Batch File Protocol Parser - windows

Question

My custom defined protocol (phpfile) lets me open php-files in an editor through the browser. The only problem is, it gives the full url, that is different in each browser, i've seen:
phpfile:/[file]
phpfile:/[file]/
phpfile://[file]/
phpfile://[file]
All these need to be converted to just [file]. The problem is that I get a syntax error. What is the correct syntax?
set var=%1
if("%var:~0,9%"=="phpfile:/")
{
set url = %var:~9%
}
else
{
set url = %var:~10%
}
if(%var:-1,1% == "/")
{
url = %url:~0,-1%
}
START "" "C:\Program Files (x86)\NuSphere\PhpED\7.0\phped.exe" url
=== Edit ===
I now have the following, but it is adding "" at the end of the url
SETLOCAL enabledelayedexpansion
set var=%1
if %var:~0,9%=="phpfile:/" (
set url = %var:~9%
) else (
set url = %var:~10%
)
if "%var:~-1%"=="\" (
set url = %url:~0,-1%"
)
if "%var:~-1%"=="/" (
set url = %url:~0,-1%"
)
START "" "C:\Program Files (x86)\NuSphere\PhpED\7.0\phped.exe" %url:"=%

Answer 1

That's because you wrote some horrible bastard between batch files and C but certainly no language that is in use anywhere.
Try the following:
setlocal enabledelayedexpansion
set "var=%~1"
if "!var:~0,9!=="phpfile:/" (
set "url=!var:~9!"
) else (
set "url=!var:~10!"
)
if "!var:-1,1!"=="/" (
set "url=!url:~0,-1!"
)
START "" "C:\Program Files (x86)\NuSphere\PhpED\7.0\phped.exe" "!url!"
Delayed expansion was used primarily to deal better with some characters that cause trouble in batch files. Generally though, I wonder how you would ever have expected your code to work.

Answer 2

There were quite a few problems in your code, this should fix things:
set var="%1"
if %var:~0,9%=="phpfile:/" (
set url="%var:~9%"
) else (
set url="%var:~10%"
)
if "%var:-1,1%"=="/" (
set url="%url:~0,-1%"
)
START "" "C:\Program Files (x86)\NuSphere\PhpED\7.0\phped.exe" url
You can check the syntax of batch file commands using help <command>. IF statements don't use curly braces, or require round brackets around the conditional statement.