feat: Add Raku grammar

.mega-linter.yaml

@@ -47,3 +47,4 @@ DISABLE_ERRORS_LINTERS:
   - PHP_PHPCSFIXER
 PHP_PHPCS_ARGUMENTS:
   - --standard=PSR12
+RAKU_RAKU_ARGUMENTS: -I ./grammars/raku/lib/

CHANGELOG.md

@@ -14,6 +14,8 @@
 
 **Integrations**:
 
+- Add grammar file for Raku. (@vanillajonathan, #5576)
+
 **Internal changes**:
 
 **New Contributors**:

grammars/README.md

@@ -70,6 +70,9 @@ an index.
   ([prql.py](https://github.com/pygments/pygments/blob/master/pygments/lexers/prql.py)).
   See the [demo](https://pygments.org/demo/).
 
+- [Raku](https://raku.org/) — Grammar can be found at
+  [`grammars/raku/`](https://github.com/PRQL/prql/tree/main/grammars/raku/).
+
 - [TEA](https://github.com/psemiletov/tea-qt/) — supported. The grammar is
   [upstream](https://github.com/psemiletov/tea-qt/blob/master/hls/prql.xml).
 

grammars/raku/META6.json

@@ -0,0 +1,20 @@
+{
+  "name": "PRQL",
+  "version": "0.0.1",
+  "description": "Grammar for PRQL",
+  "tags": ["data", "grammar", "pipeline", "sql"],
+  "source-url": "https://github.com/PRQL/prql/",
+  "support": {
+    "source": "https://github.com/PRQL/prql/",
+    "bugtracker": "https://github.com/PRQL/prql/issues"
+  },
+  "api": "1.0",
+  "production": false,
+  "auth": "github:PRQL",
+  "license": "Artistic-2.0",
+  "provides": {
+    "prql": "lib/prql.rakumod"
+  },
+  "raku": "6.*",
+  "meta-version": "1"
+}

grammars/raku/README.md

@@ -0,0 +1,36 @@
+# Raku grammar
+
+PRQL grammar for Raku.
+
+## Instructions
+
+```raku
+use lib '.';
+use prql;
+
+say PRQL.parse('from employees');
+say PRQL.parsefile('employees.prql');
+```
+
+## Installation
+
+To install from source run:
+
+    zef install .
+
+## Tests
+
+Tests can be run individually by specifying the test filename on the command
+line:
+
+    raku t/arithmetics.rakutest
+
+To run all tests in the directory you have to install `prove6` using `zef`:
+
+    zef install App::Prove6
+    prove6 --lib t/
+
+## Documentation
+
+- https://docs.raku.org/language/grammar_tutorial
+- https://docs.raku.org/language/grammars