IP address or not?

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An IP address is a 32-bit numeric address written as four numbers separated by periods. Each number can be zero to 255.




Input: An IP address,



Valid format: a.b.c.d where a, b, c or d can be 0 or a number not having 0 at first position.



Output: 0 or 1



Test Cases:




  • 1.160.10.240 - valid


  • 192.001.32.47 - invalid


  • 1.2.3. - invalid


  • 1.2.3 - invalid


  • 0.00.10.255 - invalid


  • 192.168.1.1 - valid


  • 1.2.$.4 - invalid


  • 255.160.0.34 - valid

This is code-golf, so fewest bytes will win!






code-golf string number decision-problem







share|improve this question









New contributor




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  • 1




    I'd recommend a truthy/falsey value rather than 1/0. Or even two distinct sets of outputted values
    – Jo King
    1 hour ago







  • 1




    Also, some more test cases would be nice. Will the input conform to an IP address-like format or can it be stuff like Hello World! or 123.-34.0.1*2?
    – Jo King
    1 hour ago











  • I will add some test cases soon!
    – rv7
    1 hour ago










  • You didn't really answer any questions about the format. For example, the python answer fails a case like a.b.c.d
    – Jo King
    1 hour ago










  • Why 1.1.1.999 is lost
    – l4m2
    1 hour ago














up vote
1
down vote

favorite













An IP address is a 32-bit numeric address written as four numbers separated by periods. Each number can be zero to 255.




Input: An IP address,



Valid format: a.b.c.d where a, b, c or d can be 0 or a number not having 0 at first position.



Output: 0 or 1



Test Cases:




  • 1.160.10.240 - valid


  • 192.001.32.47 - invalid


  • 1.2.3. - invalid


  • 1.2.3 - invalid


  • 0.00.10.255 - invalid


  • 192.168.1.1 - valid


  • 1.2.$.4 - invalid


  • 255.160.0.34 - valid

This is code-golf, so fewest bytes will win!






code-golf string number decision-problem







share|improve this question









New contributor




rv7 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.















  • 1




    I'd recommend a truthy/falsey value rather than 1/0. Or even two distinct sets of outputted values
    – Jo King
    1 hour ago







  • 1




    Also, some more test cases would be nice. Will the input conform to an IP address-like format or can it be stuff like Hello World! or 123.-34.0.1*2?
    – Jo King
    1 hour ago











  • I will add some test cases soon!
    – rv7
    1 hour ago










  • You didn't really answer any questions about the format. For example, the python answer fails a case like a.b.c.d
    – Jo King
    1 hour ago










  • Why 1.1.1.999 is lost
    – l4m2
    1 hour ago












up vote
1
down vote

favorite









up vote
1
down vote

favorite












An IP address is a 32-bit numeric address written as four numbers separated by periods. Each number can be zero to 255.




Input: An IP address,



Valid format: a.b.c.d where a, b, c or d can be 0 or a number not having 0 at first position.



Output: 0 or 1



Test Cases:




  • 1.160.10.240 - valid


  • 192.001.32.47 - invalid


  • 1.2.3. - invalid


  • 1.2.3 - invalid


  • 0.00.10.255 - invalid


  • 192.168.1.1 - valid


  • 1.2.$.4 - invalid


  • 255.160.0.34 - valid

This is code-golf, so fewest bytes will win!






code-golf string number decision-problem







share|improve this question









New contributor




rv7 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.












An IP address is a 32-bit numeric address written as four numbers separated by periods. Each number can be zero to 255.




Input: An IP address,



Valid format: a.b.c.d where a, b, c or d can be 0 or a number not having 0 at first position.



Output: 0 or 1



Test Cases:




  • 1.160.10.240 - valid


  • 192.001.32.47 - invalid


  • 1.2.3. - invalid


  • 1.2.3 - invalid


  • 0.00.10.255 - invalid


  • 192.168.1.1 - valid


  • 1.2.$.4 - invalid


  • 255.160.0.34 - valid

This is code-golf, so fewest bytes will win!






code-golf string number decision-problem




code-golf string number decision-problem






share|improve this question









New contributor




rv7 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question









New contributor




rv7 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|improve this question




share|improve this question








edited 6 mins ago





















New contributor




rv7 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









asked 1 hour ago









rv7

1063




1063




New contributor




rv7 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





New contributor





rv7 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






rv7 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.







  • 1




    I'd recommend a truthy/falsey value rather than 1/0. Or even two distinct sets of outputted values
    – Jo King
    1 hour ago







  • 1




    Also, some more test cases would be nice. Will the input conform to an IP address-like format or can it be stuff like Hello World! or 123.-34.0.1*2?
    – Jo King
    1 hour ago











  • I will add some test cases soon!
    – rv7
    1 hour ago










  • You didn't really answer any questions about the format. For example, the python answer fails a case like a.b.c.d
    – Jo King
    1 hour ago










  • Why 1.1.1.999 is lost
    – l4m2
    1 hour ago












  • 1




    I'd recommend a truthy/falsey value rather than 1/0. Or even two distinct sets of outputted values
    – Jo King
    1 hour ago







  • 1




    Also, some more test cases would be nice. Will the input conform to an IP address-like format or can it be stuff like Hello World! or 123.-34.0.1*2?
    – Jo King
    1 hour ago











  • I will add some test cases soon!
    – rv7
    1 hour ago










  • You didn't really answer any questions about the format. For example, the python answer fails a case like a.b.c.d
    – Jo King
    1 hour ago










  • Why 1.1.1.999 is lost
    – l4m2
    1 hour ago







1




1




I'd recommend a truthy/falsey value rather than 1/0. Or even two distinct sets of outputted values
– Jo King
1 hour ago





I'd recommend a truthy/falsey value rather than 1/0. Or even two distinct sets of outputted values
– Jo King
1 hour ago





1




1




Also, some more test cases would be nice. Will the input conform to an IP address-like format or can it be stuff like Hello World! or 123.-34.0.1*2?
– Jo King
1 hour ago





Also, some more test cases would be nice. Will the input conform to an IP address-like format or can it be stuff like Hello World! or 123.-34.0.1*2?
– Jo King
1 hour ago













I will add some test cases soon!
– rv7
1 hour ago




I will add some test cases soon!
– rv7
1 hour ago












You didn't really answer any questions about the format. For example, the python answer fails a case like a.b.c.d
– Jo King
1 hour ago




You didn't really answer any questions about the format. For example, the python answer fails a case like a.b.c.d
– Jo King
1 hour ago












Why 1.1.1.999 is lost
– l4m2
1 hour ago




Why 1.1.1.999 is lost
– l4m2
1 hour ago










3 Answers
3






active

oldest

votes

















up vote
2
down vote














JavaScript (Node.js), 54 bytes





x=>x.split`.`.every(t=>!k--<=t&t<256&+t+x==t+x,k=4)*!k


Try it online!






share|improve this answer






















  • I have added some test cases!
    – rv7
    1 hour ago










  • @rv7 Still problem?
    – l4m2
    1 hour ago

















up vote
1
down vote














05AB1E, 19 bytes



'.¡©g4Q®0Å?_*®žz‹«P


Try it online or verify all test cases.



Explanation:





'.¡ '# Split the input by "."
 © # Save it in the register (without popping)
 g4Q # Check if the size is 4
 ®0Å?_ # Check for each that they do NOT start with a "0"
 ®žz‹ # Check if each is smaller than 256
 * « # Merge all results together
 P # Check if all are truthy (and output implicitly)





share|improve this answer



























    up vote
    0
    down vote














    Retina 0.8.2, 24 bytes



    .0
    a
    d+.d+.d+.d+


    Try it online!






    share|improve this answer




















    • 255.160.0.34 is a valid IP address
      – rv7
      6 mins ago










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    3 Answers
    3






    active

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    3 Answers
    3






    active

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    active

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    active

    oldest

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    up vote
    2
    down vote














    JavaScript (Node.js), 54 bytes





    x=>x.split`.`.every(t=>!k--<=t&t<256&+t+x==t+x,k=4)*!k


    Try it online!






    share|improve this answer






















    • I have added some test cases!
      – rv7
      1 hour ago










    • @rv7 Still problem?
      – l4m2
      1 hour ago














    up vote
    2
    down vote














    JavaScript (Node.js), 54 bytes





    x=>x.split`.`.every(t=>!k--<=t&t<256&+t+x==t+x,k=4)*!k


    Try it online!






    share|improve this answer






















    • I have added some test cases!
      – rv7
      1 hour ago










    • @rv7 Still problem?
      – l4m2
      1 hour ago












    up vote
    2
    down vote










    up vote
    2
    down vote










    JavaScript (Node.js), 54 bytes





    x=>x.split`.`.every(t=>!k--<=t&t<256&+t+x==t+x,k=4)*!k


    Try it online!






    share|improve this answer















    JavaScript (Node.js), 54 bytes





    x=>x.split`.`.every(t=>!k--<=t&t<256&+t+x==t+x,k=4)*!k


    Try it online!







    share|improve this answer














    share|improve this answer



    share|improve this answer








    edited 1 hour ago

























    answered 1 hour ago









    l4m2

    3,7781430




    3,7781430











    • I have added some test cases!
      – rv7
      1 hour ago










    • @rv7 Still problem?
      – l4m2
      1 hour ago
















    • I have added some test cases!
      – rv7
      1 hour ago










    • @rv7 Still problem?
      – l4m2
      1 hour ago















    I have added some test cases!
    – rv7
    1 hour ago




    I have added some test cases!
    – rv7
    1 hour ago












    @rv7 Still problem?
    – l4m2
    1 hour ago




    @rv7 Still problem?
    – l4m2
    1 hour ago










    up vote
    1
    down vote














    05AB1E, 19 bytes



    '.¡©g4Q®0Å?_*®žz‹«P


    Try it online or verify all test cases.



    Explanation:





    '.¡ '# Split the input by "."
     © # Save it in the register (without popping)
     g4Q # Check if the size is 4
     ®0Å?_ # Check for each that they do NOT start with a "0"
     ®žz‹ # Check if each is smaller than 256
     * « # Merge all results together
     P # Check if all are truthy (and output implicitly)





    share|improve this answer
























      up vote
      1
      down vote














      05AB1E, 19 bytes



      '.¡©g4Q®0Å?_*®žz‹«P


      Try it online or verify all test cases.



      Explanation:





      '.¡ '# Split the input by "."
       © # Save it in the register (without popping)
       g4Q # Check if the size is 4
       ®0Å?_ # Check for each that they do NOT start with a "0"
       ®žz‹ # Check if each is smaller than 256
       * « # Merge all results together
       P # Check if all are truthy (and output implicitly)





      share|improve this answer






















        up vote
        1
        down vote










        up vote
        1
        down vote










        05AB1E, 19 bytes



        '.¡©g4Q®0Å?_*®žz‹«P


        Try it online or verify all test cases.



        Explanation:





        '.¡ '# Split the input by "."
         © # Save it in the register (without popping)
         g4Q # Check if the size is 4
         ®0Å?_ # Check for each that they do NOT start with a "0"
         ®žz‹ # Check if each is smaller than 256
         * « # Merge all results together
         P # Check if all are truthy (and output implicitly)





        share|improve this answer













        05AB1E, 19 bytes



        '.¡©g4Q®0Å?_*®žz‹«P


        Try it online or verify all test cases.



        Explanation:





        '.¡ '# Split the input by "."
         © # Save it in the register (without popping)
         g4Q # Check if the size is 4
         ®0Å?_ # Check for each that they do NOT start with a "0"
         ®žz‹ # Check if each is smaller than 256
         * « # Merge all results together
         P # Check if all are truthy (and output implicitly)






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered 13 mins ago









        Kevin Cruijssen

        32k554173




        32k554173




















            up vote
            0
            down vote














            Retina 0.8.2, 24 bytes



            .0
            a
            d+.d+.d+.d+


            Try it online!






            share|improve this answer




















            • 255.160.0.34 is a valid IP address
              – rv7
              6 mins ago














            up vote
            0
            down vote














            Retina 0.8.2, 24 bytes



            .0
            a
            d+.d+.d+.d+


            Try it online!






            share|improve this answer




















            • 255.160.0.34 is a valid IP address
              – rv7
              6 mins ago












            up vote
            0
            down vote










            up vote
            0
            down vote










            Retina 0.8.2, 24 bytes



            .0
            a
            d+.d+.d+.d+


            Try it online!






            share|improve this answer













            Retina 0.8.2, 24 bytes



            .0
            a
            d+.d+.d+.d+


            Try it online!







            share|improve this answer












            share|improve this answer



            share|improve this answer










            answered 13 mins ago









            Okx

            12.2k27100




            12.2k27100











            • 255.160.0.34 is a valid IP address
              – rv7
              6 mins ago
















            • 255.160.0.34 is a valid IP address
              – rv7
              6 mins ago















            255.160.0.34 is a valid IP address
            – rv7
            6 mins ago




            255.160.0.34 is a valid IP address
            – rv7
            6 mins ago










            rv7 is a new contributor. Be nice, and check out our Code of Conduct.









             

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