Multi-word synonyms not been expandend as expected when using extra terms in the query

[rmerizalde]

For example, lets take the following synonym definition:

back pack=>backpack

If I search for back pack the parser expands the query as expected

+((((text:back) (text:pack))~2) (((+(text:backpack^1.2)))^1.2))

However, I used another word in my query it doesn't:

+(((text:north) (text:face) (text:back) (text:pack))~4)

I have a fix that does what I'm expecting to:

+((((text:north) (text:face) (text:back) (text:pack))~4) (((+(((text:north) (text:face) (text:backpack))~3)))^1.2))

Or "north face back pack red" returns

+((((text:north) (text:face) (text:back) (text:pack) (text:red))~5) (((+(((text:north) (text:face) (text:backpack) (text:red))~4)))^1.2))

[OkkeKlein]

Seems to work quite nicely. Thanx for the contribution.

[nolanlawson]

Thanks for bringing this to my attention. Your fix works, but it doesn't keep the performance improvements, so I rewrote it a bit instead of merging. Good find!