Verify   built-in function

The Verify function locates the position where a character within a string does not correspond with those defined in the 2nd argument. Two types of searches are supported.

When performing a Match search the Verify function locates the first character that matches those defined in the 2nd argument.

When performing a NoMatch search the Verify function locates the first character that does not match those defined in the 2nd argument.

Note: the character case is significant during the matching process.

result = Verify( string, charSet [, [ option ] [, start ] ] )

string

the string to analyze

charSet

the set of referenced characters

option

an option which identifies whether to analyze matches or mismatches. The option argument is one of the following:

NoMatch -- locates where the string does not match a reference character (Default)

Match -- locates where the string matches a reference character

start

an optional starting position. The default is 1, which is the first character in string

Examples: say Verify( 'Shazam', 'abcsh' ) -- shows: 1, the character case of the 'S' does not match say Verify( 'Shazam', 'abcSh' ) -- shows: 4 say Verify( 'Shazam', 'abcsh', 'N' ) -- shows: 1, the character case of the 'S' does not match say Verify( 'Shazam', 'abcSh', 'N' ) -- shows: 4 say Verify( 'Shazam', 'abc', 'M' ) -- shows: 3, locates the first 'a' say Verify( 'Shazam', 'abc', 'M', 4 ) -- shows: 5 say Verify( 'Shazam', 'def', 'M' ) -- shows: 0, none of the reference characters were located say Verify( '123.45', '0123456789' ) -- shows: 4, the decimal point is not a digit say Verify( '123.45', '0123456789.' ) -- shows: 0, the decimal point is matched now say Verify( '123.45.678', '0123456789.' ) -- shows: 0, both decimal points are matched now