ROOT (token: short_text [lag_newlines/spaces] {pos_id})   
 ¦--COMMENT: # not [0/0] {1}                              
 ¦--expr: if (x [1/0] {2}                                 
 ¦   ¦--IF: if [0/1] {3}                                  
 ¦   ¦--'(': ( [0/0] {4}                                  
 ¦   ¦--expr: x [0/0] {6}                                 
 ¦   ¦   °--SYMBOL: x [0/0] {5}                           
 ¦   ¦--')': ) [0/1] {7}                                  
 ¦   ¦--expr: {1+1+ [0/1] {8}                             
 ¦   ¦   ¦--'{': { [0/0] {9}                              
 ¦   ¦   ¦--expr: 1+1++ [0/0] {10}                        
 ¦   ¦   ¦   ¦--expr: 1 [0/0] {13}                        
 ¦   ¦   ¦   ¦   °--NUM_CONST: 1 [0/0] {12}               
 ¦   ¦   ¦   ¦--'+': + [0/0] {14}                         
 ¦   ¦   ¦   ¦--expr: 1 [0/0] {16}                        
 ¦   ¦   ¦   ¦   °--NUM_CONST: 1 [0/0] {15}               
 ¦   ¦   ¦   ¦--'+': + [0/0] {17}                         
 ¦   ¦   ¦   °--expr: +1 [0/0] {18}                       
 ¦   ¦   ¦       ¦--'+': + [0/0] {19}                     
 ¦   ¦   ¦       °--expr: 1 [0/0] {21}                    
 ¦   ¦   ¦           °--NUM_CONST: 1 [0/0] {20}           
 ¦   ¦   °--'}': } [0/0] {22}                             
 ¦   ¦--ELSE: else [0/0] {23}                             
 ¦   °--expr: {3} [0/0] {24}                              
 ¦       ¦--'{': { [0/0] {25}                             
 ¦       ¦--expr: 3 [0/0] {27}                            
 ¦       ¦   °--NUM_CONST: 3 [0/0] {26}                   
 ¦       °--'}': } [0/0] {28}                             
 ¦--COMMENT: # not [2/0] {29}                             
 ¦--COMMENT: # FIX [1/0] {30}                             
 ¦--expr: test_ [1/0] {31}                                
 ¦   ¦--expr: test_ [0/0] {33}                            
 ¦   ¦   °--SYMBOL_FUNCTION_CALL: test_ [0/0] {32}        
 ¦   ¦--'(': ( [0/0] {34}                                 
 ¦   ¦--expr: "x" [0/0] {36}                              
 ¦   ¦   °--STR_CONST: "x" [0/0] {35}                     
 ¦   ¦--',': , [0/2] {37}                                 
 ¦   ¦--expr: {
    [1/0] {38}                           
 ¦   ¦   ¦--'{': { [0/12] {39}                            
 ¦   ¦   ¦--expr: my_te [1/0] {40}                        
 ¦   ¦   ¦   ¦--expr: my_te [0/0] {42}                    
 ¦   ¦   ¦   ¦   °--SYMBOL_FUNCTION_CALL: my_te [0/0] {41}
 ¦   ¦   ¦   ¦--'(': ( [0/0] {43}                         
 ¦   ¦   ¦   ¦--expr: call [0/0] {45}                     
 ¦   ¦   ¦   ¦   °--SYMBOL: call [0/0] {44}               
 ¦   ¦   ¦   °--')': ) [0/0] {46}                         
 ¦   ¦   °--'}': } [1/0] {47}                             
 ¦   °--')': ) [0/0] {48}                                 
 ¦--COMMENT: # do  [2/0] {49}                             
 ¦--expr_or_assign_or_help: a = 3 [1/0] {50}              
 ¦   ¦--expr: a [0/1] {52}                                
 ¦   ¦   °--SYMBOL: a [0/0] {51}                          
 ¦   ¦--EQ_ASSIGN: = [0/1] {53}                           
 ¦   °--expr: 3 [0/0] {55}                                
 ¦       °--NUM_CONST: 3 [0/0] {54}                       
 ¦--expr: data_ [1/0] {56}                                
 ¦   ¦--expr: data_ [0/0] {58}                            
 ¦   ¦   °--SYMBOL_FUNCTION_CALL: data_ [0/0] {57}        
 ¦   ¦--'(': ( [0/0] {59}                                 
 ¦   ¦--SYMBOL_SUB: a [0/1] {60}                          
 ¦   ¦--EQ_SUB: = [0/1] {61}                              
 ¦   ¦--expr: 3 [0/0] {63}                                
 ¦   ¦   °--NUM_CONST: 3 [0/0] {62}                       
 ¦   °--')': ) [0/0] {64}                                 
 ¦--COMMENT: # do  [2/0] {65}                             
 ¦--expr: a <-  [1/0] {66}                                
 ¦   ¦--expr: a [0/1] {68}                                
 ¦   ¦   °--SYMBOL: a [0/0] {67}                          
 ¦   ¦--LEFT_ASSIGN: <- [0/1] {69}                        
 ¦   °--expr: funct [0/0] {70}                            
 ¦       ¦--FUNCTION: funct [0/0] {71}                    
 ¦       ¦--'(': ( [0/0] {72}                             
 ¦       ¦--SYMBOL_FORMALS: x [0/0] {73}                  
 ¦       ¦--')': ) [0/1] {74}                             
 ¦       °--expr: x + 1 [0/0] {75}                        
 ¦           ¦--expr: x [0/1] {77}                        
 ¦           ¦   °--SYMBOL: x [0/0] {76}                  
 ¦           ¦--'+': + [0/1] {78}                         
 ¦           °--expr: 1 [0/0] {80}                        
 ¦               °--NUM_CONST: 1 [0/0] {79}               
 ¦--';': ; [0/0] {81}                                     
 ¦--expr: b [0/0] {83}                                    
 ¦   °--SYMBOL: b [0/0] {82}                              
 ¦--';': ; [0/0] {84}                                     
 ¦--expr: c [0/0] {86}                                    
 ¦   °--SYMBOL: c [0/0] {85}                              
 ¦--COMMENT: # don [2/0] {87}                             
 °--expr: a %>% [1/0] {88}                                
     ¦--expr: a [0/1] {91}                                
     ¦   °--SYMBOL: a [0/0] {90}                          
     ¦--SPECIAL-PIPE: %>% [0/2] {92}                      
     ¦--expr: b [1/1] {94}                                
     ¦   °--SYMBOL: b [0/0] {93}                          
     ¦--SPECIAL-PIPE: %>% [0/2] {95}                      
     °--expr: c [1/0] {97}                                
         °--SYMBOL: c [0/0] {96}                          
