The syntax inside the parentheses is simply based on regular expressions. Letters like g, w, b, i etc. define search parameters/ filters, the actual strings are followed by that. Numbers would be filtered with \d as in "digits", stuff like $ defines the start of the search (string anchor) and would not be necessary for single words, but may be relevant for complex search patterns. There's a ton of other stuff. RegEx can be powerful, but is also hard to understand. I suggest you look it up in a generalized web search. Mylenium
... View more