%D \module
%D   [       file=lxml-ini,
%D        version=2007.08.17,
%D          title=\CONTEXT\ \XML\ Support,
%D       subtitle=Initialization,
%D         author=Hans Hagen,
%D           date=\currentdate,
%D      copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
%C
%C This module is part of the \CONTEXT\ macro||package and is
%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
%C details.

%D Todo: auto apply setups (manage at lua end)
%D Todo: manuak: \xmlinclusion \xmlinclusions

\writestatus{loading}{ConTeXt XML Support / Initialization}

%registerctxluafile{lxml-tab}{1.001} % loader
%registerctxluafile{lxml-lpt}{1.001} % parser
%registerctxluafile{lxml-xml}{1.001} % xml finalizers
%registerctxluafile{lxml-aux}{1.001} % extras using parser
%registerctxluafile{lxml-mis}{1.001} % extras independent of parser
\registerctxluafile{lxml-ent}{1.001} % entity hacks
\registerctxluafile{lxml-tex}{1.001} % tex finalizers
\registerctxluafile{lxml-dir}{1.001} % ctx hacks
\registerctxluafile{lxml-ini}{1.001} % interface

\unprotect % todo \!!bs \!!es where handy (slower)

% todo: { } mandate
% avoid #

\def\ctxlxml                #1{\ctxlua{lxml.#1}}

%def\xmlall               #1#2{\clf_xmlall              {#1}{#2}}
%def\xmlatt               #1#2{\clf_xmlatt              {#1}{#2}}
%def\xmlattdef          #1#2#3{\clf_xmlattdef           {#1}{#2}{#3}}
%def\xmlattribute       #1#2#3{\clf_xmlattribute        {#1}{#2}{#3}}
%def\xmlattributedef  #1#2#3#4{\clf_xmlattributedef     {#1}{#2}{#3}{#4}}
%def\xmlchainatt          #1#2{\clf_xmlchainatt         {#1}{#2}}
%def\xmlchainattdef     #1#2#3{\clf_xmlchainattdef      {#1}{#2}{#3}}
%def\xmlrefatt            #1#2{\clf_xmlrefatt           {#1}{#2}}
%def\xmlchecknamespace  #1#2#3{\clf_xmlchecknamespace   {#1}{#2}{#3}} % element
%def\xmlcommand         #1#2#3{\clf_xmlcommand          {#1}{#2}{#3}}
\def\xmlconcat          #1#2#3{\clf_xmlconcat           {#1}{#2}{\detokenize{#3}}}
\def\xmlconcatrange #1#2#3#4#5{\clf_xmlconcatrange      {#1}{#2}{#3}{#4}{\detokenize{#5}}}
%def\xmlcontext           #1#2{\clf_xmlcontext          {#1}{#2}}
%def\xmlcount             #1#2{\clf_xmlcount            {#1}{#2}}
%def\xmldelete            #1#2{\clf_xmldelete           {#1}{#2}}
%def\xmldirect              #1{\clf_xmldirect           {#1}} % in loops, not dt but root
%def\xmldirectives          #1{\clf_xmldirectives       {#1}}
%def\xmldirectivesafter     #1{\clf_xmldirectivesafter  {#1}}
%def\xmldirectivesbefore    #1{\clf_xmldirectivesbefore {#1}}
%def\xmldisplayverbatim     #1{\clf_xmldisplayverbatim  {#1}}
%def\xmlelement           #1#2{\clf_xmlelement          {#1}{#2}}
%def\xmlfilter            #1#2{\clf_xmlfilter           {#1}{#2}}
%def\xmlfilterlist        #1#2{\clf_xmlfilterlist       {#1}{#2}}
%def\xmlfirst             #1#2{\clf_xmlfirst            {#1}{#2}}
%def\xmlflush               #1{\clf_xmlflush            {#1}}
%def\xmlflushcontext        #1{\clf_xmlflushcontext     {#1}}
%def\xmlflushlinewise       #1{\clf_xmlflushlinewise    {#1}}
%def\xmlflushspacewise      #1{\clf_xmlflushspacewise   {#1}}
%def\xmlfunction          #1#2{\clf_xmlfunction         {#1}{#2}}
%def\xmlinclude         #1#2#3{\clf_xmlinclude          {#1}{#2}{#3}}
%def\xmlincludeoptions#1#2#3#4{\clf_xmlincludeoptions   {#1}{#2}{#3}{#4}}
%def\xmlinclusion           #1{\clf_xmlinclusion        {#1}}
%def\xmlinclusions          #1{\clf_xmlinclusions       {#1}}
%def\xmlbadinclusions       #1{\clf_xmlbadinclusions    {#1}}
%def\xmlindex           #1#2#3{\clf_xmlindex            {#1}{#2}{#3}}
%let\xmlposition               \xmlindex
%def\xmlinlineverbatim      #1{\clf_xmlinlineverbatim   {#1}}
%def\xmllast              #1#2{\clf_xmllast             {#1}{#2}}
\def\xmlload              #1#2{\clf_xmlload             {#1}{#2}{\directxmlparameter\c!entities}{\directxmlparameter\c!compress}}
\def\xmlloadbuffer        #1#2{\clf_xmlloadbuffer       {#1}{#2}{\directxmlparameter\c!entities}{\directxmlparameter\c!compress}}
\def\xmlloaddata          #1#2{\clf_xmlloaddata         {#1}{#2}{\directxmlparameter\c!entities}{\directxmlparameter\c!compress}}
%def\xmlloaddirectives      #1{\clf_xmlloaddirectives   {#1}}
\def\xmlloadregistered    #1#2{\clf_xmlloadregistered   {#1}{\directxmlparameter\c!entities}{\directxmlparameter\c!compress}}
%def\xmlmain                #1{\clf_xmlmain             {#1}}
%def\xmlmatch               #1{\clf_xmlmatch            {#1}}
%def\xmlname                #1{\clf_xmlname             {#1}}
%def\xmlnamespace           #1{\clf_xmlnamespace        {#1}}
%def\xmlnonspace          #1#2{\clf_xmlnonspace         {#1}{#2}}
%def\xmlpos                 #1{\clf_xmlpos              {#1}}
%def\xmlraw               #1#2{\clf_xmlraw              {#1}{#2}}
%def\xmlregisterns        #1#2{\clf_xmlregisterns       {#1}{#2}}         % document
%def\xmlremapname     #1#2#3#4{\clf_xmlremapname        {#1}{#2}{#3}{#4}} % element
%def\xmlremapnamespace  #1#2#3{\clf_xmlremapnamespace   {#1}{#2}{#3}}     % document
%def\xmlsave              #1#2{\clf_xmlsave             {#1}{#2}}
%def\xmlsetfunction     #1#2#3{\clf_xmlsetfunction      {#1}{#2}{#3}}
%def\xmlsetsetup        #1#2#3{\clf_xmlsetsetup         {#1}{#2}{#3}}
%def\xmlsnippet           #1#2{\clf_xmlsnippet          {#1}{#2}}
%def\xmlstrip             #1#2{\clf_xmlstrip            {#1}{#2}}
%def\xmlstripanywhere     #1#2{\clf_xmlstripanywhere    {#1}{#2}}
%def\xmlstripnolines      #1#2{\clf_xmlstripnolines     {#1}{#2}}
%def\xmlstripped          #1#2{\clf_xmlstripped         {#1}{#2}}
%def\xmlstrippednolines   #1#2{\clf_xmlstrippednolines  {#1}{#2}}
%def\xmltag                 #1{\clf_xmltag              {#1}}
%def\xmltext              #1#2{\clf_xmltext             {#1}{#2}}
%def\xmltobuffer        #1#2#3{\clf_xmltobuffer         {#1}{#2}{#3}} % id pattern name
%def\xmltobufferverbose #1#2#3{\clf_xmltobufferverbose  {#1}{#2}{#3}} % id pattern name
%def\xmltofile          #1#2#3{\clf_xmltofile           {#1}{#2}{#3}} % id pattern filename
%def\xmltoparameters        #1{\clf_xmltoparameters     {#1}}
%def\xmlverbatim            #1{\clf_xmlverbatim         {#1}}

% experiment:
\let\xmlall                    \clf_xmlall
\let\xmlatt                    \clf_xmlatt
\let\xmlattdef                 \clf_xmlattdef
\let\xmlattribute              \clf_xmlattribute
\let\xmlattributedef           \clf_xmlattributedef
\let\xmlchainatt               \clf_xmlchainatt
\let\xmlchainattdef            \clf_xmlchainattdef
\let\xmlrefatt                 \clf_xmlrefatt
\let\xmlchecknamespace         \clf_xmlchecknamespace
\let\xmlcommand                \clf_xmlcommand
%   \xmlconcat
%   \xmlconcatrange
\let\xmlcontext                \clf_xmlcontext
\let\xmlcount                  \clf_xmlcount
\let\xmldelete                 \clf_xmldelete
\let\xmldirect                 \clf_xmldirect             % in loops, not dt but root
\let\xmldirectives             \clf_xmldirectives
\let\xmldirectivesafter        \clf_xmldirectivesafter
\let\xmldirectivesbefore       \clf_xmldirectivesbefore
\let\xmldisplayverbatim        \clf_xmldisplayverbatim
\let\xmlelement                \clf_xmlelement
\let\xmlfilter                 \clf_xmlfilter
\let\xmlfilterlist             \clf_xmlfilterlist
\let\xmlfirst                  \clf_xmlfirst
\let\xmlflush                  \clf_xmlflush
\let\xmlflushcontext           \clf_xmlflushcontext
\let\xmlflushlinewise          \clf_xmlflushlinewise
\let\xmlflushspacewise         \clf_xmlflushspacewise
\let\xmlfunction               \clf_xmlfunction
\let\xmlinclude                \clf_xmlinclude
\let\xmlincludeoptions         \clf_xmlincludeoptions
\let\xmlinclusion              \clf_xmlinclusion
\let\xmlinclusions             \clf_xmlinclusions
\let\xmlbadinclusions          \clf_xmlbadinclusions
\let\xmlindex                  \clf_xmlindex
\let\xmlposition               \clf_xmlindex
\let\xmlinlineverbatim         \clf_xmlinlineverbatim
\let\xmllast                   \clf_xmllast
%   \xmlload
%   \xmlloadbuffer
%   \xmlloaddata
\let\xmlloaddirectives         \clf_xmlloaddirectives
%   \xmlloadregistered
\let\xmlmain                   \clf_xmlmain
\let\xmlmatch                  \clf_xmlmatch
\let\xmlname                   \clf_xmlname
\let\xmlnamespace              \clf_xmlnamespace
\let\xmlnonspace               \clf_xmlnonspace
\let\xmlpos                    \clf_xmlpos
\let\xmlraw                    \clf_xmlraw
\let\xmlregisterns             \clf_xmlregisterns         % document
\let\xmlremapname              \clf_xmlremapname          % element
\let\xmlremapnamespace         \clf_xmlremapnamespace     % document
\let\xmlsave                   \clf_xmlsave
%let\xmlsetfunction            \clf_xmlsetfunction
\let\xmlsetsetup               \clf_xmlsetsetup
\let\xmlsnippet                \clf_xmlsnippet
\let\xmlstrip                  \clf_xmlstrip
\let\xmlstripanywhere          \clf_xmlstripanywhere
\let\xmlstripnolines           \clf_xmlstripnolines
\let\xmlstripped               \clf_xmlstripped
\let\xmlstrippednolines        \clf_xmlstrippednolines
\let\xmltag                    \clf_xmltag
\let\xmltext                   \clf_xmltext
\let\xmltobuffer               \clf_xmltobuffer           % id pattern name
\let\xmltobufferverbose        \clf_xmltobufferverbose    % id pattern name
\let\xmltofile                 \clf_xmltofile             % id pattern filename
\let\xmltoparameters           \clf_xmltoparameters
\let\xmlverbatim               \clf_xmlverbatim

\def\xmlinfo                #1{\hbox{\ttxx[\clf_xmlinfo{#1}]}}
\def\xmlshow                #1{\startpacked\ttx\xmlverbatim{#1}\stoppacked}

% we need to pass the last argument as function, so

\def\xmlsetfunction#1#2#3{\ctxcommand{xmlsetfunction("#1",\!!bs#2\!!es,#3)}}

% goodie:

\unexpanded\def\xmlprettyprint#1#2%
  {\xmltobufferverbose{#1}{.}{xml-temp}%
   \ifdefined\scitebuffer
     \scitebuffer[#2][xml-temp]%
   \else
     \typebuffer[xml-temp][\c!option=#2]%
   \fi}

% kind of special:

%def\xmlstartraw{\clf_xmlstartraw}
%def\xmlstopraw {\clf_xmlstopraw}

\let\xmlstartraw\clf_xmlstartraw
\let\xmlstopraw \clf_xmlstopraw

% these are expandable! todo: \xmldoifelseattribute

\let\xmldoif              \clf_xmldoif
\let\xmldoifnot           \clf_xmldoifnot
\let\xmldoifelse          \clf_xmldoifelse
\let\xmldoiftext          \clf_xmldoiftext
\let\xmldoifnottext       \clf_xmldoifnottext
\let\xmldoifelsetext      \clf_xmldoifelsetext

\let\xmldoifempty         \clf_xmldoifempty
\let\xmldoifnotempty      \clf_xmldoifnotempty
\let\xmldoifelseempty     \clf_xmldoifelseempty
\let\xmldoifselfempty     \clf_xmldoifselfempty
\let\xmldoifnotselfempty  \clf_xmldoifnotselfempty
\let\xmldoifelseselfempty \clf_xmldoifelseselfempty

\let\xmldoiftextelse      \xmldoifelsetext
\let\xmldoifemptyelse     \xmldoifelseempty
\let\xmldoifselfemptyelse \xmldoifelseselfempty

% \startxmlsetups xml:include
%     \xmlinclude{main}{include}{filename|href}
% \stopxmlsetups
%
% \xmlprependsetup{xml:include}

\let\xmlgrab\xmlsetsetup % obsolete
\let\xmlself\s!unknown   % obsolete

%\ef\xmlsetup#1#2{\setupwithargument{#2}{#1}}
\let\xmlsetup\setupwithargumentswapped

\let\xmls\setupwithargumentswapped % hardly any faster
\let\xmlw\setupwithargument        % hardly any faster

\newtoks \registeredxmlsetups

% todo: 1:xml:whatever always before 3:xml:something

\unexpanded\def\xmlprependsetup            #1{\clf_xmlprependsetup        {*}{#1}}
\unexpanded\def\xmlappendsetup             #1{\clf_xmlappendsetup         {*}{#1}}
\unexpanded\def\xmlbeforesetup           #1#2{\clf_xmlbeforesetup         {*}{#1}{#2}}
\unexpanded\def\xmlaftersetup            #1#2{\clf_xmlaftersetup          {*}{#1}{#2}}

\unexpanded\def\xmlprependdocumentsetup  #1#2{\clf_xmlprependdocumentsetup{#1}{#2}}
\unexpanded\def\xmlappenddocumentsetup   #1#2{\clf_xmlappenddocumentsetup {#1}{#2}}
\unexpanded\def\xmlbeforedocumentsetup #1#2#3{\clf_xmlbeforedocumentsetup {#1}{#2}{#3}}
\unexpanded\def\xmlafterdocumentsetup  #1#2#3{\clf_xmlafterdocumentsetup  {#1}{#2}{#3}}

\unexpanded\def\xmlremovesetup             #1{\clf_xmlremovesetup         {*}{#1}}
\unexpanded\def\xmlremovedocumentsetup   #1#2{\clf_xmlremovedocumentsetup {#1}{#2}}

\unexpanded\def\xmlflushdocumentsetups   #1#2{\clf_xmlflushdocumentsetups {#1}{*}{#2}} % #1 == id where to apply * and #2
\unexpanded\def\xmlresetdocumentsetups     #1{\clf_xmlresetdocumentsetups {#1}}

\let\xmlregistersetup        \xmlappendsetup
\let\xmlregisterdocumentsetup\xmlappenddocumentsetup

\def\xmldocument{main}

\unexpanded\def\xmlregisteredsetups
  {\xmlstarttiming
   \xmlflushsetups
   \xmldefaulttotext\xmldocument % after include
   \xmlstoptiming}

\unexpanded\def\xmlregistereddocumentsetups#1#2% id setups
  {\xmlstarttiming
   % todo: test for duplicates !
   \xmlflushdocumentsetups{#1}{#2}%
   \xmldefaulttotext{#1}% after include
   \xmlstoptiming}

\unexpanded\def\xmlstarttiming{\clf_xmlstarttiming}
\unexpanded\def\xmlstoptiming {\clf_xmlstoptiming}

\def\lxml_process#1#2#3#4#5% flag \loader id name what initializersetup
  {\begingroup
   \edef\xmldocument{#3}% #2 can be \xmldocument and set as such
   %xmlpushdocument{#3}%
   #2{#3}{#4}%
   \setcatcodetable\notcatcodes
   \doifelsenothing{#5}
     {\xmlsetup{#3}{xml:process}}
     {\xmlsetup{#3}{#5}}%
   %xmlpopdocument
   \endgroup}

\unexpanded\def\xmlprocessfile      {\lxml_process\plusone  \xmlload}
\unexpanded\def\xmlprocessdata      {\lxml_process\zerocount\xmlloaddata}
\unexpanded\def\xmlprocessbuffer    {\lxml_process\zerocount\xmlloadbuffer}
\unexpanded\def\xmlprocessregistered{\lxml_process\zerocount\xmlloadregistered}
           \let\xmlprocess           \xmlprocessfile

\startxmlsetups xml:flush
    \xmlflush{#1}
\stopxmlsetups

\startxmlsetups xml:process
    \xmlregistereddocumentsetups{#1}{#1}
    \xmlmain{#1}
\stopxmlsetups

\unexpanded\def\xmlloadonly#1#2#3%
  {\xmlload{#1}{#2}%
   \xmlregistereddocumentsetups{#1}{#3}}

% beware: \xmlmain takes the real root, so also processing
% instructions preceding the root element; well, in some
% sense that is the root

\unexpanded\def\xmlconnect#1#2#3% inefficient
  {\scratchcounter\xmlcount{#1}{#2}\relax
   \ifcase\scratchcounter \or
     \xmlall{#1}{#2}%
   \else
     \dorecurse \scratchcounter
       {\ifnum\recurselevel>\plusone#3\fi
        \xmlidx{#1}{#2}\recurselevel}%
   \fi}

\unexpanded\def\xmlcdataobeyedline {\obeyedline}
\unexpanded\def\xmlcdataobeyedspace{\strut\obeyedspace}
\unexpanded\def\xmlcdatabefore     {\bgroup\tt}
\unexpanded\def\xmlcdataafter      {\egroup}

% verbatim (dodo:pre/post whitespace, maybe splot verbatim and
% cdata commands), experimental:
%
% \xmlsetfunction{main}{verbatim}{lxml.displayverbatim}
% \xmlsetfunction{main}{verb}    {lxml.inlineverbatim}

% we use an xml: namespace so one has to define a suitable verbatim, say
%
% \definetyping[xml:verbatim][typing]
%
% this is experimental!

\unexpanded\def\startxmldisplayverbatim[#1]%
  {\startpacked % \begingroup
   \edef\currenttyping{xml:#1}%
   \unexpanded\def\stopxmldisplayverbatim
     {\endofverbatimlines
      \stoppacked} % \endgroup
   \doinitializeverbatim
   \beginofverbatimlines}

\unexpanded\def\startxmlinlineverbatim[#1]%
  {\begingroup
   \edef\currenttype{xml:#1}%
   \let\stopxmlinlineverbatim\endgroup
   \doinitializeverbatim}

% will move but is developed for xml

\newtoks \collectingtoks

\unexpanded\def\startcollect#1\stopcollect
  {\collectingtoks\@EA{\the\collectingtoks#1}}

\unexpanded\def\startexpandedcollect#1\stopexpandedcollect
  {\normalexpanded{\collectingtoks{\the\collectingtoks#1}}}

\unexpanded\def\startcollecting{\collectingtoks\emptytoks}
\unexpanded\def\stopcollecting {\the\collectingtoks}

\def\inlinemessage #1{\dontleavehmode{\tttf#1}}
\def\displaymessage#1{\blank\inlinemessage{#1}\blank}

% processing instructions

\unexpanded\def\xmlinstalldirective#1#2%
  {\clf_xmlinstalldirective{#1}{\checkedstrippedcsname#2}}

% \def\xmlcontextdirective#1% kind class key value
%   {\executeifdefined{xml#1directive}\gobblethreearguments}

% setting up xml:
%
% \setupxml[\c!default=]        % mkiv only == text
% \setupxml[\c!default=\v!none] % mkiv only, undefined -> hidden
% \setupxml[\c!default=\v!text] % mkiv only, undefined -> text

% \def\xmlctxdirective#1#2#3{\doif{#1}{clue}{\doif{#2}{page}}{\page[#3]}}

\newconstant\xmlprocessingmode % 0=unset, 1=text, 2=hidden

\installcorenamespace{xml}
\installcorenamespace{xmldefaults}
\installcorenamespace{xmlmapvalue}

\installdirectcommandhandler \??xml {xml}

\letvalue{\??xmldefaults\v!normal}\zerocount
\letvalue{\??xmldefaults\v!none  }\zerocount
\letvalue{\??xmldefaults\v!text  }\plusone
\letvalue{\??xmldefaults\v!hidden}\plustwo

\unexpanded\def\xmldefaulttotext
  {\ifcase\xmlprocessingmode
     \expandafter\gobbleoneargument       % unset
   \or
     \expandafter\clf_xmlsetcommandtotext % 1
   \or
     \expandafter\clf_xmlsetcommandtonone % 2
   \else
     \expandafter\gobbleoneargument       % unset
   \fi}

\appendtoks
    \xmlprocessingmode\executeifdefined{\??xmldefaults\directxmlparameter\c!default}\plusone
\to \everysetupxml

\setupxml
  [\c!default=,          % flush all
   \c!compress=\v!no,    % strip comment
   \c!entities=\v!yes]   % replace entities

\def\xmlmapvalue    #1#2#3{\setvalue{\??xmlmapvalue#1:#2}{#3}} % keep #3 to grab spaces
\def\xmlvalue       #1#2#3{\executeifdefined{\??xmlmapvalue#1:#2}{#3}}
%def\xmlvalue         #1#2{\ifcsname\??xmlmapvalue#1:#2\endcsname\csname\??xmlmapvalue#1:#2\expandafter\expandafter\gobbleoneargument\expandafter\endcsname\else\expandafter\firstofoneargument\fi}
\def\xmldoifelsevalue #1#2{\ifcsname\??xmlmapvalue#1:#2\endcsname\expandafter\firstoftwoarguments\else\expandafter\secondoftwoarguments\fi}

\let\xmldoifvalueelse\xmldoifelsevalue

\let\xmlmapval\xmlmapvalue
\let\xmlval   \xmlvalue

%D Experimental:

\def\xmlgetindex    #1{\clf_xmlgetindex {\xmldocument}{#1}}
\def\xmlwithindex #1#2{\clf_xmlwithindex{\xmldocument}{#1}{#2}}
\def\xmlreference #1#2{\string\xmlwithindex{#1}{#2}}

%D Entities (might change):

\setnewconstant\xmlautoentities\plusone % 0=off, 1=upper, 2=upper,lower

\unexpanded\def\xmlsetentity#1#2{\clf_xmlsetentity{#1}{\detokenize{#2}}}
\unexpanded\def\xmltexentity#1#2{\clf_xmltexentity{#1}{\detokenize{#2}}}

% \xmlsetentity{tex}{\TEX{}} % {} needed

\unexpanded\def\xmle
  {\ifcase\xmlautoentities
     \expandafter\lxml_e_none
   \or
     \expandafter\lxml_e_upper
   \or
     \expandafter\lxml_e_upperlower
   \else
     \expandafter\lxml_e_none
   \fi}

\def\lxml_e_none#1#2% safe
  {#1}

\def\lxml_e_upper#1#2% can be abbreviation
  {\ifcsname#2\endcsname
     \csname#2\expandafter\endcsname
   \else
     #1%
   \fi}

\def\lxml_e_upperlower#1#2% can be anything, so unsafe
  {\ifcsname#2\endcsname
     \csname#2\expandafter\endcsname
   \else\ifcsname#1\endcsname
     \csname#1\expandafter\expandafter\expandafter\endcsname
   \else
     #1%
   \fi\fi}

% handy helpers (analogue to MP and LUA and TEX and also MkII)

\unexpanded\def\processXMLbuffer
  {\dosingleempty\lxml_process_buffer}

\def\lxml_process_buffer[#1]%
  {\xmlprocessbuffer{temp}{#1}{}}

\unexpanded\def\processXMLfile#1%
  {\xmlprocessfile{temp}{#1}{}}

\unexpanded\def\XMLdata#1%
  {\xmlprocessdata{temp}{#1}{}}

\let\processxmlbuffer\processXMLbuffer
\let\processxmlfile  \processXMLfile
\let\xmldata         \XMLdata

\unexpanded\def\xmlsetinjectors[#1]%
  {\clf_xmlsetinjectors{#1}}

\unexpanded\def\xmlresetinjectors
  {\clf_xmlresetinjectors{}}

\def\xmlinjector#1{\executeifdefined{#1}\donothing}

\let\xmlapplyselectors\clf_xmlapplyselectors

\protect \endinput

% \newcount\charactersactiveoffset \charactersactiveoffset="10000
%
% \startextendcatcodetable\ctxcatcodes
%     \catcode\numexpr\charactersactiveoffset+`<\relax=13
%     \catcode\numexpr\charactersactiveoffset+`&\relax=13
%     \catcode\numexpr\charactersactiveoffset+`>\relax=13
% \stopextendcatcodetable
%
% \startextendcatcodetable\xmlcatcodes % not needed
%     \catcode\numexpr\charactersactiveoffset+`<\relax=13
%     \catcode\numexpr\charactersactiveoffset+`&\relax=13
%     \catcode\numexpr\charactersactiveoffset+`>\relax=13
% \stopextendcatcodetable
%
% \ctxlua { % entities are remembered in the format
%     commands.remapentity("<",characters.activeoffset + utf.byte("<"))
%     commands.remapentity("&",characters.activeoffset + utf.byte("&"))
%     commands.remapentity(">",characters.activeoffset + utf.byte(">"))
% }