[css-selectors] Error in the defintion of V in the lexical scanner section?

[KommuSoft]

On the Lexical Scanner section of the documentation on the Selectors Level 3, the lexer defines V as:

V         v|\\0{0,4}(58|78)(\r\n|[ \t\r\n\f])?|\\v

I'm wondering why it uses 58 or 78. Based on the other items, this is to specify the character in its hexadecimal form, but the hexadecimal form of the ASCII V is 0x56 (or 0x76 for lowercase), not 0x58 (this is the ASCII code for X). Therefore shouldn't V be defined as:

V         v|\\0{0,4}(56|76)(\r\n|[ \t\r\n\f])?|\\v

or am I missing something?

[tabatkins]

Likely, but the grammar section of Selectors has been completely replaced in later levels and probably isn't worth maintaining; we no longer define our grammars in that form. Instead they're defined with the Rule Definition Syntax from the Syntax spec, like https://drafts.csswg.org/selectors/#grammar

Out of curiosity, why are you looking at Selectors 3?

[KommuSoft]

Out of curiosity, why are you looking at Selectors 3?

@tabatkins : I made a parser that validates a css-selectors-3 at compile time: https://github.com/hapytex/css-selectors
In the future I will try to support selectors-4, etc.