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Guile integration may matter, assuming it happens (not everybody seems happy: https://lists.gnu.org/archive/html/emacs-devel/2012-04/msg00291.html https://lists

Guile integration may matter, assuming it happens (not everybody seems happy: https://lists.gnu.org/archive/html/emacs-devel/2012-04/msg00291.html https://lists.gnu.org/archive/html/emacs-devel/2012-04/msg00...) Python in Vim has slowly become the go-to choice to talk to an external program from Vim, because VimScript is simply that bad. I know little, however, about how hard ELisp makes it to interface with an external program. The examples he gives (a JS interpreter in ELisp, and Semantic) lead me to believe that the authors wrote all that in ELisp because it was easier than to play with an external program. Am I wrong? Will Guile ease the task of interfacing with an external program?

to3m 13y ago
It's actually pretty easy to run external programs from elisp. stdin comes from a buffer, and stdout/stderr go to a buffer, and you can use all the usual emacs facilities on the result. See the various interactive modes (e.g., M-x run-python, M-x shell) for a demonstration. I suspect people who write packages entirely in elisp simply like elisp. And why not? The language itself is mostly OK to use, even if it doesn't always conform to modern standards.
- tenfingers 13y ago
  To be honest, ELisp is not bad. Not in the same range as VimScript. In fact, ELisp with this weird concept of I/O through buffers makes a lot of sense for a text editor and I find it quite an elegant concept (not always practical, though). And while ELisp is not really CL, the lacking parts are the interpreter and runtime themselves, not the language. Writing elisp is not hard. What's hard is integrating all the modes, keymaps and quirky behavior of coupling all these smalls bits of code together. This is what makes emacs hard. Emacs, the "core editor" itself, is incredibly small. Way smaller than vim (build it by hand if you don't believe it). Emacs as the editor that you use every day is almost pure extensions. There's a /whole lot/ of global state in an editor. This is not going to change with Python, Guile or any other language. Users that complain about ELisp, most of the time actually never tried to write ELisp at all (they just glue some elisp around in .emacsrc). That's fine, but they don't realize what's going on under the hood. The C/C++ mode in emacs is completely different to the "stupid" syntax highlighting in Vim or most other editors. I normally recommend switching to another editor if after several years you still don't appreciate the difference. IMHO emacs, as it is, is a great editor. ELisp is part of the success (though guile would be a step forward).

to3m 13y ago

It's actually pretty easy to run external programs from elisp. stdin comes from a buffer, and stdout/stderr go to a buffer, and you can use all the usual emacs facilities on the result. See the various interactive modes (e.g., M-x run-python, M-x shell) for a demonstration. I suspect people who write packages entirely in elisp simply like elisp. And why not? The language itself is mostly OK to use, even if it doesn't always conform to modern standards.

tenfingers 13y ago
To be honest, ELisp is not bad. Not in the same range as VimScript. In fact, ELisp with this weird concept of I/O through buffers makes a lot of sense for a text editor and I find it quite an elegant concept (not always practical, though). And while ELisp is not really CL, the lacking parts are the interpreter and runtime themselves, not the language. Writing elisp is not hard. What's hard is integrating all the modes, keymaps and quirky behavior of coupling all these smalls bits of code together. This is what makes emacs hard. Emacs, the "core editor" itself, is incredibly small. Way smaller than vim (build it by hand if you don't believe it). Emacs as the editor that you use every day is almost pure extensions. There's a /whole lot/ of global state in an editor. This is not going to change with Python, Guile or any other language. Users that complain about ELisp, most of the time actually never tried to write ELisp at all (they just glue some elisp around in .emacsrc). That's fine, but they don't realize what's going on under the hood. The C/C++ mode in emacs is completely different to the "stupid" syntax highlighting in Vim or most other editors. I normally recommend switching to another editor if after several years you still don't appreciate the difference. IMHO emacs, as it is, is a great editor. ELisp is part of the success (though guile would be a step forward).