1 This is groff, produced by makeinfo version 4.2 from ./groff.texinfo.
3 This manual documents GNU `troff' version 1.18.
5 Copyright (C) 1994-2000, 2001, 2002 Free Software Foundation, Inc.
7 Permission is granted to copy, distribute and/or modify this
8 document under the terms of the GNU Free Documentation License,
9 Version 1.1 or any later version published by the Free Software
10 Foundation; with no Invariant Sections, with the Front-Cover texts
11 being `A GNU Manual," and with the Back-Cover Texts as in (a)
12 below. A copy of the license is included in the section entitled
13 `GNU Free Documentation License."
15 (a) The FSF's Back-Cover Text is: `You have freedom to copy and
16 modify this GNU Manual, like GNU software. Copies published by
17 the Free Software Foundation raise funds for GNU development."
19 INFO-DIR-SECTION Miscellaneous
21 * Groff: (groff). The GNU troff document formatting system.
25 File: groff, Node: Concept Index, Prev: Program and File Index, Up: Top
32 * ", at end of sentence <1>: Using Symbols.
33 * ", at end of sentence: Sentences.
34 * ", in a macro argument: Request Arguments.
35 * %, as delimiter: Escapes.
36 * &, as delimiter: Escapes.
37 * ', as a comment: Comments.
38 * ', at end of sentence <1>: Using Symbols.
39 * ', at end of sentence: Sentences.
40 * ', delimiting arguments: Escapes.
41 * (, as delimiter: Escapes.
42 * (, starting a two-character identifier <1>: Escapes.
43 * (, starting a two-character identifier: Identifiers.
44 * ), as delimiter: Escapes.
45 * ), at end of sentence <1>: Using Symbols.
46 * ), at end of sentence: Sentences.
47 * *, as delimiter: Escapes.
48 * *, at end of sentence <1>: Using Symbols.
49 * *, at end of sentence: Sentences.
50 * +, and page motion: Expressions.
51 * +, as delimiter: Escapes.
52 * -, and page motion: Expressions.
53 * -, as delimiter: Escapes.
54 * ., as delimiter: Escapes.
55 * .h register, difference to nl: Diversions.
56 * .ps register, in comparison with .psr: Fractional Type Sizes.
57 * .s register, in comparison with .sr: Fractional Type Sizes.
58 * .S register, Plan 9 alias for .tabs: Tabs and Fields.
59 * .t register, and diversions: Diversion Traps.
60 * .tabs register, Plan 9 alias (.S): Tabs and Fields.
61 * .V register, and vs: Changing Type Sizes.
62 * /, as delimiter: Escapes.
63 * 8-bit input: Font File Format.
64 * <, as delimiter: Escapes.
65 * <colon>, as delimiter: Escapes.
66 * =, as delimiter: Escapes.
67 * >, as delimiter: Escapes.
68 * [, macro names starting with, and refer: Identifiers.
69 * [, starting an identifier <1>: Escapes.
70 * [, starting an identifier: Identifiers.
71 * \!, and output: Diversions.
72 * \!, and trnt: Character Translations.
73 * \!, in top-level diversion: Diversions.
74 * \!, incompatibilities with AT&T troff: Implementation Differences.
75 * \!, used as delimiter: Escapes.
76 * \$, when reading text for a macro: Copy-in Mode.
77 * \%, and translations: Character Translations.
78 * \%, following \X or \Y: Manipulating Hyphenation.
79 * \%, in \X: Postprocessor Access.
80 * \%, incompatibilities with AT&T troff: Implementation Differences.
81 * \%, used as delimiter: Escapes.
82 * \&, and glyph definitions: Using Symbols.
83 * \&, and translations: Character Translations.
84 * \&, at end of sentence: Sentences.
85 * \&, escaping control characters: Requests.
86 * \&, in \X: Postprocessor Access.
87 * \&, incompatibilities with AT&T troff: Implementation Differences.
88 * \&, used as delimiter: Escapes.
89 * \', and translations: Character Translations.
90 * \', incompatibilities with AT&T troff: Implementation Differences.
91 * \', used as delimiter: Escapes.
92 * \(, and translations: Character Translations.
93 * \), in \X: Postprocessor Access.
94 * \), used as delimiter: Escapes.
95 * \*, and warnings: Warnings.
96 * \*, incompatibilities with AT&T troff: Implementation Differences.
97 * \*, when reading text for a macro: Copy-in Mode.
98 * \, disabling (eo): Character Translations.
99 * \,, used as delimiter: Escapes.
100 * \-, and translations: Character Translations.
101 * \-, incompatibilities with AT&T troff: Implementation Differences.
102 * \-, used as delimiter: Escapes.
103 * \/, used as delimiter: Escapes.
104 * \0, used as delimiter: Escapes.
105 * \<colon>, in \X: Postprocessor Access.
106 * \<colon>, used as delimiter: Escapes.
107 * \<RET>, when reading text for a macro: Copy-in Mode.
108 * \<SP>, difference to \~: Request Arguments.
109 * \<SP>, incompatibilities with AT&T troff: Implementation Differences.
110 * \<SP>, used as delimiter: Escapes.
111 * \?, in top-level diversion: Diversions.
112 * \?, incompatibilities with AT&T troff: Implementation Differences.
113 * \?, used as delimiter: Escapes.
114 * \@, used as delimiter: Escapes.
115 * \[, and translations: Character Translations.
116 * \\, when reading text for a macro: Copy-in Mode.
117 * \^, incompatibilities with AT&T troff: Implementation Differences.
118 * \^, used as delimiter: Escapes.
119 * \_, and translations: Character Translations.
120 * \_, incompatibilities with AT&T troff: Implementation Differences.
121 * \_, used as delimiter: Escapes.
122 * \`, and translations: Character Translations.
123 * \`, incompatibilities with AT&T troff: Implementation Differences.
124 * \`, used as delimiter: Escapes.
125 * \A, allowed delimiters: Escapes.
126 * \a, and translations: Character Translations.
127 * \A, incompatibilities with AT&T troff: Implementation Differences.
128 * \a, used as delimiter: Escapes.
129 * \B, allowed delimiters: Escapes.
130 * \b, limitations: Drawing Requests.
131 * \b, possible quote characters: Escapes.
132 * \C, allowed delimiters: Escapes.
133 * \c, and fill mode: Line Control.
134 * \c, and no-fill mode: Line Control.
135 * \C, and translations: Character Translations.
136 * \c, incompatibilities with AT&T troff: Implementation Differences.
137 * \c, used as delimiter: Escapes.
138 * \D, allowed delimiters: Escapes.
139 * \d, used as delimiter: Escapes.
140 * \e, and glyph definitions: Using Symbols.
141 * \e, and translations: Character Translations.
142 * \e, incompatibilities with AT&T troff: Implementation Differences.
143 * \e, used as delimiter: Escapes.
144 * \E, used as delimiter: Escapes.
145 * \e, used as delimiter: Escapes.
146 * \F, and changing fonts: Changing Fonts.
147 * \F, and font positions: Font Positions.
148 * \f, and font translations: Changing Fonts.
149 * \f, incompatibilities with AT&T troff: Implementation Differences.
150 * \H, allowed delimiters: Escapes.
151 * \h, allowed delimiters: Escapes.
152 * \H, incompatibilities with AT&T troff: Implementation Differences.
153 * \H, using + and -: Expressions.
154 * \H, with fractional type sizes: Fractional Type Sizes.
155 * \L, allowed delimiters: Escapes.
156 * \l, allowed delimiters: Escapes.
157 * \L, and glyph definitions: Using Symbols.
158 * \l, and glyph definitions: Using Symbols.
159 * \N, allowed delimiters: Escapes.
160 * \N, and translations: Character Translations.
161 * \n, and warnings: Warnings.
162 * \n, incompatibilities with AT&T troff: Implementation Differences.
163 * \n, when reading text for a macro: Copy-in Mode.
164 * \o, possible quote characters: Escapes.
165 * \p, used as delimiter: Escapes.
166 * \R, after \c: Line Control.
167 * \R, allowed delimiters: Escapes.
168 * \R, and warnings: Warnings.
169 * \R, difference to nr: Auto-increment.
170 * \r, used as delimiter: Escapes.
171 * \R, using + and -: Expressions.
172 * \S, allowed delimiters: Escapes.
173 * \s, allowed delimiters: Escapes.
174 * \S, incompatibilities with AT&T troff: Implementation Differences.
175 * \s, incompatibilities with AT&T troff: Implementation Differences.
176 * \s, using + and -: Expressions.
177 * \s, with fractional type sizes: Fractional Type Sizes.
178 * \t, and translations: Character Translations.
179 * \t, and warnings: Warnings.
180 * \t, used as delimiter: Escapes.
181 * \u, used as delimiter: Escapes.
182 * \v, allowed delimiters: Escapes.
183 * \v, internal representation: Gtroff Internals.
184 * \w, allowed delimiters: Escapes.
185 * \x, allowed delimiters: Escapes.
186 * \X, and special characters: Postprocessor Access.
187 * \X, followed by \%: Manipulating Hyphenation.
188 * \X, possible quote characters: Escapes.
189 * \Y, followed by \%: Manipulating Hyphenation.
190 * \Z, allowed delimiters: Escapes.
191 * \{, incompatibilities with AT&T troff: Implementation Differences.
192 * \{, used as delimiter: Escapes.
193 * \|, incompatibilities with AT&T troff: Implementation Differences.
194 * \|, used as delimiter: Escapes.
195 * \}, and warnings: Warnings.
196 * \}, incompatibilities with AT&T troff: Implementation Differences.
197 * \}, used as delimiter: Escapes.
198 * \~, and translations: Character Translations.
199 * \~, difference to \<SP>: Request Arguments.
200 * \~, used as delimiter: Escapes.
201 * ], as part of an identifier: Identifiers.
202 * ], at end of sentence <1>: Using Symbols.
203 * ], at end of sentence: Sentences.
204 * ], ending an identifier <1>: Escapes.
205 * ], ending an identifier: Identifiers.
206 * ], macro names starting with, and refer: Identifiers.
207 * aborting (ab): Debugging.
208 * absolute position operator (|): Expressions.
209 * accent marks [ms]: ms Strings and Special Characters.
210 * access of postprocessor: Postprocessor Access.
211 * accessing unnamed glyphs with \N: Font File Format.
212 * activating kerning (kern): Ligatures and Kerning.
213 * activating ligatures (lg): Ligatures and Kerning.
214 * activating track kerning (tkf): Ligatures and Kerning.
215 * ad request, and hyphenation margin: Manipulating Hyphenation.
216 * ad request, and hyphenation space: Manipulating Hyphenation.
217 * adjusting: Filling and Adjusting.
218 * adjusting and filling, manipulating: Manipulating Filling and Adjusting.
219 * adjustment mode register (.j): Manipulating Filling and Adjusting.
220 * alias, diversion, creating (als): Strings.
221 * alias, macro, creating (als): Strings.
222 * alias, number register, creating (aln): Setting Registers.
223 * alias, string, creating (als): Strings.
224 * als request, and \$0: Parameters.
225 * am, am1, ami requests, and warnings: Warnings.
226 * annotations: Footnotes and Annotations.
227 * appending to a diversion (da): Diversions.
228 * appending to a file (opena): I/O.
229 * appending to a macro (am): Writing Macros.
230 * appending to a string (as): Strings.
231 * arc, drawing (\D'a ...'): Drawing Requests.
232 * argument delimiting characters: Escapes.
233 * arguments to requests: Request Arguments.
234 * arguments, macro (\$): Parameters.
235 * arguments, of strings: Strings.
236 * arithmetic operators: Expressions.
237 * artificial fonts: Artificial Fonts.
238 * as, as1 requests, and comments: Comments.
239 * as, as1 requests, and warnings: Warnings.
240 * ASCII approximation output register (.A) <1>: Built-in Registers.
241 * ASCII approximation output register (.A): Groff Options.
242 * ASCII, encoding: Groff Options.
243 * asciify request, and writem: I/O.
244 * assigning formats (af): Assigning Formats.
245 * assignments, indirect: Interpolating Registers.
246 * assignments, nested: Interpolating Registers.
247 * AT&T troff, ms macro package differences: Differences from AT&T ms.
248 * auto-increment: Auto-increment.
249 * available glyphs, list (`groff_char(7)' man page): Using Symbols.
250 * backslash, printing (\\, \e, \E, \[rs]) <1>: Implementation Differences.
251 * backslash, printing (\\, \e, \E, \[rs]): Escapes.
252 * backspace character: Identifiers.
253 * backspace character, and translations: Character Translations.
254 * backtrace of input stack (backtrace): Debugging.
256 * basic unit (u): Measurements.
257 * basics of macros: Basics.
258 * bd request, and font styles: Font Families.
259 * bd request, and font translations: Changing Fonts.
260 * bd request, incompatibilities with AT&T troff: Implementation Differences.
261 * begin of conditional block (\{): if-else.
262 * beginning diversion (di): Diversions.
263 * blank line <1>: Requests.
264 * blank line: Implicit Line Breaks.
265 * blank line (sp): Basics.
266 * blank line macro (blm) <1>: Blank Line Traps.
267 * blank line macro (blm) <2>: Requests.
268 * blank line macro (blm): Implicit Line Breaks.
269 * blank line traps: Blank Line Traps.
270 * blank lines, disabling: Manipulating Spacing.
271 * block, conditional, begin (\{): if-else.
272 * block, condititional, end (\}): if-else.
273 * bold face [man]: Man font macros.
274 * bold face, imitating (bd): Artificial Fonts.
275 * bottom margin: Page Layout.
276 * bounding box: Miscellaneous.
277 * box rule glyph (\[br]): Drawing Requests.
278 * box, boxa requests, and warnings: Warnings.
279 * bp request, and top-level diversion: Page Control.
280 * bp request, causing implicit linebreak: Manipulating Filling and Adjusting.
281 * bp request, using + and -: Expressions.
282 * br glyph, and cflags: Using Symbols.
283 * break <1>: Manipulating Filling and Adjusting.
285 * break (br): Basics.
286 * break request, in a while loop: while.
287 * break, implicit: Implicit Line Breaks.
288 * built-in registers: Built-in Registers.
289 * bulleted list, example markup [ms]: Lists in ms.
290 * c unit: Measurements.
291 * calling convention of preprocessors: Preprocessors in man pages.
292 * capabilities of groff: groff Capabilities.
293 * ce request, causing implicit linebreak: Manipulating Filling and Adjusting.
294 * ce request, difference to .ad c: Manipulating Filling and Adjusting.
295 * centered text: Manipulating Filling and Adjusting.
296 * centering lines (ce) <1>: Manipulating Filling and Adjusting.
297 * centering lines (ce): Basics.
298 * centimeter unit (c): Measurements.
299 * cf request, causing implicit linebreak: Manipulating Filling and Adjusting.
300 * changing font family (fam, \F): Font Families.
301 * changing font position (\f): Font Positions.
302 * changing font style (sty): Font Families.
303 * changing fonts (ft, \f): Changing Fonts.
304 * changing format, and read-only registers: Assigning Formats.
305 * changing the font height (\H): Artificial Fonts.
306 * changing the font slant (\S): Artificial Fonts.
307 * changing the page number character (pc): Page Layout.
308 * changing trap location (ch): Page Location Traps.
309 * changing type sizes (ps, \s): Changing Type Sizes.
310 * changing vertical line spacing (vs): Changing Type Sizes.
311 * char request, and soft hyphen character: Manipulating Hyphenation.
312 * char request, and translations: Character Translations.
313 * char request, used with \N: Using Symbols.
314 * character: Using Symbols.
315 * character properties (cflags): Using Symbols.
316 * character translations: Character Translations.
317 * character, backspace: Identifiers.
318 * character, backspace, and translations: Character Translations.
319 * character, control (.): Requests.
320 * character, control, changing (cc): Character Translations.
321 * character, defining (char): Using Symbols.
322 * character, escape, changing (ec): Character Translations.
323 * character, escape, while defining glyph: Using Symbols.
324 * character, field delimiting (fc): Fields.
325 * character, field padding (fc): Fields.
326 * character, hyphenation (\%): Manipulating Hyphenation.
327 * character, leader repetition (lc): Leaders.
328 * character, leader, and translations: Character Translations.
329 * character, leader, non-interpreted (\a): Leaders.
330 * character, named (\C): Using Symbols.
331 * character, newline: Escapes.
332 * character, newline, and translations: Character Translations.
333 * character, no-break control ('): Requests.
334 * character, no-break control, changing (c2): Character Translations.
335 * character, soft hyphen, setting (shc): Manipulating Hyphenation.
336 * character, space: Escapes.
337 * character, special: Character Translations.
338 * character, tab: Escapes.
339 * character, tab repetition (tc): Tabs and Fields.
340 * character, tab, and translations: Character Translations.
341 * character, tab, non-interpreted (\t): Tabs and Fields.
342 * character, tabulator: Tab Stops.
343 * character, transparent <1>: Using Symbols.
344 * character, transparent: Sentences.
345 * character, whitespace: Identifiers.
346 * character, zero width space (\&) <1>: Drawing Requests.
347 * character, zero width space (\&) <2>: Ligatures and Kerning.
348 * character, zero width space (\&): Requests.
349 * characters, argument delimiting: Escapes.
350 * characters, end-of-sentence: Using Symbols.
351 * characters, hyphenation: Using Symbols.
352 * characters, input, and output glyphs, compatibility with AT&T troff: Implementation Differences.
353 * characters, invalid for trf request: I/O.
354 * characters, invalid input: Identifiers.
355 * characters, overlapping: Using Symbols.
356 * characters, special: Special Characters.
357 * characters, unnamed, accessing with \N: Font File Format.
358 * circle, drawing (\D'c ...'): Drawing Requests.
359 * circle, solid, drawing (\D'C ...'): Drawing Requests.
360 * closing file (close): I/O.
361 * code, hyphenation (hcode): Manipulating Hyphenation.
362 * color, default: Colors.
364 * command prefix: Environment.
365 * command-line options: Groff Options.
366 * commands, embedded: Embedded Commands.
367 * comments: Comments.
368 * comments in font files: Font File Format.
369 * comments, lining up with tabs: Comments.
370 * comments, with ds: Strings.
371 * common features: Common Features.
372 * common name space of macros, diversions, and strings: Strings.
373 * comparison operators: Expressions.
374 * compatibility mode <1>: Implementation Differences.
375 * compatibility mode: Warnings.
376 * conditional block, begin (\{): if-else.
377 * conditional block, end (\}): if-else.
378 * conditional page break (ne): Page Control.
379 * conditionals and loops: Conditionals and Loops.
380 * consecutive hyphenated lines (hlm): Manipulating Hyphenation.
381 * constant glyph space mode (cs): Artificial Fonts.
382 * contents, table of <1>: Leaders.
383 * contents, table of: Table of Contents.
384 * continuation, input line (\): Line Control.
385 * continuation, output line (\c): Line Control.
386 * continue request, in a while loop: while.
387 * continuous underlining (cu): Artificial Fonts.
388 * control character (.): Requests.
389 * control character, changing (cc): Character Translations.
390 * control character, no-break ('): Requests.
391 * control character, no-break, changing (c2): Character Translations.
392 * control, line: Line Control.
393 * control, page: Page Control.
394 * conventions for input: Input Conventions.
395 * copy-in mode: Copy-in Mode.
396 * copy-in mode, and macro arguments: Parameters.
397 * copy-in mode, and write requests: I/O.
398 * copying environment (evc): Environments.
399 * correction between italic and roman glyph (\/, \,): Ligatures and Kerning.
400 * correction, italic (\/): Ligatures and Kerning.
401 * correction, left italic (\,): Ligatures and Kerning.
402 * cover page macros, [ms]: ms Cover Page Macros.
403 * cp request, and glyph definitions: Using Symbols.
404 * cp1047: Groff Options.
405 * creating alias, for diversion (als): Strings.
406 * creating alias, for macro (als): Strings.
407 * creating alias, for number register (aln): Setting Registers.
408 * creating alias, for string (als): Strings.
409 * creating new characters (char): Using Symbols.
411 * cs request, and font styles: Font Families.
412 * cs request, and font translations: Changing Fonts.
413 * cs request, incompatibilities with AT&T troff: Implementation Differences.
414 * cs request, with fractional type sizes: Fractional Type Sizes.
415 * current directory: Macro Directories.
416 * current input file name register (.F): Built-in Registers.
418 * current time, hours (hours): Built-in Registers.
419 * current time, minutes (minutes): Built-in Registers.
420 * current time, seconds (seconds): Built-in Registers.
421 * da request, and warnings: Warnings.
422 * date, day of the month register (dy): Built-in Registers.
423 * date, day of the week register (dw): Built-in Registers.
424 * date, month of the year register (mo): Built-in Registers.
425 * date, year register (year, yr): Built-in Registers.
426 * day of the month register (dy): Built-in Registers.
427 * day of the week register (dw): Built-in Registers.
428 * de request, and while: while.
429 * de, de1, dei requests, and warnings: Warnings.
430 * debugging: Debugging.
431 * default color: Colors.
432 * default indentation [man]: Miscellaneous man macros.
433 * default indentation, resetting [man]: Man usage.
434 * default units: Default Units.
435 * defining character (char): Using Symbols.
436 * defining glyph (char): Using Symbols.
437 * defining symbol (char): Using Symbols.
438 * delayed text: Footnotes and Annotations.
439 * delimited arguments, incompatibilities with AT&T troff: Implementation Differences.
440 * delimiting character, for fields (fc): Fields.
441 * delimiting characters for arguments: Escapes.
442 * DESC file, format: DESC File Format.
443 * devices for output <1>: Output Devices.
444 * devices for output: Output device intro.
445 * dg glyph, at end of sentence <1>: Using Symbols.
446 * dg glyph, at end of sentence: Sentences.
447 * di request, and warnings: Warnings.
448 * differences in implementation: Implementation Differences.
449 * digit width space (\0): Page Motions.
450 * digits, and delimiters: Escapes.
451 * dimensions, line: Line Layout.
452 * directories for fonts: Font Directories.
453 * directories for macros: Macro Directories.
454 * directory, current: Macro Directories.
455 * directory, for tmac files: Macro Directories.
456 * directory, home: Macro Directories.
457 * directory, platform-specific: Macro Directories.
458 * directory, site-specific <1>: Font Directories.
459 * directory, site-specific: Macro Directories.
460 * disabling \ (eo): Character Translations.
461 * disabling hyphenation (\%): Manipulating Hyphenation.
462 * displays: Displays.
463 * displays [ms]: ms Displays and Keeps.
464 * distance to next trap register (.t): Page Location Traps.
465 * ditroff, the program: History.
466 * diversion name register (.z): Diversions.
467 * diversion trap, setting (dt): Diversion Traps.
468 * diversion traps: Diversion Traps.
469 * diversion, appending (da): Diversions.
470 * diversion, beginning (di): Diversions.
471 * diversion, creating alias (als): Strings.
472 * diversion, ending (di): Diversions.
473 * diversion, nested: Diversions.
474 * diversion, removing (rm): Strings.
475 * diversion, renaming (rn): Strings.
476 * diversion, stripping final newline: Strings.
477 * diversion, top-level: Diversions.
478 * diversion, top-level, and \!: Diversions.
479 * diversion, top-level, and \?: Diversions.
480 * diversion, top-level, and bp: Page Control.
481 * diversion, unformatting (asciify): Diversions.
482 * diversion, vertical position in, register (.d): Diversions.
483 * diversions: Diversions.
484 * diversions, shared name space with macros and strings: Strings.
485 * documents, multi-file: Debugging.
486 * documents, structuring the source code: Requests.
487 * double quote, in a macro argument: Request Arguments.
488 * double-spacing (ls) <1>: Manipulating Spacing.
489 * double-spacing (ls): Basics.
490 * double-spacing (vs, pvs): Changing Type Sizes.
491 * drawing a circle (\D'c ...'): Drawing Requests.
492 * drawing a line (\D'l ...'): Drawing Requests.
493 * drawing a polygon (\D'p ...'): Drawing Requests.
494 * drawing a solid circle (\D'C ...'): Drawing Requests.
495 * drawing a solid ellipse (\D'E ...'): Drawing Requests.
496 * drawing a solid polygon (\D'P ...'): Drawing Requests.
497 * drawing a spline (\D'~ ...'): Drawing Requests.
498 * drawing an arc (\D'a ...'): Drawing Requests.
499 * drawing an ellipse (\D'e ...'): Drawing Requests.
500 * drawing horizontal lines (\l): Drawing Requests.
501 * drawing requests: Drawing Requests.
502 * drawing vertical lines (\L): Drawing Requests.
503 * ds request, and comments: Strings.
504 * ds request, and double quotes: Request Arguments.
505 * ds request, and leading spaces: Strings.
506 * ds, ds1 requests, and comments: Comments.
507 * ds, ds1 requests, and warnings: Warnings.
508 * dumping number registers (pnr): Debugging.
509 * dumping symbol table (pm): Debugging.
510 * dumping traps (ptr): Debugging.
511 * EBCDIC encoding <1>: Tab Stops.
512 * EBCDIC encoding: Groff Options.
513 * EBCDIC encoding of a tab: Tabs and Fields.
514 * EBCDIC encoding of backspace: Identifiers.
515 * el request, and warnings: Warnings.
516 * ellipse, drawing (\D'e ...'): Drawing Requests.
517 * ellipse, solid, drawing (\D'E ...'): Drawing Requests.
518 * em glyph, and cflags: Using Symbols.
519 * em unit (m): Measurements.
520 * embedded commands: Embedded Commands.
521 * embedding PostScript: Embedding PostScript.
522 * embolding of special fonts: Artificial Fonts.
523 * empty line: Implicit Line Breaks.
524 * empty line (sp): Basics.
525 * empty space before a paragraph [man]: Miscellaneous man macros.
526 * en unit (n): Measurements.
527 * enabling vertical position traps (vpt): Page Location Traps.
528 * encoding, ASCII: Groff Options.
529 * encoding, cp1047: Groff Options.
530 * encoding, EBCDIC <1>: Tab Stops.
531 * encoding, EBCDIC: Groff Options.
532 * encoding, latin-1: Groff Options.
533 * encoding, utf-8: Groff Options.
534 * end of conditional block (\}): if-else.
535 * end-of-input macro (em): End-of-input Traps.
536 * end-of-input trap, setting (em): End-of-input Traps.
537 * end-of-input traps: End-of-input Traps.
538 * end-of-sentence characters: Using Symbols.
539 * ending diversion (di): Diversions.
540 * environment number/name register (.ev): Environments.
541 * environment variables: Environment.
542 * environment, copying (evc): Environments.
543 * environment, last glyph: Environments.
544 * environment, switching (ev): Environments.
545 * environments: Environments.
546 * eqn, the program: geqn.
547 * equations [ms]: ms Insertions.
548 * escape character, changing (ec): Character Translations.
549 * escape character, while defining glyph: Using Symbols.
551 * escaping newline characters, in strings: Strings.
552 * ex request, use in debugging: Debugging.
553 * ex request, used with nx and rd: I/O.
554 * example markup, bulleted list [ms]: Lists in ms.
555 * example markup, glossary-style list [ms]: Lists in ms.
556 * example markup, multi-page table [ms]: Example multi-page table.
557 * example markup, numbered list [ms]: Lists in ms.
558 * example markup, title page: ms Cover Page Macros.
559 * examples of invocation: Invocation Examples.
560 * exiting (ex): Debugging.
561 * expansion of strings (\*): Strings.
562 * explicit hyphen (\%): Manipulating Hyphenation.
563 * expression, order of evaluation: Expressions.
564 * expressions: Expressions.
565 * expressions, and space characters: Expressions.
566 * extra post-vertical line space (\x): Changing Type Sizes.
567 * extra post-vertical line space register (.a): Manipulating Spacing.
568 * extra pre-vertical line space (\x): Changing Type Sizes.
569 * extra spaces: Filling and Adjusting.
570 * extremum operators (>?, <?): Expressions.
571 * f unit: Measurements.
572 * f unit, and colors: Colors.
573 * fam request, and changing fonts: Changing Fonts.
574 * fam request, and font positions: Font Positions.
575 * families, font: Font Families.
576 * FDL, GNU Free Documentation License: GNU Free Documentation License.
577 * features, common: Common Features.
578 * fi request, causing implicit linebreak: Manipulating Filling and Adjusting.
579 * field delimiting character (fc): Fields.
580 * field padding character (fc): Fields.
582 * fields, and tabs: Tabs and Fields.
583 * figures [ms]: ms Insertions.
584 * file formats: File formats.
585 * file, appending to (opena): I/O.
586 * file, closing (close): I/O.
587 * file, inclusion (so): I/O.
588 * file, opening (open): I/O.
589 * file, processing next (nx): I/O.
590 * file, writing to (write): I/O.
591 * files, font: Font Files.
592 * files, macro, searching: Macro Directories.
593 * fill mode <1>: Warnings.
594 * fill mode <2>: Manipulating Filling and Adjusting.
595 * fill mode: Implicit Line Breaks.
596 * fill mode (fi): Manipulating Filling and Adjusting.
597 * fill mode, and \c: Line Control.
598 * filling: Filling and Adjusting.
599 * filling and adjusting, manipulating: Manipulating Filling and Adjusting.
600 * final newline, stripping in diversions: Strings.
601 * fl request, causing implicit linebreak: Manipulating Filling and Adjusting.
602 * floating keep: Displays.
603 * flush output (fl): Debugging.
604 * font description file, format <1>: Font File Format.
605 * font description file, format: DESC File Format.
606 * font directories: Font Directories.
607 * font families: Font Families.
608 * font family, changing (fam, \F): Font Families.
609 * font file, format: Font File Format.
610 * font files: Font Files.
611 * font files, comments: Font File Format.
612 * font for underlining (uf): Artificial Fonts.
613 * font height, changing (\H): Artificial Fonts.
614 * font path: Font Directories.
615 * font position register (.f): Font Positions.
616 * font position, changing (\f): Font Positions.
617 * font positions: Font Positions.
618 * font selection [man]: Man font macros.
619 * font slant, changing (\S): Artificial Fonts.
620 * font style, changing (sty): Font Families.
621 * font styles: Font Families.
622 * font, mounting (fp): Font Positions.
623 * font, previous (ft, \f[], \fP): Changing Fonts.
624 * fonts <1>: Changing Fonts.
626 * fonts, artificial: Artificial Fonts.
627 * fonts, changing (ft, \f): Changing Fonts.
628 * fonts, PostScript: Font Families.
629 * fonts, searching: Font Directories.
630 * fonts, special: Special Fonts.
631 * footers <1>: Page Location Traps.
632 * footers: Page Layout.
633 * footers [ms]: ms Headers and Footers.
634 * footnotes: Footnotes and Annotations.
635 * footnotes [ms]: ms Footnotes.
637 * format of font description file: DESC File Format.
638 * format of font description files: Font File Format.
639 * format of font files: Font File Format.
640 * format of register (\g): Assigning Formats.
641 * formats, assigning (af): Assigning Formats.
642 * formats, file: File formats.
643 * fp request, and font translations: Changing Fonts.
644 * fp request, incompatibilities with AT&T troff: Implementation Differences.
645 * fractional point sizes <1>: Implementation Differences.
646 * fractional point sizes: Fractional Type Sizes.
647 * fractional type sizes <1>: Implementation Differences.
648 * fractional type sizes: Fractional Type Sizes.
649 * french-spacing: Sentences.
650 * fspecial request, and font styles: Font Families.
651 * fspecial request, and font translations: Changing Fonts.
652 * fspecial request, and imitating bold: Artificial Fonts.
653 * ft request, and font translations: Changing Fonts.
654 * geqn, invoking: Invoking geqn.
655 * geqn, the program: geqn.
656 * ggrn, invoking: Invoking ggrn.
657 * ggrn, the program: ggrn.
658 * glossary-style list, example markup [ms]: Lists in ms.
659 * glyph: Using Symbols.
660 * glyph for line drawing: Drawing Requests.
661 * glyph pile (\b): Drawing Requests.
662 * glyph properties (cflags): Using Symbols.
663 * glyph, box rule (\[br]): Drawing Requests.
664 * glyph, constant space: Artificial Fonts.
665 * glyph, defining (char): Using Symbols.
666 * glyph, for line drawing: Drawing Requests.
667 * glyph, for margins (mc): Miscellaneous.
668 * glyph, italic correction (\/): Ligatures and Kerning.
669 * glyph, leader repetition (lc): Leaders.
670 * glyph, left italic correction (\,): Ligatures and Kerning.
671 * glyph, numbered (\N) <1>: Using Symbols.
672 * glyph, numbered (\N): Character Translations.
673 * glyph, removing definition (rchar): Using Symbols.
674 * glyph, soft hyphen (hy): Manipulating Hyphenation.
675 * glyph, tab repetition (tc): Tabs and Fields.
676 * glyph, underscore (\[ru]): Drawing Requests.
677 * glyphs, available, list (`groff_char(7)' man page): Using Symbols.
678 * glyphs, output, and input characters, compatibility with AT&T troff: Implementation Differences.
679 * glyphs, overstriking (\o): Page Motions.
680 * glyphs, unnamed: Using Symbols.
681 * glyphs, unnamed, accessing with \N: Font File Format.
682 * GNU-specific register (.g): Built-in Registers.
683 * gpic, invoking: Invoking gpic.
684 * gpic, the program: gpic.
685 * grap, the program: grap.
686 * gray shading (\D'f ...'): Drawing Requests.
687 * grefer, invoking: Invoking grefer.
688 * grefer, the program: grefer.
689 * grn, the program: ggrn.
690 * grodvi, invoking: Invoking grodvi.
691 * grodvi, the program: grodvi.
692 * groff - what is it?: What Is groff?.
693 * groff capabilities: groff Capabilities.
694 * groff invocation: Invoking groff.
695 * groff, and pi request: I/O.
696 * GROFF_BIN_PATH, environment variable: Environment.
697 * GROFF_COMMAND_PREFIX, environment variable: Environment.
698 * GROFF_FONT_PATH, environment variable <1>: Font Directories.
699 * GROFF_FONT_PATH, environment variable: Environment.
700 * GROFF_TMAC_PATH, environment variable <1>: Macro Directories.
701 * GROFF_TMAC_PATH, environment variable: Environment.
702 * GROFF_TMPDIR, environment variable: Environment.
703 * GROFF_TYPESETTER, environment variable: Environment.
704 * grohtml, invoking: Invoking grohtml.
705 * grohtml, registers and strings: grohtml specific registers and strings.
706 * grohtml, the program <1>: grohtml.
707 * grohtml, the program: Groff Options.
708 * grolbp, invoking: Invoking grolbp.
709 * grolbp, the program: grolbp.
710 * grolj4, invoking: Invoking grolj4.
711 * grolj4, the program: grolj4.
712 * grops, invoking: Invoking grops.
713 * grops, the program: grops.
714 * grotty, invoking: Invoking grotty.
715 * grotty, the program: grotty.
716 * gsoelim, invoking: Invoking gsoelim.
717 * gsoelim, the program: gsoelim.
718 * gtbl, invoking: Invoking gtbl.
719 * gtbl, the program: gtbl.
720 * gtroff, identification register (.g): Built-in Registers.
721 * gtroff, interactive use: Debugging.
722 * gtroff, output: gtroff Output.
723 * gtroff, process ID register ($$): Built-in Registers.
724 * gtroff, reference: gtroff Reference.
725 * gxditview, invoking: Invoking gxditview.
726 * gxditview, the program: gxditview.
727 * hanging indentation [man]: Man usage.
728 * hcode request, and glyph definitions: Using Symbols.
729 * headers <1>: Page Location Traps.
730 * headers: Page Layout.
731 * headers [ms]: ms Headers and Footers.
732 * height, font, changing (\H): Artificial Fonts.
733 * high-water mark register (.h): Diversions.
735 * home directory: Macro Directories.
736 * horizontal input line position register (hp): Page Motions.
737 * horizontal input line position, saving (\k): Page Motions.
738 * horizontal line, drawing (\l): Drawing Requests.
739 * horizontal motion (\h): Page Motions.
740 * horizontal output line position register (.k): Page Motions.
741 * horizontal resolution register (.H): Built-in Registers.
742 * horizontal space (\h): Page Motions.
743 * horizontal space, unformatting: Strings.
744 * hours, current time (hours): Built-in Registers.
745 * hpf request, and hyphenation language: Manipulating Hyphenation.
746 * hw request, and hyphenation language: Manipulating Hyphenation.
747 * hy glyph, and cflags: Using Symbols.
748 * hyphen, explicit (\%): Manipulating Hyphenation.
749 * hyphenated lines, consecutive (hlm): Manipulating Hyphenation.
750 * hyphenating characters: Using Symbols.
751 * hyphenation: Hyphenation.
752 * hyphenation character (\%): Manipulating Hyphenation.
753 * hyphenation code (hcode): Manipulating Hyphenation.
754 * hyphenation language register (.hla): Manipulating Hyphenation.
755 * hyphenation margin (hym): Manipulating Hyphenation.
756 * hyphenation margin register (.hym): Manipulating Hyphenation.
757 * hyphenation patterns (hpf): Manipulating Hyphenation.
758 * hyphenation restrictions register (.hy): Manipulating Hyphenation.
759 * hyphenation space (hys): Manipulating Hyphenation.
760 * hyphenation space register (.hys): Manipulating Hyphenation.
761 * hyphenation, disabling (\%): Manipulating Hyphenation.
762 * hyphenation, manipulating: Manipulating Hyphenation.
763 * i unit: Measurements.
765 * IBM cp1047: Groff Options.
766 * identifiers: Identifiers.
767 * identifiers, undefined: Identifiers.
768 * ie request, and warnings: Warnings.
769 * if request, and the ! operator: Expressions.
770 * if request, operators to use with: Operators in Conditionals.
772 * imitating bold face (bd): Artificial Fonts.
773 * implementation differences: Implementation Differences.
774 * implicit breaks of lines: Implicit Line Breaks.
775 * implicit line breaks: Implicit Line Breaks.
776 * in request, causing implicit linebreak: Manipulating Filling and Adjusting.
777 * in request, using + and -: Expressions.
778 * inch unit (i): Measurements.
779 * including a file (so): I/O.
780 * incompatibilities with AT&T troff: Implementation Differences.
781 * increment value without changing the register: Auto-increment.
782 * increment, automatic: Auto-increment.
783 * indentaion, resetting to default [man]: Man usage.
784 * indentation (in): Line Layout.
785 * index, in macro package: Indices.
786 * indirect assignments: Interpolating Registers.
787 * input and output requests: I/O.
788 * input characters and output glyphs, compatibility with AT&T troff: Implementation Differences.
789 * input characters, invalid: Identifiers.
790 * input conventions: Input Conventions.
791 * input file name, current, register (.F): Built-in Registers.
792 * input level in delimited arguments: Implementation Differences.
793 * input line continuation (\): Line Control.
794 * input line number register (.c, c.): Built-in Registers.
795 * input line number, setting (lf): Debugging.
796 * input line position, horizontal, saving (\k): Page Motions.
797 * input line trap, setting (it): Input Line Traps.
798 * input line traps: Input Line Traps.
799 * input line traps and interrupted lines (itc): Input Line Traps.
800 * input line, horizontal position, register (hp): Page Motions.
801 * input stack, backtrace (backtrace): Debugging.
802 * input stack, setting limit: Debugging.
803 * input token: Gtroff Internals.
804 * input, 8-bit: Font File Format.
805 * input, standard, reading from (rd): I/O.
806 * inserting horizontal space (\h): Page Motions.
807 * installation: Installation.
808 * interactive use of gtroff: Debugging.
809 * intermediate output: gtroff Output.
810 * interpolating registers (\n): Interpolating Registers.
811 * interpolation of strings (\*): Strings.
812 * interrupted line: Line Control.
813 * interrupted line register (.int): Line Control.
814 * interrupted lines and input line traps (itc): Input Line Traps.
815 * introduction: Introduction.
816 * invalid characters for trf request: I/O.
817 * invalid input characters: Identifiers.
818 * invocation examples: Invocation Examples.
819 * invoking geqn: Invoking geqn.
820 * invoking ggrn: Invoking ggrn.
821 * invoking gpic: Invoking gpic.
822 * invoking grefer: Invoking grefer.
823 * invoking grodvi: Invoking grodvi.
824 * invoking groff: Invoking groff.
825 * invoking grohtml: Invoking grohtml.
826 * invoking grolbp: Invoking grolbp.
827 * invoking grolj4: Invoking grolj4.
828 * invoking grops: Invoking grops.
829 * invoking grotty: Invoking grotty.
830 * invoking gsoelim: Invoking gsoelim.
831 * invoking gtbl: Invoking gtbl.
832 * invoking gxditview: Invoking gxditview.
833 * italic correction (\/): Ligatures and Kerning.
834 * italic fonts [man]: Man font macros.
835 * italic glyph, correction after roman glyph (\,): Ligatures and Kerning.
836 * italic glyph, correction before roman glyph (\/): Ligatures and Kerning.
837 * justifying text: Manipulating Filling and Adjusting.
838 * justifying text (rj): Manipulating Filling and Adjusting.
840 * keep, floating: Displays.
841 * keeps [ms]: ms Displays and Keeps.
842 * kerning and ligatures: Ligatures and Kerning.
843 * kerning enabled register (.kern): Ligatures and Kerning.
844 * kerning, activating (kern): Ligatures and Kerning.
845 * kerning, track: Ligatures and Kerning.
846 * last-requested point size registers (.psr, .sr): Fractional Type Sizes.
847 * latin-1, encoding: Groff Options.
848 * layout, line: Line Layout.
849 * layout, page: Page Layout.
850 * lc request, and glyph definitions: Using Symbols.
851 * leader character: Leaders.
852 * leader character, and translations: Character Translations.
853 * leader character, non-interpreted (\a): Leaders.
854 * leader repetition character (lc): Leaders.
857 * leading spaces: Filling and Adjusting.
858 * leading spaces with ds: Strings.
859 * left italic correction (\,): Ligatures and Kerning.
860 * left margin (po): Line Layout.
861 * left margin, how to move [man]: Man usage.
862 * length of a string (length): Strings.
863 * length of line (ll): Line Layout.
864 * length of page (pl): Page Layout.
865 * length of title line (lt): Page Layout.
866 * letters, form: I/O.
867 * level of warnings (warn): Debugging.
868 * ligature: Using Symbols.
869 * ligatures and kerning: Ligatures and Kerning.
870 * ligatures enabled register (.lg): Ligatures and Kerning.
871 * ligatures, activating (lg): Ligatures and Kerning.
872 * limitations of \b escape: Drawing Requests.
873 * line break <1>: Manipulating Filling and Adjusting.
874 * line break <2>: Implicit Line Breaks.
875 * line break: Basics.
876 * line break (br): Basics.
877 * line breaks, with vertical space [man]: Man usage.
878 * line breaks, without vertical space [man]: Man usage.
879 * line control: Line Control.
880 * line dimensions: Line Layout.
881 * line drawing glyph: Drawing Requests.
882 * line indentation (in): Line Layout.
883 * line layout: Line Layout.
884 * line length (ll): Line Layout.
885 * line length register (.l): Line Layout.
886 * line number, input, register (.c, c.): Built-in Registers.
887 * line number, output, register (ln): Built-in Registers.
888 * line numbers, printing (nm): Miscellaneous.
889 * line space, extra post-vertical (\x): Changing Type Sizes.
890 * line space, extra pre-vertical (\x): Changing Type Sizes.
891 * line spacing register (.L): Manipulating Spacing.
892 * line spacing, post-vertical (pvs): Changing Type Sizes.
893 * line thickness (\D't ...'): Drawing Requests.
894 * line, blank: Implicit Line Breaks.
895 * line, drawing (\D'l ...'): Drawing Requests.
896 * line, empty (sp): Basics.
897 * line, horizontal, drawing (\l): Drawing Requests.
898 * line, implicit breaks: Implicit Line Breaks.
899 * line, input, continuation (\): Line Control.
900 * line, input, horizontal position, register (hp): Page Motions.
901 * line, input, horizontal position, saving (\k): Page Motions.
902 * line, interrupted: Line Control.
903 * line, output, continuation (\c): Line Control.
904 * line, output, horizontal position, register (.k): Page Motions.
905 * line, vertical, drawing (\L): Drawing Requests.
906 * line-tabs mode: Tabs and Fields.
907 * lines, blank, disabling: Manipulating Spacing.
908 * lines, centering (ce) <1>: Manipulating Filling and Adjusting.
909 * lines, centering (ce): Basics.
910 * lines, consecutive hyphenated (hlm): Manipulating Hyphenation.
911 * lines, interrupted, and input line traps (itc): Input Line Traps.
913 * list of available glyphs (`groff_char(7)' man page): Using Symbols.
914 * ll request, using + and -: Expressions.
915 * location, vertical, page, marking (mk): Page Motions.
916 * location, vertical, page, returning to marked (rt): Page Motions.
917 * logical operators: Expressions.
918 * long names: Implementation Differences.
919 * loops and conditionals: Conditionals and Loops.
920 * lq glyph, and lq string [man]: Predefined man strings.
921 * ls request, alternative to (pvs): Changing Type Sizes.
922 * lt request, using + and -: Expressions.
923 * M unit: Measurements.
924 * m unit: Measurements.
925 * machine unit (u): Measurements.
926 * macro basics: Basics.
927 * macro directories: Macro Directories.
928 * macro files, searching: Macro Directories.
929 * macro name register (\$0): Parameters.
930 * macro names, starting with [ or ], and refer: Identifiers.
931 * macro packages <1>: Macro Packages.
932 * macro packages: Macro Package Intro.
933 * macro packages, structuring the source code: Requests.
934 * macro, appending (am): Writing Macros.
935 * macro, arguments (\$): Parameters.
936 * macro, creating alias (als): Strings.
937 * macro, end-of-input (em): End-of-input Traps.
938 * macro, removing (rm): Strings.
939 * macro, renaming (rn): Strings.
941 * macros for manual pages [man]: Man usage.
942 * macros, recursive: while.
943 * macros, searching: Macro Directories.
944 * macros, shared name space with strings and diversions: Strings.
945 * macros, tutorial for users: Tutorial for Macro Users.
946 * macros, writing: Writing Macros.
947 * major quotes: Displays.
948 * major version number register (.x): Built-in Registers.
949 * man macros: Man usage.
950 * man macros, bold face: Man font macros.
951 * man macros, default indentation: Miscellaneous man macros.
952 * man macros, empty space before a paragraph: Miscellaneous man macros.
953 * man macros, hanging indentation: Man usage.
954 * man macros, how to set fonts: Man font macros.
955 * man macros, italic fonts: Man font macros.
956 * man macros, line breaks with vertical space: Man usage.
957 * man macros, line breaks without vertical space: Man usage.
958 * man macros, moving left margin: Man usage.
959 * man macros, resetting default indentation: Man usage.
960 * man macros, tab stops: Miscellaneous man macros.
962 * manipulating filling and adjusting: Manipulating Filling and Adjusting.
963 * manipulating hyphenation: Manipulating Hyphenation.
964 * manipulating spacing: Manipulating Spacing.
966 * margin for hyphenation (hym): Manipulating Hyphenation.
967 * margin glyph (mc): Miscellaneous.
968 * margin, bottom: Page Layout.
969 * margin, left (po): Line Layout.
970 * margin, top: Page Layout.
971 * mark, high-water, register (.h): Diversions.
972 * marking vertical page location (mk): Page Motions.
973 * maximum values of Roman numerals: Assigning Formats.
975 * me macro package: me.
976 * measurement unit: Measurements.
977 * measurements: Measurements.
978 * measurements, specifying safely: Default Units.
979 * minimum values of Roman numerals: Assigning Formats.
980 * minor version number register (.y): Built-in Registers.
981 * minutes, current time (minutes): Built-in Registers.
982 * mm macro package: mm.
983 * mode for constant glyph space (cs): Artificial Fonts.
984 * mode, compatibility: Implementation Differences.
985 * mode, copy-in: Copy-in Mode.
986 * mode, copy-in, and write requests: I/O.
987 * mode, fill <1>: Warnings.
988 * mode, fill <2>: Manipulating Filling and Adjusting.
989 * mode, fill: Implicit Line Breaks.
990 * mode, fill (fi): Manipulating Filling and Adjusting.
991 * mode, fill, and \c: Line Control.
992 * mode, line-tabs: Tabs and Fields.
993 * mode, no-fill (nf): Manipulating Filling and Adjusting.
994 * mode, no-fill, and \c: Line Control.
995 * mode, no-space (ns): Manipulating Spacing.
996 * mode, nroff: Troff and Nroff Mode.
997 * mode, safer <1>: I/O.
998 * mode, safer <2>: Macro Directories.
999 * mode, safer: Groff Options.
1000 * mode, troff: Troff and Nroff Mode.
1001 * mode, unsafe <1>: I/O.
1002 * mode, unsafe <2>: Macro Directories.
1003 * mode, unsafe: Groff Options.
1004 * month of the year register (mo): Built-in Registers.
1005 * motion operators: Expressions.
1006 * motion, horizontal (\h): Page Motions.
1007 * motion, vertical (\v): Page Motions.
1008 * motions, page: Page Motions.
1009 * mounting font (fp): Font Positions.
1011 * ms macros, accent marks: ms Strings and Special Characters.
1012 * ms macros, body text: ms Body Text.
1013 * ms macros, cover page: ms Cover Page Macros.
1014 * ms macros, creating table of contents: ms TOC.
1015 * ms macros, differences from AT&T: Differences from AT&T ms.
1016 * ms macros, displays: ms Displays and Keeps.
1017 * ms macros, document control registers: ms Document Control Registers.
1018 * ms macros, equations: ms Insertions.
1019 * ms macros, figures: ms Insertions.
1020 * ms macros, footers: ms Headers and Footers.
1021 * ms macros, footnotes: ms Footnotes.
1022 * ms macros, general structure: General ms Structure.
1023 * ms macros, headers: ms Headers and Footers.
1024 * ms macros, headings: Headings in ms.
1025 * ms macros, highlighting: Highlighting in ms.
1026 * ms macros, keeps: ms Displays and Keeps.
1027 * ms macros, lists: Lists in ms.
1028 * ms macros, margins: ms Margins.
1029 * ms macros, multiple columns: ms Multiple Columns.
1030 * ms macros, nested lists: Lists in ms.
1031 * ms macros, page layout: ms Page Layout.
1032 * ms macros, paragraph handling: Paragraphs in ms.
1033 * ms macros, references: ms Insertions.
1034 * ms macros, special characters: ms Strings and Special Characters.
1035 * ms macros, strings: ms Strings and Special Characters.
1036 * ms macros, tables: ms Insertions.
1037 * multi-file documents: Debugging.
1038 * multi-line strings: Strings.
1039 * multi-page table, example markup [ms]: Example multi-page table.
1040 * multiple columns [ms]: ms Multiple Columns.
1041 * n unit: Measurements.
1042 * name space, common, of macros, diversions, and strings: Strings.
1043 * named character (\C): Using Symbols.
1044 * names, long: Implementation Differences.
1045 * ne request, and the .trunc register: Page Location Traps.
1046 * ne request, comparison with sv: Page Control.
1047 * negating register values: Setting Registers.
1048 * nested assignments: Interpolating Registers.
1049 * nested diversions: Diversions.
1050 * nested lists [ms]: Lists in ms.
1051 * new page (bp) <1>: Page Control.
1052 * new page (bp): Basics.
1053 * newline character <1>: Escapes.
1054 * newline character: Identifiers.
1055 * newline character, and translations: Character Translations.
1056 * newline character, in strings, escaping: Strings.
1057 * newline, final, stripping in diversions: Strings.
1058 * next file, processing (nx): I/O.
1059 * next free font position register (.fp): Font Positions.
1060 * nf request, causing implicit linebreak: Manipulating Filling and Adjusting.
1061 * nl register, and .d: Diversions.
1062 * nl register, difference to .h: Diversions.
1063 * nm request, using + and -: Expressions.
1064 * no-break control character ('): Requests.
1065 * no-break control character, changing (c2): Character Translations.
1066 * no-fill mode (nf): Manipulating Filling and Adjusting.
1067 * no-fill mode, and \c: Line Control.
1068 * no-space mode (ns): Manipulating Spacing.
1069 * node, output: Gtroff Internals.
1070 * nr request, and warnings: Warnings.
1071 * nr request, using + and -: Expressions.
1072 * nroff mode: Troff and Nroff Mode.
1073 * nroff, the program: History.
1074 * number of arguments register (.$): Parameters.
1075 * number register, creating alias (aln): Setting Registers.
1076 * number register, removing (rr): Setting Registers.
1077 * number register, renaming (rnn): Setting Registers.
1078 * number registers, dumping (pnr): Debugging.
1079 * number, input line, setting (lf): Debugging.
1080 * number, page (pn): Page Layout.
1081 * numbered glyph (\N) <1>: Using Symbols.
1082 * numbered glyph (\N): Character Translations.
1083 * numbered list, example markup [ms]: Lists in ms.
1084 * numbers, and delimiters: Escapes.
1085 * numbers, line, printing (nm): Miscellaneous.
1086 * numerals, Roman: Assigning Formats.
1087 * numeric expression, valid: Expressions.
1088 * offset, page (po): Line Layout.
1089 * open request, and safer mode: Groff Options.
1090 * opena request, and safer mode: Groff Options.
1091 * opening file (open): I/O.
1092 * operator, scaling: Expressions.
1093 * operators, arithmetic: Expressions.
1094 * operators, as delimiters: Escapes.
1095 * operators, comparison: Expressions.
1096 * operators, extremum (>?, <?): Expressions.
1097 * operators, logical: Expressions.
1098 * operators, motion: Expressions.
1099 * operators, unary: Expressions.
1100 * options: Groff Options.
1101 * order of evaluation in expressions: Expressions.
1102 * orphan lines, preventing with ne: Page Control.
1103 * os request, and no-space mode: Page Control.
1104 * output and input requests: I/O.
1105 * output device name string register (.T) <1>: Built-in Registers.
1106 * output device name string register (.T): Groff Options.
1107 * output device usage number register (.T): Groff Options.
1108 * output devices <1>: Output Devices.
1109 * output devices: Output device intro.
1110 * output glyphs, and input characters,compatibility with AT&T troff: Implementation Differences.
1111 * output line number register (ln): Built-in Registers.
1112 * output line, continuation (\c): Line Control.
1113 * output line, horizontal position, register (.k): Page Motions.
1114 * output node: Gtroff Internals.
1115 * output request, and \!: Diversions.
1116 * output, flush (fl): Debugging.
1117 * output, gtroff: gtroff Output.
1118 * output, intermediate: gtroff Output.
1119 * output, suppressing (\O): Suppressing output.
1120 * output, transparent (\!, \?): Diversions.
1121 * output, transparent (cf, trf): I/O.
1122 * output, transparent, incompatibilities with AT&T troff: Implementation Differences.
1123 * output, troff: gtroff Output.
1124 * overlapping characters: Using Symbols.
1125 * overstriking glyphs (\o): Page Motions.
1126 * P unit: Measurements.
1127 * p unit: Measurements.
1128 * packages, macros: Macro Packages.
1129 * padding character, for fields (fc): Fields.
1130 * page break, conditional (ne): Page Control.
1131 * page control: Page Control.
1132 * page footers: Page Location Traps.
1133 * page headers: Page Location Traps.
1134 * page layout: Page Layout.
1135 * page layout [ms]: ms Page Layout.
1136 * page length (pl): Page Layout.
1137 * page length register (.p): Page Layout.
1138 * page location traps: Page Location Traps.
1139 * page location, vertical, marking (mk): Page Motions.
1140 * page location, vertical, returning to marked (rt): Page Motions.
1141 * page motions: Page Motions.
1142 * page number (pn): Page Layout.
1143 * page number character (%): Page Layout.
1144 * page number character, changing (pc): Page Layout.
1145 * page number register (%): Page Layout.
1146 * page offset (po): Line Layout.
1147 * page, new (bp): Page Control.
1148 * paper formats: Paper Formats.
1149 * paragraphs: Paragraphs.
1150 * parameters: Parameters.
1151 * parentheses: Expressions.
1152 * path, for font files: Font Directories.
1153 * path, for tmac files: Macro Directories.
1154 * patterns for hyphenation (hpf): Manipulating Hyphenation.
1155 * pi request, and groff: I/O.
1156 * pi request, and safer mode: Groff Options.
1157 * pic, the program: gpic.
1158 * pica unit (P): Measurements.
1159 * pile, glyph (\b): Drawing Requests.
1160 * pl request, using + and -: Expressions.
1161 * planting a trap: Traps.
1162 * platform-specific directory: Macro Directories.
1163 * pn request, using + and -: Expressions.
1164 * po request, using + and -: Expressions.
1165 * point size registers (.s, .ps): Changing Type Sizes.
1166 * point size registers, last-requested (.psr, .sr): Fractional Type Sizes.
1167 * point sizes, changing (ps, \s): Changing Type Sizes.
1168 * point sizes, fractional <1>: Implementation Differences.
1169 * point sizes, fractional: Fractional Type Sizes.
1170 * point unit (p): Measurements.
1171 * polygon, drawing (\D'p ...'): Drawing Requests.
1172 * polygon, solid, drawing (\D'P ...'): Drawing Requests.
1173 * position of lowest text line (.h): Diversions.
1174 * position, absolute, operator (|): Expressions.
1175 * position, horizontal input line, saving (\k): Page Motions.
1176 * position, horizontal, in input line, register (hp): Page Motions.
1177 * position, horizontal, in output line, register (.k): Page Motions.
1178 * position, vertical, in diversion, register (.d): Diversions.
1179 * positions, font: Font Positions.
1180 * post-vertical line spacing: Changing Type Sizes.
1181 * post-vertical line spacing register (.pvs): Changing Type Sizes.
1182 * post-vertical line spacing, changing (pvs): Changing Type Sizes.
1183 * postprocessor access: Postprocessor Access.
1184 * postprocessors: Output device intro.
1185 * PostScript fonts: Font Families.
1186 * PostScript, bounding box: Miscellaneous.
1187 * PostScript, embedding: Embedding PostScript.
1188 * prefix, for commands: Environment.
1189 * preprocessor, calling convention: Preprocessors in man pages.
1190 * preprocessors <1>: Preprocessors.
1191 * preprocessors: Preprocessor Intro.
1192 * previous font (ft, \f[], \fP): Changing Fonts.
1193 * print current page register (.P): Groff Options.
1194 * printing backslash (\\, \e, \E, \[rs]) <1>: Implementation Differences.
1195 * printing backslash (\\, \e, \E, \[rs]): Escapes.
1196 * printing line numbers (nm): Miscellaneous.
1197 * printing to stderr (tm, tm1, tmc): Debugging.
1198 * printing, zero-width (\z, \Z): Page Motions.
1199 * process ID of gtroff register ($$): Built-in Registers.
1200 * processing next file (nx): I/O.
1201 * properties of characters (cflags): Using Symbols.
1202 * properties of glyphs (cflags): Using Symbols.
1203 * ps request, and constant glyph space mode: Artificial Fonts.
1204 * ps request, incompatibilities with AT&T troff: Implementation Differences.
1205 * ps request, using + and -: Expressions.
1206 * ps request, with fractional type sizes: Fractional Type Sizes.
1207 * pso request, and safer mode: Groff Options.
1208 * pvs request, using + and -: Expressions.
1209 * quotes, major: Displays.
1210 * quotes, trailing: Strings.
1211 * ragged-left: Manipulating Filling and Adjusting.
1212 * ragged-right: Manipulating Filling and Adjusting.
1213 * rc request, and glyph definitions: Using Symbols.
1214 * read-only register, changing format: Assigning Formats.
1215 * reading from standard input (rd): I/O.
1216 * recursive macros: while.
1217 * refer, and macro names starting with [ or ]: Identifiers.
1218 * refer, the program: grefer.
1219 * reference, gtroff: gtroff Reference.
1220 * references [ms]: ms Insertions.
1221 * register, creating alias (aln): Setting Registers.
1222 * register, format (\g): Assigning Formats.
1223 * register, removing (rr): Setting Registers.
1224 * register, renaming (rnn): Setting Registers.
1225 * registers: Registers.
1226 * registers specific to grohtml: grohtml specific registers and strings.
1227 * registers, built-in: Built-in Registers.
1228 * registers, interpolating (\n): Interpolating Registers.
1229 * registers, setting (nr, \R): Setting Registers.
1230 * removing diversion (rm): Strings.
1231 * removing glyph definition (rchar): Using Symbols.
1232 * removing macro (rm): Strings.
1233 * removing number register (rr): Setting Registers.
1234 * removing request (rm): Strings.
1235 * removing string (rm): Strings.
1236 * renaming diversion (rn): Strings.
1237 * renaming macro (rn): Strings.
1238 * renaming number register (rnn): Setting Registers.
1239 * renaming request (rn): Strings.
1240 * renaming string (rn): Strings.
1241 * request arguments: Request Arguments.
1242 * request, removing (rm): Strings.
1243 * request, renaming (rn): Strings.
1244 * request, undefined: Comments.
1245 * requests: Requests.
1246 * requests for drawing: Drawing Requests.
1247 * requests for input and output: I/O.
1248 * resolution, horizontal, register (.H): Built-in Registers.
1249 * resolution, vertical, register (.V): Built-in Registers.
1250 * returning to marked vertical page location (rt): Page Motions.
1251 * revision number register (.Y): Built-in Registers.
1252 * rf, the program: History.
1253 * right-justifying (rj): Manipulating Filling and Adjusting.
1254 * rj request, causing implicit linebreak: Manipulating Filling and Adjusting.
1255 * rn glyph, and cflags: Using Symbols.
1256 * roff, the program: History.
1257 * roman glyph, correction after italic glyph (\/): Ligatures and Kerning.
1258 * roman glyph, correction before italic glyph (\,): Ligatures and Kerning.
1259 * Roman numerals: Assigning Formats.
1260 * Roman numerals, maximum and minimum: Assigning Formats.
1261 * rq glyph, and rq string [man]: Predefined man strings.
1262 * rq glyph, at end of sentence <1>: Using Symbols.
1263 * rq glyph, at end of sentence: Sentences.
1264 * rt request, using + and -: Expressions.
1265 * ru glyph, and cflags: Using Symbols.
1266 * runoff, the program: History.
1267 * s unit <1>: Fractional Type Sizes.
1268 * s unit: Measurements.
1269 * safer mode <1>: I/O.
1270 * safer mode <2>: Macro Directories.
1271 * safer mode: Groff Options.
1272 * saving horizontal input line position (\k): Page Motions.
1273 * scaling operator: Expressions.
1274 * searching fonts: Font Directories.
1275 * searching macro files: Macro Directories.
1276 * searching macros: Macro Directories.
1277 * seconds, current time (seconds): Built-in Registers.
1278 * sentence space: Sentences.
1279 * sentence space size register (.sss): Manipulating Filling and Adjusting.
1280 * sentences: Sentences.
1281 * setting diversion trap (dt): Diversion Traps.
1282 * setting end-of-input trap (em): End-of-input Traps.
1283 * setting input line number (lf): Debugging.
1284 * setting input line trap (it): Input Line Traps.
1285 * setting registers (nr, \R): Setting Registers.
1286 * shading filled objects (\D'f ...'): Drawing Requests.
1287 * shc request, and translations: Character Translations.
1288 * site-specific directory <1>: Font Directories.
1289 * site-specific directory: Macro Directories.
1290 * size of sentence space register (.sss): Manipulating Filling and Adjusting.
1291 * size of type: Sizes.
1292 * size of word space register (.ss): Manipulating Filling and Adjusting.
1294 * sizes, fractional <1>: Implementation Differences.
1295 * sizes, fractional: Fractional Type Sizes.
1296 * slant, font, changing (\S): Artificial Fonts.
1297 * soelim, the program: gsoelim.
1298 * soft hyphen character, setting (shc): Manipulating Hyphenation.
1299 * soft hyphen glyph (hy): Manipulating Hyphenation.
1300 * solid circle, drawing (\D'C ...'): Drawing Requests.
1301 * solid ellipse, drawing (\D'E ...'): Drawing Requests.
1302 * solid polygon, drawing (\D'P ...'): Drawing Requests.
1303 * sp request, and no-space mode: Manipulating Spacing.
1304 * sp request, causing implicit linebreak: Manipulating Filling and Adjusting.
1305 * space between sentences: Sentences.
1306 * space between sentences register (.sss): Manipulating Filling and Adjusting.
1307 * space between words register (.ss): Manipulating Filling and Adjusting.
1308 * space character: Escapes.
1309 * space character, zero width (\&) <1>: Drawing Requests.
1310 * space character, zero width (\&) <2>: Ligatures and Kerning.
1311 * space character, zero width (\&): Requests.
1312 * space characters, in expressions: Expressions.
1313 * space, horizontal (\h): Page Motions.
1314 * space, horizontal, unformatting: Strings.
1315 * space, unbreakable: Page Motions.
1316 * space, vertical, unit (v): Measurements.
1317 * space, width of a digit (\0): Page Motions.
1318 * spaces with ds: Strings.
1319 * spaces, leading and trailing: Filling and Adjusting.
1321 * spacing, manipulating: Manipulating Spacing.
1322 * spacing, vertical: Sizes.
1323 * special characters <1>: Special Characters.
1324 * special characters: Character Translations.
1325 * special characters [ms]: ms Strings and Special Characters.
1326 * special fonts <1>: Font File Format.
1327 * special fonts <2>: Special Fonts.
1328 * special fonts: Using Symbols.
1329 * special fonts, emboldening: Artificial Fonts.
1330 * special request, and font translations: Changing Fonts.
1331 * spline, drawing (\D'~ ...'): Drawing Requests.
1332 * springing a trap: Traps.
1333 * stacking glyphs (\b): Drawing Requests.
1334 * standard input, reading from (rd): I/O.
1335 * stderr, printing to (tm, tm1, tmc): Debugging.
1336 * stops, tabulator: Tab Stops.
1337 * string arguments: Strings.
1338 * string expansion (\*): Strings.
1339 * string interpolation (\*): Strings.
1340 * string, appending (as): Strings.
1341 * string, creating alias (als): Strings.
1342 * string, length of (length): Strings.
1343 * string, removing (rm): Strings.
1344 * string, renaming (rn): Strings.
1346 * strings [ms]: ms Strings and Special Characters.
1347 * strings specific to grohtml: grohtml specific registers and strings.
1348 * strings, multi-line: Strings.
1349 * strings, shared name space with macros and diversions: Strings.
1350 * stripping final newline in diversions: Strings.
1351 * structuring source code of documents or macro packages: Requests.
1352 * sty request, and changing fonts: Changing Fonts.
1353 * sty request, and font positions: Font Positions.
1354 * sty request, and font translations: Changing Fonts.
1355 * styles, font: Font Families.
1356 * substring (substring): Strings.
1357 * suppressing output (\O): Suppressing output.
1358 * sv request, and no-space mode: Page Control.
1359 * switching environments (ev): Environments.
1360 * sy request, and safer mode: Groff Options.
1361 * symbol: Using Symbols.
1362 * symbol table, dumping (pm): Debugging.
1363 * symbol, defining (char): Using Symbols.
1364 * symbols, using: Using Symbols.
1365 * system() return value register (systat): I/O.
1366 * tab character <1>: Escapes.
1367 * tab character: Tab Stops.
1368 * tab character, and translations: Character Translations.
1369 * tab character, non-interpreted (\t): Tabs and Fields.
1370 * tab repetition character (tc): Tabs and Fields.
1371 * tab settings register (.tabs): Tabs and Fields.
1372 * tab stops: Tab Stops.
1373 * tab stops [man]: Miscellaneous man macros.
1374 * tab stops, for TTY output devices: Tabs and Fields.
1375 * tab, line-tabs mode: Tabs and Fields.
1376 * table of contents <1>: Leaders.
1377 * table of contents: Table of Contents.
1378 * table of contents, creating [ms]: ms TOC.
1379 * tables [ms]: ms Insertions.
1380 * tabs, and fields: Tabs and Fields.
1381 * tabs, before comments: Comments.
1382 * tbl, the program: gtbl.
1383 * text line, position of lowest (.h): Diversions.
1384 * text, gtroff processing: Text.
1385 * text, justifying: Manipulating Filling and Adjusting.
1386 * text, justifying (rj): Manipulating Filling and Adjusting.
1387 * thickness of lines (\D't ...'): Drawing Requests.
1388 * three-part title (tl): Page Layout.
1389 * ti request, causing implicit linebreak: Manipulating Filling and Adjusting.
1390 * ti request, using + and -: Expressions.
1391 * time, current: I/O.
1392 * time, current, hours (hours): Built-in Registers.
1393 * time, current, minutes (minutes): Built-in Registers.
1394 * time, current, seconds (seconds): Built-in Registers.
1395 * title line (tl): Page Layout.
1396 * title line length register (.lt): Page Layout.
1397 * title line, length (lt): Page Layout.
1398 * title page, example markup: ms Cover Page Macros.
1399 * titles: Page Layout.
1400 * tkf request, and font styles: Font Families.
1401 * tkf request, and font translations: Changing Fonts.
1402 * tkf request, with fractional type sizes: Fractional Type Sizes.
1403 * tl request, and mc: Miscellaneous.
1404 * tmac, directory: Macro Directories.
1405 * tmac, path: Macro Directories.
1406 * TMPDIR, environment variable: Environment.
1407 * token, input: Gtroff Internals.
1408 * top margin: Page Layout.
1409 * top-level diversion: Diversions.
1410 * top-level diversion, and \!: Diversions.
1411 * top-level diversion, and \?: Diversions.
1412 * top-level diversion, and bp: Page Control.
1413 * tr request, and glyph definitions: Using Symbols.
1414 * tr request, and soft hyphen character: Manipulating Hyphenation.
1415 * tr request, incompatibilities with AT&T troff: Implementation Differences.
1416 * track kerning: Ligatures and Kerning.
1417 * track kerning, activating (tkf): Ligatures and Kerning.
1418 * trailing quotes: Strings.
1419 * trailing spaces: Filling and Adjusting.
1420 * translations of characters: Character Translations.
1421 * transparent characters <1>: Using Symbols.
1422 * transparent characters: Sentences.
1423 * transparent output (\!, \?): Diversions.
1424 * transparent output (cf, trf): I/O.
1425 * transparent output, incompatibilities with AT&T troff: Implementation Differences.
1426 * trap, changing location (ch): Page Location Traps.
1427 * trap, distance, register (.t): Page Location Traps.
1428 * trap, diversion, setting (dt): Diversion Traps.
1429 * trap, end-of-input, setting (em): End-of-input Traps.
1430 * trap, input line, setting (it): Input Line Traps.
1431 * trap, planting: Traps.
1432 * trap, springing: Traps.
1434 * traps, blank line: Blank Line Traps.
1435 * traps, diversion: Diversion Traps.
1436 * traps, dumping (ptr): Debugging.
1437 * traps, end-of-input: End-of-input Traps.
1438 * traps, input line: Input Line Traps.
1439 * traps, input line, and interrupted lines (itc): Input Line Traps.
1440 * traps, page location: Page Location Traps.
1441 * trf request, and invalid characters: I/O.
1442 * trf request, causing implicit linebreak: Manipulating Filling and Adjusting.
1443 * trin request, and asciify: Diversions.
1444 * troff mode: Troff and Nroff Mode.
1445 * troff output: gtroff Output.
1446 * truncated vertical space register (.trunc): Page Location Traps.
1447 * tutorial for macro users: Tutorial for Macro Users.
1449 * type size registers (.s, .ps): Changing Type Sizes.
1450 * type sizes, changing (ps, \s): Changing Type Sizes.
1451 * type sizes, fractional <1>: Implementation Differences.
1452 * type sizes, fractional: Fractional Type Sizes.
1453 * u unit: Measurements.
1454 * uf request, and font styles: Font Families.
1455 * ul glyph, and cflags: Using Symbols.
1456 * ul request, and font translations: Changing Fonts.
1457 * unary operators: Expressions.
1458 * unbreakable space: Page Motions.
1459 * undefined identifiers: Identifiers.
1460 * undefined request: Comments.
1461 * underline font (uf): Artificial Fonts.
1462 * underlining (ul): Artificial Fonts.
1463 * underlining, continuous (cu): Artificial Fonts.
1464 * underscore glyph (\[ru]): Drawing Requests.
1465 * unformatting diversions (asciify): Diversions.
1466 * unformatting horizontal space: Strings.
1467 * Unicode <1>: Using Symbols.
1468 * Unicode: Identifiers.
1469 * unit, c: Measurements.
1470 * unit, f: Measurements.
1471 * unit, f, and colors: Colors.
1472 * unit, i: Measurements.
1473 * unit, M: Measurements.
1474 * unit, m: Measurements.
1475 * unit, n: Measurements.
1476 * unit, P: Measurements.
1477 * unit, p: Measurements.
1478 * unit, s <1>: Fractional Type Sizes.
1479 * unit, s: Measurements.
1480 * unit, u: Measurements.
1481 * unit, v: Measurements.
1482 * unit, z <1>: Fractional Type Sizes.
1483 * unit, z: Measurements.
1484 * units of measurement: Measurements.
1485 * units, default: Default Units.
1486 * unnamed glyphs: Using Symbols.
1487 * unnamed glyphs, accessing with \N: Font File Format.
1488 * unsafe mode <1>: I/O.
1489 * unsafe mode <2>: Macro Directories.
1490 * unsafe mode: Groff Options.
1491 * user's macro tutorial: Tutorial for Macro Users.
1492 * user's tutorial for macros: Tutorial for Macro Users.
1493 * using symbols: Using Symbols.
1494 * utf-8, encoding: Groff Options.
1495 * v unit: Measurements.
1496 * valid numeric expression: Expressions.
1497 * value, incrementing without changing the register: Auto-increment.
1498 * variables in environment: Environment.
1499 * version number, major, register (.x): Built-in Registers.
1500 * version number, minor, register (.y): Built-in Registers.
1501 * vertical line drawing (\L): Drawing Requests.
1502 * vertical line spacing register (.v): Changing Type Sizes.
1503 * vertical line spacing, changing (vs): Changing Type Sizes.
1504 * vertical line spacing, effective value: Changing Type Sizes.
1505 * vertical motion (\v): Page Motions.
1506 * vertical page location, marking (mk): Page Motions.
1507 * vertical page location, returning to marked (rt): Page Motions.
1508 * vertical position in diversion register (.d): Diversions.
1509 * vertical position trap enable register (.vpt): Page Location Traps.
1510 * vertical position traps, enabling (vpt): Page Location Traps.
1511 * vertical resolution register (.V): Built-in Registers.
1512 * vertical space unit (v): Measurements.
1513 * vertical spacing: Sizes.
1514 * warnings <1>: Warnings.
1515 * warnings: Debugging.
1516 * warnings, level (warn): Debugging.
1517 * what is groff?: What Is groff?.
1519 * while request, and the ! operator: Expressions.
1520 * while request, confusing with br: while.
1521 * while request, operators to use with: Operators in Conditionals.
1522 * whitespace characters: Identifiers.
1523 * width escape (\w): Page Motions.
1524 * word space size register (.ss): Manipulating Filling and Adjusting.
1525 * writing macros: Writing Macros.
1526 * writing to file (write): I/O.
1527 * year, current, register (year, yr): Built-in Registers.
1528 * z unit <1>: Fractional Type Sizes.
1529 * z unit: Measurements.
1530 * zero width space character (\&) <1>: Drawing Requests.
1531 * zero width space character (\&) <2>: Ligatures and Kerning.
1532 * zero width space character (\&): Requests.
1533 * zero-width printing (\z, \Z): Page Motions.
1534 * |, and page motion: Expressions.