fix: merge submodule 'Lab4'

Lab4/.editorconfig

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+root=true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_style = tab
+indent_size = 2 
+insert_final_newline = true 
+trim_trailing_whitespace = true
+
+[*.cs]
+indent_style = space
+indent_size = 4 
+

Lab4/.gitignore

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+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+##
+## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore
+
+# User-specific files
+*.rsuser
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# User-specific files (MonoDevelop/Xamarin Studio)
+*.userprefs
+
+# Mono auto generated files
+mono_crash.*
+
+# Build results
+[Dd]ebug/
+[Dd]ebugPublic/
+[Rr]elease/
+[Rr]eleases/
+x64/
+x86/
+[Ww][Ii][Nn]32/
+[Aa][Rr][Mm]/
+[Aa][Rr][Mm]64/
+bld/
+[Bb]in/
+[Oo]bj/
+[Ll]og/
+[Ll]ogs/
+
+# Visual Studio 2015/2017 cache/options directory
+.vs/
+# Uncomment if you have tasks that create the project's static files in wwwroot
+#wwwroot/
+
+# Visual Studio 2017 auto generated files
+Generated\ Files/
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+
+# NUnit
+*.VisualState.xml
+TestResult.xml
+nunit-*.xml
+
+# Build Results of an ATL Project
+[Dd]ebugPS/
+[Rr]eleasePS/
+dlldata.c
+
+# Benchmark Results
+BenchmarkDotNet.Artifacts/
+
+# .NET Core
+project.lock.json
+project.fragment.lock.json
+artifacts/
+
+# ASP.NET Scaffolding
+ScaffoldingReadMe.txt
+
+# StyleCop
+StyleCopReport.xml
+
+# Files built by Visual Studio
+*_i.c
+*_p.c
+*_h.h
+*.ilk
+*.meta
+*.obj
+*.iobj
+*.pch
+*.pdb
+*.ipdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*_wpftmp.csproj
+*.log
+*.tlog
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.svclog
+*.scc
+
+# Chutzpah Test files
+_Chutzpah*
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opendb
+*.opensdf
+*.sdf
+*.cachefile
+*.VC.db
+*.VC.VC.opendb
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+*.sap
+
+# Visual Studio Trace Files
+*.e2e
+
+# TFS 2012 Local Workspace
+$tf/
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+*.DotSettings.user
+
+# TeamCity is a build add-in
+_TeamCity*
+
+# DotCover is a Code Coverage Tool
+*.dotCover
+
+# AxoCover is a Code Coverage Tool
+.axoCover/*
+!.axoCover/settings.json
+
+# Coverlet is a free, cross platform Code Coverage Tool
+coverage*.json
+coverage*.xml
+coverage*.info
+
+# Visual Studio code coverage results
+*.coverage
+*.coveragexml
+
+# NCrunch
+_NCrunch_*
+.*crunch*.local.xml
+nCrunchTemp_*
+
+# MightyMoose
+*.mm.*
+AutoTest.Net/
+
+# Web workbench (sass)
+.sass-cache/
+
+# Installshield output folder
+[Ee]xpress/
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.[Pp]ublish.xml
+*.azurePubxml
+# Note: Comment the next line if you want to checkin your web deploy settings,
+# but database connection strings (with potential passwords) will be unencrypted
+*.pubxml
+*.publishproj
+
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+# in these scripts will be unencrypted
+PublishScripts/
+
+# NuGet Packages
+*.nupkg
+# NuGet Symbol Packages
+*.snupkg
+# The packages folder can be ignored because of Package Restore
+**/[Pp]ackages/*
+# except build/, which is used as an MSBuild target.
+!**/[Pp]ackages/build/
+# Uncomment if necessary however generally it will be regenerated when needed
+#!**/[Pp]ackages/repositories.config
+# NuGet v3's project.json files produces more ignorable files
+*.nuget.props
+*.nuget.targets
+
+# Nuget personal access tokens and Credentials
+# nuget.config
+
+# Microsoft Azure Build Output
+csx/
+*.build.csdef
+
+# Microsoft Azure Emulator
+ecf/
+rcf/
+
+# Windows Store app package directories and files
+AppPackages/
+BundleArtifacts/
+Package.StoreAssociation.xml
+_pkginfo.txt
+*.appx
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+
+# Visual Studio cache files
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+*.[Cc]ache
+# but keep track of directories ending in .cache
+!?*.[Cc]ache/
+
+# Others
+ClientBin/
+~$*
+*~
+*.dbmdl
+*.dbproj.schemaview
+*.jfm
+*.pfx
+*.publishsettings
+orleans.codegen.cs
+
+# Including strong name files can present a security risk
+# (https://github.com/github/gitignore/pull/2483#issue-259490424)
+#*.snk
+
+# Since there are multiple workflows, uncomment next line to ignore bower_components
+# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
+#bower_components/
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file
+# to a newer Visual Studio version. Backup files are not needed,
+# because we have git ;-)
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+Backup*/
+UpgradeLog*.XML
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+ServiceFabricBackup/
+*.rptproj.bak
+
+# SQL Server files
+*.mdf
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+*.ndf
+
+# Business Intelligence projects
+*.rdl.data
+*.bim.layout
+*.bim_*.settings
+*.rptproj.rsuser
+*- [Bb]ackup.rdl
+*- [Bb]ackup ([0-9]).rdl
+*- [Bb]ackup ([0-9][0-9]).rdl
+
+# Microsoft Fakes
+FakesAssemblies/
+
+# GhostDoc plugin setting file
+*.GhostDoc.xml
+
+# Node.js Tools for Visual Studio
+.ntvs_analysis.dat
+node_modules/
+
+# Visual Studio 6 build log
+*.plg
+
+# Visual Studio 6 workspace options file
+*.opt
+
+# Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
+*.vbw
+
+# Visual Studio LightSwitch build output
+**/*.HTMLClient/GeneratedArtifacts
+**/*.DesktopClient/GeneratedArtifacts
+**/*.DesktopClient/ModelManifest.xml
+**/*.Server/GeneratedArtifacts
+**/*.Server/ModelManifest.xml
+_Pvt_Extensions
+
+# Paket dependency manager
+.paket/paket.exe
+paket-files/
+
+# FAKE - F# Make
+.fake/
+
+# CodeRush personal settings
+.cr/personal
+
+# Python Tools for Visual Studio (PTVS)
+__pycache__/
+*.pyc
+
+# Cake - Uncomment if you are using it
+# tools/**
+# !tools/packages.config
+
+# Tabs Studio
+*.tss
+
+# Telerik's JustMock configuration file
+*.jmconfig
+
+# BizTalk build output
+*.btp.cs
+*.btm.cs
+*.odx.cs
+*.xsd.cs
+
+# OpenCover UI analysis results
+OpenCover/
+
+# Azure Stream Analytics local run output
+ASALocalRun/
+
+# MSBuild Binary and Structured Log
+*.binlog
+
+# NVidia Nsight GPU debugger configuration file
+*.nvuser
+
+# MFractors (Xamarin productivity tool) working folder
+.mfractor/
+
+# Local History for Visual Studio
+.localhistory/
+
+# BeatPulse healthcheck temp database
+healthchecksdb
+
+# Backup folder for Package Reference Convert tool in Visual Studio 2017
+MigrationBackup/
+
+# Ionide (cross platform F# VS Code tools) working folder
+.ionide/
+
+# Fody - auto-generated XML schema
+FodyWeavers.xsd
+
+# VS Code files for those working on multiple tools
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+*.code-workspace
+
+# Local History for Visual Studio Code
+.history/
+
+# Windows Installer files from build outputs
+*.cab
+*.msi
+*.msix
+*.msm
+*.msp
+
+# JetBrains Rider
+.idea/
+*.sln.iml

Lab4/Lab4.AddSurname/Duomenys.txt

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+Arvydas (g. 1964 m. gruodžio 19 d. Kaune) – Lietuvos krepšininkas,
+olimpinis ir pasaulio čempionas Arvydas, nuo Arvydas
+2011 m. spalio 24 d. Lietuvos krepšinio federacijos prezidentas.
+Profesionalaus žaidėjo karjerą Arvydas pradėjo 1981 m.
+Kauno krepšinio klube "Žalgiris". asasd
+Arvydas tris sezonus iš eilės (1985–1987 m.). Arvydas
+padėjo komandai iškovoti SSRS krepšinio čempionato aukso medalius.
+1982 m. Arvydas as      SSRS rinktinės Arvydas sudėtyje Arvydas
+dalyvavo pasaulio krepšinio čempionate ir laimėjo auksą.
+
+as

Lab4/Lab4.AddSurname/Lab4.AddSurname.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>netcoreapp2.1</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <None Update="Duomenys.txt">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+
+</Project>

Lab4/Lab4.AddSurname/Program.cs

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+
+namespace Lab4.AddSurname
+{
+	public class Program
+	{
+		public static void Main(string[] args)
+		{
+			const string CFd = "Duomenys.txt";
+			const string CFr = "Rezultatai.txt";
+			string punctuation = " .,!?:;()\t'";
+			string name = "Arvydas";
+			string surname = "Sabonis";
+			TaskUtils.ProcessAddSurname(CFd, CFr, punctuation, name, surname);
+			/* TaskUtils.ProcessRemoveWord(CFd, CFr, punctuation, name); */
+		}
+	}
+}

Lab4/Lab4.AddSurname/TaskUtils.cs

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+using System.Text;
+using System.Text.RegularExpressions;
+using System.IO;
+
+namespace Lab4.AddSurname
+{
+	public class TaskUtils
+	{
+		/** Finds name in the line and constructs new line appending given surname.
+		 @param line – string of data
+		 @param punctuation – punctuation marks to separate words
+		 @param name – word to find
+		 @param surname – given word to add
+		 @param newLine – string of result */
+		private static string AddSurname(string line, string punctuation, string name, string surname)
+		{
+			StringBuilder newLine = new StringBuilder();
+			string addLine = " " + line + " ";
+			int init = 1;
+			int ind = addLine.IndexOf(name);
+			while (ind != -1)
+			{
+				if (punctuation.IndexOf(addLine[ind - 1]) != -1 && punctuation.IndexOf(addLine[ind + name.Length]) != -1)
+				{
+					newLine.Append(addLine.Substring(init, ind + name.Length - init));
+					newLine.Append(" ");
+					newLine.Append(surname);
+					init = ind + name.Length;
+				}
+				ind = addLine.IndexOf(name, ind + 1);
+			}
+			newLine.Append(line.Substring(init - 1));
+
+			return newLine.ToString();
+		}
+
+		/** Reads file and adds given surname to the given name.
+		 @param fin – name of data file
+		 @param fout – name of result file
+		 @param punctuation – punctuation marks to separate words
+		 @param name – word to find
+		 @param surname – given word to add */
+		public static void ProcessAddSurname(string fin, string fout, string punctuation, string name, string surname)
+		{
+			string[] lines = File.ReadAllLines(fin, Encoding.UTF8);
+			using (var writer = File.CreateText(fout))
+			{
+				foreach (string line in lines)
+				{
+					string newLine = AddSurname(line, punctuation, name, surname);
+					writer.WriteLine(newLine);
+				}
+			}
+		}
+
+		public static string RemoveWord(string line, string punctuation, string word)
+		{
+            string pattern = string.Format(@"(^|[{0}]+){1}($|[{0}]+)", Regex.Escape(punctuation), Regex.Escape(word));
+            return Regex.Replace(line, pattern, "$1");
+		}
+
+		public static void ProcessRemoveWord(string fin, string fout, string punctuation, string word)
+		{
+			using (StreamWriter writer = File.CreateText(fout))
+			{
+				using (StreamReader reader = new StreamReader(fin))
+				{
+					string line = string.Empty;
+					while ((line = reader.ReadLine()) != null) 
+					{
+						writer.WriteLine(RemoveWord(line, punctuation, word));
+					}
+				}
+			}
+		}
+	}
+}

Lab4/Lab4.ChainedWords/InOut.cs

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+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Text;
+
+namespace Lab4.ChainedWords
+{
+    static class InOut
+    {
+        /// <summary>
+        /// Read a file line-by-line using an enumarable
+        /// </summary>
+        /// <param name="filename">Target file</param>
+        /// <returns>Enumerable</returns>
+        public static IEnumerable<string> ReadByLines(string filename)
+        {
+            string line;
+            using (StreamReader reader = new StreamReader(filename))
+            {
+                while ((line = reader.ReadLine()) != null)
+                {
+                    yield return line;
+                }
+            }
+        }
+    }
+}

Lab4/Lab4.ChainedWords/Knyga.txt

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+Reikia teksto žodžius sulygiuoti, kad kiekvienos eilutės kiekvienas žodis
+prasidėtų fiksuotoje toje pačioje pozicijoje. Galima įterpti tik minimalų
+būtiną tarpų skaičių. Reikia šalinti iš pradinio teksto kelis iš eilės einančius
+vienodus skyriklius, paliekant tik vieną jų atstovą. Įterpimo taisyklę taikome,

Lab4/Lab4.ChainedWords/Lab4.ChainedWords.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>netcoreapp2.1</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <None Update="Knyga.txt">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+
+</Project>

Lab4/Lab4.ChainedWords/Program.cs

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+using System;
+
+namespace Lab4.ChainedWords
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            string input = "Knyga.txt";
+            string output1 = "Rodikliai.txt";
+            string output2 = "ManoKnyga.txt";
+            string punctuation = " ,.;!?";
+            TaskUtils.ProcessChains(input, output1, punctuation);
+            //TaskUtils.ProcessAligned(input, output2, punctuation);
+            TaskUtils.ProccessVericallyAligned(input, output2, punctuation);
+        }
+    }
+}
+

Lab4/Lab4.ChainedWords/TaskUtils.cs

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+using System;
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+
+namespace Lab4.ChainedWords
+{
+    static class TaskUtils
+    {
+        /// <summary>
+        /// Return anything that matches a word in given text, depending on punctuation
+        /// </summary>
+        /// <param name="text">Target text</param>
+        /// <param name="punctuation">Target punctuation</param>
+        /// <returns>Word matches</returns>
+        private static MatchCollection MatchByWords(string text, string punctuation)
+        {
+            string pattern = string.Format(@"[^{0}\n]+", Regex.Escape(punctuation));
+            return Regex.Matches(text, pattern, RegexOptions.IgnoreCase);
+        }
+
+        /// <summary>
+        /// Return anything that matches a positive integer in text
+        /// </summary>
+        /// <param name="text">Target text</param>
+        /// <returns>Integer matches</returns>
+        private static MatchCollection MatchByIntegers(string text)
+        {
+            return Regex.Matches(text, @"\d+");
+        }
+
+        /// <summary>
+        /// Find all chains of words in given text. A chain is a sequence of words where every words
+        /// last letter matches the next words first letter. And split the text into words using punctuation
+        /// </summary>
+        /// <param name="text">Target text</param>
+        /// <param name="punctuation">Target punctuation</param>
+        /// <returns>A list of chains with line number where it was found</returns>
+        public static List<Tuple<int, string>> FindChains(string text, string punctuation)
+        {
+            List<Tuple<int, string>> chains = new List<Tuple<int, string>>();
+
+            bool startedChain = false;
+            int chainStart = 0;
+
+            MatchCollection matches = MatchByWords(text, punctuation);
+            for (int i = 1; i < matches.Count; i++)
+            {
+                Match prevMatch = matches[i-1];
+                Match match = matches[i];
+                bool matchesCriteria = prevMatch.Value.ToLowerInvariant().Last() == match.Value.ToLowerInvariant().First();
+
+                if (matchesCriteria && !startedChain)
+                {
+                    startedChain = true;
+                    chainStart = prevMatch.Index;
+                }
+                else if (!matchesCriteria && startedChain)
+                {
+                    startedChain = false;
+                    int line = text.Substring(0, chainStart).Count(c => c == '\n')+1;
+                    string chain = text.Substring(chainStart, match.Index-chainStart).TrimEnd('\n');
+                    chains.Add(new Tuple<int, string>(line, chain));
+                }
+            }
+
+            // Ensure that last chain gets added to list
+            if (startedChain)
+            {
+                int line = text.Substring(0, chainStart).Count(c => c == '\n')+1;
+                string chain = text.Substring(chainStart).TrimEnd('\n');
+                chains.Add(new Tuple<int, string>(line, chain));
+            }
+
+            return chains;
+        }
+
+        /// <summary>
+        /// Find all positive integers in given text
+        /// </summary>
+        /// <param name="text">Target text</param>
+        /// <returns>List of positive integers</returns>
+        public static List<int> FindIntegers(string text)
+        {
+            List<int> integers = new List<int>();
+
+            MatchCollection matches = MatchByIntegers(text);
+            foreach (Match match in matches)
+            {
+                integers.Add(int.Parse(match.Value));
+            }
+
+            return integers;
+        }
+
+        /// <summary>
+        /// Finds the longest chain in the given text, while using given punctuation to determine words.
+        /// </summary>
+        /// <param name="text">Target text</param>
+        /// <param name="punctuation">Target punctuation</param>
+        /// <returns></returns>
+        public static Tuple<int, string> FindLongestChain(string text, string punctuation)
+        {
+            List<Tuple<int, string>> chains = FindChains(text, punctuation);
+
+            if (chains.Count == 0)
+            {
+                return null;
+            }
+
+            Tuple<int, string> longestChain = chains[0];
+            foreach (var pair in chains)
+            {
+                if (pair.Item2.Length > longestChain.Item2.Length)
+                {
+                    longestChain = pair;
+                }
+            }
+
+            return longestChain;
+        }
+
+        /// <summary>
+        /// Ouput to file:
+        /// * longest chain and where it was found
+        /// * sum of all positive integers
+        /// </summary>
+        /// <param name="inputFile">Input file</param>
+        /// <param name="outputFile">Output file</param>
+        /// <param name="punctuation">Target punctuation</param>
+        public static void ProcessChains(string inputFile, string outputFile, string punctuation)
+        {
+            string text = File.ReadAllText(inputFile, Encoding.UTF8);
+            Tuple<int, string> longestChain = FindLongestChain(text, punctuation);
+            List<int> integers = FindIntegers(text);
+
+            using (StreamWriter writer = new StreamWriter(outputFile))
+            {
+                if (longestChain != null)
+                {
+                    writer.WriteLine("Ilgiausia žodžių grandinė {0} eilutėje: {1}", longestChain.Item1, longestChain.Item2);
+                }
+                else
+                {
+                    writer.WriteLine("Nėra žodžių grandinių.");
+                }
+
+                writer.WriteLine("Yra {0} žodžiai sudaryti iš skaitmenų. Jų suma: {1}", integers.Count, integers.Sum());
+            }
+        }
+
+        private static string AlignWordsByColumns(List<List<string>> words, string punctuation)
+        {
+            StringBuilder aligned = new StringBuilder();
+            Dictionary<int, int> columns = new Dictionary<int, int>();
+
+            foreach (List<string> row in words)
+            {
+                int column = 0;
+                foreach (string word in row)
+                {
+                    if (!columns.ContainsKey(column))
+                    {
+                        columns.Add(column, 0);
+                    }
+                    columns[column] = Math.Max(columns[column], word.Length);
+                    column++;
+                }
+            }
+
+            foreach (List<string> row in words)
+            {
+                int column = 0;
+                for (int i = 0; i < row.Count; i++)
+                {
+                    string word = row[i];
+                    aligned.Append(word);
+                    if (i < row.Count - 1)
+                    {
+                        aligned.Append(new string(' ', columns[column] - word.Length));
+                    }
+                    column++;
+                }
+                aligned.Append("\n");
+            }
+
+            return aligned.ToString();
+        }
+
+        /// <summary>
+        /// Align every word in a line by columns
+        /// </summary>
+        /// <param name="inputFile">Input file</param>
+        /// <param name="outputFile">Output file</param>
+        /// <param name="punctuation">Target punctuation</param>
+        public static void ProcessAligned(string inputFile, string outputFile, string punctuation)
+        {
+            string pattern = string.Format(@"[^{0}]+[{0}]*", Regex.Escape(punctuation));
+            string text = File.ReadAllText(inputFile, Encoding.UTF8);
+            List<List<string>> words = new List<List<string>>();
+
+            foreach (string line in InOut.ReadByLines(inputFile))
+            {
+                List<string> row = new List<string>();
+                words.Add(row);
+                foreach (Match match in Regex.Matches(line, pattern))
+                {
+                    row.Add(match.Value.TrimEnd('\n'));
+                }
+            }
+
+            File.WriteAllText(outputFile, AlignWordsByColumns(words, punctuation));
+        }
+
+        /// <summary>
+        /// Align every line by columns and print words vertically
+        /// </summary>
+        /// <param name="inputFile">Input file</param>
+        /// <param name="outputFile">Output file</param>
+        /// <param name="punctuation">Punctuation</param>
+        public static void ProccessVericallyAligned(string inputFile, string outputFile, string punctuation)
+        {
+            string pattern = string.Format(@"[^{0}]+[{0}]*", Regex.Escape(punctuation));
+            string text = File.ReadAllText(inputFile, Encoding.UTF8);
+            List<List<string>> words = new List<List<string>>();
+
+            foreach (string line in InOut.ReadByLines(inputFile))
+            {
+                int column = 0;
+                int row = 0;
+                foreach (Match match in Regex.Matches(line, pattern))
+                {
+                    if (words.Count <= row)
+                    {
+                        words.Add(new List<string>());
+                    }
+                    words[row].Add(match.Value.TrimEnd('\n'));
+                    row++;
+                }
+                column++;
+            }
+
+            File.WriteAllText(outputFile, AlignWordsByColumns(words, punctuation));
+        }
+    }
+}
+

Lab4/Lab4.ChainedWords/tests/1/Knyga.txt

@@ -0,0 +1,8 @@
+Reikia teksto žodžius sulygiuoti, kad 33
+eilutės 1 žodis
+prasidėtų fiksuotoje toje pačioje pozicijoje.
+Galima įterpti tik minimalų 22
+būtiną tarpų 111. Reikia šalinti iš
+pradinio teksto kelis iš eilės einančius
+vienodus skyriklius, paliekant tik vieną
+jų atstovą. Įterpimo taisyklę 44,

Lab4/Lab4.ChainedWords/tests/2/Knyga.txt

@@ -0,0 +1,8 @@
+Reikia teksto žodžius , kad kiekvienos
+eilutės kiekvienas žodis 100
+prasidėtų fiksuotoje toje pačioje pozicijoje.
+Galima įterpti 12 minimalų
+ABC CDEEEEF FG. Reikia šalinti iš
+pradinio teksto kelis iš eilės einančius
+vienodus 420, paliekant tik vieną
+jų atstovą. FOO OFO OOOOOF

Lab4/Lab4.FirstEqualLast/Duomenys.txt

@@ -0,0 +1,9 @@
+V. M. Putinas
+Margi sakalai
+Lydėdami gęstančią žarą vėlai
+Pakilo į dangų;;, margi sakalai.
+Paniekinę žemės vylingus sapnus,
+Padangėje ištiesė,,; savo sparnus.
+Ir tarė margieji: negrįšim į žemę,
+Kol josios kalnai ir pakalnės aptemę.
+...

Lab4/Lab4.FirstEqualLast/Lab4.FirstEqualLast.csproj

@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

Lab4/Lab4.FirstEqualLast/Program.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+
+namespace Lab4.FirstEqualLast
+{
+	public class Program
+	{
+		public static void Main(string[] args)
+		{
+			const string CFd = "Duomenys.txt";
+			string punctuation = "[\\s,.;:!?()\\-]+";
+			Console.WriteLine("Sutampančių žodžių {0, 3:d}", TaskUtils.Process(CFd, punctuation));
+		}
+	}
+}

Lab4/Lab4.FirstEqualLast/TaskUtils.cs

@@ -0,0 +1,67 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Text.RegularExpressions;
+
+namespace Lab4.FirstEqualLast
+{
+	public class TaskUtils
+	{
+		/** Reads file and finds the number of words having same the first and
+			the last letters.
+			@param fin – name of data file 
+			@param punctuation – punctuation marks to separate words */
+		public static int Process(string fin, string punctuation)
+		{
+			string[] lines = File.ReadAllLines(fin, Encoding.UTF8);
+			int equal = 0;
+			foreach (string line in lines)
+				if (line.Length > 0)
+					equal += FirstEqualLast(line, punctuation);
+				return equal;
+			}
+
+		/** Splits line into words and counts the words having same the first
+			and the last letters.
+			@param line – string of data
+			@param punctuation – punctuation marks to separate words */
+		private static int FirstEqualLast (string line, string punctuation)
+		{
+			string[] parts = Regex.Split(line.ToLower(), punctuation);
+			int equal = 0;
+			foreach (string word in parts)
+				if(word.Length > 0) // empty words at the end of line
+					if (word[0] == word[word.Length - 1])
+						equal++;
+			return equal;
+		}
+
+		/** Reads file and finds the number of words having same the first and
+			the last letters.
+			@param fin – name of data file
+			@param punctuation – punctuation marks to separate words */
+		public static int Process(string fin, char[] punctuation)
+		{
+			string[] lines = File.ReadAllLines(fin, Encoding.UTF8);
+			int equal = 0;
+			foreach (string line in lines)
+				if (line.Length > 0)
+					equal += FirstEqualLast(line, punctuation);
+			return equal;
+		}
+
+		/** Splits line into words and counts the words having same the first and the
+			last letters.
+			@param line – string of data
+			@param punctuation – punctuation marks to separate words */
+		private static int FirstEqualLast (string line, char[] punctuation)
+		{
+			string[] parts = line.ToLower().Split(punctuation, StringSplitOptions.RemoveEmptyEntries);
+			int equal = 0;
+			foreach (string word in parts)
+				if (word[0] == word[word.Length - 1])
+					equal++;
+			return equal;
+		}
+	}
+}

Lab4/Lab4.K2/Lab4.K2.csproj

@@ -0,0 +1,8 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>netcoreapp2.1</TargetFramework>
+  </PropertyGroup>
+
+</Project>

Lab4/Lab4.K2/Program.cs

@@ -0,0 +1,169 @@
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Collections.Generic;
+using System.IO;
+
+namespace Lab4.K2
+{
+    static class TaskUtils
+    {
+        public static bool NoDigits(string line)
+        {
+            return !Regex.IsMatch(line, @"\d");
+        }
+
+        public static int NumberDifferentVowelsInLine(string line)
+        {
+            string vowels = "aeiyouąęėįųū";
+            int count = 0;
+
+            line = line.ToLower();
+            foreach (char vowel in vowels)
+            {
+                count += line.Contains(vowel) ? 1 : 0;
+            }
+
+            return count;
+        }
+
+        // Note: returns words including punctuation after them
+        public static MatchCollection MatchByWords(string line, string punctuation)
+        {
+            string pattern = string.Format(@"([^{0}]+)[{0}]*", Regex.Escape(punctuation));
+            return Regex.Matches(line, pattern);
+        }
+
+        public static string FindWord1Line(string line, string punctuation)
+        {
+            Match longestWord = null;
+            foreach (Match match in MatchByWords(line, punctuation))
+            {
+                int vowelCount = NumberDifferentVowelsInLine(match.Value);
+                if (vowelCount == 3 && (longestWord == null || longestWord.Groups[1].Length < match.Groups[1].Length))
+                {
+                   longestWord = match;
+                }
+            }
+
+            if (longestWord == null)
+            {
+                return "";
+            }
+            else
+            {
+                return longestWord.Value;
+            }
+        }
+
+        public static string EditLine(string line, string punctuation, string word)
+        {
+            // 1. Find given word in line
+            MatchCollection words = MatchByWords(line, punctuation);
+            int wordPosition = -1;
+
+            for (int i = 0; i < words.Count; i++)
+            {
+                if (words[i].Value == word)
+                {
+                    wordPosition = i;
+                    break;
+                }
+            }
+
+            if (wordPosition == -1) return line;
+
+            // 2. Move found word to front
+            StringBuilder builder = new StringBuilder();
+            builder.Append(words[wordPosition]);
+            for (int i = 0; i < words.Count; i++)
+            {
+                if (i != wordPosition)
+                {
+                    builder.Append(words[i]);
+                }
+            }
+
+            // 3. Profit
+            return builder.ToString();
+        }
+
+        public static Match MatchLastWord(string line, string punctuation)
+        {
+            string pattern = string.Format(@"[^{0}]+[{0}]*$", Regex.Escape(punctuation));
+            return Regex.Match(line, pattern);
+        }
+
+        public static string FindWord2Line(string line, string punctuation)
+        {
+            Match lastWord = MatchLastWord(line, punctuation);
+            if (NoDigits(lastWord.Value))
+            {
+                return lastWord.Value;
+            }
+            else
+            {
+                return "";
+            }
+        }
+
+        public static IEnumerable<string> ReadByLines(string filename)
+        {
+            string line;
+            using (StreamReader reader = new StreamReader(filename, Encoding.UTF8))
+            {
+                while ((line = reader.ReadLine()) != null)
+                {
+                    yield return line;
+                }
+            }
+        }
+
+        public static void PerformTask(string fd, string fr)
+        {
+            List<string> wordsWithoutDigits = new List<string>();
+            string punctuation = null;
+            using (StreamWriter writer = File.CreateText(fr))
+            {
+                foreach (string line in ReadByLines(fd))
+                {
+                    if (punctuation == null)
+                    {
+                        punctuation = line;
+                        continue;
+                    }
+
+                    string longestWord = TaskUtils.FindWord1Line(line, punctuation);
+                    if (longestWord != "")
+                    {
+                        writer.WriteLine(TaskUtils.EditLine(line, punctuation, longestWord));
+                    }
+                    else
+                    {
+                        writer.WriteLine(line);
+                    }
+
+                    string wordWithoutDigits = TaskUtils.FindWord2Line(line, punctuation);
+                    if (wordWithoutDigits != "")
+                    {
+                        wordsWithoutDigits.Add(wordWithoutDigits);
+                    }
+                }
+
+                char[] punctuationChars = punctuation.ToCharArray();
+                foreach (string word in wordsWithoutDigits)
+                {
+                    writer.WriteLine(word.Trim(punctuationChars));
+                }
+            }
+        }
+    }
+
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            TaskUtils.PerformTask("Tekstas.txt", "RedTekstas.txt");
+        }
+    }
+}
+

Lab4/Lab4.K2/Tekstas.txt

@@ -0,0 +1,5 @@
+ .!?;:@
+bar fooo,@ !ba1
+bar bAaar baar bAoUr!!
+bar foėo@ 1ba
+bar? baer boar f!!

Lab4/Lab4.LetterFrequency/Duomenys.txt

@@ -0,0 +1,6 @@
+Draugas draugui sako:
+- Ką pasakytum, jei sutiktum moterį, kuri visada būtų švelni ir maloni,
+ viską tau atleistų, tave dievintų.
+- Tokių nebūna.
+- Būna. Reiktų pasakyti:
+- Labas, mama!

Lab4/Lab4.LetterFrequency/InOut.cs

@@ -0,0 +1,40 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Text;
+
+namespace Lab4.LetterFrequency
+{
+    static class InOut
+    {
+        /** Prints repetition of letters using two columns into a given file.
+        @param fout – name of the file for the output
+        @param letters – object having letters and their repetitions */
+        public static void PrintRepetitions(string fout, LettersFrequency letters)
+        {
+            using (var writer = File.CreateText(fout))
+            {
+                foreach (var pair in letters.GetOrderedFrequencies())
+                {
+                    writer.WriteLine("{0, 3:c} {1, 4:d}", pair.Item1, pair.Item2);
+                }
+            }
+        }
+
+        /** Inputs from the given data file and counts repetition of letters.
+         @param fin – name of data file
+         @param letters – object having letters and their repetitions*/
+        public static void Repetitions(string fin, LettersFrequency letters)
+        {
+            using (StreamReader reader = new StreamReader(fin))
+            {
+                string line;
+                while ((line = reader.ReadLine()) != null)
+                {
+                    letters.line = line;
+                    letters.CountLetters();
+                }
+            }
+        }
+    }
+}

Lab4/Lab4.LetterFrequency/Lab4.LetterFrequency.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>netcoreapp2.1</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <None Update="Duomenys.txt">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+
+</Project>

Lab4/Lab4.LetterFrequency/LettersFrequency.cs

@@ -0,0 +1,80 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Text;
+
+namespace Lab4.LetterFrequency
+{
+    /** To count letters frequency */
+    class LettersFrequency
+    {
+        private const int CMax = 256;
+        private Dictionary<char, int> Frequency; // Frequency of letters
+        public string line { get; set; }
+
+        public LettersFrequency()
+        {
+            line = "";
+            Frequency = new Dictionary<char, int>();
+            for (char c = 'a'; c <= 'z'; c++)
+            {
+                Frequency.Add(c, 0);
+            }
+            for (char c = 'A'; c <= 'Z'; c++)
+            {
+                Frequency.Add(c, 0);
+            }
+        }
+
+        public int Get(char character)
+        {
+            return Frequency[character];
+        }
+        
+        /** Counts repetition of letters. */
+        public void CountLetters()
+        {
+            for (int i = 0; i < line.Length; i++)
+            {
+                if (Char.IsLetter(line[i]))
+                {
+                    if (!Frequency.ContainsKey(line[i]))
+                    {
+                        Frequency.Add(line[i], 0);
+                    }
+                    Frequency[line[i]]++;
+                }
+            }
+        }
+
+        public char GetMostFrequent()
+        {
+            char mostFrequent = (char)(0);
+            foreach (var pair in Frequency)
+            {
+                if (mostFrequent == 0 || pair.Value > Frequency[mostFrequent])
+                {
+                    mostFrequent = pair.Key;
+                }
+            }
+            return mostFrequent;
+        }
+
+        public List<Tuple<char, int>> GetOrderedFrequencies()
+        {
+            List<Tuple<char, int>> frequencies = new List<Tuple<char, int>>();
+            foreach (var pair in Frequency)
+            {
+                frequencies.Add(new Tuple<char, int>(pair.Key, pair.Value));
+            }
+
+            frequencies.Sort(delegate (Tuple<char, int> x, Tuple<char, int> y)
+            {
+                return -x.Item2.CompareTo(y.Item2);
+            });
+
+            return frequencies;
+        }
+    }
+    
+}

Lab4/Lab4.LetterFrequency/Program.cs

@@ -0,0 +1,21 @@
+using System;
+
+namespace Lab4.LetterFrequency
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            const string CFd = "Duomenys.txt";
+            const string CFr = "Rezultatai.txt";
+            LettersFrequency letters = new LettersFrequency();
+            InOut.Repetitions(CFd, letters);
+            char mostFrequent = letters.GetMostFrequent();
+            if (mostFrequent != 0)
+            {
+                Console.WriteLine("Dažniausiai pasikartojanti raidė: {0}", mostFrequent);
+            }
+            InOut.PrintRepetitions(CFr, letters);
+        }
+    }
+}

Lab4/Lab4.RemoveComments/Duomenys.txt

@@ -0,0 +1,19 @@
+void DuomenysInternet(Grybai & grybai)
+{
+ ifstream fd(u2);
+// string pav, tip;
+// GrybasInfo s1;
+ int ns = 0; /*
+ bool yra = true;
+ */
+ while(!fd.eof() && yra) { // kol yra duomenų ir jie telpa į masyvą
+ fd >> pav >> tip;
+ s1.Dėti (pav, tip);
+ if(!fd.eof() && (ns - 1 < Grybai::CMax ) )
+	 grybai[ns++] = s1; // įrašo naują elementą
+	 else
+	 yra = false;
+ }
+ fd.close();
+ grybai.Dėti(ns);
+}

Lab4/Lab4.RemoveComments/InOut.cs

@@ -0,0 +1,39 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Text;
+
+namespace Lab4.RemoveComments
+{
+    class InOut
+    {
+        public static void Process(string fin, string fout, string finfo)
+        {
+            string[] lines = File.ReadAllLines(fin, Encoding.UTF8);
+            string[] cleanedLines = TaskUtils.RemoveComments(lines);
+
+            File.WriteAllLines(fout, cleanedLines);
+
+            using (var writer = File.CreateText(finfo))
+            {
+                int j = 0; // Used for cleaned lines
+                // Check line by line which differ
+                for (int i = 0; i < lines.Length && j < cleanedLines.Length; i++)
+                {
+                    if (lines[i] != cleanedLines[j])
+                    {
+                        writer.WriteLine(lines[i]);
+												if (lines[i].StartsWith(cleanedLines[j]))
+												{
+														j++;
+												}
+                    }
+                    else
+                    {
+                        j++;
+                    }
+                }
+            }
+        }
+    }
+}

Lab4/Lab4.RemoveComments/Lab4.RemoveComments.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>netcoreapp2.1</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <None Update="Duomenys.txt">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+
+</Project>

Lab4/Lab4.RemoveComments/Program.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Text.RegularExpressions;
+
+namespace Lab4.RemoveComments
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            const string CFd = "Duomenys.txt";
+            const string CFr = "Rezultatai.txt";
+            const string CFa = "Analize.txt";
+            InOut.Process(CFd, CFr, CFa);
+        }
+    }
+}

Lab4/Lab4.RemoveComments/TaskUtils.cs

@@ -0,0 +1,61 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Text.RegularExpressions;
+
+namespace Lab4.RemoveComments
+{
+    class TaskUtils
+    {
+        /** Removes comments and returns an indication about performed activity.
+            @param line – line having possible comments
+            @param newLine – line without comments */
+        public static string[] RemoveComments(string[] lines)
+        {
+            List<string> cleanedLines = new List<string>();
+
+						bool multiLineComment = false;
+
+            foreach (string line in lines)
+            {
+								Match case1 = Regex.Match(line, @"^(.*)/\*.*$");
+								Match case2 = Regex.Match(line, @"^.*\*/(.*)$");
+                Match case3 = Regex.Match(line, @"^(.*)//.*$");
+
+								if (case1.Success)
+								{
+									if (!multiLineComment) {
+										multiLineComment = true;
+										if (case1.Groups[1].Value.Length > 0)
+										{
+												cleanedLines.Add(case1.Groups[1].Value);
+										}
+									}
+								}
+								else if (case2.Success)
+								{
+									if (multiLineComment) {
+										multiLineComment = false;
+										if (case2.Groups[1].Value.Length > 0)
+										{
+												cleanedLines.Add(case2.Groups[1].Value);
+										}
+									}
+								}
+								else if (case3.Success)
+                {
+                    if (case3.Groups[1].Value.Length > 0)
+                    {
+                        cleanedLines.Add(case3.Groups[1].Value);
+                    }
+                }
+                else
+                {
+                    cleanedLines.Add(line);
+                }
+            }
+            
+            return cleanedLines.ToArray();
+        }
+    }
+}

Lab4/Lab4.RemoveLines/Duomenys.txt

@@ -0,0 +1,10 @@
+Aš atverčiau knygą kur pakliuvo.
+Raidžių formos man buvo niekur nematytos.
+Puslapiai apšiurę, raidės neryškios, tekstas ėjo dviem skiltimis.
+Puslapiai apšiurę, raidės neryškios, tekstas ėjo dviem skiltimis.
+Šriftas buvo tankus ir padalytas į pastraipas.
+Ir mažas paveikslėlis, toks, koks pasitaiko žodynuose:
+plunksna nupieštas inkaras, bet lyg negrabia vaiko ranka.
+Puslapiai apšiurę, raidės neryškios, tekstas ėjo dviem skiltimis.
+
+	Jorge Luis Borges. Smėlio knyga. Vilnius, 2006.

Lab4/Lab4.RemoveLines/InOut.cs

@@ -0,0 +1,95 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Text;
+
+namespace Lab4.RemoveLines
+{
+    class InOut
+    {
+        public static int LongestLine(string fin)
+        {
+            int No = -1;
+            using (StreamReader reader = new StreamReader(fin, Encoding.UTF8))
+            {
+                string line;
+                int length = 0;
+                int lineNo = 0;
+                while ((line = reader.ReadLine()) != null)
+                {
+                    if (line.Length > length)
+                    {
+                        length = line.Length;
+                        No = lineNo;
+                    }
+                    lineNo++;
+                }
+            }
+            return No;
+        }

        public static List<int> LongestLines(string fin)
+        {
+            List<int> lines = new List<int>();
+            int longestLength = 0;
+
+            using (StreamReader reader = new StreamReader(fin, Encoding.UTF8))
+            {
+                string line;
+                int lineNo = 0;
+                while ((line = reader.ReadLine()) != null)
+                {
+                    if (line.Length > longestLength)
+                    {
+                        longestLength = line.Length;
+                        lines.Clear();
+                        lines.Add(lineNo);
+                    }
+                    else if (line.Length == longestLength)
+                    {
+                        lines.Add(lineNo);
+                    }
+                    lineNo++;
+                }
+            }
+
+            return lines;
+        }

        public static void RemoveLine(string fin, string fout, int No)
+        {
+            using (StreamReader reader = new StreamReader(fin, Encoding.UTF8))
+            {
+                string line;
+                int lineNo = 0;
+                using (var writer = File.CreateText(fout))
+                {
+                    while ((line = reader.ReadLine()) != null)
+                    {
+                        if (No != lineNo)
+                        {
+                            writer.WriteLine(line);
+                        }
+                        lineNo++;
+                    }
+                }
+            }
+        }
+
+        public static void RemoveLines(string fin, string fout, List<int> lines)
+        {
+            using (StreamReader reader = new StreamReader(fin, Encoding.UTF8))
+            {
+                string line;
+                int lineNo = 0;
+                using (var writer = File.CreateText(fout))
+                {
+                    while ((line = reader.ReadLine()) != null)
+                    {
+                        if (!lines.Contains(lineNo))
+                        {
+                            writer.WriteLine(line);
+                        }
+                        lineNo++;
+                    }
+                }
+            }
+        }
+    }
+}

Lab4/Lab4.RemoveLines/Lab4.RemoveLines.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>netcoreapp2.1</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <None Update="Duomenys.txt">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+
+</Project>

Lab4/Lab4.RemoveLines/Program.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+
+namespace Lab4.RemoveLines
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            const string CFd = "Duomenys.txt";
+            const string CFr = "Rezultatai.txt";
+            List<int> lines = InOut.LongestLines(CFd);
+            InOut.RemoveLines(CFd, CFr, lines);
+            foreach (int line in lines)
+            {
+                Console.WriteLine("Ilgiausios eilutės nr. {0, 4:d}", line + 1);
+            }
+        }
+    }
+}

Lab4/Lab4.RemoveVowels/Duomenys.txt

@@ -0,0 +1,15 @@
+Kūčių rytą
+
+	Anksti Kūčių rytą šeimininkė budina savo vyrą:
+	- Eik greičiau, saulei netekėjus, kur dalgės kabo, ištverk dalges. Dalges
+padėk po stogu, o dalgiakočius sudėk svirnan.
+	Šeimininkė ieško kubilo lanko, kad būt visai apskritas, nepertrūkęs niekur.
+Tą lanką neša vištų tvartan, vidury tvarto paguldo. O tada šeimininkė skuba
+tvartant prie kodžio, kur būna žirniai supilti. Šeimininkė tuos žirnius semia
+negailėdama didžiulį gorčių, kad visos vištos prilestų lig soties. Šeimininkė
+pila tuos žirnius tan kubilo lankan, kad nei vienas žirnis nebūt už kubilo
+lanko - kad vištos visos dėtų kiaušinius vienan daiktan, nemėtytų kiaušinių.
+Berdama žirnius tan lankan, šeimininkė garsiai sako vištom:
+	- Žiūrėkite, kad nei vieno kiaušinio, nei vieno niekur nepamestut, visus
+vienon vieton dėkite!
+Na ir visos vištos šeimininkės įsakymą vykdo.

Lab4/Lab4.RemoveVowels/Lab4.RemoveVowels.csproj

@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

Lab4/Lab4.RemoveVowels/Program.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+
+namespace Lab4.RemoveVowels
+{
+	class Program
+	{
+		static void Main(string[] args)
+		{
+			const string CFd = "Duomenys.txt";
+			const string CFr = "Rezultatai.txt";
+			const string CFa = "Analize.txt";
+			const string vowels = "AEIYOUaeiyouĄąĘęĖėĮįŲųŪū";
+			char[] punctuation = {' ', '.', ',', '!', '?', ':', ';', '(', ')', '\t'};
+			TaskUtils.Process(CFd, CFr, CFa, punctuation, vowels);
+		}
+	}
+}

Lab4/Lab4.RemoveVowels/TaskUtils.cs

@@ -0,0 +1,74 @@
+using System;
+using System.Text;
+using System.IO;
+
+namespace Lab4.RemoveVowels
+{
+	class TaskUtils
+	{
+		/** Finds the longest word in the line.
+		 @param line – string of data
+		 @param punctuation – punctuation marks to separate words */
+		private static string LongestWord(string line, char[] punctuation)
+			{
+			string[] parts = line.Split(punctuation, StringSplitOptions.RemoveEmptyEntries);
+			string longestWord="";
+			foreach (string word in parts)
+				if (word.Length > longestWord.Length)
+					longestWord = word;
+			return longestWord;
+		}
+
+		/** Removes vowels from the given word.
+		 @param line – word with possible vowels
+		 @param vowels – vowels of the alphabet */
+		private static StringBuilder RemoveVowels(string line, string vowels)
+		{
+			StringBuilder newLine = new StringBuilder();
+			for (int i = 0; i < line.Length; i++)
+				if (vowels.IndexOf(line[i]) == -1)
+					newLine.Append(line[i]);
+			return newLine;
+		}
+
+		/** Reads file, removes vowels from the longest word, creates files of
+		results and of information.
+		 @param fin – name of data file
+		 @param fout – name of result file
+		 @param finfo – name of informative file
+		 @param punctuation – punctuation marks to separate words
+		 @param vowels – vowels of the alphabet */
+		public static void Process(string fin, string fout, string finfo, char[] punctuation, string vowels)
+		{
+			string[] lines = File.ReadAllLines(fin, Encoding.UTF8);
+			string dashes = new string('-', 38);
+			using (var writerF = File.CreateText(fout))
+			{
+				using (var writerI = File.CreateText(finfo))
+				{
+					writerI.WriteLine(dashes);
+					writerI.WriteLine("| Ilgiausias žodis | Pradžia | Ilgis |");
+					writerI.WriteLine(dashes);
+					foreach (string line in lines)
+					{
+						if (line.Length > 0)
+						{
+							string longestWord = LongestWord(line, punctuation);
+							string wordNoVowels = RemoveVowels(longestWord, vowels).ToString();
+							writerI.WriteLine("| {0,-16} | {1, 7:d} | {2, 5:d} |",
+							longestWord, line.IndexOf(longestWord), longestWord.Length);
+							string newLine = line.Replace(longestWord, wordNoVowels);
+							// The shortest word cannot be replaced this way.
+							// It can be a part of the other word; solution is 4.5 subsection.
+							writerF.WriteLine(newLine);
+						}
+						else
+							 writerF.WriteLine(line);
+					}
+					writerI.WriteLine(dashes);
+			 }
+		 }
+		}
+	}
+}
+

Lab4/Lab4.sln

@@ -0,0 +1,67 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 15
+VisualStudioVersion = 15.0.28307.1525
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Lab4.RemoveLines", "Lab4.RemoveLines\Lab4.RemoveLines.csproj", "{5309D21D-2A14-4332-90EC-504AD89CE397}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Lab4.RemoveComments", "Lab4.RemoveComments\Lab4.RemoveComments.csproj", "{4D9B08C9-5735-4C95-8D2A-BDFC888B1E68}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Lab4.LetterFrequency", "Lab4.LetterFrequency\Lab4.LetterFrequency.csproj", "{F1797B5C-1541-4821-9485-7C3520C5DD8D}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Lab4.FirstEqualLast", "Lab4.FirstEqualLast\Lab4.FirstEqualLast.csproj", "{83CB5DEC-25E5-42FF-8601-9BF8DA73E397}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Lab4.AddSurname", "Lab4.AddSurname\Lab4.AddSurname.csproj", "{F7EFA186-AD5D-4E5D-B405-9ACBAEDB7BF3}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Lab4.RemoveVowels", "Lab4.RemoveVowels\Lab4.RemoveVowels.csproj", "{5AD87F42-DD6D-4ADF-B1D5-66553BAA4BCC}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Lab4.ChainedWords", "Lab4.ChainedWords\Lab4.ChainedWords.csproj", "{DA96CD19-65AA-4665-831F-8D9B21A6E369}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Lab4.K2", "Lab4.K2\Lab4.K2.csproj", "{BE0E7198-95F7-4EFA-BFE1-CA5BBE7798D2}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{5309D21D-2A14-4332-90EC-504AD89CE397}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{5309D21D-2A14-4332-90EC-504AD89CE397}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{5309D21D-2A14-4332-90EC-504AD89CE397}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{5309D21D-2A14-4332-90EC-504AD89CE397}.Release|Any CPU.Build.0 = Release|Any CPU
+		{4D9B08C9-5735-4C95-8D2A-BDFC888B1E68}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{4D9B08C9-5735-4C95-8D2A-BDFC888B1E68}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{4D9B08C9-5735-4C95-8D2A-BDFC888B1E68}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{4D9B08C9-5735-4C95-8D2A-BDFC888B1E68}.Release|Any CPU.Build.0 = Release|Any CPU
+		{F1797B5C-1541-4821-9485-7C3520C5DD8D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{F1797B5C-1541-4821-9485-7C3520C5DD8D}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{F1797B5C-1541-4821-9485-7C3520C5DD8D}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{F1797B5C-1541-4821-9485-7C3520C5DD8D}.Release|Any CPU.Build.0 = Release|Any CPU
+		{83CB5DEC-25E5-42FF-8601-9BF8DA73E397}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{83CB5DEC-25E5-42FF-8601-9BF8DA73E397}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{83CB5DEC-25E5-42FF-8601-9BF8DA73E397}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{83CB5DEC-25E5-42FF-8601-9BF8DA73E397}.Release|Any CPU.Build.0 = Release|Any CPU
+		{F7EFA186-AD5D-4E5D-B405-9ACBAEDB7BF3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{F7EFA186-AD5D-4E5D-B405-9ACBAEDB7BF3}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{F7EFA186-AD5D-4E5D-B405-9ACBAEDB7BF3}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{F7EFA186-AD5D-4E5D-B405-9ACBAEDB7BF3}.Release|Any CPU.Build.0 = Release|Any CPU
+		{5AD87F42-DD6D-4ADF-B1D5-66553BAA4BCC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{5AD87F42-DD6D-4ADF-B1D5-66553BAA4BCC}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{5AD87F42-DD6D-4ADF-B1D5-66553BAA4BCC}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{5AD87F42-DD6D-4ADF-B1D5-66553BAA4BCC}.Release|Any CPU.Build.0 = Release|Any CPU
+		{DA96CD19-65AA-4665-831F-8D9B21A6E369}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{DA96CD19-65AA-4665-831F-8D9B21A6E369}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{DA96CD19-65AA-4665-831F-8D9B21A6E369}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{DA96CD19-65AA-4665-831F-8D9B21A6E369}.Release|Any CPU.Build.0 = Release|Any CPU
+		{BE0E7198-95F7-4EFA-BFE1-CA5BBE7798D2}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{BE0E7198-95F7-4EFA-BFE1-CA5BBE7798D2}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{BE0E7198-95F7-4EFA-BFE1-CA5BBE7798D2}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{BE0E7198-95F7-4EFA-BFE1-CA5BBE7798D2}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {8BAFACEF-C8ED-4ADA-A33E-7A62B410E9B5}
+	EndGlobalSection
+EndGlobal

Lab4/README.md

@@ -0,0 +1,6 @@
+# Lab4 example project
+
+This project is from the "Object oriented programming" course in KTU.
+
+It is not polished in any way, so don't expect anything from this.
+

Lab4/global.json

@@ -0,0 +1,5 @@
+{
+	"sdk": {
+		"version": "3.0.103"
+	}
+}