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Generic Pipe (=>) Token - Parser Reference

Pipes a reformatted STDOUT stream from the left hand command to STDIN of the right hand command

Description

This token behaves much like the | pipe would except it injects format generic into the pipeline. The purpose of a formatted pipe is to support piping out to external commands which don’t support Murex data types. For example they might expect arrays as lists rather than JSON objects).

Examples

» ja: [Mon..Wed] => cat
Mon
Tue
Wed

The above is literally the same as typing:

» ja: [Mon..Wed] -> format generic -> cat
Mon
Tue
Wed

To demonstrate how the previous pipeline might look without a formatted pipe:

» ja: [Mon..Wed] -> cat
["Mon","Tue","Wed"]

» ja: [Mon..Wed] | cat
["Mon","Tue","Wed"]

» ja: [Mon..Wed]
[
    "Mon",
    "Tue",
    "Wed"
]

See Also

• Arrow Pipe (->) Token: Pipes STDOUT from the left hand command to STDIN of the right hand command
• POSIX Pipe (|) Token: Pipes STDOUT from the left hand command to STDIN of the right hand command
• Pipeline: Overview of what a “pipeline” is
• STDERR Pipe (?) Token: Pipes STDERR from the left hand command to STDIN of the right hand command
• <> / read-named-pipe: Reads from a Murex named pipe
• format: Reformat one data-type into another data-type
• ja (mkarray): A sophisticated yet simply way to build a JSON array