https://github.com/oleksandr/fbp

A Go parser for .FBP DSL language from NoFlo
https://github.com/oleksandr/fbp

Last synced: about 2 months ago
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A Go parser for .FBP DSL language from NoFlo

• Host: GitHub
• URL: https://github.com/oleksandr/fbp
• Owner: oleksandr
• License: mit
• Created: 2014-06-20T12:24:21.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2014-07-16T21:41:41.000Z (about 10 years ago)
• Last Synced: 2024-07-12T02:47:17.692Z (2 months ago)
• Language: Go
• Size: 195 KB
• Stars: 14
• Watchers: 5
• Forks: 1
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
NoFlo's FBP DSL parser for Go

===

A Go parser for .FBP DSL language from NoFlo

Dependencies

---

This is optional. If you want to update the parser's code based on the grammer.peg you need to install the following dependency:

    go get github.com/pointlander/peg

This will download and compile _peg_ binary, which you can use later to generate the parser.

The following command will generate the parser:

    peg -switch -inline grammar.peg

Installation

---

Use regular _go install_ or _go get_ command to download and install the _fbp_ library:

    go get github.com/oleksandr/fbp

The library already includes the generated parser.

Basic usage

---

    import "github.com/oleksandr/fbp"

    var graph string = `

        '5s' -> INTERVAL Ticker(core/ticker) OUT -> IN Forward(core/passthru)

        Forward OUT -> IN Log(core/console)`

    parser := &fbp.Fbp{Buffer: graph}

    parser.Init()

    err := parser.Parse()

    if err != nil {

        t.Log(err.Error())

        t.Fail()

    }

    parser.Execute()

    if err = parser.Validate(); err != nil {

        t.Log(err.Error())

        t.Fail()

    }

    // At this point you have parser.Processes, parser.Connections, 

    // parser.Inports and parser.Outports data structures...