Bring back certain number of characters before a particular letter or number

Good Morning everyone,
long time member, but have never posted!

I have a problem I just cannot solve, I have a list of data provided to me which falls like the below and is based on time spent using a system:

1h 32m 5s
54m 8s
7h 54m 4s

Is there a way I can use a formula to bring back the characters before "h" which I can change to use it for "m & s" too?
I have been fiddling with the MID and LEFT coupled with FIND but cannot get the result I need.

Using text to columns does not work in this instance as i need all the hours in one column and minutes in another and so on.
I just need a way to quickly separate the results into three columns one for H one for M and one for S??

Try this to get the hours part:

=IF(ISNUMBER(SEARCH("h",A1)),--MID(" "&A1,SEARCH("h"," "&A1)-2,2),0)

then the minutes part becomes:

=IF(ISNUMBER(SEARCH("m",A1)),--MID(" "&A1,SEARCH("m"," "&A1)-2,2),0)

and the seconds part:

=IF(ISNUMBER(SEARCH("s",A1)),--MID(" "&A1,SEARCH("s"," "&A1)-2,2),0)

Copy these down as required.

Hope this helps.

Pete

Thank you very much, not sure I'd have been able to get that!