411 REFERENCE · Wikibooks
Erlang Programming/Using regexp
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Regular Expressions
2> re:run("hello world","w.+d").
{match,[{6,5}]}
The regular expression, "w.+d" matches the string, "hello world" at location 6 for 5 chars.
9> re:replace("10203040","([2-4]0)+","01",[{return,list}]).
"1001"
Makes a substitution, replacing "203040" with "01".