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strcnt.pro

Count number of occurrences of a substring in a string.

strcnt Text, String

result = strcnt(strn, substrn, startpos, HELP=HELP)

Return value

Number of occurances of substring in string.

Parameters

strn        in required type: string

The string in which to count occurences.

substrn        in required type: string

The substring to count occurrences of.

startpos        in required

The position at which to begin the search. If not supplied, start at beginning of string.

Keywords

HELP       

Print useful message and return.

Version history

Version

$Id: strcnt.pro 231 2007-03-19 17:15:51Z pinsard $

History

$Log: strcnt.pro,v $ Revision 1.3 1996/06/14 20:00:27 mcraig Updated Copyright info. Revision 1.2 1996/05/09 00:22:17 mcraig Added fast processing using BYTE arrays if we are counting occurences of a single character. Added error handling. Revision 1.1 1996/01/31 18:47:37 mcraig Initial revision Copyright (C) 1996 The Regents of the University of California, All Rights Reserved. Written by Matthew W. Craig. See the file COPYRIGHT for restrictions on distrubting this code. This code comes with absolutely NO warranty; see DISCLAIMER for details.

Known issues

Restrictions

Overlapping occurances are not counted separately. For example, counting occurances of 'bb' in 'blah bbb' returns one occurance.

 


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