| # pushcalc - push parser with Bison |
| |
| This directory contains pushcalc, the traditional calculator, implemented as |
| a push parser. |
| |
| Traditionally Bison is used to create so called "pull parsers": the user |
| invokes the parser once, which repeatedly calls (pulls) the scanner until |
| the input is drained. |
| |
| This example demonstrates the "push parsers": the user calls scanner to |
| fetch the next token, passes (pushes) it to the parser, and repeats the |
| operation until the input is drained. |
| |
| This example is a straightforward conversion of the 'calc' example to the |
| push-parser model. |
| |
| <!--- |
| Local Variables: |
| fill-column: 76 |
| ispell-dictionary: "american" |
| End: |
| |
| Copyright (C) 2020-2021 Free Software Foundation, Inc. |
| |
| Permission is granted to copy, distribute and/or modify this document |
| under the terms of the GNU Free Documentation License, Version 1.3 or |
| any later version published by the Free Software Foundation; with no |
| Invariant Sections, with no Front-Cover Texts, and with no Back-Cover |
| Texts. A copy of the license is included in the "GNU Free |
| Documentation License" file as part of this distribution. |
| |
| ---> |
