HELP LOCCHAR_BACK                                   Mark Rubinstein, June 1985.

locchar_back(character, index, string) -> index or false.

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 character and returns the
position of the character in the string or FALSE if it is not found.  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:

    locchar_back(`a`, 22, 'the cat sat on the mat') =>
    ** 21
    locchar_back(`a`, 20, 'the cat sat on the mat') =>
    ** 10
    locchar_back(`a`, 9, 'the cat sat on the mat') =>
    ** 6
    locchar_back(`a`, 5, 'the cat sat on the mat') =>
    ** <false>

See also HELP *SKIPCHAR_BACK *LOCCHAR *SKIPCHAR *STRMEMBER *ASCII
    *ISSUBSTRING
