There is only one operation here, and it is parameterized in two dimensions. It is:

"Here" means where the caret was before the operation was invoked. When the first argument is "from here to end of", the operation moves the caret to the end of the indicated range of characters. Similarly for "from here to begin of". Branch, node, word, character, and current selection are all as in Tioga. A "line" is a (possibly empty) sequence of characters between nodebreaks or newlines. The "subword" concept is meant to deal with our naming convention for compound names --- it picks out the component names. The selection will always be a point or range of characters, as far as Tioga is concerned (as opposed to, say, words, nodes or branches).

Some of the combinations are interpreted with some creativity, in order that this operation be more intuitive and useful. Here are some of the more creative interpretations (see if you can get by without reading them):

Unfortunately, there are no very good holes (big enough) in the current Tioga command encoding. The author is not particularly happy with his current choice of encoding for KeyboardTioga commands --- better ideas are solicited. At the time of this writing, the encoding for selection commands is as follows.

The selection operation is invoked by a two-or-three key chord. It always includes the Keyboard key (previously known as Next, or middle spare; amazingly, this key is labelled "Keyboard" on Dandelions). It also always includes a key that indicates the second parameter (the "level" of selection). The optional third is a logical shift key that gives the first parameter. The encodings of the parameters are based sometimes on positional mnemonics and sometimes on textual ones. Here are the encoding of the parameters:

Unfortunately, this encoding collides slightly with the standard Tioga command encoding. The collision is with the Tioga Next commands. Their standard encoding is striking Keyboard (known to Tioga as Next), possibly with control or shift keys held down. KeyboardTioga changes this encoding to be striking N while holding down Keyboard and also possibly control or shift keys.

Fortunately, the encoding is only a matter of TIPpery --- it's easy to experiment with other (hopefully better) encodings.

There is also only one operation here, also parameterized in two dimensions: it is select next/previous X, for some character X. This operation changes the selection to be exactly one character, the first X after (or before) the carat.

The selection operation is invoked by a two-to-four key chord. While holding down the Scan key (previously known as Swat, right-hand-control, or lower spare; this key is labelled "STOP" on Dandelions), strike the key (possibly while also holding down a shift key) for character to search for --- this searches forward; also holding down the BackSapce key makes the search go backward. For examples: to search for the next space, hit Scan-Space; to search for the previous ampersand, hit Scan-BS-Shift-7; to search for the next tab, do not hit Scan-LeftCtrl-I --- holding down both the left and right control keys tells the swat-watcher you want to do a world-swap debug!

Note that this usurps the function of the right-hand control key --- you can no longer use it to invoke the standard Tioga "control keystrokes".

Fortunately, the encoding is only a matter of TIPpery --- it's easy to experiment with other (hopefully better) encodings.

Here are all those things you've been wishing were on the keyboard, but aren't.

The selection operation introduced earlier is actually just a special case of a more general select-and-operate operation, whose generality was pared from the keystroke encoding in order to reduce the complexity of the chords that must be struck. Select-And-Operate is parameterized in three dimensions. Through different combinations of parameters, a lot of useful operations can be achieved (e.g., CaretOnly; delete/move forward/backward one character, word, subword, line; MakePendingDelete; MakeNotPendingDelete). The operation is

"Here" means where the caret was before the operation was invoked. When the first argument is "from here to end of", the operation moves the caret to the end of the indicated range of characters. Similarly for "from here to begin of". Branch, node, word, character, and current selection are all as in Tioga. A "line" is a (possibly empty) sequence of characters between nodebreaks or newlines. The "subword" concept is meant to deal with our naming convention for compound names --- it picks out the component names. The selection will always be a point or range of characters, as far as Tioga is concerned (as opposed to, say, words, nodes or branches).

Some of the combinations are interpreted with some creativity, in order that this operation be more intuitive and useful. Here are some of the more creative interpretations (see if you can get by without reading them):

This operation is invoked by a sequence of three Tioga ATOMs. The first two give the first two parameters, and the last gives the final parameter and activates the operation. The ATOMs used are:

This operation is invoked by a sequence of three Tioga ATOMs. The first says whether to search forward or backward. The second and third give the character to search for. The third gives a character, and the second says whether to use the uppercase or lowercase version (only meaningful when the third is a letter). The ATOMs used are:

Only one new operation needed to be implmented here: the one that inverts the "pending-deletedness" of the selection. It is associated with the ATOM $KbdInvertPendingDelete.