[BUG] Cannot parser args correctly in fzn-choco

[zy-nesime]

The bug happend in "fzn-choco" script at master branch, located at "parsers/src/main/minizinc/fzn-choco".

First, i try the command bash fzn-choco -jar choco-parsers-4.10.14-light.jar output.fzn

then it output:

"-jar" is not a valid option
ChocoFZN [options...] file
 file                                   : File to parse.
 -a (--all)                             : Search for all solutions (default:
                                          false). (default: false)
(......)

Second, i modify the script and make it print the finally command it will run.

bash fzn-choco -jar choco-parsers-4.10.14-light.jar output.fzn

java -server -Xss64M -Xms2G -Xmx8G -XX:NewSize=512M -cp .:choco-parsers-4.10.14-light.jar org.chocosolver.parser.flatzinc.ChocoFZN  -limit=[-1,-1sols] -lvl COMPET "-jar"

Obviously, the script parser the "--jar" as file path.

The error caused at line 61. May be we should move FILE="$1" after case switch.

I fork and fix the issue. I read the CONTRIBUTING.md and there no more details about modify a shell script. So, can i make a PR about this issue directly?

[cprudhom]

Thank you for the bug reporting. Indeed, the last commit on this file change the order of the parameter and was not compliant with the expectations. I just encountered the same problem this morning, before reading the issue and came to the same patch.

I am not able to test the fzn-choco.exe file but I suppose the same error occurs.

I'll push your correction for the bash version and wait for a windows user to test the other one.

[cprudhom]

Related to #1097