Update README

This is automatically set in install script. It may only cause unnecessary
confusion.

README.md

@@ -59,6 +59,7 @@ usage: fzf [options]
     +i                   Case-sensitive match
     +c, --no-color       Disable colors
     +2, --no-256         Disable 256-color
+        --black          Use black background
         --no-mouse       Disable mouse
 
   Environment variables
@@ -290,34 +291,20 @@ a very large list of files, fzf is significantly faster and it does not block.
 Tips
 ----
 
-### Faster startup with `--disable-gems` options
+### Rendering issues
 
-If you're running Ruby 1.9 or above, you can improve the startup time with
-`--disable-gems` option to Ruby.
+If you have any rendering issues, check the followings:
 
-- `time ruby ~/bin/fzf -h`
-    - 0.077 sec
-- `time ruby --disable-gems ~/bin/fzf -h`
-    - 0.025 sec
-
-You can define fzf function with the option as follows:
-
-```sh
-fzf() {
-  ruby --disable-gems ~/bin/fzf "$@"
-}
-export -f fzf
-```
-
-However, this is automatically set up in your .bashrc and .zshrc if you use the
-bundled [install](https://github.com/junegunn/fzf/blob/master/install) script.
-
-### Incorrect display on Ruby 1.8
-
-It is reported that the output of fzf can become unreadable on some terminals
-when it's running on Ruby 1.8. If you experience the problem, upgrade your Ruby
-to 1.9 or above. Ruby 1.9 or above is also required for displaying Unicode
-characters.
+1. Make sure `$TERM` is correctly set. fzf will use 256-color only if it
+  contains `256` (e.g. `xterm-256color`)
+2. If you're on screen or tmux, `$TERM` should be either `screen` or
+  `screen-256color`
+3. Some terminal emulators (e.g. mintty) have problem displaying default
+  background color and make some text unable to read. In that case, try `--black`
+  option. And if it solves your problem, I recommend including it in
+  `FZF_DEFAULT_OPTS` for further convenience.
+4. If you still have problem, try `--no-256` option or even `--no-color`.
+5. Ruby 1.9 or above is required for correctly displaying unicode characters.
 
 ### Ranking algorithm
 

fzf

@@ -7,7 +7,7 @@
 #  / __/ / /_/ __/
 # /_/   /___/_/    Fuzzy finder for your shell
 #
-# Version: 0.8.0 (March 8, 2014)
+# Version: 0.8.1 (March 9, 2014)
 #
 # Author:  Junegunn Choi
 # URL:     https://github.com/junegunn/fzf
@@ -50,7 +50,7 @@ end
 
 class FZF
   C = Curses
-  attr_reader :rxflag, :sort, :color, :ansi256, :mouse, :multi, :query, :filter, :extended
+  attr_reader :rxflag, :sort, :color, :black, :ansi256, :mouse, :multi, :query, :filter, :extended
 
   class AtomicVar
     def initialize value
@@ -78,6 +78,7 @@ class FZF
     @sort     = ENV.fetch('FZF_DEFAULT_SORT', 1000).to_i
     @color    = true
     @ansi256  = true
+    @black    = false
     @multi    = false
     @mouse    = true
     @extended = nil
@@ -104,6 +105,8 @@ class FZF
       when '+c', '--no-color'    then @color    = false
       when '-2', '--256'         then @ansi256  = true
       when '+2', '--no-256'      then @ansi256  = false
+      when       '--black'       then @black    = true
+      when       '--no-black'    then @black    = false
       when       '--mouse'       then @mouse    = true
       when       '--no-mouse'    then @mouse    = false
       when '+s', '--no-sort'     then @sort     = nil
@@ -211,6 +214,7 @@ class FZF
     +i                   Case-sensitive match
     +c, --no-color       Disable colors
     +2, --no-256         Disable 256-color
+        --black          Use black background
         --no-mouse       Disable mouse
 
   Environment variables
@@ -517,7 +521,7 @@ class FZF
     C.mousemask C::ALL_MOUSE_EVENTS if @mouse
     C.start_color
     dbg =
-      if C.respond_to?(:use_default_colors)
+      if !@black && C.respond_to?(:use_default_colors)
         C.use_default_colors
         -1
       else

fzf.gemspec

@@ -1,7 +1,7 @@
 # coding: utf-8
 Gem::Specification.new do |spec|
   spec.name          = 'fzf'
-  spec.version       = '0.8.0'
+  spec.version       = '0.8.1'
   spec.authors       = ['Junegunn Choi']
   spec.email         = ['junegunn.c@gmail.com']
   spec.description   = %q{Fuzzy finder for your shell}

test/test_fzf.rb

@@ -28,7 +28,7 @@ class TestFZF < MiniTest::Unit::TestCase
     fzf = FZF.new []
     assert_equal 20000, fzf.sort
 
-    ENV['FZF_DEFAULT_OPTS'] = '-x -m -s 10000 -q "  hello  world  " +c +2 --no-mouse -f "goodbye world"'
+    ENV['FZF_DEFAULT_OPTS'] = '-x -m -s 10000 -q "  hello  world  " +c +2 --no-mouse -f "goodbye world" --black'
     fzf = FZF.new []
     assert_equal 10000,   fzf.sort
     assert_equal '  hello  world  ',
@@ -39,6 +39,7 @@ class TestFZF < MiniTest::Unit::TestCase
     assert_equal true,    fzf.multi
     assert_equal false,   fzf.color
     assert_equal false,   fzf.ansi256
+    assert_equal true,    fzf.black
     assert_equal false,   fzf.mouse
   end
 
@@ -50,6 +51,7 @@ class TestFZF < MiniTest::Unit::TestCase
     assert_equal true,    fzf.multi
     assert_equal false,   fzf.color
     assert_equal false,   fzf.ansi256
+    assert_equal false,   fzf.black
     assert_equal false,   fzf.mouse
     assert_equal 0,       fzf.rxflag
     assert_equal 'hello', fzf.query.get
@@ -57,12 +59,13 @@ class TestFZF < MiniTest::Unit::TestCase
     assert_equal :exact,  fzf.extended
 
     fzf = FZF.new %w[--sort=2000 --no-color --multi +i --query hello
-                     --filter a --filter b --no-256
+                     --filter a --filter b --no-256 --black
                      --no-sort -i --color --no-multi --256]
     assert_equal nil,     fzf.sort
     assert_equal false,   fzf.multi
     assert_equal true,    fzf.color
     assert_equal true,    fzf.ansi256
+    assert_equal true,    fzf.black
     assert_equal true,    fzf.mouse
     assert_equal 1,       fzf.rxflag
     assert_equal 'b',     fzf.filter
@@ -82,11 +85,12 @@ class TestFZF < MiniTest::Unit::TestCase
 
     # Left-to-right
     fzf = FZF.new %w[-s 2000 +c -m +i -qhello -x -fgoodbye +2
-                     -s 3000 -c +m -i -q world +x -fworld -2]
+                     -s 3000 -c +m -i -q world +x -fworld -2 --black --no-black]
     assert_equal 3000,    fzf.sort
     assert_equal false,   fzf.multi
     assert_equal true,    fzf.color
     assert_equal true,    fzf.ansi256
+    assert_equal false,   fzf.black
     assert_equal 1,       fzf.rxflag
     assert_equal 'world', fzf.query.get
     assert_equal 'world', fzf.filter