sirp-dsi-converter 1.1.2b0

A converter between D-SI and SI Reference Point unit formats

SIRP-D-SI Converter Service

This software ensures the reliability of the D-SI Syntax by testing its internal syntax consistencies and by providing metadata within the SI Reference Point (SIRP), which relates to prefixes, units, and exponents.

The software accepts Base or Compound Units in D-SI unit syntax and provides several pieces of information about the input:

• Its consistency according to the D-SI Syntax.

• Its transformation into Prefixes, Units and Exponents SIRP Syntax.

• Its representation as a Permanent Identifier according to SIRP.

• Its representation as an RDF structure according to SIRP.

• Its Metadata from the SIRP framework.

Code Files

Several D-SI Compound Units are being shown as examples to demonstrate the functionality of the software.

transformation.py:

This file handles the validation and transformation logic.

app.py:

This file serves as the flask interface.

test.py:

This file serves as an example of how the classes from the transformation.py can be used inside any other software

Classes

There are four main classes that can be accessed externally:

• class verboseDsiCompoundUnitValidation

The function messageResponse(compoundunit) within the class provides detailed information regarding the validation of the D-SI Compound Unit. If the input Compound Unit is valid, the information detailed above. If it is invalid, the class returns different messages depending on whether the Compound Unit is a valid D-SI unit or not. Additionally, it offers suggestions for correcting the input Compound Unit.

• class jsonDsiCompoundUnitValidation

The function messageResponse([string]) within the class provides detailed information regarding the validation of the D-SI Compound Unit. If the input Compound Unit is valid, the information detailed above. If it is invalid, the class returns different messages depending on whether the Compound Unit is a valid D-SI unit or not. Additionally, it offers suggestions for correcting the input Compound Unit.

• class compoundUnitValidation

The funtion validation([string]) within the class performs the validation and stores the results in variables that can be accessed externally.

• class dsiValidator

This is used to interact from the power shell.

Example Usage

Prerequisites for everything except the web server:

This is an example of how to list things you need to use the software and how to install them.

• python

  pip install rdflib
  pip install re
  pip install sys
  pip install pprint
  

dsiValidator

• python

python trasformation.py -h
#shows the help

• python

python trasformation.py -json \metre
#inputs the DSI unit after the '-json' and returns information about the unit in json format

• python

python trasformation.py -v \metre
#inputs the DSI unit after the '-v' and returns information about the unit in a verbose way

test.py

#input:
info=compoundUnitValidation('\\metre')
info.validation()
#variables that can be accessed:
print(f"The {info.input_compound_unit} validation is: {info.valid_dsi_unit}")
print(f"The unit has an SIRP correspondance: {info.output_sirp_correspondance}")
print(f"The system has a message: {info.output_human_message}")
print(f"The SIRP PID Unit is: {info.output_pid}")
print(f"The SIRP Unit is: {info.output_compound_unit}")

Terminology

• D-SI Prefix: (e.g. \milli, \kilo, etc.)

• D-SI Unit: (e.g. \gram, \candela, \metre, etc.)

• D-SI Exponent: (e.g. \tothe{5}, etc.)

• SIRP Prefix: (e.g. milli, kilo, etc.)

• SIRP Unit: (e.g. gram, candela, metre, etc.)

• SIRP Symbol: (e.g. m, s, kg)

• SIRP Exponent: (e.g. -1, 2, 5, etc.)

• SIRP Compound Unit Symbol: (e.g. m-1, m·s-2, kg)

• SIRP Compound Unit PID: (e.g. https://si-digital-framework.org/SI/units/millisecond-1)