想象一下这个字符串:
_ _ _ _ _ _ _
| _| _||_||_ |_ ||_||_|
||_ _| | _||_| ||_| _|
拆分此字符串以便每个数字都可以由它自己处理的最简单/最好的方法是什么?
我在想类似的东西
public string[] SplitIntoNumbers(string input)
结果会怎样
[" | |", " _ _||_ ", " _ _| _|", ...]
有什么想法吗?
编辑
对于想要更多信息的人 - 问题来自 BankOCR -kata 在 CodingDojo .我意识到有多种方法可以“完成工作”——解决方案,但我觉得必须有一种更“奇特”的方法来解决它。类似 clojure 的东西。
最佳答案
你问:
What would be the easiest / nicest way of splitting this string so that each number could be handled by it self?
...我认为您可能过于从 OO 的角度来处理这个问题。您所说的实际上是一种“字体”,而不是一组字符。坦率地说,我只是将逻辑包装到一个类中,并完全按照您在这篇文章中所做的那样定义字符数据。它易于查看、编辑和维护。
如果您的最终目标只是渲染,还是解析,我从您的原始帖子中无法理解。不管怎样,我不能只停留在数字上;)
static void Main()
{
LineBuffers lb = new LineBuffers(80 / 3);
lb.Write(0, "-_ 1234567890");
Console.WriteLine(String.Join(Environment.NewLine, lb.Lines.ToArray()));
Console.WriteLine();
Console.WriteLine(lb.ReadLine());
lb.Clear();
lb.Write(0, "abcdefghijklm");
Console.WriteLine(String.Join(Environment.NewLine, lb.Lines.ToArray()));
Console.WriteLine();
Console.WriteLine(lb.ReadLine());
lb.Clear();
lb.Write(0, "nopqrstuvwxyz");
Console.WriteLine(String.Join(Environment.NewLine, lb.Lines.ToArray()));
Console.WriteLine();
Console.WriteLine(lb.ReadLine());
lb = new LineBuffers(" _ _ _ _ ", "|_| _ | |_ |_|", @"|\ |_||_-|_ |\ ");
Console.WriteLine(lb.ReadLine());
}
public class LineBuffers
{
private static string Characters = " -0123456789_abcdefghijklmnopqrstuvwxyz";
private static readonly string[] Format =
(
@". . . _ . . _ . _ . . _ . _ . _ . _ . _ . . _ . . _ . . _ . _ . _ . . _ . _. . . . . . _ . _ . _ . _ .___. . . . . .__ ." + "\n" +
@". . _ .| |. |. _|. _|.|_|.|_ .|_ . |.|_|.|_|. .|_|.|_ .| . _|.|_ .|_ .| .|_|. | . |.|/ .| .|\|.|\|. _ .|_|.|_|.|_|./_ . | .| |.| |.|||. \/. \/. / ." + "\n" +
@". . .|_|. |.|_ . _|. |. _|.|_|. |.|_|. _|.___.| |.|_|.|_ .|_|.|_ .| .|_-.| |. | . _|.|\ .|_ .|||.| |.|_|.| . |.|\ . _/. | .|_|.|/ .|/|. /\. | ./_ ."
).Split('\n');
private readonly char[][] _lines;
public LineBuffers(int charWidth)
{
_lines = new char[3][] {new char[charWidth*3], new char[charWidth*3], new char[charWidth*3]};
Clear();
}
public LineBuffers(string line1, string line2, string line3)
: this(line1.ToCharArray(), line2.ToCharArray(), line3.ToCharArray()) { }
public LineBuffers(char[] line1, char[] line2, char[] line3)
{
if (line1 == null || line2 == null || line3 == null
|| line1.Length != line2.Length || line2.Length != line3.Length)
throw new ArgumentException();
_lines = new char[3][] {
line1, line2, line3
};
}
public int Count { get { return _lines[0].Length / 3; } }
public IEnumerable<string> Lines { get { return _lines.Select(chars => new String(chars)); } }
public void Clear()
{
for (int i = 0; i < Count; i++)
Write(i, ' ');
}
public void Write(int position, IEnumerable<Char> character)
{ foreach (char ch in character) Write(position++, ch); }
public void Write(int position, Char character)
{
int charIx = Characters.IndexOf(Char.ToLower(character));
if (charIx < 0)
throw new ArgumentOutOfRangeException("character");
if (position >= Count)
throw new ArgumentOutOfRangeException("position");
int offset = charIx*4 + 1;
for(int line=0; line <3; line++)
Array.Copy(Format[line].ToCharArray(offset, 3), 0, _lines[line], position * 3, 3);
}
public Char Read(int position)
{
if (position >= Count)
throw new ArgumentOutOfRangeException("position");
IEnumerable<int> found = Find(Format[0], _lines[0], position*3)
.Intersect(Find(Format[1], _lines[1], position*3))
.Intersect(Find(Format[2], _lines[2], position*3));
int[] result = found.ToArray();
if (result.Length != 1)
throw new FormatException();
return Characters[result[0]];
}
IEnumerable<int> Find(string findIn, char[] text, int charIx)
{
for(int i=1; i < findIn.Length; i += 4)
{
if (findIn[i] == text[charIx] && findIn[i + 1] == text[charIx + 1] && findIn[i + 2] == text[charIx + 2])
yield return i/4;
}
}
public string ReadLine()
{
char[] text = new char[Count];
for (int ix = 0; ix < Count; ix++)
text[ix] = Read(ix);
return new String(text);
}
}
前面的程序输出以下文本:
_ _ _ _ _ _ _ _
_ | _| _||_||_ |_ ||_||_|| |
___ ||_ _| | _||_| ||_| _||_|
-_ 1234567890
_ _ _ _ _ _ _
|_||_ | _||_ |_ | |_| | ||/ | |\|
| ||_||_ |_||_ | |_-| | | _||\ |_ |||
abcdefghijklm
_ _ _ _ ___ __
|\| _ |_||_||_|/_ | | || |||| \/ \/ /
| ||_|| ||\ _/ | |_||/ |/| /\ | /_
nopqrstuvwxyz
关于c# - 一次读取一个字符串,3x3 个字符,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/7235688/