[ANN] A pre-release of the Scribble syntax in Clojure
Hello all, There was a thread a while ago with me asking about the ways to modify the S-expression syntax in Clojure as it's done in Scribblehttp://docs.racket-lang.org/scribble/reader.html. Long story short, I'm happy to announce a working (well, to my current knowledge) implementation: on clojars https://clojars.org/scribble, or on github https://github.com/Manticore/clojure-scribble. The readme file on github contains some usage instructions, and the list of differences from the original Scribble syntax (with explanations). The current version is a snapshot, since I depend on a snapshot version of chiarahttps://clojars.org/chiara. I'll update the version as soon as chiara is released. I've made this for my own purposes, but perhaps it may be useful to other people as a generalized template engine. Anyway, it is my first Clojure project, so I'll be grateful for any comments, or even pull requests. P.S. Given the current list of differences from the original Scribble syntax, and the fact that the original Scribble is actually a syntax + a documentation generation system, I do not insist on keeping the name. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
A library function for the repeated application of a lambda with values from a sequence
Hello, Consider the following problem: (def v [1 2 3]) (def l '(4 5 6)) ; we need to apply in sequence ; `v - (func v e)`, ; where `e` goes over elements of the list `l` (def new-v (apply-from-list func v l)) For example, if `(def func conj)`, then the value of `new-v` is `[1 2 3 4 5 6]`. Is there some function (or a simple combination of functions) from the standard library that does that? It seems to me that it could be done with something like `-`, but a function, not a macro. At the moment I have the following ugly implementation: (defn apply-from-list [init-res func init-l] (if (empty? init-l) init-res (loop [res init-res l init-l] (let [first-elem (first l) rest-elems (rest l) res (func res first-elem)] (if (empty? rest-elems) res (recur res rest-elems)) -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: A library function for the repeated application of a lambda with values from a sequence
Hi Cedric, Thanks, I'm feeling really silly now... I should have thought about folds the first second after encountering this :) -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Implementing a Scribble-like preprocessor for Clojure
For what it's worth, I've finished a draft implementation using reader API utilities from Clarity https://github.com/one-more-minute/clarity. The result can be seen on github https://github.com/Manticore/clojure-scribble, the example of syntax in testshttps://github.com/Manticore/clojure-scribble/blob/master/test/scribble/core_test.clj. This is my first ever Clojure project, so I'll gladly accept any comments (or push requests). I'm planning to push it on clojars when it's cleaned up, and the uncertainties in syntax are dealt with. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Implementing a Scribble-like preprocessor for Clojure
Hi Jeremy,
Thank you for your suggestion, it's worth a try. It seems though that it
might not be suitable for my more distant plans for this project, because:
1) The full Scribble syntax is not context-free: multiline text mode has to
remember the starting indentation (although I'm not sure if this feature is
necessary);
2) It would be very convenient to be able to write this pseudo-Scribble
code with the full use of REPL, autocompletion etc (for example, in
LightTable), and it requires a custom reader, and not just a separate
parser.
On Saturday, August 24, 2013 7:18:40 PM UTC+10, JeremyS wrote:
Hi Bogdan,
That's a cool Idea ! I'm wondering if you wouldn't be better off with
something like Instaparse https://github.com/Engelberg/instaparse.
Cheers,
Jeremys.
On Friday, August 23, 2013 3:37:53 PM UTC+2, Bogdan Opanchuk wrote:
Hi all,
For those who are not familiar with Scribble, it is basically a
preprocessor for Racket (a dialect of Lisp) which makes its syntax more
concise when working with lots of text, effectively turning it into a
template engine (see http://docs.racket-lang.org/scribble/reader.htmlfor
details). TLDR: a very small subset of Scribble would transform
@func{text text @other-func{more text} final words.}
to
(func text text (other-func more text) final words.)
I would like to implement it in Clojure as a learning project (say, the
simple subset of it shown above, for a start). My question is, what should
I use? Let's say for simplicity that the entry point is some function
(load-file-scribble filename.scribble) that returns Clojure code same as
(load-file filename.clj) does. As far as my general understanding of
programming languages goes, I have to:
1. extend the tokenizer to support additional syntax;
2. extend the parser (?) to convert the new tokens into corresponding
Clojure tokens;
3. feed the result to the Clojure parser
(although I might be completely wrong).
There is the ``tools.reader`` module, which seems more or less suitable,
but I cannot find the hooks that would allow me to extend its functionality
in the required way. Is it the right tool, or should I look some other way?
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Implementing a Scribble-like preprocessor for Clojure
Hi all,
For those who are not familiar with Scribble, it is basically a
preprocessor for Racket (a dialect of Lisp) which makes its syntax more
concise when working with lots of text, effectively turning it into a
template engine (see http://docs.racket-lang.org/scribble/reader.html for
details). TLDR: a very small subset of Scribble would transform
@func{text text @other-func{more text} final words.}
to
(func text text (other-func more text) final words.)
I would like to implement it in Clojure as a learning project (say, the
simple subset of it shown above, for a start). My question is, what should
I use? Let's say for simplicity that the entry point is some function
(load-file-scribble filename.scribble) that returns Clojure code same as
(load-file filename.clj) does. As far as my general understanding of
programming languages goes, I have to:
1. extend the tokenizer to support additional syntax;
2. extend the parser (?) to convert the new tokens into corresponding
Clojure tokens;
3. feed the result to the Clojure parser
(although I might be completely wrong).
There is the ``tools.reader`` module, which seems more or less suitable,
but I cannot find the hooks that would allow me to extend its functionality
in the required way. Is it the right tool, or should I look some other way?
--
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