Add --no-color (+c) option

README.md

@@ -73,6 +73,7 @@ usage: fzf [options]
   -s, --sort=MAX   Maximum number of matched items to sort. Default: 500
   +s, --no-sort    Keep the sequence unchanged.
   +i               Case-sensitive match
+  +c, --no-color   Disable colors
 ```
 
 fzf will launch curses-based finder, read the list from STDIN, and write the

fzf

@@ -40,7 +40,8 @@ def usage x
 
   -s, --sort=MAX   Maximum number of matched items to sort. Default: 500.
   +s, --no-sort    Do not sort the result. Keep the sequence unchanged.
-  +i               Case-sensitive match]
+  +i               Case-sensitive match
+  +c, --no-color   Disable colors]
   exit x
 end
 
@@ -50,6 +51,7 @@ $stdout.reopen($stderr)
 usage 0 unless (%w[--help -h] & ARGV).empty?
 @rxflag = ARGV.delete('+i') ? 0 : Regexp::IGNORECASE
 @sort   = (ARGV.delete('+s') || ARGV.delete('--no-sort')) ? nil : 500
+@color  = (ARGV.delete('+c') || ARGV.delete('--no-color')).nil?
 rest    = ARGV.join ' '
 if sort = rest.match(/(-s|--sort=?) ?([0-9]+)/)
   usage 1 unless @sort
@@ -132,7 +134,7 @@ when /darwin/
           ret << c
         end
       end
-      return [ret, omap[b] || 0, omap[e] || (omap.last || 0 + 1)]
+      return [ret, omap[b] || 0, omap[e] || ((omap.last || 0) + 1)]
     end
   end
 
@@ -260,6 +262,8 @@ dbg =
   end
 C.raw
 C.noecho
+
+if @color
   if C.can_change_color?
     fg = ENV.fetch('FZF_FG', 252).to_i
     bg = ENV.fetch('FZF_BG', 236).to_i
@@ -285,6 +289,20 @@ def color sym, bold = false
                   :match!, :fan, :info, :red].index(sym) + 1) |
       (bold ? C::A_BOLD : 0)
   end
+else
+  def color sym, bold = false
+    case sym
+    when :chosen
+     bold ? C::A_REVERSE : 0
+    when :match
+      C::A_UNDERLINE
+    when :match!
+      C::A_REVERSE | C::A_UNDERLINE
+    else
+      0
+    end | (bold ? C::A_BOLD : 0)
+  end
+end
 
 @read =
   if $stdin.tty?