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Document new primops

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This commit is contained in:
Eelco Dolstra 2012-12-04 17:15:32 +01:00
parent 4387d19359
commit 094a08f839
1 changed files with 96 additions and 54 deletions
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42
doc/manual/builtins.xml
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@ -100,6 +100,15 @@ if builtins ? getEnv then builtins.getEnv "PATH" else ""</programlisting>
</varlistentry>
<varlistentry><term><function>builtins.concatLists</function>
<replaceable>lists</replaceable></term>
<listitem><para>Concatenate a list of lists into a single
list.</para></listitem>
</varlistentry>
<varlistentry
xml:id='builtin-currentSystem'><term><varname>builtins.currentSystem</varname></term>
@ -163,6 +172,39 @@ if builtins ? getEnv then builtins.getEnv "PATH" else ""</programlisting>
</varlistentry>
<varlistentry><term><function>builtins.elem</function>
<replaceable>x</replaceable> <replaceable>xs</replaceable></term>
<listitem><para>Return <literal>true</literal> if a value equal to
<replaceable>x</replaceable> occurs in the list
<replaceable>xs</replaceable>, and <literal>false</literal>
otherwise.</para></listitem>
</varlistentry>
<varlistentry><term><function>builtins.elemAt</function>
<replaceable>xs</replaceable> <replaceable>n</replaceable></term>
<listitem><para>Return element <replaceable>n</replaceable> from
the list <replaceable>xs</replaceable>. Elements are counted
starting from 0. A fatal error occurs in the index is out of
bounds.</para></listitem>
</varlistentry>
<varlistentry><term><function>builtins.filter</function>
<replaceable>f</replaceable> <replaceable>xs</replaceable></term>
<listitem><para>Return a list consisting of the elements of
<replaceable>xs</replaceable> for which the function
<replaceable>f</replaceable> returns
<literal>true</literal>.</para></listitem>
</varlistentry>
<varlistentry><term><function>builtins.filterSource</function>
<replaceable>e1</replaceable> <replaceable>e2</replaceable></term>