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|
gophed: burrowing the gopherspace with ed
===============================================
`gophed` is a simple gopher client in a POSIX shell script. `gophed`
uses ed(1) as a pager and navigator, and is based on an original idea of
an ed-based client by Solene Rapenne (gopher://bitreich.org/1/usr/solene/).
`gophed` is distributed under the MIT License. A copy of the LICENSE is
available in the repo.
Dependencies
==================
`gophed` requires only:
- a POSIX shell (/bin/sh)
- netcat (nc)
- ed (the standard editor!)
- awk
- cut
- sed
Usage
===========
The first time you run `gophed` you need to initialise it via:
```
./gophed -i
```
This will create a few symlinks in the current folder, namely `g`, `v`,
and `d`, which will be used as `gophed` commands. Once `gophed` has
been initialised, you can start visiting some gopherholes:
```
./gophed gopher://kalos.mine.nu
```
or equivalently:
```
./v gopher://kalos.mine.nu
```
This command will download the corresponding resource, and print it on
output with line numbers. An excerpt is reported below:
```
...
15 i+------------------------------------------+ Err kalos.mine.nu 70
16 i Welcome to kalos.mine.nu Gopher-hole Err kalos.mine.nu 70
17 i+------------------------------------------+ Err kalos.mine.nu 70
18 0 About me /me.txt kalos.mine.nu 70
19 0 About this gopherhole /about.txt kalos.mine.nu 70
20 1 Contacts /contacts kalos.mine.nu 70
21 i Err kalos.mine.nu 70
22 1 My gopherhole @SDF /users/katolaz sdf.org 70
23 1 My gopherhole @republic.circumlunar.space /~katolaz/ republic.circumlunar.space 70
24 1 My Phlog @republic.circumlunar.space /~katolaz/phlog republic.circumlunar.space 70
25 i+------------------------------------------+ Err kalos.mine.nu 70
26 i Projects Err kalos.mine.nu 70
27 i+------------------------------------------+ Err kalos.mine.nu 70
28 1 Burrow the Burrows (crawling the Gopherspace) /burrow/index.gph kalos.mine.nu 70
29 1 gosher -- a Gopher server in a shell script /software/gosher kalos.mine.nu 70
...
=
```
The final "=" is the `gophed` default prompt. No need to say that you
can change the default prompt to any single character by changing the
PROMPT variable. Now, if you want to visit the selector at line 23, you
would type:
```
!./g % 24 [ENTER]
```
at the prompt. This will effectively spawn another `gophed` instance,
telling it to get the selector at line 23 in the current document, and
to load the corresponding resource. In this case we will have something
like:
```
1 i ________ ____ Err republic.circumlunar.space 70
2 i /_ __/ /_ ___ / __ \_ ______ _______ _____ ____ Err republic.circumlunar.space 70
3 i / / / __ \/ _ \ / / / / | /| / / __ `/ ___/ | / / _ \/ __ \ Err republic.circumlunar.space 70
4 i / / / / / / __/ / /_/ /| |/ |/ / /_/ / / | |/ / __/ / / / Err republic.circumlunar.space 70
5 i /_/ /_/ /_/\___/ /_____/ |__/|__/\__,_/_/ |___/\___/_/ /_/ Err republic.circumlunar.space 70
6 i Err republic.circumlunar.space 70
7 i ____ __ __ _ __ __ Err republic.circumlunar.space 70
8 i / __ )/ /___ ______/ /___________ ___ (_) /_/ /_ Err republic.circumlunar.space 70
9 i / __ / / __ `/ ___/ //_/ ___/ __ `__ \/ / __/ __ \ Err republic.circumlunar.space 70
10 i / /_/ / / /_/ / /__/ ,< (__ ) / / / / / / /_/ / / / Err republic.circumlunar.space 70
11 i /_____/_/\__,_/\___/_/|_/____/_/ /_/ /_/_/\__/_/ /_/ Err republic.circumlunar.space 70
12 i Err republic.circumlunar.space 70
13 i+------------------------------------------------------------------+ Err republic.circumlunar.space 70
14 i "their swords were forged by dwarves, in the mists of time..." Err republic.circumlunar.space 70
15 i+------------------------------------------------------------------+ Err republic.circumlunar.space 70
16 i Err republic.circumlunar.space 70
17 0 About this phlog /~katolaz/phlog/about.txt republic.circumlunar.space 70
18 i Err republic.circumlunar.space 70
.....
26 i+------------------------------------------------------------------+ Err republic.circumlunar.space 70
27 1 << Back to my gopherhole /~katolaz/ republic.circumlunar.space 70
28 .
=
```
Well, if you want now to go to the resource at line 17, you would type:
```
!./g % 17 [ENTER]
```
when you are done with viewing the current resource, you just type:
```
q [ENTER]
```
at the `gophed` prompt (well, that one is indeed ed(1) prompt...), and
you will be back at the gopher resources you had visited before. Typing
```
q [ENTER]
```
again will bring you back in history again. If you give a `q` command on
the first page, you will leave `gophed`. If you would instead like to
save the resource pointed by a selector, you will use the command:
```
!./d % NUMBER [ENTER]
```
where NUMBER is the number of the line where the selector appears in the
current page. The resource will be saved at "HOSTNAME/URI" where
HOSTNAME is the name of the host and URI is the path to the resource.
If you don't remember which line is which, you can just give:
```
%n [ENTER]
```
at the prompt. If you don't remember which resource you are currently
visiting, typing:
```
f [ENTER]
```
at the `gophed` prompt will give some hints. If you are an ed(1) user,
you will totally understand what we are up to here, and probably will
now have a good laugh. If you don't know how to use ed(1), instead, then
this is probably the right time to start learning it. Remember: ed(1) is
the standard editor, and an awesome one at that...
HH
KatolaZ
|
