| Message | Numeric Value | Details |
|---|---|---|
| SymbolTypeNonterminal | 0 | A normal nonterminal. |
| SymbolTypeTerminal | 1 | A normal terminal. |
| SymbolTypeWhitespace | 2 | This Whitespace symbols is a special terminal that is automatically ignored the the parsing engine. Any text accepted as whitespace is considered to be inconsequential and "meaningless". |
| SymbolTypeEnd | 3 | The End symbol is generated when the tokenizer reaches the end of the source text. |
| SymbolTypeCommentStart | 4 | This type of symbol designates the start of a block quote. |
| SymbolTypeCommentEnd | 5 | This type of symbol designates the end of a block quote. |
| SymbolTypeCommentLine | 6 | When the engine reads a token that is recognized as a line comment, the remaining characters on the line are automatically ignored by the parser. |
| SymbolTypeError | 7 | The Error symbol is a general-purpose means of representing characters that were not recognized by the tokenizer. In other words, when the tokenizer reads a series of characters that is not accepted by the DFA engine, a token of this type is created. |