FINDALL, SEARCH, SUB
SUB
Substitute character sequences using regex (regular expression) patterns.
PRINT SUB (“t”, “T”, “text”) ; print “Text”, replacing “t” with “T” PRINT SUB (“(.)”, “\\1\\1”, “text”) ; print “tteexxtt”, doubling every characters
SEARCH
Search character sequences patterns using regex patterns.
IF SEARCH (“\w”, word) [ PRINT “Letter in the word.” ]
FINDALL
Find all character sequences in the input string matching the given regex pattern.
PRINT FINDALL(“\w+”, “Dogs, cats.”) ; print [“Dogs”, “cats”], the list of the words