::::::::::::::::::::::::: :: REGULAR_EXPRESSIONS :: ::::::::::::::::::::::::: "Regular expressions" are signs used for searching purposes. They are used in BCM in files "convert.bcm", "reject.bcm" and most search. sign describtion ^ finds beginning of line at beginning of string $ finds end of line at end of string . finds any sign * after string finds every search string followed with any sign (or no sign), e.g.: "bo*" finds "bot", "bo" and "boo" etc but not "b" + after string finds every search string followed with any sign but no further signs, e.g.: "bo+" finds "boo" and "booo", but not "bo" and "be" \ means to use following sign as search string, e.g.: "\^" finds "^" and didn't search for beginning of line [ ] finds every single sign, e.g. [bot] finds b, o or t [^] this means negation, e.g. [^bot] finds all signs but no b, o or t [-] means a rangs of letters, e.g. [b-o] finds every letter between b and o Examples: ^[WE][WU]$ finds as search string "WW", "WU", "EW" or "EU" ^S\: finds "S:" only at beginning of search string