<commit_before>assert(x == nil)             -- Does not fail! x is nil

s = "caf\u{e9}"
assert(#s == 5)              -- counts bytes
assert(utf8.len(s) == 4)     -- counts characters<commit_msg>Using UTF-8 in code samples now<commit_after>assert(x == nil)             -- Does not fail! x is nil

s = "café"
assert(#s == 5)              -- counts bytes
assert(utf8.len(s) == 4)     -- counts characters
{'fraction_non_alphanumeric': 0.1546134663341646, 'fraction_numerical': 0.0199501246882793, 'mean_word_length': 2.0923076923076924, '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': '5907699', 'n_tokens_mistral': 139, 'n_tokens_neox': 131, 'n_words': 40}