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Added a longer example

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Sami Samhuri 2009-12-06 22:29:05 -08:00
parent 1484ceb268
commit b2bc59b22a
1 changed files with 27 additions and 3 deletions
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README
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@ -46,7 +46,31 @@ el.js.
Running js under rlwrap and then using load('el.js') works just as Running js under rlwrap and then using load('el.js') works just as
well if you don't use Emacs but still want readline. Type EL.repl() well if you don't use Emacs but still want readline. Type EL.repl()
to start the REPL or evaluate one thing with EL.rep, to start the REPL or evaluate one thing with EL.rep,
e.g. El.rep("(* 4 3)") e.g. EL.rep("(* 4 3)")
or a longer example:
js> EL.repl()
elisp>
(defvar *directory* "/Users/sjs" "My home directory")
elisp>
*directory*
["string", "/Users/sjs"]
elisp>
(setq foo 1 bar 2 baz 3)
["number", 3]
elisp>
(/ (+ foo bar baz) 3)
["number", 2]
elisp>
(string-match "[a-z]lurgh" (symbol-name 'foo-blurgh))
["number", 4]
elisp>
q
js>
(If you know how to print without a trailing newline in SpiderMonkey
please let me know.)
There are other interfaces into the parser and evaluator besides the There are other interfaces into the parser and evaluator besides the
shortcuts. new EL.Parser([input]) returns a parser object and likewise shortcuts. new EL.Parser([input]) returns a parser object and likewise
@ -76,9 +100,9 @@ lines.
* expression evaluator * expression evaluator
* simple tagged primitive types * simple tagged primitive types
(string, symbol, primitive, function, number) (string, symbol, lambda, number, cons)
* special forms for defvar, defun, set, setq, and quote * special forms for defvar, defun, set, setq, if, and quote
* eval/apply for atoms, function calls, and a few special forms * eval/apply for atoms, function calls, and a few special forms