fix bug #1588

examples/simple-jsbeautifyrc/lua/expected/test.lua

@@ -2,6 +2,7 @@
 -- and return a closure which can be used for continuing the sort.
 local a = 'a  b   c'
 local b = '12345678'
+local x = 1.99e-07
 local c = 'a  b   c' + 'a  b   c'
 local t = {
   a = 1,

examples/simple-jsbeautifyrc/lua/original/test.lua

@@ -2,6 +2,7 @@
 -- and return a closure which can be used for continuing the sort.
 local a= 'a  b   c'
 local b ='12345678'
+local x = 1.99e-07
 local     c           =               'a  b   c'          +'a  b   c'
 local t = {
 a = 1,

src/beautifiers/lua-beautifier/beautifier.coffee

@@ -8,7 +8,8 @@ adjust_space = (line) ->
   # 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'
+  line = line.replace /([^=e\-\(\s])\s?\-\s?([^\-\[])/g, '$1 - $2'
+  line = line.replace /([^\d])e\s?\-\s?([^\-\[])/g, '$1e - $2'
   # just format minus, not for -- or negative number or commentary.
   line = line.replace /,([^\s])/g, ', $1'
   # adjust ','
@@ -25,7 +26,8 @@ adjust_space = (line) ->
 DEFAULT_WARN_FN = (msg) ->
   console.log('WARNING:', msg)
 
-module.exports = (str, indent, warn_fn) ->
+module.exports = (str, indent, warn_fn, opts = {}) ->
+  do_not_change_whitespace = !!opts?.do_not_change_whitespace
   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)
@@ -45,7 +47,7 @@ module.exports = (str, indent, warn_fn) ->
           arr = line.split(/\]=*\]/, 2)
           comment = arr[0]
           code = arr[1]
-          line = comment + ']' + '='.repeat($template - 1) + ']' + adjust_space(code)
+          line = comment + ']' + '='.repeat($template - 1) + ']' + if do_not_change_whitespace then code else adjust_space(code)
           $template = 0
         $template = 0
       else
@@ -56,7 +58,7 @@ module.exports = (str, indent, warn_fn) ->
     if !$template_flag
       line = line.trim()
       # remote all spaces on both ends
-      line = adjust_space(line)
+      line = if do_not_change_whitespace then line else adjust_space(line)
     if !line.length
       return ''
     raw_line = line

src/beautifiers/lua-beautifier/index.coffee

@@ -18,6 +18,6 @@ module.exports = class Lua extends Beautifier
   beautify: (text, language, options) ->
     new @Promise (resolve, reject) ->
       try
-        resolve format text, options.indent_char.repeat options.indent_size
+        resolve format text, options.indent_char.repeat(options.indent_size), @warn, options
       catch error
         reject error

src/languages/lua.coffee

@@ -19,4 +19,9 @@ module.exports = {
 
   defaultBeautifier: "Lua beautifier"
 
+  options:
+    do_not_change_whitespace:
+      type: 'boolean'
+      default: false
+      description: "do not adjust whitespace"
 }