From d5ed89b946297270ec28abf44bef2371a06f1f4f Mon Sep 17 00:00:00 2001 From: Hilko Bengen Date: Sat, 7 Jun 2014 12:02:12 +0200 Subject: Imported Upstream version 1.0.3 --- docs/reference/analysis/analyzers.asciidoc | 71 ++++++++++++++++++++++++++++++ 1 file changed, 71 insertions(+) create mode 100644 docs/reference/analysis/analyzers.asciidoc (limited to 'docs/reference/analysis/analyzers.asciidoc') diff --git a/docs/reference/analysis/analyzers.asciidoc b/docs/reference/analysis/analyzers.asciidoc new file mode 100644 index 0000000..b97231b --- /dev/null +++ b/docs/reference/analysis/analyzers.asciidoc @@ -0,0 +1,71 @@ +[[analysis-analyzers]] +== Analyzers + +Analyzers are composed of a single <> +and zero or more <>. The tokenizer may +be preceded by one or more <>. +The analysis module allows you to register `Analyzers` under logical +names which can then be referenced either in mapping definitions or in +certain APIs. + +Elasticsearch comes with a number of prebuilt analyzers which are +ready to use. Alternatively, you can combine the built in +character filters, tokenizers and token filters to create +<>. + +[float] +[[default-analyzers]] +=== Default Analyzers + +An analyzer is registered under a logical name. It can then be +referenced from mapping definitions or certain APIs. When none are +defined, defaults are used. There is an option to define which analyzers +will be used by default when none can be derived. + +The `default` logical name allows one to configure an analyzer that will +be used both for indexing and for searching APIs. The `default_index` +logical name can be used to configure a default analyzer that will be +used just when indexing, and the `default_search` can be used to +configure a default analyzer that will be used just when searching. + +[float] +[[aliasing-analyzers]] +=== Aliasing Analyzers + +Analyzers can be aliased to have several registered lookup names +associated with them. For example, the following will allow +the `standard` analyzer to also be referenced with `alias1` +and `alias2` values. + + +[source,js] +-------------------------------------------------- +index : + analysis : + analyzer : + standard : + alias: [alias1, alias2] + type : standard + stopwords : [test1, test2, test3] +-------------------------------------------------- + +Below is a list of the built in analyzers. + +include::analyzers/standard-analyzer.asciidoc[] + +include::analyzers/simple-analyzer.asciidoc[] + +include::analyzers/whitespace-analyzer.asciidoc[] + +include::analyzers/stop-analyzer.asciidoc[] + +include::analyzers/keyword-analyzer.asciidoc[] + +include::analyzers/pattern-analyzer.asciidoc[] + +include::analyzers/lang-analyzer.asciidoc[] + +include::analyzers/snowball-analyzer.asciidoc[] + +include::analyzers/custom-analyzer.asciidoc[] + -- cgit v1.2.3