我正在从.csv文件中大量上传信息,我需要将此字符替换为ascii"�"以获取正常空间"".
对于C/C++/JAVA,字符"�"对应于"\ uFFFD",它似乎称为REPLACEMENT CHARACTER.其他如C#官方文档中的空格类型如U + FEFF,205F,200B,180E,202F.
我正在尝试以这种方式替换
public string Errors="";
public void test(){
string textFromCsvCell= "";
string validCharacters="^[0-9A-Za-z().:%-/ ]+$";
textFromCsvCell="This is my text from csv file"; //ALl spaces aren't normal space " "
string cleaned = textFromCsvCell.Replace("\uFFFD", "\"")
if (Regex.IsMatch(cleaned, validCharacters ))
//All code for insert
else
Errors=cleaned;
//print Errors
}
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测试方法给我看这个文字:
"这是来自csv文件的my�texto"
我尝试了一些解决方案
尝试解决方案1:使用修剪
Regex.Replace(value.Trim(), @"[^\S\r\n]+", " ");
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尝试解决方案2:使用替换
System.Text.RegularExpressions.Regex.Replace(str,@"\s+"," ");
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尝试解决方案3:使用修剪
String.Trim(new char[]{'\uFEFF','\u200B'});
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尝试解决方案4:将[\ S\r \n]添加到validCharacters
string validCharacters="^[\S\r\n0-9A-Za-z().:%-/ ]+$";
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什么都行不通
有人有想法吗?我怎样才能更换它?我非常感谢你的帮助,谢谢
资料来源:
http://www.fileformat.info/info/unicode/char/0fffd/index.htm
我正在尝试在C#中执行替换正则表达式。我尝试编写的方法用UTF-8中的普通空格替换了一些Unicode字符(空格)。
让我用代码解释。我不好写正则表达式,文化信息和正则表达式。
//This method replace white spaces in unicode by whitespaces UTF-8
public static string cleanUnicodeSpaces(string value)
{
//This first pattern works but, remove other special characteres
//For example: mark accents
//string pattern = @"[^\u0000-\u007F]+";
string cleaned = "";
string pattern = @"[^\u0020\u0009\u000D]+"; //Unicode characters
string replacement = ""; //Replace by UTF-8 space
Regex regex = new Regex(pattern);
cleaned = regex.Replace(value, replacement).Trim(); //Trim by quit spaces
return cleaned;
}
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Unicode空格
我编写了基于重试的弹性策略和熔断策略。现在可以工作,但其行为存在问题。
我注意到,当断路器打开half-open并且onBreak()事件再次执行以关闭电路时,会为重试策略触发一次额外的重试(这是状态的另一项the health verification)half-open。
让我一步步解释:
我定义了两个用于重试和断路器的强类型策略:
static Policy<HttpResponseMessage> customRetryPolicy;
static Policy<HttpResponseMessage> customCircuitBreakerPolicy;
static HttpStatusCode[] httpStatusesToProcess = new HttpStatusCode[]
{
HttpStatusCode.ServiceUnavailable, //503
HttpStatusCode.InternalServerError, //500
};
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重试策略的工作方式如下:每个请求两次 (2) 重试,每次重试之间等待五 (5) 秒。如果内部断路器打开,不得重试。仅重试 500 和 503 Http 状态。
customRetryPolicy = Policy<HttpResponseMessage>
//Not execute a retry if the circuit is open
.Handle<BrokenCircuitException>( x =>
{
return !(x is BrokenCircuitException);
})
//Stop if some inner exception match with BrokenCircuitException
.OrInner<AggregateException>(x =>
{
return !(x.InnerException is BrokenCircuitException);
})
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.net-core ×1
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unicode ×1
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