libharfbuzz-doc 1.0.1-1build2 / usr / share / gtk-doc / html / harfbuzz / harfbuzz-Shaping.html

This file is indexed.

/usr/share/gtk-doc/html/harfbuzz/harfbuzz-Shaping.html is in libharfbuzz-doc 1.0.1-1build2.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below. 

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Shaping: HarfBuzz Reference Manual</title>
<meta name="generator" content="DocBook XSL Stylesheets V1.78.1">
<link rel="home" href="index.html" title="HarfBuzz Reference Manual">
<link rel="up" href="ch01.html" title="[Insert title here]">
<link rel="prev" href="harfbuzz-hb-font.html" title="hb-font">
<link rel="next" href="harfbuzz-hb-version.html" title="hb-version">
<meta name="generator" content="GTK-Doc V1.24 (XML mode)">
<link rel="stylesheet" href="style.css" type="text/css">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="5"><tr valign="middle">
<td width="100%" align="left" class="shortcuts">
<a href="#" class="shortcut">Top</a><span id="nav_description">  <span class="dim">|</span> 
                  <a href="#harfbuzz-Shaping.description" class="shortcut">Description</a></span><span id="nav_hierarchy">  <span class="dim">|</span> 
                  <a href="#harfbuzz-Shaping.object-hierarchy" class="shortcut">Object Hierarchy</a></span>
</td>
<td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td>
<td><a accesskey="u" href="ch01.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td>
<td><a accesskey="p" href="harfbuzz-hb-font.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td>
<td><a accesskey="n" href="harfbuzz-hb-version.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td>
</tr></table>
<div class="refentry">
<a name="harfbuzz-Shaping"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="harfbuzz-Shaping.top_of_page"></a>Shaping</span></h2>
<p>Shaping — Conversion of text strings into positioned glyphs</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="harfbuzz-Shaping.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 class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-Shaping.html#hb-feature-from-string" title="hb_feature_from_string ()">hb_feature_from_string</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="harfbuzz-Shaping.html#hb-feature-to-string" title="hb_feature_to_string ()">hb_feature_to_string</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="harfbuzz-Shaping.html#hb-shape" title="hb_shape ()">hb_shape</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-Shaping.html#hb-shape-full" title="hb_shape_full ()">hb_shape_full</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">const <span class="returnvalue">char</span> **
</td>
<td class="function_name">
<a class="link" href="harfbuzz-Shaping.html#hb-shape-list-shapers" title="hb_shape_list_shapers ()">hb_shape_list_shapers</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<a name="hb-feature-t"></a><div class="refsect1">
<a name="harfbuzz-Shaping.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody><tr>
<td class="datatype_keyword"> </td>
<td class="function_name"><a class="link" href="harfbuzz-Shaping.html#hb-feature-t-struct" title="hb_feature_t">hb_feature_t</a></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="harfbuzz-Shaping.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen">    GBoxed
    <span class="lineart">╰──</span> hb_feature_t
</pre>
</div>
<div class="refsect1">
<a name="harfbuzz-Shaping.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include &lt;hb.h&gt;
</pre>
</div>
<div class="refsect1">
<a name="harfbuzz-Shaping.description"></a><h2>Description</h2>
<p>Shaping is the central operation of HarfBuzz. Shaping operates on buffers,
which are sequences of Unicode characters that use the same font and have
the same text direction, script and language. After shaping the buffer
contains the output glyphs and their positions.</p>
</div>
<div class="refsect1">
<a name="harfbuzz-Shaping.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="hb-feature-from-string"></a><h3>hb_feature_from_string ()</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_feature_from_string (<em class="parameter"><code>const <span class="type">char</span> *str</code></em>,
                        <em class="parameter"><code><span class="type">int</span> len</code></em>,
                        <em class="parameter"><code><a class="link" href="harfbuzz-Shaping.html#hb-feature-t"><span class="type">hb_feature_t</span></a> *feature</code></em>);</pre>
<p>Parses a string into a <a class="link" href="harfbuzz-Shaping.html#hb-feature-t"><span class="type">hb_feature_t</span></a>. If <em class="parameter"><code>len</code></em>
 is -1 then <em class="parameter"><code>str</code></em>
 is
<code class="literal">NULL</code>-terminated.</p>
<div class="refsect3">
<a name="id-1.2.9.9.2.5"></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>str</p></td>
<td class="parameter_description"><p> a string to parse. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=len][<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> uint8_t]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>len</p></td>
<td class="parameter_description"><p>length of <em class="parameter"><code>str</code></em>
, or -1 if string is nul-terminated</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>feature</p></td>
<td class="parameter_description"><p> the <a class="link" href="harfbuzz-Shaping.html#hb-feature-t"><span class="type">hb_feature_t</span></a> to initialize with the parsed values. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.9.9.2.6"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code> if <em class="parameter"><code>str</code></em>
is successfully parsed, <code class="literal">FALSE</code> otherwise</p>
</div>
<p class="since">Since: 0.9.5</p>
</div>
<hr>
<div class="refsect2">
<a name="hb-feature-to-string"></a><h3>hb_feature_to_string ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_feature_to_string (<em class="parameter"><code><a class="link" href="harfbuzz-Shaping.html#hb-feature-t"><span class="type">hb_feature_t</span></a> *feature</code></em>,
                      <em class="parameter"><code><span class="type">char</span> *buf</code></em>,
                      <em class="parameter"><code>unsigned <span class="type">int</span> size</code></em>);</pre>
<p>Converts a <a class="link" href="harfbuzz-Shaping.html#hb-feature-t"><span class="type">hb_feature_t</span></a> into a <code class="literal">NULL</code>-terminated string in the format
understood by <a class="link" href="harfbuzz-Shaping.html#hb-feature-from-string" title="hb_feature_from_string ()"><code class="function">hb_feature_from_string()</code></a>. The client in responsible for
allocating big enough size for <em class="parameter"><code>buf</code></em>
, 128 bytes is more than enough.</p>
<div class="refsect3">
<a name="id-1.2.9.9.3.5"></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>feature</p></td>
<td class="parameter_description"><p>an <a class="link" href="harfbuzz-Shaping.html#hb-feature-t"><span class="type">hb_feature_t</span></a> to convert</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>buf</p></td>
<td class="parameter_description"><p> output string. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=size][<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>size</p></td>
<td class="parameter_description"><p>the allocated size of <em class="parameter"><code>buf</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: 0.9.5</p>
</div>
<hr>
<div class="refsect2">
<a name="hb-shape"></a><h3>hb_shape ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_shape (<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>,
          <em class="parameter"><code><a class="link" href="harfbuzz-hb-buffer.html#hb-buffer-t"><span class="type">hb_buffer_t</span></a> *buffer</code></em>,
          <em class="parameter"><code>const <a class="link" href="harfbuzz-Shaping.html#hb-feature-t"><span class="type">hb_feature_t</span></a> *features</code></em>,
          <em class="parameter"><code>unsigned <span class="type">int</span> num_features</code></em>);</pre>
<p>Shapes <em class="parameter"><code>buffer</code></em>
 using <em class="parameter"><code>font</code></em>
 turning its Unicode characters content to
positioned glyphs. If <em class="parameter"><code>features</code></em>
 is not <code class="literal">NULL</code>, it will be used to control the
features applied during shaping.</p>
<div class="refsect3">
<a name="id-1.2.9.9.4.5"></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>font</p></td>
<td class="parameter_description"><p>an <a class="link" href="harfbuzz-hb-font.html#hb-font-t"><span class="type">hb_font_t</span></a> to use for shaping</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>buffer</p></td>
<td class="parameter_description"><p>an <a class="link" href="harfbuzz-hb-buffer.html#hb-buffer-t"><span class="type">hb_buffer_t</span></a> to shape</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>features</p></td>
<td class="parameter_description"><p> an array of user
specified <a class="link" href="harfbuzz-Shaping.html#hb-feature-t"><span class="type">hb_feature_t</span></a> or <code class="literal">NULL</code>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=num_features][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>num_features</p></td>
<td class="parameter_description"><p>the length of <em class="parameter"><code>features</code></em>
array</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.9.9.4.6"></a><h4>Returns</h4>
<p> <code class="literal">FALSE</code> if all shapers failed, <code class="literal">TRUE</code> otherwise</p>
</div>
<p class="since">Since: 1.0</p>
</div>
<hr>
<div class="refsect2">
<a name="hb-shape-full"></a><h3>hb_shape_full ()</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_shape_full (<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>,
               <em class="parameter"><code><a class="link" href="harfbuzz-hb-buffer.html#hb-buffer-t"><span class="type">hb_buffer_t</span></a> *buffer</code></em>,
               <em class="parameter"><code>const <a class="link" href="harfbuzz-Shaping.html#hb-feature-t"><span class="type">hb_feature_t</span></a> *features</code></em>,
               <em class="parameter"><code>unsigned <span class="type">int</span> num_features</code></em>,
               <em class="parameter"><code>const <span class="type">char</span> * const *shaper_list</code></em>);</pre>
<p>See <a class="link" href="harfbuzz-Shaping.html#hb-shape" title="hb_shape ()"><code class="function">hb_shape()</code></a> for details. If <em class="parameter"><code>shaper_list</code></em>
 is not <code class="literal">NULL</code>, the specified
shapers will be used in the given order, otherwise the default shapers list
will be used.</p>
<div class="refsect3">
<a name="id-1.2.9.9.5.5"></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>font</p></td>
<td class="parameter_description"><p>an <a class="link" href="harfbuzz-hb-font.html#hb-font-t"><span class="type">hb_font_t</span></a> to use for shaping</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>buffer</p></td>
<td class="parameter_description"><p>an <a class="link" href="harfbuzz-hb-buffer.html#hb-buffer-t"><span class="type">hb_buffer_t</span></a> to shape</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>features</p></td>
<td class="parameter_description"><p> an array of user
specified <a class="link" href="harfbuzz-Shaping.html#hb-feature-t"><span class="type">hb_feature_t</span></a> or <code class="literal">NULL</code>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=num_features][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>num_features</p></td>
<td class="parameter_description"><p>the length of <em class="parameter"><code>features</code></em>
array</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>shaper_list</p></td>
<td class="parameter_description"><p> a <code class="literal">NULL</code>-terminated
array of shapers to use or <code class="literal">NULL</code>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> zero-terminated=1][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.9.9.5.6"></a><h4>Returns</h4>
<p> <code class="literal">FALSE</code> if all shapers failed, <code class="literal">TRUE</code> otherwise</p>
</div>
<p class="since">Since: 0.9.2</p>
</div>
<hr>
<div class="refsect2">
<a name="hb-shape-list-shapers"></a><h3>hb_shape_list_shapers ()</h3>
<pre class="programlisting">const <span class="returnvalue">char</span> **
hb_shape_list_shapers (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Retrieves the list of shapers supported by HarfBuzz.</p>
<div class="refsect3">
<a name="id-1.2.9.9.6.5"></a><h4>Returns</h4>
<p> an array of
constant strings. </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="Parameter points to an array of items."><span class="acronym">array</span></acronym> zero-terminated=1]</span></p>
</div>
<p class="since">Since: 0.9.2</p>
</div>
</div>
<div class="refsect1">
<a name="harfbuzz-Shaping.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="hb-feature-t-struct"></a><h3>hb_feature_t</h3>
<pre class="programlisting">typedef struct {
  hb_tag_t      tag;
  uint32_t      value;
  unsigned int  start;
  unsigned int  end;
} hb_feature_t;
</pre>
</div>
</div>
</div>
<div class="footer">
<hr>Generated by GTK-Doc V1.24</div>
</body>
</html>

APT Browse - Built by Thomas Orozco.