Problem using parameters in functions

codemonkee

• October 19, 2010 00:00

• Answered

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I'm using the following parameters defined in an external file:
MIN=10
DIR=C\:/workspace

When I try using them in a function the ${MIN} parameter works as expected, but ${DIR} produces an error of "Encountered ":" at line 4, column 16". How can I use string parameters correctly?

Also, could you point me to an example of eval() function usage? Can't find a working one anywhere.

Thanks.

• 

  avackova

  • October 20, 2010 07:25

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  Hello,
  parameters are just replaced by theirs values, so when you use parameter as string you have to quote it:
  

  integer min = ${MIN};
  string dir = "${DIR}";

  
  is evaluated as:
  

  
  integer min = 10;
  string dir = "C\:/workspace";

  
  while
  

  integer min = ${MIN};
  string dir = ${DIR};

  
  is evaluated as:
  

  
  integer min = 10;
  string dir = C\:/workspace;

  
  what (properly) leads to parse error.
  
  eval function proved to be useless, so it has been removed from ctl2.
• 

  codemonkee

  • October 20, 2010 16:27

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  Thanks.
  
  Just curious, in this example would you need to resort to something like "${" + "DIR}" to output a string of "${DIR}" so it wouldn't be replaced by the parameter value?
• 

  avackova

  • October 21, 2010 09:08

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  Yes, the only way to get string like ${param} for existing param is to split it into two strings :)

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