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Is there a simple way to strip all special characters from a string?

  • June 22, 2017
  • 4 replies
  • 137 views
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For purposes of building a URL for a link, I am stripping special characters like comma, period and question mark from a string (created by a user entry):

fn-Replace({TextStart}{ItemProperty:Title}{TextEnd},{textstart},{textend},)

This is working great, but I'm wondering if there is some operator that I can use to refer to all special characters, or if there is an entirely different approach that would deliver the desired result.

Ideas?

    4 replies

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    • emha
    • Scholar
    • June 25, 2017

    imho, better option would be to use regular expression.

    where do you do it, in forms or workflow?

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    • mlauer
    • June 26, 2017

    Marian is right. Here is an example using a character class in regex replacing all characters not in class by empty string.

    ^ Match a single character not present in the list below
    [^w]
    w matches any word character (equal to [a-zA-Z0-9_])
    in place of w You can use a list of all allowed characters.

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    Nintex Partner
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    • RajeshNintex Partner
    • Nintex Partner
    • April 10, 2019

    Great...How about if i want to keep only "/"

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    • mlauer
    • April 10, 2019

    as w matches any letter, digit or underscore which is equivalent to [a-zA-Z0-9_] You can use

    [^a-zA-Z0-9_/]

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