strings

relationalai.semantics.std

String manipulation functions.

This module provides a comprehensive set of string operations including:

• String conversion and concatenation
• Case conversion and whitespace handling
• String splitting and substring extraction
• Distance metrics
• Pattern matching and searching
• Regular expression matching

Functions

Functions exposed by this module.

string()Convert a value to a string representation.

concat()Concatenate multiple strings together.

join()Join a sequence of strings with a separator.

contains()Check whether substr is contained within s.

startswith()Check whether s starts with prefix.

endswith()Check whether s ends with suffix.

len()Get the length of the string s.

levenshtein()Compute the Levenshtein distance between two strings.

like()Check whether s matches the SQL LIKE pattern pattern.

lower()Convert the string s to lowercase.

upper()Convert the string s to uppercase.

replace()Replace occurrences of old with new in the string source.

split()Split the string s by separator, returning variables holding index and result.

split_part()Get the part of the string s at index after splitting by separator.

strip()Strip whitespace from both ends of the string s.

substring()Get the substring of s from start to stop (0-based, stop exclusive).

regex_match()Check if the value matches the given regex.

Referenced By

RelationalAI Documentation
└──  Build With RelationalAI
    └──  Understand how PyRel works > Use advanced reasoning > Rules-based reasoning
        └──  Work with strings
            └──  Understand string expressions