# Coding Conventions
While you're free to use whatever coding conventions make sense for you and your existing
spreadsheets, these recommendations provide a good starting point.
## Variables and Functions
Variables and functions should be lowercase and contain only letters, numbers and underscores (`\_`).
### Good
```csvpp
foo := 1
foo_bar := "value"
fn my_long_descriptive_function(a)
a * foo
---
```
### Bad
```csvpp
FOO := 1 # not preferred, but this will compile
foo-bar := "value" # this will not compile!
# we prefer snake_case over camelCase but this will compile
fn myLongDescriptiveFunction(a)
a * foo
---
```
## Module Names
Similar to variables & functions, module names should only contain letters, numbers and underscores
and can be joined with a `/` if it resides in a sub-module.
## Indentation
Indenting with 2 spaces is preferred.