Lua + GLSL syntax highlighting, for Sublime Text 4

Lua-glsl.sublime-syntax

%YAML 1.2
---
name: Lua-glsl
scope: source.lua
extends: Packages/Lua/Lua.sublime-syntax
version: 2

file_extensions:
  - lua

# Lua with GLSL syntax highlighting within multi-line strings, intended for LÖVR 

# to use, start a GLSL block with [[//glsl. for example:

#    local depthShader = lovr.graphics.newShader('unlit', [[//glsl
#      vec4 lovrmain() {
#        float d = clamp(1-distance(CameraPositionWorld, PositionWorld)/20, .1, 1);
#        return Color * vec4(d,d,d,1);
#      }
#    ]])

contexts:

  string:
    - include: single-quoted-string
    - include: double-quoted-string
    - include: multiline-string-glsl
    - include: multiline-string

  multiline-string-glsl:
    - match: '(?i)(\[\[ ?/?/?\*? ?GLSL ?\*?/?)'
      scope: punctuation.definition.string.begin.lua

      embed: scope:source.glsl
      embed_scope: source.glsl.embedded

      escape: \]\]
      escape_captures:
        0: punctuation.definition.string.end.lua