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- .Go 1 "INTRODUCTION"
- .PP
- \*E is a clone of vi/ex, the standard UNIX editor.
- \*E supports nearly all of the vi/ex commands,
- in both visual mode and colon mode.
- .PP
- Like vi/ex, \*E stores most of the text in a temporary file, instead of RAM.
- This allows it to edit files that are too large to fit
- in a single process' data space.
- Also, the edit buffer can survive a power failure or crash.
- .PP
- \*E runs under BSD UNIX, AT&T SysV UNIX, Minix, MS-DOS, Atari TOS,
- Coherent, OS9/68000, VMS and AmigaDos.
- The next version is also expected to add MS-Windows, OS/2 and MacOS.
- Contact me before you start porting it to some other OS,
- because somebody else may have already done it for you.
- .PP
- \*E is freely redistributable, in either source form or executable form.
- There are no restrictions on how you may use it.
- .NH 2
- Compiling
- .PP
- See the "Versions" section of this manual for instructions on how to compile
- \*E.
- .PP
- If you want to port \*E to another O.S. or compiler, then
- you should start be reading the "Portability" part of the "Internal" section.
- .NH 2
- Overview of \*E
- .PP
- The user interface of \*E/vi/ex is weird.
- There are two major command modes in \*E, and a few text input modes as well.
- Each command mode has a command which allows you to switch to the other mode.
- .PP
- You will probably use the \fIvisual command mode\fR
- most of the time.
- This is the mode that \*E normally starts up in.
- .PP
- In visual command mode, the entire screen is filled with lines of text
- from your file.
- Each keystroke is interpretted as part of a visual command.
- If you start typing text, it will \fInot\fR be inserted,
- it will be treated as part of a command.
- To insert text, you must first give an "insert text" command.
- This will take some getting used to.
- (An alternative exists.
- Lookup the "inputmode" option.)
- .PP
- The \fIcolon mode\fR is quite different.
- \*E displays a ":" character on the bottom line of the screen, as a prompt.
- You are then expected to type in a command line and hit the <Return> key.
- The set of commands recognized in the colon mode is different
- from visual mode's.
-