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Full Discussion: Optimize the nested IF
Top Forums Shell Programming and Scripting Optimize the nested IF Post 302591971 by machomaddy on Sunday 22nd of January 2012 05:12:37 AM
Old 01-22-2012
Optimize the nested IF

Hi,
I have to assign a value for a varaiable based on a Input. I have written the below code:
Code:
if [ "$procnam" == "admission" ]
 then
  nf=65
elif [ "$procnam" == "reporting" ]
 then
  nf=46
elif [ "$procnam" == "transfer" ]
 then
  nf=164
elif [ "$procnam" == "diagnosis" ]
 then
  nf=545
elif [ "$procnam" == "emergeny" ]
 then
  nf=56
elif [ "$procnam" == "inpatient" ]
 then
  nf=37
else
exit 0
fi

Can someone give me an idea of how to optimize it/make this short?
Also, what should be done to do a incase-sensivite comparison?

Like,
Code:
if [ "$procnam" == "Admission" ]
 then
  nf=65
elif [ "$procnam" == "REPORTING" ]
 then
  nf=46
...
fi

Smilie
 

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XMLIF(1)							       xmlif								  XMLIF(1)

NAME
xmlif - conditional processing instructions for XML SYNOPSIS
xmlif [attrib=value...] DESCRIPTION
xmlif filters XML according to conditionalizing markup. This can be useful for formatting one of several versions of an XML document depending on conditions passed to the command. Attribute/value pairs from the command line are matched against the attributes associated with certain processing instructions in the document. The instructions are <?xmlif if?> and its inverse <?xmlif if not?>, <?xmlif elif?> and its inverse <?xmlif elif not?>, <?xmlif else?>, and <?xmlif fi?>. Argument/value pairs given on the command line are checked against the value of corresponding attributes in the conditional processing instructions. An `attribute match' happens if an attribute occurs in both the command-line arguments and the tag, and the values match. An `attribute mismatch' happens if an attribute occurs in both the command-line arguments and the tag, but the values do not match. Spans between <?xmlif if?> or <?xmlif elif?> and the next conditional processing instruction at the same nesting level are passed through unaltered if there is at least one attribute match and no attribute mismatch; spans between <?xmlif if not?> and <?xmlif elif not?> and the next conditional processing instruction are passed otherwise. Spans between <?xmlif else?> and the next conditional-processing tag are passed through only if no previous span at the same level has been passed through. <?xmlif if?> and <?xmlif fi?> (and their `not' variants) change the current nesting level; <?xmlif else?> and <?xmlif elif?> do not. All these processing instructions will be removed from the output produced. Aside from the conditionalization, all other input is passed through untouched; in particular, entity references are not resolved. Value matching is by string equality, except that "|" in an attribute value is interpreted as an alternation character. Thus, saying foo='red|blue' on the command line enables conditions red and blue. Saying color='black|white' in a tag matches command-line conditions color='black' and color='white'. Here is an example: Always issue this text. <?xmlif if condition='html'?> Issue this text if 'condition=html' is given on the command line. <?xmlif elif condition='pdf|ps'?> Issue this text if 'condition=pdf' or 'condition=ps' is given on the command line. <?xmlif else?> Otherwise issue this text. <?xmlif fi?> Always issue this text. AUTHOR
Eric S. Raymond <esr@snark.thyrsus.com> Author of xmlif program Linux April 2009 XMLIF(1)
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