String functions

String functions operate on string values or return string values. There are functions to test the contents of strings, extract substrings from strings, transform strings in to other strings, and to compose new strings from multiple input values.

Test contents

endswith, indexof, lastindexof, length, matches, startswith

extract

left, matchgroup, right, substring, trim

transform

lower, replaceall, upper

compose

format, spcomp, string