Class: Dyndoc::RServer

Inherits:
Object
  • Object
show all
Defined in:
lib/dyndoc/base/filter/server.rb

Constant Summary collapse

@@mode =

or :capture_protected or capture_normal or capture_local

:capture_cqls
@@out = 
[]

Class Method Summary collapse

Class Method Details

.code_envir(code, env = "Global") ⇒ Object 



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# File 'lib/dyndoc/base/filter/server.rb', line 726

def RServer.code_envir(code,env="Global")
  "evalq({"+code+"},.GlobalEnv$.env4dyn$#{env})"
end

.device(dev = "pdf") ⇒ Object 



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# File 'lib/dyndoc/base/filter/server.rb', line 409

def RServer.device(dev="pdf")
  case dev
  when "pdf"
      @@device_cmd,@@device="pdf","pdf" #(%{capabilities()["cairo"]}.to_R ? "cairo_pdf" : "pdf"),"pdf"
  when "png"
    @@device_cmd,@@device="png","png"
  end
end

.echo(block, env = "Global", prompt = "") ⇒ Object 



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# File 'lib/dyndoc/base/filter/server.rb', line 231

def RServer.echo(block,env="Global",prompt="")
  Utils.clean_eol(block)
  txtout=""
  optout=nil #options for the output
  hide=0
  passe=0
  opt = nil
  code=""
  ##Dyndoc.warn "block",block
  block.each_line{|l|
    l2=l.chomp
    inst=l2.delete(" ").split("|")[0]
    if inst
inst=inst.split(":")
## number of lines to apply
nb = 1 #default
nb=inst[1].to_i if inst.length>1
## instr to exec
inst=inst[0].downcase
    else
inst="line"
    end
    ## options
    opt=l2.split("|")
    if opt.length>1
opt2=opt[1..-1]
## of the form key=value like Hash
opt2.map!{|elt| elt.split("=")}
opt={}
opt2.each{|elt| opt[elt[0].downcase.delete(" ")]=elt[1]}
    else
opt=nil
    end
    case inst
    when "line"
txtout << "\n"
    when "##!eval"
passe= nb.to_i #this is a copy
    when "##out"
optout=opt
    when "##hide"
hide = nb.to_i
    else
      txtout=txtout.force_encoding("utf-8")
txtout << ( code.length==0 ? prompt+"> " : "+ ") << l2 << "\n" if hide==0
if passe==0 and l2[0,1]!="#"
  ## redirect R output
  code << l << "\n" ##ajout de "\n" grace à Pierre (le 15/12/05) pour bug: "1:10 #toto" -> pas de sortie car parse erreur n2!!!
      case @@mode
     when :capture_normal
      evalOk=(R4rb <<  ".output<<-capture.output({"+RServer.code_envir(code,env)+"})")
     when :capture_cqls
      evalOk=(R4rb <<  ".output<<-capture.output.cqls({"+RServer.code_envir(code,env)+"})")
     end

  ##Dyndoc.warn "evalOk",code,evalOk
  if evalOk
   txt=(@@out < '.output' ) ##.join("\n").split(/\n/)
   code=""
  else
    txt=@@out=[]
  end
  if optout and optout.keys.include? "short"
    short=optout["short"].split(",")
    short[0]=short[0].to_i
    short[2]=short[2].to_i
    ## Dyndoc.warn "short",[short,txt]
    (0...short[0]).each{|i| txtout << (txt[i] ? txt[i].force_encoding("utf-8") : "") << "\n"}
    txtout << short[1] << "\n"
    le = txt.length
    ((le-short[2])...le).each{|i| txtout << (txt[i] ? txt[i].force_encoding("utf-8") : "") << "\n"}
  else
    txt=txt.map{|e| e.force_encoding("utf-8")}
    txtout << txt.join("\n")
    txtout += "\n" if @@out.length>0
    ##txt.each{|l| txtout << l <<"\n"}
  end
end
optout=nil
hide -= 1 if hide>0
passe -=1 if passe>0
    end
  }
  return txtout
end

.echo_blocks(block, prompt = {:normal=>'> ',:continue=>'+ '}, env = "Global") ⇒ Object 



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# File 'lib/dyndoc/base/filter/server.rb', line 317

def RServer.echo_blocks(block,prompt={:normal=>'> ',:continue=>'+ '},env="Global")
  Utils.clean_eol(block)
  inputs,outputs=[],[]
  input,output="",""
  optout=nil #options for the output
  hide=0
  passe=0
  opt = nil
  code=""
    block.each_line{|l|
    l2=l.chomp
    inst=l2.delete(" ").split("|")[0]
    if inst
    inst=inst.split(":")
    ## number of lines to apply
    nb = 1 #default
    nb=inst[1].to_i if inst.length>1
    ## instr to exec
    inst=inst[0].downcase
  else
    inst="line"
  end
  ## options
  opt=l2.split("|")
  if opt.length>1
    opt2=opt[1..-1]
    ## of the form key=value like Hash
    opt2.map!{|elt| elt.split("=")}
    opt={}
    opt2.each{|elt| opt[elt[0].downcase.delete(" ")]=elt[1]}
  else
    opt=nil
  end
  case inst
  when "##!eval"
    passe= nb.to_i #this is a copy
  when "##out"
    optout=opt
  when "##hide"
    hide = nb.to_i
  else
    if hide==0
 input << ( code.length==0 ? prompt[:normal] : prompt[:continue]) if prompt
 input <<  l2 << "\n"
    end
    if passe==0 and l2[0,1]!="#"
 ## redirect R output
 code << l << "\n" ##ajout de "\n" grace à Pierre (le 15/12/05) pour bug: "1:10 #toto" -> pas de sortie car parse erreur n2!!!
 evalOk=(R4rb <<  ".output<<-capture.output({"+RServer.code_envir(code,env)+"})")
 if evalOk
  txt=(@@out < '.output' ) ##.join("\n").split(/\n/)
  code=""
 else
   txt=@@out=[]
 end
 if optout and optout.keys.include? "short"
   short=optout["short"].split(",")
   short[0]=short[0].to_i
   short[2]=short[2].to_i
   (0...short[0]).each{|i| output << txt[i] << "\n"}
   output << short[1] << "\n"
   le = txt.length
   ((le-short[2])...le).each{|i| output << txt[i] << "\n"}
 else
   output << txt.join("\n")
   output += "\n" if @@out.length>0
 end
 inputs << input
 outputs << output.gsub(/^[\n]*/,"")
 input,output="",""
    end
    optout=nil
    hide -= 1 if hide>0
    passe -=1 if passe>0
  end
  }
  return {:in=>inputs,:out=>outputs}
end

.echo_verb(txt, mode, env = "Global", opts = {prompt: ""}) ⇒ Object 



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# File 'lib/dyndoc/base/filter/server.rb', line 220

def RServer.echo_verb(txt,mode,env="Global",opts={prompt: ""})
  txtout=Dyndoc::RServer.echo(txt,env,opts[:prompt]).strip
  mode=:default unless Dyndoc::VERB.keys.include? mode
  header= (mode!=:default) and txtout.length>0
  out=""
  out << Dyndoc::VERB[mode][:begin] << "\n" if header
  out << txtout
  out << "\n" << Dyndoc::VERB[mode][:end] << "\n" if header
  out
end

.eval_envir(code, env = "Global") ⇒ Object 



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# File 'lib/dyndoc/base/filter/server.rb', line 730

def RServer.eval_envir(code,env="Global")
  #R4rb << "evalq({"+code+"},.GlobalEnv$.env4dyn$#{env})" ##-> replaced by
  R4rb << RServer.code_envir(code,env)
end

.exist?(env) ⇒ Boolean 



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# File 'lib/dyndoc/base/filter/server.rb', line 711

def RServer.exist?(env)
#puts "Rserver.exist? .env4dyn"
#"print(ls(.GlobalEnv$.env4dyn))".to_R
  "\"#{env}\" %in% ls(.GlobalEnv$.env4dyn)".to_R
end

.filter(str) ⇒ Object 



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# File 'lib/dyndoc/base/filter/server.rb', line 692

def RServer.filter(str)
  ## modified (28/5/04) (old : /\#R\{.+\}/ => {\#R{ok}} does not work since "ok}" was selected !!
  res=str.gsub(/\\?(?i:\#|\:)[rR]#{@@start}[^#{@@stop}]+#{@@stop}/) {|w|
   if w[0,1]=="\\"
     w[1..-1]
   else
     code=w[3..-2] #the key
      RServer.output(code,w[1,1]=="r")
   end
  }
  res
end

.find_envir(code, env) ⇒ Object 



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# File 'lib/dyndoc/base/filter/server.rb', line 735

def RServer.find_envir(code,env)
#p code
#p env
  codeSaved=code.clone
  code2=code.split(/(\s*[\w\.\_]*\s*:)/)
#p code2
  if code2[0] and code2[0].empty?
    env=code2[1][0...-1].strip
    code=code2[2..-1].join("")
  end
  env2=env.clone
  env=Dyndoc.vars[env+".Renvir"] unless RServer.exist?(env)
  unless RServer.exist?(env)
    Dyndoc.warn "Warning! environment #{env2} does not exist!"
    code=codeSaved
    env="Global"
  end
  return [code,env]
end

.formatInput(out) ⇒ Object 



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# File 'lib/dyndoc/base/filter/server.rb', line 673

def RServer.formatInput(out)
  out2=out.gsub(/\\n/,'\textbackslash{n}')
  ## {\texttildelow}
  # unless out2=~/\\\w*\{.*\}/
  #   out2.gsub("{",'\{').gsub("}",'\}')
  # else
  #   out2
  # end
  #Dyndoc.warn :formatInput, [out,out2]
  out2,out3=out2.split("#") unless out2.empty?
  #Dyndoc.warn :formatInput2, [out,out2,out3]
  out2=out2.gsub(/(?<!\\textbackslash)\{/,'\{').gsub(/(?<!\\textbackslash\{n)\}/,'\}')
  #Dyndoc.warn :formatInput3, [out,out2]
  out2=out2+"#"+out3 if out3
  #Dyndoc.warn :formatInput4, [out,out2,out3]
  return out2.gsub("~",'\boldmath\ensuremath{\mathtt{\sim}}')
end

.formatOutput(out) ⇒ Object 



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# File 'lib/dyndoc/base/filter/server.rb', line 668

def RServer.formatOutput(out)
  #out2=out.gsub(/\\n/,'\textbackslash{n}')
  out.gsub("{",'\{').gsub("}",'\}').gsub("~",'\boldmath\ensuremath{\mathtt{\sim}}')
end

.init_envir ⇒ Object 



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# File 'lib/dyndoc/base/filter/server.rb', line 705

def RServer.init_envir
    ##Dyndoc.warn "Rserver.init_envir!!!",Rserve.client
      "if(!exists(\".env4dyn\",envir=.GlobalEnv)) {.GlobalEnv$.env4dyn<-new.env(parent=.GlobalEnv);.GlobalEnv$.env4dyn$Global<-.GlobalEnv}".to_R
    ##Dyndoc.warn "Global?",RServer.exist?("Global")
end

.init_filter ⇒ Object 



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# File 'lib/dyndoc/base/filter/server.rb', line 807

def RServer.init_filter
  dyndocTools="~/dyndoc" #Same as DYNDOCROOT as default
  # DYNDOCTOOLS is possibly defined inside the launcher of DyndocStudio (Mac and linux).
  dyndocTools=ENV["DYNDOCTOOLS"] if ENV["DYNDOCTOOLS"] and File.exists? ENV["DYNDOCTOOLS"]
  ## if RUBY_ENGINE (ruby,jruby,rbx) defined (actually, not defined for 1.8.7)
  if Object.constants.map{|e| e.to_s}.include? "RUBY_ENGINE"
    version = RbConfig::CONFIG["exec_prefix"].split(File::Separator)[-1]
    R4rb << ".libPaths('"+dyndocTools+"/R/library/"+RUBY_ENGINE+"/"+version+"')"
    R4rb << "print(.libPaths())"
  end
  R4rb << "if(!(Sys.getenv('R_LIBS_USER') %in% .libPaths())) .libPaths(Sys.getenv('R_LIBS_USER'))"
  ## R4rb << "require(dyndoc)" => put in TemplateManager.initR dyndocTools.R
  R4rb << "require(rb4R)"
end

.inputsAndOutputs(block, id = "", optRDevice = "", prompt = {:normal=>'',:continue=>''}, env = "Global") ⇒ Object

def RServer.input_semi_colon(block)

block.map{|e| e.chomp!;((e.include? ";") ? (ee=e.split(";");["##!eval",e,"##hide:#{ee.length}"]+ee) : e )}.compact.join("\n")

end



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# File 'lib/dyndoc/base/filter/server.rb', line 422

def RServer.inputsAndOutputs(block,id="",optRDevice="",prompt={:normal=>'',:continue=>''},env="Global")
  Utils.clean_eol(block)
  envLoc=env
  optRDevice=(@@device=="png" ? "width=10,height=10,units=\"cm\",res=128" : "width=5,height=5,onefile=FALSE") if optRDevice.empty?
  ##R4rb << "require(dyndoc)" if @@mode==:capture_cqls
  results=[]
  input,output="",""
  optout,optpasse=nil,nil #options for the output
  hide,passe,passeNb=0,0,0
  echo,echoLines=0,[]
  opt = nil
  code=""
  # add R device
  imgdir=($dyn_rsrc ? File.join($dyn_rsrc,"img") : "/tmp/Rserver-img"+rand(1000000).to_s)

  imgfile=File.join(imgdir,"tmpImgFile"+id.to_s+"-")
  cptImg=0
  imgCopy=[]

  FileUtils.mkdir_p imgdir unless File.directory? imgdir
  Dir[imgfile+"*"].each{|f| FileUtils.rm_f(f)}
#p Dir[imgfile+"*"]


  #Dyndoc.warn "fig command:", "#{@@device_cmd}(\"#{imgfile}%d.#{@@device}\",#{optRDevice})"
  R4rb << "#{@@device_cmd}(\"#{imgfile}%d.#{@@device}\",#{optRDevice})"
  #block=RServer.input_semi_colon(block)
  # the following  is equivalent to each_line!
  block.each_line{|l|
   l2=l.chomp
   #Dyndoc.warn :l2,l2
   inst=l2.delete(" ").split("|")[0]
   #Dyndoc.warn "inst",inst
   if inst and inst[0,2]=="##"
     #if inst
       inst=inst.split(":")
       ## number of lines to apply
       nb = 1 #default
       nb=inst[1].to_i if inst.length>1
       ## instr to exec
       inst=inst[0].downcase
     #else
     #  inst="line"
     #end
     ## options
     opt=l2.split("|")
     if opt.length>1
       opt2=opt[1..-1]
       ## of the form key=value like Hash
       opt2.map!{|elt| elt.split("=")}
       #p opt2
       opt={}
       opt2.each{|elt| opt[elt[0].downcase.delete(" ")]=elt[1..-1].join("=")}
     else
       opt=nil
     end
     #Dyndoc.warn "opt",opt
   else
     inst="line"
     opt=nil
   end

    if echo>0
      echo -= 1
      echoLines << l2
      next
    end

    if echo==0 and !echoLines.empty? and !results.empty?
      results[-1][:output] << "\n" unless results[-1][:output].empty?
      results[-1][:output]  << echoLines.join("\n")
      echoLines=[]
   end

#Dyndoc.warn :inst, inst
   case inst
   when "##echo" ##need to be added
     echo=nb.to_i
   when "##!eval"
     passe= nb.to_i #this is a copy
        passeNb=nb.to_i #to remember the original nb
     optpasse=opt
   when "##out"
     optout=opt
   when "##hide"
     hide = nb.to_i
     #Dyndoc.warn :hide,hide
   when "##fig"
     if opt and opt["img"] and !opt["img"].empty?
       imgName=File.basename(opt["img"].strip,".*")
       imgName+=".#{@@device}" #unless imgName=~/\.#{@@device}$/
       imgName=File.join(imgdir,imgName)

       imgCopy << {:in => imgfile+cptImg.to_s+".#{@@device}",:out=>imgName}
       opt.delete("img")
     else
       imgName=imgfile+cptImg.to_s+".#{@@device}"
     end
     puts "DYN ERROR!!! no fig allowed after empty R output!!!" unless results[-1]
     results[-1][:img]={:name=>imgName}
     results[-1][:img][:opt]=opt if opt and !opt.empty?
     #could not copy file now!!!!
   when "##add"
     results[-1][:add]=opt
   else
    #Dyndoc.warn :hide?, [hide,passe,@@mode]
     if hide==0
       promptMode=(code.length==0 ? :normal : :continue )
       input << prompt[promptMode] if prompt
       #puts "before";p l;p envLoc
       l2,envLoc=RServer.find_envir(l2,envLoc)
       #Dyndoc.warn "after",l,envLoc
       input <<  l2 << "\n"
       #Dyndoc.warn :input3, input
     end
     if passe==0 and l2[0,1]!="#"
       ## redirect R output
       code << l2 << "\n" ##ajout de "\n" grace à Pierre (le 15/12/05) pour bug: "1:10 #toto" -> pas de sortie car parse erreur n2!!!
       case @@mode
       when :capture_cqls
         ##TODO: instead of only splitting check that there is no
         ## or ask the user to use another character instead of ";" printed as is in the input!
         codes=code.split(";")
         #Dyndoc.warn :codes, codes
         evalOk=(R4rb << ".output <<- ''")
         codes.each{|cod|
           evalOk &= (R4rb <<  (tmp=".output <<- c(.output,capture.output.cqls({"+RServer.code_envir(cod,envLoc)+"}))"))
           #Dyndoc.warn "tmp",tmp
         }
          when :capture_protected
         ##TODO: instead of only splitting check that there is no
         ## or ask the user to use another character instead of ";" printed as is in the input!
         codes=code.split(";")
         evalOk=(R4rb << ".output <<- ''")
         codes.each{|cod|
           evalOk &= (R4rb <<  (tmp=".output <<- c(.output,capture.output.protected({"+RServer.code_envir(cod,envLoc)+"}))"))
           #Dyndoc.warn "tmp",tmp
         }
       when :capture_normal
         codes=code.split(";")
         evalOk=(R4rb << ".output <<- ''")
         codes.each{|cod|
           evalOk &= (R4rb <<  (tmp=".output <<- c(.output,capture.output({"+RServer.code_envir(cod,envLoc)+"}))"))
         }
       when :sink #Ne marche pas à cause du sink!!!
         evalOk=(R4rb << (tmp=%{
           zz <- textConnection(".output", "w")
           sink(zz)
           local({
             #{code}
           },.GlobalEnv$.env4dyn$#{envLoc}
           )
            sink()
            close(zz)
            print(.output)
            }))
            #Dyndoc.warn "tmp",tmp
          when :capture_local
            codes=code.split(";")
            evalOk=(R4rb << ".output <<- ''")
         codes.each{|cod|
            cod=".output <<- c(.output,capture.output({local({"+cod+"},.GlobalEnv$.env4dyn$#{envLoc})}))"
            #Dyndoc.warn cod
           evalOk &= (R4rb << cod )
         }
       end
       cptImg += 1 if File.exists? imgfile+(cptImg+1).to_s+".#{@@device}"
       #p evalOk;p code;R4rb << "print(geterrmessage())";R4rb << "if(exists(\".output\") ) print(.output)"
       if evalOk
         txt=(@@out < '.output' ) ##.join("\n").split(/\n/)
         code=""
       else
         txt=@@out=[]
       end
       if optout and optout.keys.include? "short"
         short=optout["short"].split(",")
         short[0]=short[0].to_i
         short[2]=short[2].to_i
         (0...short[0]).each{|i| output << txt[i] << "\n"}
         output << short[1] << "\n"
         le = txt.length
         ((le-short[2])...le).each{|i| output << txt[i] << "\n"}
       else
         output << txt.join("\n")
         output += "\n" if @@out.length>0
       end
       #Dyndoc.warn :inputAndOutput,[input,output]

       input=RServer.formatInput(input).force_encoding("utf-8")
       #Dyndoc.warn :input,[input,output]
       output=RServer.formatOutput(output).force_encoding("utf-8")
       #Dyndoc.warn :output2,[input,output]
       #Dyndoc.warn :state, {:hide=>hide,:passe=>passe}
       #if hide==0
         result={}
         result[:input]= (hide==0 ? input : "")
         result[:prompt]= (hide==0 ? promptMode : :none)
         result[:output]=output.gsub(/^[\n]*/,"")
         results << result unless (result[:input]+result[:output]).empty?
       #end
       input,output="",""

     end
     if passe==0 and l2[0,1]=="#"
       result={}
       result[:input]=RServer.formatInput(input).force_encoding("utf-8")
       result[:prompt]=promptMode
       result[:output]=""
       results << result
       input,output="",""
     end
     if passe>=1
       result={}
       result[:input]=RServer.formatInput(input).force_encoding("utf-8")
       result[:prompt]= ( passe == passeNb ? :normal : :continue )#promptMode
       result[:output]= ((optpasse and optpasse["print"]) ? optpasse["print"] : output)
       #Dyndoc.warn :result,result
       results << result
       input,output="",""
     end
     optout=nil
     hide -= 1 if hide>0
     passe -=1 if passe>0
     #Dyndoc.warn :hide2,hide
   end
  }
  R4rb << "dev.off()"
  imgCopy.each{|e|
   FileUtils.mkdir_p File.dirname(e[:out]) unless File.exist? File.dirname(e[:out])
   if File.exists? e[:in]
     FileUtils.mv(e[:in],e[:out])
   else
     Dyndoc.warn "WARNING! #{e[:in]} does not exists for #{e[:out]}"
     Dyndoc.warn "RServer:imgCopy",imgCopy
        Dyndoc.warn "imgDir",Dir[imgdir+"/*"]
   end
  }
  #TODO: remove all the file newly created!
  #Dyndoc.warn :results, results
  return results
end

.local_code_envir(code, env = "Global") ⇒ Object 



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# File 'lib/dyndoc/base/filter/server.rb', line 722

def RServer.local_code_envir(code,env="Global")
  "local({"+code+"},.GlobalEnv$.env4dyn$#{env})"
end

.mode ⇒ Object 



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# File 'lib/dyndoc/base/filter/server.rb', line 403

def RServer.mode
  @@mode
end

.mode=(val) ⇒ Object 



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# File 'lib/dyndoc/base/filter/server.rb', line 399

def RServer.mode=(val)
  @@mode= val
end

.new_envir(env, parent = "Global") ⇒ Object 



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# File 'lib/dyndoc/base/filter/server.rb', line 717

def RServer.new_envir(env,parent="Global")
#puts "New env #{env} in #{parent}"
  ".GlobalEnv$.env4dyn$#{env}<-new.env(parent=.GlobalEnv$.env4dyn$#{parent})".to_R
end

.output(code, env = "Global", pretty = nil) ⇒ Object 



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# File 'lib/dyndoc/base/filter/server.rb', line 755

def RServer.output(code,env="Global",pretty=nil)
    code,env=RServer.find_envir(code,env)
    code="{"+code+"}"
#Dyndoc.warn "RServer.output",code
#Dyndoc.warn "without",code,(@@out < "evalq("+code+",.env4dyn$"+env+")"),"done"
    code="prettyNum("+code+")" if pretty
#Dyndoc.warn "with",code,(@@out < "evalq("+code+",.env4dyn$"+env+")"),"done"

    ## code="evalq("+code+",envir=.GlobalEnv$.env4dyn$"+env+")" ##-> replaced by
    code=RServer.code_envir(code,env)
#Dyndoc.warn "RServer.output->",code,(@@out < code)
    (@@out < code) #.join(', ')
end

.R4rb(mode, cli = nil) ⇒ Object

mode= :R2rb or Rserve



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# File 'lib/dyndoc/base/filter/server.rb', line 203

def RServer.R4rb(mode,cli=nil) #mode= :R2rb or Rserve
  return unless [:R2rb,:Rserve].include? mode
  require 'R4rb'
  ##puts "Rserver.R4rb: mode=#{mode}"
  Object.module_eval("R4rb_is #{mode}")
  ##puts "Rserver.R4rb: R4rb";p Object.const_get(:R4rb)
  R4rb.init
  Rserve.client(cli) if cli
  ##puts "Rserve.cli";p Rserve.cli
end

.rout(code, env = "Global") ⇒ Object

more useful than echo_tex!!!



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# File 'lib/dyndoc/base/filter/server.rb', line 798

def RServer.rout(code,env="Global")
    out="> "+code
    code="capture.output({"+code+"})"
    ## code="evalq("+code+",.GlobalEnv$.env4dyn$"+env+")" ##-> replaced by
    code=RServer.code_envir(code,env)
    #puts "Rserver.rout";p code
    return (@@out< code).join("\n")
end

.safe_output(code, env = "Global", opts = {}) ⇒ Object

pretty=nil,capture=nil)



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# File 'lib/dyndoc/base/filter/server.rb', line 769

def RServer.safe_output(code,env="Global",opts={}) #pretty=nil,capture=nil)
#Dyndoc.warn "opts",opts
    code,env=RServer.find_envir(code,env)
    invisible=code.split("\n")[-1].strip =~ /^print\s*\(/
    code="{"+code+"}"
#Dyndoc.warn "RServer.output",code
#Dyndoc.warn "without",code,(@@out < "evalq("+code+",.env4dyn$"+env+")"),"done"
    code="prettyNum("+code+")" if opts[:pretty]
#Dyndoc.warn "with",code,(@@out < "evalq("+code+",.env4dyn$"+env+")"),"done"

    ## code="evalq("+code+",envir=.GlobalEnv$.env4dyn$"+env+")" ##-> replaced by
    code=RServer.code_envir(code,env)
#Dyndoc.warn "RServer.output->",code,(@@out < code)
#Dyndoc.warn "RServer.safe_output: capture",capture,code
    if opts[:capture] or opts[:blockR]
      ## IMPORTANT; this is here to ensure that a double output is avoided at the end if the last instruction is a print
      code = "invisible("+code+")" if invisible
      code+=";invisible()" if opts[:blockR]
      #Dyndoc.warn "safe_output",code
      res=(@@out < "capture.output.cqls({"+code+"})")
      #Dyndoc.warn "res", res
      res=res.join("\n")
    else
      res=(@@out < "{.result_try_code<-try({"+code+"},silent=TRUE);if(inherits(.result_try_code,'try-error')) 'try-error' else .result_try_code}") #.join(', ')
    end
    res
end