DebugPointer
Published on

Regex for full name

Regex for full name

A full name is a unit of information that represents one or more letters i.e., from a-z or A-Z. In this article let's understand how we can create a regex for full name and how regex can be matched for a given full name.

Regex (short for regular expression) is a powerful tool used for searching and manipulating text. It is composed of a sequence of full names that define a search pattern. Regex can be used to find patterns in large amounts of text, validate user input, and manipulate strings. It is widely used in programming languages, text editors, and command line tools.

Structure of a full name with space

The string should have the following criteria and structure-

  • a full name is a unit of information that represents one or group of letters from a-z or A-Z separated by a space.
  • It should contain first name and last name.

Regex for matching full name with space

Regular Expression for full name-

/^\w+\s\w+$/gm

Test string examples for the above regex-

Input StringMatch Output
Ram Bharatmatches
what the mandoes not match
Sita Rammatches
Shree Krishnamatches
Radha Krishnamatches

Here is a detailed explanation of the above regex-

/^\w+\s\w+$/gm

^ asserts position at start of a line
\w matches any word character (equivalent to [a-zA-Z0-9_])
+ matches the previous token between one and unlimited times, as many times as possible, giving back as needed (greedy)
\s matches any whitespace character (equivalent to [\r\n\t\f\v ])
\w matches any word character (equivalent to [a-zA-Z0-9_])
+ matches the previous token between one and unlimited times, as many times as possible, giving back as needed (greedy)
$ asserts position at the end of a line
Global pattern flags
g modifier: global. All matches (don't return after first match)
m modifier: multi line. Causes ^ and $ to match the begin/end of each line (not only begin/end of string)

Hope this article was useful to check if the name is a valid full name or not.