'''namespace qualifiers''' ''string''

Returns any leading namespace qualifiers for ''string''. Qualifiers are namespace names separated by ::s. For the ''string'' '''::foo::bar::x''', this command returns '''::foo::bar''', and for '''::''' it returns an empty string. This command is the complement of the '''[namespace tail]''' command. Note that it does not check whether the namespace names are, in fact, the names of currently defined namespaces.

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See also:

   * [namespace]
   * [namespace tail]

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