ED editor F.Y.I. (Poe, Mar 7 1993, 45) | Documentation bulletin board | bulletin boards

           A
          / \      _             Play Now                         Nemesis on 
          | |     | |  _______   _        _   _______    _______   _    _______
          | |\    | | |   ____| |  \    /  | |   ____|  /   ____| | |  /   ____|
 /-------/-------------------------------------------------------------------,
O= Home <=XX|  About  News  Pics  Adventurers  Wizards  Download  Connect     >
 \-------\-------------------------------------------------------------------'
          | |   \   | |  |____  | |      | | |  |____   ___ \  \  | |  ___ \  \
          | |     \_| |_______| |_|      |_| |_______| |_______/  |_| |_______/
          \ /
           V

Nemesis bulletin boards: Documentation bulletin board, note 21

ED editor F.Y.I. (Poe, Mar 7 1993, 45)

Here are some things which are in the editor but aren't commonly known which
you might find handy to use some time. This is just "For Your Information"

What we call 'ed' here is actually the same as unix 'ex' except maybe for a
few things which don't really matter to the user. So, what can you do with
'ed'? Lots... you probably already know the commands: a, d, p, c, i, x, w, q
and so on, but here I'll explain some other lesser known commands.

First, replacing text on a line or globally is easy to do for instance if you
need to change the name of a variable in the file you can do it with one easy
command and 'ed' will change all occurances of that variable, here is how the
substitution system works...

At the comamnd line:
		     s/pat1/pat2/         replaces the first occurance of pat1
					  in a line with pat2.

		     /pat/d               deletes the next line with pat in it

		     /dog/s/dog/hog/      find the next line with dog in it and
					  then replace dog with hog

		     /dog/s//hog/         does the same as /dog/s/dog/hog/

		     g/house/s//home/g    replaces all occurances of house with
					  home



Addresses

In the following "x" and "y" are integer numbers corrosponding to lines.

At the command line:
			x	go to line x and display it.
			x,y     lines x to y
			.       the current line
			+n      the line which is n lines after the current
				line.
			-n      the line which is n lines before the current
				line.
			

Using these you can add the normal commands (i.e. a, c, i, p, d, m) to them
to do multiple commands.

At the command line:
			x,yp    displays lines x through y
			na      append text after line n
			x,yd    delete lines x to y
			x,ymn   moves lines x to y to after line n

Here are some examples:
			1,5p    shows lines 1 through 5
			6a      append after line 6
			7,21d   deletes lines 7 to 21
			3,5m7   moves lines 3 to 5 after line 7

Reading in a file, appending to a file, writing to a new file.

Here's how to read in a file into your current file:

At the command line:
			xr filename  

This appends the contents of filename after line x. In practice you might 
type 5r filename or r filename. Without a line number it will append the file
after the current line.

Appending lines to a file.

At the command line:
			x,yw filename

This will write lines x through y to filename. If no line numbers are 
spcified it saves the whole file as filename.


There's even more you can do with the editor that I'll write down later...
BTW, I took these examples from and ex reference card published by the 
Waite Group, inc. <-so I don't get arrested :)

>>-Poe-> Chris.

This board is to document how to code various stuff in Nemesis.
Within Nemesis it is located in the inner guild in the village.
If you have written documents that should be placed here or
if you think something important is missing please contact an
Archwizard - see 'help admin' or https://nemesis.de/lpc/help/admin .
Nowadays especially new features etc. are posted here.
The board contains 49 notes:

This page was generated in LPC

Imprint / Impressum