Examples of org.apache.wicket.util.parse.metapattern.OptionalMetaPattern

Package org.apache.wicket.util.parse.metapattern

Examples of org.apache.wicket.util.parse.metapattern.OptionalMetaPattern

org.apache.wicket.util.parse.metapattern.OptionalMetaPattern
Makes any MetaPattern optional by enclosing the pattern in an optionality expression. The expression will be something equivalent to "(?:<pattern>)?". @author Jonathan Locke

        MetaPattern.OPTIONAL_WHITESPACE, MetaPattern.EQUALS,
        MetaPattern.OPTIONAL_WHITESPACE, value });


    // Set parse pattern to <key>=<value>?
    setPattern(new MetaPattern(new MetaPattern[] { MetaPattern.OPTIONAL_WHITESPACE, key,
        new OptionalMetaPattern(variableAssignment), MetaPattern.OPTIONAL_WHITESPACE }));
  }

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        MetaPattern.OPTIONAL_WHITESPACE, MetaPattern.EQUALS,
        MetaPattern.OPTIONAL_WHITESPACE, value });


    // Set parse pattern to <key>=<value>?
    setPattern(new MetaPattern(new MetaPattern[] { MetaPattern.OPTIONAL_WHITESPACE, key,
        new OptionalMetaPattern(variableAssignment), MetaPattern.OPTIONAL_WHITESPACE }));
  }

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    // Pattern for =<value>
    final MetaPattern variableAssignment = new MetaPattern(MetaPattern.OPTIONAL_WHITESPACE,
      MetaPattern.EQUALS, MetaPattern.OPTIONAL_WHITESPACE, value);


    // Set parse pattern to <key>=<value>?
    setPattern(new MetaPattern(MetaPattern.OPTIONAL_WHITESPACE, key, new OptionalMetaPattern(
      variableAssignment), MetaPattern.OPTIONAL_WHITESPACE));
  }

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    // Pattern for =<value>
    final MetaPattern variableAssignment = new MetaPattern(MetaPattern.OPTIONAL_WHITESPACE,
      MetaPattern.EQUALS, MetaPattern.OPTIONAL_WHITESPACE, value);


    // Set parse pattern to <key>=<value>?
    setPattern(new MetaPattern(MetaPattern.OPTIONAL_WHITESPACE, key, new OptionalMetaPattern(
      variableAssignment), MetaPattern.OPTIONAL_WHITESPACE));
  }

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        MetaPattern.OPTIONAL_WHITESPACE, MetaPattern.EQUALS,
        MetaPattern.OPTIONAL_WHITESPACE, value });


    // Set parse pattern to <key>=<value>?
    setPattern(new MetaPattern(new MetaPattern[] { MetaPattern.OPTIONAL_WHITESPACE, key,
        new OptionalMetaPattern(variableAssignment), MetaPattern.OPTIONAL_WHITESPACE }));
  }

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Related Classes of org.apache.wicket.util.parse.metapattern.OptionalMetaPattern

org.apache.wicket.util.parse.metapattern.parsers.VariableAssignmentParser

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