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Some properties and parameters allow a list of values. Values in a list of values MUST be separated by a COMMA character. There is no significance to the order of values in a list. For those parameter values (such as those that specify URI values) that are specified in quoted-strings, the individual quoted-strings are separated by a COMMA character.

Some property values are defined in terms of multiple parts. These structured property values MUST have their value parts separated by a SEMICOLON character.

Some properties allow a list of parameters. Each property parameter in a list of property parameters MUST be separated by a SEMICOLON character.

Property parameters with values containing a COLON character, a SEMICOLON character or a COMMA character MUST be placed in quoted text.

For example, in the following properties, a SEMICOLON is used to separate property parameters from each other and a COMMA character is used to separate property values in a value list.

  ATTENDEE;RSVP=TRUE;ROLE=REQ-PARTICIPANT:mailto:
jsmith@example.com

  RDATE;VALUE=DATE:19970304,19970504,19970704,19970904

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