forexy 2026.7.3

EXFOR utility codes

ForEXy

Utility codes for the EXFOR Library

Requirements

• pylatexenc
• pyspellchecker
• requests

Input files

The following input files are available on the ForEXy zipped file on the NRDC Software website:

• JSON dictionary (e.g., dict_9133.json)
• Supplemental dictionary file for DIC227 (e.g., dict_arc_sup.227)
• CSS file for J4VIEW and X4VIEW (e.g., exfor.css)
• CINDA code list for CODUSE (e.g., x4_coduse.cin)
• Technical term dictionary for SPELLS (e.g., x4_spells.dic)

Installation

pip install forexy

Modules

Module	Purpose
CODDIC	Analyse use of codes in J4 library.
DIC227	Produce Archive Dictionary 227 from a NUBASE file.
DICA2J	Convert Archive dictionaries to a JSON Dictionary.
DICDIS	Prepare Archive and Backup dictionaries for distribution.
DICJ2A	Convert a JSON Dictionary to Archive dictionaries.
DICJ2T	Convert a JSON Dictionary to a Transmission dictionary.
DIRINI	Split an EXFOR library tape into EXFOR entry files.
DIRUPD	Update the EXFOR entry files with an EXFOR transmission tape.
EXTMUL	Extraction of a dataset from a multiple reaction formalism subentry.
J4TOX4	Convert a J4 file to an EXFOR file.
J4VIEW	Convert a J4 file to an HTML file.
MAKCOV	Produce a data table and covariance matrix from a J4 file.
MAKJ4L	Produce and update J4 library.
MAKLIB	Merge EXFOR entry files into a single library tape.
POIPOI	Remove pointers from a J4 file.
REFBIB	Extract bibliography of reference by using DOI.
REFDOI	Obtain DOI for articles registered in CrossRef.
SEQADD	Add record identification to an EXFOR file.
SPELLS	Check English spell in free text in EXFOR format.
X4TOJ4	Convert an EXFOR file to a J4 file.
X4VIEW	Convert an EXFOR file to an HTML file.

References

• Naohiko Otuka, Vidya Devi, Osamu Iwamoto, "EXFOR utility codes (ForEXy) and their application to neutron fission cross section evaluation", Appl.Radiat.Isot.225(2025)111903 / [arXiv] ( https://doi.org/10.48550/arXiv.2505.03758).
• Naohiko Otuka, "ForEXy: Utility Codes for EXFOR Library", Report IAEA-NDS-0244, International Atomic Energy Agency, 2025.