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Pattern Replace Char Filter
editPattern Replace Char Filter
editThe pattern_replace char filter allows the use of a regex to
manipulate the characters in a string before analysis. The regular
expression is defined using the pattern parameter, and the replacement
string can be provided using the replacement parameter (supporting
referencing the original text, as explained
here).
For more information check the
lucene
documentation
Here is a sample configuration:
{
"index" : {
"analysis" : {
"char_filter" : {
"my_pattern":{
"type":"pattern_replace",
"pattern":"sample(.*)",
"replacement":"replacedSample $1"
}
},
"analyzer" : {
"custom_with_char_filter" : {
"tokenizer" : "standard",
"char_filter" : ["my_pattern"]
},
}
}
}
}