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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Text.Hastache.Context</title><link href="ocean.css" rel="stylesheet" type="text/css" title="Ocean" /><script src="haddock-util.js" type="text/javascript"></script><script type="text/javascript">//<![CDATA[
window.onload = function () {pageLoad();setSynopsis("mini_Text-Hastache-Context.html");};
//]]>
</script></head><body><div id="package-header"><ul class="links" id="page-menu"><li><a href="src/Text-Hastache-Context.html">Source</a></li><li><a href="index.html">Contents</a></li><li><a href="doc-index.html">Index</a></li></ul><p class="caption">hastache-0.3.3: Haskell implementation of Mustache templates</p></div><div id="content"><div id="module-header"><table class="info"><tr><th>Safe Haskell</th><td>None</td></tr></table><p class="caption">Text.Hastache.Context</p></div><div id="description"><p class="caption">Description</p><div class="doc"><p>Hastache context helpers
</p></div></div><div id="synopsis"><p id="control.syn" class="caption expander" onclick="toggleSection('syn')">Synopsis</p><ul id="section.syn" class="hide" onclick="toggleSection('syn')"><li class="src short"><a href="#v:mkStrContext">mkStrContext</a> :: <a href="/usr/share/doc/ghc-doc/html/libraries/base-4.6.0.1/Control-Monad.html#t:Monad">Monad</a> m =&gt; (<a href="/usr/share/doc/ghc-doc/html/libraries/base-4.6.0.1/Data-String.html#t:String">String</a> -&gt; <a href="Text-Hastache.html#t:MuType">MuType</a> m) -&gt; <a href="Text-Hastache.html#t:MuContext">MuContext</a> m</li><li class="src short"><a href="#v:mkGenericContext">mkGenericContext</a> :: (<a href="/usr/share/doc/ghc-doc/html/libraries/base-4.6.0.1/Control-Monad.html#t:Monad">Monad</a> m, <a href="/usr/share/doc/ghc-doc/html/libraries/base-4.6.0.1/Data-Data.html#t:Data">Data</a> a, <a href="/usr/share/doc/ghc-doc/html/libraries/base-4.6.0.1/Data-Typeable-Internal.html#t:Typeable1">Typeable1</a> m) =&gt; a -&gt; <a href="Text-Hastache.html#t:MuContext">MuContext</a> m</li></ul></div><div id="interface"><h1>Documentation</h1><div class="top"><p class="src"><a name="v:mkStrContext" class="def">mkStrContext</a> :: <a href="/usr/share/doc/ghc-doc/html/libraries/base-4.6.0.1/Control-Monad.html#t:Monad">Monad</a> m =&gt; (<a href="/usr/share/doc/ghc-doc/html/libraries/base-4.6.0.1/Data-String.html#t:String">String</a> -&gt; <a href="Text-Hastache.html#t:MuType">MuType</a> m) -&gt; <a href="Text-Hastache.html#t:MuContext">MuContext</a> m<a href="src/Text-Hastache-Context.html#mkStrContext" class="link">Source</a></p><div class="doc"><p>Make Hastache context from String -&gt; MuType function
</p></div></div><div class="top"><p class="src"><a name="v:mkGenericContext" class="def">mkGenericContext</a> :: (<a href="/usr/share/doc/ghc-doc/html/libraries/base-4.6.0.1/Control-Monad.html#t:Monad">Monad</a> m, <a href="/usr/share/doc/ghc-doc/html/libraries/base-4.6.0.1/Data-Data.html#t:Data">Data</a> a, <a href="/usr/share/doc/ghc-doc/html/libraries/base-4.6.0.1/Data-Typeable-Internal.html#t:Typeable1">Typeable1</a> m) =&gt; a -&gt; <a href="Text-Hastache.html#t:MuContext">MuContext</a> m<a href="src/Text-Hastache-Context.html#mkGenericContext" class="link">Source</a></p><div class="doc"><p>Make Hastache context from Data.Data deriving type
</p><p>Supported field types:
</p><ul><li> String
</li><li> Char
</li><li> Double
</li><li> Float
</li><li> Int
</li><li> Int8
</li><li> Int16
</li><li> Int32
</li><li> Int64
</li><li> Integer
</li><li> Word
</li><li> Word8
</li><li> Word16
</li><li> Word32
</li><li> Word64
</li><li> Data.ByteString.ByteString
</li><li> Data.ByteString.Lazy.ByteString
</li><li> Data.Text.Text
</li><li> Data.Text.Lazy.Text
</li><li> Bool
</li><li> Data.ByteString.ByteString -&gt; Data.ByteString.ByteString
</li><li> String -&gt; String
</li><li> Data.ByteString.ByteString -&gt; Data.ByteString.Lazy.ByteString
</li><li> MonadIO m =&gt; Data.ByteString.ByteString -&gt; m Data.ByteString.ByteString
</li><li> MonadIO m =&gt; String -&gt; m String
</li><li> MonadIO m =&gt; Data.ByteString.ByteString -&gt; m Data.ByteString.Lazy.ByteString
</li></ul><p>Example:
</p><pre>
import Text.Hastache 
import Text.Hastache.Context 
import qualified Data.ByteString as B
import qualified Data.ByteString.Lazy as LZ 
import Data.Data 
import Data.Generics 
import Data.Char

data InternalData = InternalData {
    someField       :: String,
    anotherField    :: Int
    } deriving (Data, Typeable, Show)

data Example = Example {
    stringField             :: String,
    intField                :: Int,
    dataField               :: InternalData,
    simpleListField         :: [String],
    dataListField           :: [InternalData],
    stringFunc              :: String -&gt; String,
    byteStringFunc          :: B.ByteString -&gt; B.ByteString,
    monadicStringFunc       :: String -&gt; IO String,
    monadicByteStringFunc   :: B.ByteString -&gt; IO B.ByteString
    } deriving (Data, Typeable)

example = hastacheStr defaultConfig (encodeStr template) 
    (mkGenericContext context)
    where
    template = concat $ map (++ &quot;\n&quot;) [
        &quot;string: {{stringField}}&quot;,
        &quot;int: {{intField}}&quot;,
        &quot;data: {{dataField.someField}}, {{dataField.anotherField}}&quot;,
        &quot;data: {{#dataField}}{{someField}}, {{anotherField}}{{/dataField}}&quot;,
        &quot;simple list: {{#simpleListField}}{{.}} {{/simpleListField}}&quot;,
        &quot;data list:&quot;,
        &quot;{{#dataListField}}&quot;,
        &quot; * {{someField}}, {{anotherField}}. top level var: {{intField}}&quot;,
        &quot;{{/dataListField}}&quot;,
        &quot;{{#stringFunc}}upper{{/stringFunc}}&quot;,
        &quot;{{#byteStringFunc}}reverse{{/byteStringFunc}}&quot;,
        &quot;{{#monadicStringFunc}}upper (monadic){{/monadicStringFunc}}&quot;,
        &quot;{{#monadicByteStringFunc}}reverse (monadic){{/monadicByteStringFunc}}&quot;]
    context = Example { stringField = &quot;string value&quot;, intField = 1, 
        dataField = InternalData &quot;val&quot; 123, simpleListField = [&quot;a&quot;,&quot;b&quot;,&quot;c&quot;],
        dataListField = [InternalData &quot;aaa&quot; 1, InternalData &quot;bbb&quot; 2],
        stringFunc = map toUpper,
        byteStringFunc = B.reverse,
        monadicStringFunc = return . map toUpper,
        monadicByteStringFunc = return . B.reverse }

main = example &gt;&gt;= LZ.putStrLn
</pre><p>Result:
</p><pre>
string: string value 
int: 1 
data: val, 123 
data: val, 123 
simple list: a b c  
data list: 
 * aaa, 1. top level var: 1 
 * bbb, 2. top level var: 1 
UPPER 
esrever 
UPPER (MONADIC)
)cidanom( esrever
</pre></div></div></div></div><div id="footer"><p>Produced by <a href="http://www.haskell.org/haddock/">Haddock</a> version 2.13.2</p></div></body></html>

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