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Member "SAOImageDS9/libxml2/TODO" (13 Nov 2019, 11366 Bytes) of package /linux/misc/ds9.8.1.tar.gz:


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    1 124907 HTML parse buffer problem when parsing larse in-memory docs
    2 124110 DTD validation && wrong namespace
    3 123564 xmllint --html --format
    4 
    5            TODO for the XML parser and stuff:
    6 	   ==================================
    7 
    8       $Id$
    9 
   10     this tend to be outdated :-\ ...
   11 
   12 DOCS:
   13 =====
   14 
   15 - use case of using XInclude to load for example a description.
   16   order document + product base -(XSLT)-> quote with XIncludes 
   17                                                    |
   18   HTML output with description of parts <---(XSLT)--
   19 
   20 TODO:
   21 =====
   22 - XInclude at the SAX level (libSRVG)
   23 - fix the C code prototype to bring back doc/libxml-undocumented.txt
   24   to a reasonable level
   25 - Computation of base when HTTP redirect occurs, might affect HTTP
   26   interfaces.
   27 - Computation of base in XInclude. Relativization of URIs.
   28 - listing all attributes in a node.
   29 - Better checking of external parsed entities TAG 1234
   30 - Go through erratas and do the cleanup.
   31   http://www.w3.org/XML/xml-19980210-errata ... started ...
   32 - jamesh suggestion: SAX like functions to save a document ie. call a
   33   function to open a new element with given attributes, write character
   34   data, close last element, etc
   35   + inversted SAX, initial patch in April 2002 archives.
   36 - htmlParseDoc has parameter encoding which is not used.
   37   Function htmlCreateDocParserCtxt ignore it.
   38 - fix realloc() usage.
   39 - Stricten the UTF8 conformance (Martin Duerst):
   40   http://www.w3.org/2001/06/utf-8-test/.
   41   The bad files are in http://www.w3.org/2001/06/utf-8-wrong/.
   42 - xml:id normalized value
   43 
   44 TODO:
   45 =====
   46 
   47 - move all string manipulation functions (xmlStrdup, xmlStrlen, etc.) to
   48   global.c. Bjorn noted that the following files depends on parser.o solely
   49   because of these string functions: entities.o, global.o, hash.o, tree.o,
   50   xmlIO.o, and xpath.o.
   51 
   52 - Optimization of tag strings allocation ?
   53 
   54 - maintain coherency of namespace when doing cut'n paste operations
   55   => the functions are coded, but need testing
   56 
   57 - function to rebuild the ID table
   58 - functions to rebuild the DTD hash tables (after DTD changes).
   59    
   60 
   61 EXTENSIONS:
   62 ===========
   63 
   64 - Tools to produce man pages from the SGML docs.
   65 
   66 - Add Xpointer recognition/API
   67 
   68 - Add Xlink recognition/API
   69   => started adding an xlink.[ch] with a unified API for XML and HTML.
   70      it's crap :-(
   71 
   72 - Implement XSchemas
   73   => Really need to be done <grin/>
   74   - datatype are complete, but structure support is very limited.
   75 
   76 - extend the shell with:
   77    - edit
   78    - load/save
   79    - mv (yum, yum, but it's harder because directories are ordered in
   80      our case, mvup and mvdown would be required)
   81 
   82 
   83 Done:
   84 =====
   85 
   86 - Add HTML validation using the XHTML DTD
   87   - problem: do we want to keep and maintain the code for handling
   88     DTD/System ID cache directly in libxml ?
   89   => not really done that way, but there are new APIs to check elements
   90      or attributes. Otherwise XHTML validation directly ...
   91 
   92 - XML Schemas datatypes except Base64 and BinHex
   93 
   94 - Relax NG validation
   95 
   96 - XmlTextReader streaming API + validation
   97 
   98 - Add a DTD cache prefilled with xhtml DTDs and entities and a program to
   99   manage them -> like the /usr/bin/install-catalog from SGML
  100   right place seems $datadir/xmldtds
  101   Maybe this is better left to user apps
  102   => use a catalog instead , and xhtml1-dtd package
  103 
  104 - Add output to XHTML
  105   => XML serializer automatically recognize the DTd and apply the specific
  106      rules.
  107 
  108 - Fix output of <tst val="x&#xA;y"/>
  109 
  110 - compliance to XML-Namespace checking, see section 6 of
  111   http://www.w3.org/TR/REC-xml-names/
  112 
  113 - Correct standalone checking/emitting (hard)
  114   2.9 Standalone Document Declaration
  115 
  116 - Implement OASIS XML Catalog support
  117   http://www.oasis-open.org/committees/entity/
  118 
  119 - Get OASIS testsuite to a more friendly result, check all the results
  120   once stable. the check-xml-test-suite.py script does this
  121 
  122 - Implement XSLT
  123   => libxslt
  124 
  125 - Finish XPath
  126   => attributes addressing troubles
  127   => defaulted attributes handling
  128   => namespace axis ?
  129   done as XSLT got debugged
  130 
  131 - bug reported by Michael Meallin on validation problems
  132   => Actually means I need to add support (and warn) for non-deterministic
  133      content model.
  134 - Handle undefined namespaces in entity contents better ... at least
  135   issue a warning
  136 - DOM needs
  137   int xmlPruneProp(xmlNodePtr node, xmlAtttrPtr attr);
  138   => done it's actually xmlRemoveProp xmlUnsetProp xmlUnsetNsProp
  139 
  140 - HTML: handling of Script and style data elements, need special code in
  141   the parser and saving functions (handling of < > " ' ...):
  142   http://www.w3.org/TR/html4/types.html#type-script
  143   Attributes are no problems since entities are accepted.
  144 - DOM needs
  145   xmlAttrPtr xmlNewDocProp(xmlDocPtr doc, const xmlChar *name, const xmlChar *value)
  146 - problem when parsing hrefs with & with the HTML parser (IRC ac)
  147 - If the internal encoding is not UTF8 saving to a given encoding doesn't
  148   work => fix to force UTF8 encoding ...
  149   done, added documentation too
  150 - Add an ASCII I/O encoder (asciiToUTF8 and UTF8Toascii)
  151 - Issue warning when using non-absolute namespaces URI.
  152 - the html parser should add <head> and <body> if they don't exist
  153   started, not finished.
  154   Done, the automatic closing is added and 3 testcases were inserted
  155 - Command to force the parser to stop parsing and ignore the rest of the file.
  156   xmlStopParser() should allow this, mostly untested
  157 - support for HTML empty attributes like <hr noshade>
  158 - plugged iconv() in for support of a large set of encodings.
  159 - xmlSwitchToEncoding() rewrite done
  160 - URI checkings (no fragments) rfc2396.txt
  161 - Added a clean mechanism for overload or added input methods:
  162   xmlRegisterInputCallbacks()
  163 - dynamically adapt the alloc entry point to use g_alloc()/g_free()
  164   if the programmer wants it: 
  165     - use xmlMemSetup() to reset the routines used.
  166 - Check attribute normalization especially xmlGetProp()
  167 - Validity checking problems for NOTATIONS attributes
  168 - Validity checking problems for ENTITY ENTITIES attributes
  169 - Parsing of a well balanced chunk xmlParseBalancedChunkMemory()
  170 - URI module: validation, base, etc ... see uri.[ch]
  171 - turn tester into a generic program xmllint installed with libxml
  172 - extend validity checks to go through entities content instead of
  173   just labelling them PCDATA
  174 - Save Dtds using the children list instead of dumping the tables,
  175   order is preserved as well as comments and PIs
  176 - Wrote a notice of changes requires to go from 1.x to 2.x
  177 - make sure that all SAX callbacks are disabled if a WF error is detected
  178 - checking/handling of newline normalization
  179   http://localhost/www.xml.com/axml/target.html#sec-line-ends
  180 - correct checking of '&' '%' on entities content.
  181 - checking of PE/Nesting on entities declaration
  182 - checking/handling of xml:space
  183    - checking done.
  184    - handling done, not well tested
  185 - Language identification code, productions [33] to [38]
  186   => done, the check has been added and report WFness errors
  187 - Conditional sections in DTDs [61] to [65]
  188   => should this crap be really implemented ???
  189   => Yep OASIS testsuite uses them
  190 - Allow parsed entities defined in the internal subset to override
  191   the ones defined in the external subset (DtD customization).
  192   => This mean that the entity content should be computed only at
  193      use time, i.e. keep the orig string only at parse time and expand
  194      only when referenced from the external subset :-(
  195      Needed for complete use of most DTD from Eve Maler
  196 - Add regression tests for all WFC errors
  197   => did some in test/WFC
  198   => added OASIS testsuite routines
  199      http://xmlsoft.org/conf/result.html
  200 
  201 - I18N: http://wap.trondheim.com/vaer/index.phtml is not XML and accepted
  202   by the XML parser, UTF-8 should be checked when there is no "encoding"
  203   declared !
  204 - Support for UTF-8 and UTF-16 encoding
  205   => added some convertion routines provided by Martin Durst
  206      patched them, got fixes from @@@
  207      I plan to keep everything internally as UTF-8 (or ISO-Latin-X)
  208      this is slightly more costly but more compact, and recent processors
  209      efficiency is cache related. The key for good performances is keeping
  210      the data set small, so will I.
  211   => the new progressive reading routines call the detection code
  212      is enabled, tested the ISO->UTF-8 stuff
  213 - External entities loading: 
  214    - allow override by client code
  215    - make sure it is alled for all external entities referenced
  216   Done, client code should use xmlSetExternalEntityLoader() to set
  217   the default loading routine. It will be called each time an external
  218   entity entity resolution is triggered.
  219 - maintain ID coherency when removing/changing attributes
  220   The function used to deallocate attributes now check for it being an
  221   ID and removes it from the table.
  222 - push mode parsing i.e. non-blocking state based parser
  223   done, both for XML and HTML parsers. Use xmlCreatePushParserCtxt()
  224   and xmlParseChunk() and html counterparts.
  225   The tester program now has a --push option to select that parser 
  226   front-end. Douplicated tests to use both and check results are similar.
  227 
  228 - Most of XPath, still see some troubles and occasionnal memleaks.
  229 - an XML shell, allowing to traverse/manipulate an XML document with
  230   a shell like interface, and using XPath for the anming syntax
  231   - use of readline and history added when available
  232   - the shell interface has been cleanly separated and moved to debugXML.c
  233 - HTML parser, should be fairly stable now
  234 - API to search the lang of an attribute
  235 - Collect IDs at parsing and maintain a table. 
  236    PBM: maintain the table coherency
  237    PBM: how to detect ID types in absence of DtD !
  238 - Use it for XPath ID support
  239 - Add validity checking
  240   Should be finished now !
  241 - Add regression tests with entity substitutions
  242 
  243 - External Parsed entities, either XML or external Subset [78] and [79]
  244   parsing the xmllang DtD now works, so it should be sufficient for
  245   most cases !
  246 
  247 - progressive reading. The entity support is a first step toward
  248   asbtraction of an input stream. A large part of the context is still
  249   located on the stack, moving to a state machine and putting everyting
  250   in the parsing context should provide an adequate solution.
  251   => Rather than progressive parsing, give more power to the SAX-like
  252      interface. Currently the DOM-like representation is built but
  253      => it should be possible to define that only as a set of SAX callbacks
  254 	and remove the tree creation from the parser code.
  255 	DONE
  256 
  257 - DOM support, instead of using a proprietary in memory
  258   format for the document representation, the parser should
  259   call a DOM API to actually build the resulting document.
  260   Then the parser becomes independent of the in-memory
  261   representation of the document. Even better using RPC's
  262   the parser can actually build the document in another
  263   program.
  264   => Work started, now the internal representation is by default
  265      very near a direct DOM implementation. The DOM glue is implemented
  266      as a separate module. See the GNOME gdome module.
  267 
  268 - C++ support : John Ehresman <jehresma@dsg.harvard.edu>
  269 - Updated code to follow more recent specs, added compatibility flag
  270 - Better error handling, use a dedicated, overridable error
  271   handling function.
  272 - Support for CDATA.
  273 - Keep track of line numbers for better error reporting.
  274 - Support for PI (SAX one).
  275 - Support for Comments (bad, should be in ASAP, they are parsed
  276   but not stored), should be configurable.
  277 - Improve the support of entities on save (+SAX).
  278