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DOCUMENT HEADERS, FOOTERS, AND PAGINATION
	
#HEADFOOTPAGE_INTROIntroduction -- VERY IMPORTANT; read me! 	
		
#PAGINATION_NOTEAn important note on pagination 	
	
#DESCRIPTION_GENERALGeneral description of headers/footers 	
#HEADER_STYLEDefault specs for headers/footers 	
#VERTICAL_SPACINGVertical placement and spacing of headers/footers 	
#HEADFOOT_MANAGEMENTManaging headers/footers 	
		
#HEADERSHEADERS  -- on or off
		
#FOOTERSFOOTERS  -- on or off
		
#FOOTER_ON_FIRST_PAGEFOOTER_ON_FIRST_PAGE 		
#USERDEF_HDRFTRUser-defined, single string recto/verso headers/footers 		
			
#USERDEF_HDRFTR_INTROIntroduction 			
#HDRFTR_RECTOVERSOHEADER_RECTO, HEADER_VERSO 		
	
	
#HEADFOOT_CONTROLControl macros for headers/footers 	
		
#HDRFTR_STRINGSHeader/footer strings 		
#HDRFTR_STYLEHeader/footer style 		
			
#HDRFTR_STYLE_GLOBALGlobal style control 			
#HDRFTR_STYLE_PARTPart-by-part style control 		
		
#HDRFTR_VERTICALVertical placement and spacing of headers/footers 		
			
#HDRFTR_MARGINHEADER_MARGIN 			
#HDRFTR_GAPHEADER_GAP 		
		
#HDRFTR_SEPARATORThe header/footer separator rule 		
			
#HDRFTR_RULEHEADER_RULE  -- on or off
			
#HDRFTR_RULE_GAPHEADER_RULE_GAP  -- distance of rule from header/footer
		
	
	
#PAGINATIONPagination 	
	    
#INDEX_PAGINATIONPagination control macros 	
	
Introduction
definitions.html#TERMS_HEADERHeaders and
definitions.html#TERMS_FOOTERfooters ,
as defined in the section
definitions.html#TERMS_MOMMom's Document Processing Terms ,
are those parts of a document that contain information about the document
itself which appear in the margins either above or below
definitions.html#TERMS_RUNNINGrunning text .
They are, in all respects but two, identical.  The differences are:
	
headers appear in the margin above running text while
		footers appear in the margin 
beneath running text;
	
the (optional) rule that separates headers from running
		text appears 
below the header while
		the (optional) rule that separates footers from running
		text appears 
above the footer.
Because headers and footers are virtually identical, this
documentation addresses itself only to headers.  In all cases,
unless otherwise noted, descriptions of headers
describe footers as well.
Furthermore, any
definitions.html#TERMS_CONTROLMACROcontrol macro that begins with 
HEADER_ may be used to control
footers, simply by replacing 
HEADER_ with
FOOTER_.
Author's note: Left to their own devices (i.e. if
you're happy with the way 
mom does things by default),
headers are something you never have to worry about.  You can skip
reading this section entirely.  But if you want to change them, be
advised that headers have more macros to control their appearance than
any other document element.  The text of this documentation becomes
correspondingly dense at this point.
NOTE: While the single page number that
mom generates in either the top or bottom margin
above or below running text is technically a kind of header/footer,
mom and this documentation treat it as a
separate page element.
General description of headers/footers
Headers comprise three distinct parts: a left part, a center part,
and a right part.  Each part contains text (a "string")
that identifies some aspect of the document as a whole.
The left part ("header left") lines up with the document's
left margin.  The center part ("header center") is
centered on the document's line length.  The right part ("header
right") lines up with the document's right margin.  Not all parts
need contain a string, and if you don't want headers at all, you can
turn them off completely.
A note to groff experts: Although
mom's headers resemble the three-part titles generated
by 
.tl, they're in no way related to it, nor based
upon it.  
.tl is not used at all in mom.
Normally, 
mom fills headers with strings appropriate
to the document type selected with
docprocessing.html#DOCTYPEDOCTYPE .
You can, however, supply whatever strings you like -- including page
numbers -- to go in any part of headers.  What's more, you can set the
family, font, size and capitalisation style (caps or caps/lower-case)
for each header part individually.
By default, 
mom prints a horizontal rule beneath
headers to separate them visually from running text.  In the case of
footers, the rule is 
above running text.  You can increase
or decrease the space between the header and the rule if you like (with
#HDRFTR_RULE_GAPHEADER_RULE_GAP ),
or remove it completely.
Default specs for headers/footers
Mom makes small type adjustments to each part of
the header (left, center, right) to achieve an aesthetically
pleasing result.  The defaults are listed below.  (The strings
mom puts by default in each part are explained in
docprocessing.html#DOCTYPEDOCTYPE .)
NOTE: Except for capitalization (all caps or
caps/lower-case), these defaults apply only to
docprocessing.html#PRINTSTYLEPRINTSTYLE TYPESET .
TYPE SPEC    HEADER LEFT         HEADER CENTER       HEADER RIGHT
---------    -----------         -------------       ------------
Family       document default    document default    document default
Font         roman               italic              roman
All caps     no                  no                  yes
Size*        -.5 (points)        -.5 (points)        -2 (points)
            (-2 if all caps)    (-2 if all caps)    (-.5 if not all caps)
*Relative to the point size of type in paragraphs
You can, of course, change any of the defaults using the appropriate
control macros.  And should you wish to design headers from the ground
up, 
mom has a special macro,
#HDRFTR_PLAINHEADER_PLAIN ,
that removes all type adjustments to headers.  The straightforward
type specs for paragraphs are used instead, providing a simple
reference point for any alterations you want to make to the family,
font, size and capitalisation style of any header part.
Vertical placement and spacing of headers/footers
As explained in the section on
typedocmac.htmltypesetting macros in document processing ,
the top and bottom margins of a 
mom document
are the vertical start and end positions of
definitions.html#TERMS_RUNNINGrunning text ,
not the vertical positions of headers or footers, which, by definition,
appear in the margin 
above (or below) running text.
The vertical placement of headers
is controlled by the macro
#HDRFTR_MARGINHEADER_MARGIN ,
which establishes the
definitions.htmlbaseline position of headers relative to the 
top edge of the page.
The header rule, whose position is relative to the header itself,
is controlled by a separate macro.
FOOTER_MARGIN establishes the baseline position of
footers relative to the 
bottom edge of the page.
#HDRFTR_GAPHEADER_GAP  establishes
the distance between headers and the 
start of running text (effectively
making 
HEADER_MARGIN + HEADER_GAP the top margin of
running text unless you give 
mom a literal top margin
(with
typesetting.html#T_MARGINT_MARGIN ),
in which case she ignores 
HEADER_GAP and starts
running text at whatever top margin you gave.
FOOTER_GAP and
typesetting.html#B_MARGINB_MARGIN work similarly, except they determine where running text
ends on the page.
Confused?  
Mom apologizes.  It's really quite
simple.  By default, 
mom sets headers 4-1/2
definitions.html#TERMS_PICASPOINTSpicas down from the top of the page and starts running text 3 picas (the
HEADER_GAP) beneath that, which means the
effective top margin of running text is 7-1/2 picas (visually approx. 1
inch).  If you give 
mom a literal top margin (with
typesetting.html#T_MARGINT_MARGIN ),
she ignores the 
HEADER_GAP and starts running
text at whatever top margin you gave.
Footers are treated the same way, the only difference being the
default distances.  
Mom sets footers 3 picas up from
the bottom of the page, and interrupts the processing of running text 3
picas (the 
FOOTER_GAP) above that (again, visually
approx. 1 inch).  If you give 
mom a literal bottom
margin (with 
typesetting.html#B_MARGINB_MARGIN ), she ignores the
FOOTER_GAP and interrupts the processing of running
text at whatever bottom margin you gave.
If 
mom is paginating your document (she
does, by default, at the bottom of each page), the vertical
spacing and placement of page numbers, whether at the top
or the bottom of the page, is managed exactly as if the
page numbers were headers (or footers), and are controlled
by the same macros.  See
#PAGINATIONPagination control .
	
Managing headers/footers
The following are the basic macros for turning
definitions.html#TERMS_HEADERheaders or
definitions.html#TERMS_FOOTERfooters on or off.  They should be invoked prior to
docprocessing.html#STARTSTART .
By default, 
mom prints page headers.  If you turn
them off, she will begin
definitions.html#TERMS_RUNNINGrunning text on each page with a default top margin of 6
definitions.html#TERMS_PICASPOINTSpicas unless you have requested a different top margin (with
typesetting.html#T_MARGINT_MARGIN )
prior to
docprocessing.html#STARTSTART .
Please note that headers and footers are mutually exclusive.  If
headers are on, footers (but NOT bottom-of-page numbering) are
automatically turned off.  Equally, if footers are on, headers
(but NOT top-of-page numbering) are automatically turned off.  Thus, if
you'd prefer footers in a document, you need only invoke
#FOOTERSFOOTERS ;
there's no need to turn headers off first.
Macro: 
HEADERS toggle definitions.html#TERMS_HEADERPage headers are on by default.  If you don't want them, turn them off by
invoking 
HEADERS with any argument
(
OFF, QUIT, END, X...), e.g.
	.HEADERS OFF
NOTE: HEADERS automatically
disables 
definitions.html#TERMS_FOOTERfooters (you can't have both), but not the page numbers that normally
appear at the bottom of the page.
ADDITIONAL NOTE: If HEADERSare 
OFF, mom's normal top
margin for
definitions.html#TERMS_RUNNINGrunning text (7.5
definitions.html#TERMS_PICASPOINTSpicas )
changes to 6 picas (visually approx. 1 inch).  This does NOT apply
to the situation where footers have been explicitly turned on
(with
#FOOTERSFOOTERS ).
Explicitly invoking footers moves page numbering to the
top of the page, where its placement and spacing are the same as
for headers.  (I.e. the top margin of running text remains 7.5
picas.)
Macro: 
FOOTERS toggle definitions.html#TERMS_FOOTERPage footers are off by default.  If you want them instead of
definitions.html#TERMS_HEADERheaders (you can't have both), turn them on by invoking
FOOTERS without an argument, e.g.
	.FOOTERS
FOOTERS automatically disables headers, and
mom shifts the placement of page numbers from their
normal position at page bottom to the top of the page.
NOTE: By default, when footers are on,
mom does not print a page number on the first
page of a document, nor on first pages after
rectoverso.html#COLLATECOLLATE .
If you don't want this behaviour, you can change it with
#PAGENUM_ON_FIRST_PAGEPAGENUM_ON_FIRST_PAGE .
Macro: 
FOOTER_ON_FIRST_PAGE toggleIf you invoke
#FOOTERSFOOTERS ,
mom, by default, does not print a footer on the
first page of the document.  (The
definitions.htmldocheader on page makes it redundant.)  However, should you wish a footer on
page 1, invoke 
FOOTER_ON_FIRST_PAGE without any argument.
	
User-defined, single string recto/verso headers/footers
Introduction
Sometimes, you'll find you can't get 
mom's handling
of 3-part headers or footers to do exactly what you want in the
order you want.  This is most likely happen when you want the
information contained in the headers/footers split over two pages,
as is often the case with recto/verso documents.
Say, for example, you want recto page headers to contain a document's
author, centered, and verso page headers to contain the document's
title, also centered, like this:
	+------------------------+   +------------------------+     
	|         Author         |   |         Title          |     
	|                        |   |                        |     
	|                        |   |                        |     
	|                        |   |                        |     
	|                        |   |                        |     
	|                        |   |                        |     
	|                        |   |                        |     
	|                        |   |                        |     
	|                        |   |                        |     
	|                        |   |                        |     
	|                        |   |                        |     
	|                        |   |                        |     
	|                        |   |                        |     
	|                        |   |                        |     
	+------------------------+   +------------------------+     
With 
mom's standard 3-part headers, this isn't
possible, even when
rectoverso.html#RECTO_VERSORECTO_VERSO is enabled.  
RECTO_VERSO switches the left and
right parts of headers on alternate pages, but the center
part remains unchanged.
Anytime you need distinctly different headers on alternate
pages, 
mom has macros that let you manually
design and determine what goes into headers on recto pages, and
what goes into headers on verso pages.  The macros are
#HDRFTR_RECTOHEADER_RECTO and
#HDRFTR_VERSOHEADER_VERSO .
Both allow you to state whether the header is flush left, centered,
or flush right, and both take a single
definitions.html#TERMS_STRINGARGUMENTstring argument with which, by combining text and
definitions.html#TERMS_INLINESinline escapes ,
you can make the headers come out just about any way you want.
Use of the 
\*[PAGE#] escape is permitted in the
string argument (see
#PAGE_NUMBER_INCLIncluding the page number in header-left, -center or -right ),
and 
mom provides a special mechanism whereby
it's possible to "pad" it as well.
Macro: 
HEADER_RECTO LEFT | CENTER | RIGHT "<header recto string>"Macro: 
HEADER_VERSO LEFT | CENTER | RIGHT "<header verso string>"HEADER_RECTO and HEADER_VERSO behave
identically, hence all references to 
HEADER_RECTOin this section also refer to 
HEADER_VERSO.
Furthermore, 
FOOTER_ can be used instead of
HEADER_ to set up recto/verso footers.
The first argument to 
HEADER_RECTO is the
direction in which you want the header
definitions.html#TERMS_QUADquadded .
L, C and R may be used in
place of 
LEFT, CENTER and
RIGHT.  The second argument is a string,
surrounded by double-quotes, containing what you want in the
header.  
HEADER_RECTO disables mom's
normal 3-part headers, therefore anything you want in the
headers must be entered by hand in the string.
By default, 
HEADER_RECTO is set at the same
size, and in the same family and font, as paragraph text.  The
control macros
#HDRFTR_GLOBAL_FAMILYHEADER_FAMILY and
#HDRFTR_GLOBAL_SIZEHEADER_SIZE may be used to change the default family and size.  Changes to
the font(s) within the string must be accomplished with the
definitions.html#TERMS_INLINESinline escapes \*[ROM], \*[IT], \*[BD], \*[BDI] and
\*[PREV] (see
inlines.html#INLINE_FONTS_MOMChanging fonts ).
Additional refinements to the style of the header-recto string,
including horizontal spacing and/or positioning, can also be made with
inline escapes.
To include the current page number in the string, use the
\*[PAGE#] inline.
Padding the HEADER_RECTO/HEADER_VERSO string
You can "pad" the header-recto string, a convenience you'll
appreciate in circumstances such as the following.
	           VERSO                       RECTO 
	+------------------------+   +------------------------+     
	| Author          Page#  |   | Page#            Title |     
	|                        |   |                        |     
	|                        |   |                        |     
	|                        |   |                        |     
	|                        |   |                        |     
	|                        |   |                        |     
	|                        |   |                        |     
	|                        |   |                        |     
	|                        |   |                        |     
	|                        |   |                        |     
	|                        |   |                        |     
	|                        |   |                        |     
	|                        |   |                        |     
	|                        |   |                        |     
	+------------------------+   +------------------------+     
To pad the string argument passed to 
HEADER_RECTO,
begin and end the string (inside the double-quotes) with the caret
character (
^).  Enter the pound sign (#) at any
point in the string where you want an equalized amount of whitespace
inserted.  (If you're unsure what padding is, see
goodies.html#PADInsert space into lines .)
Note that if you're padding the string, it doesn't matter what
quad direction you give 
HEADER_RECTO.
The situation depicted above is accomplished like this:
	.HEADER_RECTO LEFT "^\*[PAGE#]#Title^"
	.HEADER_VERSO LEFT "^Author#\*[PAGE#]^"
Note that 
mom does not interpret the #in 
\*[PAGE#] as a padding marker (i.e. as a place
to insert whitespace).
IMPORTANT: The
goodies.html#PAD_MARKERPAD_MARKER macro, which changes the default pad marker (
#) used by
goodies.html#PADPAD ,
has no effect on the pad marker used in the
HEADER_RECTO string.  If you absolutely must
have a literal pound sign in your 
HEADER_RECTOstring, use the escape sequence 
\N'35' where you want
the pound sign to go.
	
Control macros for headers/footers
Virtually every part of headers (see the paragraph on how
#HEADERFOOTER"headers" means "footers" in the
#HEADFOOTPAGE_INTROintroduction to headers/footers )
can be designed to your own specifications.
	
Header/footer control macros
	
#HDRFTR_STRINGSSTRINGS 	
		
#HDRFTR_LEFTHEADER_LEFT 		
#HDRFTR_CENTERHEADER_CENTER 		
#HDRFTR_RIGHTHEADER_RIGHT 		
#PAGE_NUMBER_SYMBOLReplacing header left, center or right with the page number 		
#PAGE_NUMBER_INCLIncluding the  page number in header left, center or right 	
	
#HDRFTR_STYLESTYLE 	
		
#HDRFTR_STYLE_GLOBALGlobal changes 		
#HDRFTR_GLOBAL_FAMILYHEADER_FAMILY  -- family for entire header
		
#HDRFTR_GLOBAL_SIZEHEADER_SIZE    -- size for entire header
		
HDRFTR_PLAINHDRFTR_PLAIN   -- disable default adjustments to header parts
	
	
		
#HDRFTR_STYLE_PARTPart-by-part changes 		
#_FAMILY_FAMILY  -- left, center or right family
		
#_FONT_FONT    -- left, center or right font
		
#_SIZE_SIZE    -- left, center or right size
		
#_CAPS_CAPS    -- left, center or right all caps
	
	
#HDRFTR_VERTICALVERTICAL PLACEMENT AND SPACING 	
		
#HDRFTR_MARGINHEADER_MARGIN 		
#HDRFTR_GAPHEADER_GAP 	
	
#HDRFTR_SEPARATORSEPARATOR RULE 	
		
#HDRFTR_RULEHEADER_RULE 		
#HDRFTR_RULE_GAPHEADER_RULE_GAP 	
Header/footer strings
	Macro: 
HEADER_LEFT "<text of header left>" | # 	Macro: 
HEADER_CENTER "<text of header center>" | # 	Macro: 
HEADER_RIGHT "<text of header right>" | # To change the text (the "string") of the left, center,
or right part of headers, invoke the appopriate macro above with
the string you want.  For example, 
mom, by default,
prints the document's author in the header-left position.  If your
document has, say, two authors, and you want both their names to
appear header-left, change 
HEADER_LEFT like this:
	.HEADER_LEFT "R. Stallman, E. Raymond"
Because the arguments to 
HEADER_LEFT, _CENTER,and 
_RIGHT are
definitions.html#TERMS_STRINGARGUMENTstring arguments ,
they must be enclosed in double-quotes.
NOTE: Replace HEADER_, above,
with 
FOOTER_ to change the strings in footers.
	
Replacing header-left, -center or -right with the page number
If you would like to have the current page number to appear 
header-left, -center, or -right 
instead of a text
string, invoke the appropriate macro, above, with the single
argument 
# (the "number" or
"pound" sign).  Do 
NOT use
double-quotes.  For example,
	.HEADER_CENTER #
 
will print the current page number in the center part of
headers.
	
Including the page number in header-left, -center or -right
If you would like to 
include the current page number in
the string you pass to 
HEADER_LEFT, _CENTER, or
_RIGHT, use the special
definitions.html#TERMS_INLINESinline escape \*[PAGE#] in the string argument.
For example, say you have a document that's ten pages long, and
you want header-right to say "page <whichever> of 10",
invoke 
HEADER_RIGHT as follows:
	.HEADER_RIGHT "page \*[PAGE#] of 10"
Header-right of page two will read "page 2 of 10",
header-right of page three will read "page 3 of 10",
and so on.
Header/footer style
Global changes The following macros allow you to make changes that affect all
parts of the header at once.
Please note that 
HEADER_FAMILY and
HEADER_FONT have no effect on
docprocessing.html#PRINTSTYLEPRINTSTYLE TYPEWRITE .
	
#HDRFTR_GLOBAL_FAMILYHEADER_FAMILY 	
#HDRFTR_GLOBAL_SIZEHEADER_SIZE 	
#HDRFTR_PLAINHEADER_PLAIN 	Macro: 
HEADER_FAMILY <family> By default, 
mom uses the default document family
for headers.  If you would like her to use another
definitions.html#TERMS_FAMILYfamily in headers, invoke 
HEADER_FAMILY with the identifier
for the family you want.  The argument is the same as for the
typesetting macro
typesetting.html#FAMILYFAMILY .
NOTE: Replace HEADER_, above,
with 
FOOTER_ to change the footer family.
	Macro: 
HEADER_SIZE <+|-number of points>	
	
*Argument is relative to the point size of type in paragraphs By default, 
mom makes small adjustments to the size
of each part of a header to achieve an aesthetically pleasing result.
If you'd like her to continue to do so, but would like the overall
appearance of headers to be a little smaller or a little larger,
invoke 
HEADER_SIZE with + or - the number of
definitions.html#TERMS_PICASPOINTSpoints (fractions allowed) by which you want her to in/decrease the size
of headers.  For example,
	.HEADER_SIZE +.75
increases the size of every part of a header by 3/4 of a point while
respecting 
mom's own little size changes.
See
docelement.html#CONTROL_MACRO_ARGSArguments to the control macros for an explanation of how control macros ending in
_SIZE work.
NOTE: Replace HEADER_, above,
with 
FOOTER_ to change the footer size.
ADDITIONAL NOTE: Normally, macros that control headers have no
effect on
docprocessing.html#PRINTSTYLEPRINTSTYLE TYPEWRITE .
HEADER_SIZE is an exception.  While all parts of a
header in 
PRINTSTYLE TYPEWRITE are always the same
size, you can use 
HEADER_SIZE with PRINTSTYLE
TYPEWRITE
 to reduce the header's overall point size.
You'll most likely require this when the
docprocessing.html#COPYSTYLECOPYSTYLE is 
DRAFT, since portions of the header may overprint
if, say, the title of your document is very long.
	Macro: 
HEADER_PLAIN By default, 
mom makes adjustments to the font,
size, and capitalization style of each part of headers to achieve
an aesthetically pleasing look.  Should you wish to design your own
headers from the ground up without worrying how changes to the various
elements of header style interact with 
mom's defaults,
invoke 
HEADER_PLAIN by itself, with no argument.
Mom will disable her default behaviour for headers,
and reset all elements of header style to the same family, font,
and point size as she uses in paragraphs.
NOTE: Replace HEADER_, above,
with 
FOOTER_ to disable mom's
default behaviour for the various elements of footer style.
Part by part changes NOTE: When using the following control macros,
replace "<POSITION>" by 
LEFT, CENTER,or 
RIGHT as appropriate.
	
#_FAMILYHEADER_<POSITION>_FAMILY 	
#_FONTHEADER_<POSITION>_FONT 	
#_SIZEHEADER_<POSITION>_SIZE 	
#_CAPSHEADER_<POSITION>_CAPS 	Macro: 
HEADER_<POSITION>_FAMILY <family> Use 
HEADER_<POSITION>_FAMILY to change the
definitions.html#TERMS_FAMILYfamily of any part of headers.  See
docelement.html#CONTROL_MACRO_ARGSArguments to the control macros for an explanation of how control macros ending in
_FAMILY work.
NOTE: Replace HEADER_, above,
with 
FOOTER_ to change a footer part's family.
	Macro: 
HEADER_<POSITION>_FONT <font> Use 
HEADER_<POSITION>_FONT to change the
definitions.html#TERMS_FONTfont of any part of headers.  See
docelement.html#CONTROL_MACRO_ARGSArguments to the control macros for an explanation of how control macros ending in
_FONT work.
NOTE: Replace HEADER_, above,
with 
FOOTER_ to change a footer part's font.
	Macro: 
HEADER_<POSITION>_SIZE <+|-number of points> Use 
HEADER_<POSITION>_SIZE to change the size of any
part of headers (relative to the point size of type in
paragraphs).  See
docelement.html#CONTROL_MACRO_ARGSArguments to the control macros for an explanation of how control macros ending in
_SIZE work.
NOTE: Replace HEADER_, above,
with 
FOOTER_ to change a footer part's size.
	Macro: 
HEADER_<POSITION>_CAPS toggle HEADER_<POSITION>_CAPS is a
definitions.html#TERMS_TOGGLEtoggle macro .
If you want any part of headers to be set in all caps,
regardless of the capitalization of that part's string as given
to the
docprocessing.html#REFERENCE_MACROSreference macros or as defined by you with the
#HDRFTR_STRINGSheader string control macros ,
simply invoke this macro (using the appropriate position) with no
argument.  If you wish to turn capitalization off (say, for the
header-right string that 
mom capitalizes by
default), invoke the argument with any argument (e.g. 
OFF,
QUIT, END, X...
).
NOTE: Replace HEADER_, above,
with 
FOOTER_ to change a footer part's
capitalization style.
	
Header/footer vertical placement and spacing
See
#VERTICAL_SPACINGVertical placement and spacing of headers/footers for an explanation of how 
mom deals with
headers, footers, and top/bottom page margins.
Macro: 
HEADER_MARGIN <distance to baseline of header>*Requires a definitions.html#TERMS_UNITOFMEASUREunit of measure Use 
HEADER_MARGIN to set the distance from the
top edge of the page to the
definitions.html#TERMS_BASELINEbaseline of type in headers.  A unit of measure is required, and decimal
fractions are allowed.
Mom's default header margin is 4-1/2
definitions.html#TERMS_PICASPOINTSpicas ,
but if you want a different margin, say, 1/2-inch, do
	.HEADER_MARGIN .5i
If your document uses
definitions.html#TERMS_FOOTERfooters ,
replace 
HEADER_, above, with
FOOTER_.  The argument to
FOOTER_MARGIN is the distance from the bottom
edge of the page to the baseline of type in footers.
Mom's default footer margin is 3 
definitions.html#TERMS_PICASPOINTSpicas .
NOTE: Mom uses
HEADER_MARGIN and
FOOTER_MARGIN to establish the baseline
position of page numbers in addition to headers and footers.
By default, page numbers appear at the bottom of the page, therefore
if you want the default position (bottom), but want to change the
baseline placement, use 
FOOTER_MARGIN.  Conversely,
if page numbers are at the top of the page, either because you turned
#FOOTERSFOOTERS on or because you instructed 
mom to put them
there with
#PAGENUM_POSPAGENUM_POS ,
you'd use 
HEADER_MARGIN to change their
baseline placement.
Macro: 
HEADER_GAP <distance from header to start of running text>*Requires a definitions.html#TERMS_UNITOFMEASUREunit of measure Use 
HEADER_GAP to set the distance from the
definitions.html#TERMS_BASELINEbaseline of type in headers to the start of
definitions.html#TERMS_RUNNINGrunning text .
A unit of measure is required, and decimal fractions are allowed.
As explained in
#VERTICAL_SPACINGVertical placement and spacing of headers/footers ,
HEADER_MARGIN + HEADER_GAP determine the
default vertical starting position of running text on the page
UNLESS you have given 
mom your own top margin
(with
typesetting.html#T_MARGINT_MARGIN ).  If you give
a top margin, 
mom ignores
HEADER_GAP; running text starts at your stated
top margin.
Mom's default header gap is 3
definitions.html#TERMS_PICASPOINTSpicas ,
but if you want a different gap, say, 2 centimeters, do
	.HEADER_GAP 2c
If your document uses
definitions.html#TERMS_FOOTERfooters ,
replace 
HEADER_, above, with
FOOTER_.  The argument to
FOOTER_GAP is the distance from the
baseline of type in footers to the last baseline of running text
on the page.
As explained in
#VERTICAL_SPACINGVertical placement and spacing of headers/footers ,
FOOTER_MARGIN + FOOTER_GAP determine the
default vertical end position of running text on the page
UNLESS you have given 
mom a bottom  margin
(with
typesetting.html#B_MARGINB_MARGIN ).  If you give
a bottom margin, 
mom ignores
FOOTER_GAP; running text ends at your stated
bottom margin.
Mom's default footer gap is 3 
definitions.html#TERMS_PICASPOINTSpicas .
NOTE: Mom uses
HEADER_GAP and
FOOTER_GAP to establish the start and end baseline
positions of running text with respect to both headers and footers
AND page numbers.  If you wish to change the gap between
the last line of running text and a bottom page number, use
FOOTER_GAP.  If page numbers are at the top of the
page, change the gap between the number and the first line of running
text with 
HEADER_GAP.
	
Header/footer separator rule
The header/footer separator rule is a modest horizontal rule,
set slightly below the header (or above the footer), that runs
the length of the
definitions.html#TERMS_HEADERheader and helps separate it visually from
definitions.html#TERMS_RUNNINGrunning text .  If
you don't want the rule, you can turn it off.  If you want it,
but at a different vertical position relative to the header (or
footer), you can alter its placement.
	
#HDRFTR_RULEHEADER_RULE  -- on or off
	
#HDRFTR_RULE_GAPHEADER_RULE_GAP  -- distance of rule from header
Macro: 
HEADER_RULE toggleBy default, 
mom prints a header separator rule
underneath headers (or above footers). If you don't want the
rule, turn it off by invoking 
HEADER_RULE with any
argument (
OFF, QUIT, END, X...), e.g.
	.HEADER_RULE OFF
To turn the rule (back) on, invoke 
HEADER_RULEwithout any argument.
NOTE: Replace HEADER_, above,
with 
FOOTER_ to enable/disable the printing of
the footer separator rule.  (Most likely, if you're using
#FOOTERSFOOTERS , you'll want it off.)
Macro: 
HEADER_RULE_GAP distance of rule beneath header*Requires a definitions.html#TERMS_UNITOFMEASUREunit of measure HEADER_RULE_GAP is the distance from the
definitions.html#TERMS_BASELINEbaseline of type in headers to the rule underneath.  A unit of measure is
required, and decimal fractions are allowed.  Please note that
HEADER_RULE_GAP has no effect on
#HEADER_GAPHEADER_GAP (i.e. 
HEADER_RULE_GAP is NOT added to
HEADER_GAP when mom calculates
the space between headers and the start of
definitions.html#TERMS_RUNNINGrunning text .
By default, the header rule gap is 4
definitions.html#TERMS_PICASPOINTSpoints .
If you'd like to change it to, say, 1/4
definitions.html#TERMS_EMem , do
	.HEADER_RULE_GAP .25m
NOTE: Replace HEADER_, above,
with 
FOOTER_ if you're using
definitions.html#TERMS_FOOTERfooters and want to change the separator rule gap.  In footers, the gap
is measured from the top of the tallest
definitions.html#TERMS_ASCENDERascender in the footer.
ADDITIONAL NOTE: When using
#HDRFTR_RECTOVERSOFOOTER_RECTO and
#HDRFTR_RECTOVERSOFOOTER_VERSO ,
make sure that the default size for footers
(
#FOOTER_GLOBAL_SIZEFOOTER_SIZE )
is set to the largest size of type that will be used in the
footer or 
mom may not get the rule gap right.
Inline changes to the size of type in
FOOTER_RECTO and FOOTER_VERSOshould always be negative (smaller) than the default.
	
Pagination
By default, 
mom paginates documents.  Page numbers
appear in the bottom margin of the page, centered between two hyphens.
As with all elements of 
mom's document processing,
most aspects of pagination style can be altered to suit your taste
with control macros.
	
Pagination macros list
	
#PAGINATEPAGINATE  -- pagination on or off
	
#PAGENUMBERPAGENUMBER  -- user-defined (starting) page number
	
#PAGENUM_STYLEPAGENUM_STYLE  -- digits, roman numerals, etc
	
#PAGENUM_ON_FIRST_PAGEPAGENUM_ON_FIRST_PAGE  -- applies only when footers are enabled
	
#DRAFT_WITH_PAGENUMBERDRAFT_WITH_PAGENUMBER  -- attach draft/revision information to page numbers
	
#PAGINATE_CONTROLControl macros Macro: 
PAGINATE toggleAlias: 
PAGINATIONBy default, 
mom paginates documents (in the bottom
margin).  If you'd prefer she not paginate, turn pagination off
by invoking 
PAGINATE with any argument (OFF,
NO, QUIT, END, X...
), e.g.
	.PAGINATE NO 
To (re)start pagination, invoke 
PAGINATEwithout any argument.
Macro: 
PAGENUMBER <number>As is to be expected, pagination of documents begins at page 1.
If you'd prefer that 
mom begin with a different
number on the first page of a document, invoke
PAGENUMBER with the number you want.
PAGENUMBER need not be used only to give
mom a "first page" number.  It can be used at
any time to tell 
mom what number you want a
page to have.  Subsequent page numbers will, of course, be
incremented by 1 from that number.
Macro: 
PAGENUM_STYLE DIGIT | ROMAN | roman | ALPHA | alphaPAGENUM_STYLE lets you tell
mom what kind of page numbering you want.
DIGIT = arabic digits (1, 2, 3...)
ROMAN = upper case roman numerals (I, II, III...)
roman = lower case roman numerals (i, ii, iii...)
ALPHA = upper case letters (A, B, C...)
alpha = lower case letters (a, b, c...) Macro: 
PAGENUM_ON_FIRST_PAGE toggleThis macro applies only if you've enabled
#FOOTERSFOOTERS .
If 
FOOTERS are on, mom automatically
places page numbers at the tops of pages except on
the first page of a document (or on first pages after
rectoverso.html#COLLATECOLLATE ).  If you'd
like the page number to appear on "first" pages when
footers are on, invoke 
PAGENUM_ON_FIRST_PAGE with
no argument.  Any other argument turns the feature off (
OFF,
QUIT, END, X...
).
As with most of the 
definitions.html#TERMS_CONTROLMACROcontrol macros ,
PAGENUM_ON_FIRST_PAGE can be invoked at any time,
meaning that if you don't want a page number on the very first
page of a document, but do want one on pages that appear after
COLLATE, omit it before the first
docprocessing.html#STARTSTART of the document, then invoke it either just before or after your
first 
COLLATE.
Macro: 
DRAFT_WITH_PAGENUMBERSometimes, in
docprocessing.html#COPYSTYLECOPYSTYLE DRAFT ,
the center part of page headers gets overcrowded because of the draft
and revision information that go there by default.
DRAFT_WITH_PAGENUMBER is one way to 
fix the problem.
Invoked without an argument, 
DRAFT_WITH_PAGENUMBERremoves draft/revision information from the page headers and attaches
it instead to the document's page numbering, in the form
    Draft #, Rev. # / <pagenumber>
See the note in
docprocessing.html#COPYSTYLECOPYSTYLE DRAFT for other ways of dealing with crowded page headers when formatting
draft-style copy.
Pagination control macros
	
#PAGINATE_GENERALFamily/font/size 	
#PAGENUM_POSPage number position (vertical and horizontal) 	
#PAGENUM_HYPHENSEnclose page numbers with hyphens (on or off) 1. Page number family/font/size
See
#CONTROL_MACRO_ARGSArguments to the control macros .
.PAGENUM_FAMILY default = prevailing document family; default is Times Roman
.PAGENUM_FONT   default = roman
.PAGENUM_SIZE   default = 0 (i.e. same size as paragraph text)
2. Page number position
Macro: 
PAGENUM_POS TOP | BOTTOM  LEFT | CENTER | RIGHTUse 
PAGENUM_POS to change the default position of
automatic page numbering.  
PAGENUM_POS requires
two arguments: a vertical position (TOP or BOTTOM) and a
horizontal position (LEFT or CENTER or RIGHT).
For example, if you turn both
definitions.html#TERMS_HEADERheaders and
definitions.html#TERMS_FOOTERfooters  
off (with 
.HEADERS OFF and .FOOTERS
OFF
mom to number your
pages at the top right position, enter
	.PAGENUM_POS TOP RIGHT
3. Enclose page numbers with hyphens (on or off)
By default, 
mom encloses page numbers between hyphens.
If you don't want this behaviour, invoke the macro
PAGENUM_HYPHENS with any argument (OFF, QUIT, END, X...),
like this:
	.PAGENUM_HYPHENS OFF
If, for some reason, you want to turn page number hyphens back
on, invoke the macro without an argument.
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