From c78557f3ca333d9ae925fdcb8a7c03199f5e47fd Mon Sep 17 00:00:00 2001
From: John MacFarlane <fiddlosopher@gmail.com>
Date: Sun, 8 Sep 2013 12:04:47 -0700
Subject: Templates:  more consistent behavior of `$for$`.

When `foo` is not a list, `$for(foo)$...$endfor$` should behave like
$if(foo)$...$endif$.  So if `foo` resolves to "", no output should
be produced.

See pandoc-templates#39.
---
 src/Text/Pandoc/Templates.hs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/Text/Pandoc/Templates.hs b/src/Text/Pandoc/Templates.hs
index 22a44e735..7f744c7e1 100644
--- a/src/Text/Pandoc/Templates.hs
+++ b/src/Text/Pandoc/Templates.hs
@@ -212,7 +212,7 @@ iter var' template sep = Template $ \val -> unTemplate
            Just (Array vec) -> mconcat $ intersperse sep
                                        $ map (setVar template var')
                                        $ toList vec
-           Just x           -> setVar template var' x
+           Just x           -> cond var' (setVar template var' x) mempty
            Nothing          -> mempty) val
 
 setVar :: Template -> Variable -> Value -> Template
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