Groovy Documentation

## groovy.json
[Java] Class JsonLexer

    java.lang.Object
      groovy.json.JsonLexer

All Implemented Interfaces:
  java.util.Iterator

    public class JsonLexer

The lexer reads JSON tokens in a streaming fashion from the underlying reader.

Authors:
  Guillaume Laforge

Since:
  1.8.0

Constructor Summary
`JsonLexer(java.io.Reader reader)` Instanciates a lexer with a reader from which to read JSON tokens.

Method Summary
`LineColumnReader` | `getReader()` Underlying reader from which to read the JSON tokens.
`boolean` | `hasNext()` Iterator method to know if another token follows, or if we've reached the end of the stream.
`JsonToken` | `next()` Iterator method to get the next token of the stream.
`JsonToken` | `nextToken()` @return the next token from the stream
`void` | `remove()` Method not implemented.
`int` | `skipWhitespace()` Skips all the whitespace characters and moves the cursor to the next non-space character.
`static java.lang.String` | `unescape(java.lang.String input)` Replace unicode escape and other control characters with real characters

Methods inherited from class java.lang.Object
java.lang.Object#wait(long), java.lang.Object#wait(long, int), java.lang.Object#wait(), java.lang.Object#equals(java.lang.Object), java.lang.Object#toString(), java.lang.Object#hashCode(), java.lang.Object#getClass(), java.lang.Object#notify(), java.lang.Object#notifyAll()

Constructor Detail

### JsonLexer

    public JsonLexer(java.io.Reader reader)

  Instanciates a lexer with a reader from which to read JSON tokens. Under the hood, the reader is wrapped in a `LineColumnReader`, for line and column information, unless it's already an instance of that class.
  Parameters:
    `reader` - underlying reader

Method Detail

### getReader

    public LineColumnReader getReader()

  Underlying reader from which to read the JSON tokens. This reader is an instance of `LineColumnReader`, to keep track of line and column positions.

### hasNext

    public boolean hasNext()

  Iterator method to know if another token follows, or if we've reached the end of the stream.
  Returns:
    true if there are more tokens

### next

    public JsonToken next()

  Iterator method to get the next token of the stream.
  Returns:
    the next token

### nextToken

    public JsonToken nextToken()

  Returns:
    the next token from the stream

### remove

    public void remove()

  Method not implemented.
  throws:
    UnsupportedOperationException

### skipWhitespace

    public int skipWhitespace()

  Skips all the whitespace characters and moves the cursor to the next non-space character.

### unescape

    public static java.lang.String unescape(java.lang.String input)

  Replace unicode escape and other control characters with real characters
  Parameters:
    `input` - text
  Returns:
    input text without the escaping

Groovy Documentation