Perl Pattern-Matching Quantifiers
Part of the Perl For Dummies Cheat Sheet
Perl enables you to use common symbols to instruct the program you're writing to match data once, never, or up to a certain number of times. The following table shows you which symbol to use to get the match you want:
| Symbol | Meaning |
|---|---|
| + | Match 1 or more times |
| * | Match 0 or more times |
| ? | Match 0 or 1 time |
| {n} | Match exactly n times |
| {n,} | Match at least n times |
| {n,m} | Match at least n, but not more than m, times (these values must be less than 65,536) |
