From dbbe5921d7fc1094e6a1380d1f031756c57e369d Mon Sep 17 00:00:00 2001
From: brettlangdon <brett@blangdon.com>
Date: Fri, 2 Oct 2015 11:16:26 -0400
Subject: [PATCH] Allow empty string values

---
 forge_test.go | 2 ++
 scanner.go    | 4 ++++
 test.cfg      | 1 +
 3 files changed, 7 insertions(+)

diff --git a/forge_test.go b/forge_test.go
index a7ad3e8..1d8a3a7 100644
--- a/forge_test.go
+++ b/forge_test.go
@@ -16,6 +16,7 @@ primary {
   string = "primary string value";
   string_with_quote = "some \"quoted\" str\\ing";
   single = 'hello world';
+  empty = '';
   single_with_quote = '\'hello\' "world"';
 
   # Semicolons are optional
@@ -70,6 +71,7 @@ func assertDirectives(values map[string]interface{}, t *testing.T) {
 	assertEqual(primary["string"], "primary string value", t)
 	assertEqual(primary["string_with_quote"], "some \"quoted\" str\\ing", t)
 	assertEqual(primary["single"], "hello world", t)
+	assertEqual(primary["empty"], "", t)
 	assertEqual(primary["single_with_quote"], "'hello' \"world\"", t)
 	assertEqual(primary["integer500"], int64(500), t)
 	assertEqual(primary["float"], float64(80.80), t)
diff --git a/scanner.go b/scanner.go
index 865c1ab..670b431 100644
--- a/scanner.go
+++ b/scanner.go
@@ -123,6 +123,10 @@ func (scanner *Scanner) parseNumber(negative bool) {
 func (scanner *Scanner) parseString(delimiter rune) {
 	scanner.curTok.ID = token.STRING
 	scanner.curTok.Literal = ""
+	if scanner.curCh == delimiter {
+		scanner.readRune()
+		return
+	}
 	// Whether or not we are trying to escape a character
 	escape := false
 
diff --git a/test.cfg b/test.cfg
index d9b6f78..1c6b94e 100644
--- a/test.cfg
+++ b/test.cfg
@@ -5,6 +5,7 @@ primary {
   string = "primary string value";
   string_with_quote = "some \"quoted\" str\\ing";
   single = 'hello world';
+  empty = '';
   single_with_quote = '\'hello\' "world"';
 
   # Semicolons are optional