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#FOR

#FOR( tag [ ( filter ) ] )

statements

#END

tagAn XML tag.
filterA logical expression indicating which specific tag instances to process.
statementsThe Template statements to execute.
#ENDThe #FOR structure terminator.

The #FOR structure loops through the XML, searching for each instance of the tag that meets the filter expression and executes the statements on the data contained within that tag.

Example:

  // This script processes XML and generates ECL COUNT statements
  // which run against the datasets and filters specified in the XML.
  XMLstuff :=
   '<section>'+
       '<item>'+
           '<dataset>person</dataset>'+
           '<filter>firstname = \'RICHARD\'</filter>'+
       '</item>'+
       '<item>'+
           '<dataset>person</dataset>'+
           '<filter>firstname = \'JOHN\'</filter>'+
       '</item>'+
       '<item>'+
           '<dataset>person</dataset>'+
           '<filter>firstname = \'HENRY\'</filter>'+
       '</item>'+
   '</section>';
  
  LOADXML(XMLstuff);
  #DECLARE(CountStr); // Declare CountStr
  #SET(CountStr, '' ); // Initialize it to an empty string
  #FOR(item)
     #APPEND(CountStr,'COUNT(' + %'dataset'% + '(' + %'filter'% + ' ));\n');
  #END
  
  OUTPUT(%'CountStr'%); // output the string just built
  %CountStr% // then execute the generated "COUNT" actions
  
  // Note that the "CountStr" will have 3 COUNT actions in it:
  //   COUNT(person(person.firstname = 'RICHARD'));
  //   COUNT(person(person.firstname = 'JOHN'));
  //   COUNT(person(person.firstname = 'HENRY'));

See Also: #LOOP, #DECLARE