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# Most Common Rhyme Schemas
RHYME_SCHEMES = ["ABAB", "ABBA",
"XAXA", "ABCB",
"AABB", "AABA",
"AAAA", "AABC",
'XXXX', 'AXAX',
"AABBCC", "AABCCB",
"ABABCC", 'AABCBC',
"AAABAB", "ABABXX"
"ABABCD", "ABABAB",
"ABABBC", "ABABCB",
"ABBAAB","AABABB",
"ABCBBB",'ABCBCD',
"ABBACC","AABBCD",
None]
NORMAL_SCHEMES = ["ABAB", "ABBA", "AABB", "AABBCC", "ABABCC", "ABBACC", "ABBAAB"]
# First 200 Most common endings
VERSE_ENDS = ['ní', 'ou', 'em', 'la', 'ch', 'ti', 'tí', 'je', 'li', 'al', 'ce', 'ky', 'ku', 'ně', 'jí', 'ly', 'il', 'en', 'né',
'lo', 'ne', 'vá', 'ny', 'se', 'na', 'ím', 'st', 'le', 'ný', 'ci', 'mi', 'ka', 'ná', 'lí', 'cí', 'ží', 'čí', 'ám',
'hu', 'ho', 'ří', 'dí', 'nu', 'dy', 'ší', 'ví', 'du', 'ta', 'as', 'tě', 'ře', 'ru', 'vé', 'ým', 'at', 'ek', 'el',
'te', 'tu', 'ká', 'ji', 'ět', 'ni', 'še', 'vy', 'dá', 'it', 'tá', 'ty', 'lý', 'lá', 'mu', 'va', 'ém', 'ěl', 'no',
'že', 'vu', 'ál', 'há', 'ků', 'vý', 'bě', 'hy', 'lé', 'sy', 'me', 'es', 'ra', 'ak', 'ad', 'ry', 'zí', 'et', 'rá',
'de', 'vě', 'ři', 'lu', 'át', 'da', 'ko', 'ha', 'té', 'to', 'ed', 'ít', 'ký', 'ši', 'íš', 'sí', 'íc', 'ze', 'si',
'be', 'má', 'mě', 'by', 'su', 'tý', 'ej', 'či', 'če', 'my', 'ké', 'án', 'ma', 'ům', 'or', 'nů', 'áš', 'dě', 'ec',
'mí', 'ev', 'ád', 'ut', 'am', 'yl', 'ul', 'tů', 'bu', 'ás', 'ba', 'ud', 'ář', 'ie', 'od', 'pí', 'ůj', 'eš', 'hý',
'bí', 'íž', 'dé', 'an', 'sa', 've', 'lů', 'ín', 'id', 'in', 'mů', 'di', 'hů', 'ic', 'on', 'eň', 'zy', 'ol', 'vo',
'ži', 'sů', 'ík', 'vi', 'oj', 'uk', 'uh', 'oc', 'iž', 'sá', 'ěv', 'dý', 'av', 'iv', 'rů', 'ot', 'py', 'mé', 'um',
'zd', 'dů', 'ar', 'rý', 'aň', 'sk', 'ok', 'om', 'už', 'ěk', 'ov', 'er', 'uď', 'bi', 'áz', 'ýt', 'ěm', 'ik', 'eď',
'ob', 'ák', 'ůh', 'ár', 'sť', 'ro', 'yt', 'ěj', 'mý', 'us', 'ěn', 'ii', 'hé', 'áj', 'pá', 'íh', 'ih', 'zi', 'bá',
'eč', 'ré', 'ír', 'ců', 'uj', 'dl', 'áh', 'ův', 'aj', 'eh', 'éž', 'pu', 'ýš', 'zu', 'im', 're', 'up', 'os', 'ah',
'rt', 'mo', 'áň', 'sl', 'íl', 'cy', 'ys', 'hl', 'oh', 'ěz', 'ěs', 'ež', 'ií', 'vů', 'kl', 'az', 'cý', 'pe', 'ěd',
'do', 'yn', 'šť', 'ez', 'ůl', 'ub', 'ln', 'yk', 'pý', 'ěc', 'ať', 'já', 'op', 'eb', 'áč', 'ív', 'áv', 'jů', 'sý',
'is', ' a', 'iť', 'ěř', 'za', 'uť', 'ěh', 'pě', 'íp', 'áž', 'ěď', 'bů', 'ep', 'iš', 'yš', 'ia', 'pa', 'un', 'ěť',
'pů', 'eř', 'tr', 'nt', 'pi', 'tl', 'eť', 'ju', 'oď', 'řů', 'ýr', 'rh', 'ur', 'zý', 'ěž', 'ýn', 'ip', 'bý', 'pé',
'íň', 'zů', 'čů', 'uč', 'éb', 'ap', 'ón', 'uř', 'ůr', 'íř', 'ač', 'co', 'íč', 'až', 'ls', 'ůž', 'ěr', 'oč', 'ič',
'ař', 'ěš', 'uv', 'ůz', 'oň', 'bé', 'sé', 'yč', 'áť', 'jď', 'ri', 'íť', 'oš', 'ůň', 'ék', 'uc', 'rk', 'bo', 'ýl',
'oť', 'íz', 'lh', 'so', 'áb', 'ja', 'ij', 'ůn', 'rv', 'žů', 'ab', 'he', 'íd', 'ér', 'uš', 'ýž', 'fá', 'rs', 'rn',
'iz', 'ib', 'ki', 'éd', 'év', 'rd', 'yb', 'oz', 'oř', 'ét', 'ož', 'ga', 'yň', 'rp', 'nd', 'of', 'rť', 'iď', 'ýv',
'yz', None]
# Years to bucket to
POET_YEARS_BUCKETS = [1800, 1820, 1840, 1860, 1880, 1900, 1920, 1940, 1960, None]
# Possible Meter Types
METER_TYPES = ["J","T","D","A","X","Y","N","H","P", None]
# Translation of Meter to one char types
METER_TRANSLATE = {
"J":"J",
"T":"T",
"D":"D",
"A":"A",
"X":"X",
"Y":"Y",
"hexameter": "H",
"pentameter": "P",
"N":"N"
}
# Tokenizers Special Tokens
PAD = "<|PAD|>"
UNK = "<|UNK|>"
EOS = "<|EOS|>"
# Basic Characters to consider in rhyme and syllables (43)
VALID_CHARS = [""," ",'a','á','b','c','č','d','ď','e','é','ě',
'f','g','h','i','í','j','k','l','m','n','ň',
'o','ó','p','q','r','ř','s','š','t','ť','u',
'ú','ů','v','w','x','y','ý','z','ž']
import re
import numpy as np
class TextManipulation:
"""Static class for string manipulation methods
Returns:
_type_: str returned by all methods
"""
@staticmethod
def _remove_most_nonchar(raw_text, lower_case=True):
"""Remove most non-alpha non-whitespace characters
Args:
raw_text (str): Text to manipulate
lower_case (bool, optional): If resulting text should be lowercase. Defaults to True.
Returns:
str: Cleaned up text
"""
text = re.sub(r'[–\„\“\’\;\:()\]\[\_\*\‘\”\'\-\—\"]+', "", raw_text)
return text.lower() if lower_case else text
@staticmethod
def _remove_all_nonchar(raw_text):
"""Remove all possible non-alpha characters
Args:
raw_text (str): Text to manipulate
Returns:
str: Cleaned up text
"""
sub = re.sub(r'([^\w\s]+|[0-9]+)', '', raw_text)
return sub
@staticmethod
def _year_bucketor(raw_year):
"""Bucketizes year string to boundaries, Bad inputs returns NaN string
Args:
raw_year (str): Year string to bucketize
Returns:
_type_: Bucketized year string
"""
if TextAnalysis._is_year(raw_year) and raw_year != "NaN":
year_index = np.argmin(np.abs(np.asarray(POET_YEARS_BUCKETS[:-1]) - int(raw_year)))
return str(POET_YEARS_BUCKETS[year_index])
else:
return "NaN"
class TextAnalysis:
"""Static class with methods of analysis of strings
Returns:
Union[str, bool, dict, numpy.ndarray]: Analyzed input
"""
# Possible Keys if returned type is dict
POET_PARAM_LIST = ["RHYME", "YEAR", "METER", "LENGTH", "END", "TRUE_LENGTH", "TRUE_END"]
@staticmethod
def _is_meter(meter:str):
"""Return if string is meter type
Args:
meter (str): string to analyze
Returns:
bool: If string is meter type
"""
return meter in METER_TYPES[:-1]
@staticmethod
def _is_year(year:str):
"""Return if string is year or special NaN
Args:
year (str): string to analyze
Returns:
bool: If string is year or special NaN
"""
return (year.isdigit() and int(year) > 1_000 and int(year) < 10_000) or year == "NaN"
@staticmethod
def _rhyme_like(rhyme:str):
"""Return if string is structured like rhyme schema
Args:
rhyme (str): string to analyze
Returns:
bool: If string is structured like rhyme schema
"""
return (rhyme.isupper() and len(rhyme) >= 3 and len(rhyme) <= 6)
@staticmethod
def _rhyme_vector(rhyme:str) -> np.ndarray:
"""Create One-hot encoded rhyme schema vector from given string
Args:
rhyme (str): string to construct vector from
Returns:
numpy.ndarray: One-hot encoded rhyme schema vector
"""
rhyme_vec = np.zeros(len(RHYME_SCHEMES))
if rhyme in RHYME_SCHEMES:
rhyme_vec[RHYME_SCHEMES.index(rhyme)] = 1
else:
rhyme_vec[-1] = 1
return rhyme_vec
@staticmethod
def _rhyme_or_not(rhyme_str:str) -> np.ndarray:
"""Create vector if given rhyme string is in our list of rhyme schemas
Args:
rhyme_str (str): string to construct vector from
Returns:
numpy.ndarray: Boolean flag vector
"""
rhyme_vector = np.zeros(2)
if rhyme_str in RHYME_SCHEMES:
rhyme_vector[0] = 1
else:
rhyme_vector[1] = 1
return rhyme_vector
@staticmethod
def _metre_vector(metre: str) -> np.ndarray:
"""Create One-hot encoded metre vector from given string
Args:
metre (str): string to construct vector from
Returns:
numpy.ndarray: One-hot encoded metre vector
"""
metre_vec = np.zeros(len(METER_TYPES))
if metre in METER_TYPES:
metre_vec[METER_TYPES.index(metre)] = 1
else:
metre_vec[-2] = 1
return metre_vec
@staticmethod
def _first_line_analysis(text:str):
"""Analysis of parameter line for RHYME, METER, YEAR
Args:
text (str): parameter line string
Returns:
dict: Dictionary with analysis result
"""
line_striped = text.strip()
if not line_striped:
return {}
poet_params = {}
# Look for each possible parameter
for param in line_striped.split():
if TextAnalysis._is_meter(param):
poet_params["METER"] = param
elif TextAnalysis._is_year(param):
# Year is Bucketized so to fit
poet_params["YEAR"] = TextManipulation._year_bucketor(param)
elif TextAnalysis._rhyme_like(param):
poet_params["RHYME"] = param
return poet_params
@staticmethod
def _is_line_length(length:str):
"""Return if string is number of syllables parameter
Args:
length (str): string to analyze
Returns:
bool: If string is number of syllables parameter
"""
return length.isdigit() and int(length) > 1 and int(length) < 100
@staticmethod
def _is_line_end(end:str):
"""Return if string is valid ending syllable/sequence parameter
Args:
end (str): string to analyze
Returns:
bool: If string is valid ending syllable/sequence parameter
"""
return end.isalpha() and len(end) <= 5
@staticmethod
def _continuos_line_analysis(text:str):
"""Analysis of Content lines for LENGTH, TRUE_LENGTH, END, TRUE_END
Args:
text (str): content line to analyze
Returns:
dict: Dictionary with analysis result
"""
# Strip line of most separators and look if its empty
line_striped = TextManipulation._remove_most_nonchar(text).strip()
if not line_striped:
return {}
line_params = {}
# Look for parameters in Order LENGTH, END, TRUE_LENGTH, TRUE_END
if TextAnalysis._is_line_length(line_striped.split()[0]):
line_params["LENGTH"] = int(line_striped.split()[0])
if len(line_striped.split()) > 1 and TextAnalysis._is_line_end(line_striped.split()[1]):
line_params["END"] = line_striped.split()[1]
if len(line_striped.split()) > 3:
line_params["TRUE_LENGTH"] = len(SyllableMaker.syllabify(" ".join(line_striped.split()[3:])))
# TRUE_END needs only alpha chars, so all other chars are removed
line_only_char = TextManipulation._remove_all_nonchar(line_striped).strip()
if len(line_only_char) > 2:
line_params["TRUE_END"] = SyllableMaker.syllabify(line_only_char)[-1]
return line_params
@staticmethod
def _is_param_line(text:str):
"""Return if line is a Parameter line (Parameters RHYME, METER, YEAR)
Args:
text (str): line to analyze
Returns:
bool: If line is a Parameter line
"""
line_striped = text.strip()
if not line_striped:
return False
small_analysis = TextAnalysis._first_line_analysis(line_striped)
return "RHYME" in small_analysis.keys() or "METER" in small_analysis.keys() or "YEAR" in small_analysis.keys()
# NON-Original code!
# Taken from Barbora Štěpánková
class SyllableMaker:
"""Static class with methods for separating string to list of Syllables
Returns:
list: List of syllables
"""
@staticmethod
def syllabify(text : str) -> list[str]:
words = re.findall(r"[aábcčdďeéěfghiíjklmnňoópqrřsštťuúůvwxyýzžAÁBCČDĎEÉĚFGHIÍJKLMNŇOÓPQRŘSŠTŤUÚŮVWXYÝZŽäöüÄÜÖ]+", text)
syllables : list[str] = []
i = 0
while i < len(words):
word = words[i]
if (word.lower() == "k" or word.lower() == "v" or word.lower() == "s" or word.lower() == "z") and i < len(words) - 1 and len(words[i + 1]) > 1:
i += 1
word = word + words[i]
letter_counter = 0
# Get syllables: mask the word and split the mask
for syllable_mask in SyllableMaker.__split_mask(SyllableMaker.__create_word_mask(word)):
word_syllable = ""
for character in syllable_mask:
word_syllable += word[letter_counter]
letter_counter += 1
syllables.append(word_syllable)
i += 1
return syllables
@staticmethod
def __create_word_mask(word : str) -> str:
word = word.lower()
vocals = r"[aeiyouáéěíýóůúäöü]"
consonants = r"[bcčdďfghjklmnňpqrřsštťvwxzž]"
replacements = [
#double letters
('ch', 'c0'),
('rr', 'r0'),
('ll', 'l0'),
('nn', 'n0'),
('th', 't0'),
# au, ou, ai, oi
(r'[ao]u', '0V'),
(r'[ao]i','0V'),
# eu at the beginning of the word
(r'^eu', '0V'),
# now all vocals
(vocals, 'V'),
# r,l that act like vocals in syllables
(r'([^V])([rl])(0*[^0Vrl]|$)', r'\1V\3'),
# sp, st, sk, št, Cř, Cl, Cr, Cv
(r's[pt]', 's0'),
(r'([^V0lr]0*)[řlrv]', r'\g<1>0'),
(r'([^V0]0*)sk', r'\1s0'),
(r'([^V0]0*)št', r'\1š0'),
(consonants, 'K')
]
for (original, replacement) in replacements:
word = re.sub(original, replacement, word)
return word
@staticmethod
def __split_mask(mask : str) -> list[str]:
replacements = [
# vocal at the beginning
(r'(^0*V)(K0*V)', r'\1/\2'),
(r'(^0*V0*K0*)K', r'\1/K'),
# dividing the middle of the word
(r'(K0*V(K0*$)?)', r'\1/'),
(r'/(K0*)K', r'\1/K'),
(r'/(0*V)(0*K0*V)', r'/\1/\2'),
(r'/(0*V0*K0*)K', r'/\1/K'),
# add the last consonant to the previous syllable
(r'/(K0*)$', r'\1/')
]
for (original, replacement) in replacements:
mask = re.sub(original, replacement, mask)
if len(mask) > 0 and mask[-1] == "/":
mask = mask[0:-1]
return mask.split("/")
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