how to write the following regexp?

[geos]

hello,

I have the problem writing the regular expression to verify the valid
system path in the way that RegExp.$1 has to contain path up to the
parent folder of a file, and RegExp.$2 should contain a file name (or be
empty if there was no file in the path). The allowed characters are all
except \ / : * ? " < > | The problem I have is to find a smart way to
separate the file part from the rest of the path.. could you give me
some hints or maybe someone has similar solution in his arhive and could
share it?

thanks for help, would appreciate any hlp..
regards,
geos

[Yann-Erwan Perio]

geos wrote:

I have the problem writing the regular expression to verify the valid
system path in the way that RegExp.$1 has to contain path up to the
parent folder of a file, and RegExp.$2 should contain a file name (or be
empty if there was no file in the path). The allowed characters are all
except \ / : * ? " < > | The problem I have is to find a smart way to
separate the file part from the rest of the path.

If you problem is just separating the two parts, then you can do this
with or without a regular expression

function foo(fullName){
var pos=Math.max(
fullName.lastIndexOf("\/"),
fullName.lastIndexOf("\\")
);
return {
$1:fullName.substr(0,pos),
$2:fullName.substr(pos+1)
};
}

function bar(fullName) {
return new RegExp(
"^(.*)[\\\/]([^\\/:*?\"<>|]+)$"
).exec(fullName), RegExp;
}

If your problem has to do with validating the format, you could use a
filesystem object directly, that would also permit to assert the
existence of the folders/files?
HTH,
Yep.