Checking the first character of a string in Icon

You can check to see if a given string starts with a particular character or type of character using the Icon function ``any ( c, s )''.

• The first argument c must be a cset (see `Using csets to describe sets of characters in Icon').
• The second argument s is the string to be checked.
• If the first character of s is in the cset c, the ``any()'' function succeeds and produces the position after the matched character, which will be 2 in this case (the position of the second character).
• If the first character of s is not in the cset c, the ``any()'' function fails.

John Shipman, john@nmt.edu Last updated: 1996/10/29 23:55:10 UT URL: http://www.nmt.edu/tcc/help/lang/icon/any.html