/ 
Fsdb-3.4
River stage zero No dependents
/ Fsdb::Filter::yaml_to_db

NAME

yaml_to_db - convert a subset of YAML into fsdb

SYNOPSIS

yaml_to_db <source.yaml

DESCRIPTION

Converts a very limited subset of YAML into Fsdb format.

The input is YAML-format (not fsdb). The input is parsed as YAML, assuming the file is an array of dictionary entries. We extract the dictionary names and output this as an fsdb table.

We also flatten one level of lists into comma-separated values.

The output is tab-separated fsdb. (Someday more general field separators should be supported.)

OPTIONS

This module also supports the standard fsdb options:

-d

Enable debugging output.

-i or --input InputSource

Read from InputSource, typically a file name, or - for standard input, or (if in Perl) a IO::Handle, Fsdb::IO or Fsdb::BoundedQueue objects.

-o or --output OutputDestination

Write to OutputDestination, typically a file name, or - for standard output, or (if in Perl) a IO::Handle, Fsdb::IO or Fsdb::BoundedQueue objects.

--autorun or --noautorun

By default, programs process automatically, but Fsdb::Filter objects in Perl do not run until you invoke the run() method. The --(no)autorun option controls that behavior within Perl.

--help

Show help.

--man

Show full manual.

SAMPLE USAGE

Input:

- name: ACM
  role: sponsor
  alttext: ACM, the Association for Computing Machinery
  image: logos/acm-small.jpg
  link:  https://www.acm.org/
  date: 2016-01-01

- name: SIGCOMM
  role: sponsor
  alttext: SIGCOMM, ACM'S Special Interest Group on Communication
  image: logos/sigcommlogo.png
  link:  http://sigcomm.org
  date: 2016-01-02

- name: SIGMETRICS
  role: sponsor
  alttext: SIGMETRICS, ACM'S Special Interest Group on Performance Evaluation
  image: logos/sigmetrics-small.png
  link:  http://www.sigmetrics.org
  date: 2016-01-03

Command:

yaml_to_db <gnupod.yaml

Output:

#fsdb -F t alttext date image link name role
ACM, the Association for Computing Machinery	2016-01-01	logos/acm-small.jpg	https://www.acm.org/	ACM	sponsor
SIGCOMM, ACM'S Special Interest Group on Communication	2016-01-02	logos/sigcommlogo.png	http://sigcomm.org	SIGCOMM	sponsor
SIGMETRICS, ACM'S Special Interest Group on Performance Evaluation	2016-01-03	logos/sigmetrics-small.png	http://www.sigmetrics.org	SIGMETRICS	sponsor
#   | yaml_to_db

SEE ALSO

Fsdb.

CLASS FUNCTIONS

new

$filter = new Fsdb::Filter::yaml_to_db(@arguments);

Create a new yaml_to_db object, taking command-line arguments.

set_defaults

$filter->set_defaults();

Internal: set up defaults.

parse_options

$filter->parse_options(@ARGV);

Internal: parse command-line arguments.

setup

$filter->setup();

Internal: setup, parse headers.

run

$filter->run();

Internal: run over each rows.

AUTHOR and COPYRIGHT

Copyright (C) 2011-2018 by John Heidemann <johnh@isi.edu>

This program is distributed under terms of the GNU general public license, version 2. See the file COPYING with the distribution for details.