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rustHow to make regex case insensitive in Rust?


To make regex case insensitive in Rust, you can use the i flag. This flag can be added to the end of the regex pattern. For example:

let re = Regex::new(r"(?i)hello").unwrap();

This will create a case insensitive regex pattern that will match both hello and HELLO.

Code explanation

  • Regex::new: This is a function that creates a new Regex object.
  • r"(?i)hello": This is the regex pattern. The (?i) flag makes the pattern case insensitive.
  • unwrap: This is a method that will return the Regex object if the pattern is valid, or panic if the pattern is invalid.

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