Difference between revisions of "IELM"

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(The simplified code (albeit working) does not represent a proper Emacs hook, so I've restored the original version)
 
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'''IELM (Interactive Emacs Lisp Mode)''' is a nice mode that gives you an interactive [[Emacs Lisp]] shell (or a REPL if you prefer) that you can use for exploratory programming.  You can start it by pressing {{Command|ielm}}. You'll be taken to a buffer named {{Buffer|*ielm*}}, where Emacs Lisp expressions you've entered will be evaluated on pressing the Return key. IELM offers some nice features like tab autocompletion of symbol names and the ability to span an expression over several lines.  
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{{package
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| name=IELM
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| description=Emacs Lisp REPL
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| author=David Smith
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| maintainer=
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| source=
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| in_emacs=yes
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}}
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'''IELM (Interactive Emacs Lisp Mode)''' is a nice mode that gives you an interactive [[Emacs Lisp]] shell (or a {{Acronym|REPL|Read-Eval-Print Loop}} if you prefer) that you can use for exploratory programming.  You can start it by pressing {{Command|ielm}}. You'll be taken to a buffer named {{Buffer|*ielm*}}, where Emacs Lisp expressions you've entered will be evaluated on pressing the Return key. IELM offers some nice features like tab autocompletion of symbol names and the ability to span an expression over several lines.  
  
 
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= Basic setup =
 
= Basic setup =
  
IELM is bundled with Emacs by default. No addition setup is required.
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IELM is bundled with Emacs by default. No additional setup is required.
 
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= Helpful keybindings =
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; {{Keys|Tab}}
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: Complete [[symbol]] at [[Emacs_Terminology#Point|point]].
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; {{Keys|Return}}
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: Evaluate [[expression]]
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<!------------------------------------------------------------------------->
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= Common Customization =
 
= Common Customization =
 
<!-- Customization common to all platforms goes here -->
 
<!-- Customization common to all platforms goes here -->
  
== Show <tt>[[eldoc]]</tt> in IELM ==
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== Show {{ModeLink|eldoc}} in IELM ==
 
<source lang="lisp">
 
<source lang="lisp">
 
(defun my-ielm-mode-defaults ()
 
(defun my-ielm-mode-defaults ()

Latest revision as of 05:20, 23 July 2012

IELM
Description Emacs Lisp REPL
Author David Smith
Part of Emacs yes

IELM (Interactive Emacs Lisp Mode) is a nice mode that gives you an interactive Emacs Lisp shell (or a REPL if you prefer) that you can use for exploratory programming. You can start it by pressing M-x ielm. You'll be taken to a buffer named "*ielm*", where Emacs Lisp expressions you've entered will be evaluated on pressing the Return key. IELM offers some nice features like tab autocompletion of symbol names and the ability to span an expression over several lines.



Basic setup[edit]

IELM is bundled with Emacs by default. No additional setup is required.

Common Customization[edit]

Show eldoc in IELM[edit]

(defun my-ielm-mode-defaults ()
  (turn-on-eldoc-mode))
 
(setq my-ielm-mode-hook 'my-ielm-mode-defaults)
 
(add-hook 'ielm-mode-hook (lambda () (run-hooks 'my-ielm-mode-hook)))

Recommended Reading[edit]


Tutorial Pages[edit]

IELM: A REPL for Emacs