Usage of String.replace?

[Eiji]

@owaisqayum: You can use ^ (negation character) like:

sentence = "Hello, world ... 123 *** ^%&*())^% %%:>"
String.replace(sentence, ~r/[^0-9a-zA-Z ]/, " ")

Here is my another post with many helpful examples:

Removing spaces and characters from string

@script Depends for your use case there are few solutions. For some of them Regex is not even required. Answering your question without directly: String.replace("1000 cfu/ml", ~r"[a-z /]", "") Here are some example other solutions: #1 String.slice/3: string = "1000 cfu/ml" String.slice(string, 0, String.length(string) - 7) #2 String.split/2: "1000 cfu/ml" |> String.split(" ") |> List.first() #3 not integer Regex: "1000 cfu/ml" |> String.split(~r"[^\d]", trim: true) |> List.first() #4 I…

On pages for testing regular expressions you may find some references. For example here:

regex101: build, test, and debug regex

at the bottom of page you can search by not and you would have few interesting suggestions.

A CHARACTER NOT IN THE RANGE A-Z
[^a-z] Matches any characters except those in the range a-z.

/[^a-z]+/g
Anything but a-z.