue, except "religiously," in favor of one or the other; this is a good example of a standard that's really needed. Any standards groups want to make this an ANSI/ISO standard? FONT NAMES EROFF PostScript devps R Times-Roman I Times-Italic B Times-Bold BI Times-BoldItalic H Helvetica HI Helvetica-Oblique HB Helvetica-Bold HX Helvetica-BoldOblique CW Courier (Constant width) CI Courier-Oblique CB Courier-Bold CX Courier-BoldOblique S Symbol Additional Fonts PR Palatino-Roman PA PI Palatino-Italic PB Palatino-Bold PX Palatino-BoldItalic A AvantGarde-Book AG AI AvantGarde-BookOblique AI AB AvantGarde-Demi AX AvantGarde-DemiOblique Z Bookman-Light Bm ZI Bookman-LightItalic Bi ZB Bookman-Demi Bb ZX Bookman-DemiItalic Bx N Helvetica-Narrow Hn NI Helvetica-Narrow-Oblique Hi NB Helvetica-Narrow-Bold Hb NX Helvetica-Narrow-BoldOblique Hx ZC ZapfChancery-MediumItalic ZD ZapfDingbats Z1, Z2 (see Note 1) X NewCenturySchlbk-Roman NR XI NewCenturySchlbk-Italic NI XB NewCenturySchlbk-Bold NB XX NewCenturySchlbk-BoldItalic NX Note 1 The font ZapfDingbats is divided into two troff fonts, Z1 and Z2, where Z2 is the upper 128 characters shifted onto the lower 128 characters. This allows ditroff access to characters with codes greater than 127. -- Jim Ingram uunet!h-three!jimi | jimi%h-three@uunet.uu.net h-three Systems Corporation P.O. Box 12557 RTP NC 27709 919 549 8334
rick@pcrat.UUCP (Rick Richardson) (10/13/88)
>In article <1221@tmpmbx.UUCP>, csch@tmpmbx.UUCP (Clemens Schrimpe) writes: >> jos@idca.tds.PHILIPS.nl (Jos Vos) writes: >> <> Can anybody give me some suggestions about the two-letter fontnames for > Instead of wasting a letter to indicate bold, italic, or both, I used upper/lower case to differentiate these variations in JetRoff. xx 'normal' Xx bold (capitalized looks kind of Bold) xX italic (looks a little slanted, don't you think) XX bold italic For backwards compatability, I kept R, B, I, H, HB, HI, CW, and S. But I think for the future it makes much more sense to use the two letters for the name, and the case for the style. It's too bad so much of the name space has already been wasted... -- Rick Richardson, PC Research, Inc. rick%pcrat.uucp@uunet.uu.net (INTERNET) uunet!pcrat!rick (UUCP, Personal Mail) ..!pcrat!jetroff (JetRoff Info) ..!pcrat!dry2 (Dhrystone Submissions)
jimi@h-three.UUCP (jimi) (10/13/88)
In article <379@h-three.UUCP>, jimi@h-three.UUCP (jimi) writes: > In article <1221@tmpmbx.UUCP>, csch@tmpmbx.UUCP (Clemens Schrimpe) writes: > > jos@idca.tds.PHILIPS.nl (Jos Vos) writes: > > <> Can anybody give me some suggestions about the two-letter fontnames for > > <> [di]troff that I should assign to the 35 built-in fonts of the Apple > > <> LaserWriter IINTX? Of course I can define some (sometimes even > > <> reasonable) names, but I want to use standards as much as possible. > > > > [deleted] > > It's hard to argue, except "religiously," in favor of one [set of > names] or [another]; this is a good example of a standard that's > really needed. Any standards groups want to make this an ANSI/ISO > standard? I really should have put a *8^) after the preceding paragraph in my previous posting. It's hard to imagine an ANSI/ISO standard that specifies troff font names, especially since what a font name means on one device might name an different font on another device (e.g., does HO stand for Helvetica Outline or Helvetica Oblique? On a phototypesetter I use, Helvetica Oblique is called Triumvarate Italic.). Since it's so easy in troff to map one font name to another name or number, font names need not be an obstacle in the exchange of revisable form troff documents. > > [table of font names deleted] One standard that might make sense is for the set of special character names that might occur in a troff rf document. It's inconvenient to use PostScript's native method of character encoding in troff documents, and it's inconvenient to map one set of character names to another. The characters I'm thinking about include the fairly standardized set of names for typographical symbols, the national characters, math symbols, etc. Such a standard needn't apply only to PostScript output devices. This discussion is moving away from PostScript. Perhaps it should continue, if at all, in comp.text. -- Jim Ingram uunet!h-three!jimi | jimi%h-three@uunet.uu.net h-three Systems Corporation P.O. Box 12557 RTP NC 27709 919 549 8334
rodgers@cca.ucsf.edu (Rick Rodgers) (10/15/88)
In article <379@h-three.UUCP> jimi@h-three.UUCP (jimi) writes: >In article <1221@tmpmbx.UUCP>, csch@tmpmbx.UUCP (Clemens Schrimpe) writes: >> jos@idca.tds.PHILIPS.nl (Jos Vos) writes: >> <> Can anybody give me some suggestions about the two-letter fontnames for >> <> [di]troff that I should assign to the 35 built-in fonts of the Apple >> <> LaserWriter IINTX? Of course I can define some (sometimes even reasonable) >> <> names, but I want to use standards as much as possible. Another convention to consider is that of Adobe Systems, creators of TranScript. I append a table taken from a man page I wrote which I believe has been incorporated in modified form into TranScript. The naming convention is NOT mine; I bridled against it at first, but now find it sensible; the regular font is 2 lower-case letters; the bold version capitalizes the first, italic capitalizes the second, and bold-italic cpaitalizes both. The exceptions are the Times fonts and Courier, as an earlier usage is so well entrenched. I include some notes about ditroff font bugs bugs and work-arounds. PostScript Name C* PostScript Name C* --------------- -- --------------- -- AvantGarde-Book ag Helvetica-Narrow-Oblique hN AvantGarde-BookOblique aG Helvetica-Narrow-Bold Hn AvantGarde-Demi Ag Helvetica-Narrow-BoldOblique HN AvantGarde-DemiOblique AG NewCenturySchlbk-Roman nc Bookman-Light bo NewCenturySchlbk-Italic nC Bookman-Italic bO NewCenturySchlbk-Bold Nc Bookman-Demi Bo NewCenturySchlbk-BoldItalic NC Bookman-DemiItalic BO Palatino-Roman pa Courier C Palatino-Italic pA Courier-Oblique CO Palatino-Bold Pa Courier-Bold CB Palatino-BoldItalic PA Courier-BoldOblique CD Symbol S Helvetica he Times-Roman R Helvetica-Oblique hE Times-Italic I Helvetica-Bold He Times-Bold B Helvetica-BoldOblique HE Times-BoldItalic BI Helvetica-Narrow nh ZapfChancery-MediumItalic ZC ZapfDingbats ZD ------------------- * ditroff font code IMPORTANT NOTES ABOUT DITROFF USAGE (BUG WORK-AROUNDS) AT&T and Berkeley-enhanced device-independent troff(1), or ditroff(1L), as accessed in TrnaScript by the psroff(1L) command, exhibit the following problems regarding font changes: 1) There are 10 premounted fonts, corresponding to font codes R I B BI H He C CB S in the above chart, and including a special extension to the S font known as SS (this extension set is never accessed directly as an independent font and therefore does not appear in the table). These fonts are mounted in positions 1 through 10; fonts other than these can be EXPLICITLY MOUNTED in any numerical position with the ditroff(1L) .fp command (avoid using positions 9 and 10 which are occupied by the S and SS font sets). The amount of memory available for a given font position is fixed (during the initialization of ditroff(1L)) to the size of the font first mounted there; if a later attempt is made to mount a larger font in this position, ditroff(1L) prints an error message about the requested font being too large for the position. The positions initially occupied by the Courier fonts (positions 7 and 8) seem particularly prone to this problem, which can be minimized by explicitly mounting a font prior to its use, into a position occupied by a large font. For example, the Zapf Chancery font can be mounted in position 6 with the command: .fp 6 ZC. The font position MUST be between 1 and 10. 2) If an unmounted font is requested via a ditroff(1L) \f command, it is automatically mounted into a special font position numbered 0. (I will refer to this process as IMPLICITLY MOUNTING a font). The font size problem can also arise, in which case explicitly mounting the needed font (into position 6, for example) can again solve the problem. 3) There is a bug in ditroff(1L) such that use of more than one implicitly mounted font within the same output line causes the incorrect font metrics to be used (causing incorrect character spacing). The solution to this problem is to explicitly mount each font to be used prior to using the \f command. 4) Beware of some earlier versions of psdit(1L), in which characters appearing immediately prior to the implicit mounting of a font may be printed over one another. 5) There is an (as yet poorly characterized) bug in Berkeley ditroff(1L) which causes incorrect fonts to be employed when explicitly mounted fonts are mounted implicitly. For example, mounting the Times Roman font in position 2 can lead to this problem. The problem appears to arise when the \fP command is subsequently used (the system does not return to the correct previous font). However, maneuvers such as mounting hn onto position 2 (normally employed by Times Italic), and then later remounting I onto position 2, seem to work.