regex crap
Using 1.*1, * is greedy - it will match all the way to the end, and then backtrack until it can match 1, leaving you with 1010000000001.
.*? is non-greedy. * will match nothing, but then will try to match extra characters until it matches 1, eventually matching 101.
All quantifiers have a non-greedy mode: .*?, .+?, .{2,6}?, and even .??.
http://www.rexegg.com/regex-quantifiers.html#cheat_sheet
https://stackoverflow.com/questions/3075130/what-is-the-difference-between-and-regular-expressions
.*? is non-greedy. * will match nothing, but then will try to match extra characters until it matches 1, eventually matching 101.
All quantifiers have a non-greedy mode: .*?, .+?, .{2,6}?, and even .??.
http://www.rexegg.com/regex-quantifiers.html#cheat_sheet
https://stackoverflow.com/questions/3075130/what-is-the-difference-between-and-regular-expressions
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