Revision [951]

This is an old revision of CommandXquery made by DavidLee on 2009-11-24 18:48:56.

 

Command xquery


Name

xquery evaluate an XQUERY expression and print the result

Synopsis

xquery [ serialization options ] [-f xquery-file] [-v] [-q xquery-expr] [-i input-file] [-n] [-nons] [-ns prefix=uri [-ns prefix=uri ...] [xquery-expr] [var value [var value]]

Description

-f xquery-file read xquery script from file
-i context use context as the source xml document, otherwise stdin
if context is an XML expression which is an item then use it directly as the context item.
-q query use argument as xquery-expr
-n do not use a source context
-v if -V is given then the remaining args are treated as name/value pairs and assigned to xquery external variables
-nons Do not import global namespace declarations from the shell environment
-ns prefix=uri Add a predeclared namespace declaration

xquery-expr xquery expression

Supports the standard [ serialization options ]

If no -q or -f is given then the next argument is treated as the xquery expression/script.

Not all options are compatible. You cannot read both the query and the context from stdin.
If you supply variables then -q must be supplied.

Example

xls | xquery '//file[1]/@name/string()'

Result
.classpath


Example
xquery -i <[<foo/>] .

Result
<foo/>

Namespace example using a renamed prefix for a namespace

echo "<x:a xmlns:x='foo' />" | xquery -nons -ns y=foo /y:a
Result

<x:a xmlns:x="foo"/>
%%

Return Value

Returns 0 if the the xquery expression executed successfully. otherwise 1


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