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| # Pig Latin Translator in Python | |
| # Jonah Lawrence | |
| # January 2020 | |
| import re | |
| def translate(message: str) -> str: | |
| """translate a message to pig latin""" | |
| # common English digraphs | |
| digraphs = {"bh", "bl", "br", "bw", "ch", "chr", "cl", "cr", "cz", | |
| "dh", "dr", "dw", "fl", "fr", "fw", "gh", "gl", "gn", | |
| "gr", "kh", "kl", "kn", "kr", "kw", "lh", "ll", "ph", | |
| "pl", "pr", "ps", "pw", "qu", "rh", "sc", "sch", "schm", | |
| "schw", "scr", "sh", "shl", "shm", "shn", "shqu", "shr", | |
| "shw", "sk", "sl", "sm", "sn", "sp", "sph", "spr", | |
| "squ", "st", "str", "sw", "szch", "tch", "th", "thr", | |
| "tr", "ts", "tw", "vh", "vh", "vlwh", "wr", "xh", "zh"} | |
| def translate_word(word: str) -> str: | |
| """translate an individual word to pig latin""" | |
| # starts with a vowel | |
| if word[0].lower() in {"a", "e", "i", "o", "u"}: | |
| return word + "way" | |
| # starts with a digraph, checking lengths largest to smallest | |
| digraph_length = max(len(x) for x in digraphs) | |
| while digraph_length >= 2: | |
| if word[:digraph_length].lower() in digraphs: | |
| # move digraph to the end | |
| return word[digraph_length:] + word[:digraph_length] + "ay" | |
| # otherwise, just shift the first letter | |
| return word[1:] + word[0] + "ay" | |
| # split sentence at spaces | |
| sentence = message.split() | |
| num_words = len(sentence) | |
| # loop through words | |
| for i in range(num_words): | |
| # split non-alpha characters on ends into separate groups | |
| nonAlphaOnEnds = r"^([^a-zA-Z]*)([a-zA-Z]+)([^a-zA-Z]*)$" | |
| match = re.match(nonAlphaOnEnds, sentence[i]) | |
| # if alpha characters were found | |
| if match is not None: | |
| # translate the alpha character section | |
| translation = translate_word(match[2]) | |
| # put back the non-alpha characters on the ends | |
| sentence[i] = match[1] + translation + match[3] | |
| # insert the spaces back into the text | |
| return " ".join(sentence) |
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