processor.py

import crop
import re

class processor:
    # This class concerns all processor functions
    # Parent class for all the more specific processor classes
    def __init__(self):
        self.image_cropper = crop.crop() # Cropping tool

    # Checks if a string has numbers
    def hasnumbers(self, input):
        return bool(re.search(r'\d', input))

    # Checking for names
    # Checking for all UPPER CASE words and obtaining name by process of elimination
    def namevalidator(self, input):
        # Ensuring that it is not PAN Number
        if not self.hasnumbers(input):
            return input
        return False

        # Checking output for PANNumber, returns the number if found
    def pannumbervalidator(self, input):
        regexmatch = re.search(r'[A-Z]{5}[0-9]{4}[A-Z]', input)
        if regexmatch is not None:
            return regexmatch.group()
        else:
            return False

    # Checking output for Date of Birth, returns the number if found
    def datevalidator(self, input):
        regexmatch = re.search(r'\d{2}[-/]\d{2}[-/]\d{4}', input)
        if regexmatch is not None:
            return regexmatch.group()
        else:
            return False