I got a CSV dump from SQL Server 2008 that has lines like this:
Plumbing,196222006P,REPLACE LEAD WATER SERVICE W/1\" COPPER,1996-08-09 00:00:00
Construction,1971
If your CSV doesn't ever use a double quote as a legitimate quoting character, tweak the options to CSV to pass :quote_char => "\0"
and then you can do this (wrapped strings for clarity)
1.9.3p327 > puts 'Construction,197133031B,"MORGAN SHOES" ALT,
1997-05-13 00:00:00'.parse_csv(:quote_char => "\0")
Construction
197133031B
"MORGAN SHOES" ALT
1997-05-13 00:00:00
1.9.3p327 > puts 'Plumbing,196222006P,REPLACE LEAD WATER SERVICE W/1" COPPER,
1996-08-09 00:00:00'.parse_csv(:quote_char => "\0")
Plumbing
196222006P
REPLACE LEAD WATER SERVICE W/1" COPPER
1996-08-09 00:00:00