crc/retroforth
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

editor: display error when no file specified, adapt to 80 column display by default

Browse source 
FossilOrigin-Name: 6898501e970ad192f73cb610395482b3952fb8e9f6d690f334880191b3f55c60
This commit is contained in:
crc 2019-05-14 11:19:49 +00:00
parent 604fd85578
commit 1beb845cf9
1 changed files with 12 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

19
example/edit.forth
View file

@ -1,10 +1,15 @@
#!/usr/bin/env retro
_ _
| | | |_ _ __ _
| |_| | | | |/ _` |
| _ | |_| | (_| |
|_| |_|\__,_|\__,_|
line oriented editor
# Hua: a text editor written in RETRO
Hua is a small, functional text editor written in RETRO, using
the *RRE* interface. It is line oriented, visual, and tries to
be very simple to use.
Hua is a small, functional text editor written in RETRO for
Unix systems. It is line oriented, visual, and easy to learn.
## Starting
@ -19,8 +24,8 @@ To create a new file:
## A Word of Warning
Hua saves changes as you edit the file. I advise using it along
with a version control system so you can revert changes if or
when needed.
with a version control system so you can revert changes when
needed.
## The Code
@ -28,7 +33,7 @@ Since this runs as a standalone application I use a quick check
to exit if no arguments were passed.
~~~
sys:argc n:zero? [ #0 unix:exit ] if
sys:argc n:zero? [ 'No_file_specified! s:put nl #0 unix:exit ] if
~~~
If I get here, a filename was provided. So I start by creating
@ -39,7 +44,7 @@ from the file to show on screen, and the name of the temporary
file to use when editing.
~~~
#80 'COLS const
#70 'COLS const
#16 'MAX-LINES const
'/tmp/rre.edit 'TEMP-FILE s:const
~~~