#
# 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