csharp/lines.cs - master - hahahihi/csharpTasks

csharp/lines.cs
90 строк3 KB
belovAndrey
update csharp/lines.cs
25 окт 2025, 22:06
25 окт 2025, 22:062ee53dc
using System;
using System.Collections.Generic;
using System.Text;

namespace TextAnalysis
{
    static class SentencesParserTask
    {
        public static List<List<string>> ParseSentences(string text)
        {
            if (text == null || text.Length == 0)
                return new List<List<string>>();

            var result = new List<List<string>>();
            var currentWord = new StringBuilder();
            var currentSentence = new List<string>();

            ParseCharacters(text, result, currentWord, currentSentence);
            HandleTrailingContent(result, currentWord, currentSentence);

            return result;
        }

        private static void ParseCharacters(
            string text;
            List<List<string>> result,
            StringBuilder currentWord,
            List<string> currentSentence)
        {
            for (int i = 0; i < text.Length; i++)
            {
                char ch = text[i];

                if (IsPartOfWord(ch))
                {
                    currentWord.Append(char.ToLower(ch));
                }
                else
                {
                    FlushWord(currentWord, currentSentence);
                    if (IsSentenceDelimiter(ch))
                    {
                        FlushSentence(currentSentence, result);
                    }
                }
            }
        }

        private static bool IsPartOfWord(char ch)
        {
            return char.IsLetter(ch) || ch == '\'';
        }

        private static bool IsSentenceDelimiter(char ch)
        {
            return ch == '.' || ch == '!' || ch == '?' || 
                   ch == ';' || ch == ':' || ch == '(' || ch == ')';
        }

        private static void FlushWord(StringBuilder wordBuffer, List<string> sentence)
        {
            if (wordBuffer.Length > 0)
            {
                sentence.Add(wordBuffer.ToString());
                wordBuffer.Clear();
            }
        }

        private static void FlushSentence(List<string> sentence, List<List<string>> result)
        {
            if (sentence.Count > 0)
            {
                result.Add(new List<string>(sentence));
                sentence.Clear();
            }
        }

        private static void HandleTrailingContent(
            List<List<string>> result,
            StringBuilder currentWord,
            List<string> currentSentence)
        {
            FlushWord(currentWord, currentSentence);
            if (currentSentence.Count > 0)
            {
                result.Add(currentSentence);
            }
        }
    }
}