(bison.info)RPN Calc


Next: Infix Calc Up: Examples

Reverse Polish Notation Calculator
==================================

   The first example is that of a simple double-precision "reverse
polish notation" calculator (a calculator using postfix operators).
This example provides a good starting point, since operator precedence
is not an issue.  The second example will illustrate how operator
precedence is handled.

   The source code for this calculator is named `rpcalc.y'.  The `.y'
extension is a convention used for Bison input files.

* Decls
Rpcalc Decls. Bison and C declarations for rpcalc.
* Rules
Rpcalc Rules. Grammar Rules for rpcalc, with explanation.
* Lexer
Rpcalc Lexer. The lexical analyzer.
* Main
Rpcalc Main. The controlling function.
* Error
Rpcalc Error. The error reporting function.
* Gen
Rpcalc Gen. Running Bison on the grammar file.
* Comp
Rpcalc Compile. Run the C compiler on the output code.

automatically generated by info version 1.5

Dirfile and infopages generated Sat Dec 3 02:07:54 2005