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1%D \module
2%D   [       file=lxml-ini,
3%D        version=2007.08.17,
4%D          title=\CONTEXT\ \XML\ Support,
5%D       subtitle=Initialization,
6%D         author=Hans Hagen,
7%D           date=\currentdate,
8%D      copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
9%C
10%C This module is part of the \CONTEXT\ macro||package and is
11%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
12%C details.
13
14%D Todo: auto apply setups (manage at lua end)
15%D Todo: manuak: \xmlinclusion \xmlinclusions
16
17\writestatus{loading}{ConTeXt XML Support / Initialization}
18
19%registerctxluafile{lxml-tab}{} % loader
20%registerctxluafile{lxml-lpt}{} % parser
21%registerctxluafile{lxml-xml}{} % xml finalizers
22%registerctxluafile{lxml-aux}{} % extras using parser
23%registerctxluafile{lxml-mis}{} % extras independent of parser
24\registerctxluafile{lxml-ent}{} % entity hacks
25\registerctxluafile{lxml-tex}{} % tex finalizers
26\registerctxluafile{lxml-dir}{} % ctx hacks
27\registerctxluafile{lxml-ini}{} % interface
28
29\unprotect
30
31% todo: { } mandate so that we can alias
32
33% undocumented:
34
35\def\ctxlxml                #1{\ctxlua{lxml.#1}}
36
37% for now indirect .. this will change when we have updated luatex (scan_argument)
38
39\def\xmlconcat          #1#2#3{\clf_xmlconcat     {#1}{#2}{\detokenize{#3}}}
40\def\xmlconcatrange #1#2#3#4#5{\clf_xmlconcatrange{#1}{#2}{#3}{#4}{\detokenize{#5}}}
41
42%D Maybe I should add \type {\unexpanded} here:
43
44\def\xmlloadfile  #1#2{\clf_xmlloadfile  {#1}{#2}{\directxmlparameter\c!compress}}
45\def\xmlloadbuffer#1#2{\clf_xmlloadbuffer{#1}{#2}{\directxmlparameter\c!compress}}
46\def\xmlloaddata  #1#2{\clf_xmlloaddata  {#1}{#2}{\directxmlparameter\c!compress}}
47
48\let\xmlload\xmlloadfile
49
50% aliased
51
52%let\xmlall                    \clf_xmlall
53%let\xmlatt                    \clf_xmlatt
54%let\xmlattdef                 \clf_xmlattdef
55%let\xmlattribute              \clf_xmlattribute
56%let\xmlattributedef           \clf_xmlattributedef
57%let\xmlbadinclusions          \clf_xmlbadinclusions
58%let\xmlchainatt               \clf_xmlchainatt
59%let\xmlchainattdef            \clf_xmlchainattdef
60%let\xmlchecknamespace         \clf_xmlchecknamespace
61%let\xmlcommand                \clf_xmlcommand
62%let\xmlcontext                \clf_xmlcontext
63%let\xmlcount                  \clf_xmlcount
64%let\xmldelete                 \clf_xmldelete
65%let\xmldirect                 \clf_xmldirect             % in loops, not dt but root
66%let\xmldirectives             \clf_xmldirectives
67%let\xmldirectivesafter        \clf_xmldirectivesafter
68%let\xmldirectivesbefore       \clf_xmldirectivesbefore
69%let\xmldisplayverbatim        \clf_xmldisplayverbatim
70%let\xmlelement                \clf_xmlelement
71%let\xmlfilter                 \clf_xmlfilter
72%let\xmlfilterlist             \clf_xmlfilterlist
73%let\xmlfirst                  \clf_xmlfirst
74%let\xmlflush                  \clf_xmlflush
75%let\xmlflushcontext           \clf_xmlflushcontext
76%let\xmlflushlinewise          \clf_xmlflushlinewise
77%let\xmlflushpure              \clf_xmlflushpure
78%let\xmlflushspacewise         \clf_xmlflushspacewise
79%let\xmlflushtext              \clf_xmlflushtext
80%let\xmlfunction               \clf_xmlfunction
81%let\xmlinclude                \clf_xmlinclude
82%let\xmlincludeoptions         \clf_xmlincludeoptions
83%let\xmlinclusion              \clf_xmlinclusion
84%let\xmlinclusionbase          \clf_xmlinclusionbase
85%let\xmlinclusions             \clf_xmlinclusions
86%let\xmlindex                  \clf_xmlindex
87%let\xmlinlineverbatim         \clf_xmlinlineverbatim
88%let\xmllast                   \clf_xmllast
89%let\xmllastatt                \clf_xmllastatt
90%let\xmllastmatch              \clf_xmllastmatch
91%let\xmllastpar                \clf_xmllastpar
92%let\xmlloaddirectives         \clf_xmlloaddirectives
93%let\xmlmain                   \clf_xmlmain
94%let\xmlmatch                  \clf_xmlmatch
95%let\xmlname                   \clf_xmlname
96%let\xmlnamespace              \clf_xmlnamespace
97%let\xmlnonspace               \clf_xmlnonspace
98%let\xmlpar                    \clf_xmlpar
99%let\xmlparam                  \clf_xmlparam
100%let\xmlpath                   \clf_xmlpath
101%let\xmlpopmatch               \clf_xmlpopmatch
102%let\xmlpos                    \clf_xmlpos
103%let\xmlpure                   \clf_xmlpure
104%let\xmlpushmatch              \clf_xmlpushmatch
105%let\xmlraw                    \clf_xmlraw
106%let\xmlrefatt                 \clf_xmlrefatt
107%let\xmlregisterns             \clf_xmlregisterns         % document
108%let\xmlremapname              \clf_xmlremapname          % element
109%let\xmlremapnamespace         \clf_xmlremapnamespace     % document
110%let\xmlsave                   \clf_xmlsave
111%let\xmlsetatt                 \clf_xmlsetatt
112%let\xmlsetattribute           \clf_xmlsetattribute
113%let\xmlsetpar                 \clf_xmlsetpar
114%let\xmlsetparam               \clf_xmlsetparam
115%let\xmlsetsetup               \clf_xmlsetsetup
116%let\xmlsnippet                \clf_xmlsnippet
117%let\xmlstrip                  \clf_xmlstrip
118%let\xmlstripanywhere          \clf_xmlstripanywhere
119%let\xmlstripnolines           \clf_xmlstripnolines
120%let\xmlstripped               \clf_xmlstripped
121%let\xmlstrippednolines        \clf_xmlstrippednolines
122%let\xmltag                    \clf_xmltag
123%let\xmltext                   \clf_xmltext
124%let\xmltobuffer               \clf_xmltobuffer           % id pattern name
125%let\xmltobuffertextonly       \clf_xmltobuffertextonly   % id pattern name
126%let\xmltobufferverbose        \clf_xmltobufferverbose    % id pattern name
127%let\xmltofile                 \clf_xmltofile             % id pattern filename
128%let\xmltoparameters           \clf_xmltoparameters
129%let\xmlverbatim               \clf_xmlverbatim
130
131\let\xmlposition               \xmlindex
132
133\unexpanded\def\xmlinfo#1{\hbox{\ttxx[\xmlname{#1}]}}
134\unexpanded\def\xmlshow#1{\startpacked\ttx\xmlverbatim{#1}\stoppacked}
135
136% the next one is handy for mode runs because it enforces a consistent
137% #1 indexing (needed when using \xmltext{main:123}{...} like calls
138
139%let\xmladdindex               \clf_xmladdindex
140
141% we need to pass the last argument as function, so
142
143\unexpanded\def\xmlsetfunction#1#2#3{\ctxcommand{xmlsetfunction("#1",\!!bs#2\!!es,#3)}}
144
145% goodie:
146
147\def\xmltempbuffername{xml-temp}
148
149\unexpanded\def\prettyprintbuffer#1#2% only used here
150  {\ifdefined\scitebuffer
151     \scitebuffer[#2][#1]%
152   \else
153     \typebuffer[#1][\c!option=#2]%
154   \fi}
155
156\unexpanded\def\xmlprettyprint#1#2%
157  {\xmltobufferverbose{#1}{.}{\xmltempbuffername}%
158   \prettyprintbuffer\xmltempbuffername{#2}}
159
160\unexpanded\def\xmlprettyprinttext#1#2%
161  {\xmltobuffertextonly{#1}{.}{\xmltempbuffername}%
162   \prettyprintbuffer\xmltempbuffername{#2}}
163
164\unexpanded\def\inlineprettyprintbuffer#1#2% only used here
165  {\ifdefined\sciteinlinebuffer
166     \sciteinlinebuffer[#2][#1]%
167   \else
168     \typeinlinebuffer[#1][\c!option=#2]%
169   \fi}
170
171\unexpanded\def\xmlinlineprettyprint#1#2%
172  {\xmltobufferverbose{#1}{.}{\xmltempbuffername}%
173   \inlineprettyprintbuffer\xmltempbuffername{#2}}
174
175\unexpanded\def\xmlinlineprettyprinttext#1#2%
176  {\xmltobuffertextonly{#1}{.}{\xmltempbuffername}%
177   \inlineprettyprintbuffer\xmltempbuffername{#2}}
178
179% kind of special:
180
181\let\xmlstartraw\clf_xmlstartraw
182\let\xmlstopraw \clf_xmlstopraw
183
184\let\startxmlraw\clf_xmlstartraw
185\let\stopxmlraw \clf_xmlstopraw
186
187% these are expandable! todo: \xmldoifelseattribute
188
189%let\xmldoif              \clf_xmldoif
190%let\xmldoifnot           \clf_xmldoifnot
191%let\xmldoifelse          \clf_xmldoifelse
192%let\xmldoiftext          \clf_xmldoiftext
193%let\xmldoifnottext       \clf_xmldoifnottext
194%let\xmldoifelsetext      \clf_xmldoifelsetext
195
196%let\xmldoifatt           \clf_xmldoifatt
197%let\xmldoifnotatt        \clf_xmldoifnotatt
198%let\xmldoifelseatt       \clf_xmldoifelseatt
199
200%let\xmldoifempty         \clf_xmldoifempty
201%let\xmldoifnotempty      \clf_xmldoifnotempty
202%let\xmldoifelseempty     \clf_xmldoifelseempty
203%let\xmldoifselfempty     \clf_xmldoifselfempty
204%let\xmldoifnotselfempty  \clf_xmldoifnotselfempty
205%let\xmldoifelseselfempty \clf_xmldoifelseselfempty
206
207\let\xmldoiftextelse      \xmldoifelsetext
208\let\xmldoifemptyelse     \xmldoifelseempty
209\let\xmldoifselfemptyelse \xmldoifelseselfempty
210
211% \startxmlsetups xml:include
212%     \xmlinclude{main}{include}{filename|href}
213% \stopxmlsetups
214%
215% \xmlprependsetup{xml:include}
216
217% \let\xmlgrab\xmlsetsetup % obsolete
218% \let\xmlself\s!unknown   % obsolete
219
220\let\xmlsetup\setupwithargumentswapped
221\let\xmls    \setupwithargumentswapped % hardly any faster
222\let\xmlw    \setupwithargument        % hardly any faster
223
224% todo: 1:xml:whatever always before 3:xml:something
225
226\unexpanded\def\xmlprependsetup            #1{\clf_xmlprependsetup{*}{#1}}
227\unexpanded\def\xmlappendsetup             #1{\clf_xmlappendsetup {*}{#1}}
228\unexpanded\def\xmlbeforesetup           #1#2{\clf_xmlbeforesetup {*}{#1}{#2}}
229\unexpanded\def\xmlaftersetup            #1#2{\clf_xmlaftersetup  {*}{#1}{#2}}
230\unexpanded\def\xmlremovesetup             #1{\clf_xmlremovesetup {*}{#1}}
231\unexpanded\def\xmlresetsetups               {\clf_xmlresetsetups {*}}
232
233\unexpanded\def\xmlprependdocumentsetup  #1#2{\clf_xmlprependsetup{#1}{#2}}
234\unexpanded\def\xmlappenddocumentsetup   #1#2{\clf_xmlappendsetup {#1}{#2}}
235\unexpanded\def\xmlbeforedocumentsetup #1#2#3{\clf_xmlbeforesetup {#1}{#2}{#3}}
236\unexpanded\def\xmlafterdocumentsetup  #1#2#3{\clf_xmlaftersetup  {#1}{#2}{#3}}
237\unexpanded\def\xmlremovedocumentsetup   #1#2{\clf_xmlremovesetup {#1}{#2}}
238\unexpanded\def\xmlresetdocumentsetups     #1{\clf_xmlresetsetups {#1}}
239
240\unexpanded\def\xmlflushsetups             #1{\clf_xmlflushsetups {#1}{*}{}}   % #1 == id where to apply *
241\unexpanded\def\xmlflushdocumentsetups   #1#2{\clf_xmlflushsetups {#1}{*}{#2}} % #1 == id where to apply * and #2
242
243\let\xmlregistersetup        \xmlappendsetup
244\let\xmlregisterdocumentsetup\xmlappenddocumentsetup
245
246\def\xmldocument{main}
247
248\unexpanded\def\xmlregisteredsetups
249  {\xmlstarttiming
250   \xmlflushsetups\xmldocument
251   \xmldefaulttotext\xmldocument % after include
252   \xmlstoptiming}
253
254\unexpanded\def\xmlregistereddocumentsetups#1#2% id setups
255  {\xmlstarttiming
256   % todo: test for duplicates !
257   \xmlflushdocumentsetups{#1}{#2}%
258   \xmldefaulttotext{#1}% after include
259   \xmlstoptiming}
260
261\unexpanded\def\xmlstarttiming{\clf_xmlstarttiming} % undocumented
262\unexpanded\def\xmlstoptiming {\clf_xmlstoptiming}  % undocumented
263
264\def\lxml_process#1#2#3#4#5% flag \loader id name what initializersetup
265  {\begingroup
266   \edef\xmldocument{#3}% #2 can be \xmldocument and set as such
267   %xmlpushdocument{#3}%
268   #2{#3}{#4}%
269   \setcatcodetable\notcatcodes
270   \doifelsenothing{#5}%
271     {\xmlsetup{#3}{xml:process}}%
272     {\xmlsetup{#3}{#5}}%
273   %xmlpopdocument
274   \endgroup}
275
276\unexpanded\def\xmlprocessfile      {\lxml_process\plusone  \xmlload}
277\unexpanded\def\xmlprocessdata      {\lxml_process\zerocount\xmlloaddata}
278\unexpanded\def\xmlprocessbuffer    {\lxml_process\zerocount\xmlloadbuffer}
279           \let\xmlprocess           \xmlprocessfile
280
281\startxmlsetups xml:flush
282    \xmlflush{#1}
283\stopxmlsetups
284
285\startxmlsetups xml:process
286    \xmlregistereddocumentsetups{#1}{#1}
287    \xmlmain{#1}
288\stopxmlsetups
289
290\unexpanded\def\xmlloadonly#1#2#3%
291  {\xmlload{#1}{#2}%
292   \xmlregistereddocumentsetups{#1}{#3}}
293
294% replaced by concat
295%
296% \unexpanded\def\xmlconnect#1#2#3% inefficient
297%   {\scratchcounter\xmlcount{#1}{#2}\relax
298%    \ifcase\scratchcounter \or
299%      \xmlall{#1}{#2}%
300%    \else
301%      \dorecurse \scratchcounter
302%        {\ifnum\recurselevel>\plusone#3\fi
303%         \xmlidx{#1}{#2}\recurselevel}%
304%    \fi}
305
306\unexpanded\def\xmlcdataobeyedline {\obeyedline}
307\unexpanded\def\xmlcdataobeyedspace{\strut\obeyedspace}
308\unexpanded\def\xmlcdatabefore     {\begingroup\tt}
309\unexpanded\def\xmlcdataafter      {\endgroup}
310
311% verbatim (dodo:pre/post whitespace, maybe splot verbatim and
312% cdata commands), experimental:
313%
314% \xmlsetfunction{main}{verbatim}{lxml.displayverbatim}
315% \xmlsetfunction{main}{verb}    {lxml.inlineverbatim}
316
317% we use an xml: namespace so one has to define a suitable verbatim, say
318%
319% \definetyping[xml:verbatim][typing]
320%
321% this is experimental!
322
323\unexpanded\def\startxmldisplayverbatim
324  {\dosingleempty\lxml_start_display_verbatim}
325
326\let\stopxmldisplayverbatim\relax
327
328\def\lxml_start_display_verbatim[#1]%
329  {\startpacked
330   \edef\currenttyping{#1}%
331   \ifx\currenttyping\empty
332     \let\currenttyping\v!typing
333   \else % maybe test for existence
334     \edef\currenttyping{xml:\currenttyping}%
335   \fi
336   \unexpanded\def\stopxmldisplayverbatim
337     {\endofverbatimlines
338      \stoppacked}%
339   \doinitializeverbatim
340   \beginofverbatimlines}
341
342\unexpanded\def\startxmlinlineverbatim
343  {\dosingleempty\lxml_start_inline_verbatim}
344
345\let\stopxmlinlineverbatim\relax
346
347\unexpanded\def\lxml_start_inline_verbatim[#1]%
348  {\begingroup
349   \edef\currenttype{#1}%
350   \ifx\currenttype\empty
351     \let\currenttype\v!type
352   \else % maybe test for existence
353     \edef\currenttype{xml:\currenttype}%
354   \fi
355   \let\stopxmlinlineverbatim\endgroup
356   \doinitializeverbatim}
357
358% processing instructions
359
360\unexpanded\def\xmlinstalldirective#1#2%
361  {\clf_xmlinstalldirective{#1}{\csstring#2}}
362
363% an example:
364
365% <?context-tex-directive bgroup ?>
366
367\appendtoks
368    \xmlinstalldirective{tex}{xmltexcommand}%
369\to \everyjob
370
371\def\xmltexcommand#1{\begincsname#1\endcsname}
372
373% \def\xmlcontextdirective#1% kind class key value
374%   {\executeifdefined{xml#1directive}\gobblethreearguments}
375
376% setting up xml:
377%
378% \setupxml[\c!default=]        % mkiv only == text
379% \setupxml[\c!default=\v!none] % mkiv only, undefined -> hidden
380% \setupxml[\c!default=\v!text] % mkiv only, undefined -> text
381
382% \def\xmlctxdirective#1#2#3{\doif{#1}{clue}{\doif{#2}{page}}{\page[#3]}}
383
384\newconstant\xmlprocessingmode % 0=unset, 1=text, 2=hidden
385
386\installcorenamespace{xml}
387\installcorenamespace{xmldefaults}
388\installcorenamespace{xmlmapvalue}
389
390\installdirectcommandhandler \??xml {xml}
391
392\letvalue{\??xmldefaults\v!normal}\zerocount
393\letvalue{\??xmldefaults\v!none  }\zerocount
394\letvalue{\??xmldefaults\v!text  }\plusone
395\letvalue{\??xmldefaults\v!hidden}\plustwo
396
397\unexpanded\def\xmldefaulttotext
398  {\ifcase\xmlprocessingmode
399     \expandafter\gobbleoneargument       % 0 (none)
400   \or
401     \expandafter\clf_xmlsetcommandtotext % 1 (normal)
402   \or
403     \expandafter\clf_xmlsetcommandtonone % 2 (hidden)
404   \else
405     \expandafter\gobbleoneargument       %   (none)
406   \fi}
407
408\appendtoks
409    \xmlprocessingmode\executeifdefined{\??xmldefaults\directxmlparameter\c!default}\plusone
410\to \everysetupxml
411
412\setupxml
413  [\c!default=,          % flush all
414   \c!compress=\v!no,    % strip comment
415   \c!entities=\v!no]    % load big entity file
416
417\appendtoks
418    \doif{\directxmlparameter\c!entities}\v!yes\clf_xmlloadentities
419\to \everysetupxml
420
421\def\xmlmapvalue    #1#2#3{\setvalue{\??xmlmapvalue#1:#2}{#3}} % keep #3 to grab spaces
422\def\xmldoifelsevalue #1#2{\ifcsname\??xmlmapvalue#1:#2\endcsname\expandafter\firstoftwoarguments\else\expandafter\secondoftwoarguments\fi}
423
424\def\xmlvalue#1#2% #3
425  {\ifcsname\??xmlmapvalue#1:#2\endcsname
426     \expandafter\expandafter\expandafter\lastnamedcs\expandafter\gobbleoneargument
427   \else
428     \expandafter\firstofoneargument
429   \fi}
430
431\def\xmlmappedvalue#1#2#3%
432  {\ifcsname\??xmlmapvalue#1:#2\endcsname
433     \expandafter\lastnamedcs
434   \else
435     \csname\??xmlmapvalue#1:#3\expandafter\endcsname
436   \fi}
437
438\let\xmldoifvalueelse\xmldoifelsevalue
439
440\let\xmlmapval\xmlmapvalue
441\let\xmlval   \xmlvalue
442
443%D Experimental:
444
445\def\xmlgetindex    #1{\clf_xmlgetindex {\xmldocument}{#1}}
446\def\xmlwithindex #1#2{\clf_xmlwithindex{\xmldocument}{#1}{#2}}
447\def\xmlreference #1#2{\string\xmlwithindex{#1}{#2}}
448
449%D Entities:
450%D
451%D \starttyping
452%D \xmlsetentity{tex}{\TEX{}} % {} needed
453%D \stoptyping
454
455\unexpanded\def\xmlsetentity#1#2{\clf_xmlsetentity{#1}{\detokenize{#2}}}
456\unexpanded\def\xmltexentity#1#2{\clf_xmltexentity{#1}{\detokenize{#2}}}
457
458%D The following might change (or even disappear) so we keep it undocumented.
459
460\setnewconstant\xmlautoentities\plusone % 0=off, 1=upper, 2=upper,lower
461
462\unexpanded\def\xmle
463  {\ifcase\xmlautoentities
464     \expandafter\lxml_e_none
465   \or
466     \expandafter\lxml_e_upper
467   \or
468     \expandafter\lxml_e_upperlower
469   \else
470     \expandafter\lxml_e_none
471   \fi}
472
473\def\lxml_e_none#1#2% safe
474  {#1}
475
476\def\lxml_e_upper#1#2% can be abbreviation
477  {\ifcsname#2\endcsname
478     \csname#2\expandafter\endcsname
479   \else
480     #1%
481   \fi}
482
483\def\lxml_e_upperlower#1#2% can be anything, so unsafe
484  {\ifcsname#2\endcsname
485     \csname#2\expandafter\endcsname
486   \else\ifcsname#1\endcsname
487     \csname#1\expandafter\expandafter\expandafter\endcsname
488   \else
489     #1%
490   \fi\fi}
491
492% \def\lxml_e_upper#1#2% can be abbreviation
493%   {\ifcsname\detokenize{#2}\endcsname
494%      \lastnamedcs
495%    \else
496%      \detokenize{#1}%
497%    \fi}
498
499% \def\lxml_e_upperlower#1#2% can be anything, so unsafe
500%   {\ifcsname\detokenize{#2}\endcsname
501%      \expandafter\lastnamedcs
502%    \else\ifcsname\detokenize{#1}\endcsname
503%      \doubleexpandafter\lastnamedcs
504%    \else
505%      \detokenize{#1}%
506%    \fi\fi}
507
508%D We keep these around as there are also MP, LUA and TEX variants but
509%D they are not the same as in \MKII.
510
511\unexpanded\def\processXMLbuffer
512  {\dosingleempty\lxml_process_buffer}
513
514\def\lxml_process_buffer[#1]%
515  {\xmlprocessbuffer{temp}{#1}{}}
516
517\unexpanded\def\processXMLfile#1%
518  {\xmlprocessfile{temp}{#1}{}}
519
520\unexpanded\def\XMLdata#1%
521  {\xmlprocessdata{temp}{#1}{}}
522
523\let\processxmlbuffer\processXMLbuffer
524\let\processxmlfile  \processXMLfile
525\let\xmldata         \XMLdata
526
527\unexpanded\def\xmlsetinjectors[#1]%
528  {\clf_xmlsetinjectors{#1}}
529
530\unexpanded\def\xmlresetinjectors
531  {\clf_xmlresetinjectors{}}
532
533% \def\xmlinjector#1{\executeifdefined{#1}\donothing}
534
535\def\xmlinjector#1{\fastsetup{xml:directive:injector:#1}}
536
537\startsetups xml:directive:injector:page
538    \page
539\stopsetups
540
541\startsetups xml:directive:injector:column
542    \column
543\stopsetups
544
545\startsetups xml:directive:injector:blank
546    \blank
547\stopsetups
548
549\startsetups xml:directive:injector:noline
550    \vskip-\lineheight
551\stopsetups
552
553\let\xmlapplyselectors\clf_xmlapplyselectors
554
555% \let\xmlcatcodes\notcatcodes
556
557\protect \endinput
558
559% \newcount\charactersactiveoffset \charactersactiveoffset="10000
560%
561% \startextendcatcodetable\ctxcatcodes
%     \catcode\numexpr\charactersactiveoffset+`<\relax=13
563%     \catcode\numexpr\charactersactiveoffset+`&\relax=13
564%     \catcode\numexpr\charactersactiveoffset+`>\relax=13
565% \stopextendcatcodetable
566%
567% \startextendcatcodetable\xmlcatcodes % not needed
%     \catcode\numexpr\charactersactiveoffset+`<\relax=13
569%     \catcode\numexpr\charactersactiveoffset+`&\relax=13
570%     \catcode\numexpr\charactersactiveoffset+`>\relax=13
571% \stopextendcatcodetable
572%
573% \ctxlua { % entities are remembered in the format
574%     commands.remapentity("<",characters.activeoffset + utf.byte("<"))
575%     commands.remapentity("&",characters.activeoffset + utf.byte("&"))
576%     commands.remapentity(">",characters.activeoffset + utf.byte(">"))
577% }
578