<title>hb-deprecated: HarfBuzz Manual</title>
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<a href="#harfbuzz-hb-deprecated.description" class="shortcut">Description</a></span>
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<a name="harfbuzz-hb-deprecated.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">
+<col width="150px" class="functions_proto_type">
+<col class="functions_proto_name">
</colgroup>
<tbody>
<tr>
</td>
</tr>
<tr>
+<td class="function_type">unsigned <span class="returnvalue">int</span>
+</td>
+<td class="function_name">
+<span class="c_punctuation">(</span><a class="link" href="harfbuzz-hb-deprecated.html#hb-unicode-eastasian-width-func-t" title="hb_unicode_eastasian_width_func_t ()">*hb_unicode_eastasian_width_func_t</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
+</td>
+</tr>
+<tr>
+<td class="function_type">unsigned <span class="returnvalue">int</span>
+</td>
+<td class="function_name">
+<span class="c_punctuation">(</span><a class="link" href="harfbuzz-hb-deprecated.html#hb-unicode-decompose-compatibility-func-t" title="hb_unicode_decompose_compatibility_func_t ()">*hb_unicode_decompose_compatibility_func_t</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
+</td>
+</tr>
+<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<a name="harfbuzz-hb-deprecated.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">
+<col width="150px" class="other_proto_type">
+<col class="other_proto_name">
</colgroup>
<tbody>
<tr>
<div class="refsect2">
<a name="hb-font-get-glyph-func-t"></a><h3>hb_font_get_glyph_func_t ()</h3>
<pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
-<span class="c_punctuation">(</span>*hb_font_get_glyph_func_t<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="harfbuzz-hb-font.html#hb-font-t"><span class="type">hb_font_t</span></a> *font</code></em>,
+<span class="c_punctuation">(</span>*hb_font_get_glyph_func_t<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="harfbuzz-hb-font.html#hb-font-t" title="hb_font_t"><span class="type">hb_font_t</span></a> *font</code></em>,
<em class="parameter"><code><span class="type">void</span> *font_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> unicode</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> variation_selector</code></em>,
<div class="refsect2">
<a name="hb-ot-layout-table-find-script"></a><h3>hb_ot_layout_table_find_script ()</h3>
<pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
-hb_ot_layout_table_find_script (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t"><span class="type">hb_face_t</span></a> *face</code></em>,
+hb_ot_layout_table_find_script (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> table_tag</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> script_tag</code></em>,
<em class="parameter"><code>unsigned <span class="type">int</span> *script_index</code></em>);</pre>
<tbody>
<tr>
<td class="parameter_name"><p>face</p></td>
-<td class="parameter_description"><p><a class="link" href="harfbuzz-hb-face.html#hb-face-t"><span class="type">hb_face_t</span></a> to work upon</p></td>
+<td class="parameter_description"><p><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> to work upon</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
</div>
<hr>
<div class="refsect2">
+<a name="hb-unicode-eastasian-width-func-t"></a><h3>hb_unicode_eastasian_width_func_t ()</h3>
+<pre class="programlisting">unsigned <span class="returnvalue">int</span>
+<span class="c_punctuation">(</span>*hb_unicode_eastasian_width_func_t<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="harfbuzz-hb-unicode.html#hb-unicode-funcs-t" title="hb_unicode_funcs_t"><span class="type">hb_unicode_funcs_t</span></a> *ufuncs</code></em>,
+ <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> unicode</code></em>,
+ <em class="parameter"><code><span class="type">void</span> *user_data</code></em>);</pre>
+<div class="warning"><p><code class="literal">hb_unicode_eastasian_width_func_t</code> has been deprecated since version 2.0.0 and should not be used in newly-written code.</p></div>
+</div>
+<hr>
+<div class="refsect2">
+<a name="hb-unicode-decompose-compatibility-func-t"></a><h3>hb_unicode_decompose_compatibility_func_t ()</h3>
+<pre class="programlisting">unsigned <span class="returnvalue">int</span>
+<span class="c_punctuation">(</span>*hb_unicode_decompose_compatibility_func_t<span class="c_punctuation">)</span>
+ (<em class="parameter"><code><a class="link" href="harfbuzz-hb-unicode.html#hb-unicode-funcs-t" title="hb_unicode_funcs_t"><span class="type">hb_unicode_funcs_t</span></a> *ufuncs</code></em>,
+ <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> u</code></em>,
+ <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> *decomposed</code></em>,
+ <em class="parameter"><code><span class="type">void</span> *user_data</code></em>);</pre>
+<div class="warning"><p><code class="literal">hb_unicode_decompose_compatibility_func_t</code> has been deprecated since version 2.0.0 and should not be used in newly-written code.</p></div>
+<p>Fully decompose <em class="parameter"><code>u</code></em>
+ to its Unicode compatibility decomposition. The codepoints of the decomposition will be written to <em class="parameter"><code>decomposed</code></em>
+.
+The complete length of the decomposition will be returned.</p>
+<p>If <em class="parameter"><code>u</code></em>
+ has no compatibility decomposition, zero should be returned.</p>
+<p>The Unicode standard guarantees that a buffer of length <a class="link" href="harfbuzz-hb-deprecated.html#HB-UNICODE-MAX-DECOMPOSITION-LEN:CAPS" title="HB_UNICODE_MAX_DECOMPOSITION_LEN"><code class="literal">HB_UNICODE_MAX_DECOMPOSITION_LEN</code></a> codepoints will always be sufficient for any
+compatibility decomposition plus an terminating value of 0. Consequently, <em class="parameter"><code>decompose</code></em>
+ must be allocated by the caller to be at least this length. Implementations
+of this function type must ensure that they do not write past the provided array.</p>
+<div class="refsect3">
+<a name="hb-unicode-decompose-compatibility-func-t.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>ufuncs</p></td>
+<td class="parameter_description"><p>a Unicode function structure</p></td>
+<td class="parameter_annotations"> </td>
+</tr>
+<tr>
+<td class="parameter_name"><p>u</p></td>
+<td class="parameter_description"><p>codepoint to decompose</p></td>
+<td class="parameter_annotations"> </td>
+</tr>
+<tr>
+<td class="parameter_name"><p>decomposed</p></td>
+<td class="parameter_description"><p>address of codepoint array (of length <a class="link" href="harfbuzz-hb-deprecated.html#HB-UNICODE-MAX-DECOMPOSITION-LEN:CAPS" title="HB_UNICODE_MAX_DECOMPOSITION_LEN"><code class="literal">HB_UNICODE_MAX_DECOMPOSITION_LEN</code></a>) to write decomposition into</p></td>
+<td class="parameter_annotations"> </td>
+</tr>
+<tr>
+<td class="parameter_name"><p>user_data</p></td>
+<td class="parameter_description"><p>user data pointer as passed to <code class="function">hb_unicode_funcs_set_decompose_compatibility_func()</code></p></td>
+<td class="parameter_annotations"> </td>
+</tr>
+</tbody>
+</table></div>
+</div>
+<div class="refsect3">
+<a name="hb-unicode-decompose-compatibility-func-t.returns"></a><h4>Returns</h4>
+<p> number of codepoints in the full compatibility decomposition of <em class="parameter"><code>u</code></em>
+, or 0 if no decomposition available.</p>
+</div>
+</div>
+<hr>
+<div class="refsect2">
<a name="hb-font-funcs-set-glyph-v-kerning-func"></a><h3>hb_font_funcs_set_glyph_v_kerning_func ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_font_funcs_set_glyph_v_kerning_func
- (<em class="parameter"><code><a class="link" href="harfbuzz-hb-font.html#hb-font-funcs-t"><span class="type">hb_font_funcs_t</span></a> *ffuncs</code></em>,
+ (<em class="parameter"><code><a class="link" href="harfbuzz-hb-font.html#hb-font-funcs-t" title="hb_font_funcs_t"><span class="type">hb_font_funcs_t</span></a> *ffuncs</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-deprecated.html#hb-font-get-glyph-v-kerning-func-t" title="hb_font_get_glyph_v_kerning_func_t"><span class="type">hb_font_get_glyph_v_kerning_func_t</span></a> func</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-destroy-func-t" title="hb_destroy_func_t ()"><span class="type">hb_destroy_func_t</span></a> destroy</code></em>);</pre>
<div class="refsect2">
<a name="hb-font-get-glyph-v-kerning"></a><h3>hb_font_get_glyph_v_kerning ()</h3>
<pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-position-t" title="hb_position_t"><span class="returnvalue">hb_position_t</span></a>
-hb_font_get_glyph_v_kerning (<em class="parameter"><code><a class="link" href="harfbuzz-hb-font.html#hb-font-t"><span class="type">hb_font_t</span></a> *font</code></em>,
+hb_font_get_glyph_v_kerning (<em class="parameter"><code><a class="link" href="harfbuzz-hb-font.html#hb-font-t" title="hb_font_t"><span class="type">hb_font_t</span></a> *font</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> top_glyph</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> bottom_glyph</code></em>);</pre>
<div class="warning"><p><code class="literal">hb_font_get_glyph_v_kerning</code> has been deprecated since version 2.0.0 and should not be used in newly-written code.</p></div>
</div>
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+<hr>Generated by GTK-Doc V1.32.1</div>
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