1"         F\(sc     comment (to end of line)
2#         S         optional delayed text tag string
3$         F\(sc     interpolate argument
4$0        R         section depth
5$0\(dg    M         invoked after section title printed
6$1        R         first section number
7$1\(dg    M         invoked before printing depth 1 section
8$2        R         second section number
9$2\(dg    M         invoked before printing depth 2 section
10$3        R         third section number
11$3\(dg    M         invoked before printing depth 3 section
12$4        R         fourth section number
13$4\(dg    M         invoked before printing depth 4 section
14$5        R         fifth section number
15$5\(dg    M         invoked before printing depth 5 section
16$6        R         sixth section number
17$6\(dg    M         invoked before printing depth 6 section
18$C\(dg    M         called at beginning of chapter
19$H\(dg    M         text header
20$R\(dd    R         relative vertical spacing in displays
21$c        R         current column number
22$c\(dd    M         print chapter title
23$d        R         delayed text number
24$f        R         footnote number
25$f\(dd    M         print footer
26$h\(dd    M         print header
27$i        R         paragraph base indent
28$l        R         column width
29$m        R         number of columns in effect
30$n        S         section name
31$p        R         numbered paragraph number
32$p\(dd    M         print section heading (internal macro)
33$r\(dd    R         relative vertical spacing in text
34$s        R         column indent
35$s\(dd    M         footnote separator (from text)
36%         R\(sc     current page number
37&         F\(sc     zero width character, useful for hiding controls
38(         F\(sc     interpolate special character
39(b        M         begin block
40(c        M         begin centered block
41(d        M         begin delayed text
42(f        M         begin footnote
43(l        M         begin list
44(q        M         begin quote
45(space)   F\(sc     unpaddable space
46(x        M         begin index entry
47(z        M         begin floating keep
48)b        M         end block
49)c        M         end centered block
50)d        M         end delayed text
51)f        M         end footnote
52)l        M         end list
53)q        M         end quote
54)x        M         end index entry
55)z        M         end floating keep
56*         F\(sc     interpolate string
57*         S         optional footnote tag string
58++        M         set paper section type
59+c        M         begin chapter
60,         S         cedilla
61-         F\(sc     minus sign
62-         S         3/4 em dash
630         F\(sc     unpaddable digit-width space
641c        M         revert to single columned output
652c        M         begin two columned output
66:         S         umlat
67<         S         begin subscript
68>         S         end subscript
69EN        M         end equation
70EQ        M         begin equation
71L         F\(sc     vertical line drawing function
72TE        M         end table
73TH        M         end header of table
74TS        M         begin table
75[         S         begin superscript
76\&.$      R\(sc     number of arguments to macro
77\&.i      R\(sc     current indent
78\&.l      R\(sc     current line length
79\&.s      R\(sc     current point size
80\&\'      S         acute accent
81\&\`      S         grave accent
82\'        F\(sc     acute accent
83\`        F\(sc     grave accent
84]         S         end superscript
85^         F\(sc     1/12 em narrow space
86^         S         caret
87ac        M         ACM mode
88ad        M\(sc     set text adjustment
89af        M\(sc     assign format to register
90am        M\(sc     append to macro
91ar        M         set page numbers in arabic
92as        M\(sc     append to string
93b         M         bold font
94ba        M         set base indent
95bc        M         begin new column
96bi        M         bold italic
97bi        R         display (block) indent
98bl        M         blank lines (even at top of page)
99bm        R         bottom title margin
100bp        M\(sc     begin page
101br        M\(sc     break (start new line)
102bs        R         display (block) pre/post spacing
103bt        R         block keep threshold
104bx        M         boxed
105c         F\(sc     continue input
106ce        M\(sc     center lines
107ch        R         current chapter number
108de        M\(sc     define macro
109df        R         display font
110ds        M\(sc     define string
111dw        R\(sc     current day of week
112dw        S         current day of week
113dy        R\(sc     day of month
114e         F\(sc     printable version of \e
115ef        M         set footer (even numbered pages only)
116eh        M         set header (even numbered pages only)
117el        M\(sc     else part of conditional
118ep        M         end page
119es        R         equation pre/post space
120f         F\(sc     inline font change
121fc        M\(sc     set field characters
122ff        R         footnote font
123fi        M\(sc     fill output lines
124fi        R         footnote indent (first line only)
125fm        R         footer margin
126fo        M         set footer
127fp        R         footnote pointsize
128fs        R         footnote prespace
129fu        R         footnote undent (from right margin)
130h         F\(sc     local horizontal motion
131hc        M\(sc     set hyphenation character
132he        M         set header
133hl        M         draw horizontal line
134hm        R         header margin
135hx        M         suppress headers and footers on next page
136hy        M\(sc     set hyphenation mode
137i         M         italic font
138ie        M\(sc     conditional with else
139if        M\(sc     conditional
140ii        R         indented paragraph indent
141in        M\(sc     indent (transient, use .ba for pervasive)
142ip        M         begin indented paragraph
143ix        M         indent, no break
144l         F\(sc     horizontal line drawing function
145lc        M\(sc     set leader repetition character
146ll        M         set line length
147lo        M         load local macros
148lp        M         begin left justified paragraph
149lq        S         left quote marks
150ls        M\(sc     set multi-line spacing
151m1        M         set space from top of page to header
152m2        M         set space from header to text
153m3        M         set space from text to footer
154m4        M         set space from footer to bottom of page
155mc        M\(sc     insert margin character
156mk        M\(sc     mark vertical position
157mo        R\(sc     month of year
158mo        S         current month
159n         F\(sc     interpolate number register
160n1        M         number lines in margin
161n2        M         number lines in margin
162na        M\(sc     turn off text adjustment
163ne        M\(sc     need vertical space
164nf        M\(sc     don't fill output lines
165nh        M\(sc     turn off hyphenation
166np        M         begin numbered paragraph
167nr        M\(sc     set number register
168ns        M\(sc     no space mode
169o         S         circle (e.g., for Norse A)
170of        M         set footer (odd numbered pages only)
171oh        M         set header (odd numbered pages only)
172pa        M         begin page
173pd        M         print delayed text
174pf        R         paragraph font
175pi        R         paragraph indent
176pl        M\(sc     set page length
177pn        M\(sc     set next page number
178po        M\(sc     page offset
179po        R         simulated page offset
180pp        M         begin paragraph
181pp        R         paragraph pointsize
182ps        R         paragraph prespace
183q         M         quoted
184qa        S         for all
185qe        S         there exists
186qi        R         quote indent (also shortens line)
187qp        R         quote pointsize
188qs        R         quote pre/post space
189r         M         roman font
190rb        M         real bold font
191re        M         reset tabs
192rm        M\(sc     remove macro or string
193rn        M\(sc     rename macro or string
194ro        M         set page numbers in roman
195rq        S         right quote marks
196rr        M\(sc     remove register
197rs        M\(sc     restore spacing
198rt        M\(sc     return to vertical position
199s         F\(sc     inline size change
200sc        M         load special characters
201sf        R         section title font
202sh        M         begin numbered section
203si        R         relative base indent per section depth
204sk        M         skip next page
205so        M\(sc     source input file
206so        R         additional section title offset
207sp        M\(sc     vertical space
208sp        R         section title pointsize
209ss        R         section prespace
210sx        M         change section depth
211sz        M         set pointsize and vertical spacing
212ta        M\(sc     set tab stops
213tc        M\(sc     set tab repetition character
214td        S         today's date
215tf        R         title font
216th        M         set thesis mode
217ti        M\(sc     temporary indent (next line only)
218tl        M\(sc     three part title
219tm        R         top title margin
220tp        M         begin title page
221tp        R         title pointsize
222tr        M\(sc     translate
223u         M         underlined
224uh        M         unnumbered section
225ul        M\(sc     underline next line
226v         F\(sc     local vertical motion
227v         S         czeck ``e''
228w         F\(sc     return width of string
229xl        M         set line length (local)
230xp        M         print index
231xs        R         index entry prespace
232xu        R         index undent (from right margin)
233yr        R\(sc     year (last two digits only)
234zs        R         floating keep pre/post space
235{         F\(sc     begin conditional group
236|         F\(sc     1/6 em narrow space
237}         F\(sc     end conditional group
238~         S         tilde
239