#
#   shell/builtin-command.rb - 
#   	$Release Version: 0.7 $
#   	$Revision$
#   	by Keiju ISHITSUKA(keiju@ruby-lang.org)
#
# --
#
#   
#

require "shell/filter"

class Shell
  class BuiltInCommand<Filter
    def wait?
      false
    end
    def active?
      true
    end
  end

  class Void < BuiltInCommand
    def initialize(sh, *opts)
      super sh
    end
    
    def each(rs = nil)
      # do nothing
    end
  end

  class Echo < BuiltInCommand
    def initialize(sh, *strings)
      super sh
      @strings = strings
    end
    
    def each(rs = nil)
      rs =  @shell.record_separator unless rs
      for str  in @strings
	yield str + rs
      end
    end
  end

  class Cat < BuiltInCommand
    def initialize(sh, *filenames)
      super sh
      @cat_files = filenames
    end

    def each(rs = nil)
      if @cat_files.empty?
	super
      else
	for src in @cat_files
	  @shell.foreach(src, rs){|l| yield l}
	end
      end
    end
  end

  class Glob < BuiltInCommand
    def initialize(sh, pattern)
      super sh

      @pattern = pattern
    end

    def each(rs = nil)
      if @pattern[0] == ?/ 
	@files = Dir[@pattern]
      else
	prefix = @shell.pwd+"/"
	@files = Dir[prefix+@pattern].collect{|p| p.sub(prefix, "")}
      end
      rs =  @shell.record_separator unless rs
      for f in @files
	yield f+rs
      end
    end
  end

#   class Sort < Cat
#     def initialize(sh, *filenames)
#       super
#     end
#
#     def each(rs = nil)
#       ary = []
#       super{|l|	ary.push l}
#       for l in ary.sort!
# 	yield l
#       end
#     end
#   end

  class AppendIO < BuiltInCommand
    def initialize(sh, io, filter)
      super sh
      @input = filter
      @io = io
    end

    def input=(filter)
      @input.input=filter
      for l in @input
	@io << l
      end
    end

  end

  class AppendFile < AppendIO
    def initialize(sh, to_filename, filter)
      @file_name = to_filename
      io = sh.open(to_filename, "a")
      super(sh, io, filter)
    end

    def input=(filter)
      begin
	super
      ensure
	@io.close
      end
    end
  end

  class Tee < BuiltInCommand
    def initialize(sh, filename)
      super sh
      @to_filename = filename
    end

    def each(rs = nil)
      to = @shell.open(@to_filename, "w")
      begin
	super{|l| to << l; yield l}
      ensure
	to.close
      end
    end
  end

  class Concat < BuiltInCommand
    def initialize(sh, *jobs)
      super(sh)
      @jobs = jobs
    end

    def each(rs = nil)
      while job = @jobs.shift
	job.each{|l| yield l}
      end
    end
  end
end
><form class='right' method='get' action='/cgit/rajeeshknambiar/public_git/smc/AnjaliOldLipi.git/.git/log/Rachana'>
<input type='hidden' name='h' value='mlym'/><input type='hidden' name='id' value='0b38ff59115e1c5f729980bb3b7834c5e7d2c1f4'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit/rajeeshknambiar/public_git/smc/AnjaliOldLipi.git/.git/commit/?h=mlym&amp;id=0b38ff59115e1c5f729980bb3b7834c5e7d2c1f4'>root</a>/<a href='/cgit/rajeeshknambiar/public_git/smc/AnjaliOldLipi.git/.git/commit/Rachana?h=mlym&amp;id=0b38ff59115e1c5f729980bb3b7834c5e7d2c1f4'>Rachana</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='h' value='mlym'/><input type='hidden' name='id' value='0b38ff59115e1c5f729980bb3b7834c5e7d2c1f4'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Santhosh Thottingal &lt;santhosh.thottingal@gmail.com&gt;</td><td class='right'>2013-03-23 17:17:22 +0530</td></tr>
<tr><th>committer</th><td>Santhosh Thottingal &lt;santhosh.thottingal@gmail.com&gt;</td><td class='right'>2013-03-23 17:17:22 +0530</td></tr>
<tr><th>commit</th><td colspan='2' class='sha1'><a href='/cgit/rajeeshknambiar/public_git/smc/AnjaliOldLipi.git/.git/commit/Rachana?h=mlym&amp;id=0b38ff59115e1c5f729980bb3b7834c5e7d2c1f4'>0b38ff59115e1c5f729980bb3b7834c5e7d2c1f4</a> (<a href='/cgit/rajeeshknambiar/public_git/smc/AnjaliOldLipi.git/.git/patch/Rachana?id=0b38ff59115e1c5f729980bb3b7834c5e7d2c1f4'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='sha1'><a href='/cgit/rajeeshknambiar/public_git/smc/AnjaliOldLipi.git/.git/tree/?h=mlym&amp;id=0b38ff59115e1c5f729980bb3b7834c5e7d2c1f4'>0f64c62bcf5af3803e5698202812047935353086</a> /<a href='/cgit/rajeeshknambiar/public_git/smc/AnjaliOldLipi.git/.git/tree/Rachana?h=mlym&amp;id=0b38ff59115e1c5f729980bb3b7834c5e7d2c1f4'>Rachana</a></td></tr>
<tr><th>parent</th><td colspan='2' class='sha1'><a href='/cgit/rajeeshknambiar/public_git/smc/AnjaliOldLipi.git/.git/commit/Rachana?h=mlym&amp;id=73fc55cd27b06af05bc6382c47140c195ad1cbdf'>73fc55cd27b06af05bc6382c47140c195ad1cbdf</a> (<a href='/cgit/rajeeshknambiar/public_git/smc/AnjaliOldLipi.git/.git/diff/Rachana?h=mlym&amp;id=0b38ff59115e1c5f729980bb3b7834c5e7d2c1f4&amp;id2=73fc55cd27b06af05bc6382c47140c195ad1cbdf'>diff</a>)</td></tr></table>
<div class='commit-subject'>Remove hintsing instructions</div><div class='commit-msg'>It is ineffective in Malayalam
</div><div class='diffstat-header'><a href='/cgit/rajeeshknambiar/public_git/smc/AnjaliOldLipi.git/.git/diff/?h=mlym&amp;id=0b38ff59115e1c5f729980bb3b7834c5e7d2c1f4'>Diffstat</a> (limited to 'Rachana')</div><table summary='diffstat' class='diffstat'><tr><td class='mode'>-rw-r--r--</td><td class='upd'><a href='/cgit/rajeeshknambiar/public_git/smc/AnjaliOldLipi.git/.git/diff/Rachana/Rachana.sfd?h=mlym&amp;id=0b38ff59115e1c5f729980bb3b7834c5e7d2c1f4'>Rachana/Rachana.sfd</a></td><td class='right'>280439</td><td class='graph'><table summary='file diffstat' width='100%'><tr><td class='add' style='width: 0.4%;'/><td class='rem' style='width: 99.6%;'/><td class='none' style='width: 0.0%;'/></tr></table></td></tr>
<tr><td class='mode'>-rw-r--r--</td><td class='upd'><a href='/cgit/rajeeshknambiar/public_git/smc/AnjaliOldLipi.git/.git/diff/Rachana/Rachana.ttf?h=mlym&amp;id=0b38ff59115e1c5f729980bb3b7834c5e7d2c1f4'>Rachana/Rachana.ttf</a></td><td class='right'>bin</td><td class='graph'>646656 -> 372352 bytes</table><div class='diffstat-summary'>2 files changed, 1055 insertions, 279384 deletions</div><table summary='diff' class='diff'><tr><td><div class='head'>diff --git a/Rachana/Rachana.sfd b/Rachana/Rachana.sfd<br/>index 7b6a183..ec119f9 100644<br/>--- a/<a href='/cgit/rajeeshknambiar/public_git/smc/AnjaliOldLipi.git/.git/tree/Rachana/Rachana.sfd?h=mlym&amp;id=73fc55cd27b06af05bc6382c47140c195ad1cbdf'>Rachana/Rachana.sfd</a><br/>+++ b/<a href='/cgit/rajeeshknambiar/public_git/smc/AnjaliOldLipi.git/.git/tree/Rachana/Rachana.sfd?h=mlym&amp;id=0b38ff59115e1c5f729980bb3b7834c5e7d2c1f4'>Rachana/Rachana.sfd</a></div>