psfclj

PSF parser for JVM written in clojure.

Building

Requires Leiningen to run, see their docs for more information.

Build and Install as MAVEN dependency for Java InterOp

$ lein pom && lein install

Build JAR/UBERJAR

$ lein jar
$ lein uberjar

Build Standalone Executable

Simply run make and the Makefile will take care of it. The executable will be ./target/psfconvert.

Usage

After building with lein you can run:

$ java -jar psfclj-0.1.0-standalone.jar [options] <psf-file>

The standalone executable can be run like so:

$ psfconvert [options] <psf-file>

Depending on the option, this will produce output to STDOUT. This can be redirected to a file, or processed further with something like jq or gron. If no <psf-file> is specified, it will try to read from STDIN.

Options

• -g <grammar> Specify path to alternative <grammar>.
• -j JSON output (default).
• -c CSV output (values only).
• -h or --help for a short help.

Exit States

• 0: Success!
• -1: Failed with parse error, usually caused by wrong sytnax.
• -2: Erronious command line arguments.
• -3: No output format specified.

Example

# Read ./noise2.noise, pipe json output in gron, 
# grep for "fn.xf2" of "I0.M0.m1" and inspect with bat
$ ./target/psfconvert -j ./noise2.noise | gron | grep "I0.M0.m1" | grep "fn.xf2" | bat

# Pipe json ouput into fzf for interactive search
$ ./target/psfconvert -j ./noise2.noise | gron | fzf

# Read from stdin and redirect output into file
$ cat ./noise2.noise | ./target/psfconvert -c > noise2.csv

PSF BNF

The default grammar can be found in resources/psf.bnf:

<psf> = <section> *

<section> = HEADER <attribute> *
          | TYPE   <attribute> *
          | SWEEP  <attribute> *
          | TRACE  <attribute> *
          | VALUE  <attribute> *
          | END

<attribute> = <key> [<unit>] <values> [<prop>]
            | <key> <types> <prop>
            | <key> <struct> [<prop>]

<key> = " * "

<unit> = " * "

values = <value>
       | ( <value> * )

<value> = #'\S+'
        | " * "

<types> = <type>
        | <type> *

<type> = FLOAT
       | DOUBLE
       | COMPLEX

<prop> = PROP( <attribute> * )

<struct> = STRUCT( <attribute> * )

Java API Reference

After installing with

$ lein pom && lein install

the psfclj*.jar should be in your local repository and classpath.

Example

import java.io.File;
import java.io.IOException;
import org.apache.commons.io.FileUtils;
import clojure.lang.APersistentMap;
import psfclj.PSFParser.Parser;

public class PSFParserExample {

  public static void main(String[] args) throws IOException {
    
    Parser parser = new Parser();
    
    String psfContent = FileUtils.readFileToString(
        new File("./noise2.noise"));
    
    APersistentMap map = parser.parsePSF(psfContent);
      
  }
}

TODO

• CSV Output
• Comment Code
• Read PSF with <unit> in VALUE section.
• Implemented tests
• XML Output

License

Copyright © 2020 Yannick Uhlmann

This program and the accompanying materials are made available under the terms of the the beer-ware license (Revision 42): As long as you retain this notice you can do whatever you want with this stuff. If we meet some day, and you think this stuff is worth it, you can buy me a beer in return.