HELP SKIPCHAR_BACK                                  Mark Rubinstein, June 1985.

skipchar_back(character, index, string) -> false or integer

This procedure takes as argument a character (ie a small integer), an integer
and a string (or word, which will be treated as a string).  It seaches
backwards from index through the string for the first character which is not
the character given.  If every character in the string before <index> is
<character> then false is returned.  The search is started at the given
integer (index) or the end of the string if the integer is greater than the
length of the string.
For example:

    skipchar_back(`*`, 13 , '*** HELLO ***') =>
    ** 10
    skipchar_back(`*`, 3, '*** HELLO ***') =>
    ** <false>

See also * LOCCHAR_BACK, * LOCCHAR, * SKIPCHAR, * STRMEMBER, * ASCII,
    * ISSUBSTRING
