org.apache.tapestry5.services

## Interface URLEncoder

- All Known Implementing Classes:
    URLEncoderImpl

      public interface URLEncoder

  Service used to encode or decode strings that are placed into URLs. This is used as an alternative to UUEncoding. Alphabetics, numbers and some punctuation ("-", "_", ".", ":") are passed through as is, the "$" character is an escape, followed by either another "$", or by a four digit hex unicode number. A null input (not a blank input, but actual null) has a special encoding, "$N". Likewise, the blank string has the special encoding "$B".

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `String` | `decode(String input)` Given a previously encoded string, returns the original input.
    `String` | `encode(String input)` Given an input value containing any characters, returns the input string, or an encoded version of the string (as outlined above).

- - ### Method Detail

    - #### encode

          String encode(String input)

      Given an input value containing any characters, returns the input string, or an encoded version of the string (as outlined above).
      Parameters:
        `input` - string to be encoded, which may be null
      Returns:
        encoded version of input

    - #### decode

          String decode(String input)

      Given a previously encoded string, returns the original input.
      Parameters:
        `input` - encoded string (may not be null)
      Returns:
        decoded input

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