Restore protocol.md

code-docs/abbr.txt

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+common abbreviations used throughout the code:
+
+bg    background
+btn   button
+cb    checkbox
+cfg   configuration
+clt   client (like in Conga)
+cm    CodeMirror
+cmd   command, a 2-or-3-uppercase-letter code for an IDE action
+col   colour; column
+com   comment
+dlg   dialog
+D     Dyalog
+ed    editor
+el    element
+eol   end of line
+esc   escape; usually referring to html characters: &→&amp; <→&lt; etc
+exe   executable (not necessarily a DOS MZ .exe file)
+fav   favourite(s), the list of remembered addresses of remote interpreters
+fg    foreground
+fmt   format
+fn    function
+geom  geometry, the mechanical layout of a keyboard
+grp   group
+hdr   header
+hvr   hover
+kbd   keyboard
+kw    keyword; sometimes used as a synonym for "control structure"
+lb    language bar
+lbl   label
+lc    locale
+lh    CodeMirror's LineHandle objects (see https://codemirror.net/doc/manual.html#getLineHandle)
+lhs   left-hand side
+lyt   layout
+msg   message
+pfx   prefix
+pos   position
+prf   preference(s)
+re    regular expression; sometimes used as a prefix to variable names
+rhs   right-hand side
+rp    replace (like Dyalog's RP command)
+rq    require
+rst   reset
+sc    search (like Dyalog's SC command)
+scm   scheme (like the typical extension for files containing mostly parens)
+sel   selection
+se    session
+sfx   suffix
+shc   shortcut
+sig   signal
+skt   socket
+sol   start of line (used by CodeMirror)
+srv   server (like in Conga)
+stk   stack
+stl   style
+sm    stream (for instance in the ssh client or in CodeMirror's tokenizer function)
+tb    toolbar
+tid   id returned by setTimeoutId()
+upd   update
+win   window (session or editor)

code-docs/cmd-codes.txt

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+Pre-RIDE command codes and their default shortcuts on Windows:
+
+AC Align Comments
+AO Add comments
+BH Run to exit (in tracer)
+BK Backward or Undo                Control+Shift+Back
+BP Toggle breakpoint
+BT Back Tab between windows
+CP Copy
+CT Cut
+DK Delete Block                    Control+Delete
+DO Del comments
+ED Edit                            Shift+Enter
+EP Exit (and save changes)         Esc
+FD Forward or Redo                 Control+Shift+Enter
+FX Fix the current function
+GL Go to Line
+LN Toggle Line numbers             Num -
+LS Left Screen
+MA Resume all threads (in tracer)
+MO Goto matching outline
+NX Next
+PT Paste
+PV Previous
+QT Quit (and lose changes)         Shift+Esc
+RD Reformat                        Num /
+RM Resume execution (in tracer)
+RP Replace
+RS Right Screen
+RZ Snap window size
+S1 Fix script and exit editor
+S2 Fix script but remain in editor
+SA Select all
+SC Search
+TB Tab between windows
+TC Trace                           Control+Enter
+TL Toggle localisation             Control+Up
+TO Toggle outline
+UA Undo all changes