working on isrword with built index

ISRWord-tests

build/0-seek.txt

build/0.txt

build/1-seek.txt

build/1.txt

build/10-seek.txt

build/10.txt

build/11-seek.txt

build/11.txt

build/12-seek.txt

build/12.txt

build/13-seek.txt

build/13.txt

build/14-seek.txt

build/14.txt

build/2-seek.txt

build/2.txt

build/3-seek.txt

build/3.txt

build/4-seek.txt