Regexp
Does not find over linebreaks.
Special characters
| Symbol | Meaning | Example |
| . | Any character | a.c => abc, azc, a5c |
| ? | zero or one of the preceding character | ab?c => abc, ac |
| * | zero or more of preceding character | ab*c => ac, abc, abbbbbbc |
| + | atleast one of the preceding character | ab+c => abc, abbbbbbbc |
| {n} | exactly n of the preceding character | ab{5}c => abbbbbc |
| {n,m} | n to m of the preceding character | ab{2,4}c => abbc, abbbbc |
| [] | Any of the characters inside the brackets | a[b e]c => abc, a c, aec |
| \ | Escape character | a\.c => a.c |
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