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

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>Data.String.Utils</TITLE
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>MissingH-1.1.0.3: Large utility library</TD
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><A HREF="src/Data-String-Utils.html"
>Source code</A
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><FONT SIZE="6"
>Data.String.Utils</FONT
></TD
><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
></TABLE
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><TD CLASS="section4"
><B
>Contents</B
></TD
></TR
><TR
><TD
><DL
><DT
><A HREF="#1"
>Whitespace Removal
</A
></DT
><DT
><A HREF="#2"
>Tests
</A
></DT
><DT
><A HREF="#3"
>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 strings.
</P
><P
>Written by John Goerzen, jgoerzen@complete.org
</P
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section1"
>Synopsis</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="body"
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="decl"
><A HREF="#v%3Astrip"
>strip</A
> :: <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/base-4.2.0.2/Data-Char.html#t%3AString"
>String</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3Alstrip"
>lstrip</A
> :: <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/base-4.2.0.2/Data-Char.html#t%3AString"
>String</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3Arstrip"
>rstrip</A
> :: <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/base-4.2.0.2/Data-Char.html#t%3AString"
>String</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3Astartswith"
>startswith</A
> :: <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Eq.html#t%3AEq"
>Eq</A
> a =&gt; [a] -&gt; [a] -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Bool.html#t%3ABool"
>Bool</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3Aendswith"
>endswith</A
> :: <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Eq.html#t%3AEq"
>Eq</A
> a =&gt; [a] -&gt; [a] -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Bool.html#t%3ABool"
>Bool</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3Ajoin"
>join</A
> ::  [a] -&gt; [[a]] -&gt; [a]</TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3Asplit"
>split</A
> :: <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Eq.html#t%3AEq"
>Eq</A
> a =&gt; [a] -&gt; [a] -&gt; [[a]]</TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AsplitWs"
>splitWs</A
> :: <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/base-4.2.0.2/Data-Char.html#t%3AString"
>String</A
>]</TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3Areplace"
>replace</A
> :: <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Eq.html#t%3AEq"
>Eq</A
> a =&gt; [a] -&gt; [a] -&gt; [a] -&gt; [a]</TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AescapeRe"
>escapeRe</A
> :: <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/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"
>Whitespace Removal
</A
></A
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:strip"
><A NAME="v%3Astrip"
></A
></A
><B
>strip</B
> :: <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/base-4.2.0.2/Data-Char.html#t%3AString"
>String</A
></TD
><TD CLASS="declbut"
><A HREF="src/Data-String-Utils.html#strip"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
><P
>Removes any whitespace characters that are present at the start
or end of a string. Does not alter the internal contents of a
string. If no whitespace characters are present at the start or end
of a string, returns the original string unmodified. Safe to use on
any string.
</P
><P
>Note that this may differ from some other similar
functions from other authors in that:
</P
><P
>1. If multiple whitespace
characters are present all in a row, they are all removed;
</P
><P
>2. If no
whitespace characters are present, nothing is done.
</P
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:lstrip"
><A NAME="v%3Alstrip"
></A
></A
><B
>lstrip</B
> :: <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/base-4.2.0.2/Data-Char.html#t%3AString"
>String</A
></TD
><TD CLASS="declbut"
><A HREF="src/Data-String-Utils.html#lstrip"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
>Same as <TT
><A HREF="Data-String-Utils.html#v%3Astrip"
>strip</A
></TT
>, but applies only to the left side of the string.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:rstrip"
><A NAME="v%3Arstrip"
></A
></A
><B
>rstrip</B
> :: <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/base-4.2.0.2/Data-Char.html#t%3AString"
>String</A
></TD
><TD CLASS="declbut"
><A HREF="src/Data-String-Utils.html#rstrip"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
>Same as <TT
><A HREF="Data-String-Utils.html#v%3Astrip"
>strip</A
></TT
>, but applies only to the right side of the string.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section1"
><A NAME="2"
><A NAME="2"
>Tests
</A
></A
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="doc"
>Note: These functions are aliases for functions
 in <A HREF="Data-List-Utils.html"
>Data.List.Utils</A
>.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:startswith"
><A NAME="v%3Astartswith"
></A
></A
><B
>startswith</B
> :: <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Eq.html#t%3AEq"
>Eq</A
> a =&gt; [a] -&gt; [a] -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Bool.html#t%3ABool"
>Bool</A
></TD
><TD CLASS="declbut"
><A HREF="src/Data-List-Utils.html#startswith"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
><P
>Returns true if the given list starts with the specified elements;
false otherwise.  (This is an alias for <A HREF="Data-List-isPrefixOf.html"
>Data.List.isPrefixOf</A
>.)
</P
><P
>Example:
</P
><PRE
> startswith &quot;He&quot; &quot;Hello&quot; -&gt; True
</PRE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:endswith"
><A NAME="v%3Aendswith"
></A
></A
><B
>endswith</B
> :: <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Eq.html#t%3AEq"
>Eq</A
> a =&gt; [a] -&gt; [a] -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Bool.html#t%3ABool"
>Bool</A
></TD
><TD CLASS="declbut"
><A HREF="src/Data-List-Utils.html#endswith"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
><P
>Returns true if the given list ends with the specified elements;
false otherwise.  (This is an alias for <A HREF="Data-List-isSuffixOf.html"
>Data.List.isSuffixOf</A
>.)
</P
><P
>Example:
</P
><PRE
> endswith &quot;lo&quot; &quot;Hello&quot; -&gt; True
</PRE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section1"
><A NAME="3"
><A NAME="3"
>Conversions
</A
></A
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="doc"
>Note: Some of these functions are aliases for functions
 in <A HREF="Data-List-Utils.html"
>Data.List.Utils</A
>.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:join"
><A NAME="v%3Ajoin"
></A
></A
><B
>join</B
> ::  [a] -&gt; [[a]] -&gt; [a]</TD
><TD CLASS="declbut"
><A HREF="src/Data-List-Utils.html#join"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
><P
>Given a delimiter and a list of items (or strings), join the items
by using the delimiter.
</P
><P
>Example:
</P
><PRE
> join &quot;|&quot; [&quot;foo&quot;, &quot;bar&quot;, &quot;baz&quot;] -&gt; &quot;foo|bar|baz&quot;
</PRE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:split"
><A NAME="v%3Asplit"
></A
></A
><B
>split</B
> :: <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Eq.html#t%3AEq"
>Eq</A
> a =&gt; [a] -&gt; [a] -&gt; [[a]]</TD
><TD CLASS="declbut"
><A HREF="src/Data-List-Utils.html#split"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
><P
>Given a delimiter and a list (or string), split into components.
</P
><P
>Example:
</P
><PRE
> split &quot;,&quot; &quot;foo,bar,,baz,&quot; -&gt; [&quot;foo&quot;, &quot;bar&quot;, &quot;&quot;, &quot;baz&quot;, &quot;&quot;]
</PRE
><PRE
> split &quot;ba&quot; &quot;,foo,bar,,baz,&quot; -&gt; [&quot;,foo,&quot;,&quot;r,,&quot;,&quot;z,&quot;]
</PRE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:splitWs"
><A NAME="v%3AsplitWs"
></A
></A
><B
>splitWs</B
> :: <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/base-4.2.0.2/Data-Char.html#t%3AString"
>String</A
>]</TD
><TD CLASS="declbut"
><A HREF="src/Data-String-Utils.html#splitWs"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
>Splits a string around whitespace.  Empty elements in the result
list are automatically removed. 
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:replace"
><A NAME="v%3Areplace"
></A
></A
><B
>replace</B
> :: <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Eq.html#t%3AEq"
>Eq</A
> a =&gt; [a] -&gt; [a] -&gt; [a] -&gt; [a]</TD
><TD CLASS="declbut"
><A HREF="src/Data-List-Utils.html#replace"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
><P
>Given a list and a replacement list, replaces each occurance of the search
list with the replacement list in the operation list.
</P
><P
>Example:
</P
><PRE
>replace &quot;,&quot; &quot;.&quot; &quot;127,0,0,1&quot; -&gt; &quot;127.0.0.1&quot;
</PRE
><P
>This could logically be thought of as:
</P
><PRE
>replace old new l = join new . split old $ l
</PRE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:escapeRe"
><A NAME="v%3AescapeRe"
></A
></A
><B
>escapeRe</B
> :: <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/base-4.2.0.2/Data-Char.html#t%3AString"
>String</A
></TD
><TD CLASS="declbut"
><A HREF="src/Data-String-Utils.html#escapeRe"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
><P
>Escape all characters in the input pattern that are not alphanumeric.
</P
><P
>Does not make special allowances for NULL, which isn't valid in a
Haskell regular expression pattern. 
</P
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="botbar"
>Produced by <A HREF="http://www.haskell.org/haddock/"
>Haddock</A
> version 2.6.1</TD
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