Handle files.eol option of "auto"

Resolves #45

lib/commands.js

@@ -1,4 +1,5 @@
-var vscode = require("vscode")
+var vscode = require("vscode");
+var env = require('./env');
 var editorHelpers = require("./editorHelpers");
 var tables = require("./tables");
 
@@ -67,7 +68,8 @@ function toggleStrikethrough() {
     return editorHelpers.surroundSelection('~~', '~~', toggleStrikethroughPattern);
 }
 
-var newLine = vscode.workspace.getConfiguration('files').get('eol', '\r\n');
+let newLine = env.getEol();
+
 var startingBlock = '```' + newLine;
 var endingBlock = newLine + '```';
 var codeBlockWordPattern = new RegExp(startingBlock + '.+' + endingBlock + '|.+', 'gm');

lib/env.js

@@ -0,0 +1,14 @@
+const os = require('os');
+const vscode = require('vscode');
+
+function getEol() {
+    const newLineSetting = vscode.workspace.getConfiguration('files', null).get('eol');
+    let newLine = os.EOL;
+    if (newLineSetting === '\n' || newLineSetting === '\r\n') newLine = newLineSetting;
+
+    return newLine;
+}
+
+module.exports = {
+    getEol: getEol
+}

package.json

@@ -13,7 +13,9 @@
     ],
     "keywords": [
         "markdown",
-        "shortcut"
+        "shortcut",
+        "tool",
+        "helper"
     ],
     "main": "./extension",
     "activationEvents": [

test/extension.test.js

@@ -3,6 +3,7 @@
 var assert = require( 'assert' );
 var vscode = require( 'vscode' );
 var vscodeTestContent = require( 'vscode-test-content' );
+var env = require('../lib/env');
 
 suite( "Bold", function() {
     test( "Ranged selection", function() {
@@ -141,7 +142,7 @@ suite( "Headers", function() {
     }
 } );
 
-var newLine = vscode.workspace.getConfiguration('files').get('eol', '\n');
+var newLine = env.getEol();
 suite( "Block code", function() {
     test( "Ranged selection", function() {
         return TestCommand(