gocc alternatives and similar packages
Based on the "Other Software" category.
Alternatively, view gocc alternatives based on common mentions on social networks and blogs.
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croc
Easily and securely send things from one computer to another :crocodile: :package: -
Seaweed File System
SeaweedFS is a fast distributed storage system for blobs, objects, files, and data lake, for billions of files! Blob store has O(1) disk seek, cloud tiering. Filer supports Cloud Drive, cross-DC active-active replication, Kubernetes, POSIX FUSE mount, S3 API, S3 Gateway, Hadoop, WebDAV, encryption, Erasure Coding. [Moved to: https://github.com/seaweedfs/seaweedfs] -
Gor
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limetext
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rkt
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Comcast
Simulating shitty network connections so you can build better systems. -
confd
Manage local application configuration files using templates and data from etcd or consul -
toxiproxy
:alarm_clock: :fire: A TCP proxy to simulate network and system conditions for chaos and resiliency testing -
scc
Sloc, Cloc and Code: scc is a very fast accurate code counter with complexity calculations and COCOMO estimates written in pure Go -
Docker
Notary is a project that allows anyone to have trust over arbitrary collections of data -
Juju
Universal Operator Lifecycle Manager (OLM) for Kubernetes operators, and operators for traditional Linux apps, with declarative integration between operators for automated microservice integration. -
blocky
Fast and lightweight DNS proxy as ad-blocker for local network with many features -
Stack Up
Super simple deployment tool - think of it like 'make' for a network of servers -
Documize
Modern Confluence alternative designed for internal & external docs, built with Go + EmberJS -
GoDNS
A dynamic DNS client tool supports AliDNS, Cloudflare, Google Domains, DNSPod, HE.net & DuckDNS & DreamHost, etc, written in Go. -
peg
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Go Package Store
An app that displays updates for the Go packages in your GOPATH. -
portal
Portal is a quick and easy command-line file transfer utility from any computer to another. -
Guora
🖖🏻 A self-hosted Quora like web application written in Go 基于 Golang 类似知乎的私有部署问答应用 包含问答、评论、点赞、管理后台等功能 -
Gokapi
Lightweight selfhosted Firefox Send alternative without public upload. AWS S3 supported. -
mockingjay
Fake server, Consumer Driven Contracts and help with testing performance from one configuration file with zero system dependencies and no coding whatsoever -
ipe
An open source Pusher server implementation compatible with Pusher client libraries written in GO -
ide
A Go code editor. With debugging and Autocomplete. 一个 Go 代码编辑器,具有 DEBUGGING 和 AUTOCOMPLETE -
tcpprobe
Modern TCP tool and service for network performance observability.
TestGPT | Generating meaningful tests for busy devs
* Code Quality Rankings and insights are calculated and provided by Lumnify.
They vary from L1 to L5 with "L5" being the highest.
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Popular Comparisons
README
New
Have a look at https://github.com/goccmack/gogll for scannerless GLL parser generation.
Gocc
Introduction
Gocc is a compiler kit for Go written in Go.
Gocc generates lexers and parsers or stand-alone DFAs or parsers from a BNF.
Lexers are DFAs, which recognise regular languages. Gocc lexers accept UTF-8 input.
Gocc parsers are PDAs, which recognise LR-1 languages. Optional LR1 conflict handling automatically resolves shift / reduce and reduce / reduce conflicts.
Generating a lexer and parser starts with creating a bnf file. Action expressions embedded in the BNF allows the user to specify semantic actions for syntax productions.
For complex applications the user typically uses an abstract syntax tree (AST) to represent the derivation of the input. The user provides a set of functions to construct the AST, which are called from the action expressions specified in the BNF.
See the [README](example/bools/README) for an included example.
User Guide (PDF): Learn You a gocc for Great Good (gocc3 user guide will be published shortly)
Installation
- First download and Install Go From http://golang.org/
- Setup your GOPATH environment variable.
- Next in your command line run: go get github.com/goccmack/gocc (go get will git clone gocc into GOPATH/src/github.com/goccmack/gocc and run go install)
- Alternatively clone the source: https://github.com/goccmack/gocc . Followed by go install github.com/goccmack/gocc
- Finally make sure that the bin folder where the gocc binary is located is in your PATH environment variable.
Getting Started
Once installed start by creating your BNF in a package folder.
For example GOPATH/src/foo/bar.bnf:
/* Lexical Part */
id : 'a'-'z' {'a'-'z'} ;
!whitespace : ' ' | '\t' | '\n' | '\r' ;
/* Syntax Part */
<< import "foo/ast" >>
Hello: "hello" id << ast.NewWorld($1) >> ;
Next to use gocc, run:
cd $GOPATH/src/foo
gocc bar.bnf
This will generate a scanner, parser and token package inside GOPATH/src/foo Following times you might only want to run gocc without the scanner flag, since you might want to start making the scanner your own. Gocc is after all only a parser generator even if the default scanner is quite useful.
Next create ast.go file at $GOPATH/src/foo/ast with the following contents:
package ast
import (
"foo/token"
)
type Attrib interface {}
type World struct {
Name string
}
func NewWorld(id Attrib) (*World, error) {
return &World{string(id.(*token.Token).Lit)}, nil
}
func (this *World) String() string {
return "hello " + this.Name
}
Finally we want to parse a string into the ast, so let us write a test at $GOPATH/src/foo/test/parse_test.go with the following contents:
package test
import (
"foo/ast"
"foo/lexer"
"foo/parser"
"testing"
)
func TestWorld(t *testing.T) {
input := []byte(`hello gocc`)
lex := lexer.NewLexer(input)
p := parser.NewParser()
st, err := p.Parse(lex)
if err != nil {
panic(err)
}
w, ok := st.(*ast.World)
if !ok {
t.Fatalf("This is not a world")
}
if w.Name != `gocc` {
t.Fatalf("Wrong world %v", w.Name)
}
}
Finally run the test:
cd $GOPATH/src/foo/test
go test -v
You have now created your first grammar with gocc. This should now be relatively easy to change into the grammar you actually want to create or an existing LR1 grammar you would like to parse.
BNF
The Gocc BNF is specified [here](spec/gocc2.ebnf)
An example bnf with action expressions can be found [here](example/bools/example.bnf)
Action Expressions and AST
An action expression is specified as "<", "<", goccExpressionList , ">", ">" . The goccExpressionList is equivalent to a goExpressionList. This expression list should return an Attrib and an error. Where Attrib is:
type Attrib interface {}
Also, parsed elements of the corresponding bnf rule can be represented in the expressionList as "$", digit.
Some action expression examples:
<< $0, nil >>
<< ast.NewFoo($1) >>
<< ast.NewBar($3, $1) >>
<< ast.TRUE, nil >>
Contants, functions, etc. that are returned or called should be programmed by the user in his ast (Abstract Syntax Tree) package. The ast package requires that you define your own Attrib interface as shown above. All parameters passed to functions will be of this type.
For raw elements that you know to be a *token.Token
, you can use the short-hand: $T0
etc, leading the following expressions to produce identical results:
<< $3.(*token.Token), nil >>
<< $T3, nil >>
Some example of functions:
func NewFoo(a Attrib) (*Foo, error) { ... }
func NewBar(a, b Attrib) (*Bar, error) { ... }
An example of an ast can be found [here](example/bools/ast/ast.go)
Release Notes for gocc 2.1
Changes
no_lexer option added to suppress generation of lexer. See the user guide.
Unreachable code removed from generated code.
Bugs fixed:
- gocc 2.1 does not support string_lit symbols with the same value as production names of the BNF. E.g. (t2.bnf):
A : "a" | "A" ;
string_lit "A" is not allowed.
Previously gocc silently ignored the conflicting string_lit. Now it generates an ugly panic:
$ gocc t2.bnf
panic: string_lit "A" conflicts with production name A
This issue will be properly resolved in a future release.
Users
These projects use gocc:
- gogo - BNF file - a Go to MIPS compiler written in Go
- gonum/gonum - BNF file - DOT decoder (part of the graph library of Gonum)
- llir/llvm - BNF file - LLVM IR library in pure Go
- mewmew/uc - BNF file - A compiler for the µC language
- gographviz - BNF file - Parses the Graphviz DOT language in golang
- katydid/relapse - BNF file - Encoding agnostic validation language
- skius/stringlang - BNF file - An interpreter for the expression-oriented language StringLang
- miller - BNF file - Miller is like awk, sed, cut, join, and sort for name-indexed data such as CSV, TSV, and tabular JSON.