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Dennis Wall
179 PointsI can't get #4 of the teacher's notes practice examples to work :) any help?
I can get "ladybug" to match with: [fl]ad[iy] ?[rb]ug!?
and "fading rug!" to match by just adding "ng" like this: [fl]ad[iy]ng ?[rb]ug!?
But I can't get both and I don't know why!
2 Answers
Steven Parker
231,248 PointsThe first regex doesn't allow "ng", and the second one requires it.
You could make both the "n" and the "g" optional. For example:
[fl]ad[iy]n?g? ?[br]ug!?
Zaid Khan
12,769 PointsThis is how I made it look for all the test strings in one Regular Expression.
Regular Expression:
[lhf]a[dz][yi]n?g? ?s?[blr]ugs?!?
Test String:
ladybug
ladybugs
lady bugs
lazy bug
lazy lug
lazy slug
hazy slug
fading rug!
Martin Mayanja
580 PointsI just added a question mark after each character and it matched l?a?d?y?b?u?g?f?a?d?i?n?g? ?r?u?g?!?
Steven Parker
231,248 PointsBut that will match thousands of other strings as well. I think the idea is to match only the test set and reject other strings.
If you wanted to indiscriminately match anything, you can simply use 
.*
Dennis Wall
179 PointsDennis Wall
179 PointsThank you!