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HTML Strip Char Filter
The html_strip character filter strips HTML elements from the text and replaces HTML entities with their decoded value (e.g. replacing & with &).
Example outputedit
POST _analyze
{
"tokenizer": "keyword",
"char_filter": [ "html_strip" ], "text": "<p>I'm so <b>happy</b>!</p>" }
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The |
The above example returns the term:
[ \nI‘m so happy!\n ]
The same example with the standard tokenizer would return the following terms:
[ I‘m, so, happy ]
Configurationedit
The html_strip character filter accepts the following parameter:
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An array of HTML tags which should not be stripped from the original text. |
Example configurationedit
In this example, we configure the html_strip character filter to leave <b> tags in place:
PUT my_index
{
"settings": {
"analysis": {
"analyzer": {
"my_analyzer": {
"tokenizer": "keyword",
"char_filter": ["my_char_filter"]
}
},
"char_filter": {
"my_char_filter": {
"type": "html_strip",
"escaped_tags": ["b"]
}
}
}
}
}
POST my_index/_analyze
{
"analyzer": "my_analyzer",
"text": "<p>I'm so <b>happy</b>!</p>"
}
COPY AS CURLVIEW IN CONSOLE
The above example produces the following term:
[ \nI‘m so <b>happy</b>!\n ]
源文：https://www.elastic.co/guide/en/elasticsearch/reference/current/analysis-htmlstrip-charfilter.html#analysis-htmlstrip-charfilter
HTML Strip Char Filter
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