{
  "$schema": "https://raw.githubusercontent.com/martinring/tmlanguage/master/tmlanguage.json",
  "name": "Ludic",
  "scopeName": "source.ludic",
  "fileTypes": ["ludic"],
  "comment": "Static grammar for Ludic. It is the fallback: when ludic-lsp is running, its semantic tokens refine everything here with real name resolution. Generated shapes are kept in sync with tools/ludic-tools/ludic_syntax.h.",
  "patterns": [
    { "include": "#comment" },
    { "include": "#declaration" },
    { "include": "#query" },
    { "include": "#string" },
    { "include": "#number" },
    { "include": "#annotation" },
    { "include": "#keyword" },
    { "include": "#widget" },
    { "include": "#builtin" },
    { "include": "#member" },
    { "include": "#call" },
    { "include": "#typename" },
    { "include": "#operator" }
  ],
  "repository": {
    "comment": {
      "match": "#.*$",
      "name": "comment.line.number-sign.ludic"
    },
    "string": {
      "patterns": [
        {
          "name": "string.quoted.double.ludic",
          "begin": "\"",
          "end": "\"",
          "beginCaptures": { "0": { "name": "punctuation.definition.string.begin.ludic" } },
          "endCaptures": { "0": { "name": "punctuation.definition.string.end.ludic" } },
          "patterns": [{ "name": "constant.character.escape.ludic", "match": "\\\\." }]
        },
        {
          "name": "string.quoted.single.ludic",
          "match": "'(\\\\.|[^'\\\\])'"
        },
        {
          "name": "string.interpolated.ludic",
          "begin": "`",
          "end": "`",
          "beginCaptures": { "0": { "name": "punctuation.definition.string.begin.ludic" } },
          "endCaptures": { "0": { "name": "punctuation.definition.string.end.ludic" } },
          "patterns": [
            { "name": "meta.embedded.ludic", "begin": "\\{", "end": "\\}", "patterns": [{ "include": "$self" }] },
            { "name": "constant.character.escape.ludic", "match": "\\\\." }
          ]
        }
      ]
    },
    "number": {
      "patterns": [
        { "name": "constant.numeric.hex.ludic", "match": "\\b0[xX][0-9a-fA-F]+\\b" },
        { "name": "constant.numeric.fixed.ludic", "match": "\\b[0-9]+\\.[0-9]+\\b" },
        { "name": "constant.numeric.integer.ludic", "match": "\\b[0-9]+\\b" }
      ]
    },
    "annotation": {
      "name": "entity.name.function.decorator.ludic",
      "match": "@[A-Za-z_][A-Za-z0-9_]*"
    },
    "declaration": {
      "patterns": [
        {
          "match": "\\b(program)\\s+([A-Za-z_][A-Za-z0-9_]*)",
          "captures": {
            "1": { "name": "keyword.control.unit.ludic" },
            "2": { "name": "entity.name.type.unit.ludic" }
          }
        },
        {
          "match": "\\b(property)\\s+([A-Za-z_][A-Za-z0-9_]*)",
          "captures": {
            "1": { "name": "storage.type.component.ludic" },
            "2": { "name": "entity.name.type.component.ludic" }
          }
        },
        {
          "match": "\\b(model)\\s+([A-Za-z_][A-Za-z0-9_]*)",
          "captures": {
            "1": { "name": "storage.type.archetype.ludic" },
            "2": { "name": "entity.name.type.archetype.ludic" }
          }
        },
        {
          "match": "\\b(ui)\\s+([A-Za-z_][A-Za-z0-9_]*)",
          "captures": {
            "1": { "name": "storage.type.ludic" },
            "2": { "name": "entity.name.type.ludic" }
          }
        },
        {
          "match": "\\b(handler)\\s+([A-Za-z_][A-Za-z0-9_]*)",
          "captures": {
            "1": { "name": "storage.type.system.ludic" },
            "2": { "name": "entity.name.function.system.ludic" }
          }
        },
        {
          "match": "\\b(extern\\s+)?(fn)\\s+([A-Za-z_][A-Za-z0-9_]*)",
          "captures": {
            "1": { "name": "storage.modifier.extern.ludic" },
            "2": { "name": "storage.type.function.ludic" },
            "3": { "name": "entity.name.function.ludic" }
          }
        },
        {
          "match": "\\b(const|var|let)\\s+([A-Za-z_][A-Za-z0-9_]*)",
          "captures": {
            "1": { "name": "storage.type.ludic" },
            "2": { "name": "variable.other.definition.ludic" }
          }
        },
        {
          "match": "\\b(state)\\s+([A-Za-z_][A-Za-z0-9_]*)",
          "captures": {
            "1": { "name": "keyword.control.state.ludic" },
            "2": { "name": "entity.name.constant.state.ludic" }
          }
        },
        {
          "match": "\\b(import)\\s+(?=\")",
          "captures": { "1": { "name": "keyword.control.import.ludic" } }
        },
        {
          "match": "\\b(phase)\\s+(Start|Input|FixedUpdate|Update|LateUpdate|Render)\\b",
          "captures": {
            "1": { "name": "keyword.other.clause.ludic" },
            "2": { "name": "constant.language.phase.ludic" }
          }
        },
        {
          "match": "\\b(enter)\\s+([A-Za-z_][A-Za-z0-9_]*)",
          "captures": {
            "1": { "name": "keyword.control.enter.ludic" },
            "2": { "name": "entity.name.type.scene.ludic" }
          }
        },
        {
          "match": "\\b(spawn)\\s+([A-Za-z_][A-Za-z0-9_]*)",
          "captures": {
            "1": { "name": "keyword.control.spawn.ludic" },
            "2": { "name": "entity.name.type.archetype.ludic" }
          }
        }
      ]
    },
    "query": {
      "comment": "Inside a query's brackets a bare word names a component and {Word} is a filter that does not bind.",
      "begin": "\\b(query)\\s*(\\[)",
      "beginCaptures": {
        "1": { "name": "keyword.other.query.ludic" },
        "2": { "name": "punctuation.section.brackets.begin.ludic" }
      },
      "end": "(\\])",
      "endCaptures": { "1": { "name": "punctuation.section.brackets.end.ludic" } },
      "patterns": [
        {
          "match": "(\\{)\\s*([A-Za-z_][A-Za-z0-9_]*)\\s*(\\})",
          "captures": {
            "1": { "name": "punctuation.section.braces.begin.ludic" },
            "2": { "name": "entity.name.type.tag.ludic" },
            "3": { "name": "punctuation.section.braces.end.ludic" }
          }
        },
        { "name": "entity.name.type.component.ludic", "match": "\\b[A-Za-z_][A-Za-z0-9_]*\\b" },
        { "name": "punctuation.separator.ludic", "match": "," }
      ]
    },
    "keyword": {
      "patterns": [
        { "name": "keyword.control.ludic", "match": "\\b(if|else|while|for|in|match|machine|become|return|spawn|despawn|enable|disable|where|break|continue|new)\\b" },
        { "name": "keyword.operator.logical.ludic", "match": "\\b(and|or|not)\\b" },
        { "name": "keyword.other.clause.ludic", "match": "\\b(phase|query|on)\\b" },
        { "name": "keyword.other.ludic", "match": "\\b(import|extern)\\b" },
        { "name": "storage.type.ludic", "match": "\\b(program|property|model|enum|ui|const|var|let|fn|handler|entry|state)\\b" },
        { "name": "support.type.primitive.ludic", "match": "\\b(int|long|fixed|bool|entity|str|ptr|byte|words|fixeds|ptrs|void)\\b" },
        { "name": "constant.language.boolean.ludic", "match": "\\b(true|false|null)\\b" },
        { "name": "constant.language.phase.ludic", "match": "\\b(Start|Input|FixedUpdate|Update|LateUpdate|Render)\\b" }
      ]
    },
    "widget": {
      "patterns": [
        {
          "comment": "widget types, recognised by the props or the child block that follow them",
          "name": "support.class.widget.ludic",
          "match": "\\b(panel|col|row|label|button|image|spacer)\\b(?=\\s*(\\{|[a-z][A-Za-z0-9_]*\\s*=|$))"
        },
        {
          "comment": "widget props are written tight (id=Root); an assignment is written x = 1",
          "match": "\\b([a-z][A-Za-z0-9_]*)(=)(?!=)",
          "captures": {
            "1": { "name": "variable.parameter.widget.ludic" },
            "2": { "name": "keyword.operator.assignment.ludic" }
          }
        }
      ]
    },
    "builtin": {
      "patterns": [
        {
          "comment": "the runtime surface — every name here resolves to rt_<name> in runtime/native",
          "name": "support.function.builtin.ludic",
          "match": "\\b(min|max|abs|clamp|seed|rng_range|rng_chance|fx|flr|map_size|map_row|tile|clear|present|fill_rect|frame_rect|put_px|text|text_int|font_load|text_ttf|text_w|text_h|image_load|draw_image|draw_image_scaled|draw_9slice|png_load|sprites_load|draw_sprite|draw_sprite_scaled|ui_build|ui_open|ui_tick|ui_render|ui_clicked|ui_set_text|ui_set_int|ui_focus|ui_focused|ui_visible|key|reg|set_reg|self|save|load|status|print|str|quit)\\b(?=\\s*\\()"
        },
        {
          "comment": "compiler intrinsics — these lower straight to libc or the OS",
          "name": "support.function.intrinsic.ludic",
          "match": "\\b(bytes|words|resize|free|fill|offset|as_fixed|as_int|file_open|file_read|file_write|file_seek|file_tell|file_close|read_char|exit|arg_count|arg|file_stderr|file_stdout|is_windowed|game_title|win_open|win_poll|win_present|win_running|win_close)\\b(?=\\s*\\()"
        }
      ]
    },
    "member": {
      "match": "(\\.)([A-Za-z_][A-Za-z0-9_]*)",
      "captures": {
        "1": { "name": "punctuation.accessor.ludic" },
        "2": { "name": "variable.other.property.ludic" }
      }
    },
    "call": {
      "match": "\\b([A-Za-z_][A-Za-z0-9_]*)\\s*(?=\\()",
      "name": "entity.name.function.call.ludic"
    },
    "typename": {
      "comment": "components, archetypes, scenes and UI handles are Capitalised by convention",
      "name": "entity.name.type.ludic",
      "match": "\\b[A-Z][A-Za-z0-9_]*\\b"
    },
    "operator": {
      "patterns": [
        { "name": "keyword.operator.arrow.ludic", "match": "->|=>" },
        { "name": "keyword.operator.range.ludic", "match": "\\.\\." },
        { "name": "keyword.operator.bitwise.ludic", "match": "<<|>>|&|\\|\\^|~" },
        { "name": "keyword.operator.comparison.ludic", "match": "==|!=|<=|>=|<|>" },
        { "name": "keyword.operator.assignment.ludic", "match": "\\+=|-=|\\*=|/=|=" },
        { "name": "keyword.operator.arithmetic.ludic", "match": "[+\\-*/%]" }
      ]
    }
  }
}