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Full Discussion: Array help (variable substitution).
Top Forums Shell Programming and Scripting Array help (variable substitution). Post 302113964 by dsimpg1 on Wednesday 11th of April 2007 04:04:46 PM
Old 04-11-2007
No, I'm trying to do this:

cmlist01 has a b c d e
cmlist02 has f g h i
cmlist03 has j k l

For the total in cmlist01, I should see 5 items.
For the total in cmlist02, I should see 4 items.
For the total in cmlist03, I should see 3 items.

As a result, I could do:

print "There are ${#cmlist01[@]} items in $listnbr:"
which prints "There are 5 itmes in cmlist01."

However, I want to do all of this in a for loop and have it derive the cmlistnn from the variable $listnbr (which is does just fine as evidenced in the output from the print statement). However, if I try to get the count (number of items in the array) using listnbr (instead of hardcoding cmlistnn in each statement), all I ever get is 1.

If I set the variable listnbr=cmlist01, I should see 5 items, but am only seeing 1 when I do:

print "There are ${#listnbr[@]} items in $listnbr:"
which prints "There are 1 itmes in cmlist01."

The main part of the code that I need this for is:

Code:
while [ $i -lt ${#cmlist03[@]} ]
     do
          ID=${cmlist03[$i]}
          echo "Processing $i with ${cmlist03[$i]}"

Maybe you just can't do what I'm trying to do...
Last edited by dsimpg1; 04-11-2007 at 05:20 PM..
 

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LEARN ABOUT DEBIAN

tangram::type::array::scalar

Tangram::Type::Array::Scalar(3pm)			User Contributed Perl Documentation			 Tangram::Type::Array::Scalar(3pm)

NAME

       Tangram::Type/Array/Scalar - map Perl array of strings or numbers

SYNOPSIS

	  use Tangram::Core;
	  use Tangram::Type/Array/Scalar; # always

	  $schema = Tangram::Schema->new(
	     classes => { NaturalPerson => { fields => {

	     flat_array =>
	     {
		interests =>
		{
		   table => 'NP_int',
		   sql => 'VARCHAR(50)',
		},

		lucky_numbers => 'int', # use defaults
	     }

DESCRIPTION

       Maps references to a Perl array. The persistent fields are grouped in a hash under the "array" key in the field hash.

       The array may contain only 'simple' scalars like integers, strings or real numbers. It may not contain references. For arrays of objects,
       see Tangram::Type::Array::FromMany and Tangram::Type::Array::FromOne.

       Tangram uses a table to save the state of the collection. The table has three columns, which contain

       * the id of the container object
       * the position of the element in the array
       * the value of the element

       The field names are passed in a hash that associates a field name with a field descriptor. The field descriptor may be either a hash or a
       string. The hash uses the following fields:

       * type
       * table
       * sql

       Optional field "type" specifies the type of the elements. If the type is "string"Tangram quotes the values as they are passed to the data-
       base.  Not specifying a "type" is exactly equivalent to specifying "string".

       Optional field "table" sets the name of the table that contains the elements. This defaults to 'C_F', where C is the class of the contain-
       ing object and F is the field name.

       Optional field "sql" specifies the type that deploy() (see Tangram::Deploy) should use for the column containing the elements. If this
       field is not present, the SQL type is derived from the "type" field: if "type" is "string" (or is absent) VARCHAR(255) is used; otherwise,
       the "type" field is interpreted as a SQL type.

       If the descriptor is a string, it is interpreted as the value of the "type" field and all the other fields take the default value.

perl v5.8.8							    2006-03-29					 Tangram::Type::Array::Scalar(3pm)
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