If someone is in need to parse URIs, then the following regex handle it:
| regStr regex |
regStr :=
'((([a-z]\w+\:)', "Match URL protocol and colon"
'(/|//|///|[A-Za-z0-9%]))', "Match 1-3 slashes or
single letter or digit or %"
'|', "or"
'(((www\d)|(www\d\d)|(www\d\d\d))[.])', "match www ou
www[1-999] followed by ."
'|', "or"
'([A-Za-z0-9._\-]+[.]([a-z][a-z]|[a-z][a-z][a-z]|[a-z][a-z][a-z][a-z])/))',
"domain name"
'(([^\s()<>]+', "run of non-space, non ()<>"
'|', "or"
'\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+)', "balanced parens up to
two levels"
'(\(([^\s()<>]+|(\([^\s()<>]+\)))*\)', "end with balanced
aprens up to 2 levels"
'|', "or"
'[^\s`!()[]{};:''".,<>?«»“”‘’])'. "not a space or one of
these punct chars"
regex := RxMatcher forString: regStr.
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