glib-unicode-manipulation.html

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<a name="id3002169"></a><h3>
<a name="g-unichar-iswide-cjk"></a>g_unichar_iswide_cjk ()</h3>
<a class="indexterm" name="id3002185"></a><pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean">gboolean</a>            g_unichar_iswide_cjk                (<a class="link" href="glib-Unicode-Manipulation.html#gunichar">gunichar</a> c);</pre>
<p>
Determines if a character is typically rendered in a double-width
cell under legacy East Asian locales.  If a character is wide according to
<a class="link" href="glib-Unicode-Manipulation.html#g-unichar-iswide"><code class="function">g_unichar_iswide()</code></a>, then it is also reported wide with this function, but
the converse is not necessarily true.  See the
<a class="ulink" href="http://www.unicode.org/reports/tr11/" target="_top">Unicode Standard
Annex <span class="type">11</span></a> for details.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em>&#160;:</span></p></td>
<td> a Unicode character
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></p></td>
<td> <a class="link" href="glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the character is wide in legacy East Asian locales

</td>
</tr>
</tbody>
</table></div>
<p class="since">Since  2.12
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id3002292"></a><h3>
<a name="g-unichar-iszerowidth"></a>g_unichar_iszerowidth ()</h3>
<a class="indexterm" name="id3002307"></a><pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean">gboolean</a>            g_unichar_iszerowidth               (<a class="link" href="glib-Unicode-Manipulation.html#gunichar">gunichar</a> c);</pre>
<p>
Determines if a given character typically takes zero width when rendered.
The return value is <a class="link" href="glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> for all non-spacing and enclosing marks
(e.g., combining accents), format characters, zero-width
space, but not U+00AD SOFT HYPHEN.
</p>
<p>
A typical use of this function is with one of <a class="link" href="glib-Unicode-Manipulation.html#g-unichar-iswide"><code class="function">g_unichar_iswide()</code></a> or
<a class="link" href="glib-Unicode-Manipulation.html#g-unichar-iswide-cjk"><code class="function">g_unichar_iswide_cjk()</code></a> to determine the number of cells a string occupies
when displayed on a grid display (terminals).  However, note that not all
terminals support zero-width rendering of zero-width marks.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em>&#160;:</span></p></td>
<td> a Unicode character
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></p></td>
<td> <a class="link" href="glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the character has zero width

</td>
</tr>
</tbody>
</table></div>
<p class="since">Since  2.14
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id3002428"></a><h3>
<a name="g-unichar-toupper"></a>g_unichar_toupper ()</h3>
<a class="indexterm" name="id3002441"></a><pre class="programlisting"><a class="link" href="glib-Unicode-Manipulation.html#gunichar">gunichar</a>            g_unichar_toupper                   (<a class="link" href="glib-Unicode-Manipulation.html#gunichar">gunichar</a> c);</pre>
<p>
Converts a character to uppercase.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em>&#160;:</span></p></td>
<td> a Unicode character
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></p></td>
<td> the result of converting <em class="parameter"><code>c</code></em> to uppercase.
              If <em class="parameter"><code>c</code></em> is not an lowercase or titlecase character,
              or has no upper case equivalent <em class="parameter"><code>c</code></em> is returned unchanged.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id3002521"></a><h3>
<a name="g-unichar-tolower"></a>g_unichar_tolower ()</h3>
<a class="indexterm" name="id3002534"></a><pre class="programlisting"><a class="link" href="glib-Unicode-Manipulation.html#gunichar">gunichar</a>            g_unichar_tolower                   (<a class="link" href="glib-Unicode-Manipulation.html#gunichar">gunichar</a> c);</pre>
<p>
Converts a character to lower case.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em>&#160;:</span></p></td>
<td> a Unicode character.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></p></td>
<td> the result of converting <em class="parameter"><code>c</code></em> to lower case.
              If <em class="parameter"><code>c</code></em> is not an upperlower or titlecase character,
              or has no lowercase equivalent <em class="parameter"><code>c</code></em> is returned unchanged.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id3002614"></a><h3>
<a name="g-unichar-totitle"></a>g_unichar_totitle ()</h3>
<a class="indexterm" name="id3002627"></a><pre class="programlisting"><a class="link" href="glib-Unicode-Manipulation.html#gunichar">gunichar</a>            g_unichar_totitle                   (<a class="link" href="glib-Unicode-Manipulation.html#gunichar">gunichar</a> c);</pre>
<p>
Converts a character to the titlecase.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em>&#160;:</span></p></td>
<td> a Unicode character
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></p></td>
<td> the result of converting <em class="parameter"><code>c</code></em> to titlecase.
              If <em class="parameter"><code>c</code></em> is not an uppercase or lowercase character,
              <em class="parameter"><code>c</code></em> is returned unchanged.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id3002707"></a><h3>
<a name="g-unichar-digit-value"></a>g_unichar_digit_value ()</h3>
<a class="indexterm" name="id3002720"></a><pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint">gint</a>                g_unichar_digit_value               (<a class="link" href="glib-Unicode-Manipulation.html#gunichar">gunichar</a> c);</pre>
<p>
Determines the numeric value of a character as a decimal
digit.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em>&#160;:</span></p></td>
<td> a Unicode character
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></p></td>
<td> If <em class="parameter"><code>c</code></em> is a decimal digit (according to
<a class="link" href="glib-Unicode-Manipulation.html#g-unichar-isdigit"><code class="function">g_unichar_isdigit()</code></a>), its numeric value. Otherwise, -1.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id3002799"></a><h3>
<a name="g-unichar-xdigit-value"></a>g_unichar_xdigit_value ()</h3>
<a class="indexterm" name="id3002812"></a><pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint">gint</a>                g_unichar_xdigit_value              (<a class="link" href="glib-Unicode-Manipulation.html#gunichar">gunichar</a> c);</pre>
<p>
Determines the numeric value of a character as a hexidecimal
digit.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em>&#160;:</span></p></td>
<td> a Unicode character
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></p></td>
<td> If <em class="parameter"><code>c</code></em> is a hex digit (according to
<a class="link" href="glib-Unicode-Manipulation.html#g-unichar-isxdigit"><code class="function">g_unichar_isxdigit()</code></a>), its numeric value. Otherwise, -1.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id3002891"></a><h3>
<a name="GUnicodeType"></a>enum GUnicodeType</h3>
<a class="indexterm" name="id3002904"></a><pre class="programlisting">typedef enum
{
  G_UNICODE_CONTROL,
  G_UNICODE_FORMAT,
  G_UNICODE_UNASSIGNED,
  G_UNICODE_PRIVATE_USE,
  G_UNICODE_SURROGATE,
  G_UNICODE_LOWERCASE_LETTER,
  G_UNICODE_MODIFIER_LETTER,
  G_UNICODE_OTHER_LETTER,
  G_UNICODE_TITLECASE_LETTER,
  G_UNICODE_UPPERCASE_LETTER,
  G_UNICODE_COMBINING_MARK,
  G_UNICODE_ENCLOSING_MARK,
  G_UNICODE_NON_SPACING_MARK,
  G_UNICODE_DECIMAL_NUMBER,