どう書く?orgのお題、文字列の八方向検索投稿用に書きました。
using System.Collections.Generic;
using System.Text;
using Microsoft.VisualBasic;
namespace どう書く_org文字列の八方向検索 {
class Program {
static string search;
static List<string> list;
static void Main(string[] args) {
string sample =
@"リオウウリウ
ウオリウオリ
オリリオリウ
リリオオウオ";
search = "ウオリ";
char sp = new char { '\n' };
int width = sample.Split(sp)[0].Length;
int height = sample.Split(sp).Length;
list = new List<string>(sample.Split(sp));
for(int y = 0; y < list.Count; y++) {
for(int x = 0; x < list[y].Length; x++) {
if(list[y][x] == search[0]) {
if(E(x, y) == search) {
Console.WriteLine("(" + x + "," + y + ")" + "," + "右");
}
if(W(x, y) == search) {
Console.WriteLine("(" + x + "," + y + ")" + "," + "左");
}
if(S(x, y) == search) {
Console.WriteLine("(" + x + "," + y + ")" + "," + "下");
}
if(N(x, y) == search) {
Console.WriteLine("(" + x + "," + y + ")" + "," + "上");
}
if(NE(x, y) == search) {
Console.WriteLine("(" + x + "," + y + ")" + "," + "右上");
}
if(SE(x, y) == search) {
Console.WriteLine("(" + x + "," + y + ")" + "," + "右下");
}
if(NW(x, y) == search) {
Console.WriteLine("(" + x + "," + y + ")" + "," + "左上");
}
if(SW(x, y) == search) {
Console.WriteLine("(" + x + "," + y + ")" + "," + "左下");
}
}
}
}
Console.ReadLine();
}
static string E(int x, int y) {
try {
return list[y].Substring(x, search.Length);
} catch(ArgumentOutOfRangeException) { return ""; }
catch(IndexOutOfRangeException) { return ""; }
}
static string W(int x, int y) {
try {
return Strings.StrReverse(E(x - search.Length + 1, y));
} catch(ArgumentOutOfRangeException) { return ""; }
catch(IndexOutOfRangeException) { return ""; }
}
static string S(int x, int y) {
try {
StringBuilder strb = new StringBuilder();
for(int i = 0; i < search.Length; i++) {
strb.Append(list[y + i][x]);
}
return strb.ToString();
} catch(ArgumentOutOfRangeException) { return ""; }
catch(IndexOutOfRangeException) { return ""; }
}
static string N(int x, int y) {
try {
return Strings.StrReverse(S(x, y - search.Length + 1));
} catch(ArgumentOutOfRangeException) { return ""; }
catch(IndexOutOfRangeException) { return ""; }
}
static string SE(int x, int y) {
try {
StringBuilder strb = new StringBuilder();
for(int i = 0; i < search.Length; i++) {
strb.Append(list[y + i][x + i]);
}
return strb.ToString();
} catch(ArgumentOutOfRangeException) { return ""; }
catch(IndexOutOfRangeException) { return ""; }
}
static string NW(int x, int y) {
try {
return Strings.StrReverse(SE(x - search.Length + 1, y - search.Length + 1));
} catch(ArgumentOutOfRangeException) { return ""; }
catch(IndexOutOfRangeException) { return ""; }
}
static string NE(int x, int y) {
try {
StringBuilder strb = new StringBuilder();
for(int i = 0; i < search.Length; i++) {
strb.Append(list[y - i][x + i]);
}
return strb.ToString();
} catch(ArgumentOutOfRangeException) { return ""; }
catch(IndexOutOfRangeException) { return ""; }
}
static string SW(int x, int y) {
try {
return Strings.StrReverse(NE(x - search.Length + 1, y + search.Length - 1));
} catch(ArgumentOutOfRangeException) { return ""; }
catch(IndexOutOfRangeException) { return ""; }
}
}
}