Class: PPP

Inherits:
PP show all
Defined in:
lib/perception/ppp.rb

Overview

patches pretty print

Beautify: reworking the pretty print results collapse

Pretty Print Patches collapse

Class Method Details

.beautify(string) ⇒ String

reworking the pretty print results

Returns:



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# File 'lib/perception/ppp.rb', line 27

def self.beautify(string)
  begin
    result = string# .gsub!("`","'")
    result = beautify_focus_level1(result)
    case classify_structure(string)
      when :object      then  result = beautify_object(result)        
      when :hash        then  result = beautify_hash(result)             
      when :array_1dim  then  result = beautify_array_1dim(result)      
      when :array_2dim  then  result = beautify_array_2dim(result)    
    end  
    return result
  # rescue
    # return string
  end
end

.beautify_array_1dim(string) ⇒ String

Beautify for one-dimensional arrays or any object that prints like an array. In front of the brackets there are identifier allowed, eg WP [1, 2, 3]

Returns:



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# File 'lib/perception/ppp.rb', line 188

def self.beautify_array_1dim(string) 
  return string
  # tabstops = result[1..-2].analyze_columns( :level_start  => 0,     
                                            # :level_end    => 0,
                                            # :search       => ',',
                                            # :stretch      => 0  )   
  # tabstops = [25]   if tabstops.empty?
  # maxtab = tabstops.sort[-1]    


  # result = result.spread( :level_start  => 1,     
                          # :level_end    => 1,
                          # :tabstops     => (1..10).collect {|i| i * (maxtab+1)},
                          # :search       => ',',
                          # :position_add => 1 )
end

.beautify_array_2dim(string) ⇒ String

Beautify for two-dimensional arrays -

very dirty.

Returns:



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# File 'lib/perception/ppp.rb', line 210

def self.beautify_array_2dim(string) 
  result = string

  # Komma retten
  result = result.mask( :level_start => 3,
                        :pattern     => /['"({<\[]/
                      ) { |s| s.tr(',', Perception::PPP_KOMMA)} 
  
  # Tiefere Level retten
  result = result.mask( :level_start    => 2,  
                        :with_brackets  => true,                           
                        :pattern        => /\[/ 
                      ) { |s| s.tr(Perception::PPP_TR_ARRAY_P, Perception::PPP_TR_ARRAY_Q)}
  
  # zeilenweise 
  replaces = [[/,[^\n]/, ", \n "]]
  result = result.mask( :level_start => 1, 
                        :level_end   => 1, 
                        :pattern     => /\[/ 
                      ) { |s| s.mgsub(replaces)}       

  # Tabstops 
  tabstops = result[1..-2].analyze_columns( :level_start  => 1,     
                                            :level_end    => 1,
                                            :search       => ',',
                                            :stretch      => 1  )   || [25]    
  tabstops2 = []   
  tabstops.each do |t|
    tabstops2 << t + (tabstops2[-1]||0)      
  end

  # ausrichten
  result = result.spread(  :level_start => 2,     
                           :level_end   => 2,
                           :tabstops    => tabstops2,
                           :search      => /,/   )      

  # Tiefere Level zurück
  result = result.mask( :level_start    => 2, 
                        :with_brackets  => true,                           
                        :pattern        => /\[/  
                      ) { |s| s.tr(Perception::PPP_TR_ARRAY_Q, Perception::PPP_TR_ARRAY_R)}    

  #Komma zurück
  result = result.mask( :level_start => 3,
                        :pattern     => /['"({<\[]/
                      ) { |s| s.gsub(Perception::PPP_KOMMA, ',')} 
  
  return result    

end

.beautify_focus_level1(string) ⇒ String

Level 2+ : only one line left Level 3+ : clip complex objects

Returns:



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# File 'lib/perception/ppp.rb', line 73

def self.beautify_focus_level1(string) 
  #return string
  replaces = [[/\n/, ''], [/ {2,}/,' ']]
  result = string
  result = string.mask( :level_start => 2 ) { |s| s.mgsub(replaces)}
  result = result.mask( :level_start => 3 ) { |s| (s =~ /@.*=.*/ ? '' : s) } 
  return result
end

.beautify_hash(string) ⇒ String

Beautify for Hashes

Returns:



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# File 'lib/perception/ppp.rb', line 119

def self.beautify_hash(string) 
  result = string
  result.gsub!(/=> *\n */m, '=>' )  # unnötigen Zeilenumbruch vermeiden
  
  # mehrzeilige Darstellung
  if result.include?("\n")
    result = string.mask( :level_start => 1, 
                          :level_end   => 1,
                          :pattern     => /\{/ ) { |s| s.gsub(/=>/, ' =>')}
    
    # Pfeil retten    
    result = result.mask( :level_start => 2,
                          :pattern     => /\{/ ) { |s| s.gsub('=>', Perception::PPP_PFEIL)}     

    # Unterobjekte formatieren 
    replaces = [ [/, /,',  '] ]     
    result = result.mask( :level_start => 2,
                          :level_end   => 2 ) { |s| s.mgsub(replaces)}                               
    
    # Tiefere Level retten
    result = result.mask( :level_start    => 1,  
                          :with_brackets  => true,
                          :pattern        => /\{/ 
                        ) { |s| s.tr(Perception::PPP_TR_ARRAY_P[0..5], Perception::PPP_TR_ARRAY_Q)}   

    tabstops = result.analyze_columns(  :level_start  => 0,     
                                        :level_end    => 0,
                                        :search       => '='   )  || [25]
    tabstops2 = []
    tabstops2 << tabstops[0] + 1
    tabstops2 << tabstops[0] + 5
    
    # ausrichten
    result = result.spread( :level_start  => 1,     
                            :level_end    => 1,
                            :search       => /=>/,
                            :position_add => 0,      # alle '=>' übereinander  
                            :tabstops     => tabstops2 )   
    result.gsub!('=>','=>  ')

    # Tiefere Level zurück
    result = result.mask( :level_start    => 1, 
                          :with_brackets  => true,                             
                          :pattern        => /\{/  
                        ) { |s| s.tr(Perception::PPP_TR_ARRAY_Q, Perception::PPP_TR_ARRAY_R)}  

    # Pfeil zurück
    result = result.mask( :level_start => 2,
                          :pattern     => /\{/ )  { |s| s.gsub(Perception::PPP_PFEIL, '=>')}       
    
        

  # einzeilige Darstellung
  else
    result = string.mask( :level_start => 1, 
                          :level_end   => 1,
                          :pattern     => /\{/ ) { |s| s.gsub(/, /, ',  ')}
    
  end

  result
end

.beautify_multi(string) ⇒ String

Beautify for complex objects.

Mehrere Ausgaben in einer Zeile. Die einzelnen Ausgaben liegen als Array vor. Das Ergebnis soll aber nicht wie ein Array ausssehen.

Returns:



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# File 'lib/perception/ppp.rb', line 272

def self.beautify_multi(string)
  result = string
  result = beautify_focus_level1(result)    
  result = result.mask(     :level_start    => 1,
                            :level_end      => 1,
                            :pattern     => /\[/                               
                      ) {|s| s.tr(',', Perception::PPP_KOMMA)}      
  result = result.spread_line( [25], Perception::PPP_KOMMA, 0 )
  
  # Äußeres Array entfernen
  result = result.tr(Perception::PPP_TR_ALL,'')
  result = result.mask(     :with_brackets  => true,
                            :level_start    => 0,
                            :level_end      => 0,
                            :pattern     => /\[/                                 
                      ) {|s| s.tr('[]','')}          
  return result
end

.beautify_object(string) ⇒ String

Beautify for Objects

Returns:



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# File 'lib/perception/ppp.rb', line 87

def self.beautify_object(string) 
  result = string
  result.gsub!(/= *\n */m, '=' )  # unnötigen Zeilenumbruch vermeiden
  result = result.mask( :level_start  => 1, 
                        :level_end    => 1,
                        :pattern      => /</  ) { |s| s.gsub(/=/, ' = ')} 
  replaces = [ [/ @/, '  @'], [/= #/,'=#'] ]  # Unterobjekte formatieren
  result = result.mask( :level_start  => 2, 
                        :level_end    => 2 ) { |s| s.mgsub(replaces)}    
  result = result.mask( :level_start  => 4 ) { |s| ''}    

  tabstops = result.analyze_columns(  :level_start  => 0,     
                                      :level_end    => 0,
                                      :search       => '=' )  || [25]
  tabstops2 = []
  tabstops2 << tabstops[0] 
  tabstops2 << tabstops[0] + 5

  result = result.spread( :level_start  => 1,     
                          :level_end    => 1,
                          :search       => /=[^>=]/,
                          :position_add => 1,            # alle '=' links                              
                          :tabstops     => tabstops2 )   
                      
  result
end

.classify_structure(object) ⇒ Symbol

Classifies the structure of an object for output

Returns:

  • (Symbol) 


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# File 'lib/perception/ppp.rb', line 47

def self.classify_structure(object)

  # Hash
  return :hash  if object =~ /^\{.*=>.*\}/m     
  
  # Object
  return :object  if object =~ /^#<.*>$/m       

  # Eindimensionales Array
  # oder Objekt, das sich wie ein Array ausdruckt -- vor der eckigen Klammer ist ein Identifier erlaubt, z.B. WP[ 1, 2, 3]  
  return :array_1dim  if object =~ /^[A-Z_0-9a-z]{0,30}\[[^\[].*[^\]]\]$/m 
  
  # Zweidimensionales Array
  # Anfang prüfen: Zwei eckige Klammern auf, danach keine eckige Klammer auf
  # oder alternativ ein Text zwischen den beiden Klammern auf
  return :array_2dim  if object =~ /^\[[A-Z_0-9a-z]{0,30}\[[^\[]/m
  #return self unless object =~ /[^\]]\]\]$/   # Ende prüfen: Zwei eckige Klammern zu, davor keine eckige Klammer zu  
     
end

.pp(obj, out = $>, width = 79) ⇒ Object 



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# File 'lib/perception/ppp.rb', line 298

def self.pp(obj, out=$>, width=79 )
  q = PPP.new(out, width, "\n")
  q.guard_inspect_key {q.pp(obj)}
  q.flush
  #$pp = q
  out
end

Instance Method Details

#comma_newline ⇒ Object 



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# File 'lib/perception/ppp.rb', line 324

def comma_newline
  text ","
  breakable('',9999)   
end

#pp_hash(obj) ⇒ Object

hashes with more than three keys are displayed line by line



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# File 'lib/perception/ppp.rb', line 332

def pp_hash(obj)
  group(1, '{', '}') {
    seplist(obj, 3, :each_pair) {|k, v|
      group {
        pp k
        text '=>'
        group(1) {
          breakable ''
          pp v
        }
      }
    }
  }
end

#seplist(list, sep = nil, iter_method = :each) ⇒ Object

ensures that lists with more than three elements are displayed line by line



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# File 'lib/perception/ppp.rb', line 309

def seplist(list, sep=nil, iter_method=:each) # :yield: element
  sep = lambda { comma_newline }   if (sep.kind_of?(Integer)  &&  list.size > sep )
  sep = lambda { comma_breakable } if (sep.nil? || sep.kind_of?(Integer))
  first = true
  list.__send__(iter_method) {|*v|
    if first
      first = false
    else
      sep.call
    end
    yield(*v)
  }
end