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Returns the first position of a search argument from the end of source string, or 0 if it was not found. The first character in the string is considered position 1.

  1. Value to look for
  2. Index to start from (optional) - if omitted, search starts from the end of the string; index 1 is considered the first character in the string
  3. Length to search (optional) - if omitted, the rest of the string is searched


pjs.define("source", { type: 'char', length: 15, initValue: 'Dr. Doolittle' });
pjs.define("pos", { type: 'unsigned integer', length: 5, decimals: 0 });
pos = source.scanReverse('l');
return pos;
// 12