Find substrings within between 2 string fragments

I am trying to populate a view in PostGIS in Postgres 9.0 and in this view I want it to contain a substring based on 2 string positions. See below for my code.

CREATE OR REPLACE VIEW vw_actions AS 
 SELECT ls.f_table_schema, ls.f_table_name, 
 (SELECT substr(ls.attribute_actions_text, 
 strpos(ls.attribute_actions_text, 'name="')+6, 
 strpos(ls.attribute_actions_text, '"/>') - 
 strpos(ls.attribute_actions_text, 'name="'))) AS actions
   FROM layer_styles ls;

The outcome is that it doesn’t like minus numbers when using strpos. I can get it go forward 6 characters to remove the ‘name=”‘ from the returned substring but cannot remove the ‘”/>’.

It returns the following:

View SHED Database"/> 

where I want it return:

View SHED Database

Any suggestions would be greatly appreciated.

ADDITION:I have found out that if I was using 9.1 I could have used strposrev and i think the following code would have worked:

CREATE OR REPLACE VIEW vw_actions AS 
 SELECT ls.f_table_schema, ls.f_table_name, 
 (SELECT substr(ls.attribute_actions_text::text, 
 strpos(ls.attribute_actions_text::text, 'name="'::text)+6, 
 strposrev(ls.attribute_actions_text::text, '"/>'::text)+3 - 
 strpos(ls.attribute_actions_text::text, 'name="'::text))) AS actions
   FROM layer_styles ls;