For example, you can probably boil water, crack an egg, ... I frequently use regular expressions to do things like change the size of text on the PCB silkscreen for only certain types of components.

In both scenarios, the variable regex is an object, which exposes different methods we can use to interact with the regular expression. However, the first example has a more familiar look ...

When creating regular expressions for OnCommand Insight automatic resolution, you can configure output format by entering values in a field named FORMAT. The default setting is \1, which means that a ...

Before looking at how Groovy improves on the handling of the regular expression, I round out the Java example that was started above to also include an example of Java’s Matcher class in action ...

In the above example, the regular expression is actually matched pretty fast, but in many cases the expression is too complex and the input string too large for the engine to optimize.

For example, the expression \d{5} specifies exactly five numeric digits. You can also specify a series of at least four and no more than seven characters by appending {4,7} to the sequence.