To configure a pattern set,
you must specify the strings that are to serve as patterns. You can manually
assign a unique index value to each of these patterns, or you can allow the
index values to be assigned automatically.
sets are case sensitive (unless you specify the expression to ignore case).
Therefore, the string pattern "product1," for example, is not the same as the
string pattern "Product1."
Points to remember about
- You cannot bind the same
index value to more than one pattern.
- An automatically assigned
index value is one number larger than the highest index value of the existing
patterns within the pattern set. For example, if the highest index value of
existing patterns in a pattern set is 104, the next automatically assigned
index value will be 105.
- If you do not specify an
index for the first pattern, index value 1 is automatically assigned to that
- Index values are not
regenerated automatically if one or more patterns are deleted or modified. For
example, if the set contains five patterns, with indexes from 1 through 5, and
if the pattern with an index of 3 is deleted, the other index values in the
pattern set are not automatically regenerated to produce values from 1 through
- The maximum index value
that can be assigned to a pattern is 4294967290. If that value is already
assigned to a pattern in the set, you must manually assign index values to any
newly added patterns. An unused index value that is lower than a currently used
value cannot be assigned automatically.