initial parser

1 files changed, 17 insertions, 0 deletions

diff --git a/src/parser/generate.ts b/src/parser/generate.ts
new file mode 100644
index 0000000..977077a
--- /dev/null
+++ b/src/parser/generate.ts
@@ -0,0 +1,17 @@
+import peggy from 'peggy';
+const tspegjs: any = require('ts-pegjs');
+
+export const GRAMMAR_FILE = 'grammar.pegjs';
+export const GENERATED_PARSER = 'parser.ts';
+
+export const generateParser = async (file: string, output: string) => {
+  const grammar = await Bun.file(file).text();
+
+  const parserSrc = peggy.generate(grammar, {
+    format: 'commonjs',
+    plugins: [tspegjs],
+    output: 'source',
+  });
+
+  await Bun.write(output, parserSrc);
+};