| blob | 221eba3c613865ab6f0141164fb4d9722359141c |
1 .\" $Id: mandoc_char.7,v 1.29 2009/11/16 09:52:47 kristaps Exp $
2 .\"
3 .\" Copyright (c) 2009 Kristaps Dzonsons <kristaps@kth.se>
4 .\"
5 .\" Permission to use, copy, modify, and distribute this software for any
6 .\" purpose with or without fee is hereby granted, provided that the above
7 .\" copyright notice and this permission notice appear in all copies.
8 .\"
9 .\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 .\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 .\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 .\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 .\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 .\"
17 .Dd November 19, 2009
18 .Dt MANDOC_CHAR 7
19 .Os
20 .
21 .
22 .Sh NAME
23 .Nm mandoc_char
24 .Nd mandoc special characters
25 .
26 .
27 .Sh DESCRIPTION
28 This documents the special characters and predefined strings accepted by
29 .Xr mandoc 1
30 to format
31 .Xr mdoc 7
32 and
33 .Xr man 7
34 documents.
35 .
36 .Pp
37 Both
38 .Xr mdoc 7
39 and
40 .Xr man 7
41 encode special characters with
42 .Sq \eX
43 .Pq for a one-character escape ,
44 .Sq \e(XX
45 .Pq two-character ,
46 and
47 .Sq \e[N]
48 .Pq N-character .
49 One may generalise
50 .Sq \e(XX
51 as
52 .Sq \e[XX]
53 and
54 .Sq \eX
55 as
56 .Sq \e[X] .
57 Predefined strings are functionally similar to special characters, using
58 .Sq \e*X
59 .Pq for a one-character escape ,
60 .Sq \e*(XX
61 .Pq two-character ,
62 and
63 .Sq \e*[N]
64 .Pq N-character .
65 One may generalise
66 .Sq \e*(XX
67 as
68 .Sq \e*[XX]
69 and
70 .Sq \e*X
71 as
72 .Sq \e*[X] .
73 .
74 .Pp
75 Note that each output mode will have a different rendering of the
76 characters. It's guaranteed that each input symbol will correspond to a
77 (more or less) meaningful output rendering, regardless the mode.
78 .
79 .
80 .Sh SPECIAL CHARACTERS
81 These are the preferred input symbols for producing special characters.
82 .
83 .Pp
84 Spacing:
85 .Bl -column -compact -offset indent 10m 20m
86 .It Em Input Ta Em Description
87 .It \e~ Ta non-breaking, non-collapsing space
88 .It \e Ta breaking, non-collapsing n-width space
89 .It \e^ Ta zero-width space
90 .It \e% Ta zero-width space
91 .It \e& Ta zero-width space
92 .It \e| Ta zero-width space
93 .It \e0 Ta breaking, non-collapsing digit-width space
94 .It \ec Ta removes any trailing space (if applicable)
95 .El
96 .
97 .Pp
98 Lines:
99 .Bl -column -compact -offset indent 10m 10m 10m
100 .It Em Input Ta Em Rendered Ta Em Description
101 .It \e(ba Ta \(ba Ta bar
102 .It \e(br Ta \(br Ta box rule
103 .It \e(ul Ta \(ul Ta underscore
104 .It \e(rl Ta \(rl Ta overline
105 .It \e(bb Ta \(bb Ta broken bar
106 .It \e(sl Ta \(sl Ta forward slash
107 .It \e(rs Ta \(rs Ta backward slash
108 .El
109 .
110 .Pp
111 Text markers:
112 .Bl -column -compact -offset indent 10m 10m 10m
113 .It Em Input Ta Em Rendered Ta Em Description
114 .It \e(ci Ta \(ci Ta circle
115 .It \e(bu Ta \(bu Ta bullet
116 .It \e(dd Ta \(dd Ta double dagger
117 .It \e(dg Ta \(dg Ta dagger
118 .It \e(lz Ta \(lz Ta lozenge
119 .It \e(sq Ta \(sq Ta white square
120 .It \e(ps Ta \(ps Ta paragraph
121 .It \e(sc Ta \(sc Ta section
122 .It \e(lh Ta \(lh Ta left hand
123 .It \e(rh Ta \(rh Ta right hand
124 .It \e(at Ta \(at Ta at
125 .It \e(sh Ta \(sh Ta hash (pound)
126 .It \e(CR Ta \(CR Ta carriage return
127 .It \e(OK Ta \(OK Ta check mark
128 .El
129 .
130 .Pp
131 Legal symbols:
132 .Bl -column -compact -offset indent 10m 10m 10m
133 .It Em Input Ta Em Rendered Ta Em Description
134 .It \e(co Ta \(co Ta copyright
135 .It \e(rg Ta \(rg Ta registered
136 .It \e(tm Ta \(tm Ta trademarked
137 .El
138 .
139 .Pp
140 Punctuation:
141 .Bl -column -compact -offset indent 10m 10m 10m
142 .It Em Input Ta Em Rendered Ta Em Description
143 .It \e(em Ta \(em Ta em-dash
144 .It \e(en Ta \(en Ta en-dash
145 .It \e(hy Ta \(hy Ta hyphen
146 .It \e\e Ta \\ Ta back-slash
147 .It \ee Ta \e Ta back-slash
148 .It \e. Ta \. Ta period
149 .It \e(r! Ta \(r! Ta upside-down exclamation
150 .It \e(r? Ta \(r? Ta upside-down question
151 .El
152 .
153 .Pp
154 Quotes:
155 .Bl -column -compact -offset indent 10m 10m 10m
156 .It Em Input Ta Em Rendered Ta Em Description
157 .It \e(Bq Ta \(Bq Ta right low double-quote
158 .It \e(bq Ta \(bq Ta right low single-quote
159 .It \e(lq Ta \(lq Ta left double-quote
160 .It \e(rq Ta \(rq Ta right double-quote
161 .It \e(oq Ta \(oq Ta left single-quote
162 .It \e(cq Ta \(cq Ta right single-quote
163 .It \e(aq Ta \(aq Ta apostrophe quote (text)
164 .It \e(dq Ta \(dq Ta double quote (text)
165 .It \e(Fo Ta \(Fo Ta left guillemet
166 .It \e(Fc Ta \(Fc Ta right guillemet
167 .It \e(fo Ta \(fo Ta left single guillemet
168 .It \e(fc Ta \(fc Ta right single guillemet
169 .El
170 .
171 .Pp
172 Brackets:
173 .Bl -column -compact -offset indent 10m 10m 10m
174 .It Em Input Ta Em Rendered Ta Em Description
175 .It \e(lB Ta \(lB Ta left bracket
176 .It \e(rB Ta \(rB Ta right bracket
177 .It \e(lC Ta \(lC Ta left brace
178 .It \e(rC Ta \(rC Ta right brace
179 .It \e(la Ta \(la Ta left angle
180 .It \e(ra Ta \(ra Ta right angle
181 .It \e(bv Ta \(bv Ta brace extension
182 .It \e[braceex] Ta \[braceex] Ta brace extension
183 .It \e[bracketlefttp] Ta \[bracketlefttp] Ta top-left hooked bracket
184 .It \e[bracketleftbp] Ta \[bracketleftbp] Ta bottom-left hooked bracket
185 .It \e[bracketleftex] Ta \[bracketleftex] Ta left hooked bracket extension
186 .It \e[bracketrighttp] Ta \[bracketrighttp] Ta top-right hooked bracket
187 .It \e[bracketrightbp] Ta \[bracketrightbp] Ta bottom-right hooked bracket
188 .It \e[bracketrightex] Ta \[bracketrightex] Ta right hooked bracket extension
189 .It \e(lt Ta \(lt Ta top-left hooked brace
190 .It \e[bracelefttp] Ta \[bracelefttp] Ta top-left hooked brace
191 .It \e(lk Ta \(lk Ta mid-left hooked brace
192 .It \e[braceleftmid] Ta \[braceleftmid] Ta mid-left hooked brace
193 .It \e(lb Ta \(lb Ta bottom-left hooked brace
194 .It \e[braceleftbp] Ta \[braceleftbp] Ta bottom-left hooked brace
195 .It \e[braceleftex] Ta \[braceleftex] Ta left hooked brace extension
196 .It \e(rt Ta \(rt Ta top-left hooked brace
197 .It \e[bracerighttp] Ta \[bracerighttp] Ta top-right hooked brace
198 .It \e(rk Ta \(rk Ta mid-right hooked brace
199 .It \e[bracerightmid] Ta \[bracerightmid] Ta mid-right hooked brace
200 .It \e(rb Ta \(rb Ta bottom-right hooked brace
201 .It \e[bracerightbp] Ta \[bracerightbp] Ta bottom-right hooked brace
202 .It \e[bracerightex] Ta \[bracerightex] Ta right hooked brace extension
203 .It \e[parenlefttp] Ta \[parenlefttp] Ta top-left hooked parenthesis
204 .It \e[parenleftbp] Ta \[parenleftbp] Ta bottom-left hooked parenthesis
205 .It \e[parenleftex] Ta \[parenleftex] Ta left hooked parenthesis extension
206 .It \e[parenrighttp] Ta \[parenrighttp] Ta top-right hooked parenthesis
207 .It \e[parenrightbp] Ta \[parenrightbp] Ta bottom-right hooked parenthesis
208 .It \e[parenrightex] Ta \[parenrightex] Ta right hooked parenthesis extension
209 .El
210 .
211 .Pp
212 Arrows:
213 .Bl -column -compact -offset indent 10m 10m 10m
214 .It Em Input Ta Em Rendered Ta Em Description
215 .It \e(<- Ta \(<- Ta left arrow
216 .It \e(-> Ta \(-> Ta right arrow
217 .It \e(<> Ta \(<> Ta left-right arrow
218 .It \e(da Ta \(da Ta down arrow
219 .It \e(ua Ta \(ua Ta up arrow
220 .It \e(va Ta \(va Ta up-down arrow
221 .It \e(lA Ta \(lA Ta left double-arrow
222 .It \e(rA Ta \(rA Ta right double-arrow
223 .It \e(hA Ta \(hA Ta left-right double-arrow
224 .It \e(uA Ta \(uA Ta up double-arrow
225 .It \e(dA Ta \(dA Ta down double-arrow
226 .It \e(vA Ta \(vA Ta up-down double-arrow
227 .El
228 .
229 .Pp
230 Logical:
231 .Bl -column -compact -offset indent 10m 10m 10m
232 .It Em Input Ta Em Rendered Ta Em Description
233 .It \e(AN Ta \(AN Ta logical and
234 .It \e(OR Ta \(OR Ta logical or
235 .It \e(no Ta \(no Ta logical not
236 .It \e[tno] Ta \[tno] Ta logical not (text)
237 .It \e(te Ta \(te Ta existential quantifier
238 .It \e(fa Ta \(fa Ta universal quantifier
239 .It \e(st Ta \(st Ta such that
240 .It \e(tf Ta \(tf Ta therefore
241 .It \e(3d Ta \(3d Ta therefore
242 .It \e(or Ta \(or Ta bitwise or
243 .El
244 .
245 .Pp
246 Mathematical:
247 .Bl -column -compact -offset indent 10m 10m 10m
248 .It Em Input Ta Em Rendered Ta Em Description
249 .It \e(pl Ta \(pl Ta plus
250 .It \e(mi Ta \(mi Ta minus
251 .It \e- Ta \- Ta minus (text)
252 .It \e(-+ Ta \(-+ Ta minus-plus
253 .It \e(+- Ta \(+- Ta plus-minus
254 .It \e[t+-] Ta \[t+-] Ta plus-minus (text)
255 .It \e(pc Ta \(pc Ta centre-dot
256 .It \e(mu Ta \(mu Ta multiply
257 .It \e[tmu] Ta \[tmu] Ta multiply (text)
258 .It \e(c* Ta \(c* Ta circle-multiply
259 .It \e(c+ Ta \(c+ Ta circle-plus
260 .It \e(di Ta \(di Ta divide
261 .It \e[tdi] Ta \[tdi] Ta divide (text)
262 .It \e(f/ Ta \(f/ Ta fraction
263 .It \e(** Ta \(** Ta asterisk
264 .It \e(<= Ta \(<= Ta less-than-equal
265 .It \e(>= Ta \(>= Ta greater-than-equal
266 .It \e(<< Ta \(<< Ta much less
267 .It \e(>> Ta \(>> Ta much greater
268 .It \e(eq Ta \(eq Ta equal
269 .It \e(!= Ta \(!= Ta not equal
270 .It \e(== Ta \(== Ta equivalent
271 .It \e(ne Ta \(ne Ta not equivalent
272 .It \e(=~ Ta \(=~ Ta congruent
273 .It \e(-~ Ta \(-~ Ta asymptotically congruent
274 .It \e(ap Ta \(ap Ta asymptotically similar
275 .It \e(~~ Ta \(~~ Ta approximately similar
276 .It \e(~= Ta \(~= Ta approximately equal
277 .It \e(pt Ta \(pt Ta proportionate
278 .It \e(es Ta \(es Ta empty set
279 .It \e(mo Ta \(mo Ta element
280 .It \e(nm Ta \(nm Ta not element
281 .It \e(sb Ta \(sb Ta proper subset
282 .It \e(nb Ta \(nb Ta not subset
283 .It \e(sp Ta \(sp Ta proper superset
284 .It \e(nc Ta \(nc Ta not superset
285 .It \e(ib Ta \(ib Ta reflexive subset
286 .It \e(ip Ta \(ip Ta reflexive superset
287 .It \e(ca Ta \(ca Ta intersection
288 .It \e(cu Ta \(cu Ta union
289 .It \e(/_ Ta \(/_ Ta angle
290 .It \e(pp Ta \(pp Ta perpendicular
291 .It \e(is Ta \(is Ta integral
292 .It \e[integral] Ta \[integral] Ta integral
293 .It \e[sum] Ta \[sum] Ta summation
294 .It \e[product] Ta \[product] Ta product
295 .It \e[coproduct] Ta \[coproduct] Ta coproduct
296 .It \e(gr Ta \(gr Ta gradient
297 .It \e(sr Ta \(sr Ta square root
298 .It \e[sqrt] Ta \[sqrt] Ta square root
299 .It \e(lc Ta \(lc Ta left-ceiling
300 .It \e(rc Ta \(rc Ta right-ceiling
301 .It \e(lf Ta \(lf Ta left-floor
302 .It \e(rf Ta \(rf Ta right-floor
303 .It \e(if Ta \(if Ta infinity
304 .It \e(Ah Ta \(Ah Ta aleph
305 .It \e(Im Ta \(Im Ta imaginary
306 .It \e(Re Ta \(Re Ta real
307 .It \e(pd Ta \(pd Ta partial differential
308 .It \e(-h Ta \(-h Ta Planck constant over 2\(*p
309 .El
310 .
311 .Pp
312 Ligatures:
313 .Bl -column -compact -offset indent 10m 10m 10m
314 .It Em Input Ta Em Rendered Ta Em Description
315 .It \e(ff Ta \(ff Ta ff ligature
316 .It \e(fi Ta \(fi Ta fi ligature
317 .It \e(fl Ta \(fl Ta fl ligature
318 .It \e(Fi Ta \(Fi Ta ffi ligature
319 .It \e(Fl Ta \(Fl Ta ffl ligature
320 .It \e(AE Ta \(AE Ta AE
321 .It \e(ae Ta \(ae Ta ae
322 .It \e(OE Ta \(OE Ta OE
323 .It \e(oe Ta \(oe Ta oe
324 .It \e(ss Ta \(ss Ta German eszett
325 .It \e(IJ Ta \(IJ Ta IJ ligature
326 .It \e(ij Ta \(ij Ta ij ligature
327 .El
328 .
329 .Pp
330 Accents:
331 .Bl -column -compact -offset indent 10m 10m 10m
332 .It Em Input Ta Em Rendered Ta Em Description
333 .It \e(a" Ta \(a" Ta Hungarian umlaut
334 .It \e(a- Ta \(a- Ta macron
335 .It \e(a. Ta \(a. Ta dotted
336 .It \e(a^ Ta \(a^ Ta circumflex
337 .It \e(aa Ta \(aa Ta acute
338 .It \e' Ta \' Ta acute
339 .It \e(ga Ta \(ga Ta grave
340 .It \e` Ta \` Ta grave
341 .It \e(ab Ta \(ab Ta breve
342 .It \e(ac Ta \(ac Ta cedilla
343 .It \e(ad Ta \(ad Ta dieresis
344 .It \e(ah Ta \(ah Ta caron
345 .It \e(ao Ta \(ao Ta ring
346 .It \e(a~ Ta \(a~ Ta tilde
347 .It \e(ho Ta \(ho Ta ogonek
348 .It \e(ha Ta \(ha Ta hat (text)
349 .It \e(ti Ta \(ti Ta tilde (text)
350 .El
351 .
352 .Pp
353 Accented letters:
354 .Bl -column -compact -offset indent 10m 10m 10m
355 .It Em Input Ta Em Rendered Ta Em Description
356 .It \e('A Ta \('A Ta acute A
357 .It \e('E Ta \('E Ta acute E
358 .It \e('I Ta \('I Ta acute I
359 .It \e('O Ta \('O Ta acute O
360 .It \e('U Ta \('U Ta acute U
361 .It \e('a Ta \('a Ta acute a
362 .It \e('e Ta \('e Ta acute e
363 .It \e('i Ta \('i Ta acute i
364 .It \e('o Ta \('o Ta acute o
365 .It \e('u Ta \('u Ta acute u
366 .It \e(`A Ta \(`A Ta grave A
367 .It \e(`E Ta \(`E Ta grave E
368 .It \e(`I Ta \(`I Ta grave I
369 .It \e(`O Ta \(`O Ta grave O
370 .It \e(`U Ta \(`U Ta grave U
371 .It \e(`a Ta \(`a Ta grave a
372 .It \e(`e Ta \(`e Ta grave e
373 .It \e(`i Ta \(`i Ta grave i
374 .It \e(`o Ta \(`i Ta grave o
375 .It \e(`u Ta \(`u Ta grave u
376 .It \e(~A Ta \(~A Ta tilde A
377 .It \e(~N Ta \(~N Ta tilde N
378 .It \e(~O Ta \(~O Ta tilde O
379 .It \e(~a Ta \(~a Ta tilde a
380 .It \e(~n Ta \(~n Ta tilde n
381 .It \e(~o Ta \(~o Ta tilde o
382 .It \e(:A Ta \(:A Ta dieresis A
383 .It \e(:E Ta \(:E Ta dieresis E
384 .It \e(:I Ta \(:I Ta dieresis I
385 .It \e(:O Ta \(:O Ta dieresis O
386 .It \e(:U Ta \(:U Ta dieresis U
387 .It \e(:a Ta \(:a Ta dieresis a
388 .It \e(:e Ta \(:e Ta dieresis e
389 .It \e(:i Ta \(:i Ta dieresis i
390 .It \e(:o Ta \(:o Ta dieresis o
391 .It \e(:u Ta \(:u Ta dieresis u
392 .It \e(:y Ta \(:y Ta dieresis y
393 .It \e(^A Ta \(^A Ta circumflex A
394 .It \e(^E Ta \(^E Ta circumflex E
395 .It \e(^I Ta \(^I Ta circumflex I
396 .It \e(^O Ta \(^O Ta circumflex O
397 .It \e(^U Ta \(^U Ta circumflex U
398 .It \e(^a Ta \(^a Ta circumflex a
399 .It \e(^e Ta \(^e Ta circumflex e
400 .It \e(^i Ta \(^i Ta circumflex i
401 .It \e(^o Ta \(^o Ta circumflex o
402 .It \e(^u Ta \(^u Ta circumflex u
403 .It \e(,C Ta \(,C Ta cedilla C
404 .It \e(,c Ta \(,c Ta cedilla c
405 .It \e(/L Ta \(/L Ta stroke L
406 .It \e(/l Ta \(/l Ta stroke l
407 .It \e(/O Ta \(/O Ta stroke O
408 .It \e(/o Ta \(/o Ta stroke o
409 .It \e(oA Ta \(oA Ta ring A
410 .It \e(oa Ta \(oa Ta ring a
411 .El
412 .
413 .Pp
414 Special letters:
415 .Bl -column -compact -offset indent 10m 10m 10m
416 .It Em Input Ta Em Rendered Ta Em Description
417 .It \e(-D Ta \(-D Ta Eth
418 .It \e(Sd Ta \(Sd Ta eth
419 .It \e(TP Ta \(TP Ta Thorn
420 .It \e(Tp Ta \(Tp Ta thorn
421 .It \e(.i Ta \(.i Ta dotless i
422 .It \e(.j Ta \(.j Ta dotless j
423 .El
424 .
425 .Pp
426 Currency:
427 .Bl -column -compact -offset indent 10m 10m 10m
428 .It Em Input Ta Em Rendered Ta Em Description
429 .It \e(Do Ta \(Do Ta dollar
430 .It \e(ct Ta \(ct Ta cent
431 .It \e(Eu Ta \(Eu Ta Euro symbol
432 .It \e(eu Ta \(eu Ta Euro symbol
433 .It \e(Ye Ta \(Ye Ta yen
434 .It \e(Po Ta \(Po Ta pound
435 .It \e(Cs Ta \(Cs Ta Scandinavian
436 .It \e(Fn Ta \(Fn Ta florin
437 .El
438 .
439 .Pp
440 Units:
441 .Bl -column -compact -offset indent 10m 10m 10m
442 .It Em Input Ta Em Rendered Ta Em Description
443 .It \e(de Ta \(de Ta degree
444 .It \e(%0 Ta \(%0 Ta per-thousand
445 .It \e(fm Ta \(fm Ta minute
446 .It \e(sd Ta \(sd Ta second
447 .It \e(mc Ta \(mc Ta micro
448 .El
449 .
450 .Pp
451 Greek letters:
452 .Bl -column -compact -offset indent 10m 10m 10m
453 .It Em Input Ta Em Rendered Ta Em Description
454 .It \e(*A Ta \(*A Ta Alpha
455 .It \e(*B Ta \(*B Ta Beta
456 .It \e(*G Ta \(*G Ta Gamma
457 .It \e(*D Ta \(*D Ta Delta
458 .It \e(*E Ta \(*E Ta Epsilon
459 .It \e(*Z Ta \(*Z Ta Zeta
460 .It \e(*Y Ta \(*Y Ta Eta
461 .It \e(*H Ta \(*H Ta Theta
462 .It \e(*I Ta \(*I Ta Iota
463 .It \e(*K Ta \(*K Ta Kappa
464 .It \e(*L Ta \(*L Ta Lambda
465 .It \e(*M Ta \(*M Ta Mu
466 .It \e(*N Ta \(*N Ta Nu
467 .It \e(*C Ta \(*C Ta Xi
468 .It \e(*O Ta \(*O Ta Omicron
469 .It \e(*P Ta \(*P Ta Pi
470 .It \e(*R Ta \(*R Ta Rho
471 .It \e(*S Ta \(*S Ta Sigma
472 .It \e(*T Ta \(*T Ta Tau
473 .It \e(*U Ta \(*U Ta Upsilon
474 .It \e(*F Ta \(*F Ta Phi
475 .It \e(*X Ta \(*X Ta Chi
476 .It \e(*Q Ta \(*Q Ta Psi
477 .It \e(*W Ta \(*W Ta Omega
478 .It \e(*a Ta \(*a Ta alpha
479 .It \e(*b Ta \(*b Ta beta
480 .It \e(*g Ta \(*g Ta gamma
481 .It \e(*d Ta \(*d Ta delta
482 .It \e(*e Ta \(*e Ta epsilon
483 .It \e(*z Ta \(*z Ta zeta
484 .It \e(*y Ta \(*y Ta eta
485 .It \e(*h Ta \(*h Ta theta
486 .It \e(*i Ta \(*i Ta iota
487 .It \e(*k Ta \(*k Ta kappa
488 .It \e(*l Ta \(*l Ta lambda
489 .It \e(*m Ta \(*m Ta mu
490 .It \e(*n Ta \(*n Ta nu
491 .It \e(*c Ta \(*c Ta xi
492 .It \e(*o Ta \(*o Ta omicron
493 .It \e(*p Ta \(*p Ta pi
494 .It \e(*r Ta \(*r Ta rho
495 .It \e(*s Ta \(*s Ta sigma
496 .It \e(*t Ta \(*t Ta tau
497 .It \e(*u Ta \(*u Ta upsilon
498 .It \e(*f Ta \(*f Ta phi
499 .It \e(*x Ta \(*x Ta chi
500 .It \e(*q Ta \(*q Ta psi
501 .It \e(*w Ta \(*w Ta omega
502 .It \e(+h Ta \(+h Ta theta variant
503 .It \e(+f Ta \(+f Ta phi variant
504 .It \e(+p Ta \(+p Ta pi variant
505 .It \e(+e Ta \(+e Ta epsilon variant
506 .It \e(ts Ta \(ts Ta sigma terminal
507 .El
508 .
509 .
510 .Sh PREDEFINED STRINGS
511 These are not recommended for use, as they differ across
512 implementations:
513 .
514 .Pp
515 .Bl -column -compact -offset indent 10m 10m 10m
516 .It Em Input Ta Em Rendered Ta Em Description
517 .It \e*(Ba Ta \*(Ba Ta vertical bar
518 .It \e*(Ne Ta \*(Ne Ta not equal
519 .It \e*(Ge Ta \*(Ge Ta greater-than-equal
520 .It \e*(Le Ta \*(Le Ta less-than-equal
521 .It \e*(Gt Ta \*(Gt Ta greater-than
522 .It \e*(Lt Ta \*(Lt Ta less-than
523 .It \e*(Pm Ta \*(Pm Ta plus-minus
524 .It \e*(If Ta \*(If Ta infinity
525 .It \e*(Pi Ta \*(Pi Ta pi
526 .It \e*(Na Ta \*(Na Ta NaN
527 .It \e*(Am Ta \*(Am Ta ampersand
528 .It \e*R Ta \*R Ta restricted mark
529 .It \e*(Tm Ta \*(Tm Ta trade mark
530 .It \e*q Ta \*q Ta double-quote
531 .It \e*(Rq Ta \*(Rq Ta right-double-quote
532 .It \e*(Lq Ta \*(Lq Ta left-double-quote
533 .It \e*(lp Ta \*(lp Ta right-parenthesis
534 .It \e*(rp Ta \*(rp Ta left-parenthesis
535 .It \e*(lq Ta \*(lq Ta left double-quote
536 .It \e*(rq Ta \*(rq Ta right double-quote
537 .It \e*(ua Ta \*(ua Ta up arrow
538 .It \e*(va Ta \*(va Ta up-down arrow
539 .It \e*(<= Ta \*(<= Ta less-than-equal
540 .It \e*(>= Ta \*(>= Ta greater-than-equal
541 .It \e*(aa Ta \*(aa Ta acute
542 .It \e*(ga Ta \*(ga Ta grave
543 .El
544 .
545 .
546 .Sh COMPATIBILITY
547 This section documents compatibility of
548 .Nm
549 with older or existing versions of
550 .Xr groff 1 .
551 .
552 .Pp
553 The following render differently in
554 .Fl T Ns Ar ascii
555 output mode:
556 .Bd -ragged -offset indent
557 \e(ss, \e(nm, \e(nb, \e(nc, \e(ib, \e(ip, \e(pp, \e[sum], \e[product],
558 \e[coproduct], \e(gr, \e(-h, \e(a.
559 .Ed
560 .
561 .Pp
562 The following render differently in
563 .Fl T Ns Ar html
564 output mode:
565 .Bd -ragged -offset indent
566 \e(~=, \e(nb, \e(nc
567 .Ed
568 .
569 .Pp
570 Finally, the following have been omitted by being poorly documented or
571 having no known representation:
572 .Bd -ragged -offset indent
573 \e[radicalex], \e[sqrtex], \e(ru
574 .Ed
575 .
576 .
577 .Sh SEE ALSO
578 .Xr mandoc 1
579 .
580 .
581 .Sh STANDARDS
582 .Rs
583 .%A The Unicode Consortium
584 .%T The Unicode Standard: Worldwide Character Encoding, Version 5.2
585 .%D 1991
586 .Re
587 .Rs
588 .%A W3C
589 .%T HTML 4.01 Specification
590 .%D December, 1999
591 .Re
592 .
593 .
594 .Sh AUTHORS
595 The
596 .Nm
597 utility was written by
598 .An Kristaps Dzonsons Aq kristaps@kth.se .