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ghc-MissingH-devel-1.1.0.3-2.fc14.x86_64.rpm

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>Data.Map.Utils</TITLE
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>MissingH-1.1.0.3: Large utility library</TD
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><A HREF="src/Data-Map-Utils.html"
>Source code</A
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>Data.Map.Utils</FONT
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><TD ALIGN="right"
><TABLE CLASS="narrow" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="infohead"
>Portability</TD
><TD CLASS="infoval"
>portable</TD
></TR
><TR
><TD CLASS="infohead"
>Stability</TD
><TD CLASS="infoval"
>provisional</TD
></TR
><TR
><TD CLASS="infohead"
>Maintainer</TD
><TD CLASS="infoval"
>John Goerzen &lt;jgoerzen@complete.org&gt; </TD
></TR
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><TD CLASS="section4"
><B
>Contents</B
></TD
></TR
><TR
><TD
><DL
><DT
><A HREF="#1"
>Basic Utilities
</A
></DT
><DT
><A HREF="#2"
>Conversions
</A
></DT
></DL
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section1"
>Description</TD
></TR
><TR
><TD CLASS="doc"
><P
>This module provides various helpful utilities for dealing with Data.Maps.
</P
><P
>Written by John Goerzen, jgoerzen@complete.org
</P
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section1"
>Synopsis</TD
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></TD
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><TR
><TD CLASS="body"
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="decl"
><A HREF="#v%3AflipM"
>flipM</A
> :: (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Ord.html#t%3AOrd"
>Ord</A
> key, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Ord.html#t%3AOrd"
>Ord</A
> val) =&gt; <A HREF="/usr/share/doc/ghc/html/libraries/containers-0.3.0.0/Data-Map.html#t%3AMap"
>Map</A
> key val -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/containers-0.3.0.0/Data-Map.html#t%3AMap"
>Map</A
> val [key]</TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AflippedLookupM"
>flippedLookupM</A
> :: (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Ord.html#t%3AOrd"
>Ord</A
> val, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Ord.html#t%3AOrd"
>Ord</A
> key) =&gt; val -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/containers-0.3.0.0/Data-Map.html#t%3AMap"
>Map</A
> key val -&gt; [key]</TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AforceLookupM"
>forceLookupM</A
> :: (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Text-Show.html#t%3AShow"
>Show</A
> key, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Ord.html#t%3AOrd"
>Ord</A
> key) =&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Char.html#t%3AString"
>String</A
> -&gt; key -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/containers-0.3.0.0/Data-Map.html#t%3AMap"
>Map</A
> key elt -&gt; elt</TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AstrToM"
>strToM</A
> :: (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Text-Read.html#t%3ARead"
>Read</A
> a, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Text-Read.html#t%3ARead"
>Read</A
> b, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Ord.html#t%3AOrd"
>Ord</A
> a) =&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Char.html#t%3AString"
>String</A
> -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/containers-0.3.0.0/Data-Map.html#t%3AMap"
>Map</A
> a b</TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AstrFromM"
>strFromM</A
> :: (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Text-Show.html#t%3AShow"
>Show</A
> a, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Text-Show.html#t%3AShow"
>Show</A
> b, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Ord.html#t%3AOrd"
>Ord</A
> a) =&gt; <A HREF="/usr/share/doc/ghc/html/libraries/containers-0.3.0.0/Data-Map.html#t%3AMap"
>Map</A
> a b -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Char.html#t%3AString"
>String</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section1"
><A NAME="1"
><A NAME="1"
>Basic Utilities
</A
></A
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:flipM"
><A NAME="v%3AflipM"
></A
></A
><B
>flipM</B
> :: (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Ord.html#t%3AOrd"
>Ord</A
> key, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Ord.html#t%3AOrd"
>Ord</A
> val) =&gt; <A HREF="/usr/share/doc/ghc/html/libraries/containers-0.3.0.0/Data-Map.html#t%3AMap"
>Map</A
> key val -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/containers-0.3.0.0/Data-Map.html#t%3AMap"
>Map</A
> val [key]</TD
><TD CLASS="declbut"
><A HREF="src/Data-Map-Utils.html#flipM"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
>Flips a Map.  See <TT
><A HREF="Data-List-Utils.html#v%3AflipAL"
>flipAL</A
></TT
> for more on the similar
function for lists. 
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:flippedLookupM"
><A NAME="v%3AflippedLookupM"
></A
></A
><B
>flippedLookupM</B
> :: (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Ord.html#t%3AOrd"
>Ord</A
> val, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Ord.html#t%3AOrd"
>Ord</A
> key) =&gt; val -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/containers-0.3.0.0/Data-Map.html#t%3AMap"
>Map</A
> key val -&gt; [key]</TD
><TD CLASS="declbut"
><A HREF="src/Data-Map-Utils.html#flippedLookupM"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
>Returns a list of all keys in the Map whose value matches the
parameter. If the value does not occur in the Map, the empty
list is returned. 
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:forceLookupM"
><A NAME="v%3AforceLookupM"
></A
></A
><B
>forceLookupM</B
> :: (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Text-Show.html#t%3AShow"
>Show</A
> key, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Ord.html#t%3AOrd"
>Ord</A
> key) =&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Char.html#t%3AString"
>String</A
> -&gt; key -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/containers-0.3.0.0/Data-Map.html#t%3AMap"
>Map</A
> key elt -&gt; elt</TD
><TD CLASS="declbut"
><A HREF="src/Data-Map-Utils.html#forceLookupM"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
>Performs a lookup, and raises an exception (with an error message
prepended with the given string) if the key could not be found.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section1"
><A NAME="2"
><A NAME="2"
>Conversions
</A
></A
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:strToM"
><A NAME="v%3AstrToM"
></A
></A
><B
>strToM</B
> :: (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Text-Read.html#t%3ARead"
>Read</A
> a, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Text-Read.html#t%3ARead"
>Read</A
> b, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Ord.html#t%3AOrd"
>Ord</A
> a) =&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Char.html#t%3AString"
>String</A
> -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/containers-0.3.0.0/Data-Map.html#t%3AMap"
>Map</A
> a b</TD
><TD CLASS="declbut"
><A HREF="src/Data-Map-Utils.html#strToM"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
><P
>Converts a String into a String, String Map.  See
<TT
><A HREF="Data-List-Utils.html#v%3AstrToAL"
>strToAL</A
></TT
> for more on the similar function for association
lists.
</P
><P
>This implementation is simple:
</P
><PRE
>strToM = Data.Map.fromList . strToAL
</PRE
><P
>This function is designed to work with Map String String objects,
but may work with other key/value combinations if they have simple
representations.  
</P
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:strFromM"
><A NAME="v%3AstrFromM"
></A
></A
><B
>strFromM</B
> :: (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Text-Show.html#t%3AShow"
>Show</A
> a, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Text-Show.html#t%3AShow"
>Show</A
> b, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Ord.html#t%3AOrd"
>Ord</A
> a) =&gt; <A HREF="/usr/share/doc/ghc/html/libraries/containers-0.3.0.0/Data-Map.html#t%3AMap"
>Map</A
> a b -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Char.html#t%3AString"
>String</A
></TD
><TD CLASS="declbut"
><A HREF="src/Data-Map-Utils.html#strFromM"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
><P
>Converts a String, String Map into a string representation.
See <TT
><A HREF="Data-List-Utils.html#v%3AstrFromAL"
>strFromAL</A
></TT
> for more on the similar function for
association lists.  This implementation is simple:
</P
><PRE
>strFromM = strFromAL . Data.Map.toList
</PRE
><P
>This function is designed to work with Map String String objects,
but may also work with other objects with simple representations. 
</P
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
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>Produced by <A HREF="http://www.haskell.org/haddock/"
>Haddock</A
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