CODEWITHSUNDEEP
regex
Antti
Antti

Reputation: 313

Regex match uppercase character until a digit is encountered

I'm trying to catch a string containing two or more uppercase characters. The end of the string is always a number. Sometimes there might be line breaks between the letters and the number, sometimes not. Here's what I have so far:

[A-Z-ÅÖÄ\s]+[^\d]

The engine is based on javascript.

Example:

Input:

ABC ABCDE XYZ
1
EFG XYZ ABC 2
not me
EFG ABC
3

Output: match1: ABC ABCDE XYZ match2: EFG XYZ ABC match3: EFG ABC

Upvotes: 2

Views: 218

Answers (2)

Bohemian
Bohemian

Reputation: 424983

Try this:

^[A-Z]{2}( *[A-Z])*(?=\s\d$)

See live demo.

Or this multi-lingual version (YMMV in JavaScript):

^\p{Lu}{2}( *\p{Lu})*(?=\s\d$)

See live demo.

This handles all uppercase letters from all languages (as suggested by your attempt that includes ÅÖÄ characters).

Neither will match "ABC fail 1".

Upvotes: 1

anubhava
anubhava

Reputation: 784998

You can use this regex in Javascript:

/^[A-Z]{2}[^]*?(?=\s*\d+$)/gm

ReGEx Demo

RegEx Description:

  • ^ - Line start
  • [A-Z]{2} - Match 2 uppercase English alphabets
  • [^]*? - Match 0 or more of any characters (including newline), lazy
  • (?=\s*\d+$) - Lookahead that asserts we have 0 or more space followed by a 1 or or more digits in the end.

Code Demo:

var str = `ABC ABCDE XYZ
1
EFG XYZ ABC 2
not me
EFG ABC
3`;

var re = /^[A-Z]{2}[^]*?(?=\s*\d+$)/gm;

var m = str.match(re);

console.log(m);

Upvotes: 2

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