XQuery Regular Expressions: Mastering Pattern Matching and Text Manipulation in XML
Learn how to leverage the power of regular expressions within XQuery for advanced XML data processing. This tutorial explores XQuery's regular expression functions, demonstrating their use in pattern matching, text extraction, and manipulation within XML documents for creating robust and efficient XML applications.
Using Regular Expressions in XQuery
XQuery Regular Expression Functions
XQuery provides functions for working with regular expressions, enabling powerful text processing capabilities. These functions allow for pattern matching and manipulation within XML documents, enhancing the flexibility and power of XQuery expressions.
| Index | Function | Description |
|---|---|---|
| 1 | matches($input, $regex) |
Checks if the input string matches the regular expression. Returns `true` if there's a match; otherwise `false`. |
| 2 | replace($input, $regex, $string) |
Replaces parts of the input string that match the regular expression with a specified replacement string. |
| 3 | tokenize($input, $regex) |
Splits the input string into a sequence of strings based on matches to the regular expression. |
Conclusion
XQuery's regular expression functions offer a powerful way to perform pattern matching and text manipulation within XML documents, enhancing the flexibility and capabilities of XQuery expressions. Understanding these functions is essential for creating robust and efficient XML processing applications.