Class: Coopy::Coopy

Inherits:
Object
  • Object
show all
Defined in:
lib/lib/coopy/coopy.rb

Class Attribute Summary collapse

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(io = nil) ⇒ Coopy

Returns a new instance of Coopy.



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# File 'lib/lib/coopy/coopy.rb', line 7

def initialize(io = nil)
  self.init
  @io = io
end

Class Attribute Details

.version ⇒ Object

Returns the value of attribute version.



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# File 'lib/lib/coopy/coopy.rb', line 912

def version
  @version
end

Instance Attribute Details

#cache_txt ⇒ Object

Returns the value of attribute cache_txt.



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# File 'lib/lib/coopy/coopy.rb', line 28

def cache_txt
  @cache_txt
end

#css_output ⇒ Object

Returns the value of attribute css_output.



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# File 'lib/lib/coopy/coopy.rb', line 25

def css_output
  @css_output
end

#csv_eol_preference ⇒ Object

Returns the value of attribute csv_eol_preference.



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# File 'lib/lib/coopy/coopy.rb', line 16

def csv_eol_preference
  @csv_eol_preference
end

#daff_cmd ⇒ Object

Returns the value of attribute daff_cmd.



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# File 'lib/lib/coopy/coopy.rb', line 352

def daff_cmd
  @daff_cmd
end

#delim_preference ⇒ Object

Returns the value of attribute delim_preference.



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# File 'lib/lib/coopy/coopy.rb', line 15

def delim_preference
  @delim_preference
end

#diffs_found ⇒ Object

Returns the value of attribute diffs_found.



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# File 'lib/lib/coopy/coopy.rb', line 30

def diffs_found
  @diffs_found
end

#extern_preference ⇒ Object

Returns the value of attribute extern_preference.



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# File 'lib/lib/coopy/coopy.rb', line 17

def extern_preference
  @extern_preference
end

#fail_if_diff ⇒ Object

Returns the value of attribute fail_if_diff.



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# File 'lib/lib/coopy/coopy.rb', line 29

def fail_if_diff
  @fail_if_diff
end

#flags ⇒ Object

Returns the value of attribute flags.



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# File 'lib/lib/coopy/coopy.rb', line 27

def flags
  @flags
end

#format_preference ⇒ Object

protected - in ruby this doesn’t play well with static/inline methods



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# File 'lib/lib/coopy/coopy.rb', line 14

def format_preference
  @format_preference
end

#fragment ⇒ Object

Returns the value of attribute fragment.



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# File 'lib/lib/coopy/coopy.rb', line 26

def fragment
  @fragment
end

#io ⇒ Object

Returns the value of attribute io.



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# File 'lib/lib/coopy/coopy.rb', line 23

def io
  @io
end

#mv ⇒ Object

Returns the value of attribute mv.



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# File 'lib/lib/coopy/coopy.rb', line 31

def mv
  @mv
end

#nested_output ⇒ Object

Returns the value of attribute nested_output.



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# File 'lib/lib/coopy/coopy.rb', line 20

def nested_output
  @nested_output
end

#order_preference ⇒ Object

Returns the value of attribute order_preference.



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# File 'lib/lib/coopy/coopy.rb', line 22

def order_preference
  @order_preference
end

#order_set ⇒ Object

Returns the value of attribute order_set.



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# File 'lib/lib/coopy/coopy.rb', line 21

def order_set
  @order_set
end

#output_format ⇒ Object

Returns the value of attribute output_format.



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# File 'lib/lib/coopy/coopy.rb', line 18

def output_format
  @output_format
end

#output_format_set ⇒ Object

Returns the value of attribute output_format_set.



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# File 'lib/lib/coopy/coopy.rb', line 19

def output_format_set
  @output_format_set
end

#status ⇒ Object

protected - in ruby this doesn’t play well with static/inline methods



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# File 'lib/lib/coopy/coopy.rb', line 351

def status
  @status
end

#strategy ⇒ Object

Returns the value of attribute strategy.



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# File 'lib/lib/coopy/coopy.rb', line 24

def strategy
  @strategy
end

Class Method Details

.align(local, remote, flags, comp) ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 959

def Coopy.align(local,remote,flags,comp)
  comp.a = ::Coopy::Coopy.tablify(local)
  comp.b = ::Coopy::Coopy.tablify(remote)
  flags = ::Coopy::CompareFlags.new if flags == nil
  comp.compare_flags = flags
  ct = ::Coopy::CompareTable.new(comp)
  align = ct.align
  td = ::Coopy::TableDiff.new(align,flags)
  td
end

.cell_for(x) ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 1015

def Coopy.cell_for(x)
  x
end

.compare_tables(local, remote, flags = nil) ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 977

def Coopy.compare_tables(local,remote,flags = nil)
  comp = ::Coopy::TableComparisonState.new
  comp.a = ::Coopy::Coopy.tablify(local)
  comp.b = ::Coopy::Coopy.tablify(remote)
  comp.compare_flags = flags
  ct = ::Coopy::CompareTable.new(comp)
  ct
end

.compare_tables3(parent, local, remote, flags = nil) ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 986

def Coopy.compare_tables3(parent,local,remote,flags = nil)
  comp = ::Coopy::TableComparisonState.new
  comp.p = ::Coopy::Coopy.tablify(parent)
  comp.a = ::Coopy::Coopy.tablify(local)
  comp.b = ::Coopy::Coopy.tablify(remote)
  comp.compare_flags = flags
  ct = ::Coopy::CompareTable.new(comp)
  ct
end

.diff(local, remote, flags = nil) ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 938

def Coopy.diff(local,remote,flags = nil)
  comp = ::Coopy::TableComparisonState.new
  td = ::Coopy::Coopy.align(local,remote,flags,comp)
  o = ::Coopy::Coopy.get_blank_table(td,comp)
  o = comp.a.create if comp.a != nil
  o = comp.b.create if o == nil && comp.b != nil
  o = ::Coopy::SimpleTable.new(0,0) if o == nil
  td.hilite(o)
  o
end

.diff_as_ansi(local, remote, flags = nil) ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 929

def Coopy.diff_as_ansi(local,remote,flags = nil)
  tool = ::Coopy::Coopy.new(::Coopy::TableIO.new)
  tool.cache_txt = ""
  flags = ::Coopy::CompareFlags.new if flags == nil
  tool.output_format = "csv"
  tool.run_diff(flags.parent,local,remote,flags,nil)
  tool.cache_txt
end

.diff_as_html(local, remote, flags = nil) ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 916

def Coopy.diff_as_html(local,remote,flags = nil)
  comp = ::Coopy::TableComparisonState.new
  td = ::Coopy::Coopy.align(local,remote,flags,comp)
  o = ::Coopy::Coopy.get_blank_table(td,comp)
  o = comp.a.create if comp.a != nil
  o = comp.b.create if o == nil && comp.b != nil
  o = ::Coopy::SimpleTable.new(0,0) if o == nil
  os = ::Coopy::Tables.new(o)
  td.hilite_with_nesting(os)
  render = ::Coopy::DiffRender.new
  render.render_tables(os).html
end

.get_blank_table(td, comp) ⇒ Object

protected - in ruby this doesn’t play well with static/inline methods



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# File 'lib/lib/coopy/coopy.rb', line 951

def Coopy.get_blank_table(td,comp)
  o = nil
  o = comp.a.create if comp.a != nil
  o = comp.b.create if o == nil && comp.b != nil
  o = ::Coopy::SimpleTable.new(0,0) if o == nil
  o
end

.jsonify(t) ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 1058

def Coopy.jsonify(t)
  workbook = {}
  sheet = Array.new
  w = t.get_width
  h = t.get_height
  txt = ""
  begin
    _g = 0
    while(_g < h) 
      y = _g
      _g+=1
      row = Array.new
      begin
        _g1 = 0
        while(_g1 < w) 
          x = _g1
          _g1+=1
          v = t.get_cell(x,y)
          row.push(v)
        end
      end
      sheet.push(row)
    end
  end
  workbook["sheet"] = sheet
  workbook
end

.keep_around ⇒ Object

protected - in ruby this doesn’t play well with static/inline methods



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# File 'lib/lib/coopy/coopy.rb', line 998

def Coopy.keep_around 
  st = ::Coopy::SimpleTable.new(1,1)
  v = ::Coopy::Viterbi.new
  td = ::Coopy::TableDiff.new(nil,nil)
  cf = ::Coopy::CompareFlags.new
  idx = ::Coopy::Index.new(cf)
  dr = ::Coopy::DiffRender.new
  hp = ::Coopy::HighlightPatch.new(nil,nil)
  csv = ::Coopy::Csv.new
  tm = ::Coopy::TableModifier.new(nil)
  sc = ::Coopy::SqlCompare.new(nil,nil,nil,nil)
  sq = ::Coopy::SqliteHelper.new
  sm = ::Coopy::SimpleMeta.new(nil)
  ct = ::Coopy::CombinedTable.new(nil)
  0
end

.main ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 1021

def Coopy.main 
  io = ::Coopy::TableIO.new
  coopy1 = ::Coopy::Coopy.new
  ret = coopy1.coopyhx(io)
  HxSys.exit(ret) if ret != 0
  ret
end

.patch(local, patch, flags = nil) ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 972

def Coopy.patch(local,patch,flags = nil)
  patcher = ::Coopy::HighlightPatch.new(::Coopy::Coopy.tablify(local),::Coopy::Coopy.tablify(patch))
  patcher.apply
end

.show(t) ⇒ Object

protected - in ruby this doesn’t play well with static/inline methods



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# File 'lib/lib/coopy/coopy.rb', line 1031

def Coopy.show(t)
  w = t.get_width
  h = t.get_height
  txt = ""
  begin
    _g = 0
    while(_g < h) 
      y = _g
      _g+=1
      begin
        _g1 = 0
        while(_g1 < w) 
          x = _g1
          _g1+=1
          begin
            s = t.get_cell(x,y)
            txt += s.to_s
          end
          txt += " "
        end
      end
      txt += "\n"
    end
  end
  puts txt
end

.tablify(data) ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 1088

def Coopy.tablify(data)
  return data if data == nil
  return data if data.respond_to? :get_cell_view
  ::Coopy::TableView.new(data)
end

Instance Method Details

#apply_renderer(name, renderer) ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 110

def apply_renderer(name,renderer)
  renderer.complete_html if !@fragment
  if @format_preference == "www" 
    @io.send_to_browser(renderer.html)
  else 
    self.save_text(name,renderer.html)
  end
  self.save_text(@css_output,renderer.sample_css) if @css_output != nil
  true
end

#check_format(name) ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 52

def check_format(name)
  return @format_preference if @extern_preference
  ext = ""
  if name != nil 
    pt = name.rindex(".",nil || 0) || -1
    if pt >= 0 
      begin
        _this = name[pt + 1..-1]
        ext = _this.downcase
      end
      case(ext)
      when "json"
        @format_preference = "json"
      when "ndjson"
        @format_preference = "ndjson"
      when "csv"
        @format_preference = "csv"
        @delim_preference = ","
      when "tsv"
        @format_preference = "csv"
        @delim_preference = "\t"
      when "ssv"
        @format_preference = "csv"
        @delim_preference = ";"
        @format_preference = "csv"
      when "psv"
        @format_preference = "csv"
        @delim_preference = [128169].pack("U")
      when "sqlite3"
        @format_preference = "sqlite"
      when "sqlite"
        @format_preference = "sqlite"
      when "html","htm"
        @format_preference = "html"
      when "www"
        @format_preference = "www"
      else
        ext = ""
      end
    end
  end
  @nested_output = @format_preference == "json" || @format_preference == "ndjson"
  @order_preference = !@nested_output
  ext
end

#command(io, cmd, args) ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 354

def command(io,cmd,args)
  r = 0
  r = io.command(cmd,args) if io.async
  if r != 999 
    io.write_stdout("$ " + _hx_str(cmd))
    begin
      _g = 0
      while(_g < args.length) 
        arg = args[_g]
        _g+=1
        io.write_stdout(" ")
        spaced = (arg.index(" ",nil || 0) || -1) >= 0
        io.write_stdout("\"") if spaced
        io.write_stdout(arg)
        io.write_stdout("\"") if spaced
      end
    end
    io.write_stdout("\n")
  end
  r = io.command(cmd,args) if !io.async
  r
end

#coopyhx(io) ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 904

def coopyhx(io)
  args = io.args
  return ::Coopy::Coopy.keep_around if args[0] == "--keep"
  self.run(args,io)
end

#encode_table(name, t, render = nil) ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 139

def encode_table(name,t,render = nil)
  self.set_format(@output_format) if @output_format != "copy"
  txt = ""
  self.check_format(name)
  @format_preference = "csv" if @format_preference == "sqlite" && !@extern_preference
  if render == nil 
    if @format_preference == "csv" 
      csv = ::Coopy::Csv.new(@delim_preference,@csv_eol_preference)
      txt = csv.render_table(t)
    elsif @format_preference == "ndjson" 
      txt = ::Coopy::Ndjson.new(t).render
    elsif @format_preference == "html" || @format_preference == "www" 
      self.render_table(name,t)
      return nil
    elsif @format_preference == "sqlite" 
      @io.write_stderr("! Cannot yet output to sqlite, aborting\n")
      return ""
    else 
      value = ::Coopy::Coopy.jsonify(t)
      txt = ::Haxe::Format::JsonPrinter._print(value,nil,"  ")
    end
  else 
    txt = render.render(t)
  end
  txt
end

#get_renderer ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 104

def get_renderer 
  renderer = ::Coopy::DiffRender.new
  renderer.use_pretty_arrows(@flags.use_glyphs)
  renderer
end

#init ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 33

def init 
  @extern_preference = false
  @format_preference = nil
  @delim_preference = nil
  @csv_eol_preference = nil
  @output_format = "copy"
  @output_format_set = false
  @nested_output = false
  @order_set = false
  @order_preference = false
  @strategy = nil
  @css_output = nil
  @fragment = false
  @flags = nil
  @cache_txt = nil
  @fail_if_diff = false
  @diffs_found = false
end

#install_git_driver(io, formats) ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 377

def install_git_driver(io,formats)
  r = 0
  if @status == nil 
    @status = {}
    @daff_cmd = ""
  end
  key = "hello"
  if !@status.include?(key) 
    io.write_stdout("Setting up git to use daff on")
    begin
      _g = 0
      while(_g < formats.length) 
        format = formats[_g]
        _g+=1
        io.write_stdout(" *." + _hx_str(format))
      end
    end
    io.write_stdout(" files\n")
    @status[key] = r
  end
  key = "can_run_git"
  if !@status.include?(key) 
    r = self.command(io,"git",["--version"])
    return r if r == 999
    @status[key] = r
    if r != 0 
      io.write_stderr("! Cannot run git, aborting\n")
      return 1
    end
    io.write_stdout("- Can run git\n")
  end
  daffs = ["daff","daff.rb","daff.py"]
  if @daff_cmd == "" 
    begin
      _g1 = 0
      while(_g1 < daffs.length) 
        daff = daffs[_g1]
        _g1+=1
        key1 = "can_run_" + _hx_str(daff)
        if !@status.include?(key1) 
          r = self.command(io,daff,["version"])
          return r if r == 999
          @status[key1] = r
          if r == 0 
            @daff_cmd = daff
            io.write_stdout("- Can run " + _hx_str(daff) + " as \"" + _hx_str(daff) + "\"\n")
            break
          end
        end
      end
    end
    if @daff_cmd == "" 
      io.write_stderr("! Cannot find daff, is it in your path?\n")
      return 1
    end
  end
  begin
    _g2 = 0
    while(_g2 < formats.length) 
      format1 = formats[_g2]
      _g2+=1
      key = "have_diff_driver_" + _hx_str(format1)
      if !@status.include?(key) 
        r = self.command(io,"git",["config","--global","--get","diff.daff-" + _hx_str(format1) + ".command"])
        return r if r == 999
        @status[key] = r
      end
      have_diff_driver = @status[key] == 0
      key = "add_diff_driver_" + _hx_str(format1)
      if !@status.include?(key) 
        r = self.command(io,"git",["config","--global","diff.daff-" + _hx_str(format1) + ".command",_hx_str(@daff_cmd) + " diff --git"])
        return r if r == 999
        io.write_stdout("- Cleared existing daff diff driver for " + _hx_str(format1) + "\n") if have_diff_driver
        io.write_stdout("- Added diff driver for " + _hx_str(format1) + "\n")
        @status[key] = r
      end
      key = "have_merge_driver_" + _hx_str(format1)
      if !@status.include?(key) 
        r = self.command(io,"git",["config","--global","--get","merge.daff-" + _hx_str(format1) + ".driver"])
        return r if r == 999
        @status[key] = r
      end
      have_merge_driver = @status[key] == 0
      key = "name_merge_driver_" + _hx_str(format1)
      if !@status.include?(key) 
        if !have_merge_driver 
          r = self.command(io,"git",["config","--global","merge.daff-" + _hx_str(format1) + ".name","daff tabular " + _hx_str(format1) + " merge"])
          return r if r == 999
        else 
          r = 0
        end
        @status[key] = r
      end
      key = "add_merge_driver_" + _hx_str(format1)
      if !@status.include?(key) 
        r = self.command(io,"git",["config","--global","merge.daff-" + _hx_str(format1) + ".driver",_hx_str(@daff_cmd) + " merge --output %A %O %A %B"])
        return r if r == 999
        io.write_stdout("- Cleared existing daff merge driver for " + _hx_str(format1) + "\n") if have_merge_driver
        io.write_stdout("- Added merge driver for " + _hx_str(format1) + "\n")
        @status[key] = r
      end
    end
  end
  if !io.exists(".git/config") 
    io.write_stderr("! This next part needs to happen in a git repository.\n")
    io.write_stderr("! Please run again from the root of a git repository.\n")
    return 1
  end
  attr = ".gitattributes"
  txt = ""
  post = ""
  if !io.exists(attr) 
    io.write_stdout("- No .gitattributes file\n")
  else 
    io.write_stdout("- You have a .gitattributes file\n")
    txt = io.get_content(attr)
  end
  need_update = false
  begin
    _g3 = 0
    while(_g3 < formats.length) 
      format2 = formats[_g3]
      _g3+=1
      if (txt.index("*." + _hx_str(format2),nil || 0) || -1) >= 0 
        io.write_stderr("- Your .gitattributes file already mentions *." + _hx_str(format2) + "\n")
      else 
        post += "*." + _hx_str(format2) + " diff=daff-" + _hx_str(format2) + "\n"
        post += "*." + _hx_str(format2) + " merge=daff-" + _hx_str(format2) + "\n"
        io.write_stdout("- Placing the following lines in .gitattributes:\n")
        io.write_stdout(post)
        txt += "\n" if txt != "" && !need_update
        txt += post
        need_update = true
      end
    end
  end
  io.save_content(attr,txt) if need_update
  io.write_stdout("- Done!\n")
  0
end

#json_to_table(json) ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 226

def json_to_table(json)
  output = nil
  begin
    _g = 0
    _g1 = Reflect.fields(json)
    while(_g < _g1.length) 
      name = _g1[_g]
      _g+=1
      t = Reflect.field(json,name)
      columns = Reflect.field(t,"columns")
      next if columns == nil
      rows = Reflect.field(t,"rows")
      next if rows == nil
      output = ::Coopy::SimpleTable.new(columns.length,rows.length)
      has_hash = false
      has_hash_known = false
      begin
        _g3 = 0
        _g2 = rows.length
        while(_g3 < _g2) 
          i = _g3
          _g3+=1
          row = rows[i]
          if !has_hash_known 
            has_hash = true if Reflect.fields(row).length == columns.length
            has_hash_known = true
          end
          if !has_hash 
            lst = row
            begin
              _g5 = 0
              _g4 = columns.length
              while(_g5 < _g4) 
                j = _g5
                _g5+=1
                val = lst[j]
                output.set_cell(j,i,::Coopy::Coopy.cell_for(val))
              end
            end
          else 
            _g51 = 0
            _g41 = columns.length
            while(_g51 < _g41) 
              j1 = _g51
              _g51+=1
              val1 = Reflect.field(row,columns[j1])
              output.set_cell(j1,i,::Coopy::Coopy.cell_for(val1))
            end
          end
        end
      end
    end
  end
  output.trim_blank if output != nil
  output
end

#json_to_tables(json) ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 220

def json_to_tables(json)
  tables = Reflect.field(json,"tables")
  return self.json_to_table(json) if tables == nil
  ::Coopy::JsonTables.new(json,@flags)
end

#load_table(name) ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 312

def load_table(name)
  ext = self.check_format(name)
  if ext == "sqlite" 
    sql = @io.open_sqlite_database(name)
    if sql == nil 
      @io.write_stderr("! Cannot open database, aborting\n")
      return nil
    end
    tab = ::Coopy::SqlTables.new(sql,@flags)
    return tab
  end
  txt = @io.get_content(name)
  if ext == "ndjson" 
    t = ::Coopy::SimpleTable.new(0,0)
    ndjson = ::Coopy::Ndjson.new(t)
    ndjson.parse(txt)
    return t
  end
  begin
    json = ::Haxe::Format::JsonParser.new(txt).parse_rec
    @format_preference = "json"
    t1 = self.json_to_tables(json)
    raise hx_raise("JSON failed") if t1 == nil
    return t1
  rescue => e
    e = hx_rescued(e)
    raise hx_raise(e) if ext == "json"
  end if ext == "json" || ext == ""
  @format_preference = "csv"
  csv = ::Coopy::Csv.new(@delim_preference)
  output = ::Coopy::SimpleTable.new(0,0)
  csv.parse_table(txt,output)
  @csv_eol_preference = csv.get_discovered_eol if @csv_eol_preference == nil
  output.trim_blank if output != nil
  output
end

#render_table(name, t) ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 121

def render_table(name,t)
  renderer = self.get_renderer
  renderer.render(t)
  self.apply_renderer(name,renderer)
end

#render_tables(name, t) ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 127

def render_tables(name,t)
  renderer = self.get_renderer
  renderer.render_tables(t)
  self.apply_renderer(name,renderer)
end

#run(args, io = nil) ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 520

def run(args,io = nil)
  io = ::Coopy::TableIO.new if io == nil
  if io == nil 
    puts "No system interface available"
    return 1
  end
  self.init
  @io = io
  more = true
  output = nil
  inplace = false
  git = false
  @flags = ::Coopy::CompareFlags.new
  @flags.always_show_header = true
  while(more) 
    more = false
    begin
      _g1 = 0
      _g = args.length
      while(_g1 < _g) 
        i = _g1
        _g1+=1
        tag = args[i]
        if tag == "--output" 
          more = true
          output = args[i + 1]
          args.slice!(i,2)
          break
        elsif tag == "--css" 
          more = true
          @fragment = true
          @css_output = args[i + 1]
          args.slice!(i,2)
          break
        elsif tag == "--fragment" 
          more = true
          @fragment = true
          args.slice!(i,1)
          break
        elsif tag == "--plain" 
          more = true
          @flags.use_glyphs = false
          args.slice!(i,1)
          break
        elsif tag == "--all" 
          more = true
          @flags.show_unchanged = true
          @flags.show_unchanged_columns = true
          args.slice!(i,1)
          break
        elsif tag == "--all-rows" 
          more = true
          @flags.show_unchanged = true
          args.slice!(i,1)
          break
        elsif tag == "--all-columns" 
          more = true
          @flags.show_unchanged_columns = true
          args.slice!(i,1)
          break
        elsif tag == "--act" 
          more = true
          @flags.acts = {} if @flags.acts == nil
          begin
            @flags.acts[args[i + 1]] = true
            true
          end
          args.slice!(i,2)
          break
        elsif tag == "--context" 
          more = true
          context = args[i + 1].to_i
          @flags.unchanged_context = context if context >= 0
          args.slice!(i,2)
          break
        elsif tag == "--inplace" 
          more = true
          inplace = true
          args.slice!(i,1)
          break
        elsif tag == "--git" 
          more = true
          git = true
          args.slice!(i,1)
          break
        elsif tag == "--unordered" 
          more = true
          @flags.ordered = false
          @flags.unchanged_context = 0
          @order_set = true
          args.slice!(i,1)
          break
        elsif tag == "--ordered" 
          more = true
          @flags.ordered = true
          @order_set = true
          args.slice!(i,1)
          break
        elsif tag == "--color" 
          more = true
          @flags.terminal_format = "ansi"
          args.slice!(i,1)
          break
        elsif tag == "--no-color" 
          more = true
          @flags.terminal_format = "plain"
          args.slice!(i,1)
          break
        elsif tag == "--input-format" 
          more = true
          self.set_format(args[i + 1])
          args.slice!(i,2)
          break
        elsif tag == "--output-format" 
          more = true
          @output_format = args[i + 1]
          @output_format_set = true
          args.slice!(i,2)
          break
        elsif tag == "--id" 
          more = true
          @flags.ids = Array.new if @flags.ids == nil
          @flags.ids.push(args[i + 1])
          args.slice!(i,2)
          break
        elsif tag == "--ignore" 
          more = true
          @flags.ignore_column(args[i + 1])
          args.slice!(i,2)
          break
        elsif tag == "--index" 
          more = true
          @flags.always_show_order = true
          @flags.never_show_order = false
          args.slice!(i,1)
          break
        elsif tag == "--www" 
          more = true
          @output_format = "www"
          @output_format_set = true
          args.slice!(i,1)
        elsif tag == "--table" 
          more = true
          @flags.add_table(args[i + 1])
          args.slice!(i,2)
          break
        elsif tag == "-w" || tag == "--ignore-whitespace" 
          more = true
          @flags.ignore_whitespace = true
          args.slice!(i,1)
          break
        elsif tag == "-i" || tag == "--ignore-case" 
          more = true
          @flags.ignore_case = true
          args.slice!(i,1)
          break
        elsif tag == "--padding" 
          more = true
          @flags.padding_strategy = args[i + 1]
          args.slice!(i,2)
          break
        elsif tag == "-e" || tag == "--eol" 
          more = true
          ending = args[i + 1]
          if ending == "crlf" 
            ending = "\r\n"
          elsif ending == "lf" 
            ending = "\n"
          elsif ending == "cr" 
            ending = "\r"
          elsif ending == "auto" 
            ending = nil
          else 
            io.write_stderr("Expected line ending of either 'crlf' or 'lf' but got " + _hx_str(ending) + "\n")
            return 1
          end
          @csv_eol_preference = ending
          args.slice!(i,2)
          break
        elsif tag == "--fail-if-diff" 
          more = true
          @fail_if_diff = true
          args.slice!(i,1)
          break
        end
      end
    end
  end
  cmd = args[0]
  ok = true
  begin
    if args.length < 2 
      if cmd == "version" 
        io.write_stdout(_hx_str(::Coopy::Coopy.version) + "\n")
        return 0
      end
      if cmd == "git" 
        io.write_stdout("You can use daff to improve git's handling of csv files, by using it as a\ndiff driver (for showing what has changed) and as a merge driver (for merging\nchanges between multiple versions).\n")
        io.write_stdout("\n")
        io.write_stdout("Automatic setup\n")
        io.write_stdout("---------------\n\n")
        io.write_stdout("Run:\n")
        io.write_stdout("  daff git csv\n")
        io.write_stdout("\n")
        io.write_stdout("Manual setup\n")
        io.write_stdout("------------\n\n")
        io.write_stdout("Create and add a file called .gitattributes in the root directory of your\nrepository, containing:\n\n")
        io.write_stdout("  *.csv diff=daff-csv\n")
        io.write_stdout("  *.csv merge=daff-csv\n")
        io.write_stdout("\nCreate a file called .gitconfig in your home directory (or alternatively\nopen .git/config for a particular repository) and add:\n\n")
        io.write_stdout("  [diff \"daff-csv\"]\n")
        io.write_stdout("  command = daff diff --git\n")
        io.write_stderr("\n")
        io.write_stdout("  [merge \"daff-csv\"]\n")
        io.write_stdout("  name = daff tabular merge\n")
        io.write_stdout("  driver = daff merge --output %A %O %A %B\n\n")
        io.write_stderr("Make sure you can run daff from the command-line as just \"daff\" - if not,\nreplace \"daff\" in the driver and command lines above with the correct way\nto call it. Add --no-color if your terminal does not support ANSI colors.")
        io.write_stderr("\n")
        return 0
      end
      if args.length < 1 
        io.write_stderr("daff can produce and apply tabular diffs.\n")
        io.write_stderr("Call as:\n")
        io.write_stderr("  daff [--color] [--no-color] [--output OUTPUT.csv] a.csv b.csv\n")
        io.write_stderr("  daff [--output OUTPUT.html] a.csv b.csv\n")
        io.write_stderr("  daff [--output OUTPUT.csv] parent.csv a.csv b.csv\n")
        io.write_stderr("  daff [--output OUTPUT.ndjson] a.ndjson b.ndjson\n")
        io.write_stderr("  daff [--www] a.csv b.csv\n")
        io.write_stderr("  daff patch [--inplace] [--output OUTPUT.csv] a.csv patch.csv\n")
        io.write_stderr("  daff merge [--inplace] [--output OUTPUT.csv] parent.csv a.csv b.csv\n")
        io.write_stderr("  daff trim [--output OUTPUT.csv] source.csv\n")
        io.write_stderr("  daff render [--output OUTPUT.html] diff.csv\n")
        io.write_stderr("  daff copy in.csv out.tsv\n")
        io.write_stderr("  daff in.csv\n")
        io.write_stderr("  daff git\n")
        io.write_stderr("  daff version\n")
        io.write_stderr("\n")
        io.write_stderr("The --inplace option to patch and merge will result in modification of a.csv.\n")
        io.write_stderr("\n")
        io.write_stderr("If you need more control, here is the full list of flags:\n")
        io.write_stderr("  daff diff [--output OUTPUT.csv] [--context NUM] [--all] [--act ACT] a.csv b.csv\n")
        io.write_stderr("     --act ACT:     show only a certain kind of change (update, insert, delete)\n")
        io.write_stderr("     --all:         do not prune unchanged rows or columns\n")
        io.write_stderr("     --all-rows:    do not prune unchanged rows\n")
        io.write_stderr("     --all-columns: do not prune unchanged columns\n")
        io.write_stderr("     --color:       highlight changes with terminal colors (default in terminals)\n")
        io.write_stderr("     --context NUM: show NUM rows of context\n")
        io.write_stderr("     --fail-if-diff: return status is 0 if equal, 1 if different, 2 if problem\n")
        io.write_stderr("     --id:          specify column to use as primary key (repeat for multi-column key)\n")
        io.write_stderr("     --ignore:      specify column to ignore completely (can repeat)\n")
        io.write_stderr("     --index:       include row/columns numbers from original tables\n")
        io.write_stderr("     --input-format [csv|tsv|ssv|psv|json]: set format to expect for input\n")
        io.write_stderr("     --eol [crlf|lf|cr|auto]: separator between rows of csv output.\n")
        io.write_stderr("     --no-color:    make sure terminal colors are not used\n")
        io.write_stderr("     --ordered:     assume row order is meaningful (default for CSV)\n")
        io.write_stderr("     --output-format [csv|tsv|ssv|psv|json|copy|html]: set format for output\n")
        io.write_stderr("     --padding [dense|sparse|smart]: set padding method for aligning columns\n")
        io.write_stderr("     --table NAME:  compare the named table, used with SQL sources\n")
        io.write_stderr("     --unordered:   assume row order is meaningless (default for json formats)\n")
        io.write_stderr("     -w / --ignore-whitespace: ignore changes in leading/trailing whitespace\n")
        io.write_stderr("     -i / --ignore-case: ignore differences in case\n")
        io.write_stderr("\n")
        io.write_stderr("  daff render [--output OUTPUT.html] [--css CSS.css] [--fragment] [--plain] diff.csv\n")
        io.write_stderr("     --css CSS.css: generate a suitable css file to go with the html\n")
        io.write_stderr("     --fragment:    generate just a html fragment rather than a page\n")
        io.write_stderr("     --plain:       do not use fancy utf8 characters to make arrows prettier\n")
        io.write_stderr("     --www:         send output to a browser\n")
        return 1
      end
    end
    cmd1 = args[0]
    offset = 1
    if !Lambda.has(["diff","patch","merge","trim","render","git","version","copy"],cmd1) 
      if (cmd1.index("--",nil || 0) || -1) == 0 
        cmd1 = "diff"
        offset = 0
      elsif (cmd1.index(".",nil || 0) || -1) != -1 
        if args.length == 2 
          cmd1 = "diff"
          offset = 0
        elsif args.length == 1 
          cmd1 = "copy"
          offset = 0
        end
      end
    end
    if cmd1 == "git" 
      types = args.slice!(offset,args.length - offset)
      return self.install_git_driver(io,types)
    end
    if git 
      ct = args.length - offset
      if ct != 7 && ct != 9 
        io.write_stderr("Expected 7 or 9 parameters from git, but got " + _hx_str(ct) + "\n")
        return 1
      end
      git_args = args.slice!(offset,ct)
      args.slice!(0,args.length)
      offset = 0
      old_display_path = git_args[0]
      new_display_path = git_args[0]
      old_file = git_args[1]
      new_file = git_args[4]
      if ct == 9 
        io.write_stdout(git_args[8])
        new_display_path = git_args[7]
      end
      io.write_stdout("--- a/" + _hx_str(old_display_path) + "\n")
      io.write_stdout("+++ b/" + _hx_str(new_display_path) + "\n")
      args.push(old_file)
      args.push(new_file)
    end
    parent = nil
    if args.length - offset >= 3 
      parent = self.load_table(args[offset])
      offset+=1
    end
    aname = args[offset]
    a = self.load_table(aname)
    b = nil
    if args.length - offset >= 2 
      if cmd1 != "copy" 
        b = self.load_table(args[1 + offset])
      else 
        output = args[1 + offset]
      end
    end
    @flags.diff_strategy = @strategy
    if inplace 
      io.write_stderr("Please do not use --inplace when specifying an output.\n") if output != nil
      output = aname
      return 1
    end
    output = "-" if output == nil
    if cmd1 == "diff" 
      if !@order_set 
        @flags.ordered = @order_preference
        @flags.unchanged_context = 0 if !@flags.ordered
      end
      @flags.allow_nested_cells = @nested_output
      if @fail_if_diff 
        begin
          self.run_diff(parent,a,b,@flags,output)
        rescue => e
          e = hx_rescued(e)
          return 2
        end
        return 1 if @diffs_found
      else 
        self.run_diff(parent,a,b,@flags,output)
      end
    elsif cmd1 == "patch" 
      patcher = ::Coopy::HighlightPatch.new(a,b)
      patcher.apply
      self.save_table(output,a)
    elsif cmd1 == "merge" 
      merger = ::Coopy::Merger.new(parent,a,b,@flags)
      conflicts = merger.apply
      ok = conflicts == 0
      io.write_stderr(_hx_str(conflicts) + " conflict" + _hx_str((((conflicts > 1) ? "s" : ""))) + "\n") if conflicts > 0
      self.save_table(output,a)
    elsif cmd1 == "trim" 
      self.save_table(output,a)
    elsif cmd1 == "render" 
      self.render_table(output,a)
    elsif cmd1 == "copy" 
      os = ::Coopy::Tables.new(a)
      os.add("untitled")
      self.save_tables(output,os,self.use_color(@flags,output),false)
    end
  rescue => e1
    e1 = hx_rescued(e1)
    raise hx_raise(e1) if !@fail_if_diff
    return 2
  end
  if ok 
    return 0
  elsif @fail_if_diff 
    return 2
  else 
    return 1
  end
end

#run_diff(parent, a, b, flags, output) ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 295

def run_diff(parent,a,b,flags,output)
  ct = ::Coopy::Coopy.compare_tables3(parent,a,b,flags)
  align = ct.align
  td = ::Coopy::TableDiff.new(align,flags)
  o = ::Coopy::SimpleTable.new(0,0)
  os = ::Coopy::Tables.new(o)
  td.hilite_with_nesting(os)
  use_color = self.use_color(flags,output)
  self.save_tables(output,os,use_color,true)
  if @fail_if_diff 
    summary = td.get_summary
    @diffs_found = true if summary.different
  end
end

#save_table(name, t, render = nil) ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 133

def save_table(name,t,render = nil)
  txt = self.encode_table(name,t,render)
  return true if txt == nil
  self.save_text(name,txt)
end

#save_tables(name, os, use_color, is_diff) ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 166

def save_tables(name,os,use_color,is_diff)
  self.set_format(@output_format) if @output_format != "copy"
  txt = ""
  self.check_format(name)
  render = nil
  render = ::Coopy::TerminalDiffRender.new(@flags,@delim_preference,is_diff) if use_color
  order = os.get_order
  return self.save_table(name,os.one,render) if order.length == 1
  return self.render_tables(name,os) if @format_preference == "html" || @format_preference == "www"
  need_blank = false
  if order.length == 0 || os.has_ins_del 
    txt += self.encode_table(name,os.one,render)
    need_blank = true
  end
  if order.length > 1 
    _g1 = 1
    _g = order.length
    while(_g1 < _g) 
      i = _g1
      _g1+=1
      t = os.get(order[i])
      if t != nil 
        txt += "\n" if need_blank
        need_blank = true
        txt += _hx_str(order[i]) + "\n"
        line = ""
        begin
          _g3 = 0
          _g2 = order[i].length
          while(_g3 < _g2) 
            i1 = _g3
            _g3+=1
            line += "="
          end
        end
        txt += _hx_str(line) + "\n"
        txt += self.encode_table(name,os.get(order[i]),render)
      end
    end
  end
  self.save_text(name,txt)
end

#save_text(name, txt) ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 209

def save_text(name,txt)
  if name == nil 
    @cache_txt += txt
  elsif name != "-" 
    @io.save_content(name,txt)
  else 
    @io.write_stdout(txt)
  end
  true
end

#set_format(name) ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 98

def set_format(name)
  @extern_preference = false
  self.check_format("." + _hx_str(name))
  @extern_preference = true
end

#use_color(flags, output) ⇒ Object 



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# File 'lib/lib/coopy/coopy.rb', line 283

def use_color(flags,output)
  use_color = flags.terminal_format == "ansi"
  if flags.terminal_format == nil 
    if (output == nil || output == "-") && (@output_format == "copy" || @output_format == "csv" || @output_format == "psv") 
      if @io != nil 
        use_color = @io.is_tty if @io.is_tty_known
      end
    end
  end
  use_color
end