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Code Editor : reserved.html

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<h1 id="reserved-words" class="docs">List of reserved words (macros, strings, registers)</h1>

The following is a list of reserved words used by mom. Before
changing the name of any macro or document element tag with
<a href="goodies.html#ALIAS">ALIAS</a>,
I strongly recommend doing a search of this page for your proposed
new name. If you find it in the left hand column, choose something
else instead.

Anyone interested in hacking/patching mom&#8217;s macro file
(om.tmac) will also find this list useful since it lists most of
the macros, strings, diversions, aliases, and number registers
mom uses, along with brief descriptions of their functions.

The list is not exhaustive. PDF-related macros, strings, registers,
and diversions, as well as those associated with preprocessor
support and &#8220;Lists of&#8221; are not included.

TYPESETTING
+++MACROS+++
*Page layout
 PAGELENGTH Page width
 PAGE Page width/length; left, right, top, bottom margins
 PAGEWIDTH Page width
 PAPER Letter, legal, or A4
 B_MARGIN Space to leave at page bottom
 L_MARGIN Page offset
 R_MARGIN Line length as a function of
 pagewidth minus pageoffset minus rightmargin
 T_MARGIN Advance lead from page top

*Page control
 DO_B_MARGIN Margin at bottom of page; trap-invoked
 DO_T_MARGIN Margin at top of page; trap-invoked

*Style
 COLOR Change color of text to predefined value
 CONDENSE Set percentage of pseudo-condense (alias of
 CONDENSE_OR_EXTEND)
 EXTEND Set percentage of pseudo-extend (alias of
 CONDENSE_OR_EXTEND)
 FAMILY Family
 FT Font
 FALLBACK_FONT Font to use whenever FAMILY or FT errors occur
 LL Line length
 LS Leading (.vs)
 NEWCOLOR Define a text color
 PT_SIZE Point size
 SETBOLDER Set degree of emboldening (pseudo-bold) in units
 SETSLANT Set degree of pseudo-italic
 XCOLOR Initialize a color from rgb.txt

*Autolead
 AUTOLEAD Always lead n points more than .PT_SIZE

*Quad, fill, justification
 JUSTIFY Justified text
 QUAD Filled text, left, right, or centre

*Quad, no-fill
 CENTER Line-for-line, non-filled text, centre
 LEFT Line-for-line, non-filled text, left
 RIGHT Line-for-line, non-filled text, right

*Hyphenation
 HY Turn hyphenation on/off, or set LINES, MARGIN, SPACE
 HY_SET Set LINES, MARGIN, SPACE in a single command

*Advanced style
 KERN Turn automatic kerning on or off
 LIGATURES Turn ligatures on or off
 SS Sentence space control
 WS Word space control

*Line breaks
 BR Alias of br
 EL Breaks line but doesn't advance
 SPACE Alias of sp
 SPREAD Alias of brp

*Vertical motions
 ALD Advance lead
 RLD Reverse lead

*Indents
 HI Indent hang
 IB Indent both
 IBX Indent both off
 IL Indent left
 ILX Indent left off
 IQ Indents off
 IR Indent right
 IRX Indent right off
 IX Indents off -- deprecated
 TI Indent temporary

*Tabs
 ST String tab
 TAB_SET Tab Set
 TN Tab Next
 TQ Tab Quit

*Columnar tabs
 MCO Turn on multi-column mode
 MCR Return to top of column
 MCX Turn off multi-column mode

*Underscore
 UNDERSCORE Underscores words or phrases
 UNDERSCORE2 Double underscores words or phrases

*Underline
 UNDERLINE Underlines whole passages (Courier only)

*Smart Quotes
 SMARTQUOTES Turns smart quotes on or off

*Graphical objects
 RULE_WEIGHT Weight of rules drawn with \*[RULE]
 DBX Draw box
 DCL Draw circle (ellipse)
 DRH Draw horizontal rule
 DRV Draw vertical rule

*Misc + Support
 BR_AT_LINE_KERN Deposit a break before RW and WE
 CAPS Convert u/lc to UC
 COMMENT Don't print lines till COMMENT OFF (alias of SILENT)
 DROPCAP_ADJUST Points (poss. fractional) to add/subtract
 from drop caps
 DROPCAP Create drop cap
 DROPCAP_FAMILY Drop cap family
 DROPCAP_FONT Drop cap font
 DROPCAP_GUTTER Drop cap gutter
 DROPCAP_OFF Support only; restores .in if there was one
 ESC_CHAR Alias for .ec
 EW Extra white -- loosen overall line kern
 (character spacing)
 LEADER_CHARACTER Sets leader character
 PAD Insert padding spaces at marked places
 PADMARKER Sets character to use instead of # in PAD
 PRINT Simply prints args passed to it; keeps my code
 indented nicely
 RW Reduce white -- tighten overall line kern
 (character spacing)
 SILENT Don't print lines till SILENT OFF
 SIZESPECS Get cap-height, x-height and descender depth for
 current point size
 SUPERSCRIPT_RAISE_AMOUNT Change default vertical displacement of superscripts
 TRAP Turn traps off or on

+++DIVERSIONS+++

NO_FLASH    Diverts output of SILENT or COMMENT so they don't print
  NULL        Diverts SIZESPECS in PRINT_HDRFTR so it doesn't screw up
                FOOTER and FOOTNOTE processing when FOOTERS are on
  PAD_STRING  Diverts $PAD_STRING for processing
  TYPESIZE    Diverts SIZESPECS routine so it doesn't print

+++NUMBER REGISTERS+++

#ABORT_FT_ERRORS        Abort on FT errors? (boolean)
  #ALD                    ALD value
  #ARGS_TO_LIST           Tells LIST whether LIST was invoked with a valid
                            arg; controls LIST OFF processing
  #ARGS_TO_SQ             Tells SMARTQUOTES whether it was invoked with a
                            valid arg; controls SMARTQUOTES OFF
                            processing
  #AUTOLEAD_FACTOR        Using FACTOR arg to AUTOLEAD? (boolean)
  #AUTO_LEAD              Using autolead? (boolean)
  #AUTOLEAD_VALUE         Auto leading value
  #BL_INDENT              Value of left indent when IB
  #B_MARGIN               Bottom margin
  #B_MARGIN_SET           Has a bottom margin been set with B_MARGIN? (boolean)
  #BOLDER_UNITS           Number of units to embolden type
  #BR_AT_LINE_KERN        Break when EW/RW are invoked? (boolean)
  #BR_INDENT              Value of right indent when IB
  #BX_SOLID               Draw box filled? (boolean)
  c                       column mark
  #CAPS_ON                Is CAPS enabled? (boolean)
  #CL_SOLID               Draw cirlce filled? (boolean)
  #CODE_FAM               Use different family from Courier for CODE? (boolean)
  #CODE_FT                Use different font from roman for CODE? (boolean)
  #CONDENSE               Are we in pseudo-condense mode? (boolean)
  #CONDENSE_WAS_ON        For restoring \*[COND] in DROPCAP
  #COND_WIDTH             Width of pseudo-condensed type
                            (pointsize x $COND_PERCENT)
  #CURRENT_HY             \\n[.hy] when ref*normal-print called
  #CURRENT_L_LENGTH       Current line length at first invocation of LIST;
                            like #ORIG_L_LENGTH
  #CURRENT_TAB            Current tab number
  #DC_COLOR               Colorize dropcap? (boolean)
  #DC_GUT                 Width of dropcap gutter
  #DC_HEIGHT              Dropcap height
  #DC_LINES               Number of lines for dropcap
  #DEGREES                # of degrees slant for pseudo-italic
  #ENUMERATOR&lt;n&gt;          Number register enumerator for depth &lt;n&gt; in lists 
  #EW                     Is EW in effect? (boolean)
  #EXT_WIDTH              Width of pseudo-extended type
                            (pointsize x $EXT_PERCENT)
  #EXTEND                 Are we in pseudo-extend mode? (boolean)
  #EXTEND_WAS_ON          For restoring \*[EXT] in DROPCAP
  #FILL_MODE              Which fill mode are we in? ( \n[.j] )
  #FILLED                 Are we in a fill mode? (boolean)
  #H_INDENT               Value of left indent when IH
  #HL_INDENT&lt;n&gt;           Hanging indent for LIST depth &lt;n&gt;
  #HL_INDENT              Value of the hang when IH
  #HY_SET                 Did we manually set hyphenation parameters?
                            (boolean)
  #HYPHEN_ADJ             Amount by which to raise hyphens surrounding page
                            numbers
  #HYPHENATE              Hyphenation on? (boolean)
  #IN_ITEM                Are we in a list item? (boolean)
  #IN_ITEM_L_INDENT       Value passed to IL if #IN_ITEM=1
  #IN_TAB                 Are we in a tab? (boolean)
                            Set in macro TAB; used in ST to determine
                            whether to add #ST_OFFSET to #ST&lt;n&gt;_OFFSET
  #INDENT_ACTIVE          Indicates whether an indent is active (boolean)
  #INDENT_BOTH_ACTIVE     Toggle
  #INDENT_LEFT_ACTIVE     Toggle
  #INDENT_RIGHT_ACTIVE    Toggle
  #INDENT_STYLE_BOTH      Indicates IB when #INDENT_ACTIVE=1 (boolean)
  #INDENT_STYLE_HANG      Indicates IH when #INDENT_ACTIVE=1 (boolean)
  #INDENT_STYLE_LEFT      Indicates IL when #INDENT_ACTIVE=1 (boolean)
  #INDENT_STYLE_RIGHT     Indicates IR when #INDENT_ACTIVE=1 (boolean)
  #INDENT_STYLE_TEMP      Indicates IT when #INDENT_ACTIVE=1 (boolean)
  #IGNORE_COLUMNS         Don't set document in columns (boolean)
  #IN_DIVER               Are we in a diversion? (boolean)
  #IX_WARN                Toggles to 1 the first time IX is user-invoked
  #JUSTIFY                In EW/RW, when BR_AT_LINE_KERN, whether to
                            break or break-spread preceding line (boolean)
  #KERN                   Kern on? (boolean)
  #KERN_UNIT              Size of kern units (1/36 of current point size)
  #KERN_WAS_ON            Indicates kerning was on; used in list ITEMs (boolean)
  #LAST_TAB               Last tab number set in multi-columns
  #LAST_FN_COUNT_FOR_COLS #FN_COUNT_FOR_COLS at top of HEADER
  #LEAD                   Leading (alias)
  #LIGATURES              Ligatures on? (boolean)
  #LIST_INDENT&lt;n&gt;         Left indent of list &lt;n&gt;
  #L_INDENT               Value of left indent
  #L_LENGTH               Line length
  #L_MARGIN               Page offset if set with LMARGIN;
                            if .po used, \n[.o] returns page offset
  #LOOP                   In EPIGRAPH, #LOOP=1 if a while loop executes;
                            otherwise 0.  Elsewhere, an arbitrary incrementing
                            register used to read in strings
  #MCX_ALD                Amount to advance past end of longest column
  #NEWPAGE                Was NEWPAGE just invoked? (boolean)
  #NEXT_DEPTH_BACK        Next list level back in lists
  #NEXT_TAB               Current tab number + 1 (used in TN)
  #NEXT_TAB               Next tab in an n+1 sequence
  #NOFILL                 Are we in a nofill mode? (boolean)
  #NOFILL_MODE            Nofill mode
  #OLD_LEAD               Lead in effect prior to changing it with .vs
                            in .LS or .AUTOLEAD
  #OPEN_CLOSE             Manipulates character " to print `` or ''
  #ORIGINAL_L_LENGTH      Used in LIST for IB processing; holds \n[.l]
  p                       Output line horiz position at end of
                            $PAD_STRING
  #PAD_COUNT              Number of times # was included in arg to PAD
  #PAD_LIST_DIGITS        Pad list digits to the left? (boolean)
  #PAD_SPACE              Size of padding space
  #PAGE_LENGTH            Page length (alias)
  #PAGE_WIDTH             Page width
  #PP_ACTIVE              Are we in the context of a para? (boolean)
  #PRINT_FOOTER_ON_PAGE_1 (boolean)
  #PSEUDO_FILL            Signals that LEFT, RIGHT or CENTER is
                            in effect (booleand off, i.e. to 0, when
                            QUAD &lt;arg&gt; or JUSTIFY is called)
  #PT_SIZE                Point size (fractional) in units (alias)
  #Q_AT_TOP               Does a quote start at the top of a new page?
                            (boolean)
  #QUAD                   In autoquad mode? (boolean)
  #QUIT                   Tells LIST whether to exit lists completely
                            (boolean)
  #REMOVE                 Used in LIST OFF cleanup
  #RESTORE_FILL           Used to restore \[.u] state if temporarily changed
  #RESTORE_LEAD           Lead value in effect prior to AUTOLEAD
  #RESTORE_LINE_LENGTH    Restores actual line length in RULE
  #RESTORE_LN_NUMBER      Start linenumbering again with stored
                            #NEXT_LN? (boolean)
  #RESTORE_PT_SIZE        Stores current point size (in units) prior
                            to underscore
  #R_INDENT               Value of right indent
  #R_MARGIN               Right margin
  #RESTORE_PREV_INDENT    Tells LIST OFF what kind of indent was active
                            prior to first invocation of LIST
  #RESTORE_TRAP           Did we have to disable traps? Used in
                            graphical object macros (boolean)
  #RESTORE_SQ             Instructs SMARTQUOTES to restore smartquotes if
                            SMARTQUOTES invoked without an arg
  #RLD                    RLD value
  #RULE_WEIGHT            Weight given to RULE_WEIGHT
  #RULE_WEIGHT_ADJ        RULE_WEIGHT/2
  #RW                     Is RW in effect? (boolean)
  #SHIFT_LIST&lt;n&gt;          Value to add to #LIST_INDENT&lt;n&gt; for shifted lists
  #SILENT                 Is silent on? (boolean)
  #SIZE_FOR_PAD           Used to ensure that the size in effect prior
                            to PAD is restored at the start of every
                            iteration of $PAD_STRING
  #SLANT_ON               Is SLANT on? (boolean)
  #SPACE_TO_END           Whitespace at end of string passed to PAD
  #SQ_WAS_ON              Instructs CODE OFF to restore smartquotes if they
                            were on prior to CODE
  #ST&lt;n&gt;_LENGTH           Length of ST&lt;n&gt;; calculated during ST &lt;n&gt;
  #ST&lt;n&gt;_MARK             Page offset of autotab &lt;n&gt; at ST&lt;n&gt;X
  #ST_NUM                 Incrementing counter for autotab identification
  #ST&lt;n&gt;_OFFSET           Offset (from current tab) to add to #ST&lt;n&gt;_OFFSET
                            when calculating string indents set from within
                            tabs
  #ST&lt;n&gt;_OFFSET           Indent of autotab &lt;n&gt; (page offset)
  #STORED_L_INDENT        Current left indent at first invocation of LIST
  #STORED_R_INDENT        Current right indent at first invocation of LIST
  #STORED_BL_INDENT       Current "both, left" indent at first invocation
                            of LIST
  #STORED_BR_INDENT       Current "both, right" indent at first invocation
                            of LIST
  #STORED_HL_INDENT       Current hanging indent at first invocation
                            of LIST
  #STORED_T_INDENT        Current temporary indent at first invocation
                            of LIST
  #STR_LENGTH             Holds string length derived from .length request
  tbl                     Are we in a tbl? (boolean)
  #T_INDENT               Value of temporary indent
  #T_MARGIN               Top margin
  #TAB_ACTIVE             Are we in a tab? (boolean)
  #TAB_NUMBER             Tab number given to TAB_SET
  #TAB_LENGTH             Tab length given to TAB_SET
  #TAB_OFFSET             Tab indent given to TAB_SET
  #TEXT_WIDTH             Width of string to underscore
  #TN                     Was TN (or \*[T+] called? (boolean)
  #TOP                    Set to 1 in T_MARGIN, DO_T_MARGIN and ALD; tells
                            the first LS or AUTOLEAD on a page to maintain
                            the baseline position prior to the LS call
  #TOP_BASELINE_ADJ       Amount by which to adjust the baseline position
                            of the first line on the page if an LS or AUTOLEAD
                            request differs from the lead current at the end of
                            the previous page
  #TOTAL_LISTS            Total number of lists in a nest
  #UNDERSCORE_WEIGHT      Weight of underscores
  #UNDERSCORE_WEIGHT_ADJ  UNDERSCORE_WEIGHT/2
  #USER_SET_L_LENGTH      Did user invoke LL? (boolean)
  #USER_SET_TITLE_ITEM    Did user invoke TOC_TITLE_ENTRY?
  #WEIGHT                 Weight given to #RULE_WEIGHT
  #WEIGHT_ADJ             RULE_WEIGHT/2
  u                       Horiz position of start of underscore

+++STRINGS+++

$ARG                  String holding substrings derived from .substring
                          request
  $COND_PERCENT         Percentage by which to pseudo-condense type
  $COLOR_SCHEME         Color scheme used in NEWCOLOR
  $&lt;colorname&gt;_FILL     XCOLOR "alias" with _FILL attached; used to determine if
                          the alias exists when the alias is passed to DBX SOLID
                          or DCL SOLID
  $CURRENT_QUAD         Restores current quad value in RULE
  $CURRENT_TAB          Current tab number
  $DC_ADJUST            +|- # of points to subtract from dropcap
  $DC_FAM               Drop cap family
  $DC_FT                Drop cap font
  $DROPCAP              The dropcap letter
  $ENUMERATOR&lt;n&gt;        String enumerator for depth &lt;n&gt; in lists 
  $ENUMERATOR_TYPE&lt;n&gt;   Type of enumerator used in LIST&lt;n&gt;
  $EW                   Value passed to EW
  $EXT_PERCENT          Percentage by which to pseudo-extend type
  $FAMILY               Family
  $FAMILY_FOR_PAD       Used to ensure that the family in effect prior
                          to PAD is restored at the start of every
                          iteration of $PAD_STRING
  $FONT                 Font
  $FONT_FOR_PAD         Used to ensure that the font in effect prior
                          to PAD is restored at the start of every
                          iteration of $PAD_STRING
  $PAD_MARKER           Character to mark off padding in PAD
  $PAD_STRING           Arg passed to PAD
  $PREFIX&lt;n&gt;            Prefix for enumerator of LIST&lt;n&gt;
  $QUAD_VALUE           Quad value (left, right, centre, justify)
  $QUOTE0               Open quotation marks
  $QUOTE1               Close quotation marks
  $RESTORE_COND         Restores the pseudo-condense value in effect
                          prior to DROPCAP
  $RESTORE_EXT          Restores the pseudo-extend value in effect
                          prior to DROPCAP
  $RESTORE_FAM          Used to restore the family in effect
                          prior to DROPCAP
  $RESTORE_FT           Used to restore the font/fontstyle in effect
                          prior to DROPCAP
  $RESTORE_PT_SIZE      Used to restore the point size of normal
                          running text after a dropcap
  $RESTORE_QUAD_VALUE   Quad value for use in restoring L, R, C, J
                          (after tabs)
  $RESTORE_SQ           The smartquoting string last passed to SMARTQUOTES
  $RULE_GAP             Distance between underscore rules
  $RW                   Value passed to RW
  $SAVED_STYLE          Current style, if there is one (used in FAMILY)
  $SAVED_UNDERSCORE_GAP Temporarily holds string in $UNDERSCORE_GAP
  $SEPARATOR&lt;n&gt;         Separator for depth &lt;n&gt; in lists
  $SS_VAR               Holds + or - sentence space value
  $ST&lt;n&gt;_FILL           Always QUAD if QUAD passed to ST &lt;n&gt;
  ST\n[#LOOP]           Used to initialize string tab markers (1-19)
  ST\n[#LOOP]X          Used to initialize string tab markers (1-19)
  $ST&lt;n&gt;_QUAD_DIR       Quad direction supplied to ST for &lt;n&gt;
  $SUP_LOWER            Vertical displacement amount of superscripts
  $SUP_RAISE            Vertical displacement amount of superscripts
  $SUP_RAISE_AMOUNT     Argument passed to SUPERSCRIPT_RAISE_AMOUNT
  $TAB_NUMBER           Argument passed to TAB macro to call TAB# macro
                          created in TAB_SET
  $UNDERSCORE_GAP       Distance between text and underscore rule
  $WS_CONSTANT          12; used to hold groff default wordspace
  $WS                   Holds WS value; concatenation of WS_CONSTANT and
                          WS_VAR
  $WS_VAR               + or - value to add to $WS_CONSTANT
  BLACK                 Pre-defined black color
  black                 Pre-defined black color
  WHITE                 Pre-defined white color
  white                 Pre-defined white color

+++ALIASES+++

ALIAS         als
  ALIASN        aln
  BR            br
  CENTRE        CENTER
  COLOUR        COLOR
  COMMENT       SILENT
  CONDENSE      CONDENSE_OR_EXTEND
  EXTEND        CONDENSE_OR_EXTEND
  FAM           FAMILY
  FT            FONT
  HYPHENATE     HY
  HYPHENATION   HY
  INCLUDE       so
  LIG           LIGATURES
  LL            LINE_LENGTH
  MAC           de
  NEW_PAGE      bp
  NEWCOLOUR     NEWCOLOR
  NEWPAGE       NEW_PAGE
  PAGELENGTH    PAGE_LENGTH
  PAGE_LENGTH   pl
  PAGEWIDTH     PAGE_WIDTH
  SPREAD        brp
  SP            sp
  STRING        ds
  TABSET        TAB_SET
  TB            TAB
  TI            IT
  UNDERSCORE_2  UNDERSCORE2
  XCOLOUR       XCOLOR

+++ALIASES FOR NUMBER REGISTERS+++

#DIVER_DEPTH    dn   -- diversion depth
  #DIVER_WIDTH    dl   -- diversion width
  #INDENT         .i   -- value of current indent
  #LEAD           .v   -- line space (.vs, not .ls)
  #L_LENGTH       .l   -- line length
  #NUM_ARGS       .$   -- number of arguments passed to a macro
  #PAGE_LENGTH    .p   -- page length
  #PT_SIZE        .ps  -- current point size (fractional) in units
  #TRAP_DISTANCE  .t   -- distance to next trap

+++INLINE ESCAPES+++

ALD&lt;n&gt;       Move down inline by &lt;n&gt; (between .25 and 12.75)
  B            Inline equivalent to .EL
  BCK          Inline backward horizontal movement
  BD           Bold font
  BDI          Bold italic font
  BLACK        Color
  black        color
  BOLDER       Pseudo-bold on
  BOLDERX      Pseudo-bold off
  BP           Back points (horizontal movement)
  BP&lt;n&gt;        Back points by  &lt;n&gt; (between .25 and 12.75)
  BU           Back units (inline pairwise kerning)
  BU&lt;n&gt;        Back units by &lt;n&gt; (between 1 and 36)
  COND         Pseudo-condense type
  COND_FOR_SUP Pseudo-condense string for use with superscripts
                 (called with CONDSUP)
  COND_FOR_SUP Pseudo-extend string for use with superscripts (called
                 with EXTSUP)
  CONDSUP      Pseudo-condensed superscript (using value set with
                 CONDENSE)
  CONDSUPX     Pseudo-condensed superscript off
  CONDX        Pseudo-condense off
  DOWN         Inline downward vertical movement
  EN-MARK      Inline escape to indicate the beginning of a
                 range of lines used to identify an endnote
  EXT          Pseudo-extend type
  EXTX         Pseudo-extend off
  EXTSUP       Pseudo-extended superscript
  EXTSUPX      Pseudo-extended superscript off
  FN-MARK      Inline escape to indicate the beginning of a
                 range of lines used to identify a footnote
  FP&lt;n&gt;        Forward points by  &lt;n&gt; (between .25 and 12.75)
  FP           Forward points (horizontal movement)
  FU           Forward units (inline pairwise kerning)
  FU&lt;n&gt;        Forward units by &lt;n&gt; (between 1 and 36)
  FWD          Inline forward horizontal movement
  PREV         Return to previous font in effect
  RLD&lt;n&gt;       Move up, inline, by &lt;n&gt; (between .25 and 12.75)
  ROM          Roman (medium) font
  S            Same \s
  SLANT        Slant (pseudo-italic on
  SLANTX       Slant off
  ST&lt;n&gt;        String tab end marker
  ST&lt;n&gt;        String tab start marker
  SUP          Superscript
  SUPX         Superscript off
  TB+          Move to next tab number (n+1) without advancing on the page
  UP           Inline upward vertical movement
  WHITE        Color
  white        Color

+++SPECIAL CHARACTERS+++

FOOT The foot character \(fm
 INCH The inch character \(fm\(fm
 LEADER Deposit leader to end of current LL or TAB
 RULE Draw a rule to the full measure of the current line or
 tab length
DOCUMENT PROCESSING
+++MACROS+++
*Document info (reference macros)
 AUTHOR Author
 CHAPTER Chapter number
 CHAPTER_TITLE Chapter title
 COPYRIGHT Copyright info (covers only)
 DOCTITLE Overall doc title (for collated docs)
 DRAFT Draft number
 MISC Misc info (covers only)
 REVISION Revision number
 SUBTITLE Doc subtitle
 TITLE Doc title

*Covers
 COVER What goes on cover
 COVERS Whether covers get printed (boolean)
 COVER_ADVANCE Set vertical start position of cover material
 COVER_LEAD Overall leading of covers
 COVERTITLE User-defined cover title string
 DOC_COVER What goes on doc cover
 DOC_COVERS Whether doc covers get printed
 DOC_COVER_ADVANCE Set vertical start position of doc cover material
 DOC_COVER_LEAD Overall leading of doc covers
 DOC_COVERTITLE User-defined doc cover title string

*Document style
 COPYSTYLE Output style (DRAFT or FINAL)
 DEFAULTS In START, sets defaults
 DOCTYPE Kind of doc (DEFAULT, CHAPTER, NAMED, LETTER)
 PAGENUMBER Page number that appears on 1st page of doc
 PAPER Paper size (LETTER, LEGAL, A4)
 PRINTSTYLE Print style (TYPEWRITE or TYPESET)
 NUMBER_LINES Number output lines in the left margin

*Document tags and macros
 ADD_SPACE Special macro to add space to the top of a pages after
 page 1; must be preceded by NEWPAGE
 BIBLIOGRAPHY Begin a bibliography page
 BIBLIOGRAPHY_TYPE LIST or PLAIN
 BLOCKQUOTE Block-indented, quoted text
 COL_BREAK Breaks and spreads line before invocation; moves to
 next column on page or 1st col of next page. An
 alias of COL_NEXT.
 COL_NEXT Moves to next column on page or 1st col of next page
 ENDNOTE Endnote
 ENDNOTE_REFS Send REFs to endnotes
 ENDNOTES Output endnotes
 EPIGRAPH Epigraph before 1st para 
 EQ/EN eqn block
 FINIS Prints --END--
 FLOAT Keep material together as a block; defer output
 to following page if not enough room to print
 FOOTNOTE Collects footnotes in text for printing at bottom
 of page
 FOOTNOTE_REFS Send REFs to footnotes
 HEAD Section title (main heads)
 HYPHENATE_REFS Turn on/off hyphenation of REF references
 ITEM Begin a list item
 LINEBREAK Break between narrative sections
 LIST Initialize a list
 MN Margin note
 MN_INIT Initialize parameters for margin notes
 NUMBER_LINES Number text lines
 NUMBER_BLOCKQUOTE_LINES Number blockquote lines
 NUMBER_QUOTE_LINES Number quote lines
 PAD_LIST_DIGITS Leave space for two-numeral digit enumerators
 in a list
 PARAHEAD Paragraph head
 PP Paragraph
 QUOTE Poetic or line for line quotes
 REF Wrapper around FOOTNOTE or ENDNOTE, depending
 on FOOTNOTE_REFS or ENDNOTE_REFS
 REF( Begin embedded reference, parens
 REF) End embedded reference, parens
 REF[ Begin embedded reference, square brackets
 REF] End embedded reference, square brackets
 REF{ Begin embedded reference, braces
 REF} End embedded reference, braces
 REF_INDENT Amount of 2nd line indent of references for
 footnote, endnote or bibliography refs
 RESET_LIST Reset digit or alpha list enumerator
 SHIFT_LIST Move a list over to the right
 START Sets doc defaults and prints info collected
 with doc info macros
 SUBHEAD Subheads
 SUBSUBHEAD Subsubheads
 TH Running tbl header
 TS/TE Begin/end a tbl block

*Headers/footers
 DO_FOOTER Prints footer (after footnote processing, if any)
 FOOTER_ON_FIRST_PAGE Print footer on first page? (boolean)
 FOOTER Trap-invoked footer macro
 HEADER Trap-invoked header macro
 PAGINATE Turns page numbering on or off (doc default=on)
 PAGINATE_TOC Turns pagination of toc on or off (default=on)
 RECTO_VERSO Enables switch HEADER_LEFT and HEADER_RIGHT on
 alternate pages

*Control macros
-General-
 ALWAYS_FULLSPACE_QUOTES Fullspace quotes instead of default
 1/2 spacing them.
 ATTRIBUTE_STRING What to print before author (default is "by")
 CHAPTER_STRING What to print whenever the word "chapter"
 is required
 COLUMNS Print in columns
 DOC_FAMILY Overall doc family
 DOCHEADER Print doc header?
 DOCHEADER_ADVANCE Start position of docheader (relative to top
 of page)
 DOCHEADER_LEAD +|- value applied to #DOC_LEAD to in/decrease
 leading of doc header
 DOC_LEAD_ADJUST Adjust #DOC_LEAD to fill page to #B_MARGIN
 DOC_LEAD Overall doc leading
 DOC_LEFT_MARGIN Doc left margin
 DOC_LINE_LENGTH Doc line length
 DOC_PT_SIZE Overall doc point size
 DOC_RIGHT_MARGIN Doc right margin
 DOC_TITLE Overall doc title that gets printed in
 headers/footers (mostly for use with collated
 docs where each doc is an article with a
 different title
 DRAFT_STRING What to print whenever the word "draft" is
 required
 DRAFT_WITH_PAGENUMBER Attach draft/revision info to page number
 (instead of putting it HEADER centre)
 REVISION_STRING What to print whenever the word "revision"
 is required

-Covers-
   COVER_ADVANCE            Vertical place on page to start outputting
                              cover material
   COVER_LEAD               Lead in/decrease for cover pages
   COVERS_COUNT_PAGES       Whether to include cover pages in pagination scheme
   DOC_COVER_ADVANCE        Vertical place on page to start outputting
                              doc cover material
   DOC_COVER_LEAD           Lead in/decrease for doc cover pages
   DOC_COVERS_COUNT_PAGES   Whether to include doc cover pages in pagination
                              scheme

-Epigraphs and finis-
  EPIGRAPH_AUTOLEAD        Autolead value for epigraphs
  EPIGRAPH_INDENT          Value by which to multiply PP_INDENT for
                             block epigraphs
  FINIS_STRING             What to print when FINIS is invoked
  FINIS_STRING_CAPS        Whether to capitalize the finis string

-eqn-
  EQ_INDENT                Indent value if 'EQ I'

-Footnotes-
  FOOTNOTE_AUTOLEAD             Autolead to use in footnotes
  FOOTNOTE_LINENUMBER_BRACKETS  Brackets for footnote linenumbers
  FOOTNOTE_LINENUMBER_SEPARATOR Separator for footnote linenumbers
  FOOTNOTE_MARKERS              Turns footnote markers on or off
  FOOTNOTE_MARKER_STYLE         STAR or NUMBER; default=STAR
  FOOTNOTE_RULE_ADJ             # of points to raise footnote rule from its
                                  baseline
  FOOTNOTE_RULE_LENGTH          Length of footnote separator rule
  FOOTNOTE_RULE                 Turns printing of fn separator rule on or off;
                                  default is on
  FOOTNOTE_SPACING              Post footnote item spacing
  FOOTNOTES_RUN_ON              Run footnotes on (line numbering mode only)
  RESET_FOOTNOTE_NUMBER         Reset fn# to 1, or, if arg PAGE, reset
                                  automatically to 1 on every page
  RUNON_WARNING                 Utility macro; warns if FOOTNOTES_RUN_ON
                                  was called when fn marker style is STAR or
                                  NUMBER

-Endnotes-
  ENDNOTE_LEAD                 Leading for endnotes page
  ENDNOTE_LINENUMBER_BRACKETS  Brackets around line numbers identifying
                                 endnotes and text
  ENDNOTE_LINENUMBER_GAP       Amount of space to leave between line
  ENDNOTE_LINENUMBER_SEPARATOR Separator between line numbers identifying
                                 endnotes and the endnote item text
                                 endnotes and text
  ENDNOTE_MARKER_STYLE         NUMBER or LINE
  ENDNOTE_NUMBERS_ALIGN_RIGHT  Hang endnote numbers and align right
  ENDNOTE_NUMBERS_ALIGN_LEFT   Don't hang endnote numbers and align left
  ENDNOTE_PARA_INDENT          First line indent of paras in multi-para
                                 endnotes
  ENDNOTE_PARA_SPACE           Whether to space paras in multi-para endnotes
  ENDNOTE_PT_SIZE              Base point size for endnotes page
  FOOTNOTE_SPACING             Post endnotenote item spacing
  ENDNOTE_STRING               Endnotes page head
  ENDNOTE_STRING_ADVANCE       Distance of title string "ENDNOTES" from top
                                 edge of page
  ENDNOTE_STRING_CAPS          Capitalize the endnotes string
  ENDNOTE_STRING_UNDERLINE     Underscoring of endnotes page head
  ENDNOTE_TITLE                Endnotes identifying title
  ENDNOTE_TITLE_SPACE          Distance from top of page to endnotest title
  ENDNOTE_TITLE_UNDERLINE      Underscoring of endnotes identifying title
  ENDNOTES_ALLOWS_HEADERS      Page headers on endnotes pages? (boolean)
  ENDNOTES_FIRST_PAGENUMBER    Page number to appear on page 1 of endnotes
                                 pages
  ENDNOTES_HDRFTR_CENTER       Print header/footer centre string on endnotes
                               pages?
  ENDNOTES_HEADER_CENTER       Print header centre string on endnotes pages?
  ENDNOTES_FOOTER_CENTER       Print footer centre string on endnotes pages?
  ENDNOTES_NO_COLUMNS          Turn columnar mode off for endnotes pages
  ENDNOTES_NO_FIRST_PAGENUM    Don't print a pagenumber on page 1 of
                                 endnotes.
  ENDNOTES_PAGENUM_STYLE       Set numbering style for endnotes pages page
                                 numbers
  SINGLESPACE_ENDNOTES         Single space TYPEWRITE endnotes

-Bibliographies-
  BIBLIOGRAPHY_ALLOWS_HEADERS    Allow headers on bib pages
  BIBLIOGRAPHY_FIRST_PAGENUMBER  Starting page number for bibliographies
  BIBLIOGRAPHY_HDRFTR_CENTER     Header/footer center string for bib pages
  BIBLIOGRAPHY_LEAD              Base lead of bib pages
  BIBLIOGRAPHY_NO_COLUMNS        De-columnize bibliographies
  BIBLIOGRAPHY_NO_FIRST_PAGENUM  Don't print a page number on the first
                                   page of bibliographies
  BIBLIOGRAPHY_PAGENUM_STYLE     Format for bib pages page numbering
  BIBLIOGRAPHY_PT_SIZE           Base point size for bib pages
  BIBLIOGRAPHY_SPACING           Post bib entry space
  BIBLIOGRAPHY_STRING            String for bib title
  BIBLIOGRAPHY_STRING_ADVANCE    Distance of title string "BIBLIOGRAPHY" from
                                   top edge of page
  BIBLIOGRAPHY_STRING_CAPS       Capitalize bib title string
  BIBLIOGRAPHY_STRING_UNDERLINE  Underscore bib title string
  SINGLESPACE_BIBLIOGRAPHY       Singlespace bibs if PRINTSTYLE TYPEWRITE

-Headers and footers-
  FOOTER_COLOR             Footer color
  FOOTER_GAP               Distance between running text and footer
  FOOTER_MARGIN            Distance from footer to bottom of page
  FOOTERS                  Turns footers on or off
  HDRFTR_CENTER            String to go in centre part of header/footer;
                             default doctype 
  HDRFTR_CENTER_CAPS       Centre part of header/footer in caps? (boolean)
  HDRFTR_CENTER_PAD        Pad hdrftr CENTER left or right by specified
                             amount
  HDRFTR_GAP               Distance from header/footer to running text
  HDRFTR_LEFT_CAPS         Left part of header/footer in caps? (boolean)
  HDRFTR_LEFT              String to go in left part of header/footer;
                           default is AUTHOR_1
  HDRFTR_LEFT              The header/footer left string
  HDRFTR_MARGIN            Distance from top of page to header
  HDRFTR_PLAIN             Header/footer fam/ft/ps all same as running
                             text
  HDRFTR_RECTO             User-defined, single string recto
                             header/footer
  HDRFTR_RIGHT_CAPS        Right part of header/footer in caps? (boolean)
  HDRFTR_RIGHT             The header/footer right string
  HDRFTR_RULE_GAP          Space between header/footer and header/footer
                             rule
  HDRFTR_RULE_INTERNAL     Prints the header/footer rule
  HDRFTR_RULE              Turns header/footer rule on or off
                             When invoked internally, prints the rule.
  HDRFTR_VERSO             User-defined, single string verso
                             header/footer
  HEADERS                  Turns headers on or off
  HEADER_GAP               Space between header and running text
  HEADER_MARGIN            Space from top of page to header
  HEADERS_AND_FOOTERS      Enables and permits the creation of
                             headers and footers that appear on the
                             same page
  SWITCH_HDRFTR            Switch HDRFTR_LEFT and HDRFTR_RIGHT

-Page numbering-
  PAGENUM_HYPHENS          Turns on/off hyphens surrounding page numbers
  PAGENUM_ON_FIRST_PAGE    Print page number on first page when footers
                             are on (boolean)
  PAGENUM_POS              Controls placement of page numbers;
                             default=bottom/centred
  PAGENUM_SIZE             How much to in/decrease point size of page
                             numbers
  PAGENUM_STYLE            Page # in roman, Arabic, or alphabetic
  RESTORE_PAGINATION       Restore pagination after outputting non-
                             paginated endnotes.
  SUSPEND_PAGINATION       Suspend pagination prior to outputting
                             endnotes

-Heads-
  HEAD_CAPS                Print section titles in caps? (boolean)
  HEAD_SPACE               Give HEADs 2 line-spaces before. If OFF,
                             only 1.  Default is on.
  HEAD_UNDERLINE           Underline section titles? (boolean)
  NUMBER_HEADS             Print head numbers
  RESET_HEAD_NUMBER        Reset head number
  HEAD_BASELINE_ADJUST     Amount to raise head above baseline

-Subheads-
  NUMBER_SUBHEADS          Print subhead numbers
  RESET_SUBHEAD_NUMBER     Reset subhead number
  SUBHEAD_BASELINE_ADJUST  Amount to raise subhead above baseline

-Subsubheads-
  NUMBER_SUBSUBHEADS          Print subhead numbers
  RESET_SUBSUBHEAD_NUMBER     Reset subhead number
  SUBSUBHEAD_BASELINE_ADJUST  Amount to raise subhead above baseline

-Para heads-
  NUMBER_PARAHEADS         Print parahead numbers
  PARAHEAD_INDENT          How much to indent paraheads
  RESET_PARAHEAD_NUMBER    Reset parahead number

PREFIX_CH_NUM_WARNING    Macro to abort PREFIX_CHAPTER_NUMBER
                             with a warning if the arg to CHAPTER isn't
                             a digit, and user hasn't supplied a digit
                             to PREFIX_CHAPTER_NUMBER
  PREFIX_CHAPTER_NUMBER    Prefix the chapter number to numbered
                             heads, subheads and paraheads
-Paragraphs-
  INDENT_FIRST_PARAS       Indent 1st paras? (doc default=not indented) 
  PARA_INDENT              Size of para indent
  PARA_SPACE               Put a line space before paras
  PP_FONT                  Overall doc font

-Quotes-
  Q_FITS                  Utility macro for DO_QUOTE
  Q_NOFIT                 Utility macro for DO_QUOTE
  QUOTE_AUTOLEAD          Leading of (block)quotes

-Line/section breaks-
  LINEBREAK_CHAR           Linebreak character, iterations and positioning

-Printstyle TYPEWRITE-
  ITALIC_MEANS_ITALIC      For TYPEWRITE; render .FT I in italic.
  SLANT_MEANS_SLANT        In TYPEWRITE, render \*[SLANT] as slant
  UNDERLINE_ITALIC         In TYPEWRITE, render .FT I as underlined
  UNDERLINE_QUOTES         In TYPEWRITE, underline quotes? (boolean)
  UNDERLINE_SLANT          In TYPEWRITE, render \*[SLANT] as underlined

-Table of contents-
  TOC_APPENDS_AUTHORS      Appends author(s) to toc doc title entries
  TOC_LEAD                 Leading of toc pages
  TOC_PADDING              Number of placeholders for toc entries page
                             numbers
  TOC_HEAD_INDENT          Indent of toc head entries
  TOC_HEADER_STRING        TOC header string (default=Contents)
  TOC_PAGENUM_STYLE        Page numbering style (hdrftr nums) of
                             toc pages
  TOC_RV_SWITCH            Switch L/R margins of toc pages
  TOC_PARAHEAD_INDENT      Indent of toc parahead entries
  TOC_SUBHEAD_INDENT       Indent of toc subhead entries
  TOC_TITLE_ENTRY          User supplied toc doc title entry
  TOC_TITLE_INDENT         Indent of toc doc title entries

*Aliases for header/footer control macros
 HEADER_SIZE HDRFTR_SIZE
 HEADER_RIGHT_PS HDRFTR_RIGHT_SIZE
 HEADER_RIGHT_SIZE HDRFTR_RIGHT_SIZE
 HEADER_RIGHT_FAM HDRFTR_RIGHT_FAMILY
 HEADER_RIGHT_FAMILY HDRFTR_RIGHT_FAMILY
 HEADER_RIGHT_FONT HDRFTR_RIGHT_FONT
 HEADER_RIGHT_FT HDRFTR_RIGHT_FONT
 HEADER_LEFT_PS HDRFTR_LEFT_SIZE
 HEADER_LEFT_SIZE HDRFTR_LEFT_SIZE
 HEADER_LEFT_FAM HDRFTR_LEFT_FAMILY
 HEADER_LEFT_FAMILY HDRFTR_LEFT_FAMILY
 HEADER_LEFT_FONT HDRFTR_LEFT_FONT
 HEADER_LEFT_FT HDRFTR_LEFT_FONT
 HEADER_CENTRE_PS HDRFTR_CENTER_SIZE
 HEADER_CENTRE_SIZE HDRFTR_CENTER_SIZE
 HEADER_FAM HDRFTR_FAMILY
 HEADER_FAMILY HDRFTR_FAMILY
 HEADER_CENTRE_FAM HDRFTR_CENTER_FAMILY
 HEADER_CENTRE_FAMILY HDRFTR_CENTER_FAMILY
 HEADER_CENTRE_FONT HDRFTR_CENTER_FONT
 HEADER_CENTRE_FT HDRFTR_CENTER_FONT
 HEADER_CENTER_PS HDRFTR_CENTER_SIZE
 HEADER_CENTER_SIZE HDRFTR_CENTER_SIZE
 HEADER_CENTER_FAM HDRFTR_CENTER_FAMILY
 HEADER_CENTER_FAMILY HDRFTR_CENTER_FAMILY
 HEADER_CENTER_FONT HDRFTR_CENTER_FONT
 HEADER_CENTER_FT HDRFTR_CENTER_FONT
 FOOTER_SIZE HDRFTR_SIZE
 FOOTER_RIGHT_PS HDRFTR_RIGHT_SIZE
 FOOTER_RIGHT_SIZE HDRFTR_RIGHT_SIZE
 FOOTER_RIGHT_FAM HDRFTR_RIGHT_FAMILY
 FOOTER_RIGHT_FAMILY HDRFTR_RIGHT_FAMILY
 FOOTER_RIGHT_FONT HDRFTR_RIGHT_FONT
 FOOTER_RIGHT_FT HDRFTR_RIGHT_FONT
 FOOTER_LEFT_PS HDRFTR_LEFT_SIZE
 FOOTER_LEFT_SIZE HDRFTR_LEFT_SIZE
 FOOTER_LEFT_FAM HDRFTR_LEFT_FAMILY
 FOOTER_LEFT_FAMILY HDRFTR_LEFT_FAMILY
 FOOTER_LEFT_FONT HDRFTR_LEFT_FONT
 FOOTER_LEFT_FT HDRFTR_LEFT_FONT
 FOOTER_CENTRE_PS HDRFTR_CENTER_SIZE
 FOOTER_CENTRE_SIZE HDRFTR_CENTER_SIZE
 FOOTER_FAM HDRFTR_FAMILY
 FOOTER_FAMILY HDRFTR_FAMILY
 FOOTER_CENTRE_FAM HDRFTR_CENTER_FAMILY
 FOOTER_CENTRE_FAMILY HDRFTR_CENTER_FAMILY
 FOOTER_CENTRE_FT HDRFTR_CENTER_FONT
 FOOTER_CENTER_PS HDRFTR_CENTER_SIZE
 FOOTER_CENTER_SIZE HDRFTR_CENTER_SIZE
 FOOTER_CENTER_FAM HDRFTR_CENTER_FAMILY
 FOOTER_CENTER_FAMILY HDRFTR_CENTER_FAMILY
 FOOTER_CENTER_FONT HDRFTR_CENTER_FONT
 FOOTER_CENTER_FT HDRFTR_CENTER_FONT

+++LETTER MACROS+++

CLOSING         Closing (i.e. Yours truly,)
  CLOSING_INDENT  Left indent of CLOSING
  DATE            Date for letters
  FROM            Addresser's name and address
  GREETING        Full salutation (e.g. Dear John Smith,)
  NO_SUITE        Remove suite page numbers from bottom of letter pages
  SIGNATURE_SPACE Amount of room to leave for signature
  TO              Addressee's name and address
  ALL_DONE        .em (the "end macro") for letters

+++SUPPORT+++

CHECK_INDENT         Applies indents to doc elements inside ev's
                         (head, subhead, etc)
  CLEANUP_DEFAULTS     Removes selected rregisters and strings
                         from DEFAULTS after START
  DO_COVER             Formats and outputs covers
  DO_DOC_COVER         Formats and outputs doc covers
  D0_QUOTE             Outputs quotes with space adjustments before
                         and after
  DIVER_FN_1_PRE  -+     
  DIVER_FN_2_PRE   |   Manage footnotes called inside diversions
                   |   QUOTE, BLOCKQUOTE and EPIGRAPH
  DIVER_FN_2_POST -+
  DIVERT_FN_LEFTOVER   Diverts excess fn stored in FN_OVERFLOW into
                         FOOTNOTE
  DIVERT_FN_OVERFLOW   Diverts excess fn stored in FN_OVERFLOW when
                         FN_DEFER into FOOTNOTE
  DO_EPIGRAPH          Outputs epigraphs with space adjustments before
                         and after
  FN_OVERFLOW_TRAP     Fixed at B_MARGIN; if footnotes run longer than
                         B_MARGIN, diverts excess into FN_OVERFLOW
  GET_ROMAN_INDENT     Figures out amount of space to reserve
                         for roman numerals in lists
  HDRFTR_RULE          Prints rule under header or over footer
  MN_OVERFLOW_TRAP     Trap-invoked macro to collect margin note
                         overflows
  NO_SHIM              Disable SHIM
  PRINT_FOOTNOTE_RULE  An alias of PRINT_FOOTNOTE; prints footnote
                         separator rule
  PRINT_HDRFTR         Prints header/footer (trap invoked)
  PRINT_PAGE_NUMBER    Invoked in HEADER or FOOTER
  PRINT_USERDEF_HDRFTR Prints user defined, single string recto/verso
                         header/footer
  PROCESS_SHIM         Calculates #SHIM when \n[.d] is lower on the
                         page than #T_MARGIN
  PROCESS_FN_IN_DIVER  Processes footnotes gathered in a diversion (called
                         at page/column breaks)
  REMOVE_INDENT        Removes indents set with CHECK_INDENT
  Q_FITS               Handles spacing of quotes when quote fits on the page
  Q_NOFIT              Handles spacing of quotes when quote does not fit on
                         the page
  QUIT_LISTS           Exit lists cleanly and completely
  SET_LIST_INDENT      Restore indent of a prev. level of list
  SHIM                 Advance to next "valid" baseline
  TBL*CLEANUP          Remove selected registers and strings created
                         by TS/TH/TE
  TBL*GET_QUAD         Establish quad of tbl caption
  tbl*float-warning    If tbl in a float exceeds page limits
  tbl*print-header     Administrivia for printing tbl headers
  tbl@top-hook         Trap-invoked (HEADER); prints running tbl header
                         and moves FOOTER/FN_OVERFLOW_TRAP_POS traps
                         to accommodate tbl
  TERMINATE            .em that ensures deferred footnotes get output
                         on final pages
  TRAPS                Sets hdrftr traps; optionally adjusts #DOC_LEAD
                         to fill page to #B_MARGIN
  TYPEWRITER           Sets family (C), font (R) and point size (12)
                         for PRINTSTYLE TYPEWRITE
  VFP_CHECK            Trap-sprung macro, 1 valid baseline higher than
                         where FOOTER will be sprung; checks whether
                         there is, in fact, just enough room for
                         another line of running text to be added to
                         the page without jamming footnotes too close
                         to running text.

+++DIVERSIONS+++

B_QUOTE           Block (indented) quote text
  CLOSING_TEXT      Closing (i.e. Yours truly,)
  EPI_TEXT          Epigraph text
  END_NOTES         Endnotes text
  FLOAT*DIV         Float content
  FN_IN_DIVER       Footnotes gathered from inside a diversion
  FN_OVERFLOW       Excess footnotes when B_MARGIN is reached
  FOOTNOTES         Text of footnotes
  GREETING          Full salutation (e.g. Dear John Smith,)
  LETTERHEAD&lt;n&gt;     Date, addresser, addressee or greeting;
                      &lt;n&gt; is from 1 to 4, supplied by #FIELD
  P_QUOTE           Line for line (poetic) quote text
  RUNON_FOOTNOTES   Special diversion for run-on footnotes
  RUNON_FN_IN_DIVER Special diversion for run-on footnotes inside
                      (block)quotes
  tbl*header-div    Running tbl header
  TOC_ENTRIES       TOC entries

+++NUMBER REGISTERS+++

#ADJ_BIB_LEAD Adjust BIB_LEAD? (boolean)
 #ADJ_DOC_LEAD Adjust DOC_LEAD? (boolean)
 #ADJ_EN_LEAD Adjust EN_LEAD? (boolean)
 #ADJ_TOC_LEAD Adjust TOC_LEAD? (boolean)
 #ADVANCE_FROM_TOP Distance from page top to start of
 running text if no docheader
 #ARG_NUM Keeps track of number of args passed to a
 macro
 #ARGS_TO_LIST Was LIST passed some args? (boolean)
 #ATTRIBUTE_COLOR Colorize attribute string? (boolean)
 #AUTHOR_&lt;n&gt; Strings passed to AUTHOR
 #AUTHOR_COLOR Colorize author(s)? (boolean)
 #AUTHOR_COVER_NUM Incrementing register used in definining
 $AUTHOR_COVER_&lt;n&gt; strings
 #AUTHOR_DOCCOVER_NUM Incrementing register used in definining
 $AUTHOR_COVER_&lt;n&gt; strings
 #AUTHOR_NUM Keeps track of user-defined string
 AUTHOR_&lt;n&gt; in AUTHOR
 #AUTHORS Equals final value of AUTHOR_NUM;
 used for authors in doc header
 #BASELINE_MARK In PP, the vertical position on the page
 (when paragraph spacing is on) after a
 quote or blockquote has been output and
 the post-quote space has been added.
 #BMARG Position of unvarying bottom margin
 during doc processing; required for
 collecting footnotes inside diversions
 #BIB_ALLOWS_HEADERS Put headers on bib pages? (boolean)
 #BIB_ALLOWS_HEADERS_ALL Put headers on all bib pages? (boolean)
 #BIB_FIRST_PAGE Tells PRINT_PAGE_NUMBER about bibliography
 first page number
 #BIB_FIRST_PN Starting pagenumber for bibliographies
 #BIB_HDRFTR_CENTER Put a center string in bib page headers?
 (boolean)
 #BIB_LEAD Bibliography lead, expressed in points
 #BIB_LIST Output bibs in list style? (boolean)
 #BIB_NO_COLS De-columnize bibliographies? (boolean)
 #BIB_NO_FIRST_PN Put a page number on the first page of
 bibliographies? (boolean)
 #BIB_SINGLESPACE Single-space TYPEWRITE bibliographies? (boolean)
 #BIB_SPACE Post item space for bibliography pages
 #BIB_STRING_ADVANCE Vertical position of "BIBLIOGRAPHY" string
 (relative to the top edge of the page)
 #BIB_STRING_CAPS Capitalize bib title? (boolean)
 #BIB_STRING_UNDERLINE Underscore bib title? 0=no; 1=yes; 2=double
 #BIB_STRING_UNDERLINE_WEIGHT Underline weight in units
 #BIB_STRING_UNDERLINE_WEIGHT_ADJ Underline weight/2
 #BIB_PS Base point size for bibliography pages expressed
 in points
 #BIBLIOGRAPHY Are we doing a bib page? (boolean)
 #BQ_AUTOLEAD Register created by BLOCKQUOTE_AUTOLEAD
 #BQ_LEAD Leading of blockquotes
 #BQUOTE_COLOR Colorize blockquotes? (boolean)
 #BQUOTE_LN Number blockquotes? (boolean)
 #CAP_HEIGHT_ADJUST Tallest cap height of strings LEFT, CENTER,
 and RIGHT in footers; used to place rule
 over footer
 #CAPS_WAS_ON In HDRFTR, to re-enable running text CAPS
 (boolean)
 #CENTER_CAP_HEIGHT Cap height of CENTER string in
 headers/footers
 #CH_NUM The chapter number obtained by
 PREFIX_CHAPTER_NUMBER
 #CHAPTER_CALLED Has CHAPTER been invoked? (boolean); used
 by PREFIX_CHAPTER_NUMBER to see whether
 to try to get the chapter number from
 the arg passed to CHAPTER
 #CHAPTER_TITLE_NUM Incrementing register used to define strings
 $CHAPTER_TITLE_&lt;n&gt;
 #CHAPTER_TITLE_COLOR Colorize chapter title? (boolean)
 #CLOSING Is there a closing (for letters)? (boolean)
 #CODE_COLOR Colorize CODE? (boolean)
 #CODE_SIZE_ADJ Percentage by which to scale CODE font
 #COL_L_LENGTH Line length of columns
 #COL_&lt;n&gt;_L_MARGIN Left margin of column &lt;n&gt;
 #COL_NEXT Was COL_NEXT invoked? (boolean; used in
 FOOTER)
 #COL_NUM Incrementing counter of num of columns;
 for use with #COL_&lt;n&gt;_L_MARGIN
 #COL_TOTAL #COL_L_LENGTH + #GUTTER; used to calculate
 #COL_&lt;n&gt;_L_MARGIN
 #COLLATE Are we performing a COLLATE? (boolean)
 #COLLATED_DOC If 1, instructs TOC that this is a collated
 doc
 #COLUMNS Are columns turned on? (boolean)
 #COLUMNS_WERE_ON Stores columnar state prior to outputting
 endnotes in no-columns mode
 #COPY_STYLE 1=draft, 2=final
 #COUNTERS_RESET Tells FOOTNOTE if fn counters have
 been reset because of footnotes gathered
 inside a diversion
 #COVER Print a COVER? (boolean)
 #COVER_ATTRIBUTE_COLOR Colorize cover attribution string? (boolean)
 #COVER_AUTHOR Put AUTHOR(s) on COVER? (boolean)
 #COVER_AUTHOR_COLOR Colorize cover author(s)? (boolean)
 #COVER_BLANKPAGE Output blankpage after COVER? (boolean)
 #COVER_COLOR Colorize COVER? (boolean)
 #COVER_COPYRIGHT Put copyright on COVER? (boolean)
 #COVER_COPYRIGHT_COLOR Colorize cover copyright line? (boolean)
 #COVER_DOCTYPE Put doctype on COVER? (boolean)
 #COVER_DOCTYPE_COLOR Colorize cover doctype? (boolean)
 #COVER_END Are we ending a COVER? (boolean)
 #COVER_LEAD Cover leading
 #COVER_MISC Put misc on COVER? (boolean)
 #COVER_MISC_COLOR Colorize cover misc line? (boolean)
 #COVER_RULE_WEIGHT Doctype underline weight on COVER
 #COVER_RULE_WEIGHT_ADJ COVER_RULE_WEIGHT/2
 #COVER_START_POS Vertical starting pos of cover material
 #COVER_SUBTITLE Put subtitle on COVER? (boolean)
 #COVER_TITLE Put title on COVER? (boolean)
 #COVER_TITLE_NUM Number of cover title items
 #COVER_TITLE_COLOR Colorize cover title? (boolean)
 #COVER_SUBTITLE_COLOR Colorize cover subtitle? (boolean)
 #COVER_UNDERLINE Underline doctype on COVER? (boolean)
 #COVER_UNDERLINE_WEIGHT Doctype underline weight on COVER
 #COVER_UNDERLINE_WEIGHT_ADJ COVER_UNDERLINE_WEIGHT/2
 #CURRENT_V_POS \n[.d] ; used in SHIM
 #COVERS Print covers? (boolean)
 #COVERS_COUNT Include COVER in pagination scheme? (boolean)
 #COVERS_OFF Don't print COVERs (boolean)
 #DATE_FIRST Was .DATE invoked as first letter
 header after .START? (boolean)
 dc "mark" register for document columns
 DD Vert. space before and after eqn blocks
 defer / new-defer Appended to FLOAT*DIV: if float deferred
 #DEFER_BIB_SPACING Tells DEFAULTS to do BIBLIOGRAPHY_SPACING
 if it was called before START
 #DEFER_PAGINATION Tells COLLATE to restore pagination (from
 RESTORE_PAGINATION
 #DEFER_SPACE_ADDED Was space added between two "first" footnotes that
 appear on the same page? (boolean)
 #DELAY_SHIM Instructs DO_QUOTE to delay SHIM when quote
 falls at the top of a page
 #DEPTH LIST depth
 #DEPTH_1 Doc header depth with lead adjustment
 (#DOCHEADER_LINES * #DOCHEADER_LEAD)
 #DEPTH_2 Doc header depth without lead adjustment
 (#DOCHEADER_LINES * #DOC_LEAD)
 #DEPTH_TO_B_MARGIN Page length minus #B_MARGIN
 D-float Depth of float containing/ending with
 DRH, DRV, DBX, or DCL
 DI eqn indent if EQ I
 #DIVER_FN Register that tells FOOTNOTE whether to
 "move" or "defer" a footnote collected
 inside a diversion
 #DIVERSIONS_HY_MARGIN A reasonable value for .hym applied to
 QUOTE, BLOCKQUOTE and EPIGRAPH to
 avoid excessive hyphenation if these are
 set quad left
 #DIVERTED Set to 1 in DIVERT_FN_OVERFLOW; reset
 subsequently in FOOTNOTES when called by
 PROCESS_FN_LEFTOVER to 2 or 3 for use by
 FOOTER to decide whether to in/decrease
 #FN_DEPTH when outputting footnotes
 #DOC_COVER Are we doing a DOC_COVER? (boolean)
 #DOC_COVER_AUTHOR Put AUTHOR(s) on DOC_COVER? (boolean)
 #DOCCOVER_BLANKPAGE Output blank page after DOC_COVER? (boolean)
 #DOC_COVER_CHAPTER_TITLE_COLOR Colorize CHAPTER_TITLE on DOC_COVER? (boolean)
 #DOC_COVER_COPYRIGHT Put copyright on DOC_COVER? (boolean)
 #DOC_COVER_DOCTYPE Put doctype on DOC_COVER? (boolean)
 #DOCCOVER_END Are we finishing a DOC_COVER? (boolean)
 #DOC_COVER_LEAD Doc cover leading
 #DOC_COVER_MISC Put misc on DOC_COVER? (boolean)
 #DOC_COVER_START_POS Vertical starting pos of doc cover material
 #DOC_COVER_COLOR Colorize cover? (boolean)
 #DOC_COVER_START_POS Vertical starting pos of cover material
 #DOC_COVER_TITLE_COLOR Colorize doc cover title? (boolean)
 #DOC_COVER_SUBTITLE_COLOR Colorize doc cover subtitle? (boolean)
 #DOC_COVER_ATTRIBUTE_COLOR Colorize doc cover attribution string? (boolean)
 #DOC_COVER_AUTHOR_COLOR Colorize doc cover author(s)? (boolean)
 #DOC_COVER_DOCTYPE_COLOR Colorize doc cover doctype? (boolean)
 #DOC_COVER_COPYRIGHT_COLOR Colorize doc cover copyright line? (boolean)
 #DOC_COVER_MISC_COLOR Colorize doc cover misc line? (boolean)
 #DOC_COVER_SUBTITLE Put subtitle on DOC_COVER? (boolean)
 #DOC_COVER_TITLE Put title on DOC_COVER? (boolean)
 #DOC_COVER_TITLE_NUM Number of doc cover title items
 #DOC_COVERS Print doc covers? (boolean)
 #DOC_COVERS_OFF Don't print DOC_COVERs (boolean)
 #DOCCOVER_RULE_WEIGHT Doctype underline weight on DOC_COVER
 #DOCCOVER_RULE_WEIGHT_ADJ DOCCOVER_RULE_WEIGHT/2
 #DOCCOVER_UNDERLINE Underline doctype on DOC_COVER? (boolean)
 #DOCCOVER_UNDERLINE_WEIGHT Doctype underline weight on DOC_COVER
 #DOCCOVER_UNDERLINE_WEIGHT_ADJ DOCCOVER_UNDERLINE_WEIGHT/2
 #DOCCOVERS_COUNT Include DOC_COVER in pagination scheme? (boolean)
 #DOC_HEADER Whether to print a doc header (boolean)
 #DOC_LEAD_ADJ Incrementing value (in units) added to
 #DOC_LEAD to fill page to #B_MARGIN
 #DOC_LEAD Leading used in body
 #DOC_L_LENGTH Global L_LENGTH
 #DOC_L_MARGIN Global L_MARGIN
 #DOC_LR_MARGIN_TMP In HEADER, if RECTO_VERSO=1, temporarily
 holds DOC_L_MARGIN during page margin switch
 #DOC_PT_SIZE Point size used for body text
 #DOC_R_MARGIN Global R_MARGIN
 #DOC_TYPE 1=default, 2=chapter, 3=named, 4=letter
 #DOCHEADER_ADVANCE Distance from top-of-page to baseline of
 docheader
 #DOCHEADER_COLOR Colorize docheader? (boolean)
 #DOCHEADER_DEPTH Depth of docheader
 #DOCHEADER_LEAD Lead of doc header
 (#DOC_LEAD + #DOCHEADER_LEAD_ADJ)
 #DOC_LEAD_ADJUST_OFF Don't adjust DOC_LEAD (boolean)
 #DOCS Always 1 after START
 #DOCTITLE_NUM Number of doctitle items
 #DOCTYPE_COLOR Colorize doctype? (boolean)
 #DOCTYPE_RULE_WEIGHT Doctype underline weight
 #DOCTYPE_RULE_WEIGHT_ADJ DOCTYPE_RULE_WEIGHT/2
 #DOCTYPE_UNDERLINE Underline doctype? (boolean)
 #DOCTYPE_UNDERLINE_WEIGHT Weight of doctype underline
 #DOCTYPE_UNDERLINE_WEIGHT_ADJ DOCTYPE_UNDERLINE_WEIGHT/2
 #DOING_COVER Tells PRINT_AUTHORS that it's printing
 the authors for a cover or doc cover
 #DONE_ONCE Keeps track of how many times footnotes
 have been collected inside the same diversion
 #DONT_RULE_ME Rule this (apparent) first footnote? (boolean)
 #DIVER_LN_OFF Turn linenumbering off in (block)quotes?
 (boolean)
 #DRAFT_WITH_PAGENUM Are we attaching draft/revision info to page
 number? (boolean)
 #EM_ADJUST Amount to raise \(em at END
 #EN_ALLOWS_HEADERS Put page headers on endnotes pages? (boolean)
 #EN_ALLOWS_HEADERS_ALL Put page headers on all endnotes pages?
 (boolean)
 #EN_BQ_AUTOLEAD Register created by EN_BLOCKQUOTE_AUTOLEAD
 #EN_BQ_LEAD Leading of blockquotes on endnotes pages
 #EN_FIGURE_SPACE Width of \0, for use with formatting endnotes
 #EN_FIRST_PAGE Tells PRINT_PAGE_NUMBER about endnotes
 first page number
 #EN_FIRST_PN Page number that appears on page 1 of
 endnotes pages.
 #EN_HDRFTR_CENTER Should we print centre string of
 headers/footers on endnotes pages? (boolean)
 #EN_LEAD Lead of endnotes
 #EN_LN_BRACKETS Are we using brackets for line-numbered
 endnotes (boolean)
 #EN_LN_SEP Are we using a separator for line-numbered
 endnotes (boolean)
 #EN_MARK \n[ln] when \*[EN-MARK] is called
 #EN_MARK_2 \n[ln] when ENDNOTE is called
 #EN_MARKER_STYLE 1=NUMBER; 2=LINE
 #EN_NO_COLS Do not set endnotes in columns? (boolean)
 #EN_NO_FIRST_PN Put pagenumber on 1st page of endnotes?
 (boolean)
 #EN_NUMBER Number of current endnote
 #EN_NUMBER_PLACEHOLDERS Number of placeholders to reserve for endnotes
 numbers
 #EN_NUMBERS_ALIGN_RIGHT Hang and align endnote numbers right?
 (boolean)
 #EN_NUMBERS_ALIGN_LEFT Align endnote numbers with left margin?
 (boolean)
 #EN_NUMBERS_PLACEHOLDERS Number of placeholders when endnote numbers
 hang and align right
 #EN_NUMBER_L_LENGTH Line length for endnote numbers when they're
 right aligned
 #EN_PP_INDENT First line indent of paras in multi-para
 endnotes
 #EN_PP_SPACE Space multi-paras in endnotes? (boolean)
 #EN_PS ps of endnotes
 #EN_Q_AUTOLEAD Register created by EN_QUOTE_AUTOLEAD
 #EN_Q_LEAD Leading of quotes on endnotes pages
 #EN_REF Put REFs in endnotes? (boolean)
 #EN_SINGLESPACE Single space endnotes pages? (boolean)
 #EN_STRING_ADVANCE Vertical position of "ENDNOTES" string (relative to
 the top edge of the page)
 #EN_STRING_CAPS Should ENDNOTES capitalize the endnotes
 string? (boolean)
 #EN_STRING_UNDERLINE Underscore endnotes page head? (boolean)
 #EN_STRING_UNDERLINE_WEIGHT Weight of endnotes page title underscore
 #EN_STRING_UNDERLINE_WEIGHT_ADJ EN_STRING_UNDERLINE_WEIGHT_ADJ/2
 #EN_TEXT_INDENT Page offset for text of endnotes when
 numbers right align
 #EN_TITLE_UNDERLINE Underscore endnotes document identifier?
 (boolean)
 #EN_TITLE_UNDERLINE_WEIGHT Weight of endnotes document identification
 underscore
 #EN_TITLE_UNDERLINE_WEIGHT_ADJ #EN_STRING_UNDERLINE_WEIGHT_ADJ/2
 #END_QUOTE For PP=0 indenting; did we just end a quote?
 (boolean)
 #ENDNOTE Are we in an endnote? (boolean)
 #ENDNOTE_REFS Are REFs going to endnotes? (boolean)
 #ENDNOTES Are we in an endnote (for FOOTERs; boolean)
 #EPI_ACTIVE Are we in an epigraph? (boolean)
 #EPI_AUTOLEAD Autolead value for epigraphs
 #EPI_COLOR Colorize epigraphs? (boolean)
 #EPI_DEPTH Depth of epigraph from first baseline to
 last
 #EPI_FITS Does epigraph fit on page/column? (boolean)
 #EPIGRAPH Did we have an epigraph? (boolean) 
 #EPI_LEAD_DIFF Difference between #DOC_LEAD and #EPI_LEAD
 #EPI_LEAD Leading of epigraph; set by AUTOLEAD
 #EPI_LINES_EVEN Even # of lines at end of epi crossing page in
 TYPEWRITE (d-spaced)?
 #EPI_LINES Number of lines in the epigraph
 #EPI_LINES_TO_END Number of epigraph lines remaining after
 footer trap is sprung
 #EPI_LINES_TO_TRAP Number of epigraph lines till footer trap is
 sprung
 #EPI_L_LENGTH Epigraph line length
 #EPI_OFFSET Left margin of epigraphs
 #EPI_OFFSET_VALUE Epigraph indent as a function of page offset
 #EPI_ON Are we in an epigraph? (boolean)
 #EPI_WHITESPACE Space after epigraph to compensate for
 epigraph leading
 #FIELD Incrementing register tacked onto LETTERHEAD
 #FINIS Was FINIS invoked? (boolean)
 #FINIS_STRING_CAPS Capitalize finis string? (boolean)
 #FINIS_COLOR Colorize FINIS? (boolean)
 #FIRST_DOC_TITLE_PN Page number of 1st (collated) doc (for TOC)
 #FIRST_DOC_TOC_PN_PADDING Padding for 1st page number of 1st (collated) doc
 (for TOC)
 float*after-shim / \n[nl]; tests if SHIM has stayed on the same
 float*before-shim baseline
 float-span Float can run to multiple pages? (boolean)
 float*with-tbl Float contains a tbl block
 #FN_AUTOLEAD Autolead value of footnotes
 #FN_BL_INDENT Left indent of INDENT BOTH in footnotes
 #FN_BR_INDENT Right indent of INDENT BOTH in footnotes
 #FN_COUNT Which fn marker to print; also to
 tell mom to reserve space for and print
 the rule above footnotes
 #FN_COUNT_AT_FOOTER The FN_COUNT after FOOTNOTES has been
 output in FOOTER
 #FN_COUNT_FOR_COLS Holds a separate footnote count for columns
 (so they don't reset to 0 1 until page break)
 #FN_DEFER Defer footnote to next page/column? (boolean)
 If 0, don't defer.
 #FN_DEFER_SPACE Whether to deposit space before
 footnote 1 because there's a deferred
 footnote on the page
 #FN_DEPTH Depth of footnote diversion(s)
 #FN_FOR_EPI Signals to epigraph that a footnote is being
 processed
 #FN_GAP When there are footnotes on a page, the
 difference between where FOOTER will be
 sprung and the next valid baseline.
 Used in VFP_CHECK.
 #FN_LEAD Lead in footnotes after FN_AUTOLEAD is
 applied
 #FN_L_INDENT Left indent of INDENT LEFT in footnotes
 #FN_LINES Number of lines in fn; used to calculate
 fn depth
 #FN_LN_BRACKETS Are footnote linenumber brackets being used?
 (boolean)
 #FN_LN_SEP Is a footnote linenumber separator being used?
 (boolean)
 #FN_MARK \n[ln] when \*[FN-MARK] is called
 #FN_MARK_2 \n[nl] when FOOTNOTE is called
 #FN_MARKER_STYLE 1=STAR; 2=NUMBER
 #FN_MARKERS Print footnote markers? (boolean)
 #FN_NUMBER The footnote number attached to running text
 (and fns) when numbers instead of
 star/dagger is being used for footnootes
 numbers
 #FN_OVERFLOW_DEPTH Depth of leftover from footnote processing
 #FN_OVERFLOW_TRAP_POS The register that sets the position of
 trap FN_OVERFLOW_TRAP.
 #FN_R_INDENT Right indent of INDENT RIGHT in footnotes
 #FN_REF Put REFs in footnotes? (boolean)
 #FN_RULE Print fn rule? (boolean)
 #FN_RULE_ADJ # of points to raise footnote separator from
 its baseline
 #FN_RULE_LENGTH Length of footnote separator rule
 #FN_RULE_WEIGHT Weight of the footnote separator rule
 #FN_RULE_WEIGHT_ADJ FN_RULE_WEIGHT/2
 #FN_WAS_DEFERED Tells HEADER about a deferred footnote
 #FOOTER_DIFF In TRAPS, the difference between the
 original #B_MARGIN and #VISUAL_B_MARGIN
 #FOOTER_GAP Amount of space between end of text and
 page #
 #FOOTER_MARGIN Amount of space between page # and bottom
 of page
 #FOOTER_POS Position of footer trap (required for
 collecting footnotes inside a diversion)
 #FOOTER_RULE Print footer rule? (boolean)
 #FOOTER_RULE_GAP Gap between footer and separator rule above
 #FOOTER_RULE_WEIGHT Weight of footer rule
 #FOOTER_RULE_WEIGHT_ADJ #FOOTER_RULE_WEIGHT/2
 #FOOTERS_ON Are we using footers? (boolean)
 #FOOTERS_WERE_ON Were footers on? - used in FINIS and BLANKPAGE
 (boolean)
 #FOOTNOTE_COLOR Colorize footnotes? (boolean)
 #FORCE Force float? (boolean)
 #FROM_BIB_STRING Tells UNDERSCORE it's underscoring $BIB_STRING
 #FROM_COVER Tells UNDERSCORE it's underscoring on a cover
 #FROM_DOC_COVER Tells UNDERSCORE it's underscoring on a doccover
 #FROM_DOCTYPE Tells UNDERSCORE it's underscoring the doctype
 #FROM_EN_STRING Tells UNDERSCORE it's underscoring $EN_STRING
 #FROM_EN_TITLE Tells UNDERSCORE it's underscoring $EN_TITLE
 #FROM_HEAD Tells UNDERSCORE it's underscoring a head
 #FROM_DIVERT_FN Signals to FOOTNOTE, when run from
 within DIVERT_FN_LEFTOVER, to set
 #SPACE_REMAINING to the total area
 allowable for running text
 #FROM_FOOTER In col to col footnote processing, tells
 FOOTNOTE that FOOTNOTES was output from
 FOOTER.
 #FROM_HEADER In col to col footnote processing, tells
 FOOTNOTE that FOOTNOTES was output from
 HEADER.
 #FULLSPACE_QUOTES Should we fullspace quotes? (boolean)
 #GET_DC_HEIGHT Used in routine to get the correct point size for
 dropcaps
 #GET_DEPTH Signals to FOOTNOTE that it should
 measure the depth of current footnotes
 plus the most recently added one, except
 where the footnote is to be deferred to
 the next page or column
 #GUTTER Width of gutter between columns
 #H_BASELINE_ADJ Vertical spacing adjustment for heads (default=0)
 #HDRFTR_BOTH Are we setting both headers and footers? (boolean)
 #HDRFTR_CENTER_CAPS CENTER part of header/footer in caps?
 (boolean; default=off)
 #HDRFTR_CENTER_COLOR Colorize header/footer center? (boolean)
 #HDRFTR_COLOR Colorize headers/footers? (boolean)
 #HDRFTR_CTR_PAD_LEFT Amount of hdrftr CENTER padding on the left
 #HDRFTR_CTR_PAD_RIGHT Amount of hdrftr CENTER padding on the right
 #HDRFTR_CTR_PAD_TMP Temp storage of left hdrftr CENTER padding
 (for recto/verso switch)
 #HDRFTR_HEIGHT Cap height of $HDRFTR_RECTO/$HDRFTR_VERSO
 strings
 #HDRFTR_LEFT_CAPS Left part of header/footer in caps?
 (boolean; default=off)
 #HDRFTR_LEFT_COLOR Colorize header/footer left? (boolean)
 #HDRFTR_PT_SIZE Initial point size of headers/footers
 #HDRFTR_RECTO_CAPS Header/footer recto caps? (boolean)
 #HDRFTR_RIGHT_CAPS Right part of header/footer in caps?
 (boolean; default=on)
 #HDRFTR_RIGHT_COLOR Colorize header/footer right? (boolean)
 #HDRFTR_RULE Print head/footer rule? (boolean)
 #HDRFTR_RULE_COLOR Colorize header/footer rule? (boolean)
 #HDRFTR_RULE_GAP Space between header/footer and
 header/footer rule
 #HDRFTR_RULE_WEIGHT Weight of header/footer rule
 #HDRFTR_RULE_WEIGHT_ADJ HDRFTR_RULE_WEIGHT/2
 #HDRFTR_TMP_CAPS_SWITCH Temporarily holds HDRFTR_LEFT_CAPS value if
 #SWITCH_HDRFTR=1
 #HDRFTR_VERSO_CAPS Header/footer verso caps? (boolean)
 #HEAD 1=main/section head 2=subhead
 #HEAD_CAPS Print section titles in caps? (boolean)
 #HEAD_COLOR Colorize heads? (boolean)
 #HEADER_GAP Distance from header to running text
 #HEAD_NUM Head number
 #HEAD_SPACE 2 line spaces before heads? (boolean)
 #HEAD_UNDERLINE Underline heads? (boolean)
 #HEAD_UNDERLINE_WEIGHT Head underline weight
 #HEAD_UNDERLINE_WEIGHT_ADJ HEAD_UNDERLINE_WEIGHT/2
 #HEADER_MARGIN Distance from top of page to header
 #HEADER_RULE Print header rule? (boolean)
 #HEADER_RULE_GAP Gap between header and header rule
 #HEADER_RULE_WEIGHT Header rule weight
 #HEADER_RULE_WEIGHT_ADJ HEADER_RULE_WEIGHT/2
 #HEADERS_ON Headers on? (boolean)
 #HEADER_STATE Saves header state in COLLATE for use in
 START after COLLATE
 #HEADERS_WERE_ON Were headers on? - used in BLANKPAGE (boolean)
 #HF_OFF Has HEADERS_AND_FOOTERS been turned off? (boolean)
 #HORIZ_MARK Horizontal 
 #HOW_MANY Number of blank pages to output
 #IGNORE Should we ignore this macro? Set to 1 in
 TYPEWRITE.
 #IN_BIB_LIST Tells ITEM we're doing a bibliography in
 list style
 #INDENT_FIRST_PARAS Indent first paras? (boolean)
 #INDENT_FIRSTS Tells footnotes to leave INDENT_FIRST_PARAS
 alone if it's on for running text.
 #ITALIC_MEANS_ITALIC For TYPEWRITE. (boolean)
 #ITEM Counter for removing _1, _2, _3... strings
 in TITLE, CHAPTER_TITLE, etc.
 #L_LENGTH_FOR_EPI Stores line length at top of doc for use
 with EPIGRAPH when columns are on
 #L_MARGIN_DIFF Difference between DOC_L_MARGIN and
 L_MARGIN
 #LB_CHAR_ITERATIONS Number of linebreak character iterations
 #LEFT_CAP_HEIGHT Cap height of left string in headers/footers
 #VALID_BASELINE Calculates vert. position of next valid
 baseline in SHIM
 #LETTER_STYLE 1=BUSINESS 2=PERSONAL
 #LINEBREAK Did we have a linebreak? (boolean)
 #LINEBREAK_COLOR Colorize linebreak? (boolean)
 #LINENUMBER_COLOR Colorize linenumbers? (boolean)
 #LINENUMBERS Holds various states of line-numbering when
 line numbering is enabled
 #LINES_PER_PAGE # of lines (at DOC_LEAD) that fit on
 page after #B_MARGIN is set
 #LN Test 1st arg to NUMBER_LINES for digit or string
 MN-active Are we doing a margin note? (boolean)
 MN-curr Current margin note
 MN-div-&lt;n&gt;-depth Depth of margin note &lt;n&gt;
 MN-hy Hyphenation flag of margin notes
 #MNinit Have margin notes been initialized? (boolean)
 #MNinit_DEFERRED Did we have to defer a margin note? (boolean)
 MN-last-pos Baseline of previous margin note
 MN-lead-adj Difference between the current DOC_LEAD and the
 leading used in margin notes
 MN-left Number of current left margin note
 MN-left-start Horizontal start position of left margin note
 MN-left-width Width of left margin note
 MN-right Number of current right margin note
 MN-right-start Horizontal start position of right margin note
 MN-right-width Width of right margin note
 MN-sep Gutter between margin notes and running text
 MN-shifted Did we have to shift a margin note down?
 (boolean)
 MN-size Point size of margin notes
 MN-spacing Leading of margin notes
 #MISC_&lt;n&gt; Used to print "next" misc lines in DO_COVER
 #MISC_COVER_NUM Number of cover misc items
 #MISC_DOCCOVER_NUM Number od doc cover misc items
 #MISC_NUM Number of MISC items
 #MISCS =#MISC_NUM in DO_COVER
 #MN_OVERFLOW_LEFT If 1, left margin note text overflows
 #MN_OVERFLOW_RIGHT If 1, right margin note text overflows
 #n%_AT_PAGENUM_SET Page # from n% when PAGENUMBER invoked
 #NEEDS_SPACE Instruct FOOTNOTE, when called by
 PROCESS_FN_IN_DIVER, that if the footnote
 had to be deferred, the VFP must be
 raised by 1v (set in DIVER_FN_2_PRE)
 #NEITHER Should we print no covers? (boolean)
 #NEXT_AUTHOR Supplies correct digit to AUTHOR_&lt;n&gt;
 when printing authors in doc header
 #NEXT_LN Next linenumber when \n[ln] has to be stored
 because linenumbering suspended
 #NEXT_MISC Incrementing counter for misc lines in
 DO_COVER
 #NEXT_SUBTITLE Incrementing register used to print subtitles
 #no-repeat-MN-left Don't repeat left margin note (boolean)
 #no-repeat-MN-right Don't repeat right margin note (boolean)
 #NO_BACK_UP Instructs FN_OVERFLOW_TRAP not to
 subtract 1 line of footnote lead from
 FN_OVERFLOW in a PREV_FN_DEFERRED
 situation.
 #NO_BREAK Set to 1 in COLLATE if last line of
 text before COLLATE falls at the bottom
 of the page; instructs NEWPAGE to use
 'br instead of .br
 #NO_COLUMNS Don't print document in columns (boolean)
 #NO_FN_MARKER Don't print footnote markers (boolean)
 #NO_SHIM Should SHIM shim? (boolean)
 #NO_SPACE When para spacing is active, instructs
 PP not to add space after a quote or blockquote
 #NO_TRAP_RESET Should we reset page traps? (boolean)
 #NOT_YET_ADJUSTED Line on which a footnote was called has not yet
 been adjusted by groff (boolean)
 #NUM_AUTHORS # of authors mod 2 to test if odd or even
 # of authors
 #NUM_MISCS Number of args passed to MISC
 #NUM_MISCS_COVER Number of args passed to MISC COVER
 #NUM_MISCS_DOCCOVER Number of args passed to MISC DOC_COVER
 #NUMBER_HEAD Are heads numbered? (boolean)
 #NUMBER_PH Are paraheads numbered? (boolean)
 #NUMBER_SH Are subheads numbered? (boolean)
 #NUMBER_SSH Are subsubheads numbered? (boolean)
 #NUM_COLS Number of columns per page
 #NUMBERED If set to 1, lets PARAHEAD know that
 main-, sub-, and subsubhead numbers have already been
 prefixed to the parahead string
 #NUM_FIELDS Incrementing register used to match
 #TOTAL_FIELDS
 #OK_PROCESS_LEAD Initial processing of TOC and endnote
 leading is deferred until OK_PROCESS_LEAD=1
 #ORIGINAL_B_MARGIN The value for #B_MARGIN as set by the
 macro B_MARGIN
 #ORIG_DOC_LEAD DOC_LEAD before endnotes, bibliographies, tocs
 #ORIG_L_LENGTH \\n[.l] before starting LISTs
 #ORIGINAL_DOC_LEAD The lead for PRINT_STYLE 1 as set in
 PRINTSTYLE; required so that PRINT_STYLE 1
 footnotes have an unadjusted lead of
 12 points
 #OVERFLOW Signals to FOOTNOTE that some of the
 footnote text won't fit on the page
 #OVERFLOW_LEFT Does left margin note overflow? (boolean)
 #OVERFLOW_RIGHT Does right margin note overflow? (boolean) 
 #P Page number for margin notes
 #PAD_LIST_DIGITS&lt;n&gt; Pad LIST digits for LIST &lt;n&gt;? (boolean)
 #PAGE_NUM_ADJ What to add to n% to get #PAGENUMBER
 #PAGE_NUM_H_POS 1=left 2=CENTER 3=right; default=2
 #PAGE_NUM_COLOR Colorize pagenumbers? (boolean)
 #PAGE_NUM_HYPHENS Print hyphens surrounding page numbers?
 (boolean)
 #PAGE_NUM_HYPHENS_SET Did user set (or unset) hyphens around page
 numbers? (boolean)
 #PAGE_NUM_POS_SET Did user set page number position? (boolean)
 #PAGE_NUM_SET Test if PAGE_1_NUM was used to set 1st page
 number
 #PAGE_NUM_V_POS 1=top 2=bottom; default=2
 #PAGE_NUMS Print page numbers? (boolean)
 #PAGE_POS Exact position on page during a diversion
 (required for collecting footnotes inside
 a diversion)
 #PAGE_TOP \n[nl] after HEADER completes itself
 #PAGENUM_STYLE_SET Did we set pagenumber style? (boolean)
 #PAGENUMBER The page number
 #PAGES Number of blank pages to output
 #PAGINATE Are we paginating? (boolean)
 #PAGINATE_TOC Is toc pagination on? (boolean)
 #PAGINATE_WAS_ON Keeps track of pagination state while
 outputting blank pages
 #PAGINATION_STATE Saves pagination state in COLLATE for use in
 START after a COLLATE
 #PAGINATION_WAS_ON Was pagination on? - used in FINIS (boolean)
 #PH_COLOR Colorize paraheads? (boolean)
 #PH_INDENT Size of parahead indent
 #PH_NUM Parahead number
 #PP 0 at first para; auto-increments
 #PP_AT_PAGE_BREAK # of last (incl. partial) para on page
 #PP_INDENT How much to indent paras
 #PP_SPACE Put space before paras? (boolean)
 #PP_SPACE_SUSPEND Suspend para spacing for blockquotes and
 epigraphs
 #PP_STYLE_PREV In footnotes, stores PP style in effect
 prior to invoking FOOTNOTE
 #PP_STYLE Regular para=1; quote or epi para=2
 #PRE_COLLATE Set to 1 in COLLATE; prevents FAMILY
 from clobbering a user-set DOC_FAMILY
 #PREFIX_CH_NUM Prefix the chapter number to numbered
 heads, subheads and/or paraheads? (boolean)
 #PREV_FN_DEFERRED Was previous footnote deferred? (boolean)
 #PRINT_PAGENUM_ON_PAGE_1 Should we print the page number on first
 page of doc when footers are on? (boolean)
 #PRINT_STYLE Typewrite=1, typeset=2
 #PT_SIZE_IN_UNITS Stored value of \n[.ps] from last time
 PT_SIZE was called
 #Q_AUTOLEAD Register created by QUOTE_AUTOLEAD
 #Q_DEPTH Depth of quote
 #Q_FITS Does this quote fit on one page/column?
 (boolean)
 #Q_LEAD Leading of quotes
 #Q_LEAD_DIFF Difference between leading of running text
 and the leading used in quotes/blockquotes
 #Q_LEAD_REAL Leading of quotes and blockquotes saved at the
 ends of their respective diversions
 #Q_L_LENGTH Line length of quotes
 #Q_OFFSET Page offset for quotes
 #Q_OFFSET_VALUE Factor by which to multiply PP_INDENT to
 offset quotes
 #Q_PARTIAL_DEPTH The amount of a quote/blockquote that fits at
 the bottom of a page when a quote/blockquote
 spans pages
 #Q_PP In PP, stores para # in QUOTE. Removed in
 ENDQUOTE.
 #Q_SPACE_ADJ The flexible amount of whitespace to add before
 and after a quote/blockquote
 #Q_TOP Vertical place on page that a quote starts
 #QUOTE 1=PQUOTE, 2=BQUOTE
 #QUOTE_COLOR Colorize quotes (poetic)? (boolean)
 #QUOTE_LN Linenumber quotes? (boolean)
 #RECTO_VERSO Switch HEADER_LEFT and HEADER_RIGHT on
 alternate pages? (boolean)
 ref*suppress-period Suppress period at end of ref field? (boolean)
 ref*type Kind of reference we're building
 #REF Was REF called? (boolean)
 #REF_HY Hyphenate REFs? (boolean)
 #REF_WARNING Have we issued a ref warning? (boolean)
 #REPEAT Number of times to repeat linebreak
 character
 #RERUN_TRAPS Should we invoke TRAPS? (boolean)
 #RESERVED_SPACE Just enough room to put 1 more line of
 footnotes on the page
 #RESET_EN_PP Holds value of register #EN_PP_INDENT
 #RESET_EN_PP_INDENT Holds value of register #EN_PP_INDENT
 #RESET_FN_COUNTERS 1 = "moved" footnote collected in a diversion
 2 = "deferred" fn collected in a diversion
 #RESET_FN_NUMBER Should fn# start at 1 on every page?
 (boolean)
 #RESET_L_LENGTH Stores current line length when necessary
 #RESET_PARA_SPACE Holds current value of boolean register
 #PP_SPACE
 #RESET_PP_INDENT Stores value of PP_INDENT when needed
 #RESET_QUOTE_SPACING Stores value of boolean register
 #FULLSPACE_QUOTES (used in endnotes)
 #RESTORE_ADJ_DOC_LEAD Stores value of #ADJ_DOC_LEAD whenever needed
 #RESTORE_B_MARGIN Stores #B_MARGIN whenever needed
 #RESTORE_DOC_LEAD Stores value of current doc lead (used in
 endnotes)
 #RESTORE_HY Restore hyphenation after .][? (boolean)
 #RESTORE_INDENT Store \n[.i] whenever needed
 #RESTORE_L_LENGTH Stores \n[.l] whenever needed
 #RESTORE_LN_NUM Should we restore line numbering? (boolean)
 #RESTORE_OFFSET Page offset at moment footer trap is sprung;
 not currently used
 #RESTORE_UNDERLINE Instructs CODE OFF to restore underlining of
 italics (TYPEWRITE) if underlining was
 formerly on 
 #RIGHT_CAP_HEIGHT Cap height of right string in
 headers/footers
 #RULED Tells FOOTNOTE if a rule (or space has been
 put above the first footnote on the page
 #RUNON_FN_IN_DIVER If #LN=1, if we're in a (block)quote, instructs
 FOOTNOTE to unformat diversion RUNON_FN_IN_DIVER
 #RUNON_FOOTNOTES If #LN=1, instructs FOOTNOTE to unformat
 diversion RUNON_FOOTNOTES
 #RUN_ON Are we using run-on footnotes? (boolean)
 #SAVED_DIVER_FN_COUNT In the case of a footnote inside a
 diversion that should be treated as a
 "normal" footnote, FOOTNOTE needs to
 distinguish between a "normal" deferred
 footnote (always the 1st footnote on the
 page) and one that only looks as if
 it should be deferred, when, in fact,
 it's an overflow; this register lets
 FOOTNOTE know whether the diversion
 footnote is, in fact, the first on the
 page.
 #SAVED_DOC_LEAD Stored value of #DOC_LEAD (used in DEFAULTS after
 a COLLATE)
 #SAVED_FN_COUNT #FN_COUNT+1 prior to +#FN_COUNT; used
 in FOOTNOTES while gathering fns inside
 diversions
 #SAVED_FN_COUNT_FOR_COLS #FN_COUNT_FOR_COLS+1 prior to
 +#FN_COUNT_FOR_COLS; used in FOOTNOTES
 while gathering fns inside diversions
 #SAVED_FN_DEPTH_1 Footnote depth prior to adding footnote
 diversion depth to FN_DEPTH; used when
 footnote text will overflow
 #SAVED_FN_DEPTH_2 Footnote depth after to adding footnote
 diversion depth to FN_DEPTH; used when
 footnote text will overflow
 #SAVED_FN_NUMBER Stores current FN_NUMBER whenever needed
 #SAVED_FOOTER_POS Position of FOOTER in DO_QUOTE (hack)
 #SAVED_LEAD In FOOTER and DO_FOOTER, stores the
 lead in effect prior to outputting
 FOOTNOTES or performing either
 PROCESS_FN_LEFTOVER or
 PROCESS_FN_IN_DIVERSION; both the
 diversion FOOTNOTES and the two macros
 have, for PRINT_STYLE 2, an AUTOLEAD
 call, which requires that an LS be
 performed with the #SAVED_LEAD in
 order to remove register #AUTO_LEAD or
 #AUTO_LEAD_FACTOR.
 #SAVED_UNDERSCORE_WEIGHT Stores underscore weight whenever needed
 #SAVED_UNDERSCORE_WEIGHT_ADJ SAVED_UNDERSCORE_WEIGHT/2
 #SAVED_VFP Store variable footer position whenever needed
 #SAVED_WEIGHT Stores weight given to RULE_WEIGHT whenever needed
 #SAVED_WEIGHT_ADJ SAVED_UNDERSCORE_WEIGHT/2
 #SEP_TYPE Set to 1 if LIST separator is ( or [ or {
 #SH_COLOR Colorize subheads? (boolean)
 #SH_BASELINE_ADJ #DOC_LEAD/8 (TYPESET) or /5 (TYPEWRITE)
 (used for subhead vertical spacing)
 #SH_NUM Subhead number
 #SHIM Amount of lead required to advance to
 next valid baseline
 #SILENT_BQUOTE_LN "Silently" linenumber blockquotes? (boolean)
 #SILENT_QUOTE_LN "Silently" linenumber quotes? (boolean)
 #SINGLE_SPACE Is TYPEWRITE in single space mode? (boolean)
 #SKIP ENTRY If one, don't print the first entry (the
 document title) in the TOC of uncollated docs.
 #SKIP_FOOTER If 1, instructs DO_FOOTER to do nothing
 if B_MARGIN falls below FOOTER_MARGIN
 #SLANT_MEANS_SLANT For TYPEWRITE. (boolean)
 #SLANT_WAS_ON Keeps track of SLANT when it needs to go off
 for a while
 #SPACE_REMAINING Space remaining to footer trap; used to
 decide whether or not to defer a footnote
 #SPACE_TO_FOOTER Distance to FOOTER trap; used to calculate
 available space when FOOTNOTE is called inside
 a diversion
 #SR_ADJ_FACTOR An adjustment factor that compensates
 for the fact that #SPACE_REMAINING
 sometimes reports a fractionally larger
 space than is actually available for
 footnote text.
 #SSH_BASELINE_ADJ #DOC_LEAD/8 (TYPESET) or /5 (TYPEWRITE)
 (used for subsubhead vertical spacing)
 #START If 1, signals completion of START
 #START_FOR_FOOTERS Toggle set in START; signals to
 PRINT_HDRFTR that START has been invoked,
 allowing PRINT_HDRFTR to decide whether or
 not to print a footer on page 1
 #START_FOR_MNinit If 1, defer processing MN_INIT until #START
 #STORED_PP_INDENT Temporarily holds value of #PP_INDENT
 #SUBHEAD Was subhead the last macro invoked? (boolean)
 Controls vert. space between SUBHEAD and
 SUBSUBHEAD
 #SUBTITLE_COLOR Colorize subtitle? (boolean)
 #SUBTITLE_COVER_NUM Incrementing register used to define strings
 $SUBTITLE_COVER_&lt;n&gt;
 #SUBTITLE_DOCCOVER_NUM Incrementing register used to define strings
 $SUBTITLE_DOCCOVER_&lt;n&gt;
 #SUBTITLE_NUM Incrementing register used to define strings
 $SUBTITLE_&lt;n&gt;
 #SUBTITLES Holds number of subtitle items
 #SUITE Current page number (for letters)
 #SUP_PT_SIZE Point size of superscript
 #SUSPEND_PAGINATION Suspend pagination prior to endnotes?
 #SWITCH_HDRFTR Switch HDRFTR_LEFT and HDRFTR_RIGHT?
 (boolean)
 tbl*boxed tbl has box or allbox (boolean)
 tbl*center-label-on-table Is tbl caption centered? (boolean)
 tbl*have-header tbl has a running header (boolean)
 tbl*header-ht Depth of tbl*header-div
 tbl*left-label-on-table Is tbl caption quad left? (boolean)
 tbl*move-fn-overflow-trap Whether to move FN_OVERFLOW_TRAP_POS
 to accommodate tbl
 tbl*move-fn-overflow Amount by which to change
 FN_OVERFLOW_TRAP_POS to accommodate tbl
 tbl*move-footer Amount by which to change FOOTER trap
 to accommodate tbl
 tbl*move-footer-trap Whether to move FOOTER trap to accommodate
 tbl
 tbl*no-shim Whether to SHIM tbl (boolean)
 tbl*right-label-on-table Is tbl caption quad right? (boolean)
 #T_MARGIN_LEAD_ADJ \n[.v]-12000; ensures critically accurate
 placement of first lines on pages when
 doc processing is not being used and
 a T_MARGIN has been set
 #TAB_OFFSET# "#" at the end is from $CURRENT_TAB
 #TERMINATE Has TERMINATE been called? (boolean)
 #TITLE_COLOR Colorize title? (boolean)
 #TITLE_NUM Number of title items
 #TOC_AUTHORS Whether to append author(s) to toc doc
 title entries (boolean)
 #TOC_ENTRY_PN Current page number when a toc entry is
 collected
 #TOC_FIRST_PAGE If 1, tells PRINT_PAGE_NUMBER that this
 is the first page of the toc
 #TOC_LEAD Leading of toc pages
 #TOC_PN_PADDING Max. # of placeholders for toc entries
 page numbers
 #TOC_PS Point size of toc pages
 #TOC_RV_SWITCH Switch L/R margins of toc pages
 #TOC_HEAD_INDENT Indent of toc head entries
 #TOC_HEAD_SIZE_CHANGE ps in/decrease of toc head entries
 #TOC_PH_INDENT Indent of toc parahead entries
 #TOC_PH_SIZE_CHANGE ps in/decrease of toc parahead entries
 #TOC_SH_INDENT Indent of toc subhead entries
 #TOC_SH_SIZE_CHANGE ps in/decrease of toc subhead entries
 #TOC_TITLE_INDENT Indent of toc doc title entries
 #TOC_TITLE_SIZE_CHANGE ps in/decrease of toc doc title entries
 @TOP Controls .ns at page top;
 trap-invoked (FOOTER); mostly trap-removed
 (RR_@TOP)
 #TOTAL_FIELDS Total number of letter header fields
 #TRAP \n[.t]-1 (used in DO_QUOTE)
 #TW Width of tbl block
 #UNADJUSTED_DOC_LEAD Argument passed to DOC_LEAD prior to
 adjusting (set in TRAPS)
 #UNDERLINE_ITALIC For TYPEWRITE. (boolean)
 #UNDERLINE_ON Was UNDERLINE called? (boolean)
 #UNDERLINE_QUOTES Was UNDERLINE_QUOTES called? (boolean)
 #UNDERLINE_QUOTE Underline pquotes? (boolean)
 #UNDERLINE_SLANT For TYPEWRITE. (boolean)
 #UNDERLINE_WAS_ON Was underlining on prior to the
 invocation of current macro? (boolean)
 #UNDERLINE_WAS_ON_FN As above, but for footnotes only
 #USER_DEF_HDRFTR_CENTER Has user defined hdrftr center? (boolean)
 #USER_DEF_HDRFTR_LEFT Has user defined hdrftr left? (boolean)
 #USER_DEF_HDRFTR_RIGHT Has user defined hdrftr right? (boolean)
 #USER_DEF_HEADER_CENTER User defined CENTER title? (boolean);
 used in COPYSTYLE
 #USER_DEF_HEADER_LEFT User defined CENTER title? (boolean);
 used in COPYSTYLE
 #USER_DEF_HEADER_RIGHT User defined CENTER title? (boolean)
 used in COPYSTYLE
 #USERDEF_HDRFTR User defined single string recto/verso
 header/footer? (boolean)
 #USERDEF_HDRFTR_RECTO_QUAD 1=left, 2=CENTER, 3=right
 #USERDEF_HDRFTR_VERSO_QUAD 1=left, 2=CENTER, 3=right
 #VARIABLE_FOOTER_POS Wandering trap position for processing
 footnotes and footers; pos depends on number of
 footnotes
 #VISUAL_B_MARGIN Set in TRAPS, what \n[nl] would report
 on the last line of running text before
 FOOTER is sprung.
 #VFP_DIFF #FN_DEPTH minus #SAVED_FN_DEPTH; the
 number of footnote lines that will fit
 on the page when there will be over, and
 therefore the amount by which to raise
 the VFP for footnotes with overflow after
 the 1st footnote.
 y Vertical position stored with mk in hdrftrs.
 
+++STRINGS+++

$1ST_LETTER                      First letter of first arg to LIST
  $ADJUST_BIB_LEAD                 2nd arg to BIBLIOGRAPHY_LEAD; if not blank
                                     adjust bib leading
  $ADJUST_EN_LEAD                  2nd arg to ENDNOTE_LEAD; if not blank adjust
                                     endnote leading
  $ADJUST_TOC_LEAD                 2nd arg to TOC_LEAD; if not blank adjust
                                     toc leading
  $ATTRIBUTE_COLOR                 Attribution string color
  $ATTRIBUTE_STRING                Attribution string in doc header
  $ATTRIBUTE_STRING_COVER          Attribution string on cover
  $ATTRIBUTE_STRING_DOCCOVER       Attribution string on doc cover
  $AUTHOR_&lt;n&gt;                      Document author(s)
  $AUTHOR                          The author, or the first argument
                                     passed to .AUTHOR ($AUTHOR_1)
  $AUTHOR_COLOR                    Author color
  $AUTHOR_COVER_&lt;n&gt;                Author(s) on cover
  $AUTHOR_DOCCOVER_&lt;n&gt;             Author(s) on doc cover
  $AUTHOR_FAM                      Family to use for author in doc header
  $AUTHOR_FT                       Font to use for author in doc header
  $AUTHOR_SIZE_CHANGE              ps in/decrease of author in doc header
  $AUTHOR_PT_SIZE                  Absolute ps of authors
  $AUTHORS                         Comma-separated concatenated
                                     string of all args passed to .AUTHOR
  $BIB_FAM                         Bibliography page family
  $BIB_FT                          Bibliography page font
  $BIB_LEAD                        Base leading for bibliographies
  $BIB_LIST_SEPARATOR              Separator between enumerator and text
                                     when outputting bibliographies in
                                     LIST style
  $BIB_LIST_PREFIX                 Prefix before enumerator when outputting
                                     bibliographies in LIST style
  $BIB_PN_STYLE                    Format of bibliography page numbers
  $BIB_QUAD
  $BIB_SPACE                       Post entry space for bibliographies
  $BIB_STRING                      Bibliography title string
  $BIB_STRING_FAM                  Bib title family
  $BIB_STRING_FT                   Bib title font
  $BIB_STRING_QUAD                 Bib title quad
  $BIB_STRING_RULE_GAP             Distance between the underscores when
                                     BIB_STRING (bib first-page header) is
                                     double-underlined
  $BIB_STRING_SIZE_CHANGE          Bib title size (+ or -)
  $BIB_STRING_UNDERLINE_GAP        Distance between BIB_STRING text and (first)
                                     underline rule
  $BQ_LN_GUTTER                    Gutter between line numbers and bquotes in
                                     bquotes
  $BQUOTE_COLOR                    Blockquote color
  $BQUOTE_FAM                      Family to use for blockquotes
  $BQUOTE_FT                       Font to use for blockquotes
  $BQUOTE_QUAD                     Quad value for blockquotes
  $BQUOTE_SIZE_CHANGE              ps in/decrease of blockquotes
  $BX_COLOR                        Box color
  $BX_DEPTH                        Box depth
  $BX_INDENT                       Box left margin starting position
  $BX_WEIGHT                       Box rule weight
  $BX_WIDTH                        Box width
  $CENTER_TITLE                    What to put in the middle of header
                                     title
  $CH_NUM                          Chapter number (as a string)
  $CHAPTER                         The chapter number
  $CHAPTER_STRING                  What to print whenever the word
                                     "chapter" is required
  $CHAPTER_TITLE                   Concatenated args passed to CHAPTER_TITLE
  $CHAPTER_TITLE_&lt;n&gt;               Chapter title items
  $CHAPTER_TITLE_FAM               Family of chapter title
  $CHAPTER_TITLE_FT                Font of chapter title
  $CHAPTER_TITLE_SIZE_CHANGE       ps in/decrease of chapter title
  $CHAPTER_TITLE_PT_SIZE           Absolute ps of chapter title
  $CHAPTER_TITLE_COLOR             Color of chapter title
  $CL_COLOR                        Circle (ellipse) color
  $CL_DEPTH                        Circle (ellipse) depth
  $CL_INDENT                       Circle (ellipse) left margin starting
                                     position
  $CL_WEIGHT                       Circle (ellipse) rule weight
  $CL_WIDTH                        Circle (ellipse) width
  $CLOSE_INDENT                    Argument passed to CLOSING_INDENT
  $CODE_FAM                        Family to use with CODE
  $CODE_FT                         Font to use with CODE
  $CODE_COLOR                      Color of CODE
  $COLOR_SCHEME                    Color scheme arg passed to NEWCOLOR
  $COPY_STYLE                      DRAFT or FINAL
  $COPYRIGHT                       Copyright info
  $COPYRIGHT_COVER                 Copyright info for cover
  $COPYRIGHT_DOCCOVER              Copyright info for doc cover
  $COPYRIGHT_FAM                   Copyright line family
  $COPYRIGHT_FT                    Copyright line font
  $COPYRIGHT_PT_SIZE               Base string to which $COPYRIGHT_SIZE_CHANGE
                                     is appended
  $COPYRIGHT_SIZE_CHANGE           Copyright line size
  $COPYRIGHT_COLOR                 Copyright line color
  $COPYRIGHT_QUAD                  Copyright line quad direction
  $COVER_ATTRIBUTE_COLOR           Cover attribution string color
  $COVER_AUTHOR_COLOR              Cover author(s) color
  $COVER_AUTHOR_FAM                Cover author(s) family
  $COVER_AUTHOR_FT                 Cover author(s) font
  $COVER_AUTHOR_PT_SIZE            Author point size on cover
  $COVER_AUTHOR_SIZE_CHANGE        Cover author(s) size
  $COVER_CHAPTER_TITLE_COLOR       Color of chapter title on cover
  $COVER_CHAPTER_TITLE_PT_SIZE     Size of chapter title on cover
  $COVER_COLOR                     Overall cover color
  $COVER_COPYRIGHT_PT_SIZE         Size of copyright info on cover
  $COVER_DOCTYPE_PT_SIZE           Size of doctype on cover
  $COVER_FAM                       Overall cover family
  $COVER_LEAD_ADJ                  String appended to DOC_LEAD to arrive at
                                     base leading of covers
  $COVER_SUBTITLE_PT_SIZE          Size of subtitle on cover
  $COVER_TITLE_PT_SIZE             Size of title on cover
  $COVER_TITLE                     User-defined cover title string
  $COVER_TITLE_&lt;n&gt;                 Cover title items
  $COVER_TITLE_FAM                 Cover title family
  $COVER_TITLE_FT                  Cover title font
  $COVER_TITLE_SIZE_CHANGE         Cover title size
  $COVER_TITLE_COLOR               Cover title color
  $COVER_UNDERLINE_GAP             Distance between baseline of the doctype
                                     on covers and the underline
  $COVER_SUBTITLE_FAM              Cover subtitle family
  $COVER_SUBTITLE_FT               Cover subtitle font
  $COVER_SUBTITLE_SIZE_CHANGE      Cover subtitle size
  $COVER_SUBTITLE_COLOR            Cover subtitle color
  $COVER_DOCTYPE_FAM               Cover doctype family
  $COVER_DOCTYPE_FT                Cover doctype font
  $COVER_DOCTYPE_SIZE_CHANGE       Cover doctype size
  $COVER_DOCTYPE_COLOR             Cover doctype color
  $COVER_COPYRIGHT_FAM             Cover copyright family
  $COVER_COPYRIGHT_FT              Cover copyright font
  $COVER_COPYRIGHT_SIZE_CHANGE     Cover copyright size
  $COVER_COPYRIGHT_COLOR           Cover copyright color
  $COVER_MISC_FAM                  Cover misc family
  $COVER_MISC_FT                   Cover misc font
  $COVER_MISC_SIZE_CHANGE          Cover misc size
  $COVER_MISC_COLOR                Cover misc color
  $CURRENT_EV                      \n[.ev] at REF_BRACKETS_START
  $DC_COLOR                        Dropcap color
  $DOC_COVER_ATTRIBUTE_COLOR       Doc cover attribution string color
  $DOC_COVER_AUTHOR_COLOR          Doc cover author(s) color
  $DOC_COVER_AUTHOR_FAM            Doc cover author(s) family
  $DOC_COVER_AUTHOR_FT             Doc cover author(s) font
  $DOC_COVER_AUTHOR_PT_SIZE        Size of author on doc cover
  $DOC_COVER_AUTHOR_SIZE_CHANGE    Doc cover author(s) size
  $DOC_COVER_CHAPTER_TITLE_COLOR   Color of chapter title on doc cover
  $DOC_COVER_CHAPTER_TITLE_PT_SIZE Size of chapter title on doc cover
  $DOC_COVER_COLOR                 Overall doc cover color
  $DOC_COVER_COPYRIGHT_COLOR       Doc cover copyright color
  $DOC_COVER_COPYRIGHT_FAM         Doc cover copyright family
  $DOC_COVER_COPYRIGHT_FT          Doc cover copyright font
  $DOC_COVER_COPYRIGHT_PT_SIZE     Size of copyright info on doc cover
  $DOC_COVER_COPYRIGHT_SIZE_CHANGE Doc cover copyright size
  $DOC_COVER_DOCTYPE_COLOR         Doc cover doctype color
  $DOC_COVER_DOCTYPE_FAM           Doc cover doctype family
  $DOC_COVER_DOCTYPE_FT            Doc cover doctype font
  $DOC_COVER_DOCTYPE_PT_SIZE       Size of doctype on doc cover
  $DOC_COVER_DOCTYPE_SIZE_CHANGE   Doc cover doctype size
  $DOC_COVER_MISC_COLOR            Doc cover misc color
  $DOC_COVER_MISC_FAM              Doc cover misc family
  $DOC_COVER_MISC_FT               Doc cover misc font
  $DOC_COVER_MISC_SIZE_CHANGE      Doc cover misc size
  $DOC_COVER_FAM                   Overall doc cover family
  $DOC_COVER_LEAD_ADJ              String appended to DOC_LEAD to arrive at base
                                     leading of doc covers
  $DOC_COVER_SUBTITLE_FAM          Doc cover subtitle family
  $DOC_COVER_SUBTITLE_FT           Doc cover subtitle font
  $DOC_COVER_SUBTITLE_PT_SIZE      Size of subtitle on doc cover
  $DOC_COVER_SUBTITLE_SIZE_CHANGE  Doc cover subtitle size
  $DOC_COVER_SUBTITLE_COLOR        Doc cover subtitle color
  $DOC_COVER_TITLE                 User-defined doc cover title string
  $DOC_COVER_TITLE_&lt;n&gt;             Doc cover title items
  $DOC_COVER_TITLE_COLOR           Doc cover title color
  $DOC_COVER_TITLE_FAM             Doc cover title family
  $DOC_COVER_TITLE_FT              Doc cover title font
  $DOC_COVER_TITLE_PT_SIZE         Size of title on doc cover
  $DOC_COVER_TITLE_SIZE_CHANGE     Doc cover title size
  $DOC_FAM                         Predominant font family used in the
                                     document
  $DOC_QUAD                        Quad used for body text (justified or
                                     left) 
  $DOC_TITLE                       Concatenated args passed to DOCTITLE
  $DOC_TITLE_&lt;n&gt;                   DOCTITLE items
  $DOC_TYPE                        Document type (default, chapter, named,
                                     letter)
  $DOCCOVER_UNDERLINE_GAP          Distance between baseline of doctype and the
                                     underline on covers
  $DOCHEADER_COLOR                 Color of docheader
  $DOCHEADER_FAM                   Family used for all parts of the docheader
  $DOCHEADER_QUAD                  Quad direction (LRC) of docheader
  $DOCHEADER_LEAD_ADJ              +|- value applied to #DOC_LEAD to
                                     in/decrease leading of doc header
  $DOCTYPE_COLOR                   Color of DOCTYPE string in doc header
  $DOCTYPE_FAM                     Family to use for DOCTYPE string in
                                     doc header
  $DOCTYPE_FT                      Font to use for DOCTYPE string in
                                     doc header
  $DOCTYPE_SIZE_CHANGE             ps in/decrease of DOCTYPE string in
                                     doc header
  $DOCTYPE_PT_SIZE                 Absolute ps of DOCTYPE
  $DOCTYPE_UNDERLINE_GAP           Distance between baseline of DOCTYPE and the
                                     underline in doc header
  $DRAFT                           The draft number (string valued)
  $DRAFT_STRING                    What to print whenever the word "draft"
                                     is required
  EN_MARK                          Inline, gets #EN_MARK (\(ln)
  $EN_CLOSE_BRACKET                Close bracket for line-number enumerated
                                     endnotes
  $EN_FAMILY                       Family for endnotes
  $EN_FT                           Font for endnotes
  $EN_LEAD                         Leading of endnotes pages
  $EN_LINENUMBER                   String to print for line-number enumerators
                                     in line-numbered endnotes
  $EN_LN_FAM                       Family for line-numbers in line-number
                                     identified endnotes
  $EN_LN_FT                        Font for line-numbers in line-number
                                     identified endnotes
  $EN_LN_GAP                       Gap to leave in initial endnote lines
                                     between line-number identifies and text
  $EN_LN_SEP                       User-defined separator to use between line
                                     number(s) and endnotes when endnotes are
                                     identified by line number
  $EN_LN_SIZE_CHANGE               Size change (+ or -) for line-numbers in
                                     line-number identified endnotes
  $EN_OPEN_BRACKET                 Open bracket for line-number enumerated
                                     endnotes
  $EN_PN_STYLE                     Pagenumbering style for endnotes pages
  $EN_QUAD                         Quad for endnotes
  $EN_STRING                       Endnotes page head
  $EN_STRING_FAM                   Endnotes page head family
  $EN_STRING_FT                    Endnotes page head font
  $EN_STRING_QUAD                  Endnotes page head quad direction
  $EN_STRING_RULE_GAP              Distance between rules when EN_STRING is
                                     double-underlined
  $EN_STRING_UNDERLINE_GAP         Distance between baseline of EN_STRING and
                                     underline rule
  $EN_STRING_SIZE_CHANGE           Endnotes page head size
  $EN_TITLE                        Endnote document identifier
  $EN_TITLE_FAM                    Endnote document identifier family
  $EN_TITLE_FT                     Endnote document identifier font
  $EN_TITLE_QUAD                   Endnote document identifier quad
                                     direction
  $EN_TITLE_SIZE_CHANGE            Endnote document identifier size
  $EN_TITLE_UNDERLINE_GAP          Distance between baseline of EN_TITLE and
                                     underline rule
  $EN_NUMBER_FAM                   Endnote numbering family
  $EN_NUMBER_FT                    Endnote numbering font
  $EN_NUMBER_SIZE_CHANGE           Endnote numbering size
  $EPI_AUTOLEAD                    Autolead value (decimals ok) of
                                     epigraphs
  $EPI_COLOR                       Color of epigraphs
  $EPI_FAM                         Family to use in epigraphs
  $EPI_FT                          Font to use in epigraphs
  $EPI_OFFSET_VALUE                Arg passed to EPIGRAPH_INDENT if the
                                     arg has a unit of measure appended to it
  $EPI_QUAD                        Quad in block-style epigraphs
                                     (justified or left)
  $EPI_SIZE_CHANGE                 ps in/decrease of epigraphs
  $EVAL_BIB_SPACE                  Temporary string to find out if the
                                     arg to BIBLIOGRAPHY_SPACING ended in "v"
  $EVAL_EI_ARG                     Temporary string to find out whether
                                     the arg to EPIGRAPH_INDENT ended with
                                     a unit of measure
  $EVAL_QI_ARG                     Temporary string to find out whether
                                     the arg to QUOTE_INDENT ended with
                                     a unit of measure
  eval*[B                          Used to get substring of \*([B
  eval*[S                          Used to get substring of \*([S
  eval*[s                          Used to get substring of \*([s
  $FINIS_COLOR                     Color of FINIS string
  $FINIS_STRING                    What to print when FINIS macro is
                                     invoked
  float-adj:bottom                 A + or - sign
  float-adj:top                    A + or - sign
  float*type                       Used with tbl; 'boxed' or 'table'
  FN_MARK                          Inline, gets #FN_MARK ( \n[ln] )
  $FN_CLOSE_BRACKET                Close bracket for line-number identified
                                     footnotes
  $FN_FAM                          Family used in footnotes
  $FN_FT                           Font used in footnotes
  $FN_LINENUMBER                   String to print before footnotes when
                                     line-numbering enabled for footnotes
  $FN_LN_SEP                       Separator after line-number identified
                                     footnotes
  $FN_OPEN_BRACKET                 Open bracket for line-number identified
                                     footnotes
  $FN_QUAD                         Quad used in footnotes
  $FN_SIZE_CHANGE                  ps in/decrease of footnotes
  $FN_SPACE                        Post footnote space
  $FOOTNOTE_COLOR                  Footnote color
  $FTR_RECTO_QUAD                  Quad direction of footer recto
  $FTR_RECTO_STRING                String for footer recto
  $FTR_VERSO_QUAD                  Quad direction of footer verso
  $FTR_VERSO_STRING                String for footer verso
  $HDR_RECTO_QUAD                  Quad of header recto
  $HDR_RECTO_STRING                String for header recto
  $HDR_VERSO_QUAD                  Quad of header verso
  $HDR_VERSO_STRING                String for header verso

**Note: "header", in the descriptions below, means either headers or footers
 $HDRFTR_CENTER What to put in CENTER part of headers;
 default doctype
 $HDRFTR_CENTER_COLOR Color of CENTER part of headers
 $HDRFTR_CENTER_FAM Family of CENTER part of headers
 $HDRFTR_CENTER_FT Font of centre part of headers
 $HDRFTR_CENTER_NEW HDRFTR_CENTER after the start of TOC;
 defined in HDRFTR_CENTER if
 HDRFTR_CENTER is called as
 FOOTER_CENTER
 $HDRFTR_CENTER_OLD HDRFTR_CENTER just prior to start of
 TOC; defined in HDRFTR_CENTER if
 HDRFTR_CENTER is called as
 FOOTER_CENTER
 $HDRFTR_CENTER_SIZE_CHANGE ps in/decrease of centre title in
 headers
 $HDRFTR_COLOR Color of headers/footers
 $HDRFTR_FAM Family to use in headers
 $HDRFTR_LEFT_COLOR Color of LEFT part of headers
 $HDRFTR_LEFT_FAM Family of left part of headers
 $HDRFTR_LEFT_FT Font of left part of headers
 $HDRFTR_LEFT_SIZE_CHANGE ps in/decrease of author in headers
 $HDRFTR_LEFT What to put in left part of headers;
 default author
 $HDRFTR_RIGHT_COLOR Color of RIGHT part of headers
 $HDRFTR_RIGHT_FAM Family of right part of headers
 $HDRFTR_RIGHT_FT Font of right part of headers
 $HDRFTR_RIGHT_SIZE_CHANGE ps in/decrease of right part of
 headers
 $HDRFTR_RIGHT What to put in right part of headers;
 default title
 $HDRFTR_RULE_COLOR Color of header rule
 $HDRFTR_SIZE_CHANGE ps in/decrease of headers
 $HDRFTR_TMP_SIZE_CHANGE_SWITCH Temporarily holds
 HDRFTR_LEFT_SIZE_CHANGE if
 #SWITCH_HDRFTRS=1
 $HDRFTR_TMP_SWITCH Temporarily holds HDRFTR_LEFT if
 #SWITCH_HDRFTRS=1
 $HDRFTR_TMP_COLOR_SWITCH Temporarily holds HDRFTR_LEFT_COLOR if
 #SWITCH_HDRFTRS=1
 $HEAD_COLOR Head color
 $HEAD_FAM Family to use for section titles
 $HEAD_FT Font to use for section titles
 $HEAD_QUAD Quad value of section titles
 $HEAD_SIZE_CHANGE ps in/decrease of section titles
 $HEAD_UNDERLINE_GAP Distance between a head and the underline
 $HYPHEN Vertically adjusted hyphen used around page
 numbers
 $LHS Holds digits on the left side of the decimal
 in weight arg passed to RULE_WEIGHT
 $LINEBREAK_CHAR Character that marks line breaks
 $LINEBREAK_CHAR_V_ADJ +|- amount by which to raise/lower
 linebreak character
 $LAST_CHAR Temporary string used to discover whether
 user has remembered to put a digit after
 ROMAN or roman in arg to LIST
 $LINEBREAK_COLOR Linebreak color
 $LIST_ARG_1 The first arg to LIST (minus digits if
 ROMAN or roman
 $LN_COLOR Linenumber color
 $LN_FAMILY Linenumber family
 $LN_FONT Linenumber font
 $LN_GUTTER Gutter to leave between line numbers
 and text
 $LN_INC 2nd arg to NUMBER_LINES as a string
 $LN_NUM 1st arg to NUMBER_LINES as a string
 $LN_SIZE_CHANGE ps in/decrease of linenumbers
 $MISC_&lt;n&gt; Position of args pass to MISC
 $MISC_COLOR Misc color
 $MISC_COVER_&lt;n&gt; Misc items for cover
 $MISC_DOCCOVER_&lt;n&gt; Misc items for doc cover
 $MISC_QUAD Misc quad direction
 $MN-arg&lt;n&gt; Sequentially numbered args passed to MNinit
 MN-color Color of margin note
 MN-curr Number of current margin note
 MN-dir Left or right margin note
 MN-font Font of margin note
 MN-left-ad Fill mode of margin note
 PAGE# For use in hdrftr strings where page #
 is needed; \*[PAGE]
 $PAGENUM_COLOR Page number color
 $PAGENUM_STYLE String passed to PAGENUM_STYLE
 $PAGE_NUM_FAM Family of page numbers
 $PAGE_NUM_FT Font of page numbers
 $PAGE_NUM_SIZE_CHANGE ps in/decrease of page numbers
 $PAPER Paper size (LETTER, A4, LEGAL);
 default=LETTER
 $PH_COLOR Parahead color
 $PH_FAM Parahead family
 $PH_FT Parahead font
 $PH_SIZE_CHANGE ps in/decrease of paraheads
 $PH_SPACE Amount of horizontal space between a parahead
 and the start of paragraph text
 $PP_FT Font used in paragraphs
 $RESTORE_PAGENUM_STYLE Hold previous page numbering style
 $ROMAN_WIDTH&lt;n&gt; The digit(s) appended by user to ROMAN or
 roman when LIST is invoked
 $Q_LN_GUTTER Gutter between linenumbers and quotes
 in quotes
 $Q_OFFSET_VALUE Arg passed to QUOTE_INDENT if the
 arg has a unit of measure appended to it
 $QUOTE_COLOR Quote (poetic) color
 $QUOTE_FAM Family to use for pquotes
 $QUOTE_FT Font to use for pquotes
 $QUOTE_SIZE_CHANGE ps in/decrease of pquotes
 ref*post-punct Final punctuation mark of references
 ref*spec!&lt;n&gt; Holds fields required by differing reference
 types
 ref*string The data passed to a reference
 $REF_BIB_INDENT 2nd line indent value for references in
 bibliographies
 $REF_EN_INDENT 2nd line indent value for references in
 endnotes
 $REF_FN_INDENT 2nd line indent value for references in
 footnotes
 $REF_STYLE MLA bibliography-style or footnote/endnote
 style; used in ref*add-&lt;x&gt;
 $RESTORE_SS_VAR Saves \*[$SS_VAR] for use with ref*build
 #REVISION The revision number (string valued)
 $REVISION_STRING What to print whenever the word
 "revision" is required
 $RHS Holds digits on the right side of the decimal
 in weight arg passed to RULE_WEIGHT
 $RL_COLOR Rule color (DRH/DRV)
 $RL_DEPTH Rule depth (DRH/DRV)
 $RL_INDENT Left start position of rule (DRH/DRV)
 $RL_LENGTH Rule length (DRH/DRV)
 $RL_WEIGHT Rule weight (DRH/DRV)
 $SAVED_COPYRIGHT Temporarily holds string in $COPYRIGHT
 $SAVED_RULE_GAP Temporarily holds string in $RULE_GAP
 $SAVED_DOC_FAM Document family in effect before COLLATE
 $SAVED_PP_FT $PP_FT in effect at start of
 .COLLATE; tested for and removed
 in .PP
 $SH_FAM Family to use in subheads
 $SH_FT Font to use in subheads
 $SH_SIZE_CHANGE ps in/decrease of subheads
 $SH_COLOR Subhead color
 $SIG_SPACE Arg passed to macro, SIGNATURE_SPACE
 $SUBTITLE Concatenated args passed to SUBTITLE
 $SUBTITLE_&lt;n&gt; Subtitle items for doc header
 $SUBTITLE_COLOR Color of subtitle
 $SUBTITLE_COVER_&lt;n&gt; Subtitle items for cover
 $SUBTITLE_DOCCOVER_&lt;n&gt; Subtitle items for doc cover
 $SUBTITLE_FAM Family to use for subtitle in doc
 header
 $SUBTITLE_FT Font to use for subtitle in doc header
 $SUBTITLE_SIZE_CHANGE ps in/decrease of subtitle
 $SUBTITLE_PT_SIZE Absolute ps of subtitle
 $SUITE The #SUITE number register
 tbl*center 'C' if set
 tbl*label Text of tbl caption
 tbl*needs # of rows of tbl data required to print
 tbl near bottom of page
 tbl*user-add-space User-added space before a tbl caption
 $TITLE Concatenated args pass to TITLE
 $TITLE_&lt;n&gt; Title items
 $TITLE_COLOR Color of title
 $TITLE_FAM Family to use for title in doc header
 $TITLE_FT Font to use for title in doc header
 $TITLE_PT_SIZE Absolute point size of title in docheader
 $TITLE_SIZE_CHANGE ps in/decrease of title in doc header
 $TOC_AUTHORS What to print after toc doc title entry
 if #TOC_AUTHORS=1
 $TOC_FAM Family to use on toc pages
 $TOC_HEAD_FAM Family of toc head entries
 $TOC_HEAD_FT Font of toc head entries
 $TOC_HEAD_ITEM A head as collected for TOC_ENTRIES
 $TOC_HEADER_FAM Family to use for "Contents"
 $TOC_HEADER_FT Font to use for "Contents"
 $TOC_HEADER_QUAD Quad direction of "Contents"
 $TOC_HEADER_SIZE ps in/decrease of "Contents"****
 $TOC_HEADER_STRING Header string of first toc page
 $TOC_LEAD Leading of toc pages
 $TOC_PH_ITEM Toc parahead entry
 $TOC_PN Sets up toc leaders + entry pn
 (typeset)
 $TOC_PN_FAM Family for toc entries page numbers
 $TOC_PN_FT Font for toc entries page numbers
 $TOC_PN_SIZE_CHANGE ps in/decrease of toc entries page
 numbers
 $TOC_PN_STYLE Page-numbering style of toc pages
 $TOC_PN_TYPEWRITE Sets up toc leaders + entry pn
 (typewrite)
 $TOC_PH_FAM Family of toc parahead entries
 $TOC_PH_FT Font of toc parahead entries
 $TOC_PARAHEAD_ITEM A parahead collected for TOC_ENTRIES
 $TOC_SH_FAM Family of toc subhead entries
 $TOC_SH_FT Font of toc subhead entries
 $TOC_SH_ITEM A subhead collected for TOC_ENTRIES
 $TOC_TITLE_FAM Family of toc doc title entries
 $TOC_TITLE_FT Font of toc doc title entries
 $TOC_TITLE_ITEM Toc document title item
 $USER_SET_TITLE_ITEM User defined toc doc title entry as
 set by TOC_TITLE_ENTRY
 $UR_PAGINATION_STYLE Pagination style prior to endnotes
 $USERDEF_HDRFTR_RECTO User defined header/footer recto string
 $USERDEF_HDRFTR_VERSO User defined header/footer verso string

+++PREPROCESSOR KEYWORDS+++

(eqn) EQ EN   (grn) GS GE GF   (pic) PS PE   (refer) R1 R2 [ ]

(tbl) TS TE TH   (grap) G1 G2   (ideal) IS IE   (chem) cstart cend

+++ALIASES+++

Please note:
Prior to version 1.1.9, all macros that included the word COLOR had
aliases that used COLOUR instead. This convenience has now been
removed, in an effort to reduce the size of the om.tmac file.

Furthermore, if you want the convenience, you'll have to edit the
om.tmac file. Simply aliasing, say, HEAD_COLOR as HEAD_COLOUR will
not work, owing to significant changes in the handling of
docelement control macros that end in _COLOR.

+++These aliases are for convenience, and header/footer management+++

BIBLIOGRAPHY_STRING_UNDERSCORE    BIBLIOGRAPHY_STRING_UNDERLINE
  CITATION                          BLOCKQUOTE
  CITE                              BLOCKQUOTE
  COL_BREAK                         COL_NEXT
  DOC_FAM                           DOC_FAMILY
  DOC_L_LENGTH                      DOC_LINE_LENGTH
  DOC_L_LENGTH                      DOC_LINE_LENGTH
  DOC_L_MARGIN                      DOC_LEFT_MARGIN
  DOC_L_MARGIN                      DOC_LEFT_MARGIN
  DOC_LS                            DOC_LEAD
  DOC_PS                            DOC_PT_SIZE
  DOC_R_MARGIN                      DOC_RIGHT_MARGIN
  DOC_R_MARGIN                      DOC_RIGHT_MARGIN
  ENDNOTE_STRING_UNDERSCORE         ENDNOTE_STRING_UNDERLINE
  ENDNOTE_TITLE_UNDERSCORE          ENDNOTE_TITLE_UNDERLINE
  FOOTER_CENTER_CAPS                HDRFTR_CENTER_CAPS
  FOOTER_CENTER                     HDRFTR_CENTER
  FOOTER_CENTRE_CAPS                HDRFTR_CENTER_CAPS
  FOOTER_CENTRE                     HDRFTR_CENTER
  FOOTER_LEFT_CAPS                  HDRFTR_LEFT_CAPS
  FOOTER_LEFT                       HDRFTR_LEFT
  FOOTER_PLAIN                      HDRFTR_PLAIN
  FOOTER_RECTO                      HDRFTR_RECTO
  FOOTER_RIGHT_CAPS                 HDRFTR_RIGHT_CAPS
  FOOTER_RIGHT                      HDRFTR_RIGHT
  FOOTER_RULE_GAP                   HDRFTR_RULE_GAP
  FOOTER_RULE                       HDRFTR_RULE
  FOOTER_VERSO                      HDRFTR_VERSO
  HDRFTR_RULE_INTERNAL              HDRFTR_RULE
  HEADER_CENTER_CAPS                HDRFTR_CENTER_CAPS
  HEADER_CENTER                     HDRFTR_CENTER
  HEADER_CENTRE_CAPS                HDRFTR_CENTER_CAPS
  HEADER_CENTRE                     HDRFTR_CENTER
  HEADER_LEFT_CAPS                  HDRFTR_LEFT_CAPS
  HEADER_LEFT                       HDRFTR_LEFT
  HEADER_PLAIN                      HDRFTR_PLAIN
  HEADER_RECTO                      HDRFTR_RECTO
  HEADER_RIGHT_CAPS                 HDRFTR_RIGHT_CAPS
  HEADER_RIGHT                      HDRFTR_RIGHT
  HEADER_RULE_GAP                   HDRFTR_RULE_GAP
  HEADER_RULE                       HDRFTR_RULE
  HEADER_VERSO                      HDRFTR_VERSO
  PAGENUM                           PAGENUMBER
  PAGINATION                        PAGINATE
  PP_FT                             PP_FONT
  PRINT_FOOTNOTE_RULE               FOOTNOTE_RULE
  SWITCH_FOOTERS                    SWITCH_HDRFTR
  SWITCH_HEADERS                    SWITCH_HDRFTR
  TOC_LS                            TOC_LEAD
  TOC_PS                            TOC_PT_SIZE

+++These aliases are used for docelement type-style control+++

AUTHOR_FAMILY                 _FAMILY
  AUTHOR_FONT                   _FONT
  AUTHOR_SIZE                   _SIZE
  BIBLIOGRAPHY_FAMILY           _FAMILY
  BIBLIOGRAPHY_FONT             _FONT
  BIBLIOGRAPHY_FOOTER_CENTER    BIBLIOGRAPHY_HDRFTR_CENTER
  BIBLIOGRAPHY_FOOTER_CENTRE    BIBLIOGRAPHY_HDRFTR_CENTRE
  BIBLIOGRAPHY_HEADER_CENTER    BIBLIOGRAPHY_HDRFTR_CENTER
  BIBLIOGRAPHY_HEADER_CENTRE    BIBLIOGRAPHY_HDRFTR_CENTRE
  BIBLIOGRAPHY_QUAD             _QUAD
  BIBLIOGRAPHY_STRING_FAMILY    _FAMILY
  BIBLIOGRAPHY_STRING_FONT      _FONT
  BIBLIOGRAPHY_STRING_QUAD      _QUAD
  BIBLIOGRAPHY_STRING_SIZE      _SIZE
  BLOCKQUOTE_AUTOLEAD           Q_AUTOLEAD
  BLOCKQUOTE_AUTOLEAD           QUOTE_AUTOLEAD
  BLOCKQUOTE_COLOR              _COLOR
  BLOCKQUOTE_FAMILY             _FAMILY
  BLOCKQUOTE_FONT               _FONT
  BLOCKQUOTE_QUAD               _QUAD
  BLOCKQUOTE_SIZE               _SIZE
  CHAPTER_TITLE_COLOR           _COLOR
  CHAPTER_TITLE_FAMILY          _FAMILY
  CHAPTER_TITLE_FONT            _FONT
  CHAPTER_TITLE_SIZE            _SIZE
  COVER_ATTRIBUTE_COLOR         _COLOR
  COVER_AUTHOR_COLOR            _COLOR
  COVER_AUTHOR_FAMILY           _FAMILY
  COVER_AUTHOR_FONT             _FONT
  COVER_AUTHOR_SIZE             _SIZE
  COVER_COLOR                   _COLOR
  COVER_COPYRIGHT_COLOR         _COLOR
  COVER_COPYRIGHT_FAMILY        _FAMILY
  COVER_COPYRIGHT_FONT          _FONT
  COVER_COPYRIGHT_QUAD          _QUAD
  COVER_COPYRIGHT_SIZE          _SIZE
  COVER_DOCTYPE_COLOR           _COLOR
  COVER_DOCTYPE_FAMILY          _FAMILY
  COVER_DOCTYPE_FONT            _FONT
  COVER_DOCTYPE_SIZE            _SIZE
  COVER_FAMILY                  _FAMILY
  COVER_MISC_COLOR              _COLOR
  COVER_MISC_QUAD               _QUAD
  COVER_SUBTITLE_COLOR          _COLOR
  COVER_SUBTITLE_FAMILY         _FAMILY
  COVER_SUBTITLE_FONT           _FONT
  COVER_SUBTITLE_SIZE           _SIZE
  COVER_TITLE_COLOR             _COLOR
  COVER_TITLE_FAMILY            _FAMILY
  COVER_TITLE_FONT              _FONT
  COVER_TITLE_SIZE              _SIZE
  DOC_COVER_ATTRIBUTE_COLOR     _COLOR
  DOC_COVER_AUTHOR_COLOR        _COLOR
  DOC_COVER_AUTHOR_FAMILY       _FAMILY
  DOC_COVER_AUTHOR_FONT         _FONT
  DOC_COVER_AUTHOR_SIZE         _SIZE
  DOC_COVER_COLOR               _COLOR
  DOC_COVER_COPYRIGHT_COLOR     _COLOR
  DOC_COVER_COPYRIGHT_FAMILY    _FAMILY
  DOC_COVER_COPYRIGHT_FONT      _FONT
  DOC_COVER_COPYRIGHT_QUAD      _QUAD
  DOC_COVER_COPYRIGHT_SIZE      _SIZE
  DOC_COVER_DOCTYPE_COLOR       _COLOR
  DOC_COVER_DOCTYPE_FAMILY      _FAMILY
  DOC_COVER_DOCTYPE_FONT        _FONT
  DOC_COVER_DOCTYPE_SIZE        _SIZE
  DOC_COVER_FAMILY              _FAMILY
  DOC_COVER_MISC_COLOR          _COLOR
  DOC_COVER_MISC_QUAD           _QUAD
  DOC_COVER_SUBTITLE_COLOR      _COLOR
  DOC_COVER_SUBTITLE_FAMILY     _FAMILY
  DOC_COVER_SUBTITLE_FONT       _FONT
  DOC_COVER_SUBTITLE_SIZE       _SIZE
  DOC_COVER_TITLE_COLOR         _COLOR
  DOC_COVER_TITLE_FAMILY        _FAMILY
  DOC_COVER_TITLE_FONT          _FONT
  DOC_COVER_TITLE_SIZE          _SIZE
  DOCHEADER_COLOR               _COLOR
  DOCHEADER_FAMILY              _FAMILY
  DOCHEADER_QUAD                _QUAD
  DOC_QUAD                      _QUAD
  DOCTYPE_FAMILY                _FAMILY
  DOCTYPE_FONT                  _FONT
  DOCTYPE_SIZE                  _SIZE
  ENDNOTE_BLOCKQUOTE_AUTOLEAD   Q_AUTOLEAD
  ENDNOTE_BLOCKQUOTE_AUTOLEAD   QUOTE_AUTOLEAD
  ENDNOTE_FAMILY                _FAMILY
  ENDNOTE_FONT                  _FONT
  ENDNOTE_LINENUMBER_FAMILY     _FAMILY
  ENDNOTE_LINENUMBER_FONT       _FONT
  ENDNOTE_LINENUMBER_SIZE       _SIZE
  ENDNOTE_NUMBER_FAMILY         _FAMILY
  ENDNOTE_NUMBER_FONT           _FONT
  ENDNOTE_NUMBER_SIZE           _SIZE
  ENDNOTE_QUAD                  _QUAD
  ENDNOTE_QUOTE_AUTLOEAD        Q_AUTOLEAD
  ENDNOTE_QUOTE_AUTOLEAD        QUOTE_AUTOLEAD
  ENDNOTE_STRING_FAMILY         _FAMILY
  ENDNOTE_STRING_FONT           _FONT
  ENDNOTE_STRING_QUAD           _QUAD
  ENDNOTE_STRING_SIZE           _SIZE
  ENDNOTE_TITLE_FAMILY          _FAMILY
  ENDNOTE_TITLE_FONT            _FONT
  ENDNOTE_TITLE_QUAD            _QUAD
  ENDNOTE_TITLE_SIZE            _SIZE
  EPIGRAPH_COLOR                _COLOR
  EPIGRAPH_FAMILY               _FAMILY
  EPIGRAPH_FONT                 _FONT
  EPIGRAPH_QUAD                 _QUAD
  EPIGRAPH_SIZE                 _SIZE
  FINIS_COLOR                   _COLOR
  FOOTNOTE_COLOR                _COLOR
  FOOTNOTE_FAMILY               _FAMILY
  FOOTNOTE_FONT                 _FONT
  FOOTNOTE_QUAD                 _QUAD
  FOOTNOTE_SIZE                 _SIZE
  HDRFTR_CENTER_FAMILY          _FAMILY
  HDRFTR_CENTER_FONT            _FONT
  HDRFTR_CENTER_SIZE            _SIZE
  HDRFTR_COLOR                  _COLOR
  HDRFTR_FAMILY                 _FAMILY
  HDRFTR_LEFT_FAMILY            _FAMILY
  HDRFTR_LEFT_FONT              _FONT
  HDRFTR_LEFT_SIZE              _SIZE
  HDRFTR_RIGHT_FAMILY           _FAMILY
  HDRFTR_RIGHT_FONT             _FONT
  HDRFTR_RIGHT_SIZE             _SIZE
  HDRFTR_RULE_COLOR             _COLOR
  HDRFTR_SIZE                   _SIZE
  HEAD_COLOR                    _COLOR
  HEAD_FAMILY                   _FAMILY
  HEAD_FONT                     _FONT
  HEAD_QUAD                     _QUAD
  HEAD_SIZE                     _SIZE
  LINEBREAK_COLOR               _COLOR
  LINENUMBER_FAMILY             _COLOR
  LINENUMBER_FONT               _COLOR
  LINENUMBER_SIZE               _COLOR
  LINENUMBER_COLOR              _COLOR
  MISC_COLOR                    _COLOR
  MISC_QUAD                     _QUAD
  PAGENUM_COLOR                 _COLOR
  PAGENUM_FAMILY                _FAMILY
  PAGENUM_FONT                  _FONT
  PARAHEAD_COLOR                _COLOR
  PARAHEAD_FAMILY               _FAMILY
  PARAHEAD_FONT                 _FONT
  PARAHEAD_SIZE                 _SIZE
  QUOTE_COLOR                   _COLOR
  QUOTE_FAMILY                  _FAMILY
  QUOTE_FONT                    _FONT
  QUOTE_INDENT                  _INDENT
  QUOTE_SIZE                    _SIZE
  REF_INDENT                    INDENT_REFS
  REF)                          REF_BRACKETS_END
  REF]                          REF_BRACKETS_END
  REF}                          REF_BRACKETS_END
  REF(                          REF_BRACKETS_START
  REF[                          REF_BRACKETS_START
  REF{                          REF_BRACKETS_START
  SUBHEAD_COLOR                 _COLOR
  SUBHEAD_FAMILY                _FAMILY
  SUBHEAD_FONT                  _FONT
  SUBHEAD_SIZE                  _SIZE
  SUBTITLE_COLOR                _COLOR
  SUBTITLE_FAMILY               _FAMILY
  SUBTITLE_FONT                 _FONT
  SUBTITLE_SIZE                 _SIZE
  TITLE_COLOR                   _COLOR
  TITLE_FAMILY                  _FAMILY
  TITLE_FONT                    _FONT
  TITLE_SIZE                    _SIZE
  TOC_FAM                       _FAMILY
  TOC_FAMILY                    _FAMILY
  TOC_HEADER_FAMILY             _FAMILY
  TOC_HEADER_FONT               _FONT
  TOC_HEADER_QUAD               _QUAD
  TOC_HEADER_SIZE               _SIZE
  TOC_HEAD_FAMILY               _FAMILY
  TOC_HEAD_FONT                 _FONT
  TOC_HEAD_SIZE                 _SIZE
  TOC_PARAHEAD_FAMILY           _FAMILY
  TOC_PARAHEAD_FONT             _FONT
  TOC_PARAHEAD_SIZE             _SIZE
  TOC_PN_FAMILY                 _FAMILY
  TOC_PN_FONT                   _FONT
  TOC_PN_SIZE                   _SIZE
  TOC_PT_SIZE                   _SIZE
  TOC_SUBHEAD_FAMILY            _FAMILY
  TOC_SUBHEAD_FONT              _FONT
  TOC_SUBHEAD_SIZE              _SIZE
  TOC_TITLE_FAMILY              _FAMILY
  TOC_TITLE_FONT                _FONT
  TOC_TITLE_SIZE                _SIZE

+++These aliases are used to control underlining/underscoring weights+++

UNDERSCORE_WEIGHT RULE_WEIGHT
 HEAD_UNDERLINE_WEIGHT RULE_WEIGHT
 HEADER_RULE_WEIGHT RULE_WEIGHT
 FOOTER_RULE_WEIGHT RULE_WEIGHT
 FOOTNOTE_RULE_WEIGHT RULE_WEIGHT
 COVER_UNDERLINE_WEIGHT RULE_WEIGHT
 DOC_COVER_UNDERLINE_WEIGHT RULE_WEIGHT
 ENDNOTE_STRING UNDERLINE_WEIGHT RULE_WEIGHT
 ENDNOTE_TITLE UNDERLINE_WEIGHT RULE_WEIGHT
 BIBLIOGRAPHY_STRING UNDERLINE_WEIGHT RULE_WEIGHT

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