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<title>String Utility Functions: LibGlabels 3.0 Reference Manual</title>
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<h2><span class="refentrytitle"><a name="libglabels-3.0-str.top_of_page"></a>String Utility Functions</span></h2>
<p>String Utility Functions — String utility functions provided by libglabels</p>
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<div class="refsect1">
<a name="libglabels-3.0-str.functions"></a><h2>Functions</h2>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">
<a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>
</td>
<td class="function_name">
<a class="link" href="libglabels-3.0-str.html#lgl-str-utf8-casecmp" title="lgl_str_utf8_casecmp ()">lgl_str_utf8_casecmp</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>
</td>
<td class="function_name">
<a class="link" href="libglabels-3.0-str.html#lgl-str-part-name-cmp" title="lgl_str_part_name_cmp ()">lgl_str_part_name_cmp</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
</td>
<td class="function_name">
<a class="link" href="libglabels-3.0-str.html#lgl-str-format-fraction" title="lgl_str_format_fraction ()">lgl_str_format_fraction</a> <span class="c_punctuation">()</span>
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</tbody>
</table></div>
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<div class="refsect1">
<a name="libglabels-3.0-str.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include <libglabels/lgl-str.h>
</pre>
</div>
<div class="refsect1">
<a name="libglabels-3.0-str.description"></a><h2>Description</h2>
<p>
This section defines string utility functions used by libglabels and of
possible use to a user of libglabels.
</p>
</div>
<div class="refsect1">
<a name="libglabels-3.0-str.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="lgl-str-utf8-casecmp"></a><h3>lgl_str_utf8_casecmp ()</h3>
<pre class="programlisting"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>
lgl_str_utf8_casecmp (<em class="parameter"><code>const <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *s1</code></em>,
<em class="parameter"><code>const <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *s2</code></em>);</pre>
<p>Compare two UTF-8 strings, ignoring the case of characters.</p>
<p>This function should be used only on strings that are known to be encoded
in UTF-8 or a compatible UTF-8 subset.</p>
<div class="refsect3">
<a name="id-1.4.3.6.2.6"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>s1</p></td>
<td class="parameter_description"><p>string to compare with s2.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>s2</p></td>
<td class="parameter_description"><p>string to compare with s1.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.4.3.6.2.7"></a><h4>Returns</h4>
<p> 0 if the strings match, a negative value if s1 < s2,
or a positive value if s1 > s2.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="lgl-str-part-name-cmp"></a><h3>lgl_str_part_name_cmp ()</h3>
<pre class="programlisting"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>
lgl_str_part_name_cmp (<em class="parameter"><code>const <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *s1</code></em>,
<em class="parameter"><code>const <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *s2</code></em>);</pre>
<p>Compare two UTF-8 strings representing part names or numbers. This function
uses a natural sort order:</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem"><p>Ignores case.</p></li>
<li class="listitem"><p>Strings are divided into chunks (numeric and non-numeric)</p></li>
<li class="listitem"><p>Non-numeric chunks are compared character by character</p></li>
<li class="listitem"><p>Numerical chunks are compared numerically, so that "20" precedes "100".</p></li>
<li class="listitem"><p>Comparison of chunks is performed left to right until the first difference
is encountered or all chunks evaluate as equal.</p></li>
</ul></div>
<p>This function should be used only on strings that are known to be encoded
in UTF-8 or a compatible UTF-8 subset.</p>
<p>Numeric chunks are converted to 64 bit unsigned integers for comparison,
so the behaviour may be unpredictable for numeric chunks that exceed
18446744073709551615.</p>
<div class="refsect3">
<a name="id-1.4.3.6.3.8"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>s1</p></td>
<td class="parameter_description"><p>string to compare with s2.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>s2</p></td>
<td class="parameter_description"><p>string to compare with s1.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.4.3.6.3.9"></a><h4>Returns</h4>
<p> 0 if the strings match, a negative value if s1 < s2,
or a positive value if s1 > s2.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="lgl-str-format-fraction"></a><h3>lgl_str_format_fraction ()</h3>
<pre class="programlisting"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
lgl_str_format_fraction (<em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> x</code></em>);</pre>
<p>Create fractional representation of number, if possible. Uses UTF-8 superscripts and
subscripts for numerator and denominator values respecively.</p>
<div class="refsect3">
<a name="id-1.4.3.6.4.5"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>x</p></td>
<td class="parameter_description"><p>Floating point number to convert to fractional notation</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.4.3.6.4.6"></a><h4>Returns</h4>
<p> UTF-8 string containing fractional representation of x.</p>
</div>
</div>
</div>
<div class="refsect1">
<a name="libglabels-3.0-str.other_details"></a><h2>Types and Values</h2>
</div>
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