string-filtering/prettyprint2.py at main · jmboby/string-filtering · GitHub

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input = '{"a":"b","e":{"f":"g"},"c":"d"}'

''' desired output is:
{
  "a":"b",
  "e":{
    "f":"g"
  },
  "c":"d"
}
'''

## The below doesn't quite work due to chars being repeated and it is not aware of indent levels, so it can't handle multiple nests

newoutput = ""
first_index = input.find('{')
second_index = input.find('{', first_index +1)

# # Loop through input string and add desired newlines and indents to the output var via concatenating
for index, char in enumerate(input):
  if index == first_index:
    newoutput += char + "\n" + " " * 2
  if char == ',':
    newoutput += char + "\n" + " " * 2
  if index == second_index:
      newoutput += char + "\n" + " " * 4
  if char == '}':
    newoutput += "\n" + char
  else:
    newoutput += char

print(newoutput)


# import re

# def find_nested_curly_braces(input):
#     pattern = re.compile(r'(\{.*?(\{(.*?).*\})*?\})')
#     matches = pattern.finditer(input)
#     for match in matches:
#         print(f"Found nested curly braces: {match.group(0)}")

# text = """This is an example {string with nested curly braces {also with curved braces } and more} stuff"""
# find_nested_curly_braces(input)

# # Create new output var and initialise with empty string