prefix to infix conversion

[NageshB]

Hi every one,

can any help me in converting prefix to infix using Stack in c I know
the reverse

 

[Richard Heathfield]

NageshB said:

Hi every one,

can any help me in converting prefix to infix using Stack in c I know
the reverse

The belt-and-braces technique is easy enough:

prefix_to_infix(stream, stack)
if stack is not empty
pop a node off the stack
if this node represents an operator
write an opening parenthesis to stream
prefix_to_infix(stream, stack)
write operator to stream
prefix_to_infix(stream, stack)
write a closing parenthesis to stream
else
write value to stream
endif
endif
endfunc

Removing redundant parentheses is left as an exercise.

 

[NageshB]

Thank you Richard you suggested recursive solution can it possible to
have iterative one for this.I tried a lot for iterative i m not getting
..

 

[CBFalconer]

Thank you Richard you suggested recursive solution can it possible to
have iterative one for this.I tried a lot for iterative i m not getting

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