CHECK PERCENTAGE OF VALID ENGLISH WORDS

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Create a function that calculates the percentage of valid English words in the generated text and return it.

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PLAN

1. Preprocess the generated text

   • Remove punctuation and unwanted characters from generated_text by retaining only letters and spaces. Use Use list comprehension with conditional logic to replace any non-alphabetic character or punctuation with a space and split processes text into individual words.

2. Count valid words

   • Loop through the words in the processed text and check each word against valid_words. Count the number of mathches by summing 1 for each valid word found.

3. Calculate and return the percentage

   • Calculate the total number of words in the processed text. If there are no words, return 0 to avoid division by zero, otherwise, calculate the percetage of valid words and return the result.

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DESIGN DECISIONS

1. Removing non-alphabetic characters

   • Using char.isalpha() to retain only letter and replacing other characters with spaces to ensure clean word boundaries.

2. Set-based lookups for efficiency

   • Using a set for valid_words allows for quick average-time complexity for word lookups.

3. Conditional logic to avoid division by zero

   • Checking if total_words == 0 ensures that function handles edge cases gracefully. Returning 0 to avoid the error.

4. Percentage calculation

   • Provides intuitive, percentage-based result, making it easy to interpret the percentage of valid English words in the generated text.