Regex match numbers with commas and points

Question

I would like to match integers and floats using the re module. So if someone types one of the following input types, it should validate that it is a number:

- 1000
- 1.000
- 1,000
- ($1,000.98)
- -1.000
- 1.0
- $1,0000

Right now I am using the following:

"^[-+]?[0-9]+$"

Any help is appreciated

Answer 1

For the given input this regex should work:

^(?:[+-]|\()?\$?\d+(?:,\d+)*(?:\.\d+)?\)?$

RegEx Demo

Breakup:

• ^ - Start
• (?: - Start non-capturing group
  • [+-] - Match + or -
  • | - OR
  • \\( - Match ( )? - End non-capturing group (optional)
• \\$? - Match $ (optional)
• \\d+ - Match 1 or more digits
• (?: - Start non-capturing group
  • , - Match a comma
  • \\d+ - Match 1 or more digits
• )* - End non-capturing group (zero or more occurrence)
• (?: - Start non-capturing group
  • \\. - Match a DOT
  • \\d+ - Match 1 or more digits
• )? - End non-capturing group (optional)
• \\)? - Match a literal ) (optional) in the end
• $ - End

Answer 2

Hi I messed around on regexr.com and i got the following to match all 7 values

[0-9]?[-+.,]?[0-9]+[.]?[0-9]+

Hope this helps, and here is proof