Re: alpha numeric comparision

Hi, The temp_var string can start with either an alphabet or a number but the whole string is alpha numeric.


    if($temp_var1 == $temp_var2 and $temp_var2 == $temp_var3)
        {printf LOG"1";}
        if($temp_var2 != $temp_var1 and $temp_var3 == $temp_var2)
        {printf LOG"2";}
        if($temp_var2 eq $null and $temp_var3 eq $null)               
+ 
        {printf LOG"3";}
        if($temp_var3 == $temp_var1 and $temp_var2 eq $null)
        {printf LOG"4";}
        if($temp_var1 != $temp_var2 and $temp_var3 eq $null)
        {printf LOG"6";}
        if($temp_var2 != $temp_var1 and $temp_var3 != $temp_var1)
        {printf LOG"5";}
        if($temp_var1 == $temp_var2 and $temp_var3 != $temp_var1)
        {printf LOG"5";}
        if($temp_var2 == $temp_var1 and $temp_var3 eq $null)
        {printf LOG"5";}
[download]

Prad

Comment on Re: alpha numeric comparision Download Code

Replies are listed 'Best First'.
Re^2: alpha numeric comparision by nobull (Friar) on Jan 28, 2005 at 13:02 UTC
There is no clue there as to what you are trying to achieve.	[reply]
Re^3: alpha numeric comparision by prad_intel (Monk) on Jan 28, 2005 at 13:28 UTC
I have 3 variables,I want to compare those 3 based on a particular logic All i want now is the variables are alpha numeric, i tried regex but i am unable to achieve the above Hope i get a guiding light. Prad	[reply]
Re^4: alpha numeric comparision by Jasper (Chaplain) on Jan 28, 2005 at 17:14 UTC
This doesn't help. Post some examples of values for the variables, and what the results of the 'comparison' would be.	[reply]
Re^4: alpha numeric comparision by nobull (Friar) on Jan 28, 2005 at 17:38 UTC
I have 3 variables,I want to compare those 3 based on a particular logic All i want now is the variables are alpha numeric, i tried regex but i am unable to achieve the above Your problem has nothing to do with Perl. You are trying to implement "a particular logic" in Perl but you are unable to describe that "particular logic" even in human language. You are making the common mistake of jumping ahead to how without first pausing at what. Hmm... I've just re-read what you said... All i want now is the variables are alpha numeric ...is that really all you are asking? To check that a string is alphanumeric with a regex `!/[^[:alnum:]]/` or if you don't want a negated regex `/^[[:alnum:]]*\z/` Note: only pedants use `\z` most of the time. Most people use `$`. Reading the manual to discover the subtle difference is left as an exercise for the reader.	[reply] [d/l] [select]