ExcelFormulaParser 1.0.1

A framework to break down Excel Formula strings into a parsable and modifiable JSON data structure.

ExcelFormulaParser

Description

ExcelFormulaParser extends openpyxl to enhance formula parsing capabilities in Excel spreadsheets. While openpyxl handles spreadsheet management well, its formula parsing features are limited. This project aims to build a robust structure for mapping and manipulating Excel formulas through a comprehensive, user-friendly data structure. Features

 - Formula Parsing: Decompose formulas into a structured format, making them easy to manipulate and analyze.

 - Formula Manipulation: Implement methods like formula.translate() to adjust formulas based on cell repositioning.

 - Analytics: Analyze formulas to extract components count, such as the number of functions used.

Progress and Contributions

The project is in active development, aiming for significant functionality completion by May 2024. Contributions are welcome! If you'd like to help:

Fork the repository and create a pull request with your additions.
Ensure your code is accompanied by updated or new tests that validate your changes.

Current Work

Enhancing the formula.translate() method to shift references based on specified start and end cells.
Developing features to provide analytical insights into formula components.

installation

pip install ExcelFormulaParser

Usage

To use ExcelFormulaParser, start by importing the module and initializing a Formula object with an Excel formula string. Here’s how you can parse a formula and manipulate it:

import ExcelFormulaParser as efp

# Initialize with a formula
f = efp.Formula("=SUM(A1, A2)")

# Access the parsed formula
parsed_formula = f.parsed_formula

# To reflect changes back to a formula string after modifications:
f_str = str(f)  # Outputs the original or modified formula string

# dictionary structure of this formula: 
# {
#     "function': '=SUM(A1, A2)
#     "components": {
#         "name": "SUM"
#         "arguments": [
#             {"reference": "A1"
#              "components": {
#                  "sheet_name": None,
#                  "column_letter": "A",
#                  "column_number": 1,
#                  "row_number": 1}},
#
#             {"reference": "A2"
#              "components": {
#                  "sheet_name": None,
#                  "column_letter": "A",
#                  "column_number": 1,
#                  "row_number": 2}},
#          ]
#     }
# }

Structure

Explore the src/Models directory for class details and src/Tests for unit tests corresponding to each class. The primary interface is through the Formula class, which serves as a facade for the underlying Parser class handling the detailed parsing logic.