Commit: runtime(graphql): Update syntax script to September 2025 spec

[Christian Brabandt]

runtime(graphql): Update syntax script to September 2025 spec

Commit: https://github.com/vim/vim/commit/16d28548d2d3c49733750b6ab7a50bc05ab65e0c
Author: Jon Parise <j...@indelible.org>
Date: Tue Apr 21 19:25:54 2026 +0000

runtime(graphql): Update syntax script to September 2025 spec

A new graphqlEscape syntax graph has been introduced to represent escape
sequences within strings, including the braced unicode form (\u{H+})
added in the September 2025 specification.

See: https://spec.graphql.org/September2025/

closes: #20030

Signed-off-by: Jon Parise <j...@indelible.org>
Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/runtime/syntax/graphql.vim b/runtime/syntax/graphql.vim
index 01d5ca25f..53ab1cc93 100644
--- a/runtime/syntax/graphql.vim
+++ b/runtime/syntax/graphql.vim
@@ -4,7 +4,7 @@
" Filenames: *.graphql *.graphqls *.gql
" URL: https://github.com/jparise/vim-graphql
" License: MIT <https://opensource.org/license/mit>
-" Last Change: 2024 Dec 21
+" Last Change: 2026 Apr 21

if !exists('main_syntax')
if exists('b:current_syntax')
@@ -26,8 +26,13 @@ syn match graphqlOperator "\M..." display
syn keyword graphqlBoolean true false
syn keyword graphqlNull null
syn match graphqlNumber "-\=\<\%(0\|[1-9]\d*\)\%(\.\d\+\)\=\%([eE][-+]\=\d\+\)\=\>" display
-syn region graphqlString start=+"+ skip=+\\\|\"+ end=+"\|$+
-syn region graphqlString start=+"""+ skip=+\"""+ end=+"""+
+syn region graphqlString start=+"+ skip=+\\\|\"+ end=+"\|$+ contains=graphqlEscape
+syn region graphqlString start=+"""+ skip=+\"""+ end=+"""+ contains=graphqlEscape
+
+syn match graphqlEscape +\["\/bfnrt]+ contained display
+syn match graphqlEscape +\u\x\{4}+ contained display
+syn match graphqlEscape +\u{\x\+}+ contained display
+syn match graphqlEscape +\""\"+ contained display

syn keyword graphqlKeyword repeatable nextgroup=graphqlKeyword skipwhite
syn keyword graphqlKeyword on nextgroup=graphqlType,graphqlDirectiveLocation skipwhite
@@ -45,11 +50,11 @@ syn match graphqlVariable "\<\$\h\w*\>" display
syn match graphqlName "\<\h\w*\>" display
syn match graphqlType "\<_*\u\w*\>" display

-" https://spec.graphql.org/October2021/#ExecutableDirectiveLocation
+" https://spec.graphql.org/September2025/#ExecutableDirectiveLocation
syn keyword graphqlDirectiveLocation QUERY MUTATION SUBSCRIPTION FIELD
syn keyword graphqlDirectiveLocation FRAGMENT_DEFINITION FRAGMENT_SPREAD
syn keyword graphqlDirectiveLocation INLINE_FRAGMENT VARIABLE_DEFINITION
-" https://spec.graphql.org/October2021/#TypeSystemDirectiveLocation
+" https://spec.graphql.org/September2025/#TypeSystemDirectiveLocation
syn keyword graphqlDirectiveLocation SCHEMA SCALAR OBJECT FIELD_DEFINITION
syn keyword graphqlDirectiveLocation ARGUMENT_DEFINITION INTERFACE UNION
syn keyword graphqlDirectiveLocation ENUM ENUM_VALUE INPUT_OBJECT
@@ -73,6 +78,7 @@ hi def link graphqlBoolean Boolean
hi def link graphqlNull Keyword
hi def link graphqlNumber Number
hi def link graphqlString String
+hi def link graphqlEscape Special

hi def link graphqlDirective PreProc
hi def link graphqlDirectiveLocation Special