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Implement pdfioDictIterateKeys API (Issue #31)

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Michael R Sweet
2022-06-27 10:17:00 -04:00
parent ed4e2fc38a
commit f4b8983c61
6 changed files with 170 additions and 1 deletions
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doc/pdfio.html
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@@ -360,6 +360,7 @@ span.string {
<li><a href="#pdfioDictGetRect">pdfioDictGetRect</a></li>
<li><a href="#pdfioDictGetString">pdfioDictGetString</a></li>
<li><a href="#pdfioDictGetType">pdfioDictGetType</a></li>
<li><a href="#pdfioDictIterateKeys">pdfioDictIterateKeys</a></li>
<li><a href="#pdfioDictSetArray">pdfioDictSetArray</a></li>
<li><a href="#pdfioDictSetBinary">pdfioDictSetBinary</a></li>
<li><a href="#pdfioDictSetBoolean">pdfioDictSetBoolean</a></li>
@@ -443,6 +444,7 @@ span.string {
<li><a href="#TYPES">Data Types</a><ul class="subcontents">
<li><a href="#pdfio_array_t">pdfio_array_t</a></li>
<li><a href="#pdfio_cs_t">pdfio_cs_t</a></li>
<li><a href="#pdfio_dict_cb_t">pdfio_dict_cb_t</a></li>
<li><a href="#pdfio_dict_t">pdfio_dict_t</a></li>
<li><a href="#pdfio_encryption_t">pdfio_encryption_t</a></li>
<li><a href="#pdfio_error_cb_t">pdfio_error_cb_t</a></li>
@@ -2262,6 +2264,33 @@ const char *pdfioDictGetString(<a href="#pdfio_dict_t">pdfio_dict_t</a> *dict, c
</tbody></table>
<h4 class="returnvalue">Return Value</h4>
<p class="description">Value type</p>
<h3 class="function"><a id="pdfioDictIterateKeys">pdfioDictIterateKeys</a></h3>
<p class="description">Iterate the keys in a dictionary.</p>
<p class="code">
void pdfioDictIterateKeys(<a href="#pdfio_dict_t">pdfio_dict_t</a> *dict, <a href="#pdfio_dict_cb_t">pdfio_dict_cb_t</a> cb, void *cb_data);</p>
<h4 class="parameters">Parameters</h4>
<table class="list"><tbody>
<tr><th>dict</th>
<td class="description">Dictionary</td></tr>
<tr><th>cb</th>
<td class="description">Callback function</td></tr>
<tr><th>cb_data</th>
<td class="description">Callback data</td></tr>
</tbody></table>
<h4 class="discussion">Discussion</h4>
<p class="discussion">This function iterates the keys in a dictionary, calling the supplied
function &quot;cb&quot;:
<pre>
bool
my_dict_cb(pdfio_dict_t *dict, const char *key, void *cb_data)
{
... &quot;key&quot; contains the dictionary key ...
... return true to continue or false to stop ...
}
</pre>
The iteration continues as long as the callback returns <code>true</code> or all keys
have been iterated.</p>
<h3 class="function"><a id="pdfioDictSetArray">pdfioDictSetArray</a></h3>
<p class="description">Set a key array in a dictionary.</p>
<p class="code">
@@ -3514,6 +3543,11 @@ typedef struct _pdfio_array_s pdfio_array_t;
<p class="code">
typedef enum <a href="#pdfio_cs_e">pdfio_cs_e</a> pdfio_cs_t;
</p>
<h3 class="typedef"><a id="pdfio_dict_cb_t">pdfio_dict_cb_t</a></h3>
<p class="description">Dictionary iterator callback</p>
<p class="code">
typedef bool (*pdfio_dict_cb_t)(<a href="#pdfio_dict_t">pdfio_dict_t</a> *dict, const char *key, void *cb_data);
</p>
<h3 class="typedef"><a id="pdfio_dict_t">pdfio_dict_t</a></h3>
<p class="description">Key/value dictionary</p>
<p class="code">