# Functions
Create returns a new IndexWriter that will write the index to file.
File returns the name of the index file to use.
Merge creates a new index in the file dst that corresponds to merging the two indices src1 and src2.
RegexpQuery returns a Query for the given regexp.
# Structs
A Buffer is a convenience wrapper: a closeable bufio.Writer.
An Index implements read-only access to a trigram index.
An IndexWriter creates an on-disk index corresponding to a set of files.
A Path is a Path stored in the index, either in the root list or the file list.
A Query is a matching machine, like a regular expression, that matches some text and not other text.