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Posted to dev@xalan.apache.org by "David Bertoni (JIRA)" <xa...@xml.apache.org> on 2007/02/05 21:57:05 UTC

[jira] Commented: (XALANC-535) If an error/warning message contains not-displayable character for the local encoding , no message is shown at all

    [ https://issues.apache.org/jira/browse/XALANC-535?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12470349 ] 

David Bertoni commented on XALANC-535:
--------------------------------------

I'm not sure changing TranscodeToLocalCodePage() so that it transcodes to UTF-8 if the local code page can't represent a character is the right thing to do.  For example, if we're running on an EBCDIC system, then UTF-8 is not going to work at all.

Instead, we should make sure that callers check the return value, then attempt to do something else if code page conversion fails.  As a fallback, TranscodeToLocalCodePage() should use a substitution character for any characters that are not representable.

> If an error/warning message contains not-displayable character for the local encoding , no message is shown at all
> ------------------------------------------------------------------------------------------------------------------
>
>                 Key: XALANC-535
>                 URL: https://issues.apache.org/jira/browse/XALANC-535
>             Project: XalanC
>          Issue Type: Bug
>          Components: XalanC
>    Affects Versions: CurrentCVS
>         Environment: all
>            Reporter: Dmitry Hayes
>         Assigned To: Dmitry Hayes
>            Priority: Minor
>             Fix For: CurrentCVS
>
>         Attachments: patch.txt, patch2.txt
>
>
> For an input:
> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
>      version="1.0">
>   <xsl:output encoding='XML' version='1.0'/>
>   <xsl:template match="/">
>     <out>
>         <xsl:element name='Somename_&#x2028;'/>
>     </out>
>   </xsl:template>
> </xsl:stylesheet>
> output:
> <?xml version="1.0" encoding="UTF-8"?><out/>
> In the XalanDOMString.cpp, "doTranscodeToLocalCodePage" function
> ...
> if (wcstombs(&theTargetVector[0], theTempSource, targetLen) == ~size_t(0))
> {
> 	theTargetVector.clear();
> 	return false;
> }
> ...
> "wcstombs" fails and we return the empty vector . Probably solution here may be, if transcoding to the local code page fails , try to transcode to UTF8 and return the vector

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