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Regsub – curly brace issue

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  • September 21, 2007 at 1:26 pm #49535
    Ray Mullen
    Participant

      Hi,

      I have a translate that generates a hl7 message. Within the translate I have a few regsub commands that convert , to E | to F e.t.c and that works fine, however I have just encountered a problem when the user has entered a  ” { (Curly Brace) ” into the message, it plays havoc with the regsub.

      I prob need to replace the curly brace at the start, and then replace it back again before i release the message. I Have tried lots of different combinations but dont seem to be able to get the code to work, any one any ideas how to use regsub to replace a {.

      Thanks in advance

      Ray

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      • September 21, 2007 at 2:30 pm #62357
        John Hamilton
        Participant

          Are you looking for something like this

          tcl>                                

          tcl>set CURLY “This is a {CURLY TEST}

          This is a {CURLY TEST} done          

          tcl>regsub -all “{” $CURLY “^$” STEP1

          1                                    

          tcl>regsub -all “}” $STEP1 “$^” STEP2

          1                                    

          tcl>echo $STEP2                      

          This is a ^$CURLY TEST$^ done        

          tcl>                                

          At least this should give you a start.  I’m sure if I worked at it we could get both brackets at the same time.

        • September 24, 2007 at 8:01 am #62358
          Ray Mullen
          Participant

            Hi John , I have tried this code and it works fine from the command line but i can’t seem to get it to work within a translate ,  I have the following example but when i run it through the testing tool it gives me an error

            set c_output [lindex $xlateInVals 0]

            set a $c_output

            regsub -all “{” $a “^$” c_output

            set xlateOutVals

          • September 24, 2007 at 12:23 pm #62359
            Tom Rioux
            Participant

              Take this line:   regsub -all “{” $a “^$” c_output

              and change to: regsub -all “{” $a “^$” c_output

              Once I added the backslash, it worked fine in my test Xlate.

              Let me know how it works for you.

              Thanks….

              Tom Rioux

            • September 24, 2007 at 12:30 pm #62360
              John Hamilton
              Participant

                That is correct with in the Xlate you need to escape out the curly brackets.

                Also you may want to change “^$” “$^” to something a little more easy to deal with those both have special meaning and when you go to move the back to brackets it will be tough.  

                Maybe use “Cu_iN” and “Cu_ouT”  or something with out special characters.

              • September 24, 2007 at 2:05 pm #62361
                Ray Mullen
                Participant

                  Thomas & John, thanks a million for you help , that worked just fine.

                  Ray 😀

                • September 24, 2007 at 2:49 pm #62362
                  Charlie Bursell
                  Participant

                    This would be much simplier and more egonomic if you used the string map command.

                    tcl>                                

                    tcl>set CURLY “This is a {CURLY TEST}

                    set CURLY  [string map

                      $CURLY]

                      Regular expressions are powerful but not needed for every occasion.

                  • September 25, 2007 at 6:26 am #62363
                    Ray Mullen
                    Participant

                      Ok Charlie , will try that out, thanks for your reply, appreciate it

                      Ray

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