What is wrong with whitespaces in ANTLR?

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I have really simple XML (HTML) parsing ANTLR grammar:\[code\]wiki: ggg+;ggg: tag | text;tag: '<' tx=TEXT { System.out.println($tx.getText()); } '>';text: tx=TEXT { System.out.println($tx.getText()); };CHAR: ~('<'|'>');TEXT: CHAR+;\[/code\]With such input: \[code\]"<ggg> fff"\[/code\] it works fine.But when I start to deal with whitespaces it fails. For example:

• \[code\]" <ggg> fff "\[/code\] - fails at beggining
• \[code\]"<ggg> <hhh> "\[/code\] - fails after \[code\]<ggg>\[/code\]
• \[code\]"<ggg> fff "\[/code\] - works fine
• \[code\]"<ggg> "\[/code\] - fails at end

I don't know what is wrong. Maybe there is some special grammar option to handle this. ANTLRWorks gives me \[code\]NoViableAltException\[/code\].