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 <start> is ``^/regex/'', it will search from the start of file. 15If <end> is a regex, it will search 16starting at the line given by <start>. 17+ 18 19- +offset or -offset 20+ 21This is only valid for <end> and will specify a number 22of lines before or after the line given by <start>. 23 24+ 25If ``:<regex>'' is given in place of <start> and <end>, it denotes the range 26from the first funcname line that matches <regex>, up to the next 27funcname line. ``:<regex>'' searches from the end of the previous `-L` range, 28if any, otherwise from the start of file. 29``^:<regex>'' searches from the start of file.