# Copyright 2010-2012 Wincent Colaiuta. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice,
#    this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright notice,
#    this list of conditions and the following disclaimer in the documentation
#    and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# POSSIBILITY OF SUCH DAMAGE.

require 'command-t/vim/screen'
require 'command-t/vim/window'

module CommandT
  module VIM
    def self.has_syntax?
      ::VIM::evaluate('has("syntax")').to_i != 0
    end

    def self.exists? str
      ::VIM::evaluate(%{exists("#{str}")}).to_i != 0
    end

    def self.has_conceal?
      ::VIM::evaluate('has("conceal")').to_i != 0
    end

    def self.pwd
      ::VIM::evaluate 'getcwd()'
    end

    # Execute cmd, capturing the output into a variable and returning it.
    def self.capture cmd
      ::VIM::command 'silent redir => g:command_t_captured_output'
      ::VIM::command cmd
      ::VIM::command 'silent redir END'
      ::VIM::evaluate 'g:command_t_captured_output'
    end

    # Escape a string for safe inclusion in a Vim single-quoted string
    # (single quotes escaped by doubling, everything else is literal)
    def self.escape_for_single_quotes str
      str.gsub "'", "''"
    end
  end # module VIM
end # module CommandT