Package org.apache.lucene.queryparser.flexible.standard.parser

## Class EscapeQuerySyntaxImpl

- java.lang.Object
- - org.apache.lucene.queryparser.flexible.standard.parser.EscapeQuerySyntaxImpl

- All Implemented Interfaces:
    `EscapeQuerySyntax`

      public class EscapeQuerySyntaxImpl
      extends Object
      implements EscapeQuerySyntax

  Implementation of `EscapeQuerySyntax` for the standard lucene syntax.

- - ### Nested Class Summary

    - ### Nested classes/interfaces inherited from interface org.apache.lucene.queryparser.flexible.core.parser.EscapeQuerySyntax

      `EscapeQuerySyntax.Type`

  - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `EscapeQuerySyntaxImpl()` |

  - ### Method Summary

    All Methods Static Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `static UnescapedCharSequence` | `discardEscapeChar​(CharSequence input)` | Returns a String where the escape char has been removed, or kept only once if there was a double escape.
    `CharSequence` | `escape​(CharSequence text, Locale locale, EscapeQuerySyntax.Type type)` |

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### EscapeQuerySyntaxImpl

          public EscapeQuerySyntaxImpl()

  - ### Method Detail

    - #### escape

          public CharSequence escape​(CharSequence text,
                                     Locale locale,
                                     EscapeQuerySyntax.Type type)

      Specified by:
        `escape` in interface `EscapeQuerySyntax`
      Parameters:
        `text` - - text to be escaped
        `locale` - - locale for the current query
        `type` - - select the type of escape operation to use
      Returns:
        escaped text

    - #### discardEscapeChar

          public static UnescapedCharSequence discardEscapeChar​(CharSequence input)
                                                         throws ParseException

      Returns a String where the escape char has been removed, or kept only once if there was a double escape.

      Supports escaped unicode characters, e. g. translates `A` to `A`.

      Throws:
        `ParseException`