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 



129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
 
# 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 



166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
 
# 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 



185
186
187
188
189
190
191
192
193
194
195
 
# 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 



32
33
34
35
36
37
38
39
40
41
42
43
 
# 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 



152
153
154
155
156
157
158
159
160
161
162
163
164
 
# 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



60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
 
# 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 



109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
 
# 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