tclxml-users

[Tclxml-users] Problem with CharacterData

[Randy J. <rj...@ak...>]

Hi,
I'm using TclXML-1.2 to parse a XML file which among other things contains
some C source code generated from a user interface specification tool.
Character data in the C source code appears to have been properly processed
so that C special characters do not collide with XML special characters
(e.g. "&" is converted to "amp"). This XML file is parsed cleanly by TclXML
_without_ the C code in it. With the C code in it, it can be parsed cleanly
by XMLSpy editor. There is a TclXML "Highlight.tcl" example I pulled off the
web, it has the same problem with the XML file in question that my script
does.

When my script parses the XML file, I keep getting the error indicated in
the partial stack trace below. I've also included a fragment of the XML file
below. I've attempted to modify the sgml.tcl Entity and parseEvent routines
to work around this problem but without any success. Any suggestions are
greatly appreciated!

Thanks in Advance,
Randy Jones

Fragment of XML file where problem occurs.
---------------
...
<handler_list>
        <hd type="0" req_param_mask="0x00000001" opt_param_mask="0x00000000"
func="RCC_show_alarm_status">
extern RLSTATUS
RCC_show_alarm_status(cli_env *pCliEnv, paramList *pParams, sbyte *pAuxBuf)
{
    RLSTATUS    status = OK;
    sbyte       *pVal;
    paramDescr  *pParamDescr;
    sbyte    *pOutputBuf;
    Length   outputLen;

    /* get required parameter */
    status = RCC_DB_RetrieveParam(pParams, NULL, mShowAlarmStatus_NULL1,
&amp;pParamDescr );

the problem occurs when the parser processes the &amp field in the line
above.
    if ( OK != status )
    {
...

A partial stack trace is;
-------------
can't read "options(-statevariable)": no such variable
    while executing
"upvar #0 $options(-statevariable) state"
    (procedure "Entity" line 3)
    invoked from within
"Entity options {} ::::sgml::noop ::sgml::EntityPredef amp"
    (in namespace inscope "::sgml" script line 1)
    invoked from within
"namespace inscope ::sgml {Entity options {} ::::sgml::noop
::sgml::EntityPredef} {amp} "
    ("uplevel" body line 12)
    invoked from within
"uplevel #0 ::::sgml::noop {{
extern RLSTATUS
RCC_show_alarm_status(cli_env *pCliEnv, paramList *pParams, sbyte *pAuxBuf)
\\{
    RLSTATUS    status =..."
    ("eval" body line 1)
    invoked from within
"eval $text"
    (procedure "::sgml::parseEvent" line 326)
    invoked from within
"::sgml::parseEvent {?xml {} { version="1.0"?} {
.....End of Partial Stack Trace.
--------------------

Re: [Tclxml-users] Problem with CharacterData

[Steve B. <Ste...@zv...>]

Randy Jones wrote:
> I'm using TclXML-1.2 to parse a XML file which among other things
> contains some C source code generated from a user interface
> specification tool. Character data in the C source code appears to
> have been properly processed so that C special characters do not
> collide with XML special characters (e.g. "&" is converted to "amp").
> This XML file is parsed cleanly by TclXML _without_ the C code in it.
> With the C code in it, it can be parsed cleanly by XMLSpy editor.
> There is a TclXML "Highlight.tcl" example I pulled off the web, it has
> the same problem with the XML file in question that my script does.
[...snip...]

I'd suggest grabbing a copy of TclXML v2.0, preferably via NetCVS
from the SourceForge repository.  V2.0 has various fixes for handling
entities (pre-defined and otherwise).

It is not surprising that 'highlight.tcl' encounters the same problem,
since it is using the same underlying parser.

If you have further problems, then please let me know.

Cheers,
Steve Ball

-- 
Steve Ball            | waX Me Lyrical XML Editor | Training & Seminars
Zveno Pty Ltd         |     Web Tcl Complete      |      XML XSL
http://www.zveno.com/ |      TclXML TclDOM        | Tcl, Web Development
Ste...@zv...  +---------------------------+---------------------
Ph. +61 2 6242 4099   |   Mobile (0413) 594 462   | Fax +61 2 6242 4099

RE: [Tclxml-users] Problem with CharacterData

[Randy J. <rj...@ak...>]

Hi Steve,

Thanks for your prompt reply! I downloaded TclXML-2.0 and it worked much
better for me (in this application) than did TclXML-1.2.
There were still problems (different ones which may have been related to my
script), but I was able to work around them by using the "continue" Callback
Return Code to ignore the element which was giving me trouble.

Thanks Again,
Randy Jones


> -----Original Message-----
> From: Steve Ball [mailto:Ste...@zv...]
> Sent: Friday, December 08, 2000 5:49 PM
> To: rj...@ak...
> Cc: tcl...@li...
> Subject: Re: [Tclxml-users] Problem with CharacterData
>
>
> Randy Jones wrote:
> > I'm using TclXML-1.2 to parse a XML file which among other things
> > contains some C source code generated from a user interface
> > specification tool. Character data in the C source code appears to
> > have been properly processed so that C special characters do not
> > collide with XML special characters (e.g. "&" is converted
> to "amp").
> > This XML file is parsed cleanly by TclXML _without_ the C
> code in it.
> > With the C code in it, it can be parsed cleanly by XMLSpy editor.
> > There is a TclXML "Highlight.tcl" example I pulled off the
> web, it has
> > the same problem with the XML file in question that my script does.
> [...snip...]
>
> I'd suggest grabbing a copy of TclXML v2.0, preferably via NetCVS
> from the SourceForge repository.  V2.0 has various fixes for handling
> entities (pre-defined and otherwise).
>
> It is not surprising that 'highlight.tcl' encounters the same problem,
> since it is using the same underlying parser.
>
> If you have further problems, then please let me know.
>
> Cheers,
> Steve Ball
>
> --
> Steve Ball            | waX Me Lyrical XML Editor | Training
> & Seminars
> Zveno Pty Ltd         |     Web Tcl Complete      |      XML XSL
> http://www.zveno.com/ |      TclXML TclDOM        | Tcl, Web
> Development
> Ste...@zv...
> +---------------------------+---------------------
> Ph. +61 2 6242 4099   |   Mobile (0413) 594 462   | Fax +61 2
> 6242 4099
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