From e918cf3ca647be91e38413f148f31b360b596ac6 Mon Sep 17 00:00:00 2001
From: Willem <willemfranco@gmail.com>
Date: Tue, 18 Jun 2019 09:51:14 -0500
Subject: [PATCH] Support empty lines and comments.

In debug mode, show errors like:
```
[dotenv][DEBUG] did not match key and value when parsing line <n>:
[dotenv][DEBUG] did not match key and value when parsing line <n>: #<COMMENTED_LINE>
```
Sometimes we need to add empty lines to separate groups of variables, or comment some of them.
We don't want the debugger or the parser catch them.
---
 lib/main.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/main.js b/lib/main.js
index 38f36f31..1b50270e 100644
--- a/lib/main.js
+++ b/lib/main.js
@@ -39,6 +39,11 @@ function parse (src /*: string | Buffer */, options /*: ?DotenvParseOptions */)
 
   // convert Buffers before splitting into lines and processing
   src.toString().split(NEWLINE).forEach(function (line, idx) {
+    line = line.trim()
+    // ignore empty and commented lines
+    if (line === '' || line[0] === '#') {
+      return
+    }
     // matching "KEY' and 'VAL' in 'KEY=VAL'
     const keyValueArr = line.match(RE_INI_KEY_VAL)
     // matched?