Add integer properties to a numeric index definition

This procedure describes how to add integer properties to a numeric index definition.

If you do not add integer properties to a numeric index definition, TEXTML Server will assume that all numeric strings are integers. The integer index properties element defines the range of values indexed, how surrounding non-numeric characters are handled, and what characters will be interpreted as thousands separators.

Note: If your numeric index definition applies to monetary units, use decimal properties instead (see Add decimal properties to a numeric index definition).

To add integer properties to a numeric index definition:

Create a numeric index definition. (See Create a numeric index definition.)
Add an <integerindexproperties> element.
To limit the range of values indexed, add an <interval> element. Use the <start> and <end> elements to specify the range:
In the example below, numbers between 11 and 999,999 inclusive will be indexed:
```
<integerindexproperties>
   <interval>
      <start INCLUSIVE="True">
         <number>11</number>
      </start>
      <end INCLUSIVE="True">
         <number>999,999</number>
      </end>
   </interval>
</integerindexproperties>
```
To ignore non-numeric content around numbers, add a <contenttrim> element. Value can be any of the following:
- Left: TEXTML Server ignores non-numeric characters to the left of the number.
- Right: TEXTML Server ignores non-numeric characters to the right of the number.
- Both: TEXTML Server ignores non-numeric characters on both sides of the number.
- None: Numeric strings that include non-numeric characters are not indexed.
```
<integerindexproperties>
   <contenttrim VALUE="Both">
   </contenttrim>
</integerindexproperties>
```
To specify which symbol should be interpreted as a thousands separator, add a <thousandsymbol> element. Value can be any of the following:
- Comma, as in 12,000
- Space, as in 12 000
- Period as in 12.000
- All, all separators (comma, space and period) are ignored. (All the above examples indexed as 12000).
- None: TEXTML Server does not recognize any symbol as a thousands separator, and numbers will be rendered exactly as written.
```
<integerindexproperties> 
   <thousandsymbol VALUE="Comma"/> 
</integerindexproperties>
```
Note: The option "Both" is listed in the DTD but not used; it is available only for compatibility with pre-4.X versions of the TEXTML Server DTD.