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34 .EH 'USD:11-%''An Introduction to Display Editing with Vi'
35 .OH 'An Introduction to Display Editing with Vi''USD:11-%'
90 limited speed available.
109 The financial support of an \s-2IBM\s0 Graduate Fellowship and the
110 National Science Foundation under grants MCS74-07644-A03 and MCS78-07291
115 (Pronounced \fIvee-eye\fP.)
123 some nitty-gritty details of how the editor functions are saved for section
152 2621 Hewlett-Packard 2621A/P Intelligent
153 2645 Hewlett-Packard 264x Intelligent
154 act4 Microterm ACT-IV Dumb
155 act5 Microterm ACT-V Dumb
156 adm3a Lear Siegler ADM-3a Dumb
157 adm31 Lear Siegler ADM-31 Intelligent
162 fox Perkin-Elmer Fox Dumb
168 vt52 Dec VT-52 Dumb
171 Suppose for example that you have a Hewlett-Packard HP2621A
199 \fBsetenv TERM \(gatset\fP \- \-d mime\(ga
205 \fBTERM=\(gatse\fPt \- \-d mime\(ga
232 the keys \fB:q\fR (colon and the q key) and then hit the \s-2RETURN\s0 key.
240 here, try sending an interrupt to it by hitting the \s-2DEL\s0 or \s-2RUB\s0
260 in \s-2SMALL CAPITALS\s0.
279 moves back to the left (like control-h which is a backspace),
289 Special characters: \s-2ESC\s0, \s-2CR\s0 and \s-2DEL\s0
292 find them right now. Look on your keyboard for a key labelled \s-2ESC\s0
293 or \s-2ALT\s0. It should be near the upper left corner of your terminal.
300 Partially formed commands are cancelled by \s-2ESC\s0, and when you insert
302 with \s-2ESC\s0. This key is a fairly
306 The \s-2CR\s0 or \s-2RETURN\s0 key is important because it is used
311 Another very useful key is the \s-2DEL\s0 or \s-2RUB\s0 key, which generates
317 cursor should now be positioned at the bottom line of the terminal after
319 position by hitting the \s-2DEL\s0 or \s-2RUB\s0 key; try this now.*
323 From now on we will simply refer to hitting the \s-2DEL\s0 or \s-2RUB\s0
327 ahead when the editor is computing with the cursor on the bottom line.
345 session by giving the command \fB:q!\fR\s-2CR\s0;\*(dg
348 terminated with a \s-2ESC\s0 as well as an \s-2CR\s0.
363 at the same time, a control-D or `^D'. We will use this two character
382 hit \fB^E\fR to expose one more line at the bottom of the screen,
384 The command \fB^Y\fR (which is hopelessly non-mnemonic, but next to \fB^U\fR
403 terminated by \s-2CR\s0. The editor will position the cursor
412 in scans by giving the command \fB:se nowrapscan\fR\s-2CR\s0,
413 or more briefly \fB:se nows\fR\s-2CR\s0.
424 Thus \fB/\(uasearch\fR\s-2CR\s0 will search for the word `search' at
425 the beginning of a line, and \fB/last$\fR\s-2CR\s0 searches for the
436 \fB:se\ nomagic\fR\s-2CR\s0;
451 If you are near the end of the file, and the last line is not at the bottom
491 advances to the next line in the file, at the first non-white position
492 on the line. The \fB\-\fR key is like \fB+\fR but goes the other way.
495 Notice that if you go off the bottom or top with these keys then the
497 into view. The \s-2RETURN\s0 key has the same effect as the \fB+\fR
501 also has commands to take you to the top, middle and bottom of the screen.
514 \fB5L\fR will take you to the fifth line from the bottom.
520 move the cursor using \s-2RETURN\s0 and \fB\-\fR to be on the line where
528 Also try \s-2SPACE\s0 (the space bar) which moves right one character
529 and the \s-2BS\s0 (backspace or \fB^H\fR) key which moves left one character.
531 a \s-2BS\s0 key.
550 \fR\s-2SPACE\s0\fP advance the cursor one position
553 ^E exposes another line at the bottom
562 \- previous line, at the beginning
597 After you type \fBi\fR, everything you type until you hit \s-2ESC\s0
603 reappear when you hit \s-2ESC\s0.
607 \fBa\fR for append and then `s\s-2ESC\s0' to terminate the textual insert.
619 this way, text you type up to an \s-2ESC\s0 is inserted on the new line.
634 hit a \s-2RETURN\s0 at the middle of your input. A new line will be created
640 be fixed up, and the missing lines will reappear, when you hit \s-2ESC\s0.
660 you hit \s-2ESC\s0; if you want to get rid of them immediately, hit an
661 \s-2ESC\s0 and then \fBa\fR again.
665 to the previous line to make a correction, just hit \s-2ESC\s0 and move
676 backspace (hit the \s-2BS\s0 key or \fB^H\fR or even just \fBh\fR) or
677 \s-2SPACE\s0 (using the space bar)
690 a string of characters, ending with \s-2ESC\s0, for it.
712 \fBd\fR\s-2SPACE\s0. This deletes a single character, and is equivalent
720 You follow it by the replacement text ending with an \s-2ESC\s0.
745 replacing them with text you type up to an \s-2ESC\s0.\*(dg
760 the bottom line. Try some commands like this now.*
800 \fR\s-2SPACE\s0\fP advance the cursor one position
828 of word motions or \s-2SPACE\s0s.
841 cursor to the first non-white position on the line, and a
849 * This is settable by a command of the form \fB:se ts=\fR\fIx\fR\s-2CR\s0,
860 of which is `^'. On the screen non-printing characters resemble a `^'
907 \fI\-ms\fR and \fI\-mm\fR macro packages, i.e. the `.IP', `.LP', `.PP'
938 changed away text is saved, and a set of named buffers \fBa\fR\-\fBz\fR
946 \fIx\fR here is replaced by a letter \fBa\-z\fR, it places the text in the named
976 back, by giving a command of the form \fB:e \fR\fIname\fR\s-2CR\s0 where
990 \(ua first non-white on line
1015 \fBZZ\fR or \fB:w\fR\s-2CR\s0. The first exits from
1023 \fB:q!\fR\s-2CR\s0 to quit from the editor without writing the changes.
1025 \fB:e!\fR\s-2CR\s0. These commands should be used only rarely, and with
1030 command \fB:e\fR\ \fIname\fR\s-2CR\s0. If you have not written out
1033 \fB:w\fR\s-2CR\s0 to save your work and then the \fB:e\fR\ \fIname\fR\s-2CR\s0
1034 command again, or carefully give the command \fB:e!\fR\ \fIname\fR\s-2CR\s0,
1047 command of the form \fB:!\fIcmd\fR\s-2CR\s0.
1050 and when the command finishes, the editor will ask you to hit a \s-2RETURN\s0
1052 you should hit \s-2RETURN\s0 and the editor will clear the screen and
1054 You can also give another \fB:\fR command when it asks you for a \s-2RETURN\s0;
1058 give the command \fB:sh\fR\s-2CR\s0.
1084 the first non-white character of the marked line; similarly \fB\(aa\(aa\fR
1085 moves to the first non-white character of the line containing the previous
1092 to your terminal, you can hit a \fB^L\fR, the \s-2ASCII\s0 form-feed
1100 middle or bottom of the screen, you can position the cursor to that line,
1102 You should follow the \fBz\fR command with a \s-2RETURN\s0 if you want
1104 at the center, or a \fB\-\fR if you want it at the bottom.
1120 by giving the command \fB:se slow\fR\s-2CR\s0. If your system is sluggish
1122 You can disable this option by \fB:se noslow\fR\s-2CR\s0.
1125 giving the command \fB:se redraw\fR\s-2CR\s0. This simulation generates
1128 \fB:se noredraw\fR\s-2CR\s0.
1130 The editor also makes editing more pleasant at low speed by starting
1150 and before the following \s-2RETURN\s0, \fB.\fR or \fB\-\fR. Thus the
1159 display, you can interrupt this updating by hitting a \s-2DEL\s0 or \s-2RUB\s0
1195 lisp nolisp \fB( { ) }\fR commands deal with S-expressions
1211 by preceding them with a \fB:\fR and following them with a \s-2CR\s0.
1214 command \fB:set\fR\s-2CR\s0, or the value of a single option by the
1215 command \fB:set\fR \fIopt\fR\fB?\fR\s-2CR\s0.
1217 \fB:set all\fP\s-2CR\s0.
1220 \fB:se ai aw nu\fP\s-2CR\s0.
1276 9 deleted blocks of text in a set of numbered registers 1\-9.
1321 % \fBvi \-r\fR \fIname\fR
1337 % \fBvi \-r\fR
1349 The invocation ``\fIvi -r\fP'' will not always list all saved files,
1357 \fB:se wm=10\fR\s-2CR\s0.
1378 To enable this facility you can give the command \fB:se ai\fR\s-2CR\s0.
1390 Try giving the command \fB:se sw=4\fR\s-2CR\s0
1425 of the buffer with a pretty-printer.
1428 the command \fB!}sort\fR\s-2CR\s0. This says to sort the next paragraph
1431 Commands for editing \s-2LISP\s0
1433 If you are editing a \s-2LISP\s0 program you should set the option
1436 \fB:se\ lisp\fR\s-2CR\s0.
1438 over s-expressions.
1445 option works differently for \s-2LISP\s0, supplying indent to align at
1449 There is another option which is useful for typing in \s-2LISP\s0, the
1453 \fB:se sm\fR\s-2CR\s0
1468 When you are editing \s-2LISP\s0,, the \fB[[\fR and \fR]]\fR advance
1494 :map \fIlhs\fR \fIrhs\fR\s-2CR
1532 :map q :wq\fB^V^V\fP\s-2CR CR\s0
1535 had typed the four characters \fB:wq\fR\s-2CR\s0.
1536 A \fB^V\fR's is needed because without it the \s-2CR\s0 would end the
1547 The first \s-2CR\s0 is part of the
1631 Nitty-gritty details
1655 on the display. Give the command \fB:se nu\fR\s-2CR\s0 to enable
1656 this, and the command \fB:se nonu\fR\s-2CR\s0 to turn it off.
1658 with `$' by giving the command \fB:se list\fR\s-2CR\s0;
1659 \fB:se nolist\fR\s-2CR\s0 turns this off.
1696 move off the top with a \fB\-\fR or similar command or off the bottom
1697 with a command such as \s-2RETURN\s0 or \fB^D\fR.
1707 inserted text. Thus \fB10a+\-\-\-\-\fR\s-2ESC\s0 will insert a grid-like
1714 while \fB5\fR\s-2RETURN\s0 advances five lines. A very useful instance
1749 All of these commands are followed by a \s-2CR\s0 or \s-2ESC\s0.
1817 the form \fB/\fR\fIpat\fR\fB/\-\fR\fIn\fR to refer to the \fIn\fR'th line
1819 of \fB\-\fR to refer to the lines after the one containing \fIpat\fR.
1825 by giving the command \fB:se ic\fR\s-2CR\s0.
1826 The command \fB:se noic\fR\s-2CR\s0 turns this off.
1853 [\fIx\fP\-\fIy\fP] matches any character between \fIx\fP and \fIy\fP
1874 \s-2ESC\s0 ends an insertion
1875 \s-2DEL\s0 interrupts an insertion, terminating it abnormally
1876 \s-2CR\s0 starts a new line
1880 ^V quotes the next non-printing character into the file
1896 on the previous line after a new line has been started you can hit \s-2ESC\s0
1903 system command level. A more general way of typing non-printing characters
1910 not allow the \s-2NULL\s0 (\fB^@\fR) character to appear in files. Also
1911 the \s-2LF\s0 (linefeed or \fB^J\fR) character is used by the editor
1970 Just give them without the \fB:\fR and follow them with a \s-2CR\s0.
1997 command mode to speed the work they are doing.
2003 which can move off the bottom line, you can still use the command set of