read.me2

Internal changes to MicroEmacs

William Bader
williambader@hotmail.com
http://williambader.com/

```
	Filled in routines in spawn.c for VMS.
	Added ADM3A support into vmsvt.c for unknown terminals.
	Added bindings for vt100 keypads similar to EDT.
	Added support for 80/132 column mode on VT100 terminals under
		VMS and TERMCAP.
	Redid search scanner so no subroutines calls are made until
		the first character of the pattern is matched.
	Redid parts of display.c to eliminate processes that require
		one subroutine call per character.
	Added fastputc macro that does the equivalent of ttputc
		under VMS and USG.
	Changed VMS part of termio not to abort on input data overruns.
	Added a fast key lookup area so normal keys, the special 'C'
		function done after every command, and the last command
		executed can be found directly without looping through all
		the key bindings.
	Created a callable interface that allows other programs to
		link to emacs and call it like a subroutine.
	Can correctly read, display, and write out files with any ascii
		character from 0 to 255.
	Changed routines in fileio.c to use macro versions of fgetc and fputc.
	Added partial support for vt100 style scrolling regions.
	Added smooth scroll functions that work like edt.
	Added functions to scroll the screen left and right.
	Added support for vt200 style escape sequences.
		esc [ digits ~ becomes SPEC | c where c is what would be
		generated if you hit the key with the ascii value of 'digits'.
	Changed splitwindow to save a pointer to the new window so things
		that call it have the option of setting curwp to it.
	For DECEDT, binding meta-prefix or ctlx-prefix does not undo old keys.
	In macro files, FN# represents esc [ # ~.
	Next-line and previous-line do not reset goal at buffer boundaries.
	Added support for ansi color in tcap.c.
	Added BINARY mode for MSDOS.
	Made automatic indent smarter.
	Added support for 8-bit escape sequences.
	Made function name matching case independent.
	Fixed entab on lines with mixed tabs and spaces.
	Added file and variable name completion.
	Added vga 50 line support.
	Added support for use as a vms callable editor.
	Added $symbol expansion on unix file names.
	Trim, Detab and Entab no longer set buffer changed flag if no changes.
	Added sync() after closing files on UNIX.
	Added more vga 132 column support.
	The buffer-position command now uses real numbers to calculate the percentage to 2 places.
	Increase the keyboard macro buffer from 256 to 2048 keystrokes.
	Interix converts ESC F char to SPEC|CTRL|char when char is a digit or upper case letter.
	Added support for second -g with -2.
	Implemented a repeat count in fill-paragraph.

	Fixed random bugs due to mismatched arguments on subroutine calls.
	Fixed inspound loop in read-only buffers.
	Fixed tcap vt100 optimization for terminals with over 99 lines.
	Fixed getting window size in Linux.
	Fixed listbuffers on buffers with a size of more than 6 digits.
	Fixed calculations on displays with more than 127 rows.

	Suggested xterm command line: xterm -geometry 177x52+0+0 -font 10x20 +sb +sm -ls +u8 -fg white -bg black -xrm *VT100*colorBD: cyan -xrm *VT100*colorUL: yellow
	On HiDPI display: xterm -geometry 177x52+0+0 -fa 'DejaVu Sans Mono' -fs 11 +sb +sm -ls -fg white -bg black -xrm *VT100*colorBD: cyan -xrm *VT100*colorUL: yellow

Instructions for compiling
	Select an option in the Machine/OS section at the top of estruct.h
		BSD 4.x Unix systems should select BSD
		BSD 2.x Unix systems should select BSD and BSD29
		Version 7 Unix systems should select V7 (V7 is a subset of BSD)
		System V Unix systems should select USG
		MSDOS systems should select MSDOS
		VAX/VMS systems should select VMS

	Compiler definition section in estruct.h
		MSDOS systems should select the compiler
		USG systems may select MSC for Xenix style typeahead detection
		VMS and other Unix systems do not need to select anything

	Terminal output section in estruct.h
		Unix systems should select TERMCAP
		MSDOS systems should select IBMPC for direct memory writes or
			ANSI for ansi.sys style writes
		VMS systems should select VMSVT

	Other issues
		For file name completion, check the defines in fileio.c
		For var args compile warnings, check HASVA in display.c

	Building
		On unix-like systems, run "./build.emacs"
			See build.emacs and mymakefile for notes
		On VMS, run "@vmsmake"
		On other systems, compile all C files and link them together

Compilation attempts
	Compiled and ran successfully on
		Vax11c under VMS 4.1 on a VAX-11/750
		Microsoft C 5.0 under MSDOS 3.20
			(compiler crashes or generates incorrect code
			when full optimization enabled)
		Turbo C 1.5 under MSDOS 3.20
		CI86 2.30J under MSDOS 3.20
		Borland C++ 3.1 under MSDOS
		Zortech C++ 3.0, 3.1 under MSDOS
		Symantec C++ 6.1 under MSDOS
		Microsoft C under SCO XENIX 386 2.3, 2.3, SCO UNIX 3.2
		cc under SunOS 3.5? on a Sun 3/360C
		cc under SunOS 4.0 on a Sun 386i
		cc under SunOS 4.0 on a Sun 4
		cc under Solaris 2.1 on a Sun Sparcstation
		cc under HP-UX 11i v3 on a PA-RISC rp3410
		cc under OpenVMS V8.3 on an IA64
		cc under UMIPS 4.3 on a MIPS RC3240
		cc under AIX 3.2 on an RS/6000 340
		cc under A/UX 3.0.1 on a Mac
		cc under BSD2.9 on a PDP-11/70
			(used separate I/D space)
		gcc under FreeBSD-2.2.6
		egcs-1.0.3 under Linux-2.0.34
		gcc-2.95.2 under FreeBSD 4.3
		gcc-2.96 under RedHat Linux 7.1
		gcc-2.95.2 under MacOS X Darwin 5.4
		gcc-3.2.2 under RedHat Linux 9
		gcc-3.4.4 under RedHat FedoraCore 3
		gcc-3.4.6 under FreeBSD 6.2 on Intel
		gcc-3.3 under Windows 7 Interix
		gcc-4.4.0 under Android 4.3 with Terminal IDE
	Compiled but did not run on
		decusc under RSX11M on a PDP-11/73
			(would not link because decusc can not generate
			I/D tasks)
```