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Comment: Published by Scroll Versions from space DEV and version r0682

D toc

Excerpt

Removes all characters from a string that are not letters, numbers, accented Latin characters, or whitespace.

Info

NOTE: Non-Latin letters are also removed.

Tip

Tip: This function also removes common punctuation, such as the following:

Code Block
. , ! & ?

To preserve these characters, you might replace them with an alphanumeric text string. For example, the question mark might be replaced by:

Code Block
zzQUESTIONMARKzz

After the function has been applied, you can replace these strings with the original values.

 

D s
snippetBasic

Column reference example:

D lang syntax
RawWrangletrue
Typeref
showNotetrue
WrangleTextderive type:single value:removesymbols(MyName)

removesymbols(MyName)

Output: Returns the value in the MyName column value with all non-alphanumeric characters removed. 

String literal example:

D lang syntax
RawWrangletrue
Typeref
showNotetrue
WrangleTextderive type:single value:removesymbols('Héllõ, Wõrlds!?!?')

removesymbols('Héllõ, Wõrlds!?!?')

Output: Returns the string: Héllõ Wõrlds.

Wildcard example:

D lang syntax
RawWrangletrue
Typeref
showNotetrue
WrangleTextset col:* value:removesymbols($col)

removesymbols($col)

Output: Strips all non-alphanumeric or space characters from all columns in the dataset.

D s
snippetSyntax

D lang syntax
RawWrangletrue
Typesyntax
showNotetrue
WrangleTextderive type:single value:removesymbols(column_string)

removesymbols(column_string)


ArgumentRequired?Data TypeDescription
column_stringYstringName of the column or string literal to be applied to the function

D s lang notes

column_string

Name of the column or string constant to be trimmed of symbols.

  • Missing string or column values generate missing string results.
  • String constants must be quoted ('Hello, World').
  • Multiple columns and wildcards are not supported.

D s
snippetusage

Required?Data TypeExample Value
YesString literal or column referencemyColumn

D s
snippetExamples

Example - String cleanup functions together

Include Page
EXAMPLE - String Cleanup Functions
EXAMPLE - String Cleanup Functions

D s also
labelstring