如何用等效字符替换以下特殊字符?
元音:AEIOUaeiou分别为ÁÉÍÓÚáéíóú。并且字母Ñ由N。
表达式:
str = regexprep(str,'[^a-zA-Z]','');
将删除非字母表中的所有字符,但如何替换上面显示的等效字符?
由于
答案 0 :(得分:5)
您可以编写一系列正则表达式,如:
s = regexprep(s,'(?:À|Á|Â|Ã|Ä|Å)','A')
s = regexprep(s,'(?:Ì|Í|Î|Ï)','I')
其他重音字符的等等......(对于大写/小写的情况)
警告:即使是拉丁字母的小子集,也有很多variations
一个更简单的例子:
chars_old = 'ÁÉÍÓÚáéíóú';
chars_new = 'AEIOUaeiou';
str = 'Ámró';
[tf,loc] = ismember(str, chars_old);
str(tf) = chars_new( loc(tf) )
之前的字符串:
>> str
str =
Ámró
后:
>> str
str =
Amro
答案 1 :(得分:5)
以下代码规范化所有变音字符,即ÅÄÖ。
function inputWash {
param(
[string]$inputString
)
[string]$formD = $inputString.Normalize(
[System.text.NormalizationForm]::FormD
)
$stringBuilder = new-object System.Text.StringBuilder
for ($i = 0; $i -lt $formD.Length; $i++){
$unicodeCategory = [System.Globalization.CharUnicodeInfo]::GetUnicodeCategory($formD[$i])
$nonSPacingMark = [System.Globalization.UnicodeCategory]::NonSpacingMark
if($unicodeCategory -ne $nonSPacingMark){
$stringBuilder.Append($formD[$i]) | out-null
}
}
$string = $stringBuilder.ToString().Normalize([System.text.NormalizationForm]::FormC)
return $string.toLower()
}
Write-Host inputWash("ÖÄÅÑÜ");
oaanu
如果您不想要该功能,请发送.toLower()
答案 2 :(得分:1)
万一还有人需要...我做了,所以我花了一些时间查找所有最常见的变音符号:
function [clean_s] = removediacritics(s)
%REMOVEDIACRITICS Removes diacritics from text.
% This function removes many common diacritics from strings, such as
% á - the acute accent
% à - the grave accent
% â - the circumflex accent
% ü - the diaeresis, or trema, or umlaut
% ñ - the tilde
% ç - the cedilla
% å - the ring, or bolle
% ø - the slash, or solidus, or virgule
% uppercase
s = regexprep(s,'(?:Á|À|Â|Ã|Ä|Å)','A');
s = regexprep(s,'(?:Æ)','AE');
s = regexprep(s,'(?:ß)','ss');
s = regexprep(s,'(?:Ç)','C');
s = regexprep(s,'(?:Ð)','D');
s = regexprep(s,'(?:É|È|Ê|Ë)','E');
s = regexprep(s,'(?:Í|Ì|Î|Ï)','I');
s = regexprep(s,'(?:Ñ)','N');
s = regexprep(s,'(?:Ó|Ò|Ô|Ö|Õ|Ø)','O');
s = regexprep(s,'(?:Œ)','OE');
s = regexprep(s,'(?:Ú|Ù|Û|Ü)','U');
s = regexprep(s,'(?:Ý|Ÿ)','Y');
% lowercase
s = regexprep(s,'(?:á|à|â|ä|ã|å)','a');
s = regexprep(s,'(?:æ)','ae');
s = regexprep(s,'(?:ç)','c');
s = regexprep(s,'(?:ð)','d');
s = regexprep(s,'(?:é|è|ê|ë)','e');
s = regexprep(s,'(?:í|ì|î|ï)','i');
s = regexprep(s,'(?:ñ)','n');
s = regexprep(s,'(?:ó|ò|ô|ö|õ|ø)','o');
s = regexprep(s,'(?:œ)','oe');
s = regexprep(s,'(?:ú|ù|ü|û)','u');
s = regexprep(s,'(?:ý|ÿ)','y');
% return cleaned string
clean_s = s;
end
感谢Amro提供的简单解决方案!