Regex Samples

Regex Samples Figures 1

Always be precise in the way you specify your data. The following question can be multiple interpreted.
Create a regular expression that matches the figures:

• 1 - 49
• 01 - 49

Of course the ^[0-4]?[0-9] is much too simple.

Matches correctly but recognize 11 first as 1 and 1

Matches correctly but recognize 11 first as 1 and 1

Matches correctly but recognize 51 as 5 and 1

Matches all correctly

Regex Samples Figures 1

Always be precise in the way you specify your data. The following question can be multiple interpreted.
Create a regular expression that matches the figures:

• 25 - 67

Matches correctly 25 - 27 but only on one line

Matches correctly all figures 25 - 67