From 220bfe283bb90fde649d2a6de98b528c30b42ccc Mon Sep 17 00:00:00 2001
From: sam bacha <sam@manifoldfinance.com>
Date: Fri, 5 May 2023 22:10:20 -0700
Subject: [PATCH] feat: grammar.g4

initial grammar outline
---
 grammar.g4 | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 grammar.g4

diff --git a/grammar.g4 b/grammar.g4
new file mode 100644
index 0000000..21fb1fa
--- /dev/null
+++ b/grammar.g4
@@ -0,0 +1,43 @@
+issues : '[' issue (',' issue)* ']'
+issue  : '{' swc ',' severity, ',' description ',' locations '}'
+
+swc    : '{'     'SWC-ID' ':'  STRING
+          ( ','  'SWC-title:' STRING ) ?
+          ( ',', 'SWC-description:' STRING ) ?
+         '}'
+	 
+severity : [0-4]
+         | 'informational'
+	 | 'warning' 
+	 | 'error'
+	 | 'fatal'
+
+description : 'description:' string
+            | 'description-lead': string ( ',' 'description-rest' ) ?
+
+locations : srcmap
+          | offsets
+          | ids
+          | line_column_length_files  
+
+offsets : 'offset:' '[' offset (',' offset ) * ']'
+        | 'offset:' offset
+
+offset : NUMBER
+
+ids : 'id:' '[' id (',' id ) * ']'
+    | 'id:' id
+
+id: NUMBER
+
+line_column_lengths_files : '[' line_column_length_file (',' line_column_length_file ) * ']'
+                          | line_column_length_file
+
+line_column_length_file  : 'line:' NUMBER
+                          ( ',' 'column:' NUMBER ) ?
+  			  ( ',' 'length:' NUMBER ) ?
+			    ',' 'filename:' string )
+
+
+STRING: '"" ~('"')+ '"'
+NUMBER [0-9]+