1 <!ENTITY % inline "#PCDATA | emph | strong | code | remark | sub | sup | label | ref | page | reference | LaTeX">
3 <!ENTITY % block "para | quote | itemize | enumerate | verbatim | footnote | picture | include | table">
5 <!ELEMENT doc (book | article | report)>
10 <!ELEMENT book (titlepage?, toc?, (chapter|include)*)>
11 <!ELEMENT article (titlepage?, toc?, (section|include)*)>
12 <!ELEMENT report (titlepage?, toc?, (chapter|include)*)>
14 <!ELEMENT titlepage (title, subtitle*, author+, date?, docinfo?, abstract?)>
16 <!ELEMENT title (%inline;)*>
17 <!ELEMENT subtitle (%inline;)*>
18 <!ELEMENT author (%inline;)*>
19 <!ELEMENT date (%inline;)*>
20 <!ELEMENT docinfo (infoitem)+>
21 <!ELEMENT infoitem (%inline;)*>
26 <!ELEMENT abstract (%inline;)*>
30 <!-- Document structure: chapters and sections -->
32 <!ELEMENT chapter (heading, (%block;)*, section*)>
33 <!ELEMENT section (heading, (%block;)*, subsection*)>
34 <!ELEMENT subsection (heading, (%block;)*, subsubsection*)>
35 <!ELEMENT subsubsection (heading, (%block;)*, paragraph*)>
36 <!ELEMENT paragraph (heading, (%block;)*, subparagraph*)>
37 <!ELEMENT subparagraph (heading, (%block;)*)>
38 <!ELEMENT heading (%inline;)*>
40 <!-- Block level content -->
42 <!ELEMENT para (%inline;|%block;)*>
43 <!ELEMENT quote (%inline;|%block;)*>
44 <!ELEMENT itemize (item)*>
45 <!ELEMENT enumerate (item)*>
46 <!ELEMENT item (%inline;|%block;)*>
47 <!ELEMENT verbatim (#PCDATA)>
48 <!ELEMENT footnote (%inline;)*>
50 <!-- Inline content: type styles -->
52 <!ELEMENT emph (%inline;)*>
53 <!ELEMENT strong (%inline;)*>
54 <!ELEMENT code (%inline;)*>
55 <!ELEMENT remark (%inline;)*>
56 <!ELEMENT sub (%inline;)*>
57 <!ELEMENT sup (%inline;)*>
60 <!-- Internal and external references -->
62 <!ELEMENT label EMPTY>
67 <!ELEMENT ref (%inline;)*>
72 <!ELEMENT page (%inline;)*>
77 <!ELEMENT reference (%inline;)*>
80 xml:link CDATA #IMPLIED
85 <!ELEMENT table (thead?,row)+>
87 <!ELEMENT thead (col)+>
88 <!ELEMENT col (%inline;|%block;)*>
94 <!ELEMENT picture EMPTY>
101 <!ELEMENT include EMPTY>
106 <!ELEMENT LaTeX EMPTY>
108 command CDATA #REQUIRED
114 The entities define most of the well known unicode characters
118 <!ENTITY nbsp " "> <!-- no-break space = non-breaking space,
120 <!ENTITY iexcl "¡"> <!-- inverted exclamation mark, U+00A1 ISOnum -->
121 <!ENTITY cent "¢"> <!-- cent sign, U+00A2 ISOnum -->
122 <!ENTITY pound "£"> <!-- pound sign, U+00A3 ISOnum -->
123 <!ENTITY curren "¤"> <!-- currency sign, U+00A4 ISOnum -->
124 <!ENTITY yen "¥"> <!-- yen sign = yuan sign, U+00A5 ISOnum -->
125 <!ENTITY brvbar "¦"> <!-- broken bar = broken vertical bar,
127 <!ENTITY sect "§"> <!-- section sign, U+00A7 ISOnum -->
128 <!ENTITY uml "¨"> <!-- diaeresis = spacing diaeresis,
130 <!ENTITY copy "©"> <!-- copyright sign, U+00A9 ISOnum -->
131 <!ENTITY ordf "ª"> <!-- feminine ordinal indicator, U+00AA ISOnum -->
132 <!ENTITY laquo "«"> <!-- left-pointing double angle quotation mark
133 = left pointing guillemet, U+00AB ISOnum -->
134 <!ENTITY not "¬"> <!-- not sign, U+00AC ISOnum -->
135 <!ENTITY shy "­"> <!-- soft hyphen = discretionary hyphen,
137 <!ENTITY reg "®"> <!-- registered sign = registered trade mark sign,
139 <!ENTITY macr "¯"> <!-- macron = spacing macron = overline
140 = APL overbar, U+00AF ISOdia -->
141 <!ENTITY deg "°"> <!-- degree sign, U+00B0 ISOnum -->
142 <!ENTITY plusmn "±"> <!-- plus-minus sign = plus-or-minus sign,
144 <!ENTITY sup2 "²"> <!-- superscript two = superscript digit two
145 = squared, U+00B2 ISOnum -->
146 <!ENTITY sup3 "³"> <!-- superscript three = superscript digit three
147 = cubed, U+00B3 ISOnum -->
148 <!ENTITY acute "´"> <!-- acute accent = spacing acute,
150 <!ENTITY micro "µ"> <!-- micro sign, U+00B5 ISOnum -->
151 <!ENTITY para "¶"> <!-- pilcrow sign = paragraph sign,
153 <!ENTITY middot "·"> <!-- middle dot = Georgian comma
154 = Greek middle dot, U+00B7 ISOnum -->
155 <!ENTITY cedil "¸"> <!-- cedilla = spacing cedilla, U+00B8 ISOdia -->
156 <!ENTITY sup1 "¹"> <!-- superscript one = superscript digit one,
158 <!ENTITY ordm "º"> <!-- masculine ordinal indicator,
160 <!ENTITY raquo "»"> <!-- right-pointing double angle quotation mark
161 = right pointing guillemet, U+00BB ISOnum -->
162 <!ENTITY frac14 "¼"> <!-- vulgar fraction one quarter
163 = fraction one quarter, U+00BC ISOnum -->
164 <!ENTITY frac12 "½"> <!-- vulgar fraction one half
165 = fraction one half, U+00BD ISOnum -->
166 <!ENTITY frac34 "¾"> <!-- vulgar fraction three quarters
167 = fraction three quarters, U+00BE ISOnum -->
168 <!ENTITY iquest "¿"> <!-- inverted question mark
169 = turned question mark, U+00BF ISOnum -->
170 <!ENTITY Agrave "À"> <!-- latin capital letter A with grave
171 = latin capital letter A grave,
173 <!ENTITY Aacute "Á"> <!-- latin capital letter A with acute,
175 <!ENTITY Acirc "Â"> <!-- latin capital letter A with circumflex,
177 <!ENTITY Atilde "Ã"> <!-- latin capital letter A with tilde,
179 <!ENTITY Auml "Ä"> <!-- latin capital letter A with diaeresis,
181 <!ENTITY Aring "Å"> <!-- latin capital letter A with ring above
182 = latin capital letter A ring,
184 <!ENTITY AElig "Æ"> <!-- latin capital letter AE
185 = latin capital ligature AE,
187 <!ENTITY Ccedil "Ç"> <!-- latin capital letter C with cedilla,
189 <!ENTITY Egrave "È"> <!-- latin capital letter E with grave,
191 <!ENTITY Eacute "É"> <!-- latin capital letter E with acute,
193 <!ENTITY Ecirc "Ê"> <!-- latin capital letter E with circumflex,
195 <!ENTITY Euml "Ë"> <!-- latin capital letter E with diaeresis,
197 <!ENTITY Igrave "Ì"> <!-- latin capital letter I with grave,
199 <!ENTITY Iacute "Í"> <!-- latin capital letter I with acute,
201 <!ENTITY Icirc "Î"> <!-- latin capital letter I with circumflex,
203 <!ENTITY Iuml "Ï"> <!-- latin capital letter I with diaeresis,
205 <!ENTITY ETH "Ð"> <!-- latin capital letter ETH, U+00D0 ISOlat1 -->
206 <!ENTITY Ntilde "Ñ"> <!-- latin capital letter N with tilde,
208 <!ENTITY Ograve "Ò"> <!-- latin capital letter O with grave,
210 <!ENTITY Oacute "Ó"> <!-- latin capital letter O with acute,
212 <!ENTITY Ocirc "Ô"> <!-- latin capital letter O with circumflex,
214 <!ENTITY Otilde "Õ"> <!-- latin capital letter O with tilde,
216 <!ENTITY Ouml "Ö"> <!-- latin capital letter O with diaeresis,
218 <!ENTITY times "×"> <!-- multiplication sign, U+00D7 ISOnum -->
219 <!ENTITY Oslash "Ø"> <!-- latin capital letter O with stroke
220 = latin capital letter O slash,
222 <!ENTITY Ugrave "Ù"> <!-- latin capital letter U with grave,
224 <!ENTITY Uacute "Ú"> <!-- latin capital letter U with acute,
226 <!ENTITY Ucirc "Û"> <!-- latin capital letter U with circumflex,
228 <!ENTITY Uuml "Ü"> <!-- latin capital letter U with diaeresis,
230 <!ENTITY Yacute "Ý"> <!-- latin capital letter Y with acute,
232 <!ENTITY THORN "Þ"> <!-- latin capital letter THORN,
234 <!ENTITY szlig "ß"> <!-- latin small letter sharp s = ess-zed,
236 <!ENTITY agrave "à"> <!-- latin small letter a with grave
237 = latin small letter a grave,
239 <!ENTITY aacute "á"> <!-- latin small letter a with acute,
241 <!ENTITY acirc "â"> <!-- latin small letter a with circumflex,
243 <!ENTITY atilde "ã"> <!-- latin small letter a with tilde,
245 <!ENTITY auml "ä"> <!-- latin small letter a with diaeresis,
247 <!ENTITY aring "å"> <!-- latin small letter a with ring above
248 = latin small letter a ring,
250 <!ENTITY aelig "æ"> <!-- latin small letter ae
251 = latin small ligature ae, U+00E6 ISOlat1 -->
252 <!ENTITY ccedil "ç"> <!-- latin small letter c with cedilla,
254 <!ENTITY egrave "è"> <!-- latin small letter e with grave,
256 <!ENTITY eacute "é"> <!-- latin small letter e with acute,
258 <!ENTITY ecirc "ê"> <!-- latin small letter e with circumflex,
260 <!ENTITY euml "ë"> <!-- latin small letter e with diaeresis,
262 <!ENTITY igrave "ì"> <!-- latin small letter i with grave,
264 <!ENTITY iacute "í"> <!-- latin small letter i with acute,
266 <!ENTITY icirc "î"> <!-- latin small letter i with circumflex,
268 <!ENTITY iuml "ï"> <!-- latin small letter i with diaeresis,
270 <!ENTITY eth "ð"> <!-- latin small letter eth, U+00F0 ISOlat1 -->
271 <!ENTITY ntilde "ñ"> <!-- latin small letter n with tilde,
273 <!ENTITY ograve "ò"> <!-- latin small letter o with grave,
275 <!ENTITY oacute "ó"> <!-- latin small letter o with acute,
277 <!ENTITY ocirc "ô"> <!-- latin small letter o with circumflex,
279 <!ENTITY otilde "õ"> <!-- latin small letter o with tilde,
281 <!ENTITY ouml "ö"> <!-- latin small letter o with diaeresis,
283 <!ENTITY divide "÷"> <!-- division sign, U+00F7 ISOnum -->
284 <!ENTITY oslash "ø"> <!-- latin small letter o with stroke,
285 = latin small letter o slash,
287 <!ENTITY ugrave "ù"> <!-- latin small letter u with grave,
289 <!ENTITY uacute "ú"> <!-- latin small letter u with acute,
291 <!ENTITY ucirc "û"> <!-- latin small letter u with circumflex,
293 <!ENTITY uuml "ü"> <!-- latin small letter u with diaeresis,
295 <!ENTITY yacute "ý"> <!-- latin small letter y with acute,
297 <!ENTITY thorn "þ"> <!-- latin small letter thorn with,
299 <!ENTITY yuml "ÿ"> <!-- latin small letter y with diaeresis,
302 <!-- Latin Extended-A -->
303 <!ENTITY OElig "Œ"> <!-- latin capital ligature OE,
305 <!ENTITY oelig "œ"> <!-- latin small ligature oe, U+0153 ISOlat2 -->
306 <!-- ligature is a misnomer, this is a separate character in some languages -->
307 <!ENTITY Scaron "Š"> <!-- latin capital letter S with caron,
309 <!ENTITY scaron "š"> <!-- latin small letter s with caron,
311 <!ENTITY Yuml "Ÿ"> <!-- latin capital letter Y with diaeresis,
315 <!ENTITY Alpha "Α"> <!-- greek capital letter alpha, U+0391 -->
316 <!ENTITY Beta "Β"> <!-- greek capital letter beta, U+0392 -->
317 <!ENTITY Gamma "Γ"> <!-- greek capital letter gamma,
319 <!ENTITY Delta "Δ"> <!-- greek capital letter delta,
321 <!ENTITY Epsilon "Ε"> <!-- greek capital letter epsilon, U+0395 -->
322 <!ENTITY Zeta "Ζ"> <!-- greek capital letter zeta, U+0396 -->
323 <!ENTITY Eta "Η"> <!-- greek capital letter eta, U+0397 -->
324 <!ENTITY Theta "Θ"> <!-- greek capital letter theta,
326 <!ENTITY Iota "Ι"> <!-- greek capital letter iota, U+0399 -->
327 <!ENTITY Kappa "Κ"> <!-- greek capital letter kappa, U+039A -->
328 <!ENTITY Lambda "Λ"> <!-- greek capital letter lambda,
330 <!ENTITY Mu "Μ"> <!-- greek capital letter mu, U+039C -->
331 <!ENTITY Nu "Ν"> <!-- greek capital letter nu, U+039D -->
332 <!ENTITY Xi "Ξ"> <!-- greek capital letter xi, U+039E ISOgrk3 -->
333 <!ENTITY Omicron "Ο"> <!-- greek capital letter omicron, U+039F -->
334 <!ENTITY Pi "Π"> <!-- greek capital letter pi, U+03A0 ISOgrk3 -->
335 <!ENTITY Rho "Ρ"> <!-- greek capital letter rho, U+03A1 -->
336 <!-- there is no Sigmaf, and no U+03A2 character either -->
337 <!ENTITY Sigma "Σ"> <!-- greek capital letter sigma,
339 <!ENTITY Tau "Τ"> <!-- greek capital letter tau, U+03A4 -->
340 <!ENTITY Upsilon "Υ"> <!-- greek capital letter upsilon,
342 <!ENTITY Phi "Φ"> <!-- greek capital letter phi,
344 <!ENTITY Chi "Χ"> <!-- greek capital letter chi, U+03A7 -->
345 <!ENTITY Psi "Ψ"> <!-- greek capital letter psi,
347 <!ENTITY Omega "Ω"> <!-- greek capital letter omega,
350 <!ENTITY alpha "α"> <!-- greek small letter alpha,
352 <!ENTITY beta "β"> <!-- greek small letter beta, U+03B2 ISOgrk3 -->
353 <!ENTITY gamma "γ"> <!-- greek small letter gamma,
355 <!ENTITY delta "δ"> <!-- greek small letter delta,
357 <!ENTITY epsilon "ε"> <!-- greek small letter epsilon,
359 <!ENTITY zeta "ζ"> <!-- greek small letter zeta, U+03B6 ISOgrk3 -->
360 <!ENTITY eta "η"> <!-- greek small letter eta, U+03B7 ISOgrk3 -->
361 <!ENTITY theta "θ"> <!-- greek small letter theta,
363 <!ENTITY iota "ι"> <!-- greek small letter iota, U+03B9 ISOgrk3 -->
364 <!ENTITY kappa "κ"> <!-- greek small letter kappa,
366 <!ENTITY lambda "λ"> <!-- greek small letter lambda,
368 <!ENTITY mu "μ"> <!-- greek small letter mu, U+03BC ISOgrk3 -->
369 <!ENTITY nu "ν"> <!-- greek small letter nu, U+03BD ISOgrk3 -->
370 <!ENTITY xi "ξ"> <!-- greek small letter xi, U+03BE ISOgrk3 -->
371 <!ENTITY omicron "ο"> <!-- greek small letter omicron, U+03BF NEW -->
372 <!ENTITY pi "π"> <!-- greek small letter pi, U+03C0 ISOgrk3 -->
373 <!ENTITY rho "ρ"> <!-- greek small letter rho, U+03C1 ISOgrk3 -->
374 <!ENTITY sigmaf "ς"> <!-- greek small letter final sigma,
376 <!ENTITY sigma "σ"> <!-- greek small letter sigma,
378 <!ENTITY tau "τ"> <!-- greek small letter tau, U+03C4 ISOgrk3 -->
379 <!ENTITY upsilon "υ"> <!-- greek small letter upsilon,
381 <!ENTITY phi "φ"> <!-- greek small letter phi, U+03C6 ISOgrk3 -->
382 <!ENTITY chi "χ"> <!-- greek small letter chi, U+03C7 ISOgrk3 -->
383 <!ENTITY psi "ψ"> <!-- greek small letter psi, U+03C8 ISOgrk3 -->
384 <!ENTITY omega "ω"> <!-- greek small letter omega,
387 <!-- special symbols -->
389 <!ENTITY dagger "†"> <!-- dagger, U+2020 ISOpub -->
390 <!ENTITY Dagger "‡"> <!-- double dagger, U+2021 ISOpub -->
392 <!-- General Punctuation -->
393 <!ENTITY bull "•"> <!-- bullet = black small circle,
395 <!-- bullet is NOT the same as bullet operator, U+2219 -->
396 <!ENTITY hellip "…"> <!-- horizontal ellipsis = three dot leader,
398 <!ENTITY prime "′"> <!-- prime = minutes = feet, U+2032 ISOtech -->
399 <!ENTITY Prime "″"> <!-- double prime = seconds = inches,
401 <!ENTITY oline "‾"> <!-- overline = spacing overscore,
404 <!ENTITY euro "€"> <!-- euro sign, U+20AC NEW -->
406 <!-- Letterlike Symbols -->
407 <!ENTITY weierp "℘"> <!-- script capital P = power set
408 = Weierstrass p, U+2118 ISOamso -->
409 <!ENTITY image "ℑ"> <!-- blackletter capital I = imaginary part,
411 <!ENTITY real "ℜ"> <!-- blackletter capital R = real part symbol,
413 <!ENTITY trade "™"> <!-- trade mark sign, U+2122 ISOnum -->
414 <!ENTITY alefsym "ℵ"> <!-- alef symbol = first transfinite cardinal,
416 <!-- alef symbol is NOT the same as hebrew letter alef,
417 U+05D0 although the same glyph could be used to depict both characters -->
420 <!ENTITY larr "←"> <!-- leftwards arrow, U+2190 ISOnum -->
421 <!ENTITY uarr "↑"> <!-- upwards arrow, U+2191 ISOnum-->
422 <!ENTITY rarr "→"> <!-- rightwards arrow, U+2192 ISOnum -->
423 <!ENTITY darr "↓"> <!-- downwards arrow, U+2193 ISOnum -->
424 <!ENTITY harr "↔"> <!-- left right arrow, U+2194 ISOamsa -->
425 <!ENTITY crarr "↵"> <!-- downwards arrow with corner leftwards
426 = carriage return, U+21B5 NEW -->
427 <!ENTITY lArr "⇐"> <!-- leftwards double arrow, U+21D0 ISOtech -->
428 <!-- Unicode does not say that lArr is the same as the 'is implied by' arrow
429 but also does not have any other character for that function. So ? lArr can
430 be used for 'is implied by' as ISOtech suggests -->
431 <!ENTITY uArr "⇑"> <!-- upwards double arrow, U+21D1 ISOamsa -->
432 <!ENTITY rArr "⇒"> <!-- rightwards double arrow,
434 <!-- Unicode does not say this is the 'implies' character but does not have
435 another character with this function so ?
436 rArr can be used for 'implies' as ISOtech suggests -->
437 <!ENTITY dArr "⇓"> <!-- downwards double arrow, U+21D3 ISOamsa -->
438 <!ENTITY hArr "⇔"> <!-- left right double arrow,
441 <!-- Mathematical Operators -->
442 <!ENTITY forall "∀"> <!-- for all, U+2200 ISOtech -->
443 <!ENTITY part "∂"> <!-- partial differential, U+2202 ISOtech -->
444 <!ENTITY exist "∃"> <!-- there exists, U+2203 ISOtech -->
445 <!ENTITY empty "∅"> <!-- empty set = null set = diameter,
447 <!ENTITY nabla "∇"> <!-- nabla = backward difference,
449 <!ENTITY isin "∈"> <!-- element of, U+2208 ISOtech -->
450 <!ENTITY notin "∉"> <!-- not an element of, U+2209 ISOtech -->
451 <!ENTITY ni "∋"> <!-- contains as member, U+220B ISOtech -->
452 <!-- should there be a more memorable name than 'ni'? -->
453 <!ENTITY prod "∏"> <!-- n-ary product = product sign,
455 <!-- prod is NOT the same character as U+03A0 'greek capital letter pi' though
456 the same glyph might be used for both -->
457 <!ENTITY sum "∑"> <!-- n-ary sumation, U+2211 ISOamsb -->
458 <!-- sum is NOT the same character as U+03A3 'greek capital letter sigma'
459 though the same glyph might be used for both -->
460 <!ENTITY minus "−"> <!-- minus sign, U+2212 ISOtech -->
461 <!ENTITY lowast "∗"> <!-- asterisk operator, U+2217 ISOtech -->
462 <!ENTITY radic "√"> <!-- square root = radical sign,
464 <!ENTITY prop "∝"> <!-- proportional to, U+221D ISOtech -->
465 <!ENTITY infin "∞"> <!-- infinity, U+221E ISOtech -->
466 <!ENTITY ang "∠"> <!-- angle, U+2220 ISOamso -->
467 <!ENTITY and "∧"> <!-- logical and = wedge, U+2227 ISOtech -->
468 <!ENTITY or "∨"> <!-- logical or = vee, U+2228 ISOtech -->
469 <!ENTITY cap "∩"> <!-- intersection = cap, U+2229 ISOtech -->
470 <!ENTITY cup "∪"> <!-- union = cup, U+222A ISOtech -->
471 <!ENTITY int "∫"> <!-- integral, U+222B ISOtech -->
472 <!ENTITY there4 "∴"> <!-- therefore, U+2234 ISOtech -->
473 <!ENTITY sim "∼"> <!-- tilde operator = varies with = similar to,
475 <!-- tilde operator is NOT the same character as the tilde, U+007E,
476 although the same glyph might be used to represent both -->
477 <!ENTITY cong "≅"> <!-- approximately equal to, U+2245 ISOtech -->
478 <!ENTITY asymp "≈"> <!-- almost equal to = asymptotic to,
480 <!ENTITY ne "≠"> <!-- not equal to, U+2260 ISOtech -->
481 <!ENTITY equiv "≡"> <!-- identical to, U+2261 ISOtech -->
482 <!ENTITY le "≤"> <!-- less-than or equal to, U+2264 ISOtech -->
483 <!ENTITY ge "≥"> <!-- greater-than or equal to,
485 <!ENTITY sub "⊂"> <!-- subset of, U+2282 ISOtech -->
486 <!ENTITY sup "⊃"> <!-- superset of, U+2283 ISOtech -->
487 <!-- note that nsup, 'not a superset of, U+2283' is not covered by the Symbol
488 font encoding and is not included. Should it be, for symmetry?
490 <!ENTITY nsub "⊄"> <!-- not a subset of, U+2284 ISOamsn -->
491 <!ENTITY sube "⊆"> <!-- subset of or equal to, U+2286 ISOtech -->
492 <!ENTITY supe "⊇"> <!-- superset of or equal to,
494 <!ENTITY oplus "⊕"> <!-- circled plus = direct sum,
496 <!ENTITY otimes "⊗"> <!-- circled times = vector product,
498 <!ENTITY perp "⊥"> <!-- up tack = orthogonal to = perpendicular,
500 <!ENTITY sdot "⋅"> <!-- dot operator, U+22C5 ISOamsb -->
501 <!-- dot operator is NOT the same character as U+00B7 middle dot -->
503 <!-- Miscellaneous Technical -->
504 <!ENTITY lceil "⌈"> <!-- left ceiling = apl upstile,
506 <!ENTITY rceil "⌉"> <!-- right ceiling, U+2309 ISOamsc -->
507 <!ENTITY lfloor "⌊"> <!-- left floor = apl downstile,
509 <!ENTITY rfloor "⌋"> <!-- right floor, U+230B ISOamsc -->
510 <!ENTITY lang "〈"> <!-- left-pointing angle bracket = bra,
512 <!-- lang is NOT the same character as U+003C 'less than'
513 or U+2039 'single left-pointing angle quotation mark' -->
514 <!ENTITY rang "〉"> <!-- right-pointing angle bracket = ket,
516 <!-- rang is NOT the same character as U+003E 'greater than'
517 or U+203A 'single right-pointing angle quotation mark' -->
519 <!-- Geometric Shapes -->
520 <!ENTITY loz "◊"> <!-- lozenge, U+25CA ISOpub -->
522 <!-- Miscellaneous Symbols -->
523 <!ENTITY spades "♠"> <!-- black spade suit, U+2660 ISOpub -->
524 <!-- black here seems to mean filled as opposed to hollow -->
525 <!ENTITY clubs "♣"> <!-- black club suit = shamrock,
527 <!ENTITY hearts "♥"> <!-- black heart suit = valentine,
529 <!ENTITY diams "♦"> <!-- black diamond suit, U+2666 ISOpub -->