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ClearParams ()
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/** Removes any parameter records for this header. */
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ExtractParameters ()
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/** Extracts/separates any parameters from the header's value, and stores the 'clean' value. */
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CHARACTER GetBaseValue ()
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/** Returns the unparameterised value for this header.
@return character The value. */
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CHARACTER GetParameterValue (character)
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/** Returns a parameter from a (for example, 'charset' from Content-Type) header value
@param character The name of the parameter value to retrieve
@return character The charset paremeter value; blank/empty otherwise */
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CHARACTER GetParameterValues ()
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/** Returns the unparameterised value for this header.
@return character The value. */
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CHARACTER GetValue ()
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/* Overridable accessor method
@return character The Value */
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LOGICAL HasParameter (character)
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/** Indicates whether a parameter exists in the header
@param character The name of the parameter to check.
@return logical True if the parameter exists. */
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LOGICAL RemoveParameters (character)
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/* Removes all parameters in this header with a name
@param character the parameter name
@return logical TRUE if at least one parameter was removed. */
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LOGICAL SetParameterValue (character, character)
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/** Saves a parameter value for a header.
@param character (mandatory) The name of the parameter value to retrieve
@param character (mandatory) The parameter value; blank/empty otherwise
@return logical TRUE when the parameter was replaced/previously existed. */
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SetValue (character)
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/* Overridable mutator method
@param character The header value */
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CHARACTER ToString ()
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/* Returns a stringified version of this header object
@return character A stringified representation of this object */
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Validate (character)
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/* Validates a header value. Should throw an error if the value
is not valid.
@param character The (prospective) header value */
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