getState give a inState, output index

BuildFromFile build ac from file

MultiPatternIndexes return the all find indexes of the content

buildTrie build trie what we need

Build a ahocorasick based on double array trie

MultiPatternSearch return all find begin end and value

getBegin return the no use begin to fill parent's children

getChildren get the parent's children from dartsBuild

readLine read file line by line and drop one line's length >4096

setBC set base and check

MultiPatternHit return is the content is hit dictionary, it will return when first find