The following functions operate on multifield values.
12.2.1 Creating Multifield Values
12.2.2 Specifying an Element
12.2.3 Finding an Element
12.2.4 Comparing Multifield Values
12.2.5 Deletion of Fields in Multifield Values
12.2.6 Creating Multifield Values from Strings.
12.2.7 Creating Strings from Multifield Values
12.2.8 Extracting a Subsequence from a Multifield Value
12.2.9 Replacing Fields within a Multifield Value
12.2.10 Inserting Fields within a Multifield Value
12.2.11 Getting the First Field from a Multifield Value