Trim Characters Functionality

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Jake

• January 03, 2019 11:35

Hi,

I would like to ask what is the best way to trim characters in IB? For example, with string "1234-456789", I only want to look the first 4 characters, how would I trim that out? I saw <stringModify>, but I don't see it has something like this?

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  michiel

  • January 08, 2019 15:33

  You could use <setInstallerVariableFromRegex> to trim the first four characters:

   <setInstallerVariableFromRegEx>
     <name>trimmed</name>
     <text>1234-56789</text> 
     <pattern>"^(....).*</pattern>
     <substitution\1<substitution/>
   </setInstallerVariableFromRegEx>
  
  

   

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  Jake

  • January 09, 2019 13:11

  Thanks, I was able to get it using something like this this: 

  <setInstallerVariableFromRegEx>
      <name>value1</name>
      <pattern>^(.*?)-(.*?)$</pattern>
      <substitution>\1</substitution>
      <text>${value}</text>
    </setInstallerVariableFromRegEx>

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  BitRock support

  • January 11, 2019 16:53

  It's great to hear you found a solution.

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  Jake

  • August 01, 2019 13:40

  Hello,
  Related to this optic, can you help me how I trim the first 6 or 7 char?

   

  For example, if I want the first 7 char of "1234-5678-9012", which is "1234-56:. What would be the pattern and substitution logic? I've tried a few (like below) without success.

  <pattern>^[0-9]{0,6}$</pattern>

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  michiel

  • August 01, 2019 16:44

  Can you try this pattern?

  <setInstallerVariableFromRegEx>
      <name>value1</name>
      <pattern>^[0-9-]{0,7}</pattern>
      <substitution>\1</substitution>
      <text></text>
    </setInstallerVariableFromRegEx>

   

   

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  Tam Bui

  • August 02, 2019 11:58

  Hi,

  I've tried that, but I got the last 7 digit instead of the first 7.

  
  Whole Narrow: 7746-1810-8801
  
  Info: Narrow: 10-8801
  
  

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  michiel

  • August 02, 2019 16:03

  Hi Tam,

  Sorry, I misunderstood your question. Could you try this instead:

  <setInstallerVariableFromRegEx>
      <name>value1</name>
      <pattern>^([0-9-]{0,7}).*$</pattern>
      <substitution>\1</substitution>
      <text></text>
    </setInstallerVariableFromRegEx>

   

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  Jake

  • August 02, 2019 18:27

  Thanks! this works for me.

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