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<a name="appstream-AsMetadata"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
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<h2><span class="refentrytitle"><a name="appstream-AsMetadata.top_of_page"></a>AsMetadata</span></h2>
<p>AsMetadata — Parser for AppStream metadata</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="appstream-AsMetadata.functions"></a><h2>Functions</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">const <a href="../glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-format-kind-to-string" title="as_format_kind_to_string ()">as_format_kind_to_string</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="appstream-AsMetadata.html#AsFormatKind" title="enum AsFormatKind"><span class="returnvalue">AsFormatKind</span></a>
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-format-kind-from-string" title="as_format_kind_from_string ()">as_format_kind_from_string</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">const <a href="../glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-format-version-to-string" title="as_format_version_to_string ()">as_format_version_to_string</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="appstream-AsMetadata.html#AsFormatVersion" title="enum AsFormatVersion"><span class="returnvalue">AsFormatVersion</span></a>
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-format-version-from-string" title="as_format_version_from_string ()">as_format_version_from_string</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="returnvalue">AsMetadata</span></a> *
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-metadata-new" title="as_metadata_new ()">as_metadata_new</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="../glib/glib-Quarks.html#GQuark"><span class="returnvalue">GQuark</span></a>
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-metadata-error-quark" title="as_metadata_error_quark ()">as_metadata_error_quark</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-metadata-parse-file" title="as_metadata_parse_file ()">as_metadata_parse_file</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-metadata-parse" title="as_metadata_parse ()">as_metadata_parse</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-metadata-parse-desktop-data" title="as_metadata_parse_desktop_data ()">as_metadata_parse_desktop_data</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="appstream-AsComponent.html#AsComponent" title="AsComponent"><span class="returnvalue">AsComponent</span></a> *
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-metadata-get-component" title="as_metadata_get_component ()">as_metadata_get_component</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="../glib/glib-Pointer-Arrays.html#GPtrArray"><span class="returnvalue">GPtrArray</span></a> *
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-metadata-get-components" title="as_metadata_get_components ()">as_metadata_get_components</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-metadata-clear-components" title="as_metadata_clear_components ()">as_metadata_clear_components</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-metadata-add-component" title="as_metadata_add_component ()">as_metadata_add_component</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="../glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-metadata-component-to-metainfo" title="as_metadata_component_to_metainfo ()">as_metadata_component_to_metainfo</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-metadata-save-metainfo" title="as_metadata_save_metainfo ()">as_metadata_save_metainfo</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="../glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-metadata-components-to-collection" title="as_metadata_components_to_collection ()">as_metadata_components_to_collection</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-metadata-save-collection" title="as_metadata_save_collection ()">as_metadata_save_collection</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="appstream-AsMetadata.html#AsFormatVersion" title="enum AsFormatVersion"><span class="returnvalue">AsFormatVersion</span></a>
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-metadata-get-format-version" title="as_metadata_get_format_version ()">as_metadata_get_format_version</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-metadata-set-format-version" title="as_metadata_set_format_version ()">as_metadata_set_format_version</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="appstream-AsMetadata.html#AsFormatStyle" title="enum AsFormatStyle"><span class="returnvalue">AsFormatStyle</span></a>
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-metadata-get-format-style" title="as_metadata_get_format_style ()">as_metadata_get_format_style</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-metadata-set-format-style" title="as_metadata_set_format_style ()">as_metadata_set_format_style</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-metadata-set-locale" title="as_metadata_set_locale ()">as_metadata_set_locale</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">const <a href="../glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-metadata-get-locale" title="as_metadata_get_locale ()">as_metadata_get_locale</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">const <a href="../glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-metadata-get-origin" title="as_metadata_get_origin ()">as_metadata_get_origin</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-metadata-set-origin" title="as_metadata_set_origin ()">as_metadata_set_origin</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="../glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-metadata-get-update-existing" title="as_metadata_get_update_existing ()">as_metadata_get_update_existing</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-metadata-set-update-existing" title="as_metadata_set_update_existing ()">as_metadata_set_update_existing</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="../glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-metadata-get-write-header" title="as_metadata_get_write_header ()">as_metadata_get_write_header</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-metadata-set-write-header" title="as_metadata_set_write_header ()">as_metadata_set_write_header</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">const <a href="../glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-metadata-get-architecture" title="as_metadata_get_architecture ()">as_metadata_get_architecture</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="appstream-AsMetadata.html#as-metadata-set-architecture" title="as_metadata_set_architecture ()">as_metadata_set_architecture</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="appstream-AsMetadata.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="appstream-AsMetadata.html#AS-TYPE-METADATA:CAPS" title="AS_TYPE_METADATA">AS_TYPE_METADATA</a></td>
</tr>
<tr>
<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="appstream-AsMetadata.html#AsMetadataClass" title="struct AsMetadataClass">AsMetadataClass</a></td>
</tr>
<tr>
<td class="datatype_keyword">enum</td>
<td class="function_name"><a class="link" href="appstream-AsMetadata.html#AsFormatStyle" title="enum AsFormatStyle">AsFormatStyle</a></td>
</tr>
<tr>
<td class="datatype_keyword">enum</td>
<td class="function_name"><a class="link" href="appstream-AsMetadata.html#AsFormatKind" title="enum AsFormatKind">AsFormatKind</a></td>
</tr>
<tr>
<td class="datatype_keyword">enum</td>
<td class="function_name"><a class="link" href="appstream-AsMetadata.html#AsFormatVersion" title="enum AsFormatVersion">AsFormatVersion</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="appstream-AsMetadata.html#AS-CURRENT-FORMAT-VERSION:CAPS" title="AS_CURRENT_FORMAT_VERSION">AS_CURRENT_FORMAT_VERSION</a></td>
</tr>
<tr>
<td class="datatype_keyword">enum</td>
<td class="function_name"><a class="link" href="appstream-AsMetadata.html#AsMetadataError" title="enum AsMetadataError">AsMetadataError</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="appstream-AsMetadata.html#AS-METADATA-ERROR:CAPS" title="AS_METADATA_ERROR">AS_METADATA_ERROR</a></td>
</tr>
<tr>
<td class="datatype_keyword"> </td>
<td class="function_name"><a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata">AsMetadata</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="appstream-AsMetadata.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include <appstream.h>
</pre>
</div>
<div class="refsect1">
<a name="appstream-AsMetadata.description"></a><h2>Description</h2>
<p>This object parses AppStream metadata, including AppStream
upstream metadata, which is defined by upstream projects.
It returns an <a class="link" href="appstream-AsComponent.html#AsComponent" title="AsComponent"><span class="type">AsComponent</span></a> of the data.</p>
<p>See also: <a class="link" href="appstream-AsComponent.html#AsComponent" title="AsComponent"><span class="type">AsComponent</span></a>, <span class="type">AsDatabase</span></p>
</div>
<div class="refsect1">
<a name="appstream-AsMetadata.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="as-format-kind-to-string"></a><h3>as_format_kind_to_string ()</h3>
<pre class="programlisting">const <a href="../glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
as_format_kind_to_string (<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsFormatKind" title="enum AsFormatKind"><span class="type">AsFormatKind</span></a> kind</code></em>);</pre>
<p>Converts the enumerated value to an text representation.</p>
<div class="refsect3">
<a name="as-format-kind-to-string.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>kind</p></td>
<td class="parameter_description"><p>the <a class="link" href="appstream-AsMetadata.html#AsFormatKind" title="enum AsFormatKind"><span class="type">AsFormatKind</span></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="as-format-kind-to-string.returns"></a><h4>Returns</h4>
<p> string version of <em class="parameter"><code>kind</code></em>
</p>
</div>
<p class="since">Since: 0.10</p>
</div>
<hr>
<div class="refsect2">
<a name="as-format-kind-from-string"></a><h3>as_format_kind_from_string ()</h3>
<pre class="programlisting"><a class="link" href="appstream-AsMetadata.html#AsFormatKind" title="enum AsFormatKind"><span class="returnvalue">AsFormatKind</span></a>
as_format_kind_from_string (<em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *kind_str</code></em>);</pre>
<p>Converts the text representation to an enumerated value.</p>
<div class="refsect3">
<a name="as-format-kind-from-string.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>kind_str</p></td>
<td class="parameter_description"><p>the string.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="as-format-kind-from-string.returns"></a><h4>Returns</h4>
<p> a <a class="link" href="appstream-AsMetadata.html#AsFormatKind" title="enum AsFormatKind"><span class="type">AsFormatKind</span></a> or <a class="link" href="appstream-AsMetadata.html#AS-FORMAT-KIND-UNKNOWN:CAPS"><code class="literal">AS_FORMAT_KIND_UNKNOWN</code></a> for unknown</p>
</div>
<p class="since">Since: 0.10</p>
</div>
<hr>
<div class="refsect2">
<a name="as-format-version-to-string"></a><h3>as_format_version_to_string ()</h3>
<pre class="programlisting">const <a href="../glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
as_format_version_to_string (<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsFormatVersion" title="enum AsFormatVersion"><span class="type">AsFormatVersion</span></a> version</code></em>);</pre>
<p>Converts the enumerated value to an text representation.</p>
<div class="refsect3">
<a name="as-format-version-to-string.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>version</p></td>
<td class="parameter_description"><p>the <a class="link" href="appstream-AsMetadata.html#AsFormatKind" title="enum AsFormatKind"><span class="type">AsFormatKind</span></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="as-format-version-to-string.returns"></a><h4>Returns</h4>
<p> string version of <em class="parameter"><code>version</code></em>
</p>
</div>
<p class="since">Since: 0.10</p>
</div>
<hr>
<div class="refsect2">
<a name="as-format-version-from-string"></a><h3>as_format_version_from_string ()</h3>
<pre class="programlisting"><a class="link" href="appstream-AsMetadata.html#AsFormatVersion" title="enum AsFormatVersion"><span class="returnvalue">AsFormatVersion</span></a>
as_format_version_from_string (<em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *version_str</code></em>);</pre>
<p>Converts the text representation to an enumerated value.</p>
<div class="refsect3">
<a name="as-format-version-from-string.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>version_str</p></td>
<td class="parameter_description"><p>the string.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="as-format-version-from-string.returns"></a><h4>Returns</h4>
<p> a <a class="link" href="appstream-AsMetadata.html#AsFormatVersion" title="enum AsFormatVersion"><span class="type">AsFormatVersion</span></a>. For unknown, the highest version
number is assumed.</p>
</div>
<p class="since">Since: 0.10</p>
</div>
<hr>
<div class="refsect2">
<a name="as-metadata-new"></a><h3>as_metadata_new ()</h3>
<pre class="programlisting"><a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="returnvalue">AsMetadata</span></a> *
as_metadata_new (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Creates a new <a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a>.</p>
<div class="refsect3">
<a name="as-metadata-new.returns"></a><h4>Returns</h4>
<p> a <a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a>. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="as-metadata-error-quark"></a><h3>as_metadata_error_quark ()</h3>
<pre class="programlisting"><a href="../glib/glib-Quarks.html#GQuark"><span class="returnvalue">GQuark</span></a>
as_metadata_error_quark (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<div class="refsect3">
<a name="as-metadata-error-quark.returns"></a><h4>Returns</h4>
<p> An error quark.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="as-metadata-parse-file"></a><h3>as_metadata_parse_file ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
as_metadata_parse_file (<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> *metad</code></em>,
<em class="parameter"><code><a href="../gio/GFile.html#GFile-struct"><span class="type">GFile</span></a> *file</code></em>,
<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsFormatKind" title="enum AsFormatKind"><span class="type">AsFormatKind</span></a> format</code></em>,
<em class="parameter"><code><a href="../glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);</pre>
<p>Parses an AppStream upstream metadata file.</p>
<div class="refsect3">
<a name="as-metadata-parse-file.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>metad</p></td>
<td class="parameter_description"><p>A valid <a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> instance</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>file</p></td>
<td class="parameter_description"><p><a href="../gio/GFile.html#GFile-struct"><span class="type">GFile</span></a> for the upstream metadata</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>format</p></td>
<td class="parameter_description"><p>The format the data is in, or <a class="link" href="appstream-AsMetadata.html#AS-FORMAT-KIND-UNKNOWN:CAPS"><code class="literal">AS_FORMAT_KIND_UNKNOWN</code></a> if not known.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>error</p></td>
<td class="parameter_description"><p>A <a href="../glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> or <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="as-metadata-parse"></a><h3>as_metadata_parse ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
as_metadata_parse (<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> *metad</code></em>,
<em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *data</code></em>,
<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsFormatKind" title="enum AsFormatKind"><span class="type">AsFormatKind</span></a> format</code></em>,
<em class="parameter"><code><a href="../glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);</pre>
<p>Parses AppStream metadata.</p>
<div class="refsect3">
<a name="as-metadata-parse.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>metad</p></td>
<td class="parameter_description"><p>An instance of <a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>data</p></td>
<td class="parameter_description"><p>Metadata describing one or more software components.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>format</p></td>
<td class="parameter_description"><p>The format of the data (XML or YAML).</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>error</p></td>
<td class="parameter_description"><p>A <a href="../glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> or <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="as-metadata-parse-desktop-data"></a><h3>as_metadata_parse_desktop_data ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
as_metadata_parse_desktop_data (<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> *metad</code></em>,
<em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *data</code></em>,
<em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *cid</code></em>,
<em class="parameter"><code><a href="../glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);</pre>
<p>Parses XDG Desktop Entry metadata and adds it to the pool.</p>
<div class="refsect3">
<a name="as-metadata-parse-desktop-data.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>metad</p></td>
<td class="parameter_description"><p>An instance of <a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>data</p></td>
<td class="parameter_description"><p>Metadata describing one or more software components.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>cid</p></td>
<td class="parameter_description"><p>The component-id the new <a class="link" href="appstream-AsComponent.html#AsComponent" title="AsComponent"><span class="type">AsComponent</span></a> should have.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>error</p></td>
<td class="parameter_description"><p>A <a href="../glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> or <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="as-metadata-get-component"></a><h3>as_metadata_get_component ()</h3>
<pre class="programlisting"><a class="link" href="appstream-AsComponent.html#AsComponent" title="AsComponent"><span class="returnvalue">AsComponent</span></a> *
as_metadata_get_component (<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> *metad</code></em>);</pre>
<p>Gets the <a class="link" href="appstream-AsComponent.html#AsComponent" title="AsComponent"><span class="type">AsComponent</span></a> which has been parsed from the XML.
If the AppStream XML contained multiple components, return the first
component that has been parsed.</p>
<div class="refsect3">
<a name="as-metadata-get-component.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>metad</p></td>
<td class="parameter_description"><p>a <a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> instance.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="as-metadata-get-component.returns"></a><h4>Returns</h4>
<p> An <a class="link" href="appstream-AsComponent.html#AsComponent" title="AsComponent"><span class="type">AsComponent</span></a> or <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. </p>
<p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="as-metadata-get-components"></a><h3>as_metadata_get_components ()</h3>
<pre class="programlisting"><a href="../glib/glib-Pointer-Arrays.html#GPtrArray"><span class="returnvalue">GPtrArray</span></a> *
as_metadata_get_components (<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> *metad</code></em>);</pre>
<div class="refsect3">
<a name="as-metadata-get-components.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>metad</p></td>
<td class="parameter_description"><p>a <a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> instance.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="as-metadata-get-components.returns"></a><h4>Returns</h4>
<p> A <a href="../glib/glib-Pointer-Arrays.html#GPtrArray"><span class="type">GPtrArray</span></a> of all parsed components. </p>
<p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>][<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> AsComponent]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="as-metadata-clear-components"></a><h3>as_metadata_clear_components ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
as_metadata_clear_components (<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> *metad</code></em>);</pre>
</div>
<hr>
<div class="refsect2">
<a name="as-metadata-add-component"></a><h3>as_metadata_add_component ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
as_metadata_add_component (<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> *metad</code></em>,
<em class="parameter"><code><a class="link" href="appstream-AsComponent.html#AsComponent" title="AsComponent"><span class="type">AsComponent</span></a> *cpt</code></em>);</pre>
<p>Add an <a class="link" href="appstream-AsComponent.html#AsComponent" title="AsComponent"><span class="type">AsComponent</span></a> to the list of components.
This can be used to add multiple components in order to
produce a distro-XML AppStream metadata file.</p>
</div>
<hr>
<div class="refsect2">
<a name="as-metadata-component-to-metainfo"></a><h3>as_metadata_component_to_metainfo ()</h3>
<pre class="programlisting"><a href="../glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
as_metadata_component_to_metainfo (<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> *metad</code></em>,
<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsFormatKind" title="enum AsFormatKind"><span class="type">AsFormatKind</span></a> format</code></em>,
<em class="parameter"><code><a href="../glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);</pre>
<p>Convert an <a class="link" href="appstream-AsComponent.html#AsComponent" title="AsComponent"><span class="type">AsComponent</span></a> to metainfo data.
This will always be XML, YAML is no valid format for metainfo files.</p>
<p>The amount of localization included in the metadata depends on how the <a class="link" href="appstream-AsComponent.html#AsComponent" title="AsComponent"><span class="type">AsComponent</span></a>
was initially loaded and whether it contains data for all locale.</p>
<p>The first <a class="link" href="appstream-AsComponent.html#AsComponent" title="AsComponent"><span class="type">AsComponent</span></a> added to the internal list will be transformed.
In case no component is present, <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> is returned.</p>
<div class="refsect3">
<a name="as-metadata-component-to-metainfo.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>metad</p></td>
<td class="parameter_description"><p>An instance of <a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>format</p></td>
<td class="parameter_description"><p>The format to use (XML or YAML)</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>error</p></td>
<td class="parameter_description"><p>A <a href="../glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="as-metadata-component-to-metainfo.returns"></a><h4>Returns</h4>
<p> A string containing the XML metadata. Free with <a href="../glib/glib-Memory-Allocation.html#g-free"><code class="function">g_free()</code></a>. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="as-metadata-save-metainfo"></a><h3>as_metadata_save_metainfo ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
as_metadata_save_metainfo (<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> *metad</code></em>,
<em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *fname</code></em>,
<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsFormatKind" title="enum AsFormatKind"><span class="type">AsFormatKind</span></a> format</code></em>,
<em class="parameter"><code><a href="../glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);</pre>
<p>Serialize <a class="link" href="appstream-AsComponent.html#AsComponent" title="AsComponent"><span class="type">AsComponent</span></a> instance to XML and save it to file.
An existing file at the same location will be overridden.</p>
<div class="refsect3">
<a name="as-metadata-save-metainfo.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>fname</p></td>
<td class="parameter_description"><p>The filename for the new metadata file.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>format</p></td>
<td class="parameter_description"><p>The format to save this file in. Only XML is supported at time.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="as-metadata-components-to-collection"></a><h3>as_metadata_components_to_collection ()</h3>
<pre class="programlisting"><a href="../glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
as_metadata_components_to_collection (<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> *metad</code></em>,
<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsFormatKind" title="enum AsFormatKind"><span class="type">AsFormatKind</span></a> format</code></em>,
<em class="parameter"><code><a href="../glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);</pre>
<p>Serialize all <a class="link" href="appstream-AsComponent.html#AsComponent" title="AsComponent"><span class="type">AsComponent</span></a> instances into AppStream
collection metadata.
<a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> is returned if there is nothing to serialize.</p>
<div class="refsect3">
<a name="as-metadata-components-to-collection.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>metad</p></td>
<td class="parameter_description"><p>An instance of <a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>format</p></td>
<td class="parameter_description"><p>The format to serialize the data to (XML or YAML).</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>error</p></td>
<td class="parameter_description"><p>A <a href="../glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="as-metadata-components-to-collection.returns"></a><h4>Returns</h4>
<p> A string containing the YAML or XML data. Free with <a href="../glib/glib-Memory-Allocation.html#g-free"><code class="function">g_free()</code></a>. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="as-metadata-save-collection"></a><h3>as_metadata_save_collection ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
as_metadata_save_collection (<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> *metad</code></em>,
<em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *fname</code></em>,
<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsFormatKind" title="enum AsFormatKind"><span class="type">AsFormatKind</span></a> format</code></em>,
<em class="parameter"><code><a href="../glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);</pre>
</div>
<hr>
<div class="refsect2">
<a name="as-metadata-get-format-version"></a><h3>as_metadata_get_format_version ()</h3>
<pre class="programlisting"><a class="link" href="appstream-AsMetadata.html#AsFormatVersion" title="enum AsFormatVersion"><span class="returnvalue">AsFormatVersion</span></a>
as_metadata_get_format_version (<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> *metad</code></em>);</pre>
<div class="refsect3">
<a name="as-metadata-get-format-version.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>metad</p></td>
<td class="parameter_description"><p>an <a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> instance.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="as-metadata-get-format-version.returns"></a><h4>Returns</h4>
<p> The AppStream metadata format version.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="as-metadata-set-format-version"></a><h3>as_metadata_set_format_version ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
as_metadata_set_format_version (<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> *metad</code></em>,
<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsFormatVersion" title="enum AsFormatVersion"><span class="type">AsFormatVersion</span></a> version</code></em>);</pre>
<p>Set the current AppStream format version that we should generate data for
or be able to read.</p>
<div class="refsect3">
<a name="as-metadata-set-format-version.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>metad</p></td>
<td class="parameter_description"><p>a <a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> instance.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>version</p></td>
<td class="parameter_description"><p>the AppStream metadata format version as <a class="link" href="appstream-AsMetadata.html#AsFormatVersion" title="enum AsFormatVersion"><span class="type">AsFormatVersion</span></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="as-metadata-get-format-style"></a><h3>as_metadata_get_format_style ()</h3>
<pre class="programlisting"><a class="link" href="appstream-AsMetadata.html#AsFormatStyle" title="enum AsFormatStyle"><span class="returnvalue">AsFormatStyle</span></a>
as_metadata_get_format_style (<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> *metad</code></em>);</pre>
<p>Get the metadata parsing mode.</p>
<div class="refsect3">
<a name="as-metadata-get-format-style.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>metad</p></td>
<td class="parameter_description"><p>a <a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> instance.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="as-metadata-set-format-style"></a><h3>as_metadata_set_format_style ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
as_metadata_set_format_style (<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> *metad</code></em>,
<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsFormatStyle" title="enum AsFormatStyle"><span class="type">AsFormatStyle</span></a> mode</code></em>);</pre>
<p>Sets the current metadata parsing mode.</p>
<div class="refsect3">
<a name="as-metadata-set-format-style.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>metad</p></td>
<td class="parameter_description"><p>a <a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> instance.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>mode</p></td>
<td class="parameter_description"><p>the <a class="link" href="appstream-AsMetadata.html#AsFormatStyle" title="enum AsFormatStyle"><span class="type">AsFormatStyle</span></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="as-metadata-set-locale"></a><h3>as_metadata_set_locale ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
as_metadata_set_locale (<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> *metad</code></em>,
<em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *locale</code></em>);</pre>
<p>Sets the locale which should be read when processing metadata.
All other locales are ignored, which increases parsing speed and
reduces memory usage.
If you set the locale to "ALL", all locales will be read.</p>
<div class="refsect3">
<a name="as-metadata-set-locale.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>metad</p></td>
<td class="parameter_description"><p>a <a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> instance.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>locale</p></td>
<td class="parameter_description"><p>the locale.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="as-metadata-get-locale"></a><h3>as_metadata_get_locale ()</h3>
<pre class="programlisting">const <a href="../glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
as_metadata_get_locale (<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> *metad</code></em>);</pre>
<p>Gets the current active locale for parsing metadata,
or "ALL" if all locales are read.</p>
<div class="refsect3">
<a name="as-metadata-get-locale.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>metad</p></td>
<td class="parameter_description"><p>a <a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> instance.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="as-metadata-get-locale.returns"></a><h4>Returns</h4>
<p> Locale used for metadata parsing.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="as-metadata-get-origin"></a><h3>as_metadata_get_origin ()</h3>
<pre class="programlisting">const <a href="../glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
as_metadata_get_origin (<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> *metad</code></em>);</pre>
<div class="refsect3">
<a name="as-metadata-get-origin.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>metad</p></td>
<td class="parameter_description"><p>an <a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> instance.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="as-metadata-get-origin.returns"></a><h4>Returns</h4>
<p> The origin of AppStream distro metadata</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="as-metadata-set-origin"></a><h3>as_metadata_set_origin ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
as_metadata_set_origin (<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> *metad</code></em>,
<em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *origin</code></em>);</pre>
<p>Set the origin of AppStream distro metadata</p>
<div class="refsect3">
<a name="as-metadata-set-origin.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>metad</p></td>
<td class="parameter_description"><p>an <a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> instance.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>origin</p></td>
<td class="parameter_description"><p>the origin of AppStream distro metadata.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="as-metadata-get-update-existing"></a><h3>as_metadata_get_update_existing ()</h3>
<pre class="programlisting"><a href="../glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
as_metadata_get_update_existing (<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> *metad</code></em>);</pre>
<div class="refsect3">
<a name="as-metadata-get-update-existing.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>metad</p></td>
<td class="parameter_description"><p>an <a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> instance.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="as-metadata-get-update-existing.returns"></a><h4>Returns</h4>
<p> Whether existing components should be updates with the parsed data,
instead of creating new ones.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="as-metadata-set-update-existing"></a><h3>as_metadata_set_update_existing ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
as_metadata_set_update_existing (<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> *metad</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> update</code></em>);</pre>
<p>If set to <a href="../glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a>, the parser will not create new components but
instead update existing components in the pool with new metadata.</p>
<p>NOTE: Right now, this feature is only implemented for metainfo XML parsing!</p>
<div class="refsect3">
<a name="as-metadata-set-update-existing.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>metad</p></td>
<td class="parameter_description"><p>an <a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> instance.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>update</p></td>
<td class="parameter_description"><p>A boolean value.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="as-metadata-get-write-header"></a><h3>as_metadata_get_write_header ()</h3>
<pre class="programlisting"><a href="../glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
as_metadata_get_write_header (<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> *metad</code></em>);</pre>
<div class="refsect3">
<a name="as-metadata-get-write-header.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>metad</p></td>
<td class="parameter_description"><p>an <a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> instance.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="as-metadata-get-write-header.returns"></a><h4>Returns</h4>
<p> Whether we will write a header/root node in collection metadata.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="as-metadata-set-write-header"></a><h3>as_metadata_set_write_header ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
as_metadata_set_write_header (<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> *metad</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> wheader</code></em>);</pre>
<p>If set to <a href="../glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a>, tehe metadata writer will omit writing a DEP-11
header document when in YAML mode, and will not write a root components node
when writing XML data.
Please keep in mind that this will create an invalid DEP-11 YAML AppStream
collection metadata file, and an invalid XML file.
This parameter should only be changed e.g. by the appstream-generator tool.</p>
<p>NOTE: Right now, this feature is only implemented for YAML!</p>
<div class="refsect3">
<a name="as-metadata-set-write-header.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>metad</p></td>
<td class="parameter_description"><p>an <a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> instance.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>wheader</p></td>
<td class="parameter_description"><p>A boolean value.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="as-metadata-get-architecture"></a><h3>as_metadata_get_architecture ()</h3>
<pre class="programlisting">const <a href="../glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
as_metadata_get_architecture (<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> *metad</code></em>);</pre>
<div class="refsect3">
<a name="as-metadata-get-architecture.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>metad</p></td>
<td class="parameter_description"><p>an <a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> instance.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="as-metadata-get-architecture.returns"></a><h4>Returns</h4>
<p> The architecture of AppStream distro metadata</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="as-metadata-set-architecture"></a><h3>as_metadata_set_architecture ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
as_metadata_set_architecture (<em class="parameter"><code><a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> *metad</code></em>,
<em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *arch</code></em>);</pre>
<p>Set the architecture the components in this metadata belong to.</p>
<div class="refsect3">
<a name="as-metadata-set-architecture.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>metad</p></td>
<td class="parameter_description"><p>an <a class="link" href="appstream-AsMetadata.html#AsMetadata" title="AsMetadata"><span class="type">AsMetadata</span></a> instance.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>arch</p></td>
<td class="parameter_description"><p>an architecture string.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
<div class="refsect1">
<a name="appstream-AsMetadata.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="AS-TYPE-METADATA:CAPS"></a><h3>AS_TYPE_METADATA</h3>
<pre class="programlisting">#define AS_TYPE_METADATA (as_metadata_get_type ())
</pre>
</div>
<hr>
<div class="refsect2">
<a name="AsMetadataClass"></a><h3>struct AsMetadataClass</h3>
<pre class="programlisting">struct AsMetadataClass {
GObjectClass parent_class;
};
</pre>
</div>
<hr>
<div class="refsect2">
<a name="AsFormatStyle"></a><h3>enum AsFormatStyle</h3>
<p>There are a few differences between AppStream's metainfo files (shipped by upstream projects)
and the collection metadata (shipped by distributors).
The data source kind indicates which style we should process.
Usually you do not want to set this explicitly.</p>
<div class="refsect3">
<a name="AsFormatStyle.members"></a><h4>Members</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="300px" class="enum_members_name">
<col class="enum_members_description">
<col width="200px" class="enum_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="enum_member_name"><p><a name="AS-FORMAT-STYLE-UNKNOWN:CAPS"></a>AS_FORMAT_STYLE_UNKNOWN</p></td>
<td> </td>
<td> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="AS-FORMAT-STYLE-METAINFO:CAPS"></a>AS_FORMAT_STYLE_METAINFO</p></td>
<td class="enum_member_description">
<p>Parse AppStream upstream metadata (metainfo files)</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="AS-FORMAT-STYLE-COLLECTION:CAPS"></a>AS_FORMAT_STYLE_COLLECTION</p></td>
<td class="enum_member_description">
<p>Parse AppStream metadata collections (shipped by software distributors)</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="AsFormatKind"></a><h3>enum AsFormatKind</h3>
<p>Format of the AppStream metadata.</p>
<div class="refsect3">
<a name="AsFormatKind.members"></a><h4>Members</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="300px" class="enum_members_name">
<col class="enum_members_description">
<col width="200px" class="enum_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="enum_member_name"><p><a name="AS-FORMAT-KIND-UNKNOWN:CAPS"></a>AS_FORMAT_KIND_UNKNOWN</p></td>
<td class="enum_member_description">
<p>Unknown metadata format.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="AS-FORMAT-KIND-XML:CAPS"></a>AS_FORMAT_KIND_XML</p></td>
<td class="enum_member_description">
<p>AppStream XML metadata.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="AS-FORMAT-KIND-YAML:CAPS"></a>AS_FORMAT_KIND_YAML</p></td>
<td class="enum_member_description">
<p>AppStream YAML (DEP-11) metadata.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="AS-FORMAT-KIND-DESKTOP-ENTRY:CAPS"></a>AS_FORMAT_KIND_DESKTOP_ENTRY</p></td>
<td class="enum_member_description">
<p>XDG Desktop Entry data.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="AsFormatVersion"></a><h3>enum AsFormatVersion</h3>
<p>Format version / API level of the AppStream metadata.</p>
<div class="refsect3">
<a name="AsFormatVersion.members"></a><h4>Members</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="300px" class="enum_members_name">
<col class="enum_members_description">
<col width="200px" class="enum_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="enum_member_name"><p><a name="AS-FORMAT-VERSION-V0-6:CAPS"></a>AS_FORMAT_VERSION_V0_6</p></td>
<td class="enum_member_description">
<p>0.6</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="AS-FORMAT-VERSION-V0-7:CAPS"></a>AS_FORMAT_VERSION_V0_7</p></td>
<td class="enum_member_description">
<p>0.7</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="AS-FORMAT-VERSION-V0-8:CAPS"></a>AS_FORMAT_VERSION_V0_8</p></td>
<td class="enum_member_description">
<p>0.8</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="AS-FORMAT-VERSION-V0-9:CAPS"></a>AS_FORMAT_VERSION_V0_9</p></td>
<td class="enum_member_description">
<p>0.9</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="AS-FORMAT-VERSION-V0-10:CAPS"></a>AS_FORMAT_VERSION_V0_10</p></td>
<td class="enum_member_description">
<p>0.10</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="AS-FORMAT-VERSION-V0-11:CAPS"></a>AS_FORMAT_VERSION_V0_11</p></td>
<td class="enum_member_description">
<p>0.11</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="AS-CURRENT-FORMAT-VERSION:CAPS"></a><h3>AS_CURRENT_FORMAT_VERSION</h3>
<pre class="programlisting">#define AS_CURRENT_FORMAT_VERSION AS_FORMAT_VERSION_V0_11
</pre>
</div>
<hr>
<div class="refsect2">
<a name="AsMetadataError"></a><h3>enum AsMetadataError</h3>
<p>A metadata processing error.</p>
<div class="refsect3">
<a name="AsMetadataError.members"></a><h4>Members</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="300px" class="enum_members_name">
<col class="enum_members_description">
<col width="200px" class="enum_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="enum_member_name"><p><a name="AS-METADATA-ERROR-FAILED:CAPS"></a>AS_METADATA_ERROR_FAILED</p></td>
<td class="enum_member_description">
<p>Generic failure.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="AS-METADATA-ERROR-PARSE:CAPS"></a>AS_METADATA_ERROR_PARSE</p></td>
<td class="enum_member_description">
<p>Unable to parse the metadata file.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="AS-METADATA-ERROR-FORMAT-UNEXPECTED:CAPS"></a>AS_METADATA_ERROR_FORMAT_UNEXPECTED</p></td>
<td class="enum_member_description">
<p>Expected collection metadata but got metainfo metadata, or vice versa.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="AS-METADATA-ERROR-NO-COMPONENT:CAPS"></a>AS_METADATA_ERROR_NO_COMPONENT</p></td>
<td class="enum_member_description">
<p>We expected a component in the pool, but couldn't find one.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="AS-METADATA-ERROR-VALUE-MISSING:CAPS"></a>AS_METADATA_ERROR_VALUE_MISSING</p></td>
<td class="enum_member_description">
<p>A essential value is missing in the source document.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="AS-METADATA-ERROR:CAPS"></a><h3>AS_METADATA_ERROR</h3>
<pre class="programlisting">#define AS_METADATA_ERROR as_metadata_error_quark ()
</pre>
</div>
<hr>
<div class="refsect2">
<a name="AsMetadata"></a><h3>AsMetadata</h3>
<pre class="programlisting">typedef struct _AsMetadata AsMetadata;</pre>
</div>
</div>
</div>
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