Implement TEXTAFTER function

[Jython1415]

Overview

Implement the TEXTAFTER function for the named-functions library.

Description

Returns text that occurs after a given character or string.

Value Proposition

• Complements existing text functions in the library
• Common use case for parsing structured text (e.g., extracting domain from email, getting text after delimiter)
• Pairs well with TEXTBEFORE for comprehensive text extraction capabilities

Priority

HIGH

Category

Text Manipulation

Implementation Notes

• Should handle cases where delimiter is not found
• Consider parameter for instance number (e.g., 2nd occurrence)
• Consider parameter for match mode (case-sensitive/insensitive)
• Should handle edge cases like empty strings

Related

Part of Excel function implementation initiative (#51)

[Jython1415]

Already implemented in commit d64e522. The TEXTAFTER function is available at formulas/textafter.yaml with full support for:

• Instance number (forward/backward search)
• Match mode (case-sensitive/insensitive)
• Match end handling
• Custom error values

Closing as complete.