Artifact 69586bcfb332587fc9187427eb30d6b5c0a1f95234dfe073a339abb8f6b4ac2e:
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r38/lisp/csl/cslbase/termed.txt
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2011-09-02 18:13:33
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/* * To the extent that (a) it is convenient and (b) that I have completed * development of this code, the behaviour of the Windowed interface in * FXTerminal.cpp and of the console mode one in termed.c are compatible. * The key-bindings are intended to be "emacs-like" so they support command * to move backwards and forwards by characters and words, to delete * characters or words, to adjust case and to scan up and down through a * history. More elaborate variants on this idea would permit the user to * re-assign key-bindings. I have not implemented that at all. Partly to * try to keep my code simple and partly because I feel customised key- * bindings are a source of terrible confusion. * * Because of my intended use for this code I have allocated some keys to * menu shortcuts that will not be relevant to other people but that are * useful to me. NOt all keys can and not all keys do work under both * FXTerminal and termed environments. I annotate this key-list with a * ($) for things not active under FXTerminal and with (!) for not active * or incomplete under termed. * * * * KEYBOARD HANDLING * * * Key-bindings that I hope to make work in both terminal and windowed mode, * on both Unix/Linux, Microsoft Windows and the Macintosh. * * Note that ALT can be achieved either by holding the ALT key at the * same time as the listed key, or by pressing ESC before the key. * * ALT takes priority over SHIFT, and Control takes priority over ALT so * that a character is only treated as having one attribute. If it has none * it just inserts itself. * * Where I put a "-" in this table it means that I do not define the meaning * of the keystroke. In the short term at least that will either cause the * keystroke to be ignored, inserted, or treated the same way as the * corresponding character without Control or ALT. In the longer term I may * assign behaviours to some of those keys. I also want to reserve the * possibility of making keys with both Control and ALT have yet different * effects. * *Key Control ALT * * @ Set Mark ($!) - (note this key is not * always detected!) * A To beginning - (also Home key) * B Back char Back word (also left arrow key) * C ^C interrupt Capitalise word * D Delete forward Delete word (also the Delete key) * Also ^D before any other input on a line sends EOF * E To end [Edit menu] (!) (also End key) * F Forward char Foward word (also right arrow key) * G ^G interrupt/cancel input (!) - <<also escape search mode>> * * H Delete back Del word back * I TAB [File menu] (!) (also TAB key) * J Newline - * K Kill line - * L Clear screen Lowercase word * M Newline [Module load menu] ($!) * N Next history Search history next (also down arrow key) * O Discard output (!?) [Font menu] (!) * * P Previous history Search history prev (also up arrow key) * Q Resume output (!?) - * R Redisplay [Break menu] (!) * S Pause output (!?) [Switch menu] (!) * T Transpose chars - * U Undo($!)escape srch Uppercase word * V Quoted insert ($!) - * W Del Word back Copy region ($!) * * X eXtended command ($!)Obey command ($!) * Y Yank (=Paste) (!) - * Z Stop execution (!?) - * [ =ESC: Meta prefix - * \ Quit - * ] - - * _ - Copy previous word * ^ Reinput (!) - * * * Arrow etc keys... * * -> forward char/word * <- backwards char/word * ^ history prev/search history prev * v history next/search history next * home start line/start buffer * end end line/end buffer * * * The items shown as menus behave as follows: * * ALT-E C cut (all !) * O copy * P paste * R reinput * A select all * L clear * D redraw * H home * E end * ALT-I R read (all !) * S save * L save selected text * P print * N print selected text * X exit * ALT-M &Module menu shortcut - load a module ($! not used here) * ALT-O F select new font (all !) * R reset to default font * W reset font and window to default * Alt-R C as ^C, interrupt current computation (all !) * D as ^O, discard pending output * G as ^G, interrupt & backtrace current computation * P as ^S, pause output * R as ^Q, resume output * X as ^X, stop current computation * ALT-S &Switch menu shortcut - flip a switch ($! not used here) * */