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authorChristopher Lenz <cmlenz@apache.org>2008-05-22 20:30:57 +0000
committerChristopher Lenz <cmlenz@apache.org>2008-05-22 20:30:57 +0000
commit10c68254aac8647c7bcf2a3d8f9523658eb828f7 (patch)
treea658b2b8959d523eeae70ab07f8fd0a4b412dfb8 /src/mochiweb/mochifmt_records.erl
parent3a08b41f8c2a97eee0904b6359e559ed76dfc9fd (diff)
Updated MochiWeb in trunk to r73.
git-svn-id: https://svn.apache.org/repos/asf/incubator/couchdb/trunk@659244 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'src/mochiweb/mochifmt_records.erl')
-rw-r--r--src/mochiweb/mochifmt_records.erl30
1 files changed, 30 insertions, 0 deletions
diff --git a/src/mochiweb/mochifmt_records.erl b/src/mochiweb/mochifmt_records.erl
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+++ b/src/mochiweb/mochifmt_records.erl
@@ -0,0 +1,30 @@
+%% @author Bob Ippolito <bob@mochimedia.com>
+%% @copyright 2008 Mochi Media, Inc.
+
+%% @doc Formatter that understands records.
+%%
+%% Usage:
+%%
+%% 1> M = mochifmt_records:new([{rec, record_info(fields, rec)}]),
+%% M:format("{0.bar}", [#rec{bar=foo}]).
+%% foo
+
+-module(mochifmt_records, [Recs]).
+-author('bob@mochimedia.com').
+-export([get_value/2]).
+
+get_value(Key, Rec) when is_tuple(Rec) and is_atom(element(1, Rec)) ->
+ try begin
+ Atom = list_to_existing_atom(Key),
+ {_, Fields} = proplists:lookup(element(1, Rec), Recs),
+ element(get_rec_index(Atom, Fields, 2), Rec)
+ end
+ catch error:_ -> mochifmt:get_value(Key, Rec)
+ end;
+get_value(Key, Args) ->
+ mochifmt:get_value(Key, Args).
+
+get_rec_index(Atom, [Atom | _], Index) ->
+ Index;
+get_rec_index(Atom, [_ | Rest], Index) ->
+ get_rec_index(Atom, Rest, 1 + Index).