实现字符串以PascalCase方式命名

最新推荐文章于 2023-11-13 16:58:30 发布

原创最新推荐文章于 2023-11-13 16:58:30 发布 · 3.1k 阅读

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本文介绍了一个使用 C# 编写的实用函数，该函数能够将不同格式的字符串转换成帕斯卡命名法。通过具体代码展示了如何处理非字母开头的字符串，并实现去除下划线及短横线分隔符，同时确保每个单词首字母大写。

[csharp]view plaincopy 
  

public string ApplyPascalCase(string name)
{
string notStartingAlpha = Regex.Replace(name, "^[^a-zA-Z]+", "");
string workingString = ToLowerExceptCamelCase(notStartingAlpha);
workingString = RemoveSeparatorAndCapNext(workingString);
return workingString;
}
public string ToLowerExceptCamelCase(string input)
{
char[] chars = input.ToCharArray();
for (int i = 0; i < chars.Length; i++)
{
int left = (i > 0 ? i - 1 : i);
int right = (i < chars.Length - 1 ? i + 1 : i);
if (i != left && i != right)
{
if (Char.IsUpper(chars[i]) && Char.IsLetter(chars[left]) && Char.IsUpper(chars[left]))
{
chars[i] = Char.ToLower(chars[i], CultureInfo.InvariantCulture);
}
else if (Char.IsUpper(chars[i]) && Char.IsLetter(chars[right]) && Char.IsUpper(chars[right]))
{
chars[i] = Char.ToLower(chars[i], CultureInfo.InvariantCulture);
}
else if (Char.IsUpper(chars[i]) && !Char.IsLetter(chars[right]))
{
chars[i] = Char.ToLower(chars[i], CultureInfo.InvariantCulture);
}
}
}
if (chars.Length > 0)
chars[chars.Length - 1] = Char.ToLower(chars[chars.Length - 1], CultureInfo.InvariantCulture);
return new string(chars);
}
public string RemoveSeparatorAndCapNext(string input)
{
string dashUnderscore = "-_";
string workingString = input;
char[] chars = workingString.ToCharArray();
int under = workingString.IndexOfAny(dashUnderscore.ToCharArray());
while (under > -1)
{
chars[under + 1] = Char.ToUpper(chars[under + 1], CultureInfo.InvariantCulture);
workingString = new String(chars);
under = workingString.IndexOfAny(dashUnderscore.ToCharArray(), under + 1);
}
chars[0] = Char.ToUpper(chars[0], CultureInfo.InvariantCulture);
workingString = new string(chars);
return Regex.Replace(workingString, "[-_]", "");
注：输入字符串必须以: CODE-NAME 或者 CODE_NAME方式才可正确识别