rtkinenc – Input encoding with fallback procedures

The rtki­nenc pack­age is func­tion­ally sim­i­lar to the stan­dard LaTeX pack­age in­pu­tenc: both set up ac­tive char­ac­ters so that an in­put char­ac­ter out­side the range of 7-bit vis­i­ble ASCII is coverted into one or more cor­re­spond­ing LaTeX com­mands. The main dif­fer­ence lies in that rtki­nenc al­lows the user to spec­ify a fall­back pro­ce­dure to use when the text com­mand cor­re­spond­ing to some in­put char­ac­ter isn't avail­able.
Names of com­mands in rtki­nenc have been se­lected so that it can read in­pu­tenc en­cod­ing def­i­ni­tion files, and the aim is that rtki­nenc should be back­wards com­pat­i­ble with in­pu­tenc. rtki­nenc is not a new ver­sion of in­pu­tenc though, nor is it part of stan­dard LaTeX.
For an ex­am­ple of how rtki­nenc is used, the user may look at the tcll­doc class.