examples/c++/README.md - bison - Git at Google

 # Examples in C++

 This directory contains examples of Bison grammar files in C++.

 You can run `make` to compile these examples.  And `make clean` to tidy
 afterwards.

 ## simple.yy - Simple example in C++14
 A very simple example in C++, based on variants and symbol constructors.
 Variants allow to use any C++ type as semantic value type, and symbol
 constructors ensure consistency between declared token kind and effective
 semantic value.

 Run as `./simple`.

 Extracted from the documentation: [A Simple C++
 Example](https://www.gnu.org/software/bison/manual/html_node/A-Simple-C_002b_002b-Example.html).

 ## variant.yy - Self-contained example in C++98
 A variation of simple.yy, in C++98.

 Run as `./variant`.

 ## variant-11.yy - Self-contained example in modern C++
 Another variation of simple.yy, closely related to the previous one, but
 exhibiting support for C++11's move semantics.

 Run as `./variant` or `./variant NUMBER`.

 ## calc++ - A Complete C++ Example
 A fully featured C++ version of the canonical example for parsers: a
 calculator.  Also uses Flex for the scanner.

 Don't look at this example first: it is fully featured and can serve as a
 starting point for a clean parser in C++.  The previous examples are better
 introductory examples, and the C examples are also useful introductory
 examples.

 Extracted from the documentation: [A Complete C++
 Example](https://www.gnu.org/software/bison/manual/html_node/A-Complete-C_002b_002b-Example.html).

 <!---

 Local Variables:
 fill-column: 76
 ispell-dictionary: "american"
 End:

 Copyright (C) 2018-2021 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.

 LocalWords:  mfcalc calc parsers yy ispell american
 --->
	# Examples in C++

	This directory contains examples of Bison grammar files in C++.

	You can run `make` to compile these examples. And `make clean` to tidy
	afterwards.

	## simple.yy - Simple example in C++14
	A very simple example in C++, based on variants and symbol constructors.
	Variants allow to use any C++ type as semantic value type, and symbol
	constructors ensure consistency between declared token kind and effective
	semantic value.

	Run as `./simple`.

	Extracted from the documentation: [A Simple C++
	Example](https://www.gnu.org/software/bison/manual/html_node/A-Simple-C_002b_002b-Example.html).

	## variant.yy - Self-contained example in C++98
	A variation of simple.yy, in C++98.

	Run as `./variant`.

	## variant-11.yy - Self-contained example in modern C++
	Another variation of simple.yy, closely related to the previous one, but
	exhibiting support for C++11's move semantics.

	Run as `./variant` or `./variant NUMBER`.

	## calc++ - A Complete C++ Example
	A fully featured C++ version of the canonical example for parsers: a
	calculator. Also uses Flex for the scanner.

	Don't look at this example first: it is fully featured and can serve as a
	starting point for a clean parser in C++. The previous examples are better
	introductory examples, and the C examples are also useful introductory
	examples.

	Extracted from the documentation: [A Complete C++
	Example](https://www.gnu.org/software/bison/manual/html_node/A-Complete-C_002b_002b-Example.html).

	<!---

	Local Variables:
	fill-column: 76
	ispell-dictionary: "american"
	End:

	Copyright (C) 2018-2021 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.

	LocalWords: mfcalc calc parsers yy ispell american
	--->