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doc: resolve inconsistency in banned chars in escaped form 

Also add it explicitly to the spec grammar to make it clear that escaped forms are also affected
This commit is contained in:
eugenesvk 2024-12-23 21:38:19 +07:00
parent c930f1d124
commit 52a95a6420
1 changed files with 7 additions and 2 deletions
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9
SPEC.md
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@ -819,7 +819,8 @@ considered _a single newline_.
### Disallowed Literal Code Points
The following code points may not appear literally anywhere in the document.
They may be represented in Strings (but not Raw Strings) using [Unicode Escapes](#escapes) (`\u{...}`).
They may be represented in Strings (but not Raw Strings) using [Unicode Escapes](#escapes) (`\u{...}`,
except for non Unicode Scalar Value, which can't be represented even as escapes).
* The codepoints `U+0000-0008` or the codepoints `U+000E-001F` (various
control characters).
@ -876,9 +877,13 @@ disallowed-keyword-identifiers := 'true' | 'false' | 'null' | 'inf' | '-inf' | '
quoted-string := '"' single-line-string-body '"' | '"""' newline multi-line-string-body newline (unicode-space | ws-escape)* '"""'
single-line-string-body := (string-character - newline)*
multi-line-string-body := (('"' | '""')? string-character)*
string-character := '\\' (["\\bfnrts] | 'u{' hex-digit{1, 6} '}') | ws-escape | [^\\"] - disallowed-literal-code-points
string-character := '\\' (["\\bfnrts] | 'u{' hex-unicode '}') | ws-escape | [^\\"] - disallowed-literal-code-points
ws-escape := '\\' (unicode-space | newline)+
hex-digit := [0-9a-fA-F]
hex-unicode := hex-digit{1, 6} - surrogates
surrogates := [dD][8-9a-fA-F]hex-digit{2}
// U+D800-DFFF: D 8 00
// D F FF
raw-string := '#' raw-string-quotes '#' | '#' raw-string '#'
raw-string-quotes := '"' single-line-raw-string-body '"' | '"""' newline multi-line-raw-string-body newline unicode-space* '"""'