<commit_before># Letter

Letter is a simple LISP-like programming language that supports functions,
dynamic scope, and local variables.

There are no types; Letter only has machine integers.

```scheme
(def fact (n)
    (if (= n 0)
        1
        (* n (fact (- n 1)))))

(fact 8)
```

## Statements

* `def`
    * Adds a function into the global function environment.

* `do`
    * Opens a new scope. Allows sequencing multiple expressions.
    * Always evaluates to the result of the last expression inside it.

* `if`
    * Evaluates the first argument. If it's 1, evaluates and yields the
      2nd argument. Otherwise, evaluates and yields the 3rd argument.

* `print`
    * Prints the argument to the console and yields its evaluated result.<commit_msg>Updated documentation for type change<commit_after># Letter

Letter is a simple LISP-like programming language that supports functions,
dynamic scope, and local variables.

There are no types; Letter only has integers.

```scheme
(def fact (n)
    (if (= n 0)
        1
        (* n (fact (- n 1)))))

(fact 8)
```

## Statements

* `def`
    * Adds a function into the global function environment.

* `do`
    * Opens a new scope. Allows sequencing multiple expressions.
    * Always evaluates to the result of the last expression inside it.

* `if`
    * Evaluates the first argument. If it's 1, evaluates and yields the
      2nd argument. Otherwise, evaluates and yields the 3rd argument.

* `print`
    * Prints the argument to the console and yields its evaluated result.
{'fraction_non_alphanumeric': 0.08452535760728218, 'fraction_numerical': 0.009102730819245773, 'mean_word_length': 3.1594594594594594, 'pattern_counts': {'":': 0, '<': 3, '<?xml version=': 0, '>': 3, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '4749884', 'n_tokens_mistral': 457, 'n_tokens_neox': 422, 'n_words': 208}