Package groovy.json

Class JsonLexer

java.lang.Object
groovy.json.JsonLexer
All Implemented Interfaces:
Iterator<JsonToken>
public class JsonLexer extends Object implements Iterator<JsonToken>
The lexer reads JSON tokens in a streaming fashion from the underlying reader.
Since:
1.8.0

  • Constructor Details

    • JsonLexer

      public JsonLexer(Reader reader)
      Instantiates 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 Details

    • 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.

    • nextToken

      public JsonToken nextToken()
      Returns:
      the next token from the stream

    • unescape

      public static String unescape(String input)
      Replace unicode escape and other control characters with real characters
      Parameters:
      input - text
      Returns:
      input text without the escaping

    • skipWhitespace

      public int skipWhitespace()
      Skips all the whitespace characters and moves the cursor to the next non-space character.

    • hasNext

      public boolean hasNext()
      Iterator method to know if another token follows, or if we've reached the end of the stream.
      Specified by:
      hasNext in interface Iterator<JsonToken>
      Returns:
      true if there are more tokens

    • next

      public JsonToken next()
      Iterator method to get the next token of the stream.
      Specified by:
      next in interface Iterator<JsonToken>
      Returns:
      the next token

    • remove

      public void remove()
      Method not implemented.
      Specified by:
      remove in interface Iterator<JsonToken>
      Throws:
      UnsupportedOperationException