214 lines
4.3 KiB
Python
214 lines
4.3 KiB
Python
"""Mapping between IPA and Espeak"""
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import re
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import unicodedata
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# http://espeak.sourceforge.net/phonemes.html
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def ipa_to_espeak(ipa: str, keep_whitespace: bool = True) -> str:
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"""Convert IPA string to eSpeak phonemes"""
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ipa_codepoints = unicodedata.normalize("NFD", ipa)
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return IPA_PATTERN.sub(
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lambda match: IPA_TO_ESPEAK.get(match.group(1), ""), ipa_codepoints
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)
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def espeak_to_ipa(espeak: str) -> str:
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"""Convert eSpeak phonemes to IPA phones"""
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# Remove brackets
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espeak_codepoints = "".join(
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c for c in unicodedata.normalize("NFD", espeak) if c not in {"[", "]"}
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)
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return ESPEAK_PATTERN.sub(
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lambda match: ESPEAK_TO_IPA.get(match.group(1), ""), espeak_codepoints
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)
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# -----------------------------------------------------------------------------
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IPA_TO_ESPEAK = {
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"\u00e6": "a",
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"\u0061": "a",
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"\u0251": "A",
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"\u0252": "A.",
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"\u028c": "V",
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"\u0250": "V",
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"\u0062": "b",
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"\u0253": "b`",
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"\u0299": "b<trl>",
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"\u03b2": "B",
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"\u0063": "c",
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"\u00e7": "C",
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"\u0063\u0327": "C",
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"\u0255": "S;",
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"\u0064": "d",
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"\u0257": "d`",
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"\u0256": "d.",
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"\u00f0": "D",
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"\u0065": "e",
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"\u0259": "@",
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"\u025a": "3",
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"\u0258": "@",
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"\u025b": "E",
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"\u025c": 'V"',
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"\u025d": "3",
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"\u025e": 'O"',
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"\u0066": "f",
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"\u0261": "g",
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"\u0067": "g",
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"\u0260": "g`",
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"\u0262": "G",
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"\u029b": "G`",
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"\u0263": "Q",
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"\u02e0": "~",
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"\u0264": "o-",
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"\u0068": "h",
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"\u02b0": "<h>",
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"\u0127": "H",
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"\u0266": "h<?>",
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"\u0267": "",
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"\u0265": "j<rnd>",
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"\u029c": "",
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"\u0069": "i",
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"\u0268": 'i"',
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"\u026a": "I",
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"\u006a": "j",
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"\u02b2": ";",
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"\u029d": "C<vcd>",
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"\u025f": "J",
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"\u0284": "J`",
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"\u006b": "k",
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"\u006c": "l",
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"\u026b": "l",
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"\u026c": "s<lat>",
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"\u026d": "l.",
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"\u026e": "z<lat>",
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"\u029f": "L",
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"\u006d": "m",
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"\u0271": "M",
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"\u026f": "u-",
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"\u0270": "Q",
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"\u006e": "n",
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"\u0272": "n^",
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"\u014b": "N",
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"\u0273": "n.",
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"\u0274": 'n"',
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"\u006f": "o",
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"\u0298": "p!",
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"\u0275": "@.",
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"\u00f8": "Y",
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"\u0153": "W",
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"\u0276": "W",
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"\u0254": "O",
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"\u0070": "p",
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"\u0278": "F",
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"\u0071": "q",
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"\u0072": "r<trl>",
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"\u027e": "R",
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"\u027c": "",
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"\u027d": "*.",
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"\u0279": "r",
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"\u027b": "r.",
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"\u027a": "*<lat>",
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"\u0280": 'r"',
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"\u0281": "r",
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"\u0073": "s",
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"\u0282": "s.",
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"\u0283": "S",
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"\u0074": "t",
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"\u0288": "t.",
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"\u03b8": "T",
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"\u0075": "u",
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"\u0289": 'u"',
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"\u028a": "U",
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"\u0076": "v",
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"\u028b": "v#",
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"\u0077": "w",
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"\u02b7": "<w>",
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"\u028d": "w<vls>",
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"\u0078": "x",
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"\u03c7": "X",
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"\u0079": "y",
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"\u028e": "l^",
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"\u028f": "I.",
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"\u007a": "z",
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"\u0291": "Z;",
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"\u0290": "z.",
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"\u0292": "Z",
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"\u0294": "?",
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"\u02a1": "",
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"\u0295": "H<vcd>",
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"\u02a2": "",
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"\u02e4": "<H>",
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"\u01c3": "c!",
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"\u01c0": "t!",
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"\u01c2": "c!",
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"\u01c1": "l!",
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"\u0320": "",
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"\u032a": "",
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"\u033a": "",
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"\u031f": "",
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"\u031d": "",
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"\u031e": "",
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"\u02c8": "'",
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"\u02cc": ",",
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"\u0329": "-",
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"\u031a": "<o>",
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"\u002e": "",
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"\u02d1": "",
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"\u0308": "",
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"\u0324": "<?>",
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"\u02d0": ":",
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"\u02bc": "`",
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"\u0325": "<o>",
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"\u030a": "",
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"\u031c": "",
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"\u0339": "",
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"\u0303": "~",
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"\u0334": "~",
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"\u0330": "",
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"\u032c": "",
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"\u0306": "",
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"\u032f": "",
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"\u033d": "",
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"\u02de": "<r>",
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"\u033b": "",
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"\u0318": "",
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"\u0319": "",
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"\u033c": "",
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"\u2197": "",
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"\u2191": "",
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"\u2198": "",
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"\u2193": "",
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#
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# Ties
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"\u0361": "",
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"\u035C": "",
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#
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# Tied symbols
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"\u0288\u0361\u0282": "tS",
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"\u0256\u0361\u0290": "dz",
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#
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# Breaks
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"|": "_::",
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"\u2016": "_::_::",
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"#": "",
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}
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ESPEAK_TO_IPA = {v: k for k, v in IPA_TO_ESPEAK.items() if v}
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# Regex disjunction in descending length order
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ESPEAK_PATTERN = re.compile(
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"({})".format(
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"|".join(re.escape(espeak) for espeak in sorted(ESPEAK_TO_IPA, reverse=True))
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)
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)
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IPA_PATTERN = re.compile(
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"({})".format(
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"|".join(re.escape(ipa) for ipa in sorted(IPA_TO_ESPEAK, key=len, reverse=True))
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)
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)
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