E.Com

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Download http://sites.google.com/site/texteditors/Home/files/e14.zip

Download http://cd.textfiles.com/640swstudio/EDITOR/E14.ZIP

 A freeware tiny text editor for MS-DOS.  The E.COM file is all of 5K in size.

 Author:   David Nye, MD
 Download  http://cd.textfiles.com/640swstudio/EDITOR/E14.ZIP
 Family:   TinyEditors
 Platform: MS-DOS
 License:  Freeware

E is written in TASM, and source is included with the distribution. Commands derive in part from WordStar (the WordStar Diamond), plus a number of alt-key combos.

E edits file sizes up to available memory, and has a variety of features:

block and line move and delete functions, to/from buffer or another
find, replace, replace all
set tabs, L and R margins, word wrap, autoindent
set and jump to labels or line number
shell to DOS, one-key execution of batch files
DESQview-compatible (run in a window with direct write disabled)
assembly language (TASM) for speed and compactness, source included
configuration program included to change defaults

It also has a macro capability. You can attach batch files to E F-keys, and have E shell to DOS, run the batch file on the text being edited, then reload the text, allowing you to create filters to perform more complex operations.

The major limitation of E is that lines are silently truncated at column 80 because of the way text is stored in memory. Another limitation is that screen size is hard-coded at 25x80.