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Package pecan
Short Description An event-driven, non-blocking shell for ReactPHP based on the Symfony Console Shell.
License MIT
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Informations about the package pecan
Pecan
Event-driven, non-blocking shell for ReactPHP.
Pecan (/pɪˈkɑːn/) provides a non-blocking alternative to the shell provided in the Symfony Console component. Additionally, Pecan includes a basic, framework-agnostic shell component called Drupe that can be used as the basis for building custom shells.
Shells
Drupe
Pecan\Drupe is a standalone component for building event-driven console components. I like to think of it as Pecan without the Shell.
Pass an EventLoopInterface to start() listening for input.
Drupe Events
running- The shell is running.data- Data was received fromSTDIN.error- Indicates an I/O problem.close- The shell was closed.
Shell
Pecan\Shell extends Drupe to provide an event-driven wrapper for a standard Symfony\Component\Console\Application. It can be used as a drop-in replacement for Symfony\Component\Console\Shell.
Note: To maintain a Symfony Console-like workflow, calling
$shell->run()onPecan\Shellstarts the EventLoop, so make sure it gets called last.
Shell Events
Shell emits the same events as Drupe.
Readline
Pecan\Readline provides an interface for reading line-by-line input from STDIN. This component is heavily inspired by, and strives for parity with the NodeJS Readline Component.
Readline Events
line- A line has been read fromSTDIN.pause- Reading from the stream has been paused.resume- Reading from the stream has resumed.error- The input stream encountered an error.close- Then input stream was closed.
Console
Pecan\Console\Console provides a standard interface for working with STDOUT and STDERR. It is inspired heavily by the NodeJS Console Component and takes some functionality from the Symfony Console Component
Output
The Output classes extend the base Console Output. StreamOutput wraps a single stream resource, while ConsoleOutput contains both the STDOUT and STDERR streams.
StreamOutputInterfaceConsoleOutputInterfacePecanOutput
Using Pecan
Using Drupe as a Standalone Shell
Using Shell with Symfony Console Applications
Here is a shell that echoes back any input it receives, and then exits.
Injecting An EventLoopInterface into Pecan\Shell
Unless you pass \Pecan\Shell an object implementing EventLoopInterface as its second constructor method, the Shell will get one from the EventLoop Factory. Keep this in mind if you want to integrate Pecan into an existing ReactPHP project.
