Regular expression for allowed numbers
I want to check the following with regex
{Today,Format}
Today it will remain as it is. Instead of formatting, we can allow numbers from 0 to 12.
eg: we have to allow
{Today,0} {Today,1} {Today,2} ... {Today,12}
and also allow
{Today,} {Today,Format}
Please help me and also call me on some site to develop regex skills.
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4 answers
\{Today,(\d|1[012]|Format)?\}
Value:
- Open curly braces;
- 'Today';
- Optional one of the following: digit (0-9), 1, then 0, 1, or 2 (10,11,12), "Format"; and then
- Close curly braces.
In terms of resources, I can recommend this site in regular expressions and the book Mastering Regular Expressions .
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You can also find this list of regular expression programs . Rubular is my favorite.
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