rsb:match

The rsb:match keyword is similar to the rsb:equals keyword, but permits complex matching rules.

Parameters:

• pattern: Specifies the reference value (or pattern) against which to compare.
• type: Specifies how matching is done. The default value is "exact", which requires an exact match of the value (in which case rsb:match is identical to rsb:equals). Other supported types are "regex", for regular expression matching, and "glob", which supports a simple expression model similar to the one used in filename patterns (e.g., *.txt).
• value: Specifies the value to match.

Control Attributes:

• This keyword does not have any control attributes.

Examples:

In the example below, a regex pattern is used to check for floating point numbers. If the pattern is matched then the item will be pushed to the output:

<rsb:match pattern="\[-+\]?\[0-9\]*\.?\[0-9\]*" type="regex" value="-3.14">
    <rsb:push/>
</rsb:match>

RSSBus uses the .NET Framework version of regular expression matching. For more information, please consult the .NET Framework documentation in MSDN.

See Also:

• rsb:select: To learn how to make multiple comparisons.