VERIFY( ) Verify strings

The VERIFY( ) function compares two strings and returns the position of the first character in the string (STRING) which is not contained in the search string (PATTERN). The number and the order of the characters in the two strings are ignored. The search direction can be freely selected; the returned position value is always with respect to the beginning of the first string.

Result type: INTEGER

VERIFY( )

STRING = string_expression₁

,PATTERN = string_expression₂

,DIRECTION = *FORWARD / *REVERSE