[jira] [Updated] (VXQUERY-34) Basic String Functions

["Preston Carman (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/VXQUERY-34?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Preston Carman updated VXQUERY-34:
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    Attachment: BasicStringFunctions2.patch

 I completed three functions: string-length, upper-case and lower-case.

They appear to work correctly, but I am wondering if there is a better way to get code reuse out of existing classes (UTF8StringWriter) or sharing information between upper and lower functions (getUpperByteArray and getLowerByteArray).
                
> Basic String Functions 
> -----------------------
>
>                 Key: VXQUERY-34
>                 URL: https://issues.apache.org/jira/browse/VXQUERY-34
>             Project: VXQuery
>          Issue Type: Task
>            Reporter: Preston Carman
>              Labels: patch
>         Attachments: BasicStringFunctions2.patch
>
>
> The basic string functions to build help with basic queries.
> fn:concat - Concatenates two or more xs:anyAtomicType arguments cast to xs:string.
> fn:string-join - Returns the xs:string produced by concatenating a sequence of xs:strings using an optional separator.
> fn:substring - Returns the xs:string located at a specified place within an argument xs:string.
> fn:string-length - Returns the length of the argument.
> fn:upper-case - Returns the upper-cased value of the argument.
> fn:lower-case - Returns the lower-cased value of the argument.

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