Class: RedParse::StringCatNode

Inherits:
ValueNode show all
Defined in:
lib/redparse/node.rb,
lib/redparse/node.rb

Constant Summary

Constants included from FlattenedIvars

FlattenedIvars::EXCLUDED_IVARS

Instance Attribute Summary

Attributes inherited from Node

#endline, #errors, #offset, #parent, #startline

Attributes included from RedParse::Stackable::Meta

#boolean_identity_params, #identity_params

Instance Method Summary collapse

Methods inherited from ValueNode

#lvalue

Methods inherited from Node

#+, #+@, #==, [], #[]=, #add_parent_links!, #begin_parsetree, create, #data, #deep_copy, #delete_extraneous_ivars!, #delete_linenums!, #depthwalk, #depthwalk_nodes, #error?, #evalable_inspect, #fixup_multiple_assignments!, #fixup_rescue_assignments!, #image, #initialize_ivars, inline_symbols, #inspect, #lhs_unparse, #linerange, #lvalue, #lvars_defined_in, #merge_replacement_session, namelist, #negate, #original_brackets_assign, param_names, #parsetrees, #pretty_print, #prohibit_fixup, #replace_ivars_and_self, #replace_value, #rescue_parsetree, #to_parsetree, #to_parsetree_and_warnings, #unary, #walk, #xform_tree!

Methods included from RedParse::Stackable::Meta

#build_exemplars, #enumerate_exemplars, #identity_param

Methods included from FlattenedIvars

#flattened_ivars, #flattened_ivars_equal?

Methods included from Stackable

#identity_name

Constructor Details

#initialize(*strses) ⇒ StringCatNode

Returns a new instance of StringCatNode.



1531
1532
1533
1534
1535
1536
1537
 
# File 'lib/redparse/node.rb', line 1531

def initialize(*strses)
  strs=strses.pop.unshift( *strses )
  hd=strs.shift if HereDocNode===strs.first
  strs.map!{|str| StringNode.new(str)}
  strs.unshift hd if hd
  super( *strs )
end

Instance Method Details

#parsetree(o) ⇒ Object 



1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
 
# File 'lib/redparse/node.rb', line 1538

def parsetree(o)
  result=map{|str| str.parsetree(o)}
  sum=''
  type=:str
  tree=i=nil
  result.each_with_index{|tree2,i2| tree,i=tree2,i2 
    sum+=tree[1]
    tree.first==:str or break(type=:dstr)
  }
  [type,sum,*tree[2..-1]+result[i+1..-1].inject([]){|cat,x|
    if x.first==:dstr
      x.shift
      x0=x[0] 
      if x0=='' and x.size==2
        x.shift
      else
        x[0]=[:str,x0]
      end
      cat+x
    elsif x.last.empty?
      cat
    else
      cat+[x]
    end
    }
  ]
end

#unparse(o = default_unparse_options) ⇒ Object 



1566
1567
1568
 
# File 'lib/redparse/node.rb', line 1566

def unparse o=default_unparse_options
  map{|ss| ss.unparse(o)}.join ' '      
end