Alternation and repetition

Alternation and repetition
Sequence Greedy Description
...|... - Try subpatterns in alternation.
* yes Match 0 or more times.
+ yes Match 1 or more times.
? yes Match 0 or 1 times.
{n} no Match exactly n times.
{n,} yes Match at least n times.
{n,m} yes Match at least n times but no more than m times.
*? no Match 0 or more times.
+? no Match 1 or more times.
?? no Match 0 or 1 times.
{n,}? no Match at least n times.
{n,m}? no Match at least n times but no more than m times.
{MACRO} - Include the regex MACRO in the current regex.

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