Created
September 22, 2014 04:08
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The special characters Regex
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| Characters Meaning | |
| $ End of a line | |
| ^ Start of a line | |
| [] Character class | |
| ? The preceding item is optional and matched at most once | |
| * Zero or more of the preceding item | |
| + One or more of the preceding item | |
| {} Match some number of the preceding item | |
| | Alternation (true if either of the regexes it separates match) | |
| . Any one character | |
| \ Escape (take the following character literally) |
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