mirror of https://github.com/rfivet/uemacs.git
173 lines
9.9 KiB
Plaintext
173 lines
9.9 KiB
Plaintext
=> µEMACS 4.2 HELP INDEX
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.. The very basics
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.. Cursor movement
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.. File commands
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.. Miscellaneous character commands
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.. Mode commands
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.. Keys and commands
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.. Deleting and inserting
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.. Formatting
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.. Window commands
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.. Buffer commands
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.. Searching and replacing
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.. Accessing the operating system
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.. Macro commands
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.. Miscellaneous
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.. Functions
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.. System variables
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.. File name completion
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-------------------------------------------------------------------------------
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=> THE VERY BASICS
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Notations: ^X means <Ctrl> and X. The <Meta> key is <Esc> on most systems.
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Exiting: ^G aborts almost any operation. ^X ^C will get you out of µEMACS.
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A BUFFER is a named area containing a FILE being edited. Many buffers may
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be active at once. Many WINDOWS may be active at once on the screen. All
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windows may show different parts of the same buffer, or each may display a
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different one.
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-------------------------------------------------------------------------------
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=> CURSOR MOVEMENT
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Backward character .... ^B Forward character ..... ^F
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Previous word ......... Meta B Next word ............. Meta F
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Beginning of line ..... ^A End of line ........... ^E
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Previous line ......... ^P Next line ............. ^N
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Previous paragraph .... Meta P Next paragraph ........ Meta N
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Previous page ......... ^Z Next page ............. ^V
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Beginning of file ..... Meta < End of file ........... Meta >
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-------------------------------------------------------------------------------
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=> FILE COMMANDS
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Find file ............. ^X ^F Quick exit ............ Meta Z
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View file ............. ^X ^V Exit µEMACS ........... ^X ^C
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Insert file ........... ^X ^I
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Change file name ...... ^X N Filter buffer ......... ^X #
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Save file ............. ^X ^D
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Read file ............. ^X ^R
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Write file ............ ^X ^W Execute file .......... not bound
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-------------------------------------------------------------------------------
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=> MISCELLANEOUS CHARACTER COMMANDS
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Newline ............... ^M Transpose characters .. ^T
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Newline and indent .... ^J Trim line ............. ^X ^T
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Open line ............. ^O
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Handle tab ............ ^I Quote character ....... ^X Q
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Insert space .......... ^C
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Goto line ............. Meta G Abort command ......... ^G
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Goto matching fence ... Meta ^F
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-------------------------------------------------------------------------------
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=> MODE COMMANDS
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Add mode .............. ^X M Add global mode ....... Meta M
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Delete mode ........... ^X ^M Delete global mode .... Meta ^M
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OVER :: Overwrite, don't insert MAGIC :: Match patterns in search
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WRAP :: Automatic carriage return ^ $ Beginning and end of line
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VIEW :: View only, don't change . Any character \c Character c
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CMODE :: C program indenting c* Any number of character c
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EXACT :: Match case in search [ ] Character class
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-------------------------------------------------------------------------------
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=> KEYS AND COMMANDS
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Bind to key ........... Meta K Help .................. Meta ?
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Unbind key ............ Meta ^K Apropos ............... Meta A
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Describe key .......... ^X ? Abort command ......... ^G
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Describe bindings ..... not bound
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Meta prefix ........... Esc :: Although meta-prefix can be bound to
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Cntlx prefix .......... ^X :: some other key, no other command can
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Execute named command . Meta X :: be bound to Esc.
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-------------------------------------------------------------------------------
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=> DELETING AND INSERTING
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Delete previous character ^H Delete next character . ^D
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Delete previous word .. Meta ^H Delete next word ...... Meta D
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Kill to end of line ... ^K Set mark .............. Meta Space
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Kill region ........... ^W Yank .................. ^Y
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Kill paragraph ........ Meta ^W Exchange point and mark ^X ^X
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Delete blank lines .... ^X ^O :: A region is defined as the area between
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Copy region ........... Meta W :: the mark and the current position.
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-------------------------------------------------------------------------------
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=> FORMATTING
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Case word upper ....... Meta U Case word lower ....... Meta L
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Case region upper ..... ^X ^U Case region lower ..... ^X ^L
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Case word capitalize .. Meta C Trim line ............. ^X ^T
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Detab line ............ ^X ^A
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Set fill column ....... ^X F Entab line ............ ^X ^E
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Fill paragraph ........ Meta Q Change screen size .... Meta ^D
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Justify paragraph ..... Meta J Change screen width ... Meta ^T
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-------------------------------------------------------------------------------
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=> WINDOW COMMANDS
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Split current window .. ^X 2 Next window ........... ^X O
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Delete other windows .. ^X 1 Previous window ....... ^X P
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Delete window ......... ^X 0 Scroll next up ........ Meta ^Z
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Grow window ........... ^X Z Scroll next down ...... Meta ^V
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Shrink window ......... ^X ^Z Resize window ......... ^X W
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Move window up ........ ^X ^P Save window ........... not bound
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Move window down ...... ^X ^N Restore window ........ not bound
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-------------------------------------------------------------------------------
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=> BUFFER COMMANDS
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Next buffer ........... ^X X Buffer position ....... ^X =
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Select buffer ......... ^X B Unmark buffer ......... Meta ~
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List buffers .......... ^X ^B
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Delete buffer ......... ^X K Write message ......... not bound
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Name buffer ........... Meta ^N Clear message line .... not bound
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Filter buffer ......... ^X #
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Pipe command .......... ^X @ Execute buffer ........ not bound
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-------------------------------------------------------------------------------
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=> SEARCHING AND REPLACING
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Search forward ........ Meta S :: End string with Meta.
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Incremental search .... ^X S :: Search next ^X, stop Meta, cancel ^G.
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Search reverse ........ ^R
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Reverse incremental Hunt forward .......... Alt-S
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search ^X R Hunt backward ......... Alt-R
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Replace string ........ Meta R
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Query replace string .. Meta ^R :: Yes/no Y/N, replace rest !, cancel ^G.
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-------------------------------------------------------------------------------
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=> ACCESSING THE OPERATING SYSTEM
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Quick exit ............ Meta Z :: Write out all changed buffers and exit.
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Exit µEMACS ........... ^X ^C :: Exit without automatic save.
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I shell ............... ^X C :: Start a new command processor.
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Shell command ......... ^X ! :: Execute one operating system command.
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Pipe command .......... ^X @ :: Pipe command results to a new buffer.
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Filter buffer ......... ^X # :: Filter buffer through a program.
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Execute program ....... ^X $ ::
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-------------------------------------------------------------------------------
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=> MACRO COMMANDS
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Begin macro ........... ^X (
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End macro ............. ^X )
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Execute macro ......... ^X E
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Store macro ........... not bound
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Execute macro nn ...... not bound
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Store procedure ....... not bound
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Execute procedure ..... Meta ^E
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-------------------------------------------------------------------------------
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=> MISCELLANEOUS
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Universal argument .... ^U Set mark .............. Meta Space
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Clear and redraw ...... ^L Exchange point and mark ^X ^X
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Redraw display ........ Meta ^L
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Execute named command . Meta X Insert string ......... not bound
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Execute command line .. not bound Overwrite string ...... not bound
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Wrap word ............. not bound
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Count words ........... Meta ^C Update screen ......... not bound
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-------------------------------------------------------------------------------
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=> SYSTEM VARIABLES
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Set ................... Meta ^A Current buffer name ... $cbufname
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Tabulator (4, 8)....... $tab Current file name ..... $cfname
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Screen resolution ..... $sres :: NORMAL, CGA, EGA, VGA
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Display commands ...... $discmd :: TRUE, FALSE
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Scrolling enabled ..... $scroll :: TRUE, FALSE, can only be reset
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Scrolling movement .... $jump :: # lines, default 1, 0 = 1/2 page
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Page overlap .......... $overlap :: # lines, default 0, 0 = 1/3 page
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-------------------------------------------------------------------------------
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=> FUNCTIONS
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&neg, &abs, &add, &sub, &tim, &div, &mod ... Arithmetic
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&equ, &les, &gre ........................... Arithmetic comparisons
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¬, &and, &or ............................ Logical
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&lef s len, &rig s pos, &mid s pos len ..... Substring
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&cat, &len, &upp, &low, &asc, &chr ......... Other string operations
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&seq, &sle, &sgr ........................... String comparisons
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&sin ....................................... String index
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-------------------------------------------------------------------------------
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=> FILE NAME COMPLETION
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File name completion can be used with all file commands (find-file,
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view-file, ...). It is invoked by a <Space> or <Tab>. If there exist more
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than one possible completions they are displayed one by one. If the file
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name contains wild card characters, the name is expanded instead of simple
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completion. Special characters can be entered verbatim by prefixing them
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with ^V (or ^Q).
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-------------------------------------------------------------------------------
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