vendor dependencies with dep

vendor/github.com/go-pg/pg/internal/parser/util.go

@@ -0,0 +1,15 @@
+package parser
+
+var pgNull = []byte("NULL")
+
+func isNum(c byte) bool {
+	return c >= '0' && c <= '9'
+}
+
+func isAlpha(c byte) bool {
+	return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')
+}
+
+func isAlnum(c byte) bool {
+	return isAlpha(c) || isNum(c)
+}