在检查搜索中忽略特殊字符(标题) [英] Ignore Special Characters (tittles) in Examine search
问题描述
使用 Umbraco v6，检查搜索(不是完整的 Lucene 查询).这是一个拉丁美洲/南美网站.我问过我的同事他们如何在搜索/URL 中输入标题(字母上的重音标记)，他们都说他们没有，他们只是使用常规"字符(A-Z，a-z).
Using Umbraco v6, Examine search (not full blown Lucene queries). This is a Latin/South American website. I've asked my colleagues how they type in tittles (accent mark over a letter) for search/URL, and they all said that they don't, they just use "regular" characters (A-Z, a-z).
我知道如何在传递给 Examine 时去除字符串中的特殊字符 OUT，但我需要另一种方式，如在 Examine 中从属性中删除特殊字符以匹配查询.我有许多节点"名称中有标题(这是我正在搜索的属性之一).
I know how to strip special characters OUT of the string when passing to Examine, but I need the other way around, as in Examine removing the special characters from properties to match to the query. I have numerous "nodes" that have tittles in the name (which is one of the properties that I am searching on).
我研究过的帖子:
- http://shazwazza.com/categories/Examine?p=2
- 忽略检查中的特殊字符
- https://groups.google.com/forum/#!topic/umbraco-dev/W6cWyPOc43Y
我已经尝试编写 luence 查询(或者我认为是这样)，但我没有得到任何点击.
I've tried writing the luence query (or so I think) but I'm not getting in any hits.
// q is my query from QueryString
var searcher = ExamineManager.Instance.SearchProviderCollection["CustomSearchSearcher"];
//var query = searcher.CreateSearchCriteria().Field("nodeName", q).Or().Field("description", q).Compile();
//var searchResults = searcher.Search(query).OrderByDescending(x => x.Score).TakeWhile(x => x.Score > 0.05f);
var searchResults = searcher.Search(Global.RemoveSpecialCharacters(q), true).OrderByDescending(x => x.Score).TakeWhile(x => x.Score > 0.05f);
全局类
public static string RemoveSpecialCharacters(string str)
{
StringBuilder sb = new StringBuilder();
for (int i = 0; i < str.Length; i++)
{
if ((str[i] >= '0' && str[i] <= '9')
|| (str[i] >= 'A' && str[i] <= 'z' || (str[i] == '.' || str[i] == '_'))
|| str[i] == 'á' || str[i] == 'é' || str[i] == 'í' || str[i] == 'ñ' || str[i] == 'ó' || str[i] == 'ú')
{
sb.Append(str[i]);
}
}
return sb.ToString();
}
如上所述，我需要从 Lucene 中删除特殊字符(标题)，而不是传入的查询.
As stated above, I need special characters (tittles) removed from Lucene, not the query passed in.
来自:https://our.umbraco.org/documentation/reference/searching/examine/overview-explanation
我也读过有关分析器"的文章，但我以前从未与它们合作过，也不知道要获取/安装/添加到 VS 等中的哪个(哪些).这是解决此问题的更好方法吗???
I've also read about "Analyzers", but I have never worked with them before, nor know which one(s) to get/install/add to VS, etc. Is that the better way to go about this??
推荐答案
自定义分析器就是答案.
A custom analyzer is the answer.
这是在 umbraco 论坛上的回答:https://our.umbraco.org/forum/developers/extending-umbraco/16396-Examine-and-accents-for-portuguese-language
This is answered on the umbraco forum here: https://our.umbraco.org/forum/developers/extending-umbraco/16396-Examine-and-accents-for-portuguese-language
制作一个去除所有特殊字符的分析器:
Make a analyzer that strips all special characters:
public class CIAIAnalyser : Analyzer
{
public override TokenStream TokenStream(string fieldName, System.IO.TextReader reader)
{
StandardTokenizer tokenizer = new StandardTokenizer(Lucene.Net.Util.Version.LUCENE_29, reader);
tokenizer.SetMaxTokenLength(255);
TokenStream stream = new StandardFilter(tokenizer);
stream = new LowerCaseFilter(stream);
return new ASCIIFoldingFilter(stream);
}
}
然后对搜索输入执行相同的操作.
Then you do the same for the search input.
public class CleanAccent
{
public static string RemoveDiacritics(string input)
{
// Indicates that a Unicode string is normalized using full canonical decomposition.
if (String.IsNullOrEmpty(input)) return input;
string inputInFormD = input.Normalize(NormalizationForm.FormD);
var sb = new StringBuilder();
for (int idx = 0; idx < inputInFormD.Length; idx++)
{
UnicodeCategory uc = CharUnicodeInfo.GetUnicodeCategory(inputInFormD[idx]);
if (uc != UnicodeCategory.NonSpacingMark)
{
sb.Append(inputInFormD[idx]);
}
}
return (sb.ToString().Normalize(NormalizationForm.FormC));
}
}
然后在ExamineSettings.config 中引用分析器.
then reference the analyzer in ExamineSettings.config.
这篇关于在检查搜索中忽略特殊字符(标题)的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
