From b6de8db464151fa1300c5a47e508e9e792d034d0 Mon Sep 17 00:00:00 2001
From: Shagun Agrawal <agrawalshagun07@gmail.com>
Date: Fri, 26 Jul 2024 00:03:57 +0530
Subject: Add cli options for pasing and codegen

Add cli options specific for only parsing and codegen

add logger for help in debugging
---
 src/cljcc/parser.clj | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'src/cljcc/parser.clj')

diff --git a/src/cljcc/parser.clj b/src/cljcc/parser.clj
index 860fcd5..a4d7492 100644
--- a/src/cljcc/parser.clj
+++ b/src/cljcc/parser.clj
@@ -11,7 +11,8 @@
    "<program> = function+
     function = #'int\\b' identifier <'('> #'void\\b' <')'> <'{'> statement <'}'>
     statement = #'return\\b' exp <';'>
-    exp = constant
+    exp = constant | unop exp | <'('> exp <')'>
+    unop = #'-\\b' | #'~\\b'
     identifier = #'[a-zA-Z_]\\w*\\b'
     constant = #'[0-9]+\\b'
     keyword = #'int\\b' | #'return\\b' | #'void\\b'"
-- 
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