<filename>helpers.py
#--------------------------------------------------------------------------
# The MIT License (MIT)
#
# Copyright (c) 2014 <NAME>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

#--------------------------------------------------------------------------
## @file    set_nic_properties.py
#  @brief   Can be used to enable/disable DHCP and (in case of disabled DHCP)
#           set static IP/Default Gateway/Default DNS for the selected NIC.
#
#  @author  <NAME> [<EMAIL>]
#  @version 0.1

#--------------------------------------------------------------------------
# Module Imports
import re

#--------------------------------------------------------------------------
# Module Global Attributes
# --- N/A

#--------------------------------------------------------------------------
# Module Global Variables
# --- N/A

#--------------------------------------------------------------------------
# Module Local Attributes
# --- N/A

#--------------------------------------------------------------------------
# Module Internal Variables
# --- N/A

#--------------------------------------------------------------------------
# Function: get_validated_input
def get_validated_input(prompt, regex_str = '^.*?$', loop_till_valid = False):
    """
    Get validated user input.

    @param prompt String: Prompt to show
    @param regex_str String: String containing the regular expression for validating the input
    @param loop_till_valid bool: If True, continously prompt user in case of invalid input
    @return tuple: Validity of input (True/False) and regex match result ('None' if invalid )
    """
    is_input_valid = False
    search_result = None
    loop_once = True
    regex = re.compile(regex_str)

    while loop_till_valid or loop_once:
        loop_once = False
        user_input = raw_input(prompt)
        match_obj = regex.search(user_input)

        if(match_obj):
            search_result = match_obj.group(0)
            is_input_valid = True
            break

    return (is_input_valid, search_result)

<filename>helpers.py
#--------------------------------------------------------------------------
# The MIT License (MIT)
#
# Copyright (c) 2014 <NAME>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

#--------------------------------------------------------------------------
## @file    set_nic_properties.py
#  @brief   Can be used to enable/disable DHCP and (in case of disabled DHCP)
#           set static IP/Default Gateway/Default DNS for the selected NIC.
#
#  @author  <NAME> [<EMAIL>]
#  @version 0.1

#--------------------------------------------------------------------------
# Module Imports
import re

#--------------------------------------------------------------------------
# Module Global Attributes
# --- N/A

#--------------------------------------------------------------------------
# Module Global Variables
# --- N/A

#--------------------------------------------------------------------------
# Module Local Attributes
# --- N/A

#--------------------------------------------------------------------------
# Module Internal Variables
# --- N/A

#--------------------------------------------------------------------------
# Function: get_validated_input
def get_validated_input(prompt, regex_str = '^.*?$', loop_till_valid = False):
    """
    Get validated user input.

    @param prompt String: Prompt to show
    @param regex_str String: String containing the regular expression for validating the input
    @param loop_till_valid bool: If True, continously prompt user in case of invalid input
    @return tuple: Validity of input (True/False) and regex match result ('None' if invalid )
    """
    is_input_valid = False
    search_result = None
    loop_once = True
    regex = re.compile(regex_str)

    while loop_till_valid or loop_once:
        loop_once = False
        user_input = raw_input(prompt)
        match_obj = regex.search(user_input)

        if(match_obj):
            search_result = match_obj.group(0)
            is_input_valid = True
            break

    return (is_input_valid, search_result)

#-------------------------------------------------------------------------- # The MIT License (MIT) # # Copyright (c) 2014 <NAME> # # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software and associated documentation files (the "Software"), to deal # in the Software without restriction, including without limitation the rights # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell # copies of the Software, and to permit persons to whom the Software is # furnished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be included in all # copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE # SOFTWARE. #-------------------------------------------------------------------------- ## @file    set_nic_properties.py #  @brief   Can be used to enable/disable DHCP and (in case of disabled DHCP) #           set static IP/Default Gateway/Default DNS for the selected NIC. # #  @author  <NAME> [<EMAIL>] #  @version 0.1 #-------------------------------------------------------------------------- # Module Imports #-------------------------------------------------------------------------- # Module Global Attributes # --- N/A #-------------------------------------------------------------------------- # Module Global Variables # --- N/A #-------------------------------------------------------------------------- # Module Local Attributes # --- N/A #-------------------------------------------------------------------------- # Module Internal Variables # --- N/A #-------------------------------------------------------------------------- # Function: get_validated_input Get validated user input.
 
     @param prompt String: Prompt to show
     @param regex_str String: String containing the regular expression for validating the input
     @param loop_till_valid bool: If True, continously prompt user in case of invalid input
     @return tuple: Validity of input (True/False) and regex match result ('None' if invalid )