macOS Expected “,” but found end of line

[Intelligent]

Im coding a simple applescript application for personal use, so don't complain if it doing it the wrong way. Heres a line where i get an error

set path137 to quoted form of POSIX path of (choose file with prompt "Please choose a text file to perform the action on")
set text28 to text returned of (display dialog "Type in a pattern, all lines not including this pattern will be deleted"
set sedscript1 to "sed -i '@text28@!d' " & path137
do shell script sedscript1
end

Heres the exact error

AppDelegate.applescript:205: error: Expected “,” but found end of line. (-2741)
Command /usr/bin/osacompile failed with exit code 1

One thing I'm not to sure of is if i can just put the variable in sed like that or do i have do do something similar like the blabla"& path

But right now i can't even compile it because of the error

 

[Bruno09]

add : ) at the end of the second line

set path137 to quoted form of POSIX path of (choose file with prompt "Please choose a text file to perform the action on")
set text28 to text returned of (display dialog "Type in a pattern, all lines not including this pattern will be deleted")
set sedscript1 to "sed -i '@text28@!d' " & path137
do shell script sedscript1
end

 

[Intelligent]

add : ) at the end of the second line

set path137 to quoted form of POSIX path of (choose file with prompt "Please choose a text file to perform the action on")
set text28 to text returned of (display dialog "Type in a pattern, all lines not including this pattern will be deleted")
set sedscript1 to "sed -i '@text28@!d' " & path137
do shell script sedscript1
end

Oops, stupid error

Thanks i also had to put

 sed -i [B]''[/B]

instead of

 sed -i

But i can't use a variable inside sed like that, do you know how to use it? (I'm refereeing to text28).