Mac outliners, one-pane, modeless and general-purpose like text editors?

Posted by L. S. Russell
Jun 24, 2009 at 08:27 PM

I am new here but I am looking for something similar:
I would only add, “cross platform” to the list because I use both Winders & OSX.

? one pane
??multiple windows, tiled or overlapping, so I can work with multiple files or multiple parts of the same file
??word wrap as you type and erase
??for preformatted or wide text, you should be able to turn off word wrap
??outline items should accommodate tabs and returns
??I suppose outline items can be restricted to one or more entire lines of text
??multiple paragraphs in an outline item might be nice
??no ?arrange? vs. ?edit? modes as many one-pane outliners (like Opal) have
??no ?view? vs. ?edit? modes as Wikis have
??true tree structured documents; I?m not sure what extra features (columns, links, something beyond trees) I need
??commands like hide/show, gather, sort, etc. that make use of the tree structure

These features would be nice too:
??keyboard-driven so I can enter lots of data and do some editing
??also mouse-driven for more intensive editing
??separate the outline structure from the rendering, so say you can put children to the right of parents instead of below
??allow the user to incrementally extend or change the program where possible, by changing the source code or by writing small extensions
??allow the user to create more outline-editing operations