From 256bb51ed8e806e2edbf485525bf4180f0ecfa07 Mon Sep 17 00:00:00 2001
From: Mitchell Hashimoto <mitchell.hashimoto@gmail.com>
Date: Wed, 17 Dec 2014 11:39:45 -0800
Subject: [PATCH] hcl: support "." in identifier

---
 hcl/lex.go                        | 3 ++-
 hcl/lex_test.go                   | 4 ++++
 hcl/test-fixtures/complex_key.hcl | 1 +
 3 files changed, 7 insertions(+), 1 deletion(-)
 create mode 100644 hcl/test-fixtures/complex_key.hcl

diff --git a/hcl/lex.go b/hcl/lex.go
index c3ccd4b..e0c96b1 100644
--- a/hcl/lex.go
+++ b/hcl/lex.go
@@ -193,7 +193,8 @@ func (x *hclLex) lexId(yylval *hclSymType) int {
 			break
 		}
 
-		if !unicode.IsDigit(c) && !unicode.IsLetter(c) && c != '_' && c != '-' {
+		if !unicode.IsDigit(c) && !unicode.IsLetter(c) &&
+			c != '_' && c != '-' && c != '.' {
 			x.backup()
 
 			if first {
diff --git a/hcl/lex_test.go b/hcl/lex_test.go
index f9ab5cc..dcdd9b3 100644
--- a/hcl/lex_test.go
+++ b/hcl/lex_test.go
@@ -20,6 +20,10 @@ func TestLex(t *testing.T) {
 			"comment_single.hcl",
 			[]int{lexEOF},
 		},
+		{
+			"complex_key.hcl",
+			[]int{IDENTIFIER, EQUAL, STRING, lexEOF},
+		},
 		{
 			"multiple.hcl",
 			[]int{
diff --git a/hcl/test-fixtures/complex_key.hcl b/hcl/test-fixtures/complex_key.hcl
new file mode 100644
index 0000000..0007aaf
--- /dev/null
+++ b/hcl/test-fixtures/complex_key.hcl
@@ -0,0 +1 @@
+foo.bar = "baz"