2218 |
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2219 |
The symbol @code{error} is a terminal symbol reserved for error recovery |
The symbol @code{error} is a terminal symbol reserved for error recovery |
2220 |
(@pxref{Error Recovery}); you shouldn't use it for any other purpose. |
(@pxref{Error Recovery}); you shouldn't use it for any other purpose. |
2221 |
In particular, @code{yylex} should never return this value. |
In particular, @code{yylex} should never return this value. The default |
2222 |
The default value of the error token is 256, so in the |
value of the error token is 256, unless you explicitly assigned 256 to |
2223 |
unlikely event that you need to use a character token with numeric |
one of your tokens with a @code{%token} declaration. |
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value 256 you must reassign the error token's value with a |
|
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@code{%token} declaration. |
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2224 |
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2225 |
@node Rules |
@node Rules |
2226 |
@section Syntax of Grammar Rules |
@section Syntax of Grammar Rules |