How To Install happy on Fedora 34

happy is Parser Generator for Haskell

Introduction

In this tutorial we learn how to install happy on Fedora 34.

What is happy

Happy is a parser generator for Haskell. Given a grammar specification in BNF, Happy generates Haskell code to parse the grammar. Happy works in a similar way to the ‘yacc’ tool for C.

We can use yum or dnf to install happy on Fedora 34. In this tutorial we discuss both methods but you only need to choose one of method to install happy.

Install happy on Fedora 34 Using dnf

Update yum database with dnf using the following command.

sudo dnf makecache --refresh

The output should look something like this:

Fedora 34 - x86_64                               20 kB/s | 6.6 kB     00:00
Fedora 34 openh264 (From Cisco) - x86_64        1.4 kB/s | 989  B     00:00
Fedora Modular 34 - x86_64                       68 kB/s | 6.5 kB     00:00
Fedora 34 - x86_64 - Updates                    3.5 kB/s | 6.2 kB     00:01
Fedora Modular 34 - x86_64 - Updates             17 kB/s | 5.9 kB     00:00
Metadata cache created.

After updating yum database, We can install happy using dnf by running the following command:

sudo dnf -y install happy

Install happy on Fedora 34 Using yum

Update yum database with yum using the following command.

sudo yum makecache --refresh

The output should look something like this:

Fedora 34 - x86_64                               20 kB/s | 6.6 kB     00:00
Fedora 34 openh264 (From Cisco) - x86_64        1.4 kB/s | 989  B     00:00
Fedora Modular 34 - x86_64                       68 kB/s | 6.5 kB     00:00
Fedora 34 - x86_64 - Updates                    3.5 kB/s | 6.2 kB     00:01
Fedora Modular 34 - x86_64 - Updates             17 kB/s | 5.9 kB     00:00
Metadata cache created.

After updating yum database, We can install happy using yum by running the following command:

sudo yum -y install happy

How To Uninstall happy on Fedora 34

To uninstall only the happy package we can use the following command:

sudo dnf remove happy

happy Package Contents on Fedora 34

/usr/bin/happy
/usr/lib/.build-id
/usr/lib/.build-id/8f
/usr/lib/.build-id/8f/2fd363bd064775ad190540d83c201862593b0f
/usr/share/doc/happy
/usr/share/doc/happy/ANNOUNCE
/usr/share/doc/happy/CHANGES
/usr/share/doc/happy/README.md
/usr/share/doc/happy/TODO
/usr/share/doc/happy/examples
/usr/share/doc/happy/examples/Calc.ly
/usr/share/doc/happy/examples/DavesExample.ly
/usr/share/doc/happy/examples/ErlParser.ly
/usr/share/doc/happy/examples/ErrorTest.ly
/usr/share/doc/happy/examples/LexerTest.ly
/usr/share/doc/happy/examples/MonadTest.ly
/usr/share/doc/happy/examples/PgnParser.ly
/usr/share/doc/happy/examples/README
/usr/share/doc/happy/examples/SimonsExample.ly
/usr/share/doc/happy/examples/glr
/usr/share/doc/happy/examples/glr/Makefile
/usr/share/doc/happy/examples/glr/Makefile.defs
/usr/share/doc/happy/examples/glr/bio-eg
/usr/share/doc/happy/examples/glr/bio-eg/1-1200.dna
/usr/share/doc/happy/examples/glr/bio-eg/1-600.dna
/usr/share/doc/happy/examples/glr/bio-eg/Bio.y
/usr/share/doc/happy/examples/glr/bio-eg/Main.lhs
/usr/share/doc/happy/examples/glr/bio-eg/Makefile
/usr/share/doc/happy/examples/glr/bio-eg/README
/usr/share/doc/happy/examples/glr/common
/usr/share/doc/happy/examples/glr/common/DV_lhs
/usr/share/doc/happy/examples/glr/common/DaVinciTypes.hs
/usr/share/doc/happy/examples/glr/expr-eval
/usr/share/doc/happy/examples/glr/expr-eval/Expr.y
/usr/share/doc/happy/examples/glr/expr-eval/Hugs.lhs
/usr/share/doc/happy/examples/glr/expr-eval/Main.lhs
/usr/share/doc/happy/examples/glr/expr-eval/Makefile
/usr/share/doc/happy/examples/glr/expr-eval/README
/usr/share/doc/happy/examples/glr/expr-monad
/usr/share/doc/happy/examples/glr/expr-monad/Expr.y
/usr/share/doc/happy/examples/glr/expr-monad/Hugs.lhs
/usr/share/doc/happy/examples/glr/expr-monad/Main.lhs
/usr/share/doc/happy/examples/glr/expr-monad/Makefile
/usr/share/doc/happy/examples/glr/expr-monad/README
/usr/share/doc/happy/examples/glr/expr-tree
/usr/share/doc/happy/examples/glr/expr-tree/Expr.y
/usr/share/doc/happy/examples/glr/expr-tree/Hugs.lhs
/usr/share/doc/happy/examples/glr/expr-tree/Main.lhs
/usr/share/doc/happy/examples/glr/expr-tree/Makefile
/usr/share/doc/happy/examples/glr/expr-tree/README
/usr/share/doc/happy/examples/glr/expr-tree/Tree.lhs
/usr/share/doc/happy/examples/glr/hidden-leftrec
/usr/share/doc/happy/examples/glr/hidden-leftrec/Expr.y
/usr/share/doc/happy/examples/glr/hidden-leftrec/Hugs.lhs
/usr/share/doc/happy/examples/glr/hidden-leftrec/Main.lhs
/usr/share/doc/happy/examples/glr/hidden-leftrec/Makefile
/usr/share/doc/happy/examples/glr/hidden-leftrec/README
/usr/share/doc/happy/examples/glr/highly-ambiguous
/usr/share/doc/happy/examples/glr/highly-ambiguous/Expr.y
/usr/share/doc/happy/examples/glr/highly-ambiguous/Hugs.lhs
/usr/share/doc/happy/examples/glr/highly-ambiguous/Main.lhs
/usr/share/doc/happy/examples/glr/highly-ambiguous/Makefile
/usr/share/doc/happy/examples/glr/highly-ambiguous/README
/usr/share/doc/happy/examples/glr/nlp
/usr/share/doc/happy/examples/glr/nlp/English.y
/usr/share/doc/happy/examples/glr/nlp/Hugs.lhs
/usr/share/doc/happy/examples/glr/nlp/Main.lhs
/usr/share/doc/happy/examples/glr/nlp/Makefile
/usr/share/doc/happy/examples/glr/nlp/README
/usr/share/doc/happy/examples/glr/packing
/usr/share/doc/happy/examples/glr/packing/Expr.y
/usr/share/doc/happy/examples/glr/packing/Hugs.lhs
/usr/share/doc/happy/examples/glr/packing/Main.lhs
/usr/share/doc/happy/examples/glr/packing/Makefile
/usr/share/doc/happy/examples/glr/packing/README
/usr/share/doc/happy/examples/igloo
/usr/share/doc/happy/examples/igloo/Foo.hs
/usr/share/doc/happy/examples/igloo/Lexer.x
/usr/share/doc/happy/examples/igloo/Makefile
/usr/share/doc/happy/examples/igloo/Parser.y
/usr/share/doc/happy/examples/igloo/ParserM.hs
/usr/share/doc/happy/examples/igloo/README
/usr/share/doc/happy/happy
/usr/share/doc/happy/happy/fptools.css
/usr/share/doc/happy/happy/happy-introduction.html
/usr/share/doc/happy/happy/index.html
/usr/share/doc/happy/happy/ix01.html
/usr/share/doc/happy/happy/sec-AtrributeGrammarsInHappy.html
/usr/share/doc/happy/happy/sec-AttrGrammarLimits.html
/usr/share/doc/happy/happy/sec-AttributeGrammar.html
/usr/share/doc/happy/happy/sec-AttributeGrammarExample.html
/usr/share/doc/happy/happy/sec-Precedences.html
/usr/share/doc/happy/happy/sec-compilation-time.html
/usr/share/doc/happy/happy/sec-conflict-tips.html
/usr/share/doc/happy/happy/sec-directives.html
/usr/share/doc/happy/happy/sec-error.html
/usr/share/doc/happy/happy/sec-finding-errors.html
/usr/share/doc/happy/happy/sec-glr-misc.html
/usr/share/doc/happy/happy/sec-glr-semantics.html
/usr/share/doc/happy/happy/sec-glr-using.html
/usr/share/doc/happy/happy/sec-glr.html
/usr/share/doc/happy/happy/sec-grammar-files.html
/usr/share/doc/happy/happy/sec-grammar.html
/usr/share/doc/happy/happy/sec-happy-ghci.html
/usr/share/doc/happy/happy/sec-info-files-conflicts.html
/usr/share/doc/happy/happy/sec-info-files.html
/usr/share/doc/happy/happy/sec-invoking.html
/usr/share/doc/happy/happy/sec-license.html
/usr/share/doc/happy/happy/sec-module-header.html
/usr/share/doc/happy/happy/sec-module-trailer.html
/usr/share/doc/happy/happy/sec-monad-alex.html
/usr/share/doc/happy/happy/sec-monads.html
/usr/share/doc/happy/happy/sec-multiple-parsers.html
/usr/share/doc/happy/happy/sec-obtaining.html
/usr/share/doc/happy/happy/sec-reporting-bugs.html
/usr/share/doc/happy/happy/sec-sequences.html
/usr/share/doc/happy/happy/sec-tips.html
/usr/share/doc/happy/happy/sec-type-signatures.html
/usr/share/doc/happy/happy/sec-using.html
/usr/share/happy-1.19.12
/usr/share/happy-1.19.12/GLR_Base
/usr/share/happy-1.19.12/GLR_Lib
/usr/share/happy-1.19.12/GLR_Lib-ghc
/usr/share/happy-1.19.12/GLR_Lib-ghc-debug
/usr/share/happy-1.19.12/HappyTemplate
/usr/share/happy-1.19.12/HappyTemplate-arrays
/usr/share/happy-1.19.12/HappyTemplate-arrays-coerce
/usr/share/happy-1.19.12/HappyTemplate-arrays-coerce-debug
/usr/share/happy-1.19.12/HappyTemplate-arrays-debug
/usr/share/happy-1.19.12/HappyTemplate-arrays-ghc
/usr/share/happy-1.19.12/HappyTemplate-arrays-ghc-debug
/usr/share/happy-1.19.12/HappyTemplate-coerce
/usr/share/happy-1.19.12/HappyTemplate-ghc
/usr/share/licenses/happy
/usr/share/licenses/happy/LICENSE

References

Summary

In this tutorial we learn how to install happy on Fedora 34 using yum and dnf.