string-matching

Why is it that the following evaluates as True ? Dim result = "b" Like "*a*b" Thanks. EDIT: To generalize this a bit, the following returns True : "String1" Like "*AnyText1*AnyText2*AnyText???******????*String1" VBA works correctly, returning False . PowerShell works correctly, returning False : PS C:\Users\XXX> "b" -Like "*a*b" False EDIT2: The link to the bug report: https://connect.microsoft.com/VisualStudio/feedback/details/748415/a-bug-in-net-like-operator I decided, for fun, to open up ilspy to debug this :-) in this method; private static void MatchAsterisk(string Source, int

I am trying to figure out how to check if a string contains a specfic emoji. For example, look at the following two emoji: Bicyclist: http://unicode.org/emoji/charts/full-emoji-list.html#1f6b4 US Flag: http://unicode.org/emoji/charts/full-emoji-list.html#1f1fa_1f1f8 Bicyclist is U+1F6B4 , and the US flag is U+1F1FA U+1F1F8 . However, the emoji to check for are provided to me in an array like this, with just the numerical value in strings: var checkFor = new string[] {"1F6B4","1F1FA-1F1F8"}; How can I convert those array values into actual unicode characters and check to see if a string

I implemented the Damerau–Levenshtein distance in c++ but it does not give correct o/p for the input (pantera,aorta) the correct o/p is 4 but my code gives 5..... int editdist(string s,string t,int n,int m) { int d1,d2,d3,cost; int i,j; for(i=0;i<=n;i++) { for(j=0;j<=m;j++) { if(s[i+1]==t[j+1]) cost=0; else cost=1; d1=d[i][j+1]+1; d2=d[i+1][j]+1; d3=d[i][j]+cost; d[i+1][j+1]=minimum(d1,d2,d3); if(i>0 && j>0 && s[i+1]==t[j] && s[i]==t[j+1] ) //transposition { d[i+1][j+1]=min(d[i+1][j+1],d[i-1][j-1]+cost); } } } return d[n+1][m+1]; } I don't see any errors. Can someone find a problem with the

The Problem: I have an array of promises which is resolved to an array of strings . Now the test should pass if at least one of the strings matches a regular expression. Currently, I solve it using simple string concatenation: protractor.promise.all([text1, text2, text3]).then(function (values) { expect(values[0] + values[1] + values[2]).toMatch(/expression/); }); Obviously, this does not scale well and is not particularly readable. The Question: Is is possible to solve it using a custom jasmine matcher , or jasmine.any() or custom asymmetric equality tester ? You could simply use map to get a

Is there a way to do something similar to SQL's LIKE syntax on a pandas text DataFrame column, such that it returns a list of indices, or a list of booleans that can be used for indexing the dataframe? For example, I would like to be able to match all rows where the column starts with 'prefix_', similar to WHERE <col> LIKE prefix_% in SQL. You can use the Series method str.startswith (which takes a regex): In [11]: s = pd.Series(['aa', 'ab', 'ca', np.nan]) In [12]: s.str.startswith('a', na=False) Out[12]: 0 True 1 True 2 False 3 False dtype: bool You can also do the same with str.contains