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#
# This file contains the definitions for the built-in
# macros used by troff
#
# The format of the file is
# macro <argument-list>
#
# Arguments are:
# | Vertical bar
# s String
# n Numeric expression
# c Single character
# f Font specification
# t Three-part title
#
# If followed by a * they can be repeated 0 or more
# times
#
# Anything past a # is considered a comment
br # Break
ad s # Adjust margins
na # No adjust
nf # No fill
fi # Fill
nh # No hyphen
hy n # Set hyphenation mode
hw s* # Specify how to hyphenate words
hc c # Hyphenation character
ce n # Center lines
ul n # Underline
cu n # Continuous underline
uf f # Select font for underline
po | n # Page offset
ll n # Line length
in | n # Indent
ti | n # Temporary indent
pl | n # Page length
bp n # Begin page
pn n # Page number
ne n # Specify need space
mk s # Mark current location
sp | n # Vertical space
ps n # Point size
vs | n # Vertical space
ls n # Line spacing
sv n # Save space
os # Output saved space
ns # Set no-space mode
rs # Set restore-space mode
ss n # Set character space size
cs s n n # Constant space mode
ft f # Specify font
fp f n # Set font position
fz f n # Font size request
bd f n # Specify how to bold a font
lg n # Select ligatures
ta n* # Specify tabs
tc c # Tab character
lc c # Leader character
fc c s # Field character
lt | n # Title length
pc c # Page character
tl t # Title
so s # Source another file
nx s # Change to another file
pi s # Pipe output to a program
rd s # Read data from keyboard
ex s # Exit
tm s* # Send message to standard output
ds s s # Define string
as s s # Append string
de s s # Define macro
. # End of macro
rm s # Remove macro
rn s s # Rename macro
am s s # Append to macro
di s # Divert to macro
da s # Append to diversion
wh n s # Set place to execute macro
ch s n # Change place macro executes
dt n s # Set diversion trap
it n s # Set input trap
em s # Set macro for end of input
nr s n n # Define number register
af s c # Assign format
rr s # Remove register
mc c # Margin character
ec c # Set escape character
eo # Turn off escape
cc c # Set control character
c2 # Set second control character
tr s # Translate characters
nm n n n n # Line number
nn n # No numbering
ig s # Ignore input
pm s # Print macros
fl # Flush output
ab s # Abort
ev n # Set environment
\" s* # Comment
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