2021-04-29 13:18:31 +01:00

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<?xml version="1.0" encoding="UTF-8"?>
<!--
This file is part of GtkSourceView
Author: Scott Martin <scott@coffeeblack.org>
Copyright (C) 2004 Scott Martin <scott@coffeeblack.org>
Copyright (C) 2005 Stef Walter (formerly Nate Nielsen) <stef@memberwebs.com>
Copyright (C) 2005-2007 Marco Barisione <barisione@gmail.com>
Copyright (C) 2005-2007 Emanuele Aina
Copyright (C) 2019-2020 Jeffery To <jeffery.to@gmail.com>
GtkSourceView is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
GtkSourceView is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this library; if not, see <http://www.gnu.org/licenses/>.
-->
<language id="js-expr" name="JavaScript Expressions" version="2.0" _section="Script" hidden="true">
<!-- from js:identifier-char -->
<keyword-char-class>(?!\x{2E2F})[\p{L}\p{Nl}\x{1885}-\x{1886}\x{2118}\x{212E}\x{309B}-\x{309C}\p{Mn}\p{Mc}\p{Nd}\p{Pc}\x{00B7}\x{0387}\x{1369}-\x{1371}\x{19DA}$\x{200C}\x{200D}]</keyword-char-class>
<definitions>
<!--
See javascript.lang for general notes, naming conventions, etc.
-->
<!--
Expression / context structure:
left-hand side (lhs) expression: Array ()
===== ==
/ \
primary post-primary
expression expression
expression: - obj.count + 1
= ========= ===
/ | \
pre-lhs lhs post-lhs
expression expression expression
-->
<!-- # "import" expression
import("module")
import.meta
-->
<!-- a consequence of this is that "import" by itself (when used as
a primary expression) will not be highlighted as an error -->
<!-- ES2020 -->
<!-- <ImportCall> (part of) -->
<context id="_choice-import-call-expression" end-parent="true">
<start>\(</start>
<end>\)</end>
<include>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context id="_import-call-expression-content">
<include>
<context ref="expression-without-comma"/>
</include>
</context> <!-- /_import-call-expression-content -->
</include>
</context> <!-- /_choice-import-call-expression -->
<!-- ES2020 -->
<!-- <ImportMeta> (part of) -->
<context id="_choice-import-meta-expression" end-parent="true">
<start>\.</start>
<end>\%{js:before-next-token}</end>
<include>
<context sub-pattern="0" where="start" style-ref="js:keyword"/>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context id="_import-meta-expression-content">
<include>
<context id="_import-meta-expression-keyword" style-ref="js:keyword" once-only="true">
<match>\%{js:meta-keyword}</match>
</context> <!-- /_import-meta-expression-keyword -->
</include>
</context> <!-- /_import-meta-expression-content -->
</include>
</context> <!-- /_choice-import-meta-expression -->
<context id="_choice-import-expression" end-parent="true">
<start>\%{js:import-keyword}</start>
<end>\%{js:before-next-token}</end>
<include>
<context sub-pattern="0" where="start" style-ref="js:keyword"/>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context id="_import-expression-content">
<include>
<context ref="_choice-import-call-expression"/>
<context ref="_choice-import-meta-expression"/>
</include>
</context> <!-- /_import-expression-content -->
</include>
</context> <!-- /_choice-import-expression -->
<!-- # "new" expression
new Array()
new.target
-->
<!-- <NewTarget> (part of) -->
<context id="_choice-new-target-expression" end-parent="true">
<start>\.</start>
<end>\%{js:before-next-token}</end>
<include>
<context sub-pattern="0" where="start" style-ref="js:keyword"/>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context id="_new-target-expression-content">
<include>
<context id="_new-target-expression-keyword" style-ref="js:keyword" once-only="true">
<match>\%{js:target-keyword}</match>
</context> <!-- /_new-target-expression-keyword -->
</include>
</context> <!-- /_new-target-expression-content -->
</include>
</context> <!-- /_choice-new-target-expression -->
<context id="_choice-new-object-expression" end-parent="true">
<start>\%{js:before-next-token}</start>
<end>\%{js:before-next-token}</end>
<include>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context id="_new-object-expression-content">
<include>
<context ref="_primary-expression"/>
</include>
</context> <!-- /_new-object-expression-content -->
</include>
</context> <!-- /_choice-new-object-expression -->
<context id="_choice-new-expression" end-parent="true">
<start>\%{js:new-keyword}</start>
<end>\%{js:before-next-token}</end>
<include>
<context sub-pattern="0" where="start" style-ref="js:keyword"/>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context id="_new-expression-content">
<include>
<context ref="_choice-new-target-expression"/>
<context ref="_choice-new-object-expression"/>
</include>
</context> <!-- /_new-expression-content -->
</include>
</context> <!-- /_choice-new-expression -->
<!-- # Grouping / arrow function parameters
(2 + 3) * 4
(x, y) => x + y
(x, ...rest) => { return rest; }
-->
<!-- doing it this way, instead of using expression-with-comma,
will make later augmentation easier -->
<context id="_grouping-item-content">
<include>
<context ref="js:ordered-rest-syntax"/>
<context ref="expression-without-comma"/>
</include>
</context> <!-- /_grouping-item-content -->
<!-- <CoverParenthesizedExpressionAndArrowParameterList> -->
<context id="_choice-grouping" style-ref="js:grouping" end-parent="true">
<start>\(</start>
<end>\)</end>
<include>
<context sub-pattern="0" where="start" style-ref="js:grouping-operator"/>
<context sub-pattern="0" where="end" style-ref="js:grouping-operator"/>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context id="_grouping-content">
<include>
<context id="_grouping-first-item" once-only="true">
<start>\%{js:before-next-token}</start>
<end>\%{js:before-next-token}</end>
<include>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context ref="_grouping-item-content"/>
</include>
</context> <!-- /_grouping-first-item -->
<context id="_grouping-items">
<start>,</start>
<end>\%{js:before-next-token}</end>
<include>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context ref="_grouping-item-content"/>
</include>
</context> <!-- /_grouping-items -->
</include>
</context> <!-- /_grouping-content -->
</include>
</context> <!-- /_choice-grouping -->
<!-- # Primary expression
this
Array
'string'
100
( ... )
[ 1, 2, 3 ]
function () { ... }
/regex/
`template`
-->
<!-- <PrimaryExpression> -->
<context id="_primary-expression" once-only="true">
<start>\%{js:before-next-token}</start>
<end>\%{js:before-next-token}</end>
<include>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context id="_primary-expression-content">
<include>
<context ref="js-lit:choice-array-literal"/>
<context ref="js-lit:choice-object-literal"/>
<context ref="js-lit:choice-regular-expression-literal"/>
<context ref="js-lit:choice-template-literal"/>
<context ref="js-fn:choice-function-expression"/>
<context ref="js-fn:choice-class-expression"/>
<context ref="_choice-import-expression"/>
<context ref="_choice-new-expression"/>
<context ref="_choice-grouping"/>
<context ref="js-lit:choice-number"/>
<context ref="js-lit:choice-string"/>
<context id="_choice-primary-expression-identifier" end-parent="true">
<start>\%{js:identifier-container-start}</start>
<end>\%{def:always-match}</end>
<include>
<!-- no embedded-lang-hooks here -->
<!-- no comments here -->
<!-- do not extend the context by matching comments or
embedded-lang-hooks, which may lead to multiple
identifiers -->
<context id="_primary-expression-identifier-content">
<include>
<!-- technically these would be choices, but it
would be very difficult to turn large keyword
contexts into container contexts with
end-parent="true" -->
<context ref="js-lit:null-value"/>
<context ref="js-lit:boolean"/>
<context ref="js-val:global-values"/>
<context ref="js:identifier"/>
</include>
</context> <!-- /_primary-expression-identifier-content -->
</include>
</context> <!-- /_choice-primary-expression-identifier -->
</include>
</context> <!-- /_primary-expression-content -->
</include>
</context> <!-- /_primary-expression -->
<context id="_ordered-primary-expression" once-only="true">
<start>\%{js:before-next-token}</start>
<end>\%{js:before-next-token}</end>
<include>
<context ref="_primary-expression"/>
</include>
</context> <!-- /_ordered-primary-expression -->
<!-- # Function call
(in an expression, function arguments list after primary
value)
fn()
fn(a, b, ...list)
-->
<context id="_function-arguments-content">
<include>
<context ref="js:ordered-spread-syntax"/>
<context ref="expression-without-comma"/>
</include>
</context> <!-- /_function-arguments-content -->
<!-- <Arguments> -->
<context id="_function-arguments-lists">
<start>\(</start>
<end>\)</end>
<include>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context id="_function-arguments-list-content">
<include>
<context id="_function-first-argument" once-only="true">
<start>\%{js:before-next-token}</start>
<end>\%{js:before-next-token}</end>
<include>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context ref="_function-arguments-content"/>
</include>
</context> <!-- /_function-first-argument -->
<context id="_function-arguments">
<start>,</start>
<end>\%{js:before-next-token}</end>
<include>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context ref="_function-arguments-content"/>
</include>
</context> <!-- /_function-arguments -->
</include>
</context> <!-- /_function-arguments-list-content -->
</include>
</context> <!-- /_function-arguments-lists -->
<!-- # Post-primary expression
obj.property
obj['property']
fn()
tag`template`
obj?.property
obj?.[expr]
func?.()
-->
<context id="_choice-property-identifier" end-parent="true">
<start>\%{js:identifier-container-start}</start>
<end>\%{def:always-match}</end>
<include>
<!-- no embedded-lang-hooks here -->
<!-- no comments here -->
<!-- do not extend the context by matching comments or
embedded-lang-hooks, which may lead to multiple
identifiers -->
<context id="_property-identifier-content">
<include>
<!-- technically these would be choices, but it would be
very difficult to turn large keyword contexts into
container contexts with end-parent="true" -->
<context ref="js-val:properties-methods"/>
<context ref="js:identifier-name"/>
</include>
</context> <!-- /_property-identifier-content -->
</include>
</context> <!-- /_choice-property-identifier -->
<context id="_post-primary-expression">
<include>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<!-- <MemberExpression> (part of) -->
<context id="_dot-property-accessors">
<start>\.(?!\.)</start> <!-- avoid matching rest/spread syntax -->
<end>\%{js:before-next-token}</end>
<include>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context id="_dot-property-accessor-content">
<include>
<context ref="_choice-property-identifier"/>
</include>
</context> <!-- /_dot-property-accessor-content -->
</include>
</context> <!-- /_dot-property-accessors -->
<!-- <MemberExpression> (part of) -->
<context id="_bracket-property-accessors">
<start>\[</start>
<end>]</end>
<include>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context id="_bracket-property-accessor-content">
<include>
<context ref="expression-with-comma"/>
</include>
</context> <!-- /_bracket-property-accessor-content -->
</include>
</context> <!-- /_bracket-property-accessors -->
<!-- ES2020 -->
<!-- <OptionalChain> (part of) -->
<context id="_optional-chains">
<start>\?\.(?![0-9])</start>
<end>\%{js:before-next-token}</end>
<include>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context id="_optional-chain-content">
<include>
<!-- only match dot-property accessor content here
this context will end early for other cases
-->
<context ref="_choice-property-identifier"/>
</include>
</context> <!-- /_optional-chain-content -->
</include>
</context> <!-- /_optional-chains -->
<context ref="_function-arguments-lists"/>
<context ref="js-lit:template-literals"/>
</include>
</context> <!-- /_post-primary-expression -->
<context id="_ordered-post-primary-expression" once-only="true">
<start>\%{js:before-next-token}</start>
<end>\%{js:before-next-token}</end>
<include>
<context ref="_post-primary-expression"/>
</include>
</context> <!-- /_ordered-post-primary-expression -->
<!-- # Increment / decrement operators -->
<!-- shared between pre- and post-lhs expressions -->
<context id="_increment-decrement-operators" style-ref="js:increment-decrement-operator">
<match>\+\+|--</match>
</context> <!-- /_increment-decrement-operators -->
<!-- # Pre-LHS expression -->
<context id="_pre-lhs-expression">
<include>
<context ref="js:embedded-lang-hooks"/>
<context ref="_increment-decrement-operators"/>
<!-- ES2017, cannot be followed by line terminator -->
<context id="_async-keywords" style-ref="js:keyword">
<match extended="true">
\%{js:async-keyword}
# preceeds arrow function
(?=
\%{js:optional-whitespace-or-comments}
(?:
\%{js:identifier} \%{js:optional-whitespace-or-comments} =&gt; |
\( # can this be better?
)
)
# does not preceed "function" (leave to function expression)
(?! \%{js:optional-whitespace-or-comments} \%{js:function-keyword} )
</match>
</context> <!-- /_async-keywords -->
<!-- await: ES2017 -->
<context id="_keyword-unary-operators" style-ref="js:keyword">
<match extended="true">
\%{js:await-keyword} |
\%{js:delete-keyword} |
\%{js:typeof-keyword} |
\%{js:void-keyword} |
\%{js:yield-keyword}
</match>
</context> <!-- /_keyword-unary-operators -->
<context ref="js:generator-modifier"/> <!-- for yield* -->
<context id="_unary-operators" style-ref="js:unary-operator">
<match extended="true">
\+ | # unary plus
- | # unary negation
~ | # bitwise not
! # logical not
</match>
</context> <!-- /_unary-operators -->
</include>
</context> <!-- /_pre-lhs-expression -->
<context id="_ordered-pre-lhs-expression" once-only="true">
<start>\%{js:before-next-token}</start>
<end>\%{js:before-next-token}</end>
<include>
<context ref="_pre-lhs-expression"/>
</include>
</context> <!-- /_ordered-pre-lhs-expression -->
<!-- # Left-hand side expression
this
new Array
'string'.length
fn.apply()
list[1]
tag`template`
-->
<define-regex id="_expression-start" extended="true">
(?= \%{js:not-whitespace} )
(?= [^:;\])}] )
(?! /[/*] )
</define-regex> <!-- /_expression-start -->
<!-- <LeftHandSideExpression> -->
<context id="lhs-expression" style-ref="js:expression" once-only="true">
<start>\%{_expression-start}</start>
<end>\%{js:before-next-token}</end>
<include>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context id="_lhs-expression-content">
<include>
<context ref="_ordered-primary-expression"/>
<context ref="_ordered-post-primary-expression"/>
</include>
</context> <!-- /_lhs-expression-content -->
</include>
</context> <!-- /lhs-expression -->
<!-- # Ternary operator -->
<context id="_choice-ternary-operator-missing-true-expression" end-parent="true">
<start>(?=:)</start>
<end>\%{def:always-match}</end>
</context> <!-- /_choice-ternary-operator-missing-true-expression -->
<!-- ## Without comma -->
<context id="_ternary-operator-without-comma-false-expression" once-only="true">
<start>:</start>
<end>\%{js:before-next-token}</end>
<include>
<context sub-pattern="0" where="start" style-ref="js:ternary-operator"/>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context id="_ternary-operator-without-comma-false-expression-content">
<include>
<context ref="expression-without-comma"/>
</include>
</context> <!-- /_ternary-operator-without-comma-false-expression-content -->
</include>
</context> <!-- /_ternary-operator-without-comma-false-expression -->
<context id="_choice-ternary-operator-without-comma-true-expression" end-parent="true">
<start>\%{js:before-next-token}</start>
<end>\%{js:before-next-token}</end>
<include>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context id="_ternary-operator-without-comma-true-expression-content">
<include>
<context ref="expression-without-comma"/>
<context ref="_ternary-operator-without-comma-false-expression"/>
</include>
</context> <!-- /_ternary-operator-without-comma-true-expression-content -->
</include>
</context> <!-- /_choice-ternary-operator-without-comma-true-expression -->
<context id="_ternary-operators-without-comma">
<start>\?</start>
<end>\%{js:before-next-token}</end>
<include>
<context sub-pattern="0" where="start" style-ref="js:ternary-operator"/>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context id="_ternary-operator-without-comma-content">
<include>
<context ref="_choice-ternary-operator-missing-true-expression"/>
<context ref="_choice-ternary-operator-without-comma-true-expression"/>
</include>
</context> <!-- /_ternary-operator-without-comma-content -->
</include>
</context> <!-- /_ternary-operators-without-comma -->
<!-- ## With comma -->
<context id="_ternary-operator-with-comma-false-expression" once-only="true">
<start>:</start>
<end>\%{js:before-next-token}</end>
<include>
<context sub-pattern="0" where="start" style-ref="js:ternary-operator"/>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context id="_ternary-operator-with-comma-false-expression-content">
<include>
<context ref="expression-with-comma"/>
</include>
</context> <!-- /_ternary-operator-with-comma-false-expression-content -->
</include>
</context> <!-- /_ternary-operator-with-comma-false-expression -->
<context id="_choice-ternary-operator-with-comma-true-expression" end-parent="true">
<start>\%{js:before-next-token}</start>
<end>\%{js:before-next-token}</end>
<include>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context id="_ternary-operator-with-comma-true-expression-content">
<include>
<context ref="expression-without-comma"/> <!-- comma not allowed -->
<context ref="_ternary-operator-with-comma-false-expression"/>
</include>
</context> <!-- /_ternary-operator-with-comma-true-expression-content -->
</include>
</context> <!-- /_choice-ternary-operator-with-comma-true-expression -->
<context id="_ternary-operators-with-comma">
<start>\?</start>
<end>\%{js:before-next-token}</end>
<include>
<context sub-pattern="0" where="start" style-ref="js:ternary-operator"/>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context id="_ternary-operator-with-comma-content">
<include>
<context ref="_choice-ternary-operator-missing-true-expression"/>
<context ref="_choice-ternary-operator-with-comma-true-expression"/>
</include>
</context> <!-- /_ternary-operator-with-comma-content -->
</include>
</context> <!-- /_ternary-operators-with-comma -->
<!-- # Binary operators -->
<define-regex id="_keyword-binary-operator" extended="true">
\%{js:instanceof-keyword} | \%{js:in-keyword}
</define-regex> <!-- /_keyword-binary-operator -->
<!-- excluding comma operator -->
<define-regex id="_binary-operator" extended="true">
\*\* =? | # exponentiation (assignment) (ES2016)
[+/*%-] =? | # arithmetic (assignment)
[!=]==? | # equality
&amp;&amp; | \|\| | # logical
\?\? | # nullish coalescing (ES2020)
[&amp;|^] =? | # bitwise logical (assignment)
(?: &lt;&lt; | &gt;&gt;&gt;? ) =? | # bitwise shift (assignment)
[&lt;&gt;]=? | # relational
= # assignment
</define-regex> <!-- /_binary-operator -->
<!-- ## Without comma -->
<context id="_keyword-binary-operators-without-comma">
<start>\%{_keyword-binary-operator}</start>
<end>\%{js:before-next-token}</end>
<include>
<context sub-pattern="0" where="start" style-ref="js:keyword"/>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context id="_keyword-binary-operator-without-comma-content">
<include>
<context ref="expression-without-comma"/>
</include>
</context> <!-- /_keyword-binary-operator-without-comma-content -->
</include>
</context> <!-- /_keyword-binary-operators-without-comma -->
<context id="_binary-operators-without-comma">
<start>\%{_binary-operator}</start>
<end>\%{js:before-next-token}</end>
<include>
<context sub-pattern="0" where="start" style-ref="js:binary-operator"/>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context id="_binary-operator-without-comma-content">
<include>
<context ref="expression-without-comma"/>
</include>
</context> <!-- /_binary-operator-without-comma-content -->
</include>
</context> <!-- /_binary-operators-without-comma -->
<!-- ## With comma -->
<context id="_keyword-binary-operators-with-comma">
<start>\%{_keyword-binary-operator}</start>
<end>\%{js:before-next-token}</end>
<include>
<context sub-pattern="0" where="start" style-ref="js:keyword"/>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context id="_keyword-binary-operator-with-comma-content">
<include>
<context ref="expression-with-comma"/>
</include>
</context> <!-- /_keyword-binary-operator-with-comma-content -->
</include>
</context> <!-- /_keyword-binary-operators-with-comma -->
<context id="_binary-operators-with-comma">
<start>\%{_binary-operator}|,</start>
<end>\%{js:before-next-token}</end>
<include>
<context sub-pattern="0" where="start" style-ref="js:binary-operator"/>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context id="_binary-operator-with-comma-content">
<include>
<context ref="expression-with-comma"/>
</include>
</context> <!-- /_binary-operator-with-comma-content -->
</include>
</context> <!-- /_binary-operators-with-comma -->
<!-- # Post-LHS expression -->
<!-- ## Without comma -->
<context id="_post-lhs-expression-without-comma">
<include>
<context ref="js:embedded-lang-hooks"/>
<context ref="_increment-decrement-operators"/>
<context ref="js-fn:arrow-functions"/>
<context ref="_keyword-binary-operators-without-comma"/>
<context ref="_binary-operators-without-comma"/>
<context ref="_ternary-operators-without-comma"/>
</include>
</context> <!-- /_post-lhs-expression-without-comma -->
<context id="_ordered-post-lhs-expression-without-comma" once-only="true">
<start>\%{js:before-next-token}</start>
<end>\%{js:before-next-token}</end>
<include>
<context ref="_post-lhs-expression-without-comma"/>
</include>
</context> <!-- /_ordered-post-lhs-expression-without-comma -->
<!-- ## With comma -->
<context id="_post-lhs-expression-with-comma">
<include>
<context ref="js:embedded-lang-hooks"/>
<context ref="_increment-decrement-operators"/>
<context ref="js-fn:arrow-functions"/>
<context ref="_keyword-binary-operators-with-comma"/>
<context ref="_binary-operators-with-comma"/>
<context ref="_ternary-operators-with-comma"/>
</include>
</context> <!-- /_post-lhs-expression-with-comma -->
<context id="_ordered-post-lhs-expression-with-comma" once-only="true">
<start>\%{js:before-next-token}</start>
<end>\%{js:before-next-token}</end>
<include>
<context ref="_post-lhs-expression-with-comma"/>
</include>
</context> <!-- /_ordered-post-lhs-expression-with-comma -->
<!-- # Expression
2 + 3 - 1
true ? doThis() : doThat()
-->
<!-- ## Without comma -->
<context id="_expression-without-comma-content">
<include>
<context ref="_ordered-pre-lhs-expression"/>
<context ref="_lhs-expression-content"/>
<context ref="_ordered-post-lhs-expression-without-comma"/>
</include>
</context> <!-- /_expression-without-comma-content -->
<!-- <AssignmentExpression> -->
<context id="expression-without-comma" style-ref="js:expression" once-only="true">
<start>\%{_expression-start}(?!,)</start>
<end>\%{js:before-next-token}</end>
<include>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context ref="_expression-without-comma-content"/>
</include>
</context> <!-- /expression-without-comma -->
<!-- <AssignmentExpression> -->
<context id="choice-expression-without-comma" style-ref="js:expression" end-parent="true">
<start>\%{_expression-start}(?!,)</start>
<end>\%{js:before-next-token}</end>
<include>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context ref="_expression-without-comma-content"/>
</include>
</context> <!-- /choice-expression-without-comma -->
<!-- ## With comma -->
<context id="_expression-with-comma-content">
<include>
<context ref="_ordered-pre-lhs-expression"/>
<context ref="_lhs-expression-content"/>
<context ref="_ordered-post-lhs-expression-with-comma"/>
</include>
</context> <!-- /_expression-with-comma-content -->
<!-- <Expression> -->
<context id="expression-with-comma" style-ref="js:expression" once-only="true">
<start>\%{_expression-start}</start>
<end>\%{js:before-next-token}</end>
<include>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context ref="_expression-with-comma-content"/>
</include>
</context> <!-- /expression-with-comma -->
<!-- <Expression> -->
<context id="choice-expression-with-comma" style-ref="js:expression" end-parent="true">
<start>\%{_expression-start}</start>
<end>\%{js:before-next-token}</end>
<include>
<context ref="js:embedded-lang-hooks"/>
<context ref="js:comments"/>
<context ref="_expression-with-comma-content"/>
</include>
</context> <!-- /choice-expression-with-comma -->
</definitions>
</language>