[Experience] MSXML error handling code

When you use the MSXML component to handle XML document errors, you must provide detailed error information. Most of the Code is just a simple error message returned, and the SDK documentation does not provide a routine. In desperation, I have to turn to Google Code Search again. Fortunately, I will soon find a suitable routine and make some modifications, include in your own code library.

 

 

The error handling code is as follows:

 

 

Msxml2: ixmldomparseerror * pxmlerror = NULL; // for XML errors <br/> long nerrorcode = e_fail; // for error codes </P> <p> If (pxmllicensedoc-> loadxml (m_slicense )! = Variant_true) // failed to load the license <br/>{< br/> wstring wstrerr; <br/> (wstrerr ). assign (L "/R/N"); <br/> (wstrerr ). append (L "failed to load the license/R/N"); </P> <p> hR = pxmllicensedoc-> get_parseerror (& pxmlerror ); </P> <p> If (null! = Pxmlerror) <br/>{< br/> hR = pxmlerror-> get_errorcode (& nerrorcode); <br/> If (nerrorcode! = 0) <br/>{< br/> wstring wstrtmperr; <br/> hR = reporterror (& wstrtmperr, pxmlerror); <br/> (wstrerr ). append (wstrtmperr); <br/>}< br/> pxmlerror-> release (); <br/>}< br/> return-1; <br/>} // end if 

 

The following reporterror function generates a unified Error Report:

// Configure <br/> // -- function reporterror <br/> // configure <br/> // -- this function is used for reporting parsing errors which occur during the <br //> // loading of XML into a ixmldomdocument2ptr object. <br/> // -- parameters: <br/> // wostream & wout-> A wide output stream to whi Ch the Error Report will be output. <br/> // ixmldomparseerror * pxmlerror-> contains the error info. <br/> // configure <br/> hresult cgutil: reporterror (wstring * pwstrerr, msxml2: ixmldomparseerror * pxmlerror) <br/>{< br/> long line; <br/> long linepos; <br/> long errorcode; <br/> BSTR pbreason = NULL; <br/> hresult hr; </P> <p> If (NUL L = pxmlerror) <br/>{< br/> return e_invalidarg; <br/>}// end if </P> <p> hR = pxmlerror-> get_line (& line); <br/> If (succeeded (HR )) <br/>{< br/> hR = pxmlerror-> get_linepos (& linepos); <br/> If (succeeded (HR )) <br/>{< br/> hR = pxmlerror-> get_errorcode (& errorcode); <br/> If (succeeded (HR )) <br/>{< br/> hR = pxmlerror-> get_reason (& pbreason); <br/> If (succeeded (HR )) <br/> {<br/> (* pwstrerr) + = P Breason; <br/> If (line> 0) <br/>{< br/> (* pwstrerr ). append (L "error on line"); <br/> char num1 [10]; <br/> _ ITOA (line, num1, 10 ); <br/> bstr bs = _ com_util: convertstringtobstr (num1); <br/> (* pwstrerr ). append (BS); <br/> (* pwstrerr ). append (L ", position"); <br/> _ ITOA (linepos, num1, 10); <br/> BS = _ com_util: convertstringtobstr (num1 ); <br/> (* pwstrerr ). append (BS); <br/> (* pwstrerr ). append (L ". "); <Br/>}// end if <br/>} // end if </P> <p> If (null! = Pbreason) <br/> sysfreestring (pbreason); <br/> // end if </P> <p> return hr; <br/>}// end function reporterror 

 

The above code reference this link: http://www.google.com/codesearch/p? Hl = ZH-CN # ia8v4e3y9hq/ITTF/publiclyavailablestandards/c043931_ISO_IEC_14496-5_2001_Amd_9_2007_Reference_Software.zip % 7cm6aqbswoj78/Alibaba/systems/im1/IPMP-X/ipmp_reltool/cgutil. CPP & Q = MSXML % 20 loadxml % 20 LANG: C ++ & D = 9

 

Thanks again to Google for bringing useful information to us and giving programmers better learning opportunities and endless freedom!

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