[英]How to move cursor at first character positon using jquery mask plugin?
[英]How to mask string after first character
假设我有一个包含人名的字符串:
var name = "Jason, Bruno Mars";
如何用逗号后面的名称用X
屏蔽string
并返回:
var name = "Jason, BXXXX MXXX";
我尝试使用以下方法,但只屏蔽了前面的字符:
string first, second, output;
bool hasSpace, hasComma;
int int_LENGTH;
var name = "Jason, Bruno Mars";
hasComma = name.Contains(",");
if (hasComma == true)
{
int_LENGTH = name.IndexOf(",");
if (int_LENGTH > 0)
{
first = name.Substring(0, int_LENGTH);
}
second = string.Join(",", name.Split(" ").Skip(1));
hasSpace = second.Contains(" ");
if (hasSpace == true)
{
second = string.Concat(new string('X', 12), second.Substring(second.Length - 4));
output = first + "," + second;
}
}
任何人都对如何以更有效的方式实现相同的结果有更好的想法?
另一种选择,使用Regex.Matches选择除第一个字母之外的名称部分。 正则表达式收集由空格分隔的所有字符串部分,跳过逗号之前的内容。
然后将Matches
集合传递给 Linq 的Aggregate()方法以执行替换。
StringBuilder用于存储由其自己的Replace()方法生成的字符串:
string theName = "Jason Et Alt., Bruno Mars And More Names";
var matches = Regex.Matches(theName, @"(?!.*?,)\s+?.(\w+)");
string outName = matches.OfType<Match>().Aggregate(new StringBuilder(theName), (sb, m) =>
sb.Replace(m.Groups[1].Value, new string('X', m.Groups[1].Length))).ToString();
outname = Jason Et Alt., BXXXX MXXX AXX MXXX NXXXX
static string MaskName(string name)
{
string maskedString = string.Empty;
string[] names = name.Split(',');
if (names.Length > 0)
{
maskedString = names[0] + ",";
}
if (names.Length > 1)
{
string[] arrName = names[1].Split(' ');
foreach (string s in arrName)
{
if (s.Length > 0)
maskedString += " " + s[0].ToString().PadRight(s.Length, 'X');
}
}
return maskedString;
}
Using This code..
static string MaskName(string name)
{
string maskedString = string.Empty;
string[] names = name.Split(',');
if (names.Length > 0)
{
maskedString = names[0] + ",";
}
if (names.Length > 1)
{
string[] arrName = names[1].Split(' ');
foreach (string s in arrName)
{
if (s.Length > 0)
maskedString += " " + s[0].ToString().PadRight(s.Length, 'X');
}
}
return maskedString;
}
尝试这个
private string ReturnMaskedName(string name)
{
string temporary = "";
var newname = (name.Split(new string[] { "," }, StringSplitOptions.None)[1].Trim().Split(new String[] { " " }, StringSplitOptions.None));
foreach (string allnames in newname)
{
temporary = temporary + " " + allnames[0].ToString() + new string('X', allnames.Length - 1);
}
return name.Split(new string[] { " " }, StringSplitOptions.None)[0] + " " + temporary;
}
没有Split
、 Regex
和using System.Linq
有效屏蔽方法:
对于 C# 版本 < 7.2:
static string MaskName(string name)
{
int indexOfComma = name.IndexOf(',');
if (indexOfComma != -1)
{
char[] temp = name.ToCharArray();
bool isFirstChar = true;
for (int i = indexOfComma + 1; i < temp.Length; i++)
{
if (temp[i] == ' ')
isFirstChar = true;
else if (isFirstChar)
isFirstChar = false;
else
temp[i] = 'X';
}
return new string(temp);
}
else
{
return name;
}
}
对于 C# 版本 >= 7.2:
static string MaskName(ReadOnlySpan<char> name)
{
int indexOfComma = name.IndexOf(',');
if (indexOfComma != -1)
{
Span<char> temp = stackalloc char[name.Length];
name.CopyTo(temp);
bool isFirstChar = true;
for (int i = indexOfComma + 1; i < temp.Length; i++)
{
if (temp[i] == ' ')
isFirstChar = true;
else if (isFirstChar)
isFirstChar = false;
else
temp[i] = 'X';
}
return new string(temp);
}
else
{
return name.ToString();
}
}
private string MaskName(string name)
{
var parts = name.Split(',');
var subparts = parts[1].Split(new[] {' '}, StringSplitOptions.RemoveEmptyEntries);
for (var i = 0; i < subparts.Length; i++)
{
var subpart = subparts[i];
subparts[i] = subpart[0] + new string('X', subpart.Length - 1);
}
return parts[0] + ", " + string.Join(" ", subparts);
}
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