add crowbarc-reference script

1 files changed, 26 insertions, 0 deletions

diff --git a/crowbar_reference_compiler/__init__.py b/crowbar_reference_compiler/__init__.py
index 02fcfc1..92b9497 100644
--- a/crowbar_reference_compiler/__init__.py
+++ b/crowbar_reference_compiler/__init__.py
@@ -1,3 +1,29 @@
 from .parser import parse_header, parse_implementation
 from .scanner import scan
 from .ssagen import compile_to_ssa
+
+
+def main():
+    import argparse
+
+    args = argparse.ArgumentParser(description='The reference compiler for the Crowbar programming language')
+    args.add_argument('-V', '--version', action='version', version='%(prog)s 0.0.2')
+    args.add_argument('-g', '--include-debug-info', action='store_true')
+    args.add_argument('-S', '--stop-at-assembly', action='store_true')
+    args.add_argument('-o', '--out', help='output file')
+    args.add_argument('input', help='input file')
+
+    args = args.parse_args()
+    if args.out is None:
+        args.out = args.input.replace('.cro', '.ssa')
+    with open(args.input, 'r', encoding='utf-8') as input_file:
+        input_code = input_file.read()
+    tokens = scan(input_code)
+    parse_tree = parse_implementation(tokens)
+    ssa = compile_to_ssa(parse_tree)
+    with open(args.out, 'w', encoding='utf-8') as output_file:
+        output_file.write(ssa)
+
+
+if __name__ == '__main__':
+    main()