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from smolagents.tools import Tool | |
import pronouncing | |
import json | |
import string | |
class ParodyWordSuggestionTool(Tool): | |
name = "parody_word_suggester" | |
description = "Suggests rhyming funny words using CMU dictionary pronunciations." | |
inputs = {'target': {'type': 'string', 'description': 'The word you want to find rhyming alternatives for'}, 'word_list_str': {'type': 'string', 'description': 'JSON string of word list (e.g. \'["word1", "word2"]\')'}, 'min_similarity': {'type': 'string', 'description': 'Minimum similarity threshold (0.0-1.0)', 'nullable': True, 'default': '0.5'}, 'custom_phones': {'type': 'object', 'description': 'Optional dictionary of custom word pronunciations', 'nullable': True, 'default': None}} | |
output_type = "string" | |
RHYME_WEIGHT = 0.5 | |
PHONE_SEQUENCE_WEIGHT = 0.3 | |
LENGTH_WEIGHT = 0.2 | |
def _get_word_phones(self, word, custom_phones=None): | |
"""Get phones for a word, checking custom dictionary first.""" | |
if custom_phones and word in custom_phones: | |
return custom_phones[word]["primary_phones"] | |
import pronouncing | |
phones = pronouncing.phones_for_word(word) | |
return phones[0] if phones else None | |
def _get_primary_vowel(self, phones: list) -> str: | |
"""Get the primary stressed vowel from phone list.""" | |
v = "" | |
for phone in phones: | |
if '1' in phone and any(v in phone for v in 'AEIOU'): | |
return phone.rstrip('012') | |
return None | |
def _calculate_phone_sequence_similarity(self, phones1: list, phones2: list) -> float: | |
"""Calculate similarity based on matching phones in sequence.""" | |
p = "" | |
if not phones1 or not phones2: | |
return 0.0 | |
# Strip stress markers for comparison | |
clean_phones1 = [p.rstrip('012') for p in phones1] | |
clean_phones2 = [p.rstrip('012') for p in phones2] | |
matches = 0 | |
total_comparisons = max(len(clean_phones1), len(clean_phones2)) | |
# Compare phones in sequence | |
for i in range(min(len(clean_phones1), len(clean_phones2))): | |
if clean_phones1[i] == clean_phones2[i]: | |
matches += 1 | |
return matches / total_comparisons if total_comparisons > 0 else 0.0 | |
def _calculate_length_similarity(self, phones1: list, phones2: list) -> float: | |
"""Calculate similarity based on phone length.""" | |
max_length = max(len(phones1), len(phones2)) | |
length_diff = abs(len(phones1) - len(phones2)) | |
return 1.0 - (length_diff / max_length) if max_length > 0 else 0.0 | |
def _calculate_similarity(self, word1, phones1, word2, phones2): | |
"""Calculate similarity based on multiple factors.""" | |
# Initialize phone lists | |
phone_list1 = phones1.split() | |
phone_list2 = phones2.split() | |
# 1. Rhyme score (50%) - based on primary vowel | |
vowel1 = self._get_primary_vowel(phone_list1) | |
vowel2 = self._get_primary_vowel(phone_list2) | |
rhyme_score = 1.0 if vowel1 and vowel2 and vowel1 == vowel2 else 0.0 | |
# 2. Phone sequence similarity (30%) | |
phone_sequence_score = self._calculate_phone_sequence_similarity(phone_list1, phone_list2) | |
# 3. Length similarity (20%) | |
length_score = self._calculate_length_similarity(phone_list1, phone_list2) | |
# Combined weighted score | |
similarity = ( | |
(rhyme_score * self.RHYME_WEIGHT) + | |
(phone_sequence_score * self.PHONE_SEQUENCE_WEIGHT) + | |
(length_score * self.LENGTH_WEIGHT) | |
) | |
return { | |
"similarity": round(similarity, 3), | |
"rhyme_score": round(rhyme_score, 3), | |
"phone_sequence_score": round(phone_sequence_score, 3), | |
"length_score": round(length_score, 3), | |
"details": { | |
"primary_vowel1": vowel1, | |
"primary_vowel2": vowel2, | |
"phone_count1": len(phone_list1), | |
"phone_count2": len(phone_list2), | |
"matching_phones": round(phone_sequence_score * len(phone_list1)) | |
} | |
} | |
def forward(self, target: str, word_list_str: str, min_similarity: str = "0.5", custom_phones: dict = None) -> str: | |
import pronouncing | |
import string | |
import json | |
# Initialize variables | |
target = target.lower().strip(string.punctuation) | |
min_similarity = float(min_similarity) | |
suggestions = [] | |
valid_words = [] | |
invalid_words = [] | |
# Parse JSON string to list | |
try: | |
words = json.loads(word_list_str) | |
except json.JSONDecodeError: | |
return json.dumps({ | |
"error": "Invalid JSON string for word_list_str", | |
"suggestions": [] | |
}, indent=2) | |
# Get target pronunciation | |
target_phones = self._get_word_phones(target, custom_phones) | |
if not target_phones: | |
return json.dumps({ | |
"error": f"Target word '{target}' not found in dictionary or custom phones", | |
"suggestions": [] | |
}, indent=2) | |
# Filter word list | |
for word in words: | |
word = word.lower().strip(string.punctuation) | |
if self._get_word_phones(word, custom_phones): | |
valid_words.append(word) | |
else: | |
invalid_words.append(word) | |
if not valid_words: | |
return json.dumps({ | |
"error": "No valid words found in dictionary or custom phones", | |
"invalid_words": invalid_words, | |
"suggestions": [] | |
}, indent=2) | |
# Check each word | |
for word in valid_words: | |
word_phones = self._get_word_phones(word, custom_phones) | |
if word_phones: | |
similarity_result = self._calculate_similarity(word, word_phones, target, target_phones) | |
if similarity_result["similarity"] >= min_similarity: | |
suggestions.append({ | |
"word": word, | |
"similarity": similarity_result["similarity"], | |
"rhyme_score": similarity_result["rhyme_score"], | |
"phone_sequence_score": similarity_result["phone_sequence_score"], | |
"length_score": similarity_result["length_score"], | |
"phones": word_phones, | |
"is_custom": word in custom_phones if custom_phones else False, | |
"details": similarity_result["details"] | |
}) | |
# Sort by similarity score descending | |
suggestions.sort(key=lambda x: x["similarity"], reverse=True) | |
result = { | |
"target": target, | |
"target_phones": target_phones, | |
"invalid_words": invalid_words, | |
"suggestions": suggestions | |
} | |
return json.dumps(result, indent=2) | |
def __init__(self, *args, **kwargs): | |
self.is_initialized = False | |