1<start> and <end> can take one of these forms: 2 3- number 4+ 5If <start> or <end> is a number, it specifies an 6absolute line number (lines count from 1). 7+ 8 9- /regex/ 10+ 11This form will use the first line matching the given 12POSIX regex. If <start> is a regex, it will search from the end of 13the previous `-L` range, if any, otherwise from the start of file. 14If <end> is a regex, it will search 15starting at the line given by <start>. 16+ 17 18- +offset or -offset 19+ 20This is only valid for <end> and will specify a number 21of lines before or after the line given by <start>. 22 23+ 24If ``:<regex>'' is given in place of <start> and <end>, it denotes the range 25from the first funcname line that matches <regex>, up to the next 26funcname line.