Commands to convert fixed-record files described by a copybook record layout from EBCDIC to ASCII, converting only the alpha-numeric fields.
The Gem can also be used to create scripts.
Add this line to your application's Gemfile:
gem 'copybook_utils'And then execute:
$ bundle
Or install it yourself as:
$ gem install copybook_utils
A command convert_from_ebcdic is in the gem bin directory. It is
recommended to copy convert_from_ebcdic from the bin directory to an
appropriate place on your system (also copy convert_from_ebcdic.bat to
the same place if on a Windows system).
Run the command from a terminal or command prompt. The command usage is:
file>```
This command parses the ```copybook file``` that contains the record layout for
the ```EBCDIC data file```. The ```EBCDIC data file``` is read record by record
converting the alpha-numeric fields from EBCDIC to ASCII. The output is written
to ```ASCII converted file```.
All binary fields (e.g.: comp-3, etc) are copied from the input records to the
output records unchanged.
## Gem Usage
To use CopybookUtils:
```require 'copybook_utils'```
### Converting Copybooks to XML
To convert a copybook to XML (wrapper around cb2xml Java jar from the copybook
to XML project):
```result = CopybookUtils.copybook_to_xml( copybook_filename )```
Result contains:
result[:xml] # XML string representing copybook result[:error_out] # error info from conversion process result[:process_status] # the Process::Status from running java; non-zero is an error
The XML may be parsed with your favorite XML parser (e.g.: Nokogiri).
### Converting Data Files between ASCII and EBCDIC
CopybookUtils.to_ascii( copybook_xml, data_file_input, data_file_output ) CopybookUtils.to_ebcdic( copybook_xml, data_file_input, data_file_output )
These methods take the XML from ```CopybookUtils.copybook_to_xml``` and convert
the ```data_file_input``` creating the ```data_file_output```. The input file
must be a fixed-record file with the record layout described by the copybook.
Note that fixed-record files do not have newlines at the end of each record.
## Development
To install this gem onto your local machine, run `bundle exec rake install`.
To release a new version, update the version number in `version.rb`, and then
run `bundle exec rake release` to create a git tag for the version, push git
commits and tags, and push the `.gem` file to
[rubygems.org](https://rubygems.org).
## Contributing
1. Fork it ( https://github.com/[my-github-username]/copybook_utils/fork )
2. Create your feature branch (`git checkout -b my-new-feature`)
3. Commit your changes (`git commit -am 'Add some feature'`)
4. Push to the branch (`git push origin my-new-feature`)
5. Create a new Pull Request