Class: Dyndoc::RbServer

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

Class Method Summary collapse

Class Method Details

.capture(code, rbEnvir = nil) ⇒ Object 



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# File 'lib/dyndoc/base/filter/server.rb', line 129

def RbServer.capture(code,rbEnvir=nil)

  require 'stringio'
 require 'ostruct'

    begin
   # redirect output to StringIO objects
   oldstdout,oldstderr=$stdout, $stderr
   stdout, stderr = StringIO.new, StringIO.new
   $stdout, $stderr = stdout, stderr

   if rbEnvir.is_a? Binding
    out=rbEnvir.eval(code)
   elsif rbEnvir.is_a? Module
       out=rbEnvir.module_eval(code)
   end
    ensure
   # restore normal output
   $stdout, $stderr = oldstdout,oldstderr
    end
  {input: code, output: out.inspect, stdout: stdout.string, stderr: stderr.string}
end

.echo(code, rbEnvir = nil, prompt = "ruby> ", tab = 2) ⇒ Object 



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# File 'lib/dyndoc/base/filter/server.rb', line 166

def RbServer.echo(code,rbEnvir=nil,prompt="ruby> ",tab=2)
  out=""
  res=RbServer.inputsAndOutputs(code,rbEnvir)
  ## Dyndoc.warn "RbServer",res
  res.each do |cmd|
    ## Dyndoc.warn "input",cmd
     out << prompt+ cmd[:input].split("\n").each_with_index.map{|e,i| i==0 ? e : " "*(prompt.length)+e}.join("\n").gsub(/\t/," "*tab)
    out << "\n"
    ## Dyndoc.warn "output1",out
    out << cmd[:stdout]
    out << cmd[:output] || ""
    ## Dyndoc.warn "output2",out
    out << cmd[:stderr]!=""  ? cmd[:stderr] : ""
    out << (cmd[:output]  ? "\n\n" : "")
    ## Dyndoc.warn "output3",out
  end
  out
end

.echo_verb(txt, mode, rbEnvir = nil) ⇒ Object 



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# File 'lib/dyndoc/base/filter/server.rb', line 185

def RbServer.echo_verb(txt,mode,rbEnvir=nil)
    ## Dyndoc.warn "echo_verb:txt",txt
    txtout=Dyndoc::RbServer.echo(txt.strip,rbEnvir).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

.filter(str, rbEnvir = nil) ⇒ Object 



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# File 'lib/dyndoc/base/filter/server.rb', line 32

def RbServer.filter(str,rbEnvir=nil)
  res=str.gsub(/\\?(?i:\#Rb|\#rb|\:Rb|\:rb|\:)#{@@start}[^#{@@stop}]+#{@@stop}/) {|w|
    if w[0,1]=="\\"
 w[1..-1]
    else
 k=(w[1,2].downcase=="rb" ? w[4..-2] : w[2..-2]) #the key
#p "apply:Rb";p k;p w;p rbEnvir
        RbServer.output(k,rbEnvir,:error=> w)
    end
  }
  res
end

.inputsAndOutputs(code, rbEnvir = nil) ⇒ Object 



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# File 'lib/dyndoc/base/filter/server.rb', line 152

def RbServer.inputsAndOutputs(code,rbEnvir=nil)
  require 'ripper'
  res = []
  input = ""
  code.each_line do |l|
    input += l
    if Ripper.sexp input
      res << RbServer.capture(input,rbEnvir)
      input = ""
    end
  end
  res
end

.output(code, rbEnvir = nil, opts = {:error=>"ERROR"}) ⇒ Object

def RbServer.output(code,rbEnvir=nil,error=“ERROR”)

begin

#puts “code”;p code out=eval(code,rbEnvir) #puts “out”;p out

rescue
  out=error
end

#p out

  out=out.join(",") if out.is_a? Array
  out.to_s
end



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# File 'lib/dyndoc/base/filter/server.rb', line 60

def RbServer.output(code,rbEnvir=nil,opts={:error=>"ERROR"})

 begin
     if rbEnvir.is_a? Binding
    out=rbEnvir.eval(code)
  elsif rbEnvir.is_a? Module
      out=rbEnvir.module_eval(code)
  end
 rescue
  if RUBY_VERSION >= "1.9.3" and rbEnvir.is_a? Binding and rbEnvir.eval("local_variables").include? :childBinding
    begin
      rbEnvir2=rbEnvir.eval("childBinding")
      out=rbEnvir2.eval(code)
      return out
    rescue
    end
  end

      #two solution:
      #in the same spirit as #{}
      # out="\\:{"+code+"}"
      # or more informative for debugging!

      out="\\:{"+code+"}"

      if Dyndoc.cfg_dyn[:ruby_debug] ==:expression
      Dyndoc.warn "WARNING: >>>>>>>>>>>>>>>>>>+\n"+opts[:error]+" in #{rbEnvir}:\n"+code+"\n<<<<<<<<<<<<<<<<<<"
      end


      if Dyndoc.cfg_dyn[:dyndoc_mode]!=:normal and $dyn_logger
##p ["error ruby",code]
      $dyn_logger.write("\nERROR Ruby:\n"+code+"\n")
     end

 rescue SyntaxError
      
      $outRbError="RbServer syntax error in: "+code
      puts $outRbError
     raise SystemError if Dyndoc.cfg_dyn[:dyndoc_mode]==:normal and  Dyndoc.cfg_dyn[:ruby_debug]!=:none
     if Dyndoc.cfg_dyn[:dyndoc_mode]!=:normal
      $dyn_logger.write("\nERROR Ruby Syntax:\n"+code+"\n")
     end
     out=":{"+code+"}"
  end
#p out
    out
end

.redirect ⇒ Object 



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# File 'lib/dyndoc/base/filter/server.rb', line 109

def RbServer.redirect
  if block_given?
    require 'stringio'
    begin
      # redirect output to StringIO objects
      oldstdout,oldstderr=$stdout, $stderr
      stdout, stderr = StringIO.new, StringIO.new
      $stdout, $stderr = stdout, stderr
      yield
    ensure
      # restore normal output
      $stdout, $stderr = oldstdout,oldstderr
    end
    return {stdout: stdout.string, stderr: stderr.string}
  else
    return {stdout: "", stderr: ""}
  end

end