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improve readme

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Pekka Laiho 2020-12-05 18:00:47 +07:00
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@ -122,11 +122,9 @@ Use the `quote` special form to skip evaluation:
``` ```
> (quote (1 2 3)) > (quote (1 2 3))
(1 2 3) (1 2 3)
> '(1 2 3)
(1 2 3)
``` ```
Use the `quasiquote` special form when you need to turn evaluation back on inside the quoted element. The special forms `unquote` and `unquote-splice` are available for that purpose: Use the `quasiquote` special form when you need to turn on evaluation temporarily inside the quoted element. The special forms `unquote` and `unquote-splice` are available for that purpose:
``` ```
> (def lst (quote (2 3))) > (def lst (quote (2 3)))
@ -140,15 +138,16 @@ Use the `quasiquote` special form when you need to turn evaluation back on insid
(1 2 3 4) (1 2 3 4)
``` ```
### Shortcuts ### Quote shortcuts
You can use the single-quote (`'`), backtick and tilde (`~`) characters as shortcuts for `quote`, `quasiquote` and `unquote` respectively: You can use the single-quote (`'`), backtick and tilde (`~`) characters as shortcuts for `quote`, `quasiquote` and `unquote` respectively:
``` ```
> (def lst '(2 3)) > '(1 2 3)
(2 3) (1 2 3)
> `(1 ~lst 4)
(1 (2 3) 4) > `(5 ~(+ 2 4) 7)
(5 6 7)
``` ```
## Environments ## Environments