C# 登録したフォルダのテキストファイルから特定の用語をチェック

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

using System.IO;
using System.Text.RegularExpressions;

namespace log_chk
{
    public partial class Form1 : Form
    {
        NotifyIcon n;

        public Form1()
        {

            InitializeComponent();

            WindowState = FormWindowState.Minimized;
            ShowInTaskbar = false;

            string path_icon = @"C:\Users\s.okamura\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\KJIGEKB9\favicon[3].ico";
            path_icon = @"C:\Windows\System32\PerfCenterCpl.ico";
            
            n = new NotifyIcon(this.components);
            n.Icon = new Icon(path_icon);
            n.Visible = true;
            n.Click += new EventHandler((object sender, EventArgs e) => {
                if(WindowState == FormWindowState.Minimized)
                {
                    WindowState = FormWindowState.Normal;
                    ShowInTaskbar = true;
                }
                else
                {
                    WindowState = FormWindowState.Minimized;
                    ShowInTaskbar = false;
                }
            });

            load_files();

        }

        private void load_files()
        {
            textBox1.Text = "";
            textBox2.Text = "";
            textBox3.Text = "";
            textBox4.Text = "";

            for (int i = 1; i <= 3; i++)
            {
                StreamReader sr = new StreamReader(Application.StartupPath + @"\dat" + i.ToString() +".txt", Encoding.GetEncoding("shift_jis"));

                try
                {
                    string buff = "";

                    while (sr.Peek() > -1)
                    {
                        buff += sr.ReadLine() + Environment.NewLine;
                    }

                    if (i == 1) textBox1.Text = buff;
                    if (i == 2) textBox2.Text = buff;
                    if (i == 3) textBox3.Text = buff;
                }
                finally
                {
                    sr.Close();
                }
            }


            set_timer();
        }

        Timer t;

        private void set_timer()
        {

            if (t != null)
            {
                t.Dispose();
                t = null;
            }
            else
            {
                textBox4.Text = "";
                label5.Text = DateTime.Now.ToString("yy/MM/dd hh:mm:ss");
                init();
            }

            t = new Timer();

            //t.Enabled = true;
            t.Interval = int.Parse(textBox3.Text) * 1000;
            t.Tick += new EventHandler((object sender, EventArgs e) => {
                textBox4.Text = "";
                label5.Text = DateTime.Now.ToString("yy/MM/dd hh:mm:ss");
                init();
            });

            t.Start();

        }

        bool flg = false;

        private void init()
        {

            StringReader sr_files = new StringReader(textBox2.Text);
            StringReader sr_words = new StringReader(textBox1.Text);
            List<string> list_files = new List<string>();
            List<string> list_words = new List<string>();

            try
            {
                // Peek()は読み取り対象の次の文字を返す。存在しないと -1 を返す。

                while (sr_files.Peek() > -1)
                {
                    list_files.Add(sr_files.ReadLine());
                }

                while (sr_words.Peek() > -1)
                {
                    list_words.Add(sr_words.ReadLine());
                }

                foreach(string f in list_files)
                {
                    foreach(string w in list_words)
                    {
                        chk(f, w);
                    }
                }

            }
            finally
            {
                sr_words.Close();
                sr_files.Close();
            }

            if (flg)
            {
                n.BalloonTipText = "LOG CHECK";
                n.ShowBalloonTip(10000);
                flg = false;
            }

        }

        private string enc(string str)
        {
            Encoding src = Encoding.ASCII;
            Encoding dst = Encoding.GetEncoding("shift_jis");

            byte[] tmp = src.GetBytes(str);
            byte[] sjis_tmp = Encoding.Convert(src,dst,tmp);

            string sjis_str = dst.GetString(sjis_tmp);
            return sjis_str;
        }

        private void chk(string f, string w)
        {

            StreamReader sr = null;
            
            //f = enc(f);

            try
            {
                sr = new StreamReader(f, Encoding.GetEncoding("shift_jis"));

                int r = 1;

                while (sr.Peek() > -1)
                {
                    string ln = sr.ReadLine();
                    Match m = Regex.Match(ln, w);

                    if (m.Success)
                    {
                        textBox4.Text += r.ToString() + " " + ln + " (" + f + ")" + Environment.NewLine;
                        flg = true;
                    }

                    r++;
                }
            }
            catch(UnauthorizedAccessException e)
            {
                MessageBox.Show(e.Message);
                return;
            }
            finally
            {
                if(sr != null) sr.Close();
            }

            //sr.ReadToEndで読んで、Matchesを使うと一発。
            //MatchCollection matched = Regex.Matches(buff, w);

            /*
            foreach (Match m in matched)
            {
                textBox4.Text += m.Value;
            }
            */

        }

        private void button1_Click(object sender, EventArgs e)
        {
            for (int i = 1; i <= 3; i++)
            {
                StreamWriter sw = new StreamWriter(Application.StartupPath + @"\dat" + i.ToString() + ".txt", false, System.Text.Encoding.GetEncoding("shift_jis"));

                try
                {
                    if (i == 1) sw.Write(textBox1.Text);
                    if (i == 2) sw.Write(textBox2.Text);
                    if (i == 3) sw.Write(textBox3.Text);
                }
                finally
                {
                    sw.Close();
                }
            }
            MessageBox.Show("登録しました。");
            set_timer();
        }

        private void button2_Click_1(object sender, EventArgs e)
        {
            if (t != null) t.Start();
        }

        private void button3_Click(object sender, EventArgs e)
        {
            if (t != null) t.Stop();
        }
    }
}

//非ジェネリック版コレクションは使わない。
//ArrayList は List<T> が正しい。
//ジェネリック = 型をパラメータで渡す。
//ArrayListはObjectにアップキャスト
//List<T>は型を指定してインスタンスを作る。

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using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

using System.IO;

using System.Text.RegularExpressions;

namespace log_chk

{

public partial class Form1 : Form

{

NotifyIcon n;

public Form1()

{

InitializeComponent();

WindowState = FormWindowState.Minimized;

ShowInTaskbar = false;

string path_icon = @"C:\Users\s.okamura\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\KJIGEKB9\favicon[3].ico";

path_icon = @"C:\Windows\System32\PerfCenterCpl.ico";

n = new NotifyIcon(this.components);

n.Icon = new Icon(path_icon);

n.Visible = true;

n.Click += new EventHandler((object sender, EventArgs e) => {

if(WindowState == FormWindowState.Minimized)

{

WindowState = FormWindowState.Normal;

ShowInTaskbar = true;

}

else

{

WindowState = FormWindowState.Minimized;

ShowInTaskbar = false;

}

});

load_files();

}

private void load_files()

{

textBox1.Text = "";

textBox2.Text = "";

textBox3.Text = "";

textBox4.Text = "";

for (int i = 1; i <= 3; i++)

{

StreamReader sr = new StreamReader(Application.StartupPath + @"\dat" + i.ToString() +".txt", Encoding.GetEncoding("shift_jis"));

try

{

string buff = "";

while (sr.Peek() > -1)

{

buff += sr.ReadLine() + Environment.NewLine;

}

if (i == 1) textBox1.Text = buff;

if (i == 2) textBox2.Text = buff;

if (i == 3) textBox3.Text = buff;

}

finally

{

sr.Close();

}

set_timer();

}

Timer t;

private void set_timer()

{

if (t != null)

{

t.Dispose();

t = null;

}

else

{

textBox4.Text = "";

label5.Text = DateTime.Now.ToString("yy/MM/dd hh:mm:ss");

init();

}

t = new Timer();

//t.Enabled = true;

t.Interval = int.Parse(textBox3.Text) * 1000;

t.Tick += new EventHandler((object sender, EventArgs e) => {

textBox4.Text = "";

label5.Text = DateTime.Now.ToString("yy/MM/dd hh:mm:ss");

init();

});

t.Start();

}

bool flg = false;

private void init()

{

StringReader sr_files = new StringReader(textBox2.Text);

StringReader sr_words = new StringReader(textBox1.Text);

List<string> list_files = new List<string>();

List<string> list_words = new List<string>();

try

{

// Peek()は読み取り対象の次の文字を返す。存在しないと -1 を返す。

while (sr_files.Peek() > -1)

{

list_files.Add(sr_files.ReadLine());

}

while (sr_words.Peek() > -1)

{

list_words.Add(sr_words.ReadLine());

}

foreach(string f in list_files)

{

foreach(string w in list_words)

{

chk(f, w);

}

finally

{

sr_words.Close();

sr_files.Close();

}

if (flg)

{

n.BalloonTipText = "LOG CHECK";

n.ShowBalloonTip(10000);

flg = false;

}

private string enc(string str)

{

Encoding src = Encoding.ASCII;

Encoding dst = Encoding.GetEncoding("shift_jis");

byte[] tmp = src.GetBytes(str);

byte[] sjis_tmp = Encoding.Convert(src,dst,tmp);

string sjis_str = dst.GetString(sjis_tmp);

return sjis_str;

}

private void chk(string f, string w)

{

StreamReader sr = null;

//f = enc(f);

try

{

sr = new StreamReader(f, Encoding.GetEncoding("shift_jis"));

int r = 1;

while (sr.Peek() > -1)

{

string ln = sr.ReadLine();

Match m = Regex.Match(ln, w);

if (m.Success)

{

textBox4.Text += r.ToString() + " " + ln + " (" + f + ")" + Environment.NewLine;

flg = true;

}

r++;

}

catch(UnauthorizedAccessException e)

{

MessageBox.Show(e.Message);

return;

}

finally

{

if(sr != null) sr.Close();

}

//sr.ReadToEndで読んで、Matchesを使うと一発。

//MatchCollection matched = Regex.Matches(buff, w);

foreach (Match m in matched)

{

textBox4.Text += m.Value;

}

private void button1_Click(object sender, EventArgs e)

{

for (int i = 1; i <= 3; i++)

{

StreamWriter sw = new StreamWriter(Application.StartupPath + @"\dat" + i.ToString() + ".txt", false, System.Text.Encoding.GetEncoding("shift_jis"));

try

{

if (i == 1) sw.Write(textBox1.Text);

if (i == 2) sw.Write(textBox2.Text);

if (i == 3) sw.Write(textBox3.Text);

}

finally

{

sw.Close();

}

MessageBox.Show("登録しました。");

set_timer();

}

private void button2_Click_1(object sender, EventArgs e)

{

if (t != null) t.Start();

}

private void button3_Click(object sender, EventArgs e)

{

if (t != null) t.Stop();

}

//非ジェネリック版コレクションは使わない。

//ArrayList は List<T> が正しい。

//ジェネリック = 型をパラメータで渡す。

//ArrayListはObjectにアップキャスト

//List<T>は型を指定してインスタンスを作る。