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Fixes #6824 - Correct scan_number() grammar

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Show `int_suffix_size` to appear 0 or 1 times
Show `exponent | . dec_lit` to appear 0 or 1 times, to show why `3f;` is a valid number
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Caitlin Potter 2013-05-30 00:40:43 -04:00
parent 2d28d64542
commit bfe141c4e1
1 changed files with 2 additions and 2 deletions
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@ -301,10 +301,10 @@ num_lit : nonzero_dec [ dec_digit | '_' ] * num_suffix ?
num_suffix : int_suffix | float_suffix ;
int_suffix : 'u' int_suffix_size ?
| 'i' int_suffix_size ;
| 'i' int_suffix_size ? ;
int_suffix_size : [ '8' | '1' '6' | '3' '2' | '6' '4' ] ;
float_suffix : [ exponent | '.' dec_lit exponent ? ] float_suffix_ty ? ;
float_suffix : [ exponent | '.' dec_lit exponent ? ] ? float_suffix_ty ? ;
float_suffix_ty : 'f' [ '3' '2' | '6' '4' ] ;
exponent : ['E' | 'e'] ['-' | '+' ] ? dec_lit ;
dec_lit : [ dec_digit | '_' ] + ;