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#!/usr/bin/env python3
'''
Parse the exported table of tg23-koblingsplan (copypaste via libreoffice -> save as csv (standard values everywhere)) into a sensible yaml file
Will handle merged cells (e.g. keep previous iterations value if current iteration is empty)
'''
import csv
import yaml
with open('tg23-koblingsplan.csv', newline='') as csvfile:
csv_data = csv.reader(csvfile, delimiter=',', quotechar='"')
# for loop counter
i = 0
# Holds the data from the current iteration
current_iteration = {}
# Holds all data. List of objects, each object represents a row in the table
dataset = []
for row in csv_data:
i += 1
# skip first 2 lines, they only contain table headers
if i <= 2:
continue
# To be able to access previous iteration fields, so we can handle merged cells
prev_iteration = current_iteration.copy()
# The not-so-delicate blob of code for assigning data to object keys
current_iteration = {}
current_iteration['a_type'] = row[0] if len(row[0].strip()) > 0 else prev_iteration['a_type']
current_iteration['a_model'] = row[1] if len(row[1].strip()) > 0 else prev_iteration['a_model']
current_iteration['a_node'] = row[2] if len(row[2].strip()) > 0 else prev_iteration['a_node']
current_iteration['a_interface'] = row[3].strip() if len(row[3].strip()) > 0 else prev_iteration['a_interface']
current_iteration['a_ae'] = row[4] if len(row[4].strip()) > 0 else prev_iteration['a_ae']
current_iteration['b_type'] = row[5] if len(row[5].strip()) > 0 else prev_iteration['b_type']
current_iteration['b_model'] = row[6] if len(row[6].strip()) > 0 else prev_iteration['b_model']
current_iteration['b_node'] = row[7] if len(row[7].strip()) > 0 else prev_iteration['b_node']
current_iteration['b_interface'] = row[8].strip() if len(row[8].strip()) > 0 else prev_iteration['b_interface']
current_iteration['b_ae'] = row[9] if len(row[9].strip()) > 0 else prev_iteration['b_ae']
current_iteration['cable_type'] = row[10] if len(row[10].strip()) > 0 else prev_iteration['cable_type']
dataset.append(current_iteration)
print(yaml.dump(dataset, default_flow_style=False, sort_keys=False))
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