Rubocop: Using single-quotes properly

lib/squib/api/data.rb

@@ -32,7 +32,7 @@ module Squib
       (s.first_row+1).upto(s.last_row) do |row|
         cell = s.cell(row,col)
         # Roo hack for avoiding unnecessary .0's on whole integers
-        cell = s.excelx_value(row,col) if s.excelx_type(row,col) == [:numeric_or_formula, "General"]
+        cell = s.excelx_value(row,col) if s.excelx_type(row,col) == [:numeric_or_formula, 'General']
         data[header] << cell
       end#row
     end#col

lib/squib/api/image.rb

@@ -20,7 +20,7 @@ module Squib
     def png(opts = {})
       opts = needs(opts, [:range, :files, :x, :y, :alpha, :layout, :blend])
       Dir.chdir(@img_dir) do
-        @progress_bar.start("Loading PNG(s)", opts[:range].size) do |bar|
+        @progress_bar.start('Loading PNG(s)', opts[:range].size) do |bar|
           opts[:range].each do |i|
             @cards[i].png(opts[:file][i], opts[:x][i], opts[:y][i], opts[:alpha][i], opts[:blend][i])
             bar.increment
@@ -51,7 +51,7 @@ module Squib
     def svg(opts = {})
       p = needs(opts,[:range, :files, :svgid, :force_svgid, :x, :y, :width, :height, :layout, :alpha, :blend])
       Dir.chdir(@img_dir) do
-        @progress_bar.start("Loading SVG(s)", p[:range].size) do |bar|
+        @progress_bar.start('Loading SVG(s)', p[:range].size) do |bar|
           p[:range].each do |i|
             unless p[:force_id][i] && p[:id][i].to_s.empty?
               @cards[i].svg(p[:file][i], p[:id][i], p[:x][i], p[:y][i],

lib/squib/api/units.rb

@@ -6,7 +6,7 @@ module Squib
     # @example
     #   inches(2.5) # 750 (for default Deck::dpi of 300)
     #
-    # @param [Decimal] n, the number of inches
+    # @param n [Decimal], the number of inches
     # @return [Decimal] the number of pixels, according to the deck's DPI
     # @api public
     def inches(n)

lib/squib/commands/new.rb

@@ -26,7 +26,7 @@ module Squib
       def process(args)
         raise ArgumentError.new('Please specify a path.') if args.empty?
 
-        new_project_path = File.expand_path(args.join(" "), Dir.pwd)
+        new_project_path = File.expand_path(args.join(' '), Dir.pwd)
         template_path = File.expand_path('../project_template', File.dirname(__FILE__))
 
         FileUtils.mkdir_p new_project_path

lib/squib/constants.rb

@@ -9,7 +9,7 @@ module Squib
       :blend => :none,
       :color => :black,
       :default_font => 'Arial 36',
-      :dir => "_output",
+      :dir => '_output',
       :ellipsize => :end,
       :fill_color => '#0000',
       :force_id => false,
@@ -23,7 +23,7 @@ module Squib
       :justify => false,
       :margin => 75,
       :markup => false,
-      :prefix => "card_",
+      :prefix => 'card_',
       :progress_bar => false,
       :range => :all,
       :rotate => false,

lib/squib/deck.rb

@@ -42,7 +42,7 @@ module Squib
     # @example
     #   require 'squib'
     #   Squib::Deck.new do
-    #     text str: 'Hello, World!'
+    #     text str: 'Hello, World!"
     #   end
     #
     # @param width [Integer] the width of each card in pixels
@@ -126,9 +126,9 @@ module Squib
       parent_keys.each do |parent_key|
         from_extends = yml[key].merge(recurse_extends(yml, parent_key, visited)) do |key, child_val, parent_val|
           if child_val.to_s.strip.start_with?('+=')
-            parent_val + child_val.sub("+=",'').strip.to_f
+            parent_val + child_val.sub('+=','').strip.to_f
           elsif child_val.to_s.strip.start_with?('-=')
-            parent_val - child_val.sub("-=",'').strip.to_f
+            parent_val - child_val.sub('-=','').strip.to_f
           else
             child_val #child overrides parent when merging, no +=
           end

lib/squib/progress.rb

@@ -23,7 +23,7 @@ module Squib
       @enabled = enabled
     end
 
-    def start(title="", total=100, &block)
+    def start(title='', total=100, &block)
       if @enabled
         @bar = ProgressBar.create(title: title, total: total, format: '%t <%B> %p%% %a')
         yield(@bar)

lib/squib/project_template/deck.rb

@@ -1,6 +1,6 @@
 require 'squib'
 
 Squib::Deck.new(cards: 3, layout: 'layout.yml') do
-  text str: "Hello, World!"
+  text str: 'Hello, World!'
   save format: :png
 end

lib/squib/version.rb

@@ -6,5 +6,5 @@ module Squib
   # Most of the time this is in the alpha of the next release.
   # e.g. v0.0.5a is on its way to becoming v0.0.5
   #
-  VERSION = "0.0.5a"
+  VERSION = '0.0.5a'
 end