Implemented options and a clean layout

src/beautifiers/latex-beautify.coffee

@@ -1,6 +1,9 @@
 "use strict"
 Beautifier = require('./beautifier')
 path = require('path')
+fs = require("fs")
+temp = require("temp").track()
+
 
 module.exports = class LatexBeautify extends Beautifier
   name: "Latex Beautify"
@@ -9,19 +12,61 @@ module.exports = class LatexBeautify extends Beautifier
     LaTeX: true
   }
 
+  # There are too many options with latexmk, I have tried to slim this down to the most useful ones.
+  # This method creates a configuration file for latexindent.
+  buildConfigFile: (options) ->
+    indentChar = options.indent_char
+    if options.indent_with_tabs
+      indentChar = "\t"
+    # +true = 1 and +false = 0
+    config = """
+             defaultIndent: \"#{indentChar}\"
+             alwaysLookforSplitBraces: #{+options.always_look_for_split_braces}
+             alwaysLookforSplitBrackets: #{+options.always_look_for_split_brackets}
+             indentPreamble: #{+options.indent_preamble}
+             removeTrailingWhitespace: #{+options.remove_trailing_whitespace}
+             lookForAlignDelims:\n
+             """
+    for delim in options.align_columns_in_environments
+      config += "\t#{delim}: 1\n"
+    return config
+
+  # Latexindent accepts configuration _files_ only.
+  # This file has to be named localSettings.yaml and be in the same folder as the tex file.
+  # It also insists on creating a log file somewhere.
+  # So we set up a directory with all the files in place.
+  setUpDir: (dirPath, text, config) ->
+    @texFile = path.join(dirPath, "latex.tex")
+    fs.writeFile @texFile, text, (err) ->
+      return reject(err) if err
+    @configFile = path.join(dirPath, "localSettings.yaml")
+    fs.writeFile @configFile, config, (err) ->
+      return reject(err) if err
+    @logFile = path.join(dirPath, "indent.log")
+    fs.writeFile @logFile, "", (err) ->
+      return reject(err) if err
+
+  #Beautifier does not currently have a method for creating directories, so we call temp directly.
   beautify: (text, language, options) ->
-    @tempFile("indent", "", "log")
-    .then( (logFile)=>
-      logDir = path.dirname logFile
-      @tempTex = @tempFile("latex", text)
+    new @Promise((resolve, reject) ->
+      temp.mkdir("latex", (err, dirPath) ->
+        return reject(err) if err
+        resolve(dirPath)
+      )
+    )
+    .then((dirPath)=>
+      @setUpDir(dirPath, text, @buildConfigFile(options))
       run = @run "latexindent", [
-        "-o"
-        "-s"
-        "-c=" + logDir
-        @tempTex
-        @tempTex
-      ]
+        "-o"            #Output to the same location as file, -w creates a backup file, whereas this does not
+        "-s"            #Silent mode
+        "-l"            #Tell latexindent we have a local configuration file
+        "-c=" + dirPath #Tell latexindent to place the log file in this directory
+        @texFile
+        @texFile
+      ], help: {
+        link: "https://github.com/cmhughes/latexindent.pl"
+      }
     )
     .then( =>
-      @readFile(@tempTex)
+      @readFile(@texFile)
     )

src/languages/latex.coffee

@@ -31,85 +31,32 @@ module.exports = {
 
   ###
   options:
-    # JavaScript
-    indent_size:
-      type: 'integer'
-      default: defaultIndentSize
-      minimum: 0
-      description: "Indentation size/length"
     indent_char:
       type: 'string'
       default: defaultIndentChar
       description: "Indentation character"
-    indent_level:
-      type: 'integer'
-      default: 0
-      description: "Initial indentation level"
     indent_with_tabs:
       type: 'boolean'
       default: defaultIndentWithTabs
       description: "Indentation uses tabs, overrides `Indent Size` and `Indent Char`"
-    preserve_newlines:
+    indent_preamble:
+      type: 'boolean'
+      default: false
+      description: "Indent the preable"
+    always_look_for_split_braces:
       type: 'boolean'
       default: true
-      description: "Preserve line-breaks"
-    max_preserve_newlines:
-      type: 'integer'
-      default: 10
-      description: "Number of line-breaks to be preserved in one chunk"
-    space_in_paren:
+      description: "If `latexindent` should look for commands that split braces across lines"
+    always_look_for_split_brackets:
       type: 'boolean'
       default: false
-      description: "Add padding spaces within paren, ie. f( a, b )"
-    jslint_happy:
+      description: "If `latexindent` should look for commands that split brackets across lines"
+    remove_trailing_whitespace:
       type: 'boolean'
       default: false
-      description: "Enable jslint-stricter mode"
-    space_after_anon_function:
-      type: 'boolean'
-      default: false
-      description: "Add a space before an anonymous function's parens, ie. function ()"
-    brace_style:
-      type: 'string'
-      default: "collapse"
-      enum: ["collapse", "collapse-preserve-inline", "expand", "end-expand", "none"]
-      description: "[collapse|collapse-preserve-inline|expand|end-expand|none]"
-    break_chained_methods:
-      type: 'boolean'
-      default: false
-      description: "Break chained method calls across subsequent lines"
-    keep_array_indentation:
-      type: 'boolean'
-      default: false
-      description: "Preserve array indentation"
-    keep_function_indentation:
-      type: 'boolean'
-      default: false
-      description: ""
-    space_before_conditional:
-      type: 'boolean'
-      default: true
-      description: ""
-    eval_code:
-      type: 'boolean'
-      default: false
-      description: ""
-    unescape_strings:
-      type: 'boolean'
-      default: false
-      description: "Decode printable characters encoded in xNN notation"
-    wrap_line_length:
-      type: 'integer'
-      default: 0
-      description: "Wrap lines at next opportunity after N characters"
-    end_with_newline:
-      type: 'boolean'
-      default: false
-      description: "End output with newline"
-    end_with_comma:
-      type: 'boolean'
-      default: false
-      description: "If a terminating comma should be inserted into \
-                  arrays, object literals, and destructured objects."
-
+      description: "Remove trailing whitespace"
+    align_columns_in_environments:
+      type: 'array'
+      default:["tabular", "matrix", "bmatrix", "pmatrix"]
+      decription: "Aligns columns by the alignment tabs for environments specified"
 }