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allow BOM only in the first unicode scalar in a document

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Kat Marchán 2023-12-12 22:51:52 -08:00
parent 13799de32b
commit 49402ccb7b
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2 changed files with 5 additions and 1 deletions
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2
CHANGELOG.md
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@ -53,6 +53,8 @@
* Between annotations and the thing they're annotating (`(blah) node (thing) * Between annotations and the thing they're annotating (`(blah) node (thing)
1 y= (who) 2`) 1 y= (who) 2`)
* Around `=` for props (`x = 1`) * Around `=` for props (`x = 1`)
* The BOM is now only allowed as the first character in a document. It was
previously treated as generic whitespace.
### KQL ### KQL

4
SPEC.md
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@ -516,6 +516,8 @@ authoritative if something seems to disagree with the text above. The [grammar
language syntax](#grammar-language) is defined below. language syntax](#grammar-language) is defined below.
``` ```
document := bom? nodes
nodes := (line-space* node)* line-space* nodes := (line-space* node)* line-space*
plain-line-space := newline | ws | single-line-comment plain-line-space := newline | ws | single-line-comment
@ -572,7 +574,7 @@ escline := '\\' ws* (single-line-comment | newline | eof)
newline := See Table (All line-break white_space) newline := See Table (All line-break white_space)
ws := bom | unicode-space | multi-line-comment ws := unicode-space | multi-line-comment
bom := '\u{FEFF}' bom := '\u{FEFF}'