Regex replace

Supported in: Batch, Streaming

Replace a string using a regex pattern.

Expression categories: Regex, String

Declared arguments

• Expression - Input string to replace.
  Expression<String>
• Pattern - The regex pattern to match.
  Expression<String>
• Replace - Replacement string.
  Expression<String>

Output type: String

Examples

Example 1: Base case

Argument values:

• Expression: tail_number
• Pattern: (\w\w)(-)
• Replace: **-

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Example 2: Base case

Argument values:

• Expression: tail_number
• Pattern: (\w\w)(-)
• Replace: $1

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Example 3: Null case

Argument values:

• Expression: tail_number
• Pattern: regex
• Replace: foo

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Example 4: Null case

Description: Null inputs give null outputs. Argument values:

• Expression: null
• Pattern: (\w\w)(-)
• Replace: **

Output: null

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Example 5: Null case

Description: Null inputs give null outputs. Argument values:

• Expression: foo
• Pattern: bar
• Replace: null

Output: null

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