Re: How to get a useful repl with Chicken 5?

[Matt Welland]

For linenoise I was not able to get saving history to work.

I'm having trouble getting breadline to install on Ubuntu on this old laptop. I have libreadline-dev installed but when I do chicken-install breadline I get:

matt@matt-HP-EliteBook-6930p:~$ chicken-install breadline
building breadline
   /home/matt/.cache/chicken-install/breadline/build-breadline -host -D compiling-extension -J -s -regenerate-import-libraries -setup-mode -I /home/matt/.cache/chicken-install/breadline -C -I/home/matt/.cache/chicken-install/breadline -O2 -d1 breadline.scm -o /home/matt/.cache/chicken-install/breadline/breadline.so
Package readline was not found in the pkg-config search path.
Perhaps you should add the directory containing `readline.pc'
to the PKG_CONFIG_PATH environment variable
No package 'readline' found
Package readline was not found in the pkg-config search path.
Perhaps you should add the directory containing `readline.pc'
to the PKG_CONFIG_PATH environment variable
No package 'readline' found
Package readline was not found in the pkg-config search path.
Perhaps you should add the directory containing `readline.pc'
to the PKG_CONFIG_PATH environment variable
No package 'readline' found
Package readline was not found in the pkg-config search path.
Perhaps you should add the directory containing `readline.pc'
to the PKG_CONFIG_PATH environment variable
No package 'readline' found
/usr/bin/ld: cannot find -lncurses
collect2: error: ld returned 1 exit status

Error: shell command terminated with non-zero exit status 256: 'gcc' '/home/matt/.cache/chicken-install/breadline/breadline.o' -o '/home/matt/.cache/chicken-install/breadline/breadline.so' -shared -lreadline -lncurses -L/opt/chicken/5.1.0_WW45/lib -Wl,-R/opt/chicken/5.1.0_WW45/lib -lchicken -lm -ldl
   /home/matt/.cache/chicken-install/breadline/build-breadline -regenerate-import-libraries -setup-mode -static -I /home/matt/.cache/chicken-install/breadline -emit-link-file /home/matt/.cache/chicken-install/breadline/breadline.link -host -D compiling-extension -c -unit breadline -D compiling-static-extension -C -I/home/matt/.cache/chicken-install/breadline -O2 -d1 breadline.scm -o /home/matt/.cache/chicken-install/breadline/breadline.static.o
Package readline was not found in the pkg-config search path.
Perhaps you should add the directory containing `readline.pc'
to the PKG_CONFIG_PATH environment variable
No package 'readline' found
Package readline was not found in the pkg-config search path.
Perhaps you should add the directory containing `readline.pc'
to the PKG_CONFIG_PATH environment variable
No package 'readline' found
Package readline was not found in the pkg-config search path.
Perhaps you should add the directory containing `readline.pc'
to the PKG_CONFIG_PATH environment variable
No package 'readline' found
Package readline was not found in the pkg-config search path.
Perhaps you should add the directory containing `readline.pc'
to the PKG_CONFIG_PATH environment variable
No package 'readline' found
   /opt/chicken/5.1.0_WW45/bin/csc -setup-mode -s -host -I /home/matt/.cache/chicken-install/breadline -C -I/home/matt/.cache/chicken-install/breadline -O2 -d0 breadline.import.scm -o /home/matt/.cache/chicken-install/breadline/breadline.import.so
   /opt/chicken/5.1.0_WW45/bin/csc -host -D compiling-extension -J -s -regenerate-import-libraries -setup-mode -I /home/matt/.cache/chicken-install/breadline -C -I/home/matt/.cache/chicken-install/breadline -O2 -d1 breadline-scheme-completion.scm -o /home/matt/.cache/chicken-install/breadline/breadline-scheme-completion.so
   /opt/chicken/5.1.0_WW45/bin/csc -regenerate-import-libraries -setup-mode -static -I /home/matt/.cache/chicken-install/breadline -emit-link-file /home/matt/.cache/chicken-install/breadline/breadline-scheme-completion.link -host -D compiling-extension -c -unit breadline-scheme-completion -D compiling-static-extension -C -I/home/matt/.cache/chicken-install/breadline -O2 -d1 breadline-scheme-completion.scm -o /home/matt/.cache/chicken-install/breadline/breadline-scheme-completion.static.o
   /opt/chicken/5.1.0_WW45/bin/csc -setup-mode -s -host -I /home/matt/.cache/chicken-install/breadline -C -I/home/matt/.cache/chicken-install/breadline -O2 -d0 breadline-scheme-completion.import.scm -o /home/matt/.cache/chicken-install/breadline/breadline-scheme-completion.import.so
  installing breadline
install: cannot stat '/home/matt/.cache/chicken-install/breadline/breadline.so': No such file or directory

Error: shell command terminated with nonzero exit code
256
"sh /home/matt/.cache/chicken-install/breadline/breadline.install.sh"

On Fri, Jan 31, 2020 at 12:21 AM Vasilij Schneidermann <address@hidden> wrote:

Hello Matt,

> I've read the docs on linenoise and breadline but I'm not seeing how to get
> a useful editable repl.
>
> Any pointers or suggestions would be appreciated.

I've developed breadline.  Its wiki page has an examples section which
shows how to create a custom REPL for programs and points to
<https://github.com/wasamasa/breadline/tree/master/examples> for two
more examples, a `.csirc` (for your other scenario of customizing `csi`)
and how a simple completer can be created.

The story is similar with linenoise, its wiki page has an example
section for general use and a "Using linenoise in csi" one.  Did you
have issues with setting either up?

Vasilij

--

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Complexity is your enemy. Any fool can make something complicated.

It is hard to keep things simple. - Richard Branson.