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(bison.info)RPN Calc

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Reverse Polish Notation Calculator
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   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.