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1.1 root 1: .\" Copyright (c) 1980 The Regents of the University of California.
2: .\" All rights reserved.
3: .\"
4: .\" Redistribution and use in source and binary forms are permitted
5: .\" provided that the above copyright notice and this paragraph are
6: .\" duplicated in all such forms and that any documentation,
7: .\" advertising materials, and other materials related to such
8: .\" distribution and use acknowledge that the software was developed
9: .\" by the University of California, Berkeley. The name of the
10: .\" University may not be used to endorse or promote products derived
11: .\" from this software without specific prior written permission.
12: .\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
13: .\" IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
14: .\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
15: .\"
16: .\" @(#)vi.chars 6.2 (Berkeley) 11/27/89
17: .\"
18: .bd S 3
19: ..pn 21
20: .de iP
21: .IP "\fB\\$1\fR" \\$2
22: ..
23: .SH
24: Appendix: character functions
25: .PP
26: This appendix gives the uses the editor makes of each character. The
27: characters are presented in their order in the \s-2ASCII\s0 character
28: set: Control characters come first, then most special characters, then
29: the digits, upper and then lower case characters.
30: .PP
31: For each character we tell a meaning it has as a command and any meaning it
32: has during an insert.
33: If it has only meaning as a command, then only this is discussed.
34: Section numbers in parentheses indicate where the character is discussed;
35: a `f' after the section number means that the character is mentioned
36: in a footnote.
37: .iP "^@" 15
38: Not a command character.
39: If typed as the first character of an insertion it is replaced with the
40: last text inserted, and the insert terminates. Only 128 characters are
41: saved from the last insert; if more characters were inserted the mechanism
42: is not available.
43: A \fB^@\fR cannot be part of the file due to the editor implementation
44: (7.5f).
45: .iP "^A" 15
46: Unused.
47: .iP "^B" 15
48: Backward window.
49: A count specifies repetition.
50: Two lines of continuity are kept if possible (2.1, 6.1, 7.2).
51: .iP "^C" 15
52: Unused.
53: .iP "^D" 15
54: As a command, scrolls down a half-window of text.
55: A count gives the number of (logical) lines to scroll, and is remembered
56: for future \fB^D\fR and \fB^U\fR commands (2.1, 7.2).
57: During an insert, backtabs over \fIautoindent\fR white space at the beginning
58: of a line (6.6, 7.5); this white space cannot be backspaced over.
59: .iP "^E" 15
60: Exposes one more line below the current screen in the file, leaving
61: the cursor where it is if possible.
62: (Version 3 only.)
63: .iP "^F" 15
64: Forward window. A count specifies repetition.
65: Two lines of continuity are kept if possible (2.1, 6.1, 7.2).
66: .iP "^G" 15
67: Equivalent to \fB:f\fR\s-2CR\s0, printing the current file, whether
68: it has been modified, the current line number and the number of lines
69: in the file, and the percentage of the way through the file that you
70: are.
71: .iP "^H (\fR\s-2BS\s0\fP)" 15
72: Same as
73: .B "left arrow" .
74: (See
75: .B h ).
76: During an insert, eliminates the last input character, backing over it
77: but not erasing it; it remains so you can see what you typed if you
78: wish to type something only slightly different (3.1, 7.5).
79: .iP "^I\ (\fR\s-2TAB\s0\fP)" 15
80: Not a command character.
81: When inserted it prints as some
82: number of spaces.
83: When the cursor is at a tab character it rests at the last of the spaces
84: which represent the tab.
85: The spacing of tabstops is controlled by the \fItabstop\fR option (4.1, 6.6).
86: .iP "^J\ (\fR\s-2LF\s0\fP)" 15
87: Same as
88: .B "down arrow"
89: (see
90: .B j ).
91: .iP "^K" 15
92: Unused.
93: .iP "^L" 15
94: The \s-2ASCII\s0 formfeed character, this causes the screen to be cleared
95: and redrawn. This is useful after a transmission error, if characters
96: typed by a program other than the editor scramble the screen,
97: or after output is stopped by an interrupt (5.4, 7.2f).
98: .iP "^M\ (\fR\s-2CR\s0\fP)" 15
99: A carriage return advances to the next line, at the first non-white position
100: in the line. Given a count, it advances that many lines (2.3).
101: During an insert, a \s-2CR\s0 causes the insert to continue onto
102: another line (3.1).
103: .iP "^N" 15
104: Same as
105: .B "down arrow"
106: (see
107: .B j ).
108: .iP "^O" 15
109: Unused.
110: .iP "^P" 15
111: Same as
112: .B "up arrow"
113: (see
114: .B k ).
115: .iP "^Q" 15
116: Not a command character.
117: In input mode,
118: .B ^Q
119: quotes the next character, the same as
120: .B ^V ,
121: except that some teletype drivers will eat the
122: .B ^Q
123: so that the editor never sees it.
124: .iP "^R" 15
125: Redraws the current screen, eliminating logical lines not corresponding
126: to physical lines (lines with only a single @ character on them).
127: On hardcopy terminals in \fIopen\fR mode, retypes the current line
128: (5.4, 7.2, 7.8).
129: .iP "^S" 15
130: Unused. Some teletype drivers use
131: .B ^S
132: to suspend output until
133: .B ^Q is pressed.
134: .iP "^T" 15
135: Not a command character.
136: During an insert, with \fIautoindent\fR set and at the beginning of the
137: line, inserts \fIshiftwidth\fR white space.
138: .iP "^U" 15
139: Scrolls the screen up, inverting \fB^D\fR which scrolls down. Counts work as
140: they do for \fB^D\fR, and the previous scroll amount is common to both.
141: On a dumb terminal, \fB^U\fR will often necessitate clearing and redrawing
142: the screen further back in the file (2.1, 7.2).
143: .iP "^V" 15
144: Not a command character.
145: In input mode, quotes the next character so that it is possible
146: to insert non-printing and special characters into the file (4.2, 7.5).
147: .iP "^W" 15
148: Not a command character.
149: During an insert, backs up as \fBb\fR would in command mode; the deleted
150: characters remain on the display (see \fB^H\fR) (7.5).
151: .iP "^X" 15
152: Unused.
153: .iP "^Y" 15
154: Exposes one more line above the current screen, leaving the cursor where
155: it is if possible. (No mnemonic value for this key; however, it is next
156: to \fB^U\fR which scrolls up a bunch.)
157: (Version 3 only.)
158: .iP "^Z" 15
159: If supported by the Unix system,
160: stops the editor, exiting to the top level shell.
161: Same as \fB:stop\fP\s-2CR\s0.
162: Otherwise, unused.
163: .iP "^[\ (\fR\s-2ESC\s0\fP)" 15
164: Cancels a partially formed command, such as a \fBz\fR when no following
165: character has yet been given; terminates inputs on the last line (read
166: by commands such as \fB: /\fR and \fB?\fR); ends insertions of new text
167: into the buffer.
168: If an \s-2ESC\s0 is given when quiescent in command state, the editor
169: rings the bell or flashes the screen. You can thus hit \s-2ESC\s0 if
170: you don't know what is happening till the editor rings the bell.
171: If you don't know if you are in insert mode you can type \s-2ESC\s0\fBa\fR,
172: and then material to be input; the material will be inserted correctly
173: whether or not you were in insert mode when you started (1.5, 3.1, 7.5).
174: .iP "^\e" 15
175: Unused.
176: .iP "^]" 15
177: Searches for the word which is after the cursor as a tag. Equivalent
178: to typing \fB:ta\fR, this word, and then a \s-2CR\s0.
179: Mnemonically, this command is ``go right to'' (7.3).
180: .iP "^\(ua" 15
181: Equivalent to \fB:e #\fR\s-2CR\s0, returning to the previous position
182: in the last edited file, or editing a file which you specified if you
183: got a `No write since last change diagnostic' and do not want to have
184: to type the file name again (7.3).
185: (You have to do a \fB:w\fR before \fB^\(ua\fR
186: will work in this case. If you do not wish to write the file you should
187: do \fB:e!\ #\fR\s-2CR\s0 instead.)
188: .iP "^_" 15
189: Unused.
190: Reserved as the command character for the
191: Tektronix 4025 and 4027 terminal.
192: .iP "\fR\s-2SPACE\s0\fP" 15
193: Same as
194: .B "right arrow"
195: (see
196: .B l ).
197: .iP "!" 15
198: An operator, which processes lines from the buffer with reformatting commands.
199: Follow \fB!\fR with the object to be processed, and then the command name
200: terminated by \s-2CR\s0. Doubling \fB!\fR and preceding it by a count
201: causes count lines to be filtered; otherwise the count
202: is passed on to the object after the \fB!\fR. Thus \fB2!}\fR\fIfmt\fR\s-2CR\s0
203: reformats the next two paragraphs by running them through the program
204: \fIfmt\fR. If you are working on \s-2LISP\s0,
205: the command \fB!%\fR\fIgrind\fR\s-2CR\s0,*
206: .FS
207: *Both
208: .I fmt
209: and
210: .I grind
211: are Berkeley programs and may not be present at all installations.
212: .FE
213: given at the beginning of a
214: function, will run the text of the function through the \s-2LISP\s0 grinder
215: (6.7, 7.3).
216: To read a file or the output of a command into the buffer use \fB:r\fR (7.3).
217: To simply execute a command use \fB:!\fR (7.3).
218: .tr "
219: .iP 15
220: Precedes a named buffer specification. There are named buffers \fB1\-9\fR
221: used for saving deleted text and named buffers \fBa\-z\fR into which you can
222: place text (4.3, 6.3)
223: .tr
224: .iP "#" 15
225: The macro character which, when followed by a number, will substitute
226: for a function key on terminals without function keys (6.9).
227: In input mode,
228: if this is your erase character, it will delete the last character
229: you typed in input mode, and must be preceded with a \fB\e\fR to insert
230: it, since it normally backs over the last input character you gave.
231: .iP "$" 15
232: Moves to the end of the current line. If you \fB:se list\fR\s-2CR\s0,
233: then the end of each line will be shown by printing a \fB$\fR after the
234: end of the displayed text in the line. Given a count, advances to the
235: count'th following end of line; thus \fB2$\fR advances to the end of the
236: following line.
237: .iP "%" 15
238: Moves to the parenthesis or brace \fB{ }\fR which balances the parenthesis
239: or brace at the current cursor position.
240: .iP "&" 15
241: A synonym for \fB:&\fR\s-2CR\s0, by analogy with the
242: .I ex
243: .B &
244: command.
245: .iP "\(aa" 15
246: When followed by a \fB\(aa\fR returns to the previous context at the
247: beginning of a line. The previous context is set whenever the current
248: line is moved in a non-relative way.
249: When followed by a letter \fBa\fR\-\fBz\fR, returns to the line which
250: was marked with this letter with a \fBm\fR command, at the first non-white
251: character in the line. (2.2, 5.3).
252: When used with an operator such as \fBd\fR, the operation takes place
253: over complete lines; if you use \fB\(ga\fR, the operation takes place
254: from the exact marked place to the current cursor position within the
255: line.
256: .iP "(" 15
257: Retreats to the beginning of a
258: sentence, or to the beginning of a \s-2LISP\s0 s-expression
259: if the \fIlisp\fR option is set.
260: A sentence ends at a \fB. !\fR or \fB?\fR which is followed by either
261: the end of a line or by two spaces. Any number of closing \fB) ] "\fR
262: and \fB\(aa\fR characters may appear after the \fB. !\fR or \fB?\fR,
263: and before the spaces or end of line. Sentences also begin
264: at paragraph and section boundaries
265: (see \fB{\fR and \fB[[\fR below).
266: A count advances that many sentences (4.2, 6.8).
267: .iP ")" 15
268: Advances to the beginning of a sentence.
269: A count repeats the effect.
270: See \fB(\fR above for the definition of a sentence (4.2, 6.8).
271: .iP "*" 15
272: Unused.
273: .iP "+" 15
274: Same as \s-2CR\s0 when used as a command.
275: .iP "," 15
276: Reverse of the last \fBf F t\fR or \fBT\fR command, looking the other way
277: in the current line. Especially useful after hitting too many \fB;\fR
278: characters. A count repeats the search.
279: .iP "\-" 15
280: Retreats to the previous line at the first non-white character.
281: This is the inverse of \fB+\fR and \s-2RETURN\s0.
282: If the line moved to is not on the screen, the screen is scrolled, or
283: cleared and redrawn if this is not possible.
284: If a large amount of scrolling would be required the screen is also cleared
285: and redrawn, with the current line at the center (2.3).
286: .iP "\&." 15
287: Repeats the last command which changed the buffer. Especially useful
288: when deleting words or lines; you can delete some words/lines and then
289: hit \fB.\fR to delete more and more words/lines.
290: Given a count, it passes it on to the command being repeated. Thus after
291: a \fB2dw\fR, \fB3.\fR deletes three words (3.3, 6.3, 7.2, 7.4).
292: .iP "/" 15
293: Reads a string from the last line on the screen, and scans forward for
294: the next occurrence of this string. The normal input editing sequences may
295: be used during the input on the bottom line; an returns to command state
296: without ever searching.
297: The search begins when you hit \s-2CR\s0 to terminate the pattern;
298: the cursor moves to the beginning of the last line to indicate that the search
299: is in progress; the search may then
300: be terminated with a \s-2DEL\s0 or \s-2RUB\s0, or by backspacing when
301: at the beginning of the bottom line, returning the cursor to
302: its initial position.
303: Searches normally wrap end-around to find a string
304: anywhere in the buffer.
305: .IP
306: When used with an operator the enclosed region is normally affected.
307: By mentioning an
308: offset from the line matched by the pattern you can force whole lines
309: to be affected. To do this give a pattern with a closing
310: a closing \fB/\fR and then an offset \fB+\fR\fIn\fR or \fB\-\fR\fIn\fR.
311: .IP
312: To include the character \fB/\fR in the search string, you must escape
313: it with a preceding \fB\e\fR.
314: A \fB\(ua\fR at the beginning of the pattern forces the match to occur
315: at the beginning of a line only; this speeds the search. A \fB$\fR at
316: the end of the pattern forces the match to occur at the end of a line
317: only.
318: More extended pattern matching is available, see section 7.4;
319: unless you set \fBnomagic\fR in your \fI\&.exrc\fR file you will have
320: to preceed the characters \fB. [ *\fR and \fB~\fR in the search pattern
321: with a \fB\e\fR to get them to work as you would naively expect (1.5, 2,2,
322: 6.1, 7.2, 7.4).
323: .iP "0" 15
324: Moves to the first character on the current line.
325: Also used, in forming numbers, after an initial \fB1\fR\-\fB9\fR.
326: .iP "1\-9" 15
327: Used to form numeric arguments to commands (2.3, 7.2).
328: .iP ":" 15
329: A prefix to a set of commands for file and option manipulation and escapes
330: to the system. Input is given on the bottom line and terminated with
331: an \s-2CR\s0, and the command then executed. You can return to where
332: you were by hitting \s-2DEL\s0 or \s-2RUB\s0 if you hit \fB:\fR accidentally
333: (see primarily 6.2 and 7.3).
334: .iP ";" 15
335: Repeats the last single character find which used \fBf F t\fR or \fBT\fR.
336: A count iterates the basic scan (4.1).
337: .iP "<" 15
338: An operator which shifts lines left one \fIshiftwidth\fR, normally 8
339: spaces. Like all operators, affects lines when repeated, as in
340: \fB<<\fR. Counts are passed through to the basic object, thus \fB3<<\fR
341: shifts three lines (6.6, 7.2).
342: .iP "=" 15
343: Reindents line for \s-2LISP\s0, as though they were typed in with \fIlisp\fR
344: and \fIautoindent\fR set (6.8).
345: .iP ">" 15
346: An operator which shifts lines right one \fIshiftwidth\fR, normally 8
347: spaces. Affects lines when repeated as in \fB>>\fR. Counts repeat the
348: basic object (6.6, 7.2).
349: .iP "?" 15
350: Scans backwards, the opposite of \fB/\fR. See the \fB/\fR description
351: above for details on scanning (2.2, 6.1, 7.4).
352: .iP "@" 15
353: A macro character (6.9). If this is your kill character, you must escape it with a \e
354: to type it in during input mode, as it normally backs over the input you
355: have given on the current line (3.1, 3.4, 7.5).
356: .iP "A" 15
357: Appends at the end of line, a synonym for \fB$a\fR (7.2).
358: .iP "B" 15
359: Backs up a word, where words are composed of non-blank sequences, placing
360: the cursor at the beginning of the word. A count repeats the effect
361: (2.4).
362: .iP "C" 15
363: Changes the rest of the text on the current line; a synonym for \fBc$\fR.
364: .iP "D" 15
365: Deletes the rest of the text on the current line; a synonym for \fBd$\fR.
366: .iP "E" 15
367: Moves forward to the end of a word, defined as blanks and non-blanks,
368: like \fBB\fR and \fBW\fR. A count repeats the effect.
369: .iP "F" 15
370: Finds a single following character, backwards in the current line.
371: A count repeats this search that many times (4.1).
372: .iP "G" 15
373: Goes to the line number given as preceding argument, or the end of the
374: file if no preceding count is given. The screen is redrawn with the
375: new current line in the center if necessary (7.2).
376: .iP "H" 15
377: .B "Home arrow" .
378: Homes the cursor to the top line on the screen. If a count is given,
379: then the cursor is moved to the count'th line on the screen.
380: In any case the cursor is moved to the first non-white character on the
381: line. If used as the target of an operator, full lines are affected
382: (2.3, 3.2).
383: .iP "I" 15
384: Inserts at the beginning of a line; a synonym for \fB\(uai\fR.
385: .iP "J" 15
386: Joins together lines, supplying appropriate white space: one space between
387: words, two spaces after a \fB.\fR, and no spaces at all if the first
388: character of the joined on line is \fB)\fR. A count causes that many
389: lines to be joined rather than the default two (6.5, 7.1f).
390: .iP "K" 15
391: Unused.
392: .iP "L" 15
393: Moves the cursor to the first non-white character of the last line on
394: the screen. With a count, to the first non-white of the count'th line
395: from the bottom. Operators affect whole lines when used with \fBL\fR
396: (2.3).
397: .iP "M" 15
398: Moves the cursor to the middle line on the screen, at the first non-white
399: position on the line (2.3).
400: .iP "N" 15
401: Scans for the next match of the last pattern given to
402: \fB/\fR or \fB?\fR, but in the reverse direction; this is the reverse
403: of \fBn\fR.
404: .iP "O" 15
405: Opens a new line above the current line and inputs text there up to an
406: \s-2ESC\s0. A count can be used on dumb terminals to specify a number
407: of lines to be opened; this is generally obsolete, as the \fIslowopen\fR
408: option works better (3.1).
409: .iP "P" 15
410: Puts the last deleted text back before/above the cursor. The text goes
411: back as whole lines above the cursor if it was deleted as whole lines.
412: Otherwise the text is inserted between the characters before and at the
413: cursor. May be preceded by a named buffer specification \fB"\fR\fIx\fR
414: to retrieve the contents of the buffer; buffers \fB1\fR\-\fB9\fR contain
415: deleted material, buffers \fBa\fR\-\fBz\fR are available for general
416: use (6.3).
417: .iP "Q" 15
418: Quits from \fIvi\fR to \fIex\fR command mode. In this mode, whole lines
419: form commands, ending with a \s-2RETURN\s0. You can give all the \fB:\fR
420: commands; the editor supplies the \fB:\fR as a prompt (7.7).
421: .iP "R" 15
422: Replaces characters on the screen with characters you type (overlay fashion).
423: Terminates with an \s-2ESC\s0.
424: .iP "S" 15
425: Changes whole lines, a synonym for \fBcc\fR. A count substitutes for
426: that many lines. The lines are saved in the numeric buffers, and erased
427: on the screen before the substitution begins.
428: .iP "T" 15
429: Takes a single following character, locates the character before the
430: cursor in the current line, and places the cursor just after that character.
431: A count repeats the effect. Most useful with operators such as \fBd\fR
432: (4.1).
433: .iP "U" 15
434: Restores the current line to its state before you started changing it
435: (3.5).
436: .iP "V" 15
437: Unused.
438: .iP "W" 15
439: Moves forward to the beginning of a word in the current line,
440: where words are defined as sequences of blank/non-blank characters.
441: A count repeats the effect (2.4).
442: .iP "X" 15
443: Deletes the character before the cursor. A count repeats the effect,
444: but only characters on the current line are deleted.
445: .iP "Y" 15
446: Yanks a copy of the current line into the unnamed buffer, to be put back
447: by a later \fBp\fR or \fBP\fR; a very useful synonym for \fByy\fR.
448: A count yanks that many lines. May be preceded by a buffer name to put
449: lines in that buffer (7.4).
450: .iP "ZZ" 15
451: Exits the editor.
452: (Same as \fB:x\fP\s-2CR\s0.)
453: If any changes have been made, the buffer is written out to the current file.
454: Then the editor quits.
455: .iP "[[" 15
456: Backs up to the previous section boundary. A section begins at each
457: macro in the \fIsections\fR option,
458: normally a `.NH' or `.SH' and also at lines which which start
459: with a formfeed \fB^L\fR. Lines beginning with \fB{\fR also stop \fB[[\fR;
460: this makes it useful for looking backwards, a function at a time, in C
461: programs. If the option \fIlisp\fR is set, stops at each \fB(\fR at the
462: beginning of a line, and is thus useful for moving backwards at the top
463: level \s-2LISP\s0 objects. (4.2, 6.1, 6.6, 7.2).
464: .iP "\e" 15
465: Unused.
466: .iP "]]" 15
467: Forward to a section boundary, see \fB[[\fR for a definition (4.2, 6.1,
468: 6.6, 7.2).
469: .iP "\(ua" 15
470: Moves to the first non-white position on the current line (4.4).
471: .iP "_" 15
472: Unused.
473: .iP "\(ga" 15
474: When followed by a \fB\(ga\fR returns to the previous context.
475: The previous context is set whenever the current
476: line is moved in a non-relative way.
477: When followed by a letter \fBa\fR\-\fBz\fR, returns to the position which
478: was marked with this letter with a \fBm\fR command.
479: When used with an operator such as \fBd\fR, the operation takes place
480: from the exact marked place to the current position within the line;
481: if you use \fB\(aa\fR, the operation takes place over complete lines
482: (2.2, 5.3).
483: .iP "a" 15
484: Appends arbitrary text after the current cursor position; the insert
485: can continue onto multiple lines by using \s-2RETURN\s0 within the insert.
486: A count causes the inserted text to be replicated, but only if the inserted
487: text is all on one line.
488: The insertion terminates with an \s-2ESC\s0 (3.1, 7.2).
489: .iP "b" 15
490: Backs up to the beginning of a word in the current line. A word is a
491: sequence of alphanumerics, or a sequence of special characters.
492: A count repeats the effect (2.4).
493: .iP "c" 15
494: An operator which changes the following object, replacing it with the
495: following input text up to an \s-2ESC\s0. If more than part of a single
496: line is affected, the text which is changed away is saved in the numeric named
497: buffers. If only part of the current line is affected, then the last
498: character to be changed away is marked with a \fB$\fR.
499: A count causes that many objects to be affected, thus both
500: \fB3c)\fR and \fBc3)\fR change the following three sentences (7.4).
501: .iP "d" 15
502: An operator which deletes the following object. If more than part of
503: a line is affected, the text is saved in the numeric buffers.
504: A count causes that many objects to be affected; thus \fB3dw\fR is the
505: same as \fBd3w\fR (3.3, 3.4, 4.1, 7.4).
506: .iP "e" 15
507: Advances to the end of the next word, defined as for \fBb\fR and \fBw\fR.
508: A count repeats the effect (2.4, 3.1).
509: .iP "f" 15
510: Finds the first instance of the next character following the cursor on
511: the current line. A count repeats the find (4.1).
512: .iP "g" 15
513: Unused.
514: .sp
515: Arrow keys
516: .B h ,
517: .B j ,
518: .B k ,
519: .B l ,
520: and
521: .B H .
522: .iP "h" 15
523: .B "Left arrow" .
524: Moves the cursor one character to the left.
525: Like the other arrow keys, either
526: .B h ,
527: the
528: .B "left arrow"
529: key, or one of the synonyms (\fB^H\fP) has the same effect.
530: On v2 editors, arrow keys on certain kinds of terminals
531: (those which send escape sequences, such as vt52, c100, or hp)
532: cannot be used.
533: A count repeats the effect (3.1, 7.5).
534: .iP "i" 15
535: Inserts text before the cursor, otherwise like \fBa\fR (7.2).
536: .iP "j" 15
537: .B "Down arrow" .
538: Moves the cursor one line down in the same column.
539: If the position does not exist,
540: .I vi
541: comes as close as possible to the same column.
542: Synonyms include
543: .B ^J
544: (linefeed) and
545: .B ^N .
546: .iP "k" 15
547: .B "Up arrow" .
548: Moves the cursor one line up.
549: .B ^P
550: is a synonym.
551: .iP "l" 15
552: .B "Right arrow" .
553: Moves the cursor one character to the right.
554: \s-2SPACE\s0 is a synonym.
555: .iP "m" 15
556: Marks the current position of the cursor in the mark register which is
557: specified by the next character \fBa\fR\-\fBz\fR. Return to this position
558: or use with an operator using \fB\(ga\fR or \fB\(aa\fR (5.3).
559: .iP "n" 15
560: Repeats the last \fB/\fR or \fB?\fR scanning commands (2.2).
561: .iP "o" 15
562: Opens new lines below the current line; otherwise like \fBO\fR (3.1).
563: .iP "p" 15
564: Puts text after/below the cursor; otherwise like \fBP\fR (6.3).
565: .iP "q" 15
566: Unused.
567: .iP "r" 15
568: Replaces the single character at the cursor with a single character you
569: type. The new character may be a \s-2RETURN\s0; this is the easiest
570: way to split lines. A count replaces each of the following count characters
571: with the single character given; see \fBR\fR above which is the more
572: usually useful iteration of \fBr\fR (3.2).
573: .iP "s" 15
574: Changes the single character under the cursor to the text which follows
575: up to an \s-2ESC\s0; given a count, that many characters from the current
576: line are changed. The last character to be changed is marked with \fB$\fR
577: as in \fBc\fR (3.2).
578: .iP "t" 15
579: Advances the cursor upto the character before the next character typed.
580: Most useful with operators such as \fBd\fR and \fBc\fR to delete the
581: characters up to a following character. You can use \fB.\fR to delete
582: more if this doesn't delete enough the first time (4.1).
583: .iP "u" 15
584: Undoes the last change made to the current buffer. If repeated, will
585: alternate between these two states, thus is its own inverse. When used
586: after an insert which inserted text on more than one line, the lines are
587: saved in the numeric named buffers (3.5).
588: .iP "v" 15
589: Unused.
590: .iP "w" 15
591: Advances to the beginning of the next word, as defined by \fBb\fR (2.4).
592: .iP "x" 15
593: Deletes the single character under the cursor. With a count deletes
594: deletes that many characters forward from the cursor position, but only
595: on the current line (6.5).
596: .iP "y" 15
597: An operator, yanks the following object into the unnamed temporary buffer.
598: If preceded by a named buffer specification, \fB"\fR\fIx\fR, the text
599: is placed in that buffer also. Text can be recovered by a later \fBp\fR
600: or \fBP\fR (7.4).
601: .iP "z" 15
602: Redraws the screen with the current line placed as specified by the following
603: character: \s-2RETURN\s0 specifies the top of the screen, \fB.\fR the
604: center of the screen, and \fB\-\fR at the bottom of the screen.
605: A count may be given after the \fBz\fR and before the following character
606: to specify the new screen size for the redraw.
607: A count before the \fBz\fR gives the number of the line to place in the
608: center of the screen instead of the default current line. (5.4)
609: .iP "{" 15
610: Retreats to the beginning of the beginning of the preceding paragraph.
611: A paragraph begins at each macro in the \fIparagraphs\fR option, normally
612: `.IP', `.LP', `.PP', `.QP' and `.bp'.
613: A paragraph also begins after a completely
614: empty line, and at each section boundary (see \fB[[\fR above) (4.2, 6.8,
615: 7.6).
616: .iP "|" 15
617: Places the cursor on the character in the column specified
618: by the count (7.1, 7.2).
619: .iP "}" 15
620: Advances to the beginning of the next paragraph. See \fB{\fR for the
621: definition of paragraph (4.2, 6.8, 7.6).
622: .iP "~" 15
623: Unused.
624: .iP "^?\ (\s-2\fRDEL\fP\s0)" 15
625: Interrupts the editor, returning it to command accepting state (1.5,
626: 7.5)
627: .bp
628: \&.
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