regexp - Match regular expressions in strings.
expr - regular expression to be identified in str start - index to start of each matching expr in str. finish - index to end of each matching expr in str.
Unforturnately regexp.sci has not been adapted to work in an Windows/MSDOS environment, but this only requires minor modifications to the source code.
str='bat cat can car coat court cut ct caoueaouat';
pat = 'c[aeiou]+t';
[s,f]=regexp(str,pat)
[s,f]=regexp('regexp helps you relax','\w*x\w*')