Text processing

Module regex

Regular expressions.

re(s)

Obtain a regular expression from a string representation s.

r.match(s)

Return true if r matches s, else false.

r.list(s)

Return the list of non-overlapping matches.

r.split(s)

Split the string s into parts, using pattern r as a separator.

r.groups(s)

Return the list of groups if r matches s, else null.

r.replace(s,f)

Replace every non-overlapping match x with f(x).