最后一次匹配后的Matlab regexp，到字符串的结尾

Question

I'm trying to match everything after the last match of a character (everything after the last "\\". This code works, but I'm wondering if I can do it with a single regexp command.

filename = 'c:\apps\testing\local\blah.txt';
chunks = strread(filename,'%s','delimiter','\\');
fname = chunks{end};

Answer 1

There are two ways to solve this:

[pathName, fileName, extension] = fileparts(filename);

With regex ("after backslash, take all characters that are not a backslash ([^\\\\]*) until the end $ , returning just those characters 'tokens' and don't try to do multiple matches 'once' ")

extension = regexp(filename,'\\([^\\]*)$','tokens','once')