gistfile1.txt

If LEIN_JAR is not manually set by the user:

Line 3: set LEIN_VERSION
Line 5: goto SELF_INSTALL
Line 78: check %LEIN_JAR%

At this point, the script exits with this error:

  The syntax of the command is incorrect.




If LEIN_JAR is manually set by the user (to "leiningen.jar", for example):

Line 3: set LEIN_VERSION
Line 5: goto SELF_INSTALL
Line 78: check %LEIN_JAR% (assume it is not found)
...
Line 90: set LEIN_JAR to %LEIN_DIR%leiningen-%LEIN_VERSION%-standalone.jar
...
Line 92: download to the filename from line 90

Note that even though LEIN_JAR was set by the user outside of the script, the script ignores it.