Hi,
This must be a really easy question but for some reason I am unable to do this
I have a string name = "ERRORMSG"
I want to remove the first 2 characters in the string, so the result should be string newname = RORMSG
Please can you advice on how I can do this?
set name=$Extract(name,3,*-1)
Hello,
There is several method to do so... depending of the context of your needs... if your error msg is at the beginning of the line, in the input text or alone...
You can use extract:
set mystring = "ERRORMSG"
write $extract(mystring,3,*), !
see: https://docs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?KEY...
this method would not be used if your input string does not start with "ERRORMSG"
if you know exactly that you want to remove ER from ERRORMSG you can use $replace
set mystring = "this is an ERRORMSG"
write $replace(mystring, "ERRORMSG", "RORMSG"), !
see: https://docs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?KEY...
you can use a $piece : https://docs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?KEY...
set mystring = "this is an ERRORMSG"
set textToRemove = "ER"
write $piece(mystring,textToRemove)_$piece(mystring,textToRemove,2), !
Though this last method would have a problem is the string "ER" is repeated in the input string
I hope this help
Cheers,
Jacques
Also this option is available :
set $extract(name,1,2)=""
Perhaps tricky for someone :-)
Thank you Pavel,
I like this one ^^
Cheers,
Jacques
This answer by Pavel is the simplest way. :)
set name = "ERRORMSG"
set name = $E(name,3,$L(name))
$E(name,3,*-0)
Why "-0"?
Just "*" will be enough:
Hi Sean, thank you for replying to my request. Using the above code, I am getting just RORMS, I am not getting the last character.
$e(name,3,*-0) worked.
Thank you so much. I am grateful
you can get a full list of these type of functions here...
https://docs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?KEY=RCOS_FUNCTIONS
and a bit more information specifically on working with strings here...
https://docs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?KEY=GCOS_strings