1 files changed, 57 insertions, 0 deletions
diff --git a/lib9p/protogen/__init__.py b/lib9p/protogen/__init__.py
new file mode 100644
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+++ b/lib9p/protogen/__init__.py
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+# lib9p/protogen/__init__.py - Generate C marshalers/unmarshalers for
+#                              .9p files defining 9P protocol variants
+#
+# Copyright (C) 2024-2025  Luke T. Shumaker <lukeshu@lukeshu.com>
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
+import os.path
+import sys
+import typing
+
+import idl
+
+from . import c, h
+
+# pylint: disable=unused-variable
+__all__ = ["main"]
+
+
+def main() -> None:
+    if typing.TYPE_CHECKING:
+
+        class ANSIColors:
+            MAGENTA = "\x1b[35m"
+            RED = "\x1b[31m"
+            RESET = "\x1b[0m"
+
+    else:
+        from _colorize import ANSIColors  # Present in Python 3.13+
+
+    if len(sys.argv) < 2:
+        raise ValueError("requires at least 1 .9p filename")
+    parser = idl.Parser()
+    for txtname in sys.argv[1:]:
+        try:
+            parser.parse_file(txtname)
+        except SyntaxError as e:
+            print(
+                f"{ANSIColors.RED}{e.filename}{ANSIColors.RESET}:{ANSIColors.MAGENTA}{e.lineno}{ANSIColors.RESET}: {e.msg}",
+                file=sys.stderr,
+            )
+            assert e.text
+            print(f"\t{e.text}", file=sys.stderr)
+            text_suffix = e.text.lstrip()
+            text_prefix = e.text[: -len(text_suffix)]
+            print(
+                f"\t{text_prefix}{ANSIColors.RED}{'~'*len(text_suffix)}{ANSIColors.RESET}",
+                file=sys.stderr,
+            )
+            sys.exit(2)
+    versions, typs = parser.all()
+    outdir = os.path.normpath(os.path.join(sys.argv[0], ".."))
+    with open(
+        os.path.join(outdir, "include/lib9p/9p.generated.h"), "w", encoding="utf-8"
+    ) as fh:
+        fh.write(h.gen_h(versions, typs))
+    with open(os.path.join(outdir, "9p.generated.c"), "w", encoding="utf-8") as fh:
+        fh.write(c.gen_c(versions, typs))