Annotation of src/usr.bin/mg/mg.1, Revision 1.37
1.37 ! kjell 1: .\" $OpenBSD: mg.1,v 1.36 2008/05/29 19:58:15 sobrado Exp $
1.34 kjell 2: .\" This file is in the public domain.
1.9 niklas 3: .\"
1.37 ! kjell 4: .Dd $Mdocdate: May 29 2008 $
1.2 deraadt 5: .Dt MG 1
6: .Os
7: .Sh NAME
8: .Nm mg
9: .Nd emacs-like text editor
10: .Sh SYNOPSIS
11: .Nm mg
1.36 sobrado 12: .Op Fl n
13: .Op Fl f Ar mode
14: .Op + Ns Ar number
15: .Op Ar
1.2 deraadt 16: .Sh DESCRIPTION
17: .Nm
1.3 aaron 18: is intended to be a small, fast, and portable editor for
1.33 kjell 19: people who can't (or don't want to) run emacs for one
1.2 deraadt 20: reason or another, or are not familiar with the
21: .Xr vi 1
1.6 aaron 22: editor.
23: It is compatible with emacs because there shouldn't
1.2 deraadt 24: be any reason to learn more editor types than emacs or
25: .Xr vi 1 .
1.16 deraadt 26: .Pp
1.17 vincent 27: The options are as follows:
1.21 henning 28: .Bl -tag -width Ds
1.36 sobrado 29: .It + Ns Ar number
1.16 deraadt 30: Go to the line specified by number (do not insert
1.33 kjell 31: a space between the
32: .Sq +
33: sign and the number).
1.20 mjc 34: If a negative number is specified, the line number counts
35: backwards from the end of the file i.e. +-1 will be the last
36: line of the file, +-2 will be second last, and so on.
1.36 sobrado 37: .It Fl f Ar mode
1.17 vincent 38: Run the mode command for all buffers created from
39: arguments on the command line, including the
40: scratch buffer and all files.
1.21 henning 41: .It Fl n
42: Turn off backup file generation.
1.16 deraadt 43: .El
1.33 kjell 44: .Sh WINDOWS AND BUFFERS
45: When a file is loaded into
46: .Nm ,
47: it is stored in a
48: .Em buffer .
49: This buffer may be displayed on the screen in more than one window.
50: At present, windows may only be split horizontally, so each window is
51: delineated by a modeline at the bottom.
52: If changes are made to a buffer, it will be reflected in all open windows.
53: .Sh POINT AND MARK
54: The current cursor location in
55: .Nm
56: is called the
1.37 ! kjell 57: .Em point
! 58: (or
! 59: .Em dot ) .
1.33 kjell 60: It is possible to define a window-specific region of text by setting a second
61: location, called the
62: .Em mark .
63: The
64: .Em region
65: is the text between point and mark inclusive.
66: Deleting the character at the mark position leaves
67: the mark at the point of deletion.
68: .Pp
69: Note: The point and mark are window-specific in
70: .Nm ,
71: not buffer-specific, as in other emacs flavours.
72: .Sh DEFAULT KEY BINDINGS
1.6 aaron 73: Normal editing commands are very similar to Gnu Emacs.
1.37 ! kjell 74: In the following examples, C-x means control-X, and M-x means Meta-X,
1.4 deraadt 75: where the Meta key may be either a special key on your keyboard
76: or the ALT key; otherwise ESC followed by the key X works as well.
77: .Pp
1.37 ! kjell 78: .Bl -tag -width xxxxxxxxxx -compact
! 79: .It C-SPC
! 80: set-mark-command
! 81: .It C-a
! 82: beginning-of-line
! 83: .It C-b
! 84: backward-char
! 85: .It C-d
! 86: delete-char
! 87: .It C-e
! 88: end-of-line
! 89: .It C-f
! 90: forward-char
! 91: .It C-g
! 92: keyboard-quit
! 93: .It C-h C-h
! 94: help-help
! 95: .It C-h a
! 96: apropos
! 97: .It C-h b
! 98: describe-bindings
! 99: .It C-h c
! 100: describe-key-briefly
! 101: .It C-j
! 102: newline-and-indent
! 103: .It C-k
! 104: kill-line
! 105: .It C-l
! 106: recenter
! 107: .It RET
! 108: newline
! 109: .It C-n
! 110: next-line
! 111: .It C-o
! 112: open-line
! 113: .It C-p
! 114: previous-line
! 115: .It C-q
! 116: quoted-insert
! 117: .It C-r
! 118: isearch-backward
! 119: .It C-s
! 120: isearch-forward
! 121: .It C-t
! 122: transpose-chars
! 123: .It C-u
! 124: universal-argument
! 125: .It C-v
! 126: scroll-up
! 127: .It C-w
! 128: kill-region
! 129: .It C-x C-b
! 130: list-buffers
! 131: .It C-x C-c
! 132: save-buffers-kill-emacs
! 133: .It C-x C-f
! 134: find-file
! 135: .It C-x C-g
! 136: keyboard-quit
! 137: .It C-x C-l
! 138: downcase-region
! 139: .It C-x C-o
! 140: delete-blank-lines
! 141: .It C-x C-q
! 142: toggle-read-only
! 143: .It C-x C-r
! 144: find-file-read-only
! 145: .It C-x C-s
! 146: save-buffer
! 147: .It C-x C-u
! 148: upcase-region
! 149: .It C-x C-v
! 150: find-alternate-file
! 151: .It C-x C-w
! 152: write-file
! 153: .It C-x C-x
! 154: exchange-point-and-mark
! 155: .It C-x (
! 156: start-kbd-macro
! 157: .It C-x )
! 158: end-kbd-macro
! 159: .It C-x 0
! 160: delete-window
! 161: .It C-x 1
! 162: delete-other-windows
! 163: .It C-x 2
! 164: split-window-vertically
! 165: .It C-x 4 C-f
! 166: find-file-other-window
! 167: .It C-x 4 C-g
! 168: keyboard-quit
! 169: .It C-x 4 b
! 170: switch-to-buffer-other-window
! 171: .It C-x 4 f
! 172: find-file-other-window
! 173: .It C-x =
! 174: what-cursor-position
! 175: .It C-x ^
! 176: enlarge-window
! 177: .It C-x `
! 178: next-error
! 179: .It C-x b
! 180: switch-to-buffer
! 181: .It C-x d
! 182: dired
! 183: .It C-x e
! 184: call-last-kbd-macro
! 185: .It C-x f
! 186: set-fill-column
! 187: .It C-x g
! 188: goto-line
! 189: .It C-x i
! 190: insert-file
! 191: .It C-x k
! 192: kill-buffer
! 193: .It C-x n
! 194: other-window
! 195: .It C-x o
! 196: other-window
! 197: .It C-x p
! 198: previous-window
! 199: .It C-x s
! 200: save-some-buffers
! 201: .It C-x u
! 202: undo
! 203: .It C-y
! 204: yank
! 205: .It C-z
! 206: suspend-emacs
! 207: .It M-C-v
! 208: scroll-other-window
! 209: .It M-SPC
! 210: just-one-space
1.23 deraadt 211: .It M-%
1.37 ! kjell 212: query-replace
1.4 deraadt 213: .It M-<
1.37 ! kjell 214: beginning-of-buffer
1.4 deraadt 215: .It M->
1.37 ! kjell 216: end-of-buffer
! 217: .It M-\e
! 218: delete-horizontal-space
! 219: .It M-b
! 220: backward-word
! 221: .It M-c
! 222: capitalize-word
! 223: .It M-d
! 224: kill-word
! 225: .It M-f
! 226: forward-word
! 227: .It M-l
! 228: downcase-word
! 229: .It M-q
! 230: fill-paragraph
! 231: .It M-r
! 232: search-backward
! 233: .It M-s
! 234: search-forward
! 235: .It M-u
! 236: upcase-word
! 237: .It M-v
! 238: scroll-down
! 239: .It M-w
! 240: copy-region-as-kill
! 241: .It M-x
! 242: execute-extended-command
! 243: .It M-{
! 244: backward-paragraph
! 245: .It M-}
! 246: forward-paragraph
! 247: .It M-~
! 248: not-modified
! 249: .It M-DEL
! 250: backward-kill-word
! 251: .It C-_
! 252: undo
! 253: .It )
! 254: blink-and-insert
! 255: .It DEL
! 256: delete-backward-char
1.4 deraadt 257: .El
258: .Pp
1.37 ! kjell 259: For a complete description of
! 260: .Nm
! 261: commands, see
! 262: .Sx MG COMMANDS .
! 263: To see the active keybindings at any time, type
1.4 deraadt 264: .Dq M-x describe-bindings .
1.37 ! kjell 265: .Sh MG COMMANDS
1.33 kjell 266: Commands are invoked by
267: .Dq M-x ,
268: or by binding to a key.
269: Many commands take an optional numerical parameter,
270: .Va n .
271: This parameter is set either by
272: M-<n> (where
273: .Va n
274: is the numerical argument) before the command, or by
275: one or more invocations of the universal argument, usually bound to C-U.
276: When invoked in this manner, the value of the numeric parameter to
277: be passed is displayed in the minibuffer before the M-x.
1.37 ! kjell 278: One common use of the parameter is in mode toggles (e.g.
! 279: make-backup-files).
! 280: If no parameter is supplied, the mode is toggled to its
! 281: alternate state.
! 282: If a positive parameter is supplied, the mode is forced to on.
! 283: Otherwise, it is forced to off.
! 284: .\"
! 285: .Bl -tag -width xxxxx
! 286: .It apropos
! 287: Help Apropos.
! 288: Prompt the user for a string, open the *help* buffer,
! 289: and list all
! 290: .Nm
! 291: commands that contain that string.
! 292: .It auto-execute
! 293: Register an auto-execute hook; that is, specify a filename pattern
! 294: (conforming to the shell's filename globbing rules) and an associated
! 295: function to execute when a file matching the specified pattern
! 296: is read into a buffer.
! 297: .It auto-fill-mode
! 298: Toggle auto-fill mode (sometimes called mail-mode),
! 299: where text inserted past the fill column is automatically wrapped
! 300: to a new line.
! 301: .It auto-indent-mode
! 302: Toggle indent mode, where identation is preserved after a newline.
! 303: .It backward-char
! 304: Move cursor backwards one character.
! 305: .It backward-kill-word
! 306: Kill text backwards by
! 307: .Va n
! 308: words.
! 309: .It backward-paragraph
! 310: Move cursor backwards
! 311: .Va n
! 312: paragraphs.
! 313: Paragraphs are delimited by <NL><NL> or <NL><TAB> or <NL><SPACE>.
! 314: .It backward-word
! 315: Move cursor backwards by the specified number of words.
! 316: .It beginning-of-buffer
! 317: Move cursor to the top of the buffer.
! 318: .It beginning-of-line
! 319: Move cursor to the beginning of the line.
! 320: .It blink-and-insert
! 321: Self-insert a character, then search backwards and blink its
! 322: matching delimeter.
! 323: For delimeters other than
! 324: parenthesis, brackets, and braces, the character itself
! 325: is used as its own match.
! 326: .It bsmap-mode
! 327: Toggle bsmap mode, where DEL and c-H are swapped.
! 328: .It call-last-kbd-macro
! 329: Invoke the keyboard macro.
! 330: .It capitalize-word
! 331: Capitalize
! 332: .Va n
! 333: words; i.e. convert the first character of the word to
! 334: upper case, and subsequent letters to lower case.
! 335: .It cd
! 336: Change the global working directory.
! 337: See also global-wd-mode.
! 338: .It copy-region-as-kill
! 339: Copy all of the characters in the region to the kill buffer,
! 340: clearing the mark afterwards.
! 341: This is a bit like a kill-region followed by a yank.
! 342: .It count-matches
! 343: Count the number of lines matching the supplied regular expression.
! 344: .It count-non-matches
! 345: Count the number of lines not matching the supplied regular expression.
! 346: .It define-key
! 347: Prompts the user for a named keymap (mode),
! 348: a key, and an mg command, then creates a keybinding in the appropriate
! 349: map.
! 350: .It delete-backward-char
! 351: Delete backwards
! 352: .Va n
! 353: characters.
! 354: Like delete-char, this actually does a kill if presented
! 355: with an argument.
! 356: .It delete-blank-lines
! 357: Delete blank lines around dot.
! 358: If dot is sitting on a blank line, this command
! 359: deletes all the blank lines above and below the current line.
! 360: Otherwise, it deletes all of the blank lines after the current line.
! 361: .It delete-char
! 362: Delete
! 363: .Va n
! 364: characters forward.
! 365: If any argument is present, it kills rather than deletes,
! 366: saving the result in the kill buffer.
! 367: .It delete-horizontal-space
! 368: Delete any whitespace around the dot.
! 369: .It delete-leading-space
! 370: Delete leading whitespace on the current line.
! 371: .It delete-trailing-space
! 372: Delete trailing whitespace on the current line.
! 373: .It delete-matching-lines
! 374: Delete all lines after dot that contain a string matching
! 375: the supplied regular expression.
! 376: .It delete-non-matching-lines
! 377: Delete all lines after dot that contain a string matching
! 378: the supplied regular expression.
! 379: .It delete-other-windows
! 380: Make the current window the only window visible on the screen.
! 381: .It delete-window
! 382: Delete current window.
! 383: .It describe-bindings
! 384: List all global and local keybindings, putting the result in
! 385: the *help* buffer.
! 386: .It describe-key-briefly
! 387: Read a key from the keyboard, and look it up in the keymap.
! 388: Display the name of the function currently bound to the key.
! 389: .It digit-argument
! 390: Process a numerical argument for keyboard-invoked functions.
! 391: .It downcase-region
! 392: Set all characters in the region to lower case.
! 393: .It downcase-word
! 394: Set characters to lower case, starting at the dot, and ending
! 395: .Va n
! 396: words away.
! 397: .It emacs-version
! 398: Return an mg version string.
! 399: .It end-kbd-macro
! 400: Stop defining a keyboard macro.
! 401: .It end-of-buffer
! 402: Move cursor to the end of the buffer.
! 403: .It end-of-line
! 404: Move cursor to the end of the line
! 405: .It enlarge-window
! 406: Enlarge the current window by shrinking either the window above
! 407: or below it.
! 408: .It eval-current-buffer
! 409: Evaluate the current buffer as a series of mg commands.
! 410: Useful for testing
! 411: .Nm
! 412: startup files.
! 413: .It eval-expression
! 414: Get one line from the user, and run it.
! 415: Useful for testing expressions in
! 416: .Nm
! 417: startup files.
! 418: .It exchange-point-and-mark
! 419: Swap the values of "dot" and "mark" in the current window.
! 420: Return an error if no mark is set.
! 421: .It execute-extended-command
! 422: Invoke an extended command; i.e. M-x.
! 423: Call the message line routine to read in the command name and apply
! 424: autocompletion to it.
! 425: When it comes back, look the name up in the symbol table and run the
! 426: command if it is found, passing arguments as necessary.
! 427: Print an error if there is anything wrong.
! 428: .It fill-paragraph
! 429: Justify a paragraph, wrapping text at the current fill column.
! 430: .It find-file
! 431: Select a file for editing.
! 432: First check if you can find the file
! 433: in another buffer; if you can find it, just switch to the buffer.
! 434: If you cannot find the file, create a new buffer, read in the
! 435: file from disk, and switch to the new buffer.
! 436: .It find-file-read-only
! 437: Same as find-file, except the new buffer is set to read-only.
! 438: .It find-alternate-file
! 439: Replace the current file with an alternate one.
! 440: Semantics for finding the replacement file are the same as
! 441: 'find-file', except the current buffer is killed before the switch.
! 442: If the kill fails, or is aborted, revert to the original file.
! 443: .It find-file-other-window
! 444: Opens the specified file in a second buffer.
! 445: Splits the current window if necessary.
! 446: .It forward-char
! 447: Move cursor forwards (or backwards, if
! 448: .Va n
! 449: is negative)
! 450: .Va n
! 451: characters.
! 452: Returns an error if the end of buffer is reached.
! 453: .It forward-paragraph
! 454: Move forward
! 455: .Va n
! 456: paragraphs.
! 457: Paragraphs are delimited by <NL><NL> or <NL><TAB> or <NL><SPACE>
! 458: .It forward-word
! 459: Move the cursor forward by the specified number of words.
! 460: .It global-set-key
! 461: Bind a key in the global (fundamental) key map.
! 462: .It global-unset-key
! 463: Unbind a key from the global (fundamental) key map; i.e. set it to 'rescan'
! 464: .It global-wd-mode
! 465: Toggle global working-directory mode.
! 466: When enabled,
! 467: .Nm
! 468: defaults to opening files (and executing commands like compile and grep)
! 469: relative to the global working directory
! 470: When disabled, a working directory is set for each buffer.
! 471: .It goto-line
! 472: Go to a specific line.
! 473: If an argument is present, then
! 474: it is the line number, else prompt for a line number to use.
! 475: .It help-help
! 476: prompts for one of (a)propos, (b)indings, des(c)ribe key briefly
! 477: .It insert
! 478: Insert a string, mainly for use from macros.
! 479: .It insert-buffer
! 480: Insert the contents of another buffer at dot
! 481: .It insert-file
! 482: Insert a file into the current buffer at dot.
! 483: .It insert-with-wrap
! 484: Insert the bound character with word wrap.
! 485: Check to see if we're past the fill column, and if so,
! 486: justify this line.
! 487: .It isearch-backward
! 488: Use incremental searching, initially in the reverse direction.
! 489: isearch ignores any explicit arguments.
! 490: If invoked during macro definition or evaluation, the non-incremental
! 491: search-backward is invoked instead.
! 492: .It isearch-forward
! 493: Use incremental searching, initially in the forward direction.
! 494: isearch ignores any explicit arguments.
! 495: If invoked during macro definition or evaluation, the non-incremental
! 496: search-forward is invoked instead.
! 497: .It just-one-space
! 498: Delete any whitespace around dot, then insert a space.
! 499: .It keyboard-quit
! 500: Abort the current action.
! 501: .It kill-buffer
! 502: Dispose of a buffer, by name.
! 503: Prompt the user if the buffer
! 504: has been changed.
! 505: .It kill-line
! 506: Kill line.
! 507: If called without an argument, it kills from dot to the end
! 508: of the line, unless it is at the end of the line, when it kills the
! 509: newline.
! 510: If called with an argument of 0, it kills from the start of the
! 511: line to dot.
! 512: If called with a positive argument, it kills from dot
! 513: forward over that number of newlines.
! 514: If called with a negative argument
! 515: it kills any text before dot on the current line, then it kills back
! 516: abs(n) lines.
! 517: .It kill-paragraph
! 518: Delete
! 519: .Va n
! 520: paragraphs starting with the current one.
! 521: .It kill-region
! 522: Kill the currently defined region
! 523: .It kill-word
! 524: Delete forward
! 525: .Va n
! 526: words.
! 527: .It line-number-mode
! 528: Toggle whether line and column numbers are displayed in the modeline
! 529: .It list-buffers
! 530: Display the list of available buffers.
! 531: .It load
! 532: Prompt the user for a filename, and then execute commands
! 533: from that file.
! 534: .It local-set-key
! 535: Bind a key mapping in the local (topmost) mode.
! 536: .It local-unset-key
! 537: Unbind a key mapping in the local (topmost) mode.
! 538: .It make-backup-files
! 539: Toggle generation of backup files.
! 540: .It meta-key-mode
! 541: When disabled, the meta key can be used to insert extended-ascii (8-bit)
! 542: characters.
! 543: When enabled, the meta key acts as usual.
! 544: .It negative-argument
! 545: Process a negative argument for keyboard-invoked functions
! 546: .It newline
! 547: Insert a newline into the current buffer.
! 548: .It newline-and-indent
! 549: Insert a newline, then enough tabs and spaces to duplicate the indentation
! 550: of the previous line.
! 551: Assumes tabs are every eight characters.
! 552: .It next-line
! 553: Move forward
! 554: .Va n
! 555: lines.
! 556: .It no-tab-mode
! 557: Toggle notab mode.
! 558: In this mode, spaces are inserted rather than tabs.
! 559: .It not-modified
! 560: Turn off the modified flag in the current buffer.
! 561: .It open-line
! 562: Open up some blank space.
! 563: Essentially, insert
! 564: .Va n
! 565: newlines, then back up over them.
! 566: .It other-window
! 567: The command to make the next (down the screen) window the current
! 568: window.
! 569: There are no real errors, although the command does nothing if
! 570: there is only 1 window on the screen.
! 571: .It overwrite-mode
! 572: Toggle overwrite mode, where typing in a buffer overwrites
! 573: existing characters rather than inserting them.
! 574: .It prefix-region
! 575: Inserts a prefix string before each line of a region.
! 576: The prefix string is settable by using 'set-prefix-string'.
! 577: .It previous-line
! 578: Move backwards
! 579: .Va n
! 580: lines.
! 581: .It previous-window
! 582: This command makes the previous (up the screen) window the
! 583: current window.
! 584: There are no errors, although the command does not do
! 585: a lot if there is only 1 window.
! 586: .It push-shell
! 587: Suspend mg and switch to alternate screen, if available.
! 588: .It pwd
! 589: Display current (global) working directory in the status area.
! 590: .It query-replace
! 591: Query Replace.
! 592: Search and replace strings selectively, prompting after each match.
! 593: .It replace-string
! 594: Replace string globally without individual prompting.
! 595: .It query-replace-regexp
! 596: Replace strings selectively.
! 597: Does a search and replace operation using regular
! 598: expressions for both patterns.
! 599: .It quoted-insert
! 600: Insert the next character verbatim into the current buffer; i.e. ignore
! 601: any function bound to that key.
! 602: .It re-search-again
! 603: Perform a regular expression search again, using the same search
! 604: string and direction as the last search command.
! 605: .It re-search-backward
! 606: Search backwards using a regular expression.
! 607: Get a search string from the user, and search, starting at dot
! 608: and proceeding toward the front of the buffer.
! 609: If found dot is left
! 610: pointing at the first character of the pattern [the last character that
! 611: was matched].
! 612: .It re-search-forward
! 613: Search forward using a regular expression.
! 614: Get a search string from the user and search for it starting at dot.
! 615: If found, move dot to just after the matched characters.
! 616: display does all
! 617: the hard stuff.
! 618: If not found, it just prints a message.
! 619: .It recenter
! 620: Reposition dot in the current window.
! 621: by default, The dot is centered.
! 622: If given a positive argument (n), the display is repositioned to line
! 623: n.
! 624: If
! 625: .Va n
! 626: is negative, it is that line from the bottom
! 627: .It redraw-display
! 628: Refresh the display.
! 629: Recomputes all window sizes in case something has changed.
! 630: .It save-buffer
! 631: Save the contents of the current buffer if it has been changed,
! 632: optionally creating a backup copy.
! 633: .It save-buffers-kill-emacs
! 634: Offer to save modified buffers and quit mg.
! 635: .It save-some-buffers
! 636: Look through the list of buffers, offering to save any buffer that
! 637: has been changed.
! 638: Buffers that are not associated with files (such
! 639: as *scratch*, *grep*, *compile*) are ignored.
! 640: .It scroll-down
! 641: Scroll backwards
! 642: .Va n
! 643: pages.
! 644: A two-line overlap between pages is
! 645: assumed.
! 646: If given a repeat argument, scrolls back lines, not pages.
! 647: .It scroll-one-line-down
! 648: Scroll the display down
! 649: .Va n
! 650: lines without changing the cursor position.
! 651: .It scroll-one-line-up
! 652: Scroll the display
! 653: .Va n
! 654: lines up without moving the cursor position
! 655: .It scroll-other-window
! 656: Scroll the next window in the window list window forward
! 657: .Va n
! 658: pages.
! 659: .It scroll-up
! 660: Scroll forward one page.
! 661: A two-line overlap between pages is
! 662: assumed.
! 663: If given a repeat argument, scrolls back lines, not pages.
! 664: .It search-again
! 665: Search again, using the same search string and direction as the last
! 666: search command.
! 667: .It search-backward
! 668: Reverse search.
! 669: Get a search string from the user, and search, starting
! 670: at dot and proceeding toward the front of the buffer.
! 671: If found, dot is
! 672: left pointing at the first character of the pattern (the last character
! 673: that was matched).
! 674: .It search-forward
! 675: Search forward.
! 676: Get a search string from the user, and search for it
! 677: starting at dot.
! 678: If found, dot gets moved to just after the matched
! 679: characters, if not found, print a message.
! 680: .It self-insert-command
! 681: Insert a character.
! 682: .It set-case-fold-search
! 683: Set case-fold searching, causing case nopt to matter
! 684: in regular expression searches.
! 685: This is the default.
! 686: .It set-default-mode
! 687: Append the supplied mode to the list of default modes
! 688: used by subsequent buffer creation.
! 689: Built in modes include: fill, indent, overwrite, and notab.
! 690: .It set-fill-column
! 691: Prompt the user for a fill column.
! 692: Used by auto-fill-mode.
! 693: .It set-mark-command
! 694: Sets the mark in the current window to the current dot location
! 695: .It set-prefix-string
! 696: Sets the prefix string to be used by the 'prefix-region' command.
! 697: .It shrink-window
! 698: Shrink current window by one line.
! 699: The window immediately below is expanded to pick up the slack.
! 700: If only one window is present, this command has no effect.
! 701: .It space-to-tabstop
! 702: Insert enough spaces to reach the next tab-stop position.
! 703: By default, tab-stops occur every 8 characters.
! 704: .It split-window-vertically
! 705: Split the current window.
! 706: A window smaller than 3 lines cannot be split.
! 707: .It start-kbd-macro
! 708: Start defining a keyboard macro.
! 709: Macro definition is ended by invoking end-kbd-macro.
! 710: .It suspend-emacs
! 711: Suspend mg and switch back to alternate screen, if in use.
! 712: .It switch-to-buffer
! 713: Prompt and switch to a new buffer in the current window.
! 714: .It switch-to-buffer-other-window
! 715: Switch to buffer in another window.
! 716: .It toggle-read-only
! 717: Toggle the read-only flag on the current buffer.
! 718: .It transpose-chars
! 719: Transpose the two characters on either side of dot.
! 720: If dot is at the end of the line transpose the two characters before it.
! 721: Return with an error if dot is at the beginning of line;
! 722: it seems to be a bit pointless to
! 723: make this work.
! 724: .It undo
! 725: Undo the most recent action.
! 726: If invoked again without an intervening command,
! 727: move the undo pointer to the previous action and undo it.
! 728: .It undo-list
! 729: Show the undo records for the current buffer in a new buffer.
! 730: .It universal-argument
! 731: Repeat the next command 4 times.
! 732: Usually bound to C-u.
! 733: This command may be stacked; e.g.
! 734: C-u C-u C-f moves the cursor forward 16 characters.
! 735: .It upcase-region
! 736: Upper case region.
! 737: Change all of the lower case characters in the region to
! 738: upper case
! 739: .It upcase-word
! 740: Move the cursor forward by the specified number of words.
! 741: As you move, convert any characters to upper case.
! 742: .It what-cursor-position
! 743: Display a bunch of useful information about the current location of
! 744: dot.
! 745: The character under the cursor (in octal), the current line, row,
! 746: and column, and approximate position of the cursor in the file (as a
! 747: percentage) is displayed.
! 748: The column position assumes an infinite
! 749: position display; it does not truncate just because the screen does.
! 750: .It write-file
! 751: Ask for a file name and write the contents of the current buffer to
! 752: that file.
! 753: Update the remembered file name and clear the buffer
! 754: changed flag.
! 755: .It yank
! 756: Yank text from kill-buffer.
! 757: Unlike emacs, the mg kill buffer consists only
! 758: of the most recent kill.
! 759: It is not a ring.
! 760: .El
1.33 kjell 761: .Sh CONFIGURATION FILES
1.7 aaron 762: There are two configuration files,
1.3 aaron 763: .Pa .mg ,
1.1 deraadt 764: and
1.3 aaron 765: .Pa .mg-TERM .
766: Here,
767: .Ev TERM
1.15 pvalchev 768: represents the name of your terminal type; e.g., if your terminal type
1.3 aaron 769: is set to
770: .Dq vt100 ,
1.2 deraadt 771: .Nm
1.1 deraadt 772: will use
1.3 aaron 773: .Pa .mg-vt100
1.6 aaron 774: as a startup file.
775: The terminal type startup file is used first.
1.33 kjell 776: .Pp
1.28 jmc 777: The startup file format is a list of commands, one per line, as used for
1.33 kjell 778: interactive evaluation.
779: Strings that are normally entered by the user at any subsequent prompts
780: may be specified after the command name; e.g.:
1.28 jmc 781: .Bd -literal -offset indent
1.37 ! kjell 782: global-set-key ")" self-insert-command
! 783: global-set-key "\^x\^f" find-file
! 784: global-set-key "\e[Z" backward-char
! 785: set-default-mode fill
1.28 jmc 786: set-fill-column 72
1.37 ! kjell 787: auto-execute *.c c-mode
1.28 jmc 788: .Ed
1.3 aaron 789: .Sh FILES
1.8 aaron 790: .Bl -tag -width ~/.mg-TERM -compact
1.3 aaron 791: .It Pa ~/.mg
792: normal startup file
793: .It Pa ~/.mg-TERM
794: terminal-specific startup file
795: .El
796: .Sh SEE ALSO
1.2 deraadt 797: .Xr vi 1
1.29 reyk 798: .Sh CAVEATS
1.37 ! kjell 799: Since it is written completely in C, there is currently no
1.33 kjell 800: language in which you can write extensions;
801: however, you can rebind keys and change certain parameters.
802: .Pp
803: In order to use 8-bit characters (such as German umlauts), the Meta key
804: needs to be disabled via the
805: .Dq meta-key-mode
806: command.
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