RosettaCodeData/Task/Substring/Raven/substring.raven

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define println use $s
$s print "\n" print
"0123456789" as $str
$str 3 2 extract println # at 4th pos get 2 chars
$str 8 4 extract println # at 9th pos get 4 chars (when only 1 char available)
$str 3 $str length extract println # at 4th pos get all chars to end of str
$str 3 0x7FFFFFFF extract println # at 4th pos get all chars to end of str
$str 3 -1 extract println # at 4th pos get rest of chars but last one
$str 0 -1 extract println # all chars but last one
"3" as $matchChr # starting chr for extraction
4 as $subLen # Nr chars after found starting char
$str $matchChr split as $l
"" $l 0 set $l $matchChr join
0 $subLen extract println
"345" as $matchChrs # starting chrs for extraction
6 as $subLen # Nr chars after found starting chars
$str $matchChrs split as $l
"" $l 0 set $l $matchChrs join
0 $subLen extract println