A common problem in the publishing industry is the construction of an index for a book. One tool to simplify this process is apply a KWIC program to the text. KWIC is an acronym for “Key Word in...

A common problem in the publishing industry is the construction of an index for a book. One tool to simplify this process is apply a KWIC program to the text. KWIC is an acronym for “Key Word in Context”. This program will find every use of a word in a document and print a sorted list showing each of those uses with three words before and three words after. For this question, write a program that reads a text from a file and outputs a KWIC list. This is an exercise in the use of the associative containers, string, and string stream classes in C++.