Regex match only numbers in a string

Question

Example i need take only numbers in bellow strings.

lori ipsum 1, 2 e 3 dorm kietjiojwoijdej 162, 131 e 107 m²

lori fsdfsd ipsum 2 e 3 dormitórios fsrfsrfrfrfkietjiojwoijdej 162, 131 e 107 m²

lori ipsum dfs 3 dorm kidfsrfrfrffretjiojwoijdej 62, 13 e 10 m²

lori ipsum 1 dormitórios kietjiojwoijdej 16, 31 e 107 m²

Desired output is:

[0] => 1, [1] => 2, [2] => 3

[0] => 2, [1] => 3

[0] => 3

[0] => 1

I try the follow regex:

(\d(?= dorms))|(\d(?= dormitórios))

My problem is with comma, spaces and "e" character, i dont what that in the result...

My test : regextest

The fourth bird · Accepted Answer · 2018-05-02 17:53:06Z

2

With your current regex (\d(?= dorms))|(\d(?= dormitórios)) you match only the 3 in 3 dormitórios and the 1 in 1 dormitórios because in your lookahead you specify a single whitespace followed by either dorms or | dormitórios.

You don't match the 3 in 3 dorm because you use (?= dorms) with an extra s.

Instead you could use 1 positive lookahead instead of 2 with an optional non capturing group (?:itórios)? to match both variants and add a word boundary \b before and after the word you want to match.

\d(?=.*?\bdorm(?:itórios)?\b)

Details

\d Match a single digit
(?= Non capturing group
- .*? Match any character zero or more times non greedy
- \b Word boundary
- dorm(?:itórios)? Match dorm or dormitórios
- \b Word boundary
) Close non capturing group

edited May 2, 2018 at 17:53

answered May 2, 2018 at 17:38

The fourth bird

165k16 gold badges61 silver badges75 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Regex match only numbers in a string

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related