On 2022-10-21 at 16:16, Greg Wooledge wrote: > On Fri, Oct 21, 2022 at 03:09:32PM -0400, The Wanderer wrote: > >> IOW, each seems to be half of the usual '\b' (edge of a word) set. >> With the default sed behavior (not sure whether that's basic >> regular expressions or extended regular expressions, in the >> nomenclature of the info document), you can use replace the latter >> with an alternation of both of the former: > > The things you're discussing here, \< \> \b, are all GNU extensions. > They're *not* part of the POSIX standard BRE and ERE languages. > > This doesn't mean you should stop using them. Just that you should > be aware that your script is not going to be portable if you use > them.
Sure. My point was more that it's not terribly hard to find out what the "special meaning to GNU sed" that this syntax has is; you just have to do a bit of searching in the info document. -- The Wanderer The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man. -- George Bernard Shaw
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