Are you talking about naming conventions for features, alignments, etc..?
Regarding the above, here is a recommendation for you:
Any field where the user can apply a name of something, they should NEVER use a special character or a space. ONLY use numbers, letters, and underscores.
The software will let you break this rule but as you get into upper level coding, you could corrupt your program or break other commands. It is a good idea to develop this good habit now so over time as you get better you'll never have the aforementioned problem(s).
is there a chart or something that has code rules like when you have a space "" == , \\ _ [ ] ( ) ex. ?
Not that I am aware of. However, besides what Dan addressed above, if you are using these in variables, it will flag you red if you do something incorrect. You can also hover over the assignment and see the values it returns. If there is a 0 or nothing when there should be something, then you did something wrong.