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add functions: contains, index_of, last_index_of

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Gered 2014-06-14 22:02:48 -04:00
parent bed886b5ad
commit 326b1eef7a
1 changed files with 21 additions and 0 deletions
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21
src/clj_jtwig/standard_functions.clj
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@ -29,6 +29,13 @@
{:fn (fn [s size & [padding-string]]
(StringUtils/center s size (or padding-string " ")))}
"contains"
{:fn (fn [coll value]
(if (map? coll)
(contains? coll value)
; explicit use of '=' to allow testing for falsey values
(some #(= value %) coll)))}
"dump"
{:fn (fn [x]
(with-out-str
@ -39,6 +46,20 @@
(with-out-str
(clojure.pprint/print-table x)))}
"index_of"
{:fn (fn [coll value]
(cond
(instance? java.util.List coll) (.indexOf coll value)
(string? coll) (.indexOf coll value)
:else (throw (new Exception (str "'index_if' passed invalid collection type: " (type coll))))))}
"last_index_of"
{:fn (fn [coll value]
(cond
(instance? java.util.List coll) (.lastIndexOf coll value)
(string? coll) (.lastIndexOf coll value)
:else (throw (new Exception (str "'last_index_if' passed invalid collection type: " (type coll))))))}
"max"
{:fn (fn [& numbers]
(if (coll? (first numbers))