Instrx 
 Format 
instrx ( haystack , regex )
instrx ( haystack , regex , start )
 Description 
Check to see if the text represented by the regular expression regex is contained in the string haystack.  If it is, then this function will return the index of starting character of the first place where needle occurs.  Otherwise, this function will return 0.  You may also specify an optional starting location for the search to begin start.
 Note 
String indices begin at 1.
 Example 
print instrx("HeLLo", "[Ll]o")
print instrx("Hello, Kitti","[Ii]",10)
will display
4
12
 New To Version 
 
0.9.6.56