Add a bunch of stuff, change leader key

git-svn-id: http://photonzero.com/dotfiles/trunk@70 23f722f6-122a-0410-8cef-c75bd312dd78

.vim/bundle/lusty/src/vim.rb

@@ -0,0 +1,112 @@
+# Copyright (C) 2007-2010 Stephen Bach
+#
+# Permission is hereby granted to use and distribute this code, with or without
+# modifications, provided that this copyright notice is copied with it. Like
+# anything else that's free, this file is provided *as is* and comes with no
+# warranty of any kind, either expressed or implied. In no event will the
+# copyright holder be liable for any damages resulting from the use of this
+# software.
+
+module VIM
+
+  unless const_defined? "MOST_POSITIVE_INTEGER"
+    MOST_POSITIVE_INTEGER = 2**(32 - 1) - 2  # Vim ints are signed 32-bit.
+  end
+
+  def self.zero?(var)
+    # In Vim 7.2 and older, VIM::evaluate returns Strings for boolean
+    # expressions; in later versions, Fixnums.
+    case var
+    when String
+      var == "0"
+    when Fixnum
+      var == 0
+    else
+      LustyM::assert(false, "unexpected type: #{var.class}")
+    end
+  end
+
+  def self.nonzero?(var)
+    not zero?(var)
+  end
+
+  def self.evaluate_bool(var)
+    nonzero? evaluate(var)
+  end
+
+  def self.exists?(s)
+    nonzero? evaluate("exists('#{s}')")
+  end
+
+  def self.has_syntax?
+    nonzero? evaluate('has("syntax")')
+  end
+
+  def self.columns
+    evaluate("&columns").to_i
+  end
+
+  def self.lines
+    evaluate("&lines").to_i
+  end
+
+  def self.getcwd
+    evaluate("getcwd()")
+  end
+
+  def self.bufname(i)
+    if evaluate_bool("empty(bufname(#{i}))")
+      "<Unknown #{i}>"
+    else
+      evaluate("bufname(#{i})")
+    end
+  end
+
+  def self.single_quote_escape(s)
+    # Everything in a Vim single-quoted string is literal, except single
+    # quotes.  Single quotes are escaped by doubling them.
+    s.gsub("'", "''")
+  end
+
+  def self.filename_escape(s)
+    # Escape slashes, open square braces, spaces, sharps, and double quotes.
+    s.gsub(/\\/, '\\\\\\').gsub(/[\[ #"]/, '\\\\\0')
+  end
+
+  def self.regex_escape(s)
+    s.gsub(/[\]\[.~"^$\\*]/,'\\\\\0')
+  end
+
+  class Buffer
+    def modified?
+      VIM::nonzero? VIM::evaluate("getbufvar(#{number()}, '&modified')")
+    end
+
+    def self.obj_for_bufnr(n)
+      # There's gotta be a better way to do this...
+      (0..VIM::Buffer.count-1).each do |i|
+        obj = VIM::Buffer[i]
+        return obj if obj.number == n
+      end
+
+      return nil
+    end
+  end
+
+  # Print with colours
+  def self.pretty_msg(*rest)
+    return if rest.length == 0
+    return if rest.length % 2 != 0
+
+    command "redraw"  # see :help echo-redraw
+    i = 0
+    while i < rest.length do
+      command "echohl #{rest[i]}"
+      command "echon '#{rest[i+1]}'"
+      i += 2
+    end
+
+    command 'echohl None'
+  end
+end
+