Best way to extract strings

Hello,
I need to extract the value of the strings for REQUEST_GROUP_CODE and REQUEST_GROUP_APPL_SHORT_NAME. As you can see I have to deal with whitespace differences, case differences etc. I need the values between the quotes for each one. I would expect to get ACCOUNTING and AR for the first example. I am using db version 11g r1.
Thanks.
WITH TEST AS
(SELECT 'REQUEST_GROUP_CODE="ACCOUNTING" REQUEST_GROUP_APPL_SHORT_NAME="AR" TITLE="AR:AR_SRS_TITLE_ACC_RPTS"' str FROM dual
UNION ALL
SELECT 'REQUEST_GROUP_CODE = "PRINT_CONSINV"REQUEST_GROUP_APPL_SHORT_NAME = "AR"TITLE = "AR:AR_CONS_INV_WINDOW_TITLE"' FROM DUAL
UNION ALL
SELECT 'REQUEST_GROUP_CODE="JL_CO_MG_REQUEST_GROUP" REQUEST_GROUP_APPL_SHORT_NAME="JL" TITLE="JL:JL_CO_GL_MG_WINDOW_TITLE"' FROM DUAL
UNION ALL
SELECT 'Request_Group_Code="OE_CONC_PROGRAMS" Request_Group_Appl_Short_Name="OE" Title="OE:OE_SRS_TITLE_CONC_PROGRAMS"' FROM DUAL
UNION ALL
SELECT 'TITLE="INV:INV_INVENTORY_COSTS_REPORTS" USE_ORG="Y" REQUEST_GROUP_APPL_SHORT_NAME="INV" REQUEST_GROUP_CODE="INV_COST_REPORTS_GUI" PROGRAM_APPL_SHORT_NAME="BOM"' FROM DUAL
SELECT str
FROM TESTEdited by: Vortex13 on Jun 20, 2012 9:12 AM

SQL> WITH test AS
2 (SELECT 'REQUEST_GROUP_CODE="ACCOUNTING" REQUEST_GROUP_APPL_SHORT_NAME="AR" TITLE="AR:AR_SRS_TITLE_ACC_RPTS"' str FROM dual
3 UNION ALL
4 SELECT 'REQUEST_GROUP_CODE = "PRINT_CONSINV"REQUEST_GROUP_APPL_SHORT_NAME = "AR"TITLE = "AR:AR_CONS_INV_WINDOW_TITLE"' FROM DUAL
5 UNION ALL
6 SELECT 'REQUEST_GROUP_CODE="JL_CO_MG_REQUEST_GROUP" REQUEST_GROUP_APPL_SHORT_NAME="JL" TITLE="JL:JL_CO_GL_MG_WINDOW_TITLE"' FROM DUAL
7 UNION ALL
8 SELECT 'Request_Group_Code="OE_CONC_PROGRAMS" Request_Group_Appl_Short_Name="OE" Title="OE:OE_SRS_TITLE_CONC_PROGRAMS"' FROM DUAL
9 )
10 SELECT regexp_substr(str, 'REQUEST_GROUP_CODE\s*=\s*"(.*?)"', 1, 1, 'i', 1) as REQUEST_GROUP_CODE
11       , regexp_substr(str, 'REQUEST_GROUP_APPL_SHORT_NAME\s*=\s*"(.*?)"', 1, 1, 'i', 1) as REQUEST_GROUP_APPL_SHORT_NAME
12 FROM test
13 ;
REQUEST_GROUP_CODE             REQUEST_GROUP_APPL_SHORT_NAME
ACCOUNTING                     AR
PRINT_CONSINV                  AR
JL_CO_MG_REQUEST_GROUP         JL
OE_CONC_PROGRAMS               OE

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