diff --git a/src/beautifiers/lua-beautifier/beautifier.coffee b/src/beautifiers/lua-beautifier/beautifier.coffee
index c24e3ba..e7aba13 100644
--- a/src/beautifiers/lua-beautifier/beautifier.coffee
+++ b/src/beautifiers/lua-beautifier/beautifier.coffee
@@ -1,103 +1,103 @@
 DEFAULT_INDENT = '    '
 
 adjust_space = (line) ->
-    string_list = line.match /(['"])[^\1]*?\1/g
-    muli_string = line.match /\[(=*)\[([^\]\1\]]*)/
-    comment = line.match /\-{2}[^\[].*$/
-    line = line.replace /\s+/g, ' '
-    # replace all whitespaces inside the string with one space, WARNING: the whitespaces in string will be replace too!
-    line = line.replace /\s?(==|>=|<=|~=|[=><\+\*\/])\s?/g, ' $1 '
-    # add whitespace around the operator
-    line = line.replace /([^=|\-|(|\s])\s?\-\s?([^\-|\[])/g, '$1 - $2'
-    # just format minus, not for -- or negative number or commentary.
-    line = line.replace /,([^\s])/g, ', $1'
-    # adjust ','
-    line = line.replace /\s+,/g, ','
-    # recover the whitespaces in string.
-    line = line.replace /(['"])[^\1]*?\1/g, ->
-        string_list.shift()
-    if muli_string and muli_string[0]
-        line = line.replace /\[(=*)\[([^\]\1\]]*)/, muli_string[0]
-    if comment and comment[0]
-        line = line.replace /\-{2}[^\[].*$/, comment[0]
-    line
+  string_list = line.match /(['"])[^\1]*?\1/g
+  muli_string = line.match /\[(=*)\[([^\]\1\]]*)/
+  comment = line.match /\-{2}[^\[].*$/
+  line = line.replace /\s+/g, ' '
+  # replace all whitespaces inside the string with one space, WARNING: the whitespaces in string will be replace too!
+  line = line.replace /\s?(==|>=|<=|~=|[=><\+\*\/])\s?/g, ' $1 '
+  # add whitespace around the operator
+  line = line.replace /([^=|\-|(|\s])\s?\-\s?([^\-|\[])/g, '$1 - $2'
+  # just format minus, not for -- or negative number or commentary.
+  line = line.replace /,([^\s])/g, ', $1'
+  # adjust ','
+  line = line.replace /\s+,/g, ','
+  # recover the whitespaces in string.
+  line = line.replace /(['"])[^\1]*?\1/g, ->
+    string_list.shift()
+  if muli_string and muli_string[0]
+    line = line.replace /\[(=*)\[([^\]\1\]]*)/, muli_string[0]
+  if comment and comment[0]
+    line = line.replace /\-{2}[^\[].*$/, comment[0]
+  line
 
 DEFAULT_WARN_FN = (msg) ->
-    console.log('WARNING:', msg)
+  console.log('WARNING:', msg)
 
 module.exports = (str, indent, warn_fn) ->
-    indent = indent or DEFAULT_INDENT
-    warn_fn = if typeof warn_fn == 'function' then warn_fn else DEFAULT_WARN_FN
-    indent = ' '.repeat(indent) if Number.isInteger(indent)
-    $currIndent = 0
-    $nextIndent = 0
-    $prevLength = 0
-    $extIndent = 0
-    $lastIndent = 0
-    $template = 0
-    new_code = str.split(/\r?\n/g).map (line, line_number) ->
-        $template_flag = false
-        if $template
-            res2 = line.match(/\](=*)\]/)
-            if res2 and $template == res2[1].length + 1
-                $template_flag = true
-                if $template and !/]=*]$/.test(line)
-                    arr = line.split(/\]=*\]/, 2)
-                    comment = arr[0]
-                    code = arr[1]
-                    line = comment + ']' + '='.repeat($template - 1) + ']' + adjust_space(code)
-                    $template = 0
-                $template = 0
-            else
-                return line
-        res1 = line.match(/\[(=*)\[/)
-        if res1
-            $template = res1[1].length + 1
-        if !$template_flag
-            line = line.trim()
-            # remote all spaces on both ends
-            line = adjust_space(line)
-        if !line.length
-            return ''
-        raw_line = line
-        line = line.replace(/(['"])[^\1]*?\1/, '')
-        # remove all quoted fragments for proper bracket processing
-        line = line.replace(/\s*--.+/, '')
-        # remove all comments; this ignores long bracket style comments
-        if /^((local )?function|repeat|while)\b/.test(line) and !/\bend\s*[\),;]*$/.test(line) or /\b(then|do)$/.test(line) and !/^elseif\b/.test(line) or /^if\b/.test(line) and /\bthen\b/.test(line) and !/\bend$/.test(line) or /\bfunction ?(?:\w+ )?\([^\)]*\)$/.test(line) and !/\bend$/.test(line)
-            $nextIndent = $currIndent + 1
-        else if /^until\b/.test(line) or /^end\s*[\),;]*$/.test(line) or /^end\s*\)\s*\.\./.test(line) or /^else(if)?\b/.test(line) and /\bend$/.test(line)
-            $nextIndent = --$currIndent
-        else if /^else\b/.test(line) or /^elseif\b/.test(line)
-            $nextIndent = $currIndent
-            $currIndent = $currIndent - 1
-        $brackets = (line.match(/\(/g) or []).length - ((line.match(/\)/g) or []).length)
-        # capture unbalanced brackets
-        $curly = (line.match(/\{/g) or []).length - ((line.match(/\}/g) or []).length)
-        # capture unbalanced curly brackets
-        # close (curly) brackets if needed
-        if $curly < 0
-            $currIndent += $curly
-        if $brackets < 0
-            $currIndent += $brackets
-        $nextIndent += $brackets + $curly
-        # console.log({last: $lastIndent, curr: $currIndent, next: $nextIndent, ext: $extIndent})
-        if $currIndent - $lastIndent > 1
-            $extIndent += $nextIndent - $lastIndent - 1
-            $nextIndent = $currIndent = 1 + $lastIndent
-        if $currIndent - $lastIndent < -1 and $extIndent > 0
-            $extIndent += $currIndent - $lastIndent + 1
-            $currIndent = -1 + $lastIndent
-        if $nextIndent < $currIndent
-            $nextIndent = $currIndent
-        # console.log({last: $lastIndent, curr: $currIndent, next: $nextIndent, ext: $extIndent})
-        warn_fn """negative indentation at line #{line_number}: #{raw_line}""" if $currIndent < 0
-        new_line = (if raw_line.length and $currIndent > 0 and !$template_flag then indent.repeat($currIndent) else '') + raw_line
-        $useful = $prevLength > 0 or raw_line.length > 0
-        $lastIndent = $currIndent
-        $currIndent = $nextIndent
-        $prevLength = raw_line.length
-        new_line or undefined
+  indent = indent or DEFAULT_INDENT
+  warn_fn = if typeof warn_fn == 'function' then warn_fn else DEFAULT_WARN_FN
+  indent = ' '.repeat(indent) if Number.isInteger(indent)
+  $currIndent = 0
+  $nextIndent = 0
+  $prevLength = 0
+  $extIndent = 0
+  $lastIndent = 0
+  $template = 0
+  new_code = str.split(/\r?\n/g).map (line, line_number) ->
+    $template_flag = false
+    if $template
+      res2 = line.match(/\](=*)\]/)
+      if res2 and $template == res2[1].length + 1
+        $template_flag = true
+        if $template and !/]=*]$/.test(line)
+          arr = line.split(/\]=*\]/, 2)
+          comment = arr[0]
+          code = arr[1]
+          line = comment + ']' + '='.repeat($template - 1) + ']' + adjust_space(code)
+          $template = 0
+        $template = 0
+      else
+        return line
+    res1 = line.match(/\[(=*)\[/)
+    if res1
+      $template = res1[1].length + 1
+    if !$template_flag
+      line = line.trim()
+      # remote all spaces on both ends
+      line = adjust_space(line)
+    if !line.length
+      return ''
+    raw_line = line
+    line = line.replace(/(['"])[^\1]*?\1/, '')
+    # remove all quoted fragments for proper bracket processing
+    line = line.replace(/\s*--.+/, '')
+    # remove all comments; this ignores long bracket style comments
+    if /^((local )?function|repeat|while)\b/.test(line) and !/\bend\s*[\),;]*$/.test(line) or /\b(then|do)$/.test(line) and !/^elseif\b/.test(line) or /^if\b/.test(line) and /\bthen\b/.test(line) and !/\bend$/.test(line) or /\bfunction ?(?:\w+ )?\([^\)]*\)$/.test(line) and !/\bend$/.test(line)
+      $nextIndent = $currIndent + 1
+    else if /^until\b/.test(line) or /^end\s*[\),;]*$/.test(line) or /^end\s*\)\s*\.\./.test(line) or /^else(if)?\b/.test(line) and /\bend$/.test(line)
+      $nextIndent = --$currIndent
+    else if /^else\b/.test(line) or /^elseif\b/.test(line)
+      $nextIndent = $currIndent
+      $currIndent = $currIndent - 1
+    $brackets = (line.match(/\(/g) or []).length - ((line.match(/\)/g) or []).length)
+    # capture unbalanced brackets
+    $curly = (line.match(/\{/g) or []).length - ((line.match(/\}/g) or []).length)
+    # capture unbalanced curly brackets
+    # close (curly) brackets if needed
+    if $curly < 0
+      $currIndent += $curly
+    if $brackets < 0
+      $currIndent += $brackets
+    $nextIndent += $brackets + $curly
+    # console.log({last: $lastIndent, curr: $currIndent, next: $nextIndent, ext: $extIndent})
+    if $currIndent - $lastIndent > 1
+      $extIndent += $nextIndent - $lastIndent - 1
+      $nextIndent = $currIndent = 1 + $lastIndent
+    if $currIndent - $lastIndent < -1 and $extIndent > 0
+      $extIndent += $currIndent - $lastIndent + 1
+      $currIndent = -1 + $lastIndent
+    if $nextIndent < $currIndent
+      $nextIndent = $currIndent
+    # console.log({last: $lastIndent, curr: $currIndent, next: $nextIndent, ext: $extIndent})
+    warn_fn """negative indentation at line #{line_number}: #{raw_line}""" if $currIndent < 0
+    new_line = (if raw_line.length and $currIndent > 0 and !$template_flag then indent.repeat($currIndent) else '') + raw_line
+    $useful = $prevLength > 0 or raw_line.length > 0
+    $lastIndent = $currIndent
+    $currIndent = $nextIndent
+    $prevLength = raw_line.length
+    new_line or undefined
 
-    warn_fn 'positive indentation at the end' if $currIndent > 0
-    new_code.join '\n'
+  warn_fn 'positive indentation at the end' if $currIndent > 0
+  new_code.join '\n'