> Date: Sat, 12 Nov 2022 12:40:11 +0100 > From: Vincent Lefevre <vinc...@vinc17.net> > > > > Oops, I misread the file. I actually think that it is correct. > > > IMHO, to get the tree structure, you should not follow the menu, > > > but only the "File:" lines. > > > > You can't: SPC and DEL are supposed to traverse the tree, not just the > > current level of the tree. SPC does depth-first search, and DEL does > > its opposite. The File: lines only tell us the nodes that are to the > > left, to the right, and up, but not down. > > But "down" is the reverse of "up".
No, it isn't. It is only the reverse of "up" if the node structure is a perfect tree. But Texinfo doesn't require such a structure, and in fact info.info is a notable example of a valid Info file whose node structure is not a tree (and for a good reason).