2023-10-26 22:46:27 +00:00
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```text
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Document := Value ws
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2023-11-01 14:30:23 +00:00
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Value := ws (Record | Collection | Embedded | Annotated | Atom)
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2023-10-26 22:46:27 +00:00
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Collection := Sequence | Dictionary | Set
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Record := `<` Value+ ws `>`
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2023-11-01 13:13:36 +00:00
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Sequence := `[` (commas Value)* commas `]`
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Set := `#{` (commas Value)* commas `}`
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Dictionary := `{` (commas Value ws `:` Value)* commas `}`
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2023-11-01 14:30:23 +00:00
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commas := (ws `,`)* ws
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2023-10-26 22:46:27 +00:00
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2023-11-01 14:30:23 +00:00
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Embedded := `#!` Value
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Annotated := Annotation Value
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Annotation := `@` Value | `#` ((space | tab) linecomment) (cr | lf)
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Atom := Boolean | ByteString | String | QuotedSymbol | Symbol | Number
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2023-10-26 22:46:27 +00:00
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Boolean := `#t` | `#f`
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ByteString := `#"` binchar* `"`
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| `#x"` (ws hex hex)* ws `"`
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| `#[` (ws base64char)* ws `]`
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String := `"` («any unicode scalar except `\` or `"`» | escaped | `\"`)* `"`
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QuotedSymbol := `|` («any unicode scalar except `\` or `|`» | escaped | `\|`)* `|`
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Symbol := (`A`..`Z` | `a`..`z` | `0`..`9` | sympunct | symuchar)+
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2024-01-27 10:34:51 +00:00
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Number := Double | SignedInteger
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2023-10-26 22:46:27 +00:00
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Double := flt | `#xd"` (ws hex hex)8 ws `"`
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SignedInteger := int
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escaped := `\\` | `\/` | `\b` | `\f` | `\n` | `\r` | `\t` | `\u` hex hex hex hex
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binescaped := `\\` | `\/` | `\b` | `\f` | `\n` | `\r` | `\t` | `\x` hex hex
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binchar := «any scalar ≥32 and ≤126, except `\` or `"`» | binescaped | `\"`
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base64char := `A`..`Z` | `a`..`z` | `0`..`9` | `+` | `/` | `-` | `_` | `=`
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sympunct := `~` | `!` | `$` | `%` | `^` | `&` | `*` | `?`
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| `_` | `=` | `+` | `-` | `/` | `.`
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symuchar := «any scalar value ≥128 whose Unicode category is
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Lu, Ll, Lt, Lm, Lo, Mn, Mc, Me, Nd, Nl, No, Pc,
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Pd, Po, Sc, Sm, Sk, So, or Co»
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flt := int ( frac exp | frac | exp )
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int := (`-`|`+`) (`0`..`9`)+
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frac := `.` (`0`..`9`)+
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exp := (`e`|`E`) (`-`|`+`) (`0`..`9`)+
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hex := `A`..`F` | `a`..`f` | `0`..`9`
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2023-11-01 14:30:23 +00:00
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ws := (space | tab | cr | lf)*
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delimiter := ws | `<` | `>` | `[` | `]` | `{` | `}`
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| `#` | `:` | `"` | `|` | `@` | `;` | `,`
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linecomment := «any unicode scalar except cr or lf»*
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2023-10-26 22:46:27 +00:00
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```
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