Formats the number to a human-readable form by adding separating characters between groups
of digits. By default, it formats the numbers using English-language settings, but they can be
changed in OPT configuration with these directives:
parseIntDecimals - how many decimals after dot we want to present.
parseIntDecPoint - separator between fractions and integer parts.
parseIntThousands - separator between each group of thousands.
Example 2.17. parseInt() function
<p>{parse_int(3483745.3490)}</p>
{* will display: 3,483,745.349 *}