Namespace

The function namespace The namespace for function names is separate from the namespace for data variables.

A namespace name also does not necessarily imply any of the semantics of URI schemes; a namespace name beginning with 'http:', for example, may have nothing to do with the HTTP protocol.

A programmer can insert the using directive to bypass namespace resolution requirements and obtain backwards compatibility with older code that expects all identifiers to be in the global namespace.

Extended attributes stored in the root namespace can be modified only by the superuser, while attributes in the user namespace can be modified by any user with permission to write to the file.

Hierarchy A naming scheme that allows subdelegation of namespaces to third parties is a hierarchical namespace A hierarchy is recursive if the syntax for the namespace identifiers is the same for each subdelegation.

Modules vs. namespace In many object-oriented languages, classes are the primary means of encapsulation and modularity; each class defines a namespace and controls which definitions are externally visible.

Namespace versus scope A namespace identifier may provide context ( Scope in computer science) to a name, and the terms are sometimes used interchangeably.

That is, an identifier defined in one namespace may or may not have the same meaning as the same identifier defined in another namespace.

Within the namespace of the Doe family, just "Jane" suffices to unambiguously designate this person, while within the "global" namespace of all people, the full name must be used.

For each of the four above items that don’t currently work with purl, the way to make them work is to identify a way to have a controlled namespace for that product type.

ZA namespace, including domains like co.

WEB gTLD, the next closest competitor to VeriSign’s monopoly, and in so doing has eviscerated one of the central pillars of the New gTLD Program: to introduce and promote competition in the Internet namespace in order to break VeriSign’s monopoly.

A library defines items that should be compiled and handled together, while a module defines the namespace.

As well as its abstract language technical usage as described above, some languages have a specific keyword used for explicit namespace control, amongst other uses.

A tree is a collection of one or more domains and domain trees in a contiguous namespace, linked in a transitive trust hierarchy.

A universe in which every object had a UID would not need any namespaces, which is to say that it would constitute one gigantic namespace; but human minds could never keep track of, or semantically interrelate, so many UIDs.

Both scopes of x can be active in the same region of program text, since tagbody labels are in a separate namespace from variable names.

By adding the line using namespace abc; to a piece of code, the prefix abc:: is no longer needed.

Cluster names are global, and no namespace mechanism was provided to group clusters or allow them to be created "locally" inside other clusters.

DNS can also be partitioned according to class; the separate classes can be thought of as an array of parallel namespace trees.