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Added identifiers grammar #89

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Merged
merged 2 commits into from
Aug 14, 2017
Merged

Added identifiers grammar #89

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fcb3fd7
Added identifiers' grammar
brauliobz Jul 22, 2017
a917a93
Grammar of identifiers: correct link to keywords page
brauliobz Jul 25, 2017
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7 changes: 6 additions & 1 deletion src/identifiers.md
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Original file line number Diff line number Diff line change
@@ -1,5 +1,10 @@
# Identifiers

> **<sup>Lexer:<sup>**
> IDENTIFIER :
> &nbsp;&nbsp; &nbsp;&nbsp; XID_start XID_continue<sup>\*</sup>
> &nbsp;&nbsp; | `_` XID_continue<sup>+</sup>

An identifier is any nonempty Unicode[^non_ascii_idents] string of the following form:

Either
Expand All @@ -23,6 +28,6 @@ that does _not_ occur in the set of [keywords].

[`XID_start`]: http://unicode.org/cldr/utility/list-unicodeset.jsp?a=%5B%3AXID_Start%3A%5D&abb=on&g=&i=
[`XID_continue`]: http://unicode.org/cldr/utility/list-unicodeset.jsp?a=%5B%3AXID_Continue%3A%5D&abb=on&g=&i=
[keywords]: ../grammar.html#keywords
[keywords]: keywords.html
[^non_ascii_idents]: Non-ASCII characters in identifiers are currently feature
gated. This is expected to improve soon.