| Element
|
A component of the hierarchical structure defined by a
document type definition; it is identified in a document
instance by descriptive markup, usually a start-tag and
end-tag. SGML
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| End-tag
|
Descriptive markup that identifies the end of an element.
SGML
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| Engine
|
Software used by search services.
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| Entity
|
A special character such as & that needs to be entered with an
escape sequence. An iconic entity is a small icon that is useful in
lists and headings, such as a folder icon to represent a directory.
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| Environment Variable
|
Standard information that can be collected by CGI scripts.
CGI scripts get their input mainly from environment variables and
standard input (when using the POST method).
These environment variables are set when the server
executes the gateway program.
The environment variable QUERY_STRING is everything that
follows the question mark in the URL.
This information could be added either by an isindex document,
or by a form using the GET method.
In the POST method, form data are read from stdin.
Since the server does send an EOF at the end of the data, the
environment variable CONTENT_LENGTH is included to determine how
much data to read from stdin.
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