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authorStuart Sierra <mail@stuartsierra.com>2010-08-07 16:41:53 -0400
committerStuart Sierra <mail@stuartsierra.com>2010-08-07 16:41:53 -0400
commita6a92b9b3d2bfd9a56e1e5e9cfba706d1aeeaae5 (patch)
treef1f3da9887dc2dc557df3282b0bcbd4d701ec593 /modules/core/src
parente7930c85290f77815cdb00a60604feedfa2d0194 (diff)
Split all namespaces into sub-modules.
* Examples and tests have not been copied over. * Clojure test/compile phases are commented out in parent POM. * May require installing parent POM before full build.
Diffstat (limited to 'modules/core/src')
-rw-r--r--modules/core/src/main/clojure/clojure/contrib/core.clj89
1 files changed, 89 insertions, 0 deletions
diff --git a/modules/core/src/main/clojure/clojure/contrib/core.clj b/modules/core/src/main/clojure/clojure/contrib/core.clj
new file mode 100644
index 00000000..e7239717
--- /dev/null
+++ b/modules/core/src/main/clojure/clojure/contrib/core.clj
@@ -0,0 +1,89 @@
+; Copyright (c) Laurent Petit and others, March 2009. All rights reserved.
+
+; The use and distribution terms for this software are covered by the
+; Eclipse Public License 1.0 (http://opensource.org/licenses/eclipse-1.0.php)
+; which can be found in the file epl-v10.html at the root of this
+; distribution.
+; By using this software in any fashion, you are agreeing to be bound by
+; the terms of this license.
+; You must not remove this notice, or any other, from this software.
+
+;; functions/macros variants of the ones that can be found in clojure.core
+
+;; note to other contrib members: feel free to add to this lib
+
+(ns
+ ^{:author "Laurent Petit (and others)"
+ :doc "Functions/macros variants of the ones that can be found in clojure.core
+ (note to other contrib members: feel free to add to this lib)"}
+ clojure.contrib.core
+ (:use clojure.contrib.def))
+
+(defmacro- defnilsafe [docstring non-safe-name nil-safe-name]
+ `(defmacro ~nil-safe-name ~docstring
+ {:arglists '([~'x ~'form] [~'x ~'form ~'& ~'forms])}
+ ([x# form#]
+ `(let [~'i# ~x#] (when-not (nil? ~'i#) (~'~non-safe-name ~'i# ~form#))))
+ ([x# form# & more#]
+ `(~'~nil-safe-name (~'~nil-safe-name ~x# ~form#) ~@more#))))
+
+(defnilsafe
+ "Same as clojure.core/-> but returns nil as soon as the threaded value is nil itself (thus short-circuiting any pending computation).
+ Examples :
+ (-?> \"foo\" .toUpperCase (.substring 1)) returns \"OO\"
+ (-?> nil .toUpperCase (.substring 1)) returns nil
+ "
+ -> -?>)
+
+(defnilsafe
+ "Same as clojure.core/.. but returns nil as soon as the threaded value is nil itself (thus short-circuiting any pending computation).
+ Examples :
+ (.?. \"foo\" .toUpperCase (.substring 1)) returns \"OO\"
+ (.?. nil .toUpperCase (.substring 1)) returns nil
+ "
+ .. .?.)
+
+(defnilsafe
+ "Same as clojure.core/->> but returns nil as soon as the threaded value is nil itself (thus short-circuiting any pending computation).
+ Examples :
+ (-?>> (range 5) (map inc)) returns (1 2 3 4 5)
+ (-?>> [] seq (map inc)) returns nil
+ "
+ ->> -?>>)
+
+;; ----------------------------------------------------------------------
+;; scgilardi at gmail
+
+(defn dissoc-in
+ "Dissociates an entry from a nested associative structure returning a new
+ nested structure. keys is a sequence of keys. Any empty maps that result
+ will not be present in the new structure."
+ [m [k & ks :as keys]]
+ (if ks
+ (if-let [nextmap (get m k)]
+ (let [newmap (dissoc-in nextmap ks)]
+ (if (seq newmap)
+ (assoc m k newmap)
+ (dissoc m k)))
+ m)
+ (dissoc m k)))
+
+(defn new-by-name
+ "Constructs a Java object whose class is specified by a String."
+ [class-name & args]
+ (clojure.lang.Reflector/invokeConstructor
+ (clojure.lang.RT/classForName class-name)
+ (into-array Object args)))
+
+(defn seqable?
+ "Returns true if (seq x) will succeed, false otherwise."
+ [x]
+ (or (seq? x)
+ (instance? clojure.lang.Seqable x)
+ (nil? x)
+ (instance? Iterable x)
+ (-> x .getClass .isArray)
+ (string? x)
+ (instance? java.util.Map x)))
+
+;; ----------------------------------------------------------------------