regexp_extract Error when put { in pattern

William_Scardua
Valued Contributor

‎08-22-2023 06:33 AM

HI guys,

I tried to use the regex_extract but when I put { in pattern I received error

display(
    df_containerlog.withColumn('reg', regexp_extract(col('LogEntry'), "((^.*))({'data':)", 1))
)

 

error-regex.png

have any idea

Thank you

Preview file
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-werners-
Esteemed Contributor III

‎08-22-2023 07:23 AM

what do you want to achieve with the curly brace?  It is a regex character so you can't just add it.
If you want to match on it, you should escape it and perhaps even put it within the quotes.
You can always test your regex in online tools like regex101 or regexr or ... very handy

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Amine
Databricks Employee
Databricks Employee

‎08-22-2023 07:37 AM

Hello William,

You have to escape the { as it is a special char in case of regex.

"((^.*))(\{'data':)"