Match strings with Match_Pattern

[Former Member]

Match pattern is a function in validation transform. It is used to match the input strings. This function can be used to compare alphabets (a-z, A-Z), numbers (0-9) and special characters.

Match_pattern cannot be used to match sub-strings.

Syntax

match_pattern(input_string,pattern_string)

Here,

input_string is the string to be matched. It could be alphabets, numbers, etc.

pattern_string is the pattern that you want to find in the whole string.

Return value

The return value for this function is 0 or 1.

If the return value is 1 then the input string matches.

If the return value is 0 then the input string does not match.

The below table shows the examples with patterns:

Pattern with examples	Use	Result
print(match_pattern(‘Janani’, ‘Xxxxxx’));	x - Used for lowercase alphabets.	Return value:1
print(match_pattern(‘JANANI’, ‘Xxxxxx’));   print(match_pattern(‘JANANI’, ‘XXXXXX’));	X – Used for uppercase letters.	Return value: 0 Return value:1
print(Match_pattern('Jeni Krish', 'Xxxx Xxxxx'));		Return value:1
print(Match_pattern(123,999));	9 - Used for numbers	Return value:1
print(match_pattern('jeni4','jeni[!\3]')); print(match_pattern('jeni3','jeni[!\3]'));	\  - Escape character. It is used to avoid a number specifically.	Return value:1 since number 3 is not found in the string. Return value: 0 since number 3 is found in the string.
print(match_pattern('janani','*'));	*- Used for characters appearing 0 or more times.	Return value:1
print(match_pattern('a1','a?')); print(match_pattern('a1sdf','a?'));	? -- Characters occurring one and only once	Return value: 1 since after the character a only one character should appear. Return value: 0 since after the character a many characters appear.
print(match_pattern('a1','a[123]')); print(match_pattern('a4','a[123]'));	[ ]-- Characters occurring inside the braces only one time.	Return value: 1 since character 1 is in the list of pattern string. Return value: 0 since character 4 is not in the list of pattern string.
print(match_pattern('Akash' , '[!A]' ));	[!]--Any character but not the characters that appears after the exclamation point. Eg: (i.e. [!AB] can allow any, say Name, that does not start with a A or B.	Return value: 0 since string starting with alphabet A should be avoided.