mandoc_char.7

   1 .\"     $Id: mandoc_char.7,v 1.25 2009/10/07 14:37:13 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 $Mdocdate: October 7 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 -compact -offset indent -column 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 .El
  95 .
  96 .Pp
  97 Lines:
  98 .Bl -compact -offset indent -column 10m 10m 10m
  99 .It Em Input Ta Em Rendered Ta Em Description
 100 .It \e(ba    Ta \(ba        Ta bar
 101 .It \e(br    Ta \(br        Ta box rule
 102 .It \e(ul    Ta \(ul        Ta underscore
 103 .It \e(rl    Ta \(rl        Ta overline
 104 .It \e(bb    Ta \(bb        Ta broken bar
 105 .It \e(sl    Ta \(sl        Ta forward slash
 106 .It \e(rs    Ta \(rs        Ta backward slash
 107 .El
 108 .
 109 .Pp
 110 Text markers:
 111 .Bl -compact -offset indent -column 10m 10m 10m
 112 .It Em Input Ta Em Rendered Ta Em Description
 113 .It \e(ci    Ta \(ci        Ta circle
 114 .It \e(bu    Ta \(bu        Ta bullet
 115 .It \e(dd    Ta \(dd        Ta double dagger
 116 .It \e(dg    Ta \(dg        Ta dagger
 117 .It \e(lz    Ta \(lz        Ta lozenge
 118 .It \e(sq    Ta \(sq        Ta white square
 119 .It \e(ps    Ta \(ps        Ta paragraph
 120 .It \e(sc    Ta \(sc        Ta section
 121 .It \e(lh    Ta \(lh        Ta left hand
 122 .It \e(rh    Ta \(rh        Ta right hand
 123 .It \e(at    Ta \(at        Ta at
 124 .It \e(sh    Ta \(sh        Ta hash (pound)
 125 .It \e(CR    Ta \(CR        Ta carriage return
 126 .It \e(OK    Ta \(OK        Ta check mark
 127 .El
 128 .
 129 .Pp
 130 Legal symbols:
 131 .Bl -compact -offset indent -column 10m 10m 10m
 132 .It Em Input Ta Em Rendered Ta Em Description
 133 .It \e(co    Ta \(co        Ta copyright
 134 .It \e(rg    Ta \(rg        Ta registered
 135 .It \e(tm    Ta \(tm        Ta trademarked
 136 .El
 137 .
 138 .Pp
 139 Punctuation:
 140 .Bl -compact -offset indent -column 10m 10m 10m
 141 .It Em Input Ta Em Rendered Ta Em Description
 142 .It \e(em    Ta \(em        Ta em-dash
 143 .It \e(en    Ta \(en        Ta en-dash
 144 .It \e(hy    Ta \(hy        Ta hyphen
 145 .It \e\e     Ta \\          Ta back-slash
 146 .It \ee      Ta \e          Ta back-slash
 147 .It \e.      Ta \.          Ta period
 148 .It \e(r!    Ta \(r!        Ta upside-down exclamation
 149 .It \e(r?    Ta \(r?        Ta upside-down question
 150 .El
 151 .
 152 .Pp
 153 Quotes:
 154 .Bl -compact -offset indent -column 10m 10m 10m
 155 .It Em Input Ta Em Rendered Ta Em Description
 156 .It \e(Bq    Ta \(Bq        Ta right low double-quote
 157 .It \e(bq    Ta \(bq        Ta right low single-quote
 158 .It \e(lq    Ta \(lq        Ta left double-quote
 159 .It \e(rq    Ta \(rq        Ta right double-quote
 160 .It \e(oq    Ta \(oq        Ta left single-quote
 161 .It \e(cq    Ta \(cq        Ta right single-quote
 162 .It \e(aq    Ta \(aq        Ta apostrophe quote (text)
 163 .It \e(dq    Ta \(dq        Ta double quote (text)
 164 .It \e(Fo    Ta \(Fo        Ta left guillemet
 165 .It \e(Fc    Ta \(Fc        Ta right guillemet
 166 .It \e(fo    Ta \(fo        Ta left single guillemet
 167 .It \e(fc    Ta \(fc        Ta right single guillemet
 168 .El
 169 .
 170 .Pp
 171 Brackets:
 172 .Bl -compact -offset indent -column 10m 10m 10m
 173 .It Em Input Ta Em Rendered Ta Em Description
 174 .It \e(lB    Ta \(lB        Ta left bracket
 175 .It \e(rB    Ta \(rB        Ta right bracket
 176 .It \e(lC    Ta \(lC        Ta left brace
 177 .It \e(rC    Ta \(rC        Ta right brace
 178 .It \e(la    Ta \(la        Ta left angle
 179 .It \e(ra    Ta \(ra        Ta right angle
 180 .It \e(bv    Ta \(bv        Ta brace extension
 181 .It \e[braceex] Ta \[braceex] Ta brace extension
 182 .It \e[bracketlefttp] Ta \[bracketlefttp] Ta top-left hooked bracket
 183 .It \e[bracketleftbp] Ta \[bracketleftbp] Ta bottom-left hooked bracket
 184 .It \e[bracketleftex] Ta \[bracketleftex] Ta left hooked bracket extension
 185 .It \e[bracketrighttp] Ta \[bracketrighttp] Ta top-right hooked bracket
 186 .It \e[bracketrightbp] Ta \[bracketrightbp] Ta bottom-right hooked bracket
 187 .It \e[bracketrightex] Ta \[bracketrightex] Ta right hooked bracket extension
 188 .It \e(lt    Ta \(lt        Ta top-left hooked brace
 189 .It \e[bracelefttp] Ta \[bracelefttp] Ta top-left hooked brace
 190 .It \e(lk    Ta \(lk        Ta mid-left hooked brace
 191 .It \e[braceleftmid] Ta \[braceleftmid] Ta mid-left hooked brace
 192 .It \e(lb    Ta \(lb        Ta bottom-left hooked brace
 193 .It \e[braceleftbp] Ta \[braceleftbp] Ta bottom-left hooked brace
 194 .It \e[braceleftex] Ta \[braceleftex] Ta left hooked brace extension
 195 .It \e(rt    Ta \(rt        Ta top-left hooked brace
 196 .It \e[bracerighttp] Ta \[bracerighttp] Ta top-right hooked brace
 197 .It \e(rk    Ta \(rk        Ta mid-right hooked brace
 198 .It \e[bracerightmid] Ta \[bracerightmid] Ta mid-right hooked brace
 199 .It \e(rb    Ta \(rb        Ta bottom-right hooked brace
 200 .It \e[bracerightbp] Ta \[bracerightbp] Ta bottom-right hooked brace
 201 .It \e[bracerightex] Ta \[bracerightex] Ta right hooked brace extension
 202 .It \e[parenlefttp] Ta \[parenlefttp] Ta top-left hooked parenthesis
 203 .It \e[parenleftbp] Ta \[parenleftbp] Ta bottom-left hooked parenthesis
 204 .It \e[parenleftex] Ta \[parenleftex] Ta left hooked parenthesis extension
 205 .It \e[parenrighttp] Ta \[parenrighttp] Ta top-right hooked parenthesis
 206 .It \e[parenrightbp] Ta \[parenrightbp] Ta bottom-right hooked parenthesis
 207 .It \e[parenrightex] Ta \[parenrightex] Ta right hooked parenthesis extension
 208 .El
 209 .
 210 .Pp
 211 Arrows:
 212 .Bl -compact -offset indent -column 10m 10m 10m
 213 .It Em Input Ta Em Rendered Ta Em Description
 214 .It \e(<-    Ta \(<-        Ta left arrow
 215 .It \e(->    Ta \(->        Ta right arrow
 216 .It \e(<>    Ta \(<>        Ta left-right arrow
 217 .It \e(da    Ta \(da        Ta down arrow
 218 .It \e(ua    Ta \(ua        Ta up arrow
 219 .It \e(va    Ta \(va        Ta up-down arrow
 220 .It \e(lA    Ta \(lA        Ta left double-arrow
 221 .It \e(rA    Ta \(rA        Ta right double-arrow
 222 .It \e(hA    Ta \(hA        Ta left-right double-arrow
 223 .It \e(uA    Ta \(uA        Ta up double-arrow
 224 .It \e(dA    Ta \(dA        Ta down double-arrow
 225 .It \e(vA    Ta \(vA        Ta up-down double-arrow
 226 .El
 227 .
 228 .Pp
 229 Logical:
 230 .Bl -compact -offset indent -column 10m 10m 10m
 231 .It Em Input Ta Em Rendered Ta Em Description
 232 .It \e(AN    Ta \(AN        Ta logical and
 233 .It \e(OR    Ta \(OR        Ta logical or
 234 .It \e(no    Ta \(no        Ta logical not
 235 .It \e[tno]  Ta \[tno]      Ta logical not (text)
 236 .It \e(te    Ta \(te        Ta existential quantifier
 237 .It \e(fa    Ta \(fa        Ta universal quantifier
 238 .It \e(st    Ta \(st        Ta such that
 239 .It \e(tf    Ta \(tf        Ta therefore
 240 .It \e(3d    Ta \(3d        Ta therefore
 241 .It \e(or    Ta \(or        Ta bitwise or
 242 .El
 243 .
 244 .Pp
 245 Mathematical:
 246 .Bl -compact -offset indent -column 10m 10m 10m
 247 .It Em Input Ta Em Rendered Ta Em Description
 248 .It \e(pl    Ta \(pl        Ta plus
 249 .It \e(mi    Ta \(mi        Ta minus
 250 .It \e-      Ta \-          Ta minus (text)
 251 .It \e(-+    Ta \(-+        Ta minus-plus
 252 .It \e(+-    Ta \(+-        Ta plus-minus
 253 .It \e[t+-]  Ta \[t+-]      Ta plus-minus (text)
 254 .It \e(pc    Ta \(pc        Ta centre-dot
 255 .It \e(mu    Ta \(mu        Ta multiply
 256 .It \e[tmu]  Ta \[tmu]      Ta multiply (text)
 257 .It \e(c*    Ta \(c*        Ta circle-multiply
 258 .It \e(c+    Ta \(c+        Ta circle-plus
 259 .It \e(di    Ta \(di        Ta divide
 260 .It \e[tdi]  Ta \[tdi]      Ta divide (text)
 261 .It \e(f/    Ta \(f/        Ta fraction
 262 .It \e(**    Ta \(**        Ta asterisk
 263 .It \e(<=    Ta \(<=        Ta less-than-equal
 264 .It \e(>=    Ta \(>=        Ta greater-than-equal
 265 .It \e(<<    Ta \(<<        Ta much less
 266 .It \e(>>    Ta \(>>        Ta much greater
 267 .It \e(eq    Ta \(eq        Ta equal
 268 .It \e(!=    Ta \(!=        Ta not equal
 269 .It \e(==    Ta \(==        Ta equivalent
 270 .It \e(ne    Ta \(ne        Ta not equivalent
 271 .It \e(=~    Ta \(=~        Ta congruent
 272 .It \e(-~    Ta \(-~        Ta asymptotically congruent
 273 .It \e(ap    Ta \(ap        Ta asymptotically similar
 274 .It \e(~~    Ta \(~~        Ta approximately similar
 275 .It \e(~=    Ta \(~=        Ta approximately equal
 276 .It \e(pt    Ta \(pt        Ta proportionate
 277 .It \e(es    Ta \(es        Ta empty set
 278 .It \e(mo    Ta \(mo        Ta element
 279 .It \e(nm    Ta \(nm        Ta not element
 280 .It \e(sb    Ta \(sb        Ta proper subset
 281 .It \e(nb    Ta \(nb        Ta not subset
 282 .It \e(sp    Ta \(sp        Ta proper superset
 283 .It \e(nc    Ta \(nc        Ta not superset
 284 .It \e(ib    Ta \(ib        Ta reflexive subset
 285 .It \e(ip    Ta \(ip        Ta reflexive superset
 286 .It \e(ca    Ta \(ca        Ta intersection
 287 .It \e(cu    Ta \(cu        Ta union
 288 .It \e(/_    Ta \(/_        Ta angle
 289 .It \e(pp    Ta \(pp        Ta perpendicular
 290 .It \e(is    Ta \(is        Ta integral
 291 .It \e[integral] Ta \[integral] Ta integral
 292 .It \e[sum]    Ta \[sum]   Ta summation
 293 .It \e[product] Ta \[product] Ta product
 294 .It \e[coproduct] Ta \[coproduct] Ta coproduct
 295 .It \e(gr    Ta \(gr        Ta gradient
 296 .It \e(sr    Ta \(sr        Ta square root
 297 .It \e[sqrt] Ta \[sqrt]     Ta square root
 298 .It \e(lc    Ta \(lc        Ta left-ceiling
 299 .It \e(rc    Ta \(rc        Ta right-ceiling
 300 .It \e(lf    Ta \(lf        Ta left-floor
 301 .It \e(rf    Ta \(rf        Ta right-floor
 302 .It \e(if    Ta \(if        Ta infinity
 303 .It \e(Ah    Ta \(Ah        Ta aleph
 304 .It \e(Im    Ta \(Im        Ta imaginary
 305 .It \e(Re    Ta \(Re        Ta real
 306 .It \e(pd    Ta \(pd        Ta partial differential
 307 .It \e(-h    Ta \(-h        Ta Planck constant over 2\(*p
 308 .El
 309 .
 310 .Pp
 311 Ligatures:
 312 .Bl -compact -offset indent -column 10m 10m 10m
 313 .It Em Input Ta Em Rendered Ta Em Description
 314 .It \e(ff    Ta \(ff        Ta ff ligature
 315 .It \e(fi    Ta \(fi        Ta fi ligature
 316 .It \e(fl    Ta \(fl        Ta fl ligature
 317 .It \e(Fi    Ta \(Fi        Ta ffi ligature
 318 .It \e(Fl    Ta \(Fl        Ta ffl ligature
 319 .It \e(AE    Ta \(AE        Ta AE
 320 .It \e(ae    Ta \(ae        Ta ae
 321 .It \e(OE    Ta \(OE        Ta OE
 322 .It \e(oe    Ta \(oe        Ta oe
 323 .It \e(ss    Ta \(ss        Ta German eszett
 324 .It \e(IJ    Ta \(IJ        Ta IJ ligature
 325 .It \e(ij    Ta \(ij        Ta ij ligature
 326 .El
 327 .
 328 .Pp
 329 Accents:
 330 .Bl -compact -offset indent -column 10m 10m 10m
 331 .It Em Input Ta Em Rendered Ta Em Description
 332 .It \e(a"    Ta \(a"        Ta Hungarian umlaut
 333 .It \e(a-    Ta \(a-        Ta macron
 334 .It \e(a.    Ta \(a.        Ta dotted
 335 .It \e(a^    Ta \(a^        Ta circumflex
 336 .It \e(aa    Ta \(aa        Ta acute
 337 .It \e'      Ta \'          Ta acute
 338 .It \e(ga    Ta \(ga        Ta grave
 339 .It \e`      Ta \`          Ta grave
 340 .It \e(ab    Ta \(ab        Ta breve
 341 .It \e(ac    Ta \(ac        Ta cedilla
 342 .It \e(ad    Ta \(ad        Ta dieresis
 343 .It \e(ah    Ta \(ah        Ta caron
 344 .It \e(ao    Ta \(ao        Ta ring
 345 .It \e(a~    Ta \(a~        Ta tilde
 346 .It \e(ho    Ta \(ho        Ta ogonek
 347 .It \e(ha    Ta \(ha        Ta hat (text)
 348 .It \e(ti    Ta \(ti        Ta tilde (text)
 349 .El
 350 .
 351 .Pp
 352 Accented letters:
 353 .Bl -compact -offset indent -column 10m 10m 10m
 354 .It Em Input Ta Em Rendered Ta Em Description
 355 .It \e('A    Ta \('A        Ta acute A
 356 .It \e('E    Ta \('E        Ta acute E
 357 .It \e('I    Ta \('I        Ta acute I
 358 .It \e('O    Ta \('O        Ta acute O
 359 .It \e('U    Ta \('U        Ta acute U
 360 .It \e('a    Ta \('a        Ta acute a
 361 .It \e('e    Ta \('e        Ta acute e
 362 .It \e('i    Ta \('i        Ta acute i
 363 .It \e('o    Ta \('o        Ta acute o
 364 .It \e('u    Ta \('u        Ta acute u
 365 .It \e(`A    Ta \(`A        Ta grave A
 366 .It \e(`E    Ta \(`E        Ta grave E
 367 .It \e(`I    Ta \(`I        Ta grave I
 368 .It \e(`O    Ta \(`O        Ta grave O
 369 .It \e(`U    Ta \(`U        Ta grave U
 370 .It \e(`a    Ta \(`a        Ta grave a
 371 .It \e(`e    Ta \(`e        Ta grave e
 372 .It \e(`i    Ta \(`i        Ta grave i
 373 .It \e(`o    Ta \(`i        Ta grave o
 374 .It \e(`u    Ta \(`u        Ta grave u
 375 .It \e(~A    Ta \(~A        Ta tilde A
 376 .It \e(~N    Ta \(~N        Ta tilde N
 377 .It \e(~O    Ta \(~O        Ta tilde O
 378 .It \e(~a    Ta \(~a        Ta tilde a
 379 .It \e(~n    Ta \(~n        Ta tilde n
 380 .It \e(~o    Ta \(~o        Ta tilde o
 381 .It \e(:A    Ta \(:A        Ta dieresis A
 382 .It \e(:E    Ta \(:E        Ta dieresis E
 383 .It \e(:I    Ta \(:I        Ta dieresis I
 384 .It \e(:O    Ta \(:O        Ta dieresis O
 385 .It \e(:U    Ta \(:U        Ta dieresis U
 386 .It \e(:a    Ta \(:a        Ta dieresis a
 387 .It \e(:e    Ta \(:e        Ta dieresis e
 388 .It \e(:i    Ta \(:i        Ta dieresis i
 389 .It \e(:o    Ta \(:o        Ta dieresis o
 390 .It \e(:u    Ta \(:u        Ta dieresis u
 391 .It \e(:y    Ta \(:y        Ta dieresis y
 392 .It \e(^A    Ta \(^A        Ta circumflex A
 393 .It \e(^E    Ta \(^E        Ta circumflex E
 394 .It \e(^I    Ta \(^I        Ta circumflex I
 395 .It \e(^O    Ta \(^O        Ta circumflex O
 396 .It \e(^U    Ta \(^U        Ta circumflex U
 397 .It \e(^a    Ta \(^a        Ta circumflex a
 398 .It \e(^e    Ta \(^e        Ta circumflex e
 399 .It \e(^i    Ta \(^i        Ta circumflex i
 400 .It \e(^o    Ta \(^o        Ta circumflex o
 401 .It \e(^u    Ta \(^u        Ta circumflex u
 402 .It \e(,C    Ta \(,C        Ta cedilla C
 403 .It \e(,c    Ta \(,c        Ta cedilla c
 404 .It \e(/L    Ta \(/L        Ta stroke L
 405 .It \e(/l    Ta \(/l        Ta stroke l
 406 .It \e(/O    Ta \(/O        Ta stroke O
 407 .It \e(/o    Ta \(/o        Ta stroke o
 408 .It \e(oA    Ta \(oA        Ta ring A
 409 .It \e(oa    Ta \(oa        Ta ring a
 410 .El
 411 .
 412 .Pp
 413 Special letters:
 414 .Bl -compact -offset indent -column 10m 10m 10m
 415 .It Em Input Ta Em Rendered Ta Em Description
 416 .It \e(-D    Ta \(-D        Ta Eth
 417 .It \e(Sd    Ta \(Sd        Ta eth
 418 .It \e(TP    Ta \(TP        Ta Thorn
 419 .It \e(Tp    Ta \(Tp        Ta thorn
 420 .It \e(.i    Ta \(.i        Ta dotless i
 421 .It \e(.j    Ta \(.j        Ta dotless j
 422 .El
 423 .
 424 .Pp
 425 Currency:
 426 .Bl -compact -offset indent -column 10m 10m 10m
 427 .It Em Input Ta Em Rendered Ta Em Description
 428 .It \e(Do    Ta \(Do        Ta dollar
 429 .It \e(ct    Ta \(ct        Ta cent
 430 .It \e(Eu    Ta \(Eu        Ta Euro symbol
 431 .It \e(eu    Ta \(eu        Ta Euro symbol
 432 .It \e(Ye    Ta \(Ye        Ta yen
 433 .It \e(Po    Ta \(Po        Ta pound
 434 .It \e(Cs    Ta \(Cs        Ta Scandinavian
 435 .It \e(Fn    Ta \(Fn        Ta florin
 436 .El
 437 .
 438 .Pp
 439 Units:
 440 .Bl -compact -offset indent -column 10m 10m 10m
 441 .It Em Input Ta Em Rendered Ta Em Description
 442 .It \e(de    Ta \(de        Ta degree
 443 .It \e(%0    Ta \(%0        Ta per-thousand
 444 .It \e(fm    Ta \(fm        Ta minute
 445 .It \e(sd    Ta \(sd        Ta second
 446 .It \e(mc    Ta \(mc        Ta micro
 447 .El
 448 .
 449 .Pp
 450 Greek letters:
 451 .Bl -compact -offset indent -column 10m 10m 10m
 452 .It Em Input Ta Em Rendered Ta Em Description
 453 .It \e(*A    Ta \(*A        Ta Alpha
 454 .It \e(*B    Ta \(*B        Ta Beta
 455 .It \e(*G    Ta \(*G        Ta Gamma
 456 .It \e(*D    Ta \(*D        Ta Delta
 457 .It \e(*E    Ta \(*E        Ta Epsilon
 458 .It \e(*Z    Ta \(*Z        Ta Zeta
 459 .It \e(*Y    Ta \(*Y        Ta Eta
 460 .It \e(*H    Ta \(*H        Ta Theta
 461 .It \e(*I    Ta \(*I        Ta Iota
 462 .It \e(*K    Ta \(*K        Ta Kappa
 463 .It \e(*L    Ta \(*L        Ta Lambda
 464 .It \e(*M    Ta \(*M        Ta Mu
 465 .It \e(*N    Ta \(*N        Ta Nu
 466 .It \e(*C    Ta \(*C        Ta Xi
 467 .It \e(*O    Ta \(*O        Ta Omicron
 468 .It \e(*P    Ta \(*P        Ta Pi
 469 .It \e(*R    Ta \(*R        Ta Rho
 470 .It \e(*S    Ta \(*S        Ta Sigma
 471 .It \e(*T    Ta \(*T        Ta Tau
 472 .It \e(*U    Ta \(*U        Ta Upsilon
 473 .It \e(*F    Ta \(*F        Ta Phi
 474 .It \e(*X    Ta \(*X        Ta Chi
 475 .It \e(*Q    Ta \(*Q        Ta Psi
 476 .It \e(*W    Ta \(*W        Ta Omega
 477 .It \e(*a    Ta \(*a        Ta alpha
 478 .It \e(*b    Ta \(*b        Ta beta
 479 .It \e(*g    Ta \(*g        Ta gamma
 480 .It \e(*d    Ta \(*d        Ta delta
 481 .It \e(*e    Ta \(*e        Ta epsilon
 482 .It \e(*z    Ta \(*z        Ta zeta
 483 .It \e(*y    Ta \(*y        Ta eta
 484 .It \e(*h    Ta \(*h        Ta theta
 485 .It \e(*i    Ta \(*i        Ta iota
 486 .It \e(*k    Ta \(*k        Ta kappa
 487 .It \e(*l    Ta \(*l        Ta lambda
 488 .It \e(*m    Ta \(*m        Ta mu
 489 .It \e(*n    Ta \(*n        Ta nu
 490 .It \e(*c    Ta \(*c        Ta xi
 491 .It \e(*o    Ta \(*o        Ta omicron
 492 .It \e(*p    Ta \(*p        Ta pi
 493 .It \e(*r    Ta \(*r        Ta rho
 494 .It \e(*s    Ta \(*s        Ta sigma
 495 .It \e(*t    Ta \(*t        Ta tau
 496 .It \e(*u    Ta \(*u        Ta upsilon
 497 .It \e(*f    Ta \(*f        Ta phi
 498 .It \e(*x    Ta \(*x        Ta chi
 499 .It \e(*q    Ta \(*q        Ta psi
 500 .It \e(*w    Ta \(*w        Ta omega
 501 .It \e(+h    Ta \(+h        Ta theta variant
 502 .It \e(+f    Ta \(+f        Ta phi variant
 503 .It \e(+p    Ta \(+p        Ta pi variant
 504 .It \e(+e    Ta \(+e        Ta epsilon variant
 505 .It \e(ts    Ta \(ts        Ta sigma terminal
 506 .El
 507 .
 508 .
 509 .Sh PREDEFINED STRINGS
 510 These are not recommended for use, as they differ across
 511 implementations:
 512 .
 513 .Pp
 514 .Bl -compact -offset indent -column 10m 10m 10m
 515 .It Em Input Ta Em Rendered Ta Em Description
 516 .It \e*(Ba   Ta \*(Ba       Ta vertical bar
 517 .It \e*(Ne   Ta \*(Ne       Ta not equal
 518 .It \e*(Ge   Ta \*(Ge       Ta greater-than-equal
 519 .It \e*(Le   Ta \*(Le       Ta less-than-equal
 520 .It \e*(Gt   Ta \*(Gt       Ta greater-than
 521 .It \e*(Lt   Ta \*(Lt       Ta less-than
 522 .It \e*(Pm   Ta \*(Pm       Ta plus-minus
 523 .It \e*(If   Ta \*(If       Ta infinity
 524 .It \e*(Pi   Ta \*(Pi       Ta pi
 525 .It \e*(Na   Ta \*(Na       Ta NaN
 526 .It \e*(Am   Ta \*(Am       Ta ampersand
 527 .It \e*R     Ta \*R         Ta restricted mark
 528 .It \e*(Tm   Ta \*(Tm       Ta trade mark
 529 .It \e*q     Ta \*q         Ta double-quote
 530 .It \e*(Rq   Ta \*(Rq       Ta right-double-quote
 531 .It \e*(Lq   Ta \*(Lq       Ta left-double-quote
 532 .It \e*(lp   Ta \*(lp       Ta right-parenthesis
 533 .It \e*(rp   Ta \*(rp       Ta left-parenthesis
 534 .It \e*(lq   Ta \*(lq       Ta left double-quote
 535 .It \e*(rq   Ta \*(rq       Ta right double-quote
 536 .It \e*(ua   Ta \*(ua       Ta up arrow
 537 .It \e*(va   Ta \*(va       Ta up-down arrow
 538 .It \e*(<=   Ta \*(<=       Ta less-than-equal
 539 .It \e*(>=   Ta \*(>=       Ta greater-than-equal
 540 .It \e*(aa   Ta \*(aa       Ta acute
 541 .It \e*(ga   Ta \*(ga       Ta grave
 542 .El
 543 .
 544 .
 545 .Sh COMPATIBILITY
 546 This section documents compatibility of
 547 .Nm
 548 with older or existing versions of
 549 .Xr groff 1 .
 550 .
 551 .Pp
 552 The following render differently in
 553 .Fl T Ns Ar ascii
 554 output mode:
 555 .Bd -ragged -offset indent
 556 \e(ss, \e(nm, \e(nb, \e(nc, \e(ib, \e(ip, \e(pp, \e[sum], \e[product],
 557 \e[coproduct], \e(gr, \e(-h, \e(a.
 558 .Ed
 559 .
 560 .Pp
 561 The following render differently in
 562 .Fl T Ns Ar html
 563 output mode:
 564 .Bd -ragged -offset indent
 565 \e(~=, \e(nb, \e(nc
 566 .Ed
 567 .
 568 .Pp
 569 Finally, the following have been omitted by being poorly documented or
 570 having no known representation:
 571 .Bd -ragged -offset indent
 572 \e[radicalex], \e[sqrtex], \e(ru
 573 .Ed
 574 .
 575 .
 576 .Sh SEE ALSO
 577 .Xr mandoc 1
 578 .
 579 .
 580 .Sh AUTHORS
 581 The
 582 .Nm
 583 utility was written by
 584 .An Kristaps Dzonsons Aq kristaps@kth.se .