Annotation of XML/TODO, revision 1.29

1.1       daniel      1: 
1.16      daniel      2:            TODO for the XML parser and stuff:
                      3:           ==================================
                      4: 
1.24      daniel      5: TODO:
                      6: =====
                      7: 
1.25      daniel      8: - extend validity checks to go through entities content instead of
                      9:   just labelling them PCDATA
                     10: - add support for the trick from Henry conf/sun/valid/empty.xml
                     11: - Correct standalone checking/emitting (hard)
                     12:   2.9 Standalone Document Declaration
1.27      daniel     13: - URI checkings (no fragments) rfc2396.txt
                     14: - Better checking of external parsed entities TAG 1234
                     15: - Find way of representing PERefs in the Dtd so that %entity; can
                     16:   be saved back.
1.28      daniel     17: - Go through erratas and do the cleanup.
                     18:   http://www.w3.org/XML/xml-19980210-errata ... bummmer 
1.18      daniel     19: 
                     20: TODO:
                     21: =====
                     22: 
1.24      daniel     23: - Get OASIS testsuite to a more friendly result, check all the results
                     24:   once stable.
                     25:   http://xmlsoft.org/conf/result.html
                     26: 
1.29    ! daniel     27: - Optimization of tag strings allocation ?
1.24      daniel     28: 
                     29: - maintain coherency of namespace when doing cut'n paste operations
                     30:   => the functions are coded, but need testing
                     31: 
1.29    ! daniel     32: - function to rebuild the ID table
        !            33: - functions to rebuild the DTD hash tables (after DTD changes).
1.24      daniel     34: 
                     35: 
                     36:    
                     37: 
                     38: EXTENSIONS:
                     39: ===========
1.29    ! daniel     40: 
        !            41: - Check attribute normalization especially xmlGetProp()
        !            42: - Validity checking problems for NOTATIONS attributes
        !            43: - Validity checking problems for ENTITY ENTITIES attributes
        !            44: - dynamically adapt the alloc entry point to use g_alloc()/g_free()
        !            45:   if the programmer wants it: 
        !            46:     - use xmlMemSetup() to reset the routines used.
        !            47: - Parsing of a well balanced chunk
1.26      daniel     48: - URI module: validation, base, etc ...
1.21      daniel     49: - Tools to produce man pages from the SGML docs.
1.16      daniel     50: - Finish XPath
1.18      daniel     51:   => attributes addressing troubles
1.19      daniel     52:   => defaulted attributes handling
                     53:   => namespace axis ?
1.16      daniel     54: 
                     55: - Add Xpointer recognition/API
                     56: 
                     57: - Add Xlink recognition/API
1.18      daniel     58:   => started adding an xlink.[ch] with a unified API for XML and HTML.
1.16      daniel     59: 
                     60: - Implement XSLT
1.19      daniel     61:   => seems that someone volunteered ?!?
1.16      daniel     62: 
1.18      daniel     63: - Implement XSchemas
                     64: 
1.16      daniel     65: - O2K parsing;
                     66:   => this is a somewhat ugly mix of HTML and XML, adding a specific
                     67:      routine in the comment parsing code of HTML and plug the XML 
                     68:      parsing one in-there should not be too hard. Key point is to get
                     69:      XSL to transform all this to something decent ...
                     70: 
1.18      daniel     71: - extend the shell with:
                     72:    - edit
                     73:    - load/save
                     74:    - mv (yum, yum, but it's harder because directories are ordered in
                     75:      our case, mvup and mvdown would be required)
1.16      daniel     76: 
1.20      daniel     77: - Add HTML validation using the XHTML DTD
                     78:   - problem: do we want to keep and maintain the code for handling
                     79:     DTD/System ID cache directly in libxml ?
                     80: 
                     81: - Add a DTD cache prefilled with xhtml DTDs and entities and a program to
                     82:   manage them -> like the /usr/bin/install-catalog from SGML
                     83:   right place seems $datadir/xmldtds
                     84: 
                     85: - turn tester into a generic program xml-test installed with xml-devel
1.16      daniel     86: 
1.19      daniel     87: - Add output to XHTML in case of HTML documents.
                     88: 
1.24      daniel     89: 
                     90: Done:
                     91: =====
                     92: 
1.27      daniel     93: - Save Dtds using the children list instead of dumping the tables,
                     94:   order is preserved as well as comments and PIs
                     95: - Wrote a notice of changes requires to go from 1.x to 2.x
                     96: - make sure that all SAX callbacks are disabled if a WF error is detected
                     97: - checking/handling of newline normalization
                     98:   http://localhost/www.xml.com/axml/target.html#sec-line-ends
1.25      daniel     99: - correct checking of '&' '%' on entities content.
                    100: - checking of PE/Nesting on entities declaration
                    101: - checking/handling of xml:space
                    102:    - checking done.
                    103:    - handling done, not well tested
1.24      daniel    104: - Language identification code, productions [33] to [38]
                    105:   => done, the check has been added and report WFness errors
                    106: - Conditional sections in DTDs [61] to [65]
                    107:   => should this crap be really implemented ???
                    108:   => Yep OASIS testsuite uses them
                    109: - Allow parsed entities defined in the internal subset to override
                    110:   the ones defined in the external subset (DtD customization).
                    111:   => This mean that the entity content should be computed only at
                    112:      use time, i.e. keep the orig string only at parse time and expand
                    113:      only when referenced from the external subset :-(
                    114:      Needed for complete use of most DTD from Eve Maler
                    115: - Add regression tests for all WFC errors
                    116:   => did some in test/WFC
                    117:   => added OASIS testsuite routines
                    118:      http://xmlsoft.org/conf/result.html
1.22      daniel    119: 
1.23      daniel    120: - I18N: http://wap.trondheim.com/vaer/index.phtml is not XML and accepted
                    121:   by the XML parser, UTF-8 should be checked when there is no "encoding"
                    122:   declared !
1.24      daniel    123: - Support for UTF-8 and UTF-16 encoding
                    124:   => added some convertion routines provided by Martin Durst
                    125:      patched them, got fixes from @@@
                    126:      I plan to keep everything internally as UTF-8 (or ISO-Latin-X)
                    127:      this is slightly more costly but more compact, and recent processors
                    128:      efficiency is cache related. The key for good performances is keeping
                    129:      the data set small, so will I.
                    130:   => the new progressive reading routines call the detection code
                    131:      is enabled, tested the ISO->UTF-8 stuff
1.20      daniel    132: - External entities loading: 
                    133:    - allow override by client code
                    134:    - make sure it is alled for all external entities referenced
                    135:   Done, client code should use xmlSetExternalEntityLoader() to set
                    136:   the default loading routine. It will be called each time an external
                    137:   entity entity resolution is triggered.
                    138: - maintain ID coherency when removing/changing attributes
                    139:   The function used to deallocate attributes now check for it being an
                    140:   ID and removes it from the table.
                    141: - push mode parsing i.e. non-blocking state based parser
                    142:   done, both for XML and HTML parsers. Use xmlCreatePushParserCtxt()
                    143:   and xmlParseChunk() and html counterparts.
                    144:   The tester program now has a --push option to select that parser 
                    145:   front-end. Douplicated tests to use both and check results are similar.
                    146: 
1.18      daniel    147: - Most of XPath, still see some troubles and occasionnal memleaks.
                    148: - an XML shell, allowing to traverse/manipulate an XML document with
                    149:   a shell like interface, and using XPath for the anming syntax
1.20      daniel    150:   - use of readline and history added when available
                    151:   - the shell interface has been cleanly separated and moved to debugXML.c
1.18      daniel    152: - HTML parser, should be fairly stable now
                    153: - API to search the lang of an attribute
                    154: - Collect IDs at parsing and maintain a table. 
                    155:    PBM: maintain the table coherency
                    156:    PBM: how to detect ID types in absence of DtD !
                    157: - Use it for XPath ID support
                    158: - Add validity checking
                    159:   Should be finished now !
1.16      daniel    160: - Add regression tests with entity substitutions
                    161: 
                    162: - External Parsed entities, either XML or external Subset [78] and [79]
                    163:   parsing the xmllang DtD now works, so it should be sufficient for
                    164:   most cases !
                    165: 
                    166: - progressive reading. The entity support is a first step toward
1.7       daniel    167:   asbtraction of an input stream. A large part of the context is still
                    168:   located on the stack, moving to a state machine and putting everyting
                    169:   in the parsing context should provide an adequate solution.
1.8       daniel    170:   => Rather than progressive parsing, give more power to the SAX-like
                    171:      interface. Currently the DOM-like representation is built but
1.18      daniel    172:      => it should be possible to define that only as a set of SAX callbacks
                    173:        and remove the tree creation from the parser code.
                    174:        DONE
1.8       daniel    175: 
1.1       daniel    176: - DOM support, instead of using a proprietary in memory
                    177:   format for the document representation, the parser should
                    178:   call a DOM API to actually build the resulting document.
                    179:   Then the parser becomes independent of the in-memory
                    180:   representation of the document. Even better using RPC's
                    181:   the parser can actually build the document in another
                    182:   program.
1.8       daniel    183:   => Work started, now the internal representation is by default
                    184:      very near a direct DOM implementation. The DOM glue is implemented
1.16      daniel    185:      as a separate module. See the GNOME gdome module.
                    186: 
1.2       daniel    187: - C++ support : John Ehresman <jehresma@dsg.harvard.edu>
1.6       daniel    188: - Updated code to follow more recent specs, added compatibility flag
1.7       daniel    189: - Better error handling, use a dedicated, overridable error
                    190:   handling function.
                    191: - Support for CDATA.
                    192: - Keep track of line numbers for better error reporting.
                    193: - Support for PI (SAX one).
1.8       daniel    194: - Support for Comments (bad, should be in ASAP, they are parsed
                    195:   but not stored), should be configurable.
                    196: - Improve the support of entities on save (+SAX).
1.2       daniel    197: 

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