NewDoubleArray builds a DoubleArray from a set of sequences of strings.

OpCapture pops an item and binds it to the variable.

OpConcatN pops N items from stack, concatenates them and pushes it back to stack.

OpEnd is the least postive invalid opcode.

OpLitPush pushes a component to stack if it matches to the literal.

OpNop does nothing.

OpPush pushes a component to stack.

OpPushM concatenates the remaining components and pushes it to stack.

DoubleArray is a Double Array implementation of trie on sequences of strings.

An OpCode is a opcode of compiled path patterns.