How to comment a grammar rule in yacc and a regex matching rule in lex?











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down vote

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I want to comment this matching rule in lex. I don't want to delete it. I just want it commented so anyone sees the lex file later be informed that this part has been commented



<tickPragma_name_1>. {

    myyyless(0);

    BEGIN (0);

}


how I can do that? I know that I can comment the C code inside the {} .but I want to comment the whole rule.






flex-lexer yacc lex







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    up vote
    0
    down vote

    favorite












    I want to comment this matching rule in lex. I don't want to delete it. I just want it commented so anyone sees the lex file later be informed that this part has been commented



    <tickPragma_name_1>. {
    
    myyyless(0);
    
    BEGIN (0);
    
}


    how I can do that? I know that I can comment the C code inside the {} .but I want to comment the whole rule.






    flex-lexer yacc lex







    share|improve this question


























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I want to comment this matching rule in lex. I don't want to delete it. I just want it commented so anyone sees the lex file later be informed that this part has been commented



      <tickPragma_name_1>. {
      
    myyyless(0);
      
    BEGIN (0);
      
}


      how I can do that? I know that I can comment the C code inside the {} .but I want to comment the whole rule.






      flex-lexer yacc lex







      share|improve this question















      I want to comment this matching rule in lex. I don't want to delete it. I just want it commented so anyone sees the lex file later be informed that this part has been commented



      <tickPragma_name_1>. {
      
    myyyless(0);
      
    BEGIN (0);
      
}


      how I can do that? I know that I can comment the C code inside the {} .but I want to comment the whole rule.






      flex-lexer yacc lex




      flex-lexer yacc lex






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 27 at 17:37









      sepp2k

      291k37592604




      291k37592604










      asked Nov 11 at 9:04









      Amr Rady

      42110




      42110
























          1 Answer
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          up vote
          2
          down vote



          accepted










          You can surround the rule with /* and */, just as in C, but with two major caveats:




          1. Everything needs to be indented by at least one space, including the /* (and, I believe, the contents).


          2. There cannot be any nested comments in the action.







          share|improve this answer





















          • Thanks, the indentation note made it works.
            – Amr Rady
            Nov 12 at 10:02











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          1 Answer
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          active

          oldest

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          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes








          up vote
          2
          down vote



          accepted










          You can surround the rule with /* and */, just as in C, but with two major caveats:




          1. Everything needs to be indented by at least one space, including the /* (and, I believe, the contents).


          2. There cannot be any nested comments in the action.







          share|improve this answer





















          • Thanks, the indentation note made it works.
            – Amr Rady
            Nov 12 at 10:02















          up vote
          2
          down vote



          accepted










          You can surround the rule with /* and */, just as in C, but with two major caveats:




          1. Everything needs to be indented by at least one space, including the /* (and, I believe, the contents).


          2. There cannot be any nested comments in the action.







          share|improve this answer





















          • Thanks, the indentation note made it works.
            – Amr Rady
            Nov 12 at 10:02













          up vote
          2
          down vote



          accepted







          up vote
          2
          down vote



          accepted






          You can surround the rule with /* and */, just as in C, but with two major caveats:




          1. Everything needs to be indented by at least one space, including the /* (and, I believe, the contents).


          2. There cannot be any nested comments in the action.







          share|improve this answer












          You can surround the rule with /* and */, just as in C, but with two major caveats:




          1. Everything needs to be indented by at least one space, including the /* (and, I believe, the contents).


          2. There cannot be any nested comments in the action.








          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 11 at 19:58









          rici

          150k19129194




          150k19129194












          • Thanks, the indentation note made it works.
            – Amr Rady
            Nov 12 at 10:02


















          • Thanks, the indentation note made it works.
            – Amr Rady
            Nov 12 at 10:02
















          Thanks, the indentation note made it works.
          – Amr Rady
          Nov 12 at 10:02




          Thanks, the indentation note made it works.
          – Amr Rady
          Nov 12 at 10:02


















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