Is this not correct?
http://live-in-switzerland.com/e/faq/citizenship.html
According to this link, you have to live there for 12 years and meet community standards to be considered.
SOURCE: http://en.wikipedia.org/wiki/Swiss_citizenship
The Swiss Citizenship Law is based on the following principles:
* Triple citizenship level (Swiss Confederation, canton and community)
* Acquisition of citizenship through descent (jus sanguinis)
* Prevention of statelessness
EXCERPT:
Naturalization
The right to regular naturalization is granted not by the central government but by the cantons.
Citizenship in Switzerland may be obtained by a permanent resident who lived in Switzerland for at least 12 years (any years spent in Switzerland between the 10th and the 20th years of age count double) and lived in the country for 3 out of the last 5 years before applying for citizenship. One should be able to speak in at least one of German (preferably Swiss German), French, Italian or Romansch (depending on the community) and show the following:
integration into the Swiss way of life;
familiarity with Swiss habits, customs and
traditions;compliance with the Swiss rule of law;
no danger to Switzerland’s internal or external security.
The Swiss Government website seems to indicate that a "naturalization" process exists under their citizenship laws.