.MH "Summary of Commands Grouped by Function"
.#
.BT 35 "Filling and Margin Adjustment"
?RQ  ".ad c"  both  both  no
Set margin adjustment mode.
?RQ  ".br"  -  -  yes
Force a break.
?RQ  ".ce N"  N=0  N=1  yes
Center N input text lines.
?RQ  ".fi"  on  -  no
Turn on fill mode.
?RQ  ".hy"  on  -  no
Turn on automatic hyphenation.
?RQ  ".na"  -  -  no
Turn off margin adjustment.
?RQ  ".nf"  -  -  yes
Turn off fill mode. (Also inhibits adjustment.)
?RQ  ".nh"  -  -  no
Turn off automatic hyphenation.
?RQ  ".sb"  "off"  -  no
Single blank after end of sentence.
?RQ  ".xb"  on  -  no
Extra blank after end of sentence.
?ET
.#
.BT 22 "Spacing and Page Control"
?RQ  ".bp  [cu +]N"  N=1  next  yes
Begin a new page.
?RQ  ".ls N"  N=1  N=1  no
Set line spacing.
?RQ  ".ne N"  -  N=1  yes
Express a need for N contiguous lines.
?RQ  ".ns"  on  -  no
Turn on 'no-space' mode.
?RQ  ".pl [cu +]N"  N=66  N=66  no
Set page length.
?RQ  ".pn [cu +]N"  N=1  ignored  no
Set page number.
?RQ  ".rs"  -  -  no
Turn off 'no-space' mode.
?RQ  ".sp N"  -  N=1  yes
Put out N blank lines.
?ET
.#
.BT 34 "Margins and Indentation"
?RQ  ".in [cu +]N"  N=0  N=0  yes
Indent left margin.
?RQ  ".lm [cu +]N"  N=1  N=1  yes
Set left margin.
?RQ  ".m1 [cu +]N"  N=3  N=3  no
Set top margin before and including page heading.
?RQ  ".m2 [cu +]N"  N=2  N=2  no
Set top margin after page heading.
?RQ  ".m3 [cu +]N"  N=2  N=2  no
Set bottom margin before page footing.
?RQ  ".m4 [cu +]N"  N=3  N=3  no
Set bottom margin including and after page footing.
?RQ  ".mc <char>"  BLANK  BLANK  no
Set margin character.
?RQ  ".mo [cu +]N"  N=0  N=0  no
Set margin offset.
?RQ  ".po [cu +]N"  N=0  N=0  yes
Set page offset.
?RQ  ".rm [cu +]N"  N=60 N=60 yes
Set right margin.
?RQ  ".ti [cu +]N"  N=0  N=0  yes
Temporarily indent left margin.
?ET
.#
.BT 24 "Headings, Footings and Titles"
?RQ  ".ef /l/c/r/" blank blank no
Set even-numbered page footing.
?RQ  ".eh /l/c/r/" blank blank no
Set even-numbered page heading.
?RQ  ".fo /l/c/r/" blank blank no
Set running page footing.
?RQ  ".he /l/c/r/" blank blank no
Set running page heading.
?RQ  ".lt [cu +]N"  N=60  N=60  no
Set length of header, footer and titles.
?RQ  ".of /l/c/r/" blank blank no
Set odd-numbered page footing.
?RQ  ".oh /l/c/r/" blank blank no
Set odd-numbered page heading.
?RQ  ".tl 'l'c'r'" blank blank yes
Generate a three part title.
?ET
.#
.BT 13 "Tabulation"
?RQ  ".ta N ..."  "9 17 ..."  all  no
Set tab stops.
?RQ  ".tc c"  TAB  TAB  no
Set tab character.
?RQ  ".rc c"  BLANK  BLANK  no
Set tab replacement character.
?ET
.#
.BT 26 "Miscellaneous Commands"
?RQ  ".#"  -  -  no
Introduce a comment.
?RQ  ".bf N"  N=0  N=1  no
Boldface N input text lines.
?RQ  ".c2 c"  `  `  no
Set no-break control character.
?RQ  ".cc c"  .  .  no
Set basic control character.
?RQ  ".er text"  -  ignored  no
Write a message to the terminal.
?RQ  ".ex"  -  -  yes
Exit immediately to the Subsystem.
?RQ  ".ul N"  N=0  N=1  no
Underline N input text lines.
?ET
.#
.BT 12 "Input Processing"
?RQ  ".nx file" - "next arg" no
Move on to the next input file.
?RQ  ".so file" - ignored no
Temporarily alter the input source.
?ET
.#
.BT 11 "Macros"
?RQ  ".de xx"  -  ignored  no
Begin definition or redefinition of a macro.
?RQ  ".en xx"  -  ignored  no
End macro definition.
?ET