Examples of the trim option

The following definition is used in the examples

D data            S            100A    VARYING

Assume that file data.xml contains the following lines:

<text>
    line1
    line2
</text>

Here is another view of this same file where

’_’ : represents a blank

‘T’ : represents a tab

‘F’ : represents a line-feed

<text>____F
Tline1F
____line2F
</text>F

The default of trim=all is used. Leading and trailing whitespace is removed. Strings of internal whitespace are changed to a single blank.
```
  xml-into data %XML('data.xml' : 'doc=file');
  // data = 'line1 line2'
```
Option trim=none is specified. No whitespace is trimmed from text data. Two views of the resulting value are shown.
1. The line-feed and tab characters are shown as ’?’.
2. The blanks, line-feed, and tab characters are shown in the same way as in the second view of the document above where
  
  ’_’ : represents a blank
  
  ‘T’ : represents a tab
  
  ‘F’ : represents a line-feed
```
  xml-into data %XML('data.xml' : 'doc=file trim=none');
  // data = '    ??line1?    line2?'
  // data = '____FTline1F____line2F'
```