Where is (re? x)
It looks like regular expressions are the only type with built-in
syntax that don't have a predicate function. How about:
(def
^{:arglists '([x])
:doc Return true if x is a regular expression
(java.util.regex.Pattern)
:added 1.3}
re? (fn re? [x] (instance? java.util.regex.Pattern x)))
Or maybe call it regexp? if re? isn't clear enough...
-Jeff
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Re: Where is (re? x)
Why use def? You could just place re? after the definition of defn,
and write it:
(defn re?
Return true if x is a regular expression
{:added 1.3}
[x]
(instance? java.util.regex.Pattern x))
- James
On 23 August 2010 16:17, Jeff Rose ros...@gmail.com wrote:
It looks like regular expressions are the only type with built-in
syntax that don't have a predicate function. How about:
(def
^{:arglists '([x])
:doc Return true if x is a regular expression
(java.util.regex.Pattern)
:added 1.3}
re? (fn re? [x] (instance? java.util.regex.Pattern x)))
Or maybe call it regexp? if re? isn't clear enough...
-Jeff
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Re: Where is (re? x)
Sure, I was just copying the style of the existing predicate functions
in core.clj to keep it consistent.
-Jeff
On Aug 23, 5:25 pm, James Reeves jree...@weavejester.com wrote:
Why use def? You could just place re? after the definition of defn,
and write it:
(defn re?
Return true if x is a regular expression
{:added 1.3}
[x]
(instance? java.util.regex.Pattern x))
- James
On 23 August 2010 16:17, Jeff Rose ros...@gmail.com wrote:
It looks like regular expressions are the only type with built-in
syntax that don't have a predicate function. How about:
(def
^{:arglists '([x])
:doc Return true if x is a regular expression
(java.util.regex.Pattern)
:added 1.3}
re? (fn re? [x] (instance? java.util.regex.Pattern x)))
Or maybe call it regexp? if re? isn't clear enough...
-Jeff
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Re: Where is (re? x)
Be very careful when copying the style of clojure.core. There are a
lot of non-standard practices in there, because Rich is bootstrapping
the language. For example, defn doesn't work like we're all used to
in core until about 80% of the way through.
Follow these style guidelines instead:
https://www.assembla.com/wiki/show/clojure/Clojure_Library_Coding_Standards
On Aug 23, 12:30 pm, Jeff Rose ros...@gmail.com wrote:
Sure, I was just copying the style of the existing predicate functions
in core.clj to keep it consistent.
-Jeff
On Aug 23, 5:25 pm, James Reeves jree...@weavejester.com wrote:
Why use def? You could just place re? after the definition of defn,
and write it:
(defn re?
Return true if x is a regular expression
{:added 1.3}
[x]
(instance? java.util.regex.Pattern x))
- James
On 23 August 2010 16:17, Jeff Rose ros...@gmail.com wrote:
It looks like regular expressions are the only type with built-in
syntax that don't have a predicate function. How about:
(def
^{:arglists '([x])
:doc Return true if x is a regular expression
(java.util.regex.Pattern)
:added 1.3}
re? (fn re? [x] (instance? java.util.regex.Pattern x)))
Or maybe call it regexp? if re? isn't clear enough...
-Jeff
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Re: Where is (re? x)
I think the re? definition might belong around line 447 of core with
the rest of the more normal looking
instance? functions.
On Mon, Aug 23, 2010 at 1:27 PM, Sean Devlin francoisdev...@gmail.com wrote:
Be very careful when copying the style of clojure.core. There are a
lot of non-standard practices in there, because Rich is bootstrapping
the language. For example, defn doesn't work like we're all used to
in core until about 80% of the way through.
Follow these style guidelines instead:
https://www.assembla.com/wiki/show/clojure/Clojure_Library_Coding_Standards
On Aug 23, 12:30 pm, Jeff Rose ros...@gmail.com wrote:
Sure, I was just copying the style of the existing predicate functions
in core.clj to keep it consistent.
-Jeff
On Aug 23, 5:25 pm, James Reeves jree...@weavejester.com wrote:
Why use def? You could just place re? after the definition of defn,
and write it:
(defn re?
Return true if x is a regular expression
{:added 1.3}
[x]
(instance? java.util.regex.Pattern x))
- James
On 23 August 2010 16:17, Jeff Rose ros...@gmail.com wrote:
It looks like regular expressions are the only type with built-in
syntax that don't have a predicate function. How about:
(def
^{:arglists '([x])
:doc Return true if x is a regular expression
(java.util.regex.Pattern)
:added 1.3}
re? (fn re? [x] (instance? java.util.regex.Pattern x)))
Or maybe call it regexp? if re? isn't clear enough...
-Jeff
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