From 764b0ad3c0342382ee3f20f702272c0b571e94ed Mon Sep 17 00:00:00 2001
From: Mitchell Hashimoto <mitchell.hashimoto@gmail.com>
Date: Fri, 10 Oct 2014 16:07:25 -0700
Subject: [PATCH] Allow escaping quotes in HCL string [GH-14]

---
 decoder_test.go          |  7 +++++++
 hcl/lex.go               | 13 +++++++++++++
 test-fixtures/escape.hcl |  1 +
 3 files changed, 21 insertions(+)
 create mode 100644 test-fixtures/escape.hcl

diff --git a/decoder_test.go b/decoder_test.go
index 7c7700b..ab19457 100644
--- a/decoder_test.go
+++ b/decoder_test.go
@@ -43,6 +43,13 @@ func TestDecode_interface(t *testing.T) {
 				},
 			},
 		},
+		{
+			"escape.hcl",
+			false,
+			map[string]interface{}{
+				"foo": "bar\"baz",
+			},
+		},
 		{
 			"multiline_bad.hcl",
 			false,
diff --git a/hcl/lex.go b/hcl/lex.go
index 23dd1b0..6dfa8fe 100644
--- a/hcl/lex.go
+++ b/hcl/lex.go
@@ -357,6 +357,19 @@ func (x *hclLex) lexString(yylval *hclSymType) int {
 			return lexEOF
 		}
 
+		// If we're escaping a quote, then escape the quote
+		if c == '\\' {
+			n := x.next()
+			switch n {
+			case '"':
+				c = n
+			case 'n':
+				c = '\n'
+			default:
+				x.backup()
+			}
+		}
+
 		// If we're starting into variable, mark it
 		if braces == 0 && c == '$' && x.peek() == '{' {
 			braces += 1
diff --git a/test-fixtures/escape.hcl b/test-fixtures/escape.hcl
new file mode 100644
index 0000000..7f9a566
--- /dev/null
+++ b/test-fixtures/escape.hcl
@@ -0,0 +1 @@
+foo = "bar\"baz"