instrrev/strrevfind

Find character in string from EOS (right-hand end)

From the string end (ie right-hand-side) finds position of the kth character matching the specified pattern.

Syntax: INSTRREV (string, pattern, [right_match_count])

Returns:
- matching position if found match
- 0 otherwise

Returns first matching position if no right_match_count specified.

NB: function name inspired from VBS. Could be renamed "strrevfind.m" to fit Matlab nomenclature. Let me know what you think.