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+.\" Copyright (C) Caldera International Inc. 2001-2002. All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions are
+.\" met:
+.\"
+.\" Redistributions of source code and documentation must retain the above
+.\" copyright notice, this list of conditions and the following
+.\" disclaimer.
+.\"
+.\" Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in the
+.\" documentation and/or other materials provided with the distribution.
+.\"
+.\" All advertising materials mentioning features or use of this software
+.\" must display the following acknowledgement:
+.\"
+.\" This product includes software developed or owned by Caldera
+.\" International, Inc. Neither the name of Caldera International, Inc.
+.\" nor the names of other contributors may be used to endorse or promote
+.\" products derived from this software without specific prior written
+.\" permission.
+.\"
+.\" USE OF THE SOFTWARE PROVIDED FOR UNDER THIS LICENSE BY CALDERA
+.\" INTERNATIONAL, INC. AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR
+.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+.\" DISCLAIMED. IN NO EVENT SHALL CALDERA INTERNATIONAL, INC. BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT INCIDENTAL, SPECIAL, EXEMPLARY, OR
+.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+.\" BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+.\" WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+.\" OR OTHERWISE) RISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+.\" IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+.\"
+.\" @(#)m0a 8.1 (Berkeley) 8/14/93
+.\"
+.\" $FreeBSD$
+.br
+.tr |
+.ce
+.ft B
+SUMMARY OF REQUESTS AND OUTLINE OF THIS MANUAL
+.ft R
+.de mx
+.ev 2
+.nf
+.h1
+.in
+.sp
+.fi
+.ev
+.ns
+..
+.xx
+.h1 \s-1#\s+1 *
+.fn
+.sp .3
+*Values separated by "\fB;\fR" are for \*(NR and \*(TR respectively.
+.sp .2
+\s-1#\s+1Notes are explained at the end of this Summary and Index
+.ef
+.mh
+General Explanation
+.mh
+Font and Character Size Control
+.bt
+\fB&ps\fI\|\(+-N\fR 10\|point previous E Point size; also \fB\es\fI\(+-N\fR.\(dg
+.b1
+\fB&fz\fI|F|\(+-N\fR off - E font \fIF\fR to point size \fI\(+-N\fR.
+.b1
+\fB&fz|S|\fIF|\(+-N\fR off - E Special Font characters to point size \fI\(+-N\fR.
+.b1
+\fB&ss\fI|N\fR 12\(sl36\|em ignored E Space-character size
+set to \fIN\fR\(sl36\|em.\(dg
+.b1
+\fB&cs\fI|F\|N\|M\fR off - P Constant character
+space (width)
+mode (font \fIF\^\fR\^).\(dg
+.b1
+\fB&bd\fI|F|N\fR off - P Embolden font \fIF\fR by \fIN\fR\(mi1 units.\(dg
+.b1
+\fB&bd|S|\fIF|N\fR off - P Embolden Special Font when current font is \fIF\fR.\(dg
+.fn
+.sp .2
+\(dgNo effect in \*(NR.
+.ef
+.b1
+\fB&ft\fI|F\fR Roman previous E Change to font
+\fIF\fR|= \fIx\fR, \fIxx\fR, or 1-4.
+Also \fB\ef\fIx\fR,\|\fB\ef(\fIxx\fR,\|\fB\ef\fIN\fR.
+.b1
+\fB&fp\fI|N|F\fR R,I,B,S ignored - Font named \fIF\fR mounted on physical position 1\(<=\fIN\fR\(<=4.
+.mh
+Page Control
+.bt
+\fB&pl\fI|\(+-N\fR 11\|in 11\|in \fBv\fR Page length.
+.b1
+\fB&bp|\fI\(+-N\fR \fIN\(eq\fR1 - B\(dd,\fBv\fR \
+Eject current page; next page number \fIN\fR.
+.fn
+.sp .2
+\(ddThe use of "\ \fB\'\fR\ " as control character (instead of "\fB.\fR")
+suppresses the break function.
+.ef
+.b1
+\fB&pn\fI|\(+-N N\(eq\fR1 ignored - Next page number \fIN\fR.
+.b1
+\fB&po\fI|\(+-N\fR 0;|26\(sl27\|in previous \fBv\fR Page offset.
+.b1
+\fB&ne\fI|N\fR - \fIN\(eq\fR1\fIV\fR D,\fBv\fR Need \fIN\fR vertical space (\fIV\fR = vertical spacing).
+.b1
+\fB&mk|\fIR\fR none internal D Mark current vertical place in register \fIR\fR.
+.b1
+\fB&rt\fI|\(+-N\fR none internal D,\fBv\fR Return \fI(upward only)\fR to marked vertical place.
+.mh
+Text Filling, Adjusting, and Centering
+.bt
+\fB&br\fR - - B Break.
+.b1
+.lg 0
+\fB&fi\fR \(fill - B,E Fill output lines.
+.lg
+.b1
+\fB&nf\fR fill - B,E No filling or adjusting of output lines.
+.b1
+\fB&ad\fI|c\fR adj,both adjust E Adjust output lines with mode \fIc\fR.
+.b1
+\fB&na\fR adjust - E No output line adjusting.
+.b1
+\fB&ce\fI|N\fR off \fIN\(eq\fR1 B,E Center following \fIN\fR input text lines.
+.mh
+Vertical Spacing
+.bt
+\fB&vs\fI|N\fR 1\(sl6in;12pts previous E,\fBp\fR Vertical base line spacing (\fIV\fR\^).
+.b1
+\fB&ls\fI|N N\(eq\fR1 previous E Output \fIN\(mi\fR1 \fIV\^\fRs after each text output line.
+.b1
+\fB&sp\fI|N\fR - \fIN\(eq\fR1\fIV\fR B,\fBv\fR Space \
+vertical distance \fIN\fR \fIin either direction\fR.
+.b1
+\fB&sv\fI|N\fR - \fIN\(eq\fR1\fIV\fR \fBv\fR Save vertical distance \fIN\fR.
+.b1
+\fB&os\fR - - - Output saved vertical distance.
+.b1
+\fB&ns\fR space - D Turn no-space mode on.
+.b1
+\fB&rs\fR - - D Restore spacing; turn no-space mode off.
+.mh
+Line Length and Indenting
+.bt
+\fB&ll\fI|\(+-N\fR 6.5\|in previous E,\fBm\fR Line length.
+.b1
+\fB&in\fI|\(+-N\fR \fIN\(eq\fR\^0 previous B,E,\fBm\fR Indent.
+.b1
+\fB&ti\fI|\(+-N\fR - ignored B,E,\fBm\fR Temporary indent.
+.mh
+Macros, Strings, Diversion, and Position Traps
+.bt
+\fB&de\fI|xx|yy\fR - \fI.yy=\fB..\fR - Define or redefine macro \fIxx;\fR end at call of \fIyy\fR.
+.b1
+\fB&am\fI|xx|yy\fR - \fI.yy=\fB..\fR - Append to a macro.
+.b1
+\fB&ds\fI|xx|string\fR - ignored - Define a string \fIxx\fR containing \fIstring\fR.
+.b1
+\fB&as\fI|xx|string\fR - ignored - Append \fIstring\fR to string \fIxx\fR.
+.b1
+\fB&rm\fI|xx\fR - ignored - Remove request, macro, or string.
+.b1
+\fB&rn\fI|xx|yy\fR - ignored - Rename request, macro, or string \fIxx\fR to \fIyy\fR.
+.b1
+\fB&di\fI|xx\fR - end D Divert output to macro \fIxx\fR.
+.b1
+\fB&da\fI|xx\fR - end D Divert and append to \fIxx\fR.
+.b1
+\fB&wh\fI|N|xx\fR - - \fBv\fR Set location trap; negative is w.r.t. page bottom.
+.b1
+\fB&ch\fI|xx|N\fR - - \fBv\fR Change trap location.
+.b1
+\fB&dt\fI|N|xx\fR - off D,\fBv\fR Set a diversion trap.
+.b1
+\fB&it\fI|N|xx\fR - off E Set an input-line count trap.
+.b1
+\fB&em\fI|xx\fR none none - End macro is \fIxx\fI.
+.mh
+Number Registers
+.bt
+\fB&nr\fI|R|\(+-N|M\fR - - \fBu\fR Define and set number register \fIR\fR; auto-increment by \fIM\fR.
+.b1
+\fB&af\fI|R|c\fR arabic - - Assign format to register \fIR\fR (\fIc=\fB1\fR, \fBi\fR, \fBI\fR, \fBa\fR, \fBA\fR).
+.b1
+\fB&rr\fI|R\fR - - - Remove register \fIR\fR.
+.mh
+Tabs, Leaders, and Fields
+.bt
+\fB&ta\fI|Nt|...\fR 0.8;|0.5in none E,\fBm\fR Tab settings; \fIleft\fR type, unless \fIt=\fBR\fR(right), \fBC\fR(centered).
+.b1
+\fB&tc\fI|c\fR none none E Tab repetition character.
+.b1
+\fB&lc\fI|c\fR \fB.\fR none E Leader repetition character.
+.b1
+\fB&fc\fI|a|b\fR off off - Set field delimiter \fIa\fR and pad character \fIb\fR.
+.mh
+Input and Output Conventions and Character Translations
+.bt
+\fB&ec\fI|c\fR \e \e - Set escape character.
+.b1
+\fB&eo\fR on - - Turn off escape character mechanism.
+.b1
+\fB&lg\fI|N\fR -;\|on on - Ligature mode
+on if \fIN\fR>0.
+.b1
+\fB&ul\fI|N\fR off \fIN\(eq\fR1 E Underline (italicize in \*(TR) \fIN\fR input lines.
+.b1
+\fB&cu\fI|N\fR off \fIN\(eq\fR1 E Continuous underline in \*(NR; like \fBul\fR in \*(TR.
+.b1
+\fB&uf\fI|F\fR Italic Italic - Underline font set to \fIF\fR (to be switched to by \fBul\fR).
+.b1
+\fB&cc\fI|c\fR \fB. .\fR E Set control character to \fIc\fR.
+.b1
+\fB&c2\fI|c\fR \fB\' \'\fR E Set nobreak control character to \fIc\fR.
+.b1
+\fB&tr\fI|abcd....\fR none - O Translate \fIa\fR to \fIb\fR, etc. on output.
+.mh
+Local Horizontal and Vertical Motions, and the Width Function
+.mh
+Overstrike, Bracket, Line-drawing, and Zero-width Functions
+.mh
+Hyphenation.
+.bt
+\fB&nh\fR hyphenate - E No hyphenation.
+.b1
+\fB&hy\fI|N\fR hyphenate hyphenate E Hyphenate; \fIN =\fR mode.
+.b1
+\fB&hc\fI|c\fR \fB\e% \e%\fR E Hyphenation indicator character \fIc\fR.
+.b1
+\fB&hw\fI|word1|...\fR ignored - Exception words.
+.mh
+Three Part Titles.
+.bt
+\fB&tl\fI|\'left\|\'center\|\'right\|\'\fR - - Three part title.
+.b1
+\fB&pc\fI|c\fR \fB%\fR off - Page number character.
+.b1
+\fB&lt\fI|\(+-N\fR 6.5\|in previous E,\fBm\fR Length of title.
+.mh
+Output Line Numbering.
+.bt
+\fB&nm\fI|\(+-N|M|S|I\fR off E Number mode on or off, set parameters.
+.b1
+\fB&nn\fI|N\fR - \fIN\(eq\fR1 E Do not number next \fIN\fR lines.
+.mh
+Conditional Acceptance of Input
+.bt
+\fB&if\fI|c|anything\fR - - If condition \fIc\fR true, accept \fIanything\fR as input,
+.b1
+ for multi-line use \fI\e{anything\|\e}\fR.
+.b1
+\fB&if|!\fIc|anything\fR - - If condition \fIc\fR false, accept \fIanything\fR.
+.b1
+\fB&if\fI|N|anything\fR - \fBu\fR If expression \fIN\fR > 0, accept \fIanything\fR.
+.b1
+\fB&if|!\fIN|anything\fR - \fBu\fR If expression \fIN\fR \(<= 0, accept \fIanything\fR.
+.b1
+\fB&if\fI|\|\'string1\|\'string2\|\'|anything\fR - If \fIstring1\fR identical to \fIstring2\fR,
+accept \fIanything\fR.
+.b1
+\fB&if|!\fI\|\'string1\|\'string2\|\'|anything\fR - If \fIstring1\fR not identical to \fIstring2\fR,
+accept \fIanything\fR.
+.b1
+\fB&ie\fI|c|anything\fR - \fBu\fR If portion of if-else; all above forms (like \fBif\fR).
+.b1
+\fB&el\fI|anything\fR - - Else portion of if-else.
+.mh
+Environment Switching.
+.bt
+\fB&ev\fI|N\fR \fIN\(eq\fR0 previous - Environment switched (\fIpush down\fR).
+.mh
+Insertions from the Standard Input
+.bt
+\fB&rd\fI|prompt\fR\fR - \fIprompt=\s-1\fRBEL\s+1 Read insertion.
+.b1
+\fB&ex\fR - - - \
+Exit from \*(NR\(sl\*(TR.
+.mh
+Input\(slOutput File Switching
+.bt
+\fB&so\fI|filename\fR - - Switch source file \fI(push down)\fR.
+.b1
+\fB&nx\fI|filename\fR end-of-file - Next file.
+.b1
+\fB&pi\fI|program\fR - - Pipe output to \fIprogram\fR (\*(NR only).
+.mh
+Miscellaneous
+.bt
+\fB&mc\fI|c|N\fR - off E,\fBm\fR Set margin character \fIc\fR and separation \fIN\fR.
+.b1
+\fB&tm\fI|string\fR - newline - Print \fIstring\fR on terminal \
+(\s-1UNIX\s+1 standard error output).
+.b1
+\fB&ig\fI|yy\fR - \fI.yy=\fB..\fR - Ignore till call of \fIyy\fR.
+.b1
+\fB&pm\fI|t\fR - all - Print macro names and sizes;
+.b1
+ if \fIt\fR present, print only total of sizes.
+.b1
+\fB&ab\fI|string\fR - - - Print a message and abort.
+.b1
+.lg 0
+\fB&fl\fR - - B Flush output buffer.
+.lg
+.mh
+Output and Error Messages
+.xx
+.nf
+.rm mx
+.ft R
+\l'\n(.lu'
+.ft B
+.xx
+.ta .3iC .6i
+ Notes-
+.xx
+.ft R
+ B Request normally causes a break.
+ D Mode or relevant parameters associated with current diversion level.
+ E Relevant parameters are a part of the current environment.
+ O Must stay in effect until logical output.
+ P Mode must be still or again in effect at the time of physical output.
+ \fBv\fR,\fBp\fR,\fBm\fR,\fBu\fR Default scale indicator; if not specified, scale indicators are \fIignored\fR.
+.br
+.nr zz 11
+.de cl
+.ie \\n+(cl<\n(zz \{\
+. po +\\n(.lu/\n(zzu
+. rt
+.\}
+.el \{\
+.po 26i/27u
+.\}
+..
+.nr cl 0 1
+.di zz
+.ta .3iR
+.nf
+.ps 8
+.vs 10
+ab 20
+ad 4
+af 8
+am 7
+as 7
+bd 2
+bp 3
+br 4
+c2 10
+cc 10
+ce 4
+ch 7
+cs 2
+cu 10
+da 7
+de 7
+di 7
+ds 7
+dt 7
+ec 10
+el 16
+em 7
+eo 10
+ev 17
+ex 18
+fc 9
+fi 4
+fl 20
+fp 2
+ft 2
+fz 2
+hc 13
+hw 13
+hy 13
+ie 16
+if 16
+ig 20
+in 6
+it 7
+lc 9
+lg 10
+li 10
+ll 6
+ls 5
+lt 14
+mc 20
+mk 3
+na 4
+ne 3
+nf 4
+nh 13
+nm 15
+nn 15
+nr 8
+ns 5
+nx 19
+os 5
+pc 14
+pi 19
+pl 3
+pm 20
+pn 3
+po 3
+ps 2
+rd 18
+rm 7
+rn 7
+rr 8
+rs 5
+rt 3
+so 19
+sp 5
+ss 2
+sv 5
+ta 9
+tc 9
+ti 6
+tl 14
+tm 20
+tr 10
+uf 10
+ul 10
+vs 5
+wh 7
+.di
+.nr aa \n(dn/\n(zz
+.ne \n(aau+10p
+.sp
+.ft B
+Alphabetical Request and Section Number Cross Reference
+.ft
+.sp .3
+.wh \n(nlu+\n(aau cl
+.nr qq \n(nlu+\n(aau
+.ps
+.vs
+.mk
+.zz
+.rt
+.sp \n(.tu
+.ch cl 12i
+.sp
+.bp
+.nf
+.ft B
+Escape Sequences for Characters, Indicators, and Functions
+.ft R
+.xx
+.TS
+c2l
+c2l2l
+n2l2l.
+.ft I
+.bd I 3
+Section Escape
+Reference Sequence Meaning
+.ft R
+.bd I
+.xx
+10.1 \fB\e\e\fR \e (to prevent or delay the interpretation of \e\|)
+10.1 \fB\ee\fR Printable version of the \fIcurrent\fR escape character.
+2.1 \fB\e\'\fR \' (acute accent); equivalent to \fB\e(aa\fR
+2.1 \fB\e\`\fR \` (grave accent); equivalent to \fB\e(ga\fR
+2.1 \fB\e\-\fR \- Minus sign in the \fIcurrent\fR font
+7 \fB\e\^.\fR Period (dot) (see \fBde\fR)
+11.1 \fB\e\fR(space) Unpaddable space-size space character
+11.1 \fB\e0\fR Digit width space
+.tr ||
+11.1 \fB\e\||\fR 1\(sl6\|em narrow space character (zero width in \*(NR)
+.tr |
+11.1 \fB\e^\fR 1\(sl12\|em half-narrow space character (zero width in \*(NR)
+.tr &&
+4.1 \fB\e&\fR Non-printing, zero width character
+.tr &.
+10.6 \fB\e!\fR Transparent line indicator
+10.7 \fB\e"\fR Beginning of comment
+7.3 \fB\e$\fIN\fR Interpolate argument 1\(<=\fIN\fR\(<=9
+13 \fB\e%\fR Default optional hyphenation character
+2.1 \fB\e(\fIxx\fR Character named \fIxx\fR
+7.1 \fB\e\(**\fIx\fR,|\fB\e\(**(\fIxx\fR Interpolate string \fIx\fR or \fIxx\fR
+9.1 \fB\ea\fR Non-interpreted leader character
+12.3 \fB\eb\fI\'abc...\|\'\fR Bracket building function
+4.2 \fB\ec\fR Interrupt text processing
+11.1 \fB\ed\fR Forward (down) 1\(sl2\|em vertical motion (1\(sl2 line in \*(NR)
+2.2 \fB\ef\fIx\fR,\fB\ef(\fIxx\fR,\fB\ef\fIN\fR Change to font named \fIx\fR or \fIxx\fR, or position \fIN\fR
+11.1 \fB\eh\fI\'N|\'\fR Local horizontal motion; move right \fIN\fR \fI(negative left)\fR
+11.3 \fB\ek\fIx\fR Mark horizontal \fIinput\fR place in register \fIx\fR
+12.4 \fB\el\fI\|\'Nc\|\'\fR Horizontal line drawing function (optionally with \fIc\fR\|)
+12.4 \fB\eL\fI\'Nc\|\'\fR Vertical line drawing function (optionally with \fIc\fR\|)
+8 \fB\en\fIx\fR,\fB\en(\fIxx\fR Interpolate number register \fIx\fR or \fIxx\fR
+12.1 \fB\eo\fI\'abc...\|\'\fR Overstrike characters \fIa, b, c, ...\fR
+4.1 \fB\ep\fR Break and spread output line
+11.1 \fB\er\fR Reverse 1\|em vertical motion (reverse line in \*(NR)
+2.3 \fB\es\fIN\fR,\|\fB\es\fI\(+-N\fR Point-size change function
+9.1 \fB\et\fR Non-interpreted horizontal tab
+11.1 \fB\eu\fR Reverse (up) 1\(sl2\|em vertical motion (1\(sl2 line in \*(NR)
+11.1 \fB\ev\fI\'N\|\|\'\fR Local vertical motion; move down \fIN\fR \fI(negative up)\fR
+11.2 \fB\ew\fI\'string\|\'\fR Interpolate width of \fIstring\fR
+5.2 \fB\ex\fI\'N\|\|\'\fR Extra line-space function \fI(negative before, positive after)\fR
+12.2 \fB\ez\fIc\fR Print \fIc\fR with zero width (without spacing)
+16 \fB\e{\fR Begin conditional input
+16 \fB\e}\fR End conditional input
+10.7 \fB\e\fR(newline) Concealed (ignored) newline
+- \fB\e\fIX\fR \fIX\fR, any character \fInot\fR listed above
+.TE
+.fi
+.sp
+The escape sequences
+\fB\e\e\fR,
+\fB\e\^.\fR,
+\fB\e"\fR,
+\fB\e$\fR,
+\fB\e\(**\fR,
+\fB\ea\fR,
+\fB\en\fR,
+\fB\et\fR,
+and
+\fB\e\fR(newline) are interpreted in \fIcopy mode\fR (\(sc7.2).
+.bp
+.ft B
+.nf
+Predefined General Number Registers
+.ft
+.TS
+c2l
+c2l2l
+n2l2l.
+.ft I
+.bd I 3
+Section Register
+Reference Name Description
+.ft R
+.bd I
+.xx
+3 \fB%\fR Current page number.
+19 \fBc&\fR Number of \fIlines\fR read from current input file.
+11.2 \fBct\fR Character type (set by \fIwidth\fR function).
+7.4 \fBdl\fR Width (maximum) of last completed diversion.
+7.4 \fBdn\fR Height (vertical size) of last completed diversion.
+- \fBdw\fR Current day of the week (1-7).
+- \fBdy\fR Current day of the month (1-31).
+11.3 \fBhp\fR Current horizontal place on \fIinput\fR line (not in ditroff)
+15 \fBln\fR Output line number.
+- \fBmo\fR Current month (1-12).
+4.1 \fBnl\fR Vertical position of last printed text base-line.
+11.2 \fBsb\fR Depth of string below base line (generated by \fIwidth\fR function).
+11.2 \fBst\fR Height of string above base line (generated by \fIwidth\fR function).
+- \fByr\fR Last two digits of current year.
+.TE
+.sp
+.ft B
+Predefined Read-Only Number Registers
+.ft R
+.TS
+c2l
+c2l2l
+n2l2l.
+.ft I
+.bd I 3
+Section Register
+Reference Name Description
+.ft R
+.bd I
+.xx
+7.3 \fB&$\fR Number of arguments available at the current macro level.
+- \fB&A\fR Set to 1 in \*(TR, if \fB\-a\fR option used; always 1 in \*(NR.
+11.1 \fB&H\fR Available horizontal resolution in basic units.
+5.3 \fB&L\fR Set to current \fIline-spacing\fR (\fBls\fR) parameter
+- \fB&P\fR Set to 1 if the current page is being printed; otherwise 0.
+- \fB&T\fR Set to 1 in \*(NR, if \fB\-T\fR option used; always 0 in \*(TR.
+11.1 \fB&V\fR Available vertical resolution in basic units.
+5.2 \fB&a\fR Post-line extra line-space most recently utilized \
+using \fB\ex\fI\'N\|\'\fR.
+19 \fB&c\fR Number of \fIlines\fR read from current input file.
+7.4 \fB&d\fR Current vertical place in current diversion; equal to \fBnl\fR, if no diversion.
+2.2 \fB&f\fR Current font as physical quadrant (1-4).
+4 \fB&h\fR Text base-line high-water mark on current page or diversion.
+6 \fB&i\fR Current indent.
+4.2 \fB&j\fR Current adjustment mode and type.
+4.1 \fB&k\fR Length of text portion on current partial output line.
+6 \fB&l\fR Current line length.
+4 \fB&n\fR Length of text portion on previous output line.
+3 \fB&o\fR Current page offset.
+3 \fB&p\fR Current page length.
+2.3 \fB&s\fR Current point size.
+7.5 \fB&t\fR Distance to the next trap.
+4.1 \fB&u\fR Equal to 1 in fill mode and 0 in nofill mode.
+5.1 \fB&v\fR Current vertical line spacing.
+11.2 \fB&w\fR Width of previous character.
+- \fB&x\fR Reserved version-dependent register.
+- \fB&y\fR Reserved version-dependent register.
+7.4 \fB&z\fR Name of current diversion.
+.TE
+.in 0
+.fi
+.ps 10
+.vs 12
+.ft R
+.bp