From 7d42ad280f3920a9be42aa3d25422cf90d7e1207 Mon Sep 17 00:00:00 2001
From: Eryn Wells <eryn@erynwells.me>
Date: Tue, 27 Dec 2016 10:57:16 -0700
Subject: [PATCH] error_string method

---
 src/lexer/mod.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/lexer/mod.rs b/src/lexer/mod.rs
index 6d89cf2..b9f7ea2 100644
--- a/src/lexer/mod.rs
+++ b/src/lexer/mod.rs
@@ -97,6 +97,10 @@ impl Lexer {
     fn value(&self) -> String {
         self.input[self.begin .. self.forward].to_string()
     }
+
+    fn error_string(&self, message: &str) -> String {
+        format!("{}:{}: {}", self.line, self.line_offset, message)
+    }
 }
 
 impl Lexer {