C# 正規表現でテキスト解析

以前も似たようなものを作った。

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 JAN解析
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            int i = 1;
            string path = Application.StartupPath + @"\jan";
            StreamWriter sw = new StreamWriter(Application.StartupPath + @"\out.txt", false, Encoding.GetEncoding("shift_jis"));

            foreach (string fileName in Directory.GetFiles(path))
            {
                this.Text = i.ToString();
                using (StreamReader sr = new StreamReader(fileName, Encoding.GetEncoding("shift_jis")))
                {
                    string line = "";
                    string date = "";
                    string staff_name = "";
                    string point = "";
                    string card_no = "";

                    while (sr.Peek() > -1)
                    {
                        line = sr.ReadLine();

                        if (new Regex("--------------------------------").IsMatch(line))
                        {
                            date = "";
                            staff_name = "";
                            point = "";
                            card_no = "";
                        }
                        else if (new Regex(@"^\d{4}年\d{2}月\d{2}日").IsMatch(line))
                        {
                            Match m = new Regex(@"^\d{4}年\d{2}月\d{2}日").Match(line);
                            date = m.Groups[0].Value;
                        }
                        else if (new Regex(@"^No00[0-9]\S*").IsMatch(line))
                        {
                            Match m = new Regex(@"^No00[0-9](\S*)").Match(line);
                            staff_name = m.Groups[1].Value;
                        }
                        else if (new Regex(@"^\s訂正ﾎﾟｲﾝﾄ\s*[0-9]*点").IsMatch(line))
                        {
                            Match m = new Regex(@"^\s訂正ﾎﾟｲﾝﾄ\s*([0-9]*点)").Match(line);
                            point = m.Groups[1].Value;
                        }
                        else if (new Regex(@"^ｶ-ﾄﾞNO[0-9]*").IsMatch(line))
                        {
                            Match m = new Regex(@"^ｶ-ﾄﾞNO([0-9]*)").Match(line);
                            card_no = m.Groups[1].Value;
                        }

                        if (date != "" && staff_name != "" && point != "" && card_no != "")
                        {
                            string matched = date + "," + staff_name + "," + card_no + "," + point + "\r\n";
                            sw.Write(matched);

                            date = "";
                            staff_name = "";
                            point = "";
                            card_no = "";
                        }
                    }
                }
                i++;
            }
            sw.Close();
            MessageBox.Show("完了");
        }

        private void button2_Click(object sender, EventArgs e)
        {
            int i = 1;
            string path = Application.StartupPath + @"\jan";
            StreamWriter sw = new StreamWriter(Application.StartupPath + @"\out.txt", false, Encoding.GetEncoding("shift_jis"));

            foreach (string fileName in Directory.GetFiles(path))
            {
                this.Text = i.ToString();
                using (StreamReader sr = new StreamReader(fileName, Encoding.GetEncoding("shift_jis")))
                {
                    string line = "";
                    string date = "";
                    string staff_name = "";
                    string point = "";
                    string card_no = "";

                    while (sr.Peek() > -1)
                    {
                        line = sr.ReadLine();

                        if (new Regex("--------------------------------").IsMatch(line))
                        {
                            date = "";
                            staff_name = "";
                            point = "";
                            card_no = "";
                        }
                        else if (new Regex(@"^\d{4}年\d{2}月\d{2}日").IsMatch(line))
                        {
                            Match m = new Regex(@"^\d{4}年\d{2}月\d{2}日").Match(line);
                            date = m.Groups[0].Value;
                        }
                        else if (new Regex(@"^No00[0-9]\S*").IsMatch(line))
                        {
                            Match m = new Regex(@"^No00[0-9](\S*)").Match(line);
                            staff_name = m.Groups[1].Value;
                        }
                        else if (new Regex(@"^\s割引券\s*[0-9]*点").IsMatch(line))
                        {
                            Match m = new Regex(@"^\s割引券\s*([0-9]*)点").Match(line);
                            point = m.Groups[1].Value;
                        }
                        else if (new Regex(@"^ｶ-ﾄﾞNO[0-9]*").IsMatch(line))
                        {
                            Match m = new Regex(@"^ｶ-ﾄﾞNO([0-9]*)").Match(line);
                            card_no = m.Groups[1].Value;
                        }

                        if (date != "" && staff_name != "" && point != "" && card_no != "")
                        {
                            string matched = date + "," + staff_name + "," + card_no + "," + point + "\r\n";
                            sw.Write(matched);

                            date = "";
                            staff_name = "";
                            point = "";
                            card_no = "";
                        }
                    }
                }
                i++;
            }
            sw.Close();
            MessageBox.Show("完了");
        }

        private void button3_Click(object sender, EventArgs e)
        {
            int i = 1;
            string path = Application.StartupPath + @"\jan";
            StreamWriter sw = new StreamWriter(Application.StartupPath + @"\out.txt", false, Encoding.GetEncoding("shift_jis"));

            foreach (string fileName in Directory.GetFiles(path))
            {
                this.Text = i.ToString();
                using (StreamReader sr = new StreamReader(fileName, Encoding.GetEncoding("shift_jis")))
                {
                    string line = "";
                    string date = "";
                    string staff_name = "";
                    string amount = "";
                    string card_no = "";

                    while (sr.Peek() > -1)
                    {
                        line = sr.ReadLine();

                        if (new Regex("--------------------------------").IsMatch(line))
                        {
                            date = "";
                            staff_name = "";
                            amount = "";
                            card_no = "";
                        }
                        else if (new Regex(@"^\d{4}年\d{2}月\d{2}日").IsMatch(line))
                        {
                            Match m = new Regex(@"^\d{4}年\d{2}月\d{2}日").Match(line);
                            date = m.Groups[0].Value;
                        }
                        else if (new Regex(@"^No00[0-9]\S*").IsMatch(line))
                        {
                            Match m = new Regex(@"^No00[0-9](\S*)").Match(line);
                            staff_name = m.Groups[1].Value;
                        }
                        else if (new Regex(@"^合計\s*\\[0-9,]*").IsMatch(line))
                        {
                            Match m = new Regex(@"^合計\s*(\\[0-9,]*)").Match(line);
                            amount = m.Groups[1].Value;
                            amount = amount.Replace(",", "");
                        }
                        else if (new Regex(@"^ｶ-ﾄﾞNO[0-9]*").IsMatch(line))
                        {
                            Match m = new Regex(@"^ｶ-ﾄﾞNO([0-9]*)").Match(line);
                            card_no = m.Groups[1].Value;
                            if (card_no != textBox1.Text) card_no = "";
                        }

                        if (date != "" && staff_name != "" && amount != "" && card_no != "")
                        {
                            string matched = date + "," + staff_name + "," + card_no + "," + amount + "\r\n";
                            sw.Write(matched);

                            date = "";
                            staff_name = "";
                            amount = "";
                            card_no = "";
                        }
                    }
                }
                i++;
            }
            sw.Close();
            MessageBox.Show("完了");
        }
    }
}

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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 JAN解析

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

}

private void button1_Click(object sender, EventArgs e)

{

int i = 1;

string path = Application.StartupPath + @"\jan";

StreamWriter sw = new StreamWriter(Application.StartupPath + @"\out.txt", false, Encoding.GetEncoding("shift_jis"));

foreach (string fileName in Directory.GetFiles(path))

{

this.Text = i.ToString();

using (StreamReader sr = new StreamReader(fileName, Encoding.GetEncoding("shift_jis")))

{

string line = "";

string date = "";

string staff_name = "";

string point = "";

string card_no = "";

while (sr.Peek() > -1)

{

line = sr.ReadLine();

if (new Regex("--------------------------------").IsMatch(line))

{

date = "";

staff_name = "";

point = "";

card_no = "";

}

else if (new Regex(@"^\d{4}年\d{2}月\d{2}日").IsMatch(line))

{

Match m = new Regex(@"^\d{4}年\d{2}月\d{2}日").Match(line);

date = m.Groups[0].Value;

}

else if (new Regex(@"^No00[0-9]\S*").IsMatch(line))

{

Match m = new Regex(@"^No00[0-9](\S*)").Match(line);

staff_name = m.Groups[1].Value;

}

else if (new Regex(@"^\s訂正ﾎﾟｲﾝﾄ\s*[0-9]*点").IsMatch(line))

{

Match m = new Regex(@"^\s訂正ﾎﾟｲﾝﾄ\s*([0-9]*点)").Match(line);

point = m.Groups[1].Value;

}

else if (new Regex(@"^ｶ-ﾄﾞNO[0-9]*").IsMatch(line))

{

Match m = new Regex(@"^ｶ-ﾄﾞNO([0-9]*)").Match(line);

card_no = m.Groups[1].Value;

}

if (date != "" && staff_name != "" && point != "" && card_no != "")

{

string matched = date + "," + staff_name + "," + card_no + "," + point + "\r\n";

sw.Write(matched);

date = "";

staff_name = "";

point = "";

card_no = "";

}

i++;

}

sw.Close();

MessageBox.Show("完了");

}

private void button2_Click(object sender, EventArgs e)

{

int i = 1;

string path = Application.StartupPath + @"\jan";

StreamWriter sw = new StreamWriter(Application.StartupPath + @"\out.txt", false, Encoding.GetEncoding("shift_jis"));

foreach (string fileName in Directory.GetFiles(path))

{

this.Text = i.ToString();

using (StreamReader sr = new StreamReader(fileName, Encoding.GetEncoding("shift_jis")))

{

string line = "";

string date = "";

string staff_name = "";

string point = "";

string card_no = "";

while (sr.Peek() > -1)

{

line = sr.ReadLine();

if (new Regex("--------------------------------").IsMatch(line))

{

date = "";

staff_name = "";

point = "";

card_no = "";

}

else if (new Regex(@"^\d{4}年\d{2}月\d{2}日").IsMatch(line))

{

Match m = new Regex(@"^\d{4}年\d{2}月\d{2}日").Match(line);

date = m.Groups[0].Value;

}

else if (new Regex(@"^No00[0-9]\S*").IsMatch(line))

{

Match m = new Regex(@"^No00[0-9](\S*)").Match(line);

staff_name = m.Groups[1].Value;

}

else if (new Regex(@"^\s割引券\s*[0-9]*点").IsMatch(line))

{

Match m = new Regex(@"^\s割引券\s*([0-9]*)点").Match(line);

point = m.Groups[1].Value;

}

else if (new Regex(@"^ｶ-ﾄﾞNO[0-9]*").IsMatch(line))

{

Match m = new Regex(@"^ｶ-ﾄﾞNO([0-9]*)").Match(line);

card_no = m.Groups[1].Value;

}

if (date != "" && staff_name != "" && point != "" && card_no != "")

{

string matched = date + "," + staff_name + "," + card_no + "," + point + "\r\n";

sw.Write(matched);

date = "";

staff_name = "";

point = "";

card_no = "";

}

i++;

}

sw.Close();

MessageBox.Show("完了");

}

private void button3_Click(object sender, EventArgs e)

{

int i = 1;

string path = Application.StartupPath + @"\jan";

StreamWriter sw = new StreamWriter(Application.StartupPath + @"\out.txt", false, Encoding.GetEncoding("shift_jis"));

foreach (string fileName in Directory.GetFiles(path))

{

this.Text = i.ToString();

using (StreamReader sr = new StreamReader(fileName, Encoding.GetEncoding("shift_jis")))

{

string line = "";

string date = "";

string staff_name = "";

string amount = "";

string card_no = "";

while (sr.Peek() > -1)

{

line = sr.ReadLine();

if (new Regex("--------------------------------").IsMatch(line))

{

date = "";

staff_name = "";

amount = "";

card_no = "";

}

else if (new Regex(@"^\d{4}年\d{2}月\d{2}日").IsMatch(line))

{

Match m = new Regex(@"^\d{4}年\d{2}月\d{2}日").Match(line);

date = m.Groups[0].Value;

}

else if (new Regex(@"^No00[0-9]\S*").IsMatch(line))

{

Match m = new Regex(@"^No00[0-9](\S*)").Match(line);

staff_name = m.Groups[1].Value;

}

else if (new Regex(@"^合計\s*\\[0-9,]*").IsMatch(line))

{

Match m = new Regex(@"^合計\s*(\\[0-9,]*)").Match(line);

amount = m.Groups[1].Value;

amount = amount.Replace(",", "");

}

else if (new Regex(@"^ｶ-ﾄﾞNO[0-9]*").IsMatch(line))

{

Match m = new Regex(@"^ｶ-ﾄﾞNO([0-9]*)").Match(line);

card_no = m.Groups[1].Value;

if (card_no != textBox1.Text) card_no = "";

}

if (date != "" && staff_name != "" && amount != "" && card_no != "")

{

string matched = date + "," + staff_name + "," + card_no + "," + amount + "\r\n";

sw.Write(matched);

date = "";

staff_name = "";

amount = "";

card_no = "";

}

i++;

}

sw.Close();

MessageBox.Show("完了");

}