How to compare two lists?












1















As shown below, the code fails to redefine the color when it is white (e.g. rgb(1,1,1)).



documentclass{standalone}
usepackage{tikz}
usepackage{xcolor}
begin{document}
foreach code/col in {%
{1,1,1}/white,
{1,1,0}/yellow,
{1,0,1}/pink
}{

ifx {code} {1,1,1}
definecolor{tempcolor}{rgb}{1,0,0}
else
definecolor{tempcolor}{rgb}{code}
fi
textcolor{tempcolor}{col};
}

end{document}


enter image description here



Why is my condition failing?










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    1















    As shown below, the code fails to redefine the color when it is white (e.g. rgb(1,1,1)).



    documentclass{standalone}
    usepackage{tikz}
    usepackage{xcolor}
    begin{document}
    foreach code/col in {%
    {1,1,1}/white,
    {1,1,0}/yellow,
    {1,0,1}/pink
    }{

    ifx {code} {1,1,1}
    definecolor{tempcolor}{rgb}{1,0,0}
    else
    definecolor{tempcolor}{rgb}{code}
    fi
    textcolor{tempcolor}{col};
    }

    end{document}


    enter image description here



    Why is my condition failing?










    share|improve this question









    New contributor




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























      1












      1








      1








      As shown below, the code fails to redefine the color when it is white (e.g. rgb(1,1,1)).



      documentclass{standalone}
      usepackage{tikz}
      usepackage{xcolor}
      begin{document}
      foreach code/col in {%
      {1,1,1}/white,
      {1,1,0}/yellow,
      {1,0,1}/pink
      }{

      ifx {code} {1,1,1}
      definecolor{tempcolor}{rgb}{1,0,0}
      else
      definecolor{tempcolor}{rgb}{code}
      fi
      textcolor{tempcolor}{col};
      }

      end{document}


      enter image description here



      Why is my condition failing?










      share|improve this question









      New contributor




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












      As shown below, the code fails to redefine the color when it is white (e.g. rgb(1,1,1)).



      documentclass{standalone}
      usepackage{tikz}
      usepackage{xcolor}
      begin{document}
      foreach code/col in {%
      {1,1,1}/white,
      {1,1,0}/yellow,
      {1,0,1}/pink
      }{

      ifx {code} {1,1,1}
      definecolor{tempcolor}{rgb}{1,0,0}
      else
      definecolor{tempcolor}{rgb}{code}
      fi
      textcolor{tempcolor}{col};
      }

      end{document}


      enter image description here



      Why is my condition failing?







      compare






      share|improve this question









      New contributor




      Tony Tan 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




      Tony Tan 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 1 min ago









      Werner

      441k679721667




      441k679721667






      New contributor




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









      asked 42 mins ago









      Tony TanTony Tan

      112




      112




      New contributor




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





      New contributor





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






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






















          1 Answer
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          0














          You're technically hoping to see whether code equals 1,1,1 as a text string. You can use pdfstrcmp{<strA>}{<strB>} for this. It returns -1/0/1 if <strA> is smaller than/equal to/greater than <strB> (lexicographically):



          enter image description here



          documentclass{article}

          usepackage{tikz}

          begin{document}

          foreach code/col in {%
          {1,1,1}/white,%
          {1,1,0}/yellow,%
          {1,0,1}/pink%
          }{

          ifnumpdfstrcmp{code}{1,1,1}=0
          definecolor{tempcolor}{rgb}{1,0,0}%
          else
          definecolor{tempcolor}{rgb}{code}%
          fi
          textcolor{tempcolor}{col};
          }

          end{document}




          share























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            1 Answer
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            active

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            active

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            0














            You're technically hoping to see whether code equals 1,1,1 as a text string. You can use pdfstrcmp{<strA>}{<strB>} for this. It returns -1/0/1 if <strA> is smaller than/equal to/greater than <strB> (lexicographically):



            enter image description here



            documentclass{article}

            usepackage{tikz}

            begin{document}

            foreach code/col in {%
            {1,1,1}/white,%
            {1,1,0}/yellow,%
            {1,0,1}/pink%
            }{

            ifnumpdfstrcmp{code}{1,1,1}=0
            definecolor{tempcolor}{rgb}{1,0,0}%
            else
            definecolor{tempcolor}{rgb}{code}%
            fi
            textcolor{tempcolor}{col};
            }

            end{document}




            share




























              0














              You're technically hoping to see whether code equals 1,1,1 as a text string. You can use pdfstrcmp{<strA>}{<strB>} for this. It returns -1/0/1 if <strA> is smaller than/equal to/greater than <strB> (lexicographically):



              enter image description here



              documentclass{article}

              usepackage{tikz}

              begin{document}

              foreach code/col in {%
              {1,1,1}/white,%
              {1,1,0}/yellow,%
              {1,0,1}/pink%
              }{

              ifnumpdfstrcmp{code}{1,1,1}=0
              definecolor{tempcolor}{rgb}{1,0,0}%
              else
              definecolor{tempcolor}{rgb}{code}%
              fi
              textcolor{tempcolor}{col};
              }

              end{document}




              share


























                0












                0








                0







                You're technically hoping to see whether code equals 1,1,1 as a text string. You can use pdfstrcmp{<strA>}{<strB>} for this. It returns -1/0/1 if <strA> is smaller than/equal to/greater than <strB> (lexicographically):



                enter image description here



                documentclass{article}

                usepackage{tikz}

                begin{document}

                foreach code/col in {%
                {1,1,1}/white,%
                {1,1,0}/yellow,%
                {1,0,1}/pink%
                }{

                ifnumpdfstrcmp{code}{1,1,1}=0
                definecolor{tempcolor}{rgb}{1,0,0}%
                else
                definecolor{tempcolor}{rgb}{code}%
                fi
                textcolor{tempcolor}{col};
                }

                end{document}




                share













                You're technically hoping to see whether code equals 1,1,1 as a text string. You can use pdfstrcmp{<strA>}{<strB>} for this. It returns -1/0/1 if <strA> is smaller than/equal to/greater than <strB> (lexicographically):



                enter image description here



                documentclass{article}

                usepackage{tikz}

                begin{document}

                foreach code/col in {%
                {1,1,1}/white,%
                {1,1,0}/yellow,%
                {1,0,1}/pink%
                }{

                ifnumpdfstrcmp{code}{1,1,1}=0
                definecolor{tempcolor}{rgb}{1,0,0}%
                else
                definecolor{tempcolor}{rgb}{code}%
                fi
                textcolor{tempcolor}{col};
                }

                end{document}





                share











                share


                share










                answered 3 mins ago









                WernerWerner

                441k679721667




                441k679721667






















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










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













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