mber> = Numeric functions: rfindrfind ( <text>, <searchtext> )
mber> = Numeric functions: rfindrfind ( <text>, <searchtext>, <startindex> ) 
Numeric functions: findFind last occurance of Flow control: if … then Flow control: try … thenthe <searchtext> in <text>. 
Flow control: returnReturns Numeric functions: indexindex of position found Operators: Boolean Or with Variable "||=" Operators: Bitwise Or with Variable "|=" Operators: Bitwise Or "|" Operators: Boolean Or "||"or 0. 
Optionally start search Operators: Make Identifier "@"at <startindex>. Search Data Types: Text Item selector "[]": Text Glossary: text, text_valtext must be a Glossary: text, text_valtext value Operators: Boolean And with Variable "&&=" Operators: Bitwise And with Variable "&=" Operators: Bitwise And "&" Operators: Boolean And "&&"and start Numeric functions: indexindex must be a numeric Glossary: Valuevalue. Flow control: if … then Flow control: try … thenThe search starts Operators: Make Identifier "@"at Flow control: if … then Flow control: try … thenthe start Numeric functions: indexindex inclusive. 
Numeric functions: indexIndexes start Operators: Make Identifier "@"at 1. 
e.g.: 
i> Numeric functions: rfindrfind ( "hello world", "l" )  o> = 10
i> Numeric functions: rfindrfind ( "hello world", "X" )  o> = 0
i> Numeric functions: rfindrfind ( "hello world", "ll" )  o> = 3
i> Numeric functions: rfindrfind ( "hello world", "l",  6 ) o>  = 4
i> Numeric functions: rfindrfind ( "hello world", "l",  4 ) o>  = 4
i> Numeric functions: rfindrfind ( "hello world", "ll", 4 ) o>  = 3
i> Numeric functions: rfindrfind ( "hello world", "ll", 3 ) o>  = 3
i> Numeric functions: rfindrfind ( "hello world", "ll", 2 ) o>  = 0 
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