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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
<title>URL</title>
<link href="doxygen.css" rel="stylesheet" type="text/css">
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<a href="" class="back" onclick="history.back();return false;">⬅</a>
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<div id="nav-path" class="navpath">
<ul>
<li class="navelem"><a class="el" href="namespacezdb.html">zdb</a></li><li class="navelem"><a class="el" href="classzdb_1_1URL.html">URL</a></li> </ul>
</div>
</div><!-- top -->
<div id="doc-content">
<div class="header">
<div class="summary">
<a href="#pub-methods">Public Member Functions</a> </div>
<div class="headertitle"><div class="title">URL</div></div>
</div><!--header-->
<div class="contents">
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Represents an immutable Uniform Resource Locator. </p>
<p>A Uniform Resource Locator (<a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a>), is used to uniquely identify a resource on the Internet. The <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a> is a compact text string with a restricted syntax that consists of four main components:</p>
<div class="fragment"><div class="line"><a class="code hl_function" href="#a41eb9f7d8fe3126dd8fe85522c5590cf">protocol</a>:<span class="comment">//<authority><path><query></span></div>
<div class="ttc" id="aclasszdb_1_1URL_html_a41eb9f7d8fe3126dd8fe85522c5590cf"><div class="ttname"><a href="#a41eb9f7d8fe3126dd8fe85522c5590cf">zdb::URL::protocol</a></div><div class="ttdeci">constexpr std::string_view protocol() const noexcept</div><div class="ttdoc">Gets the protocol of the URL.</div><div class="ttdef"><b>Definition</b> zdbpp.h:400</div></div>
</div><!-- fragment --><p>The <code>protocol</code> part is mandatory, the other components may or may not be present in an <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a> string. For instance the <code>file</code> protocol only use the path component while a <code>http</code> protocol may use all components.</p>
<p>The following <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a> components are automatically unescaped according to the escaping mechanism defined in RFC 2396; <code>credentials</code>, <code>path</code> and parameter <code>values</code>. If you use a password with non-URL safe characters, you must <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a> escape the value.</p>
<p>An <em>IPv6 address</em> can be used for host as defined in <a href="https://www.ietf.org/rfc/rfc2732.txt">RFC2732</a> by enclosing the address in [brackets]. For instance, <code>mysql://[2010:836B:4179::836B:4179]:3306/test</code></p>
<p>For more information about the <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a> syntax and specification, see, <a href="https://www.ietf.org/rfc/rfc2396.txt">RFC2396 - Uniform Resource Identifiers (URI): Generic Syntax</a></p>
<h3><a class="anchor" id="autotoc_md38"></a>
Example:</h3>
<div class="fragment"><div class="line"><a class="code hl_class" href="classzdb_1_1URL.html">URL</a> url(<span class="stringliteral">"postgresql://user:password@example.com:5432/database?use-ssl=true"</span>);</div>
<div class="line"> </div>
<div class="line"><span class="comment">// Retrieve and print various components of the URL</span></div>
<div class="line">std::cout << <span class="stringliteral">"Protocol: "</span> << url.protocol() << std::endl;</div>
<div class="line">std::cout << <span class="stringliteral">"Host: "</span> << url.host().value_or(<span class="stringliteral">"Not specified"</span>) << std::endl;</div>
<div class="line">std::cout << <span class="stringliteral">"Port: "</span> << url.port() << std::endl;</div>
<div class="line">std::cout << <span class="stringliteral">"User: "</span> << url.user().value_or(<span class="stringliteral">"Not specified"</span>) << std::endl;</div>
<div class="line">std::cout << <span class="stringliteral">"Password: "</span> << (url.password().has_value() ? <span class="stringliteral">"Specified"</span> : <span class="stringliteral">"Not specified"</span>) << std::endl;</div>
<div class="line">std::cout << <span class="stringliteral">"Path: "</span> << url.path().value_or(<span class="stringliteral">"Not specified"</span>) << std::endl;</div>
<div class="line"> </div>
<div class="line"><span class="comment">// Get a specific parameter value</span></div>
<div class="line"><span class="keyword">auto</span> use_ssl = url.parameter(<span class="stringliteral">"use-ssl"</span>).value_or(<span class="stringliteral">"false"</span>);</div>
<div class="line">std::cout << <span class="stringliteral">"SSL Enabled: "</span> << (use_ssl == <span class="stringliteral">"true"</span>) << std::endl;</div>
<div class="ttc" id="aclasszdb_1_1URL_html"><div class="ttname"><a href="classzdb_1_1URL.html">zdb::URL</a></div><div class="ttdoc">Represents an immutable Uniform Resource Locator.</div><div class="ttdef"><b>Definition</b> zdbpp.h:331</div></div>
</div><!-- fragment --> </div>
<p>Represents an immutable Uniform Resource Locator.
<a href="#details">More...</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-methods" name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a2e2028cd480981c5a3e3db2fc050f85f" id="r_a2e2028cd480981c5a3e3db2fc050f85f"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#a2e2028cd480981c5a3e3db2fc050f85f">URL</a> (const std::string &url)</td></tr>
<tr class="memdesc:a2e2028cd480981c5a3e3db2fc050f85f"><td class="mdescLeft"> </td><td class="mdescRight">Creates a new <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a> object from the given <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a> string. <br /></td></tr>
<tr class="separator:a2e2028cd480981c5a3e3db2fc050f85f"><td class="memSeparator" colspan="2"> </td></tr>
<tr><td colspan="2"><div class="groupHeader">Properties</div></td></tr>
<tr class="memitem:a41eb9f7d8fe3126dd8fe85522c5590cf" id="r_a41eb9f7d8fe3126dd8fe85522c5590cf"><td class="memItemLeft" align="right" valign="top">constexpr std::string_view </td><td class="memItemRight" valign="bottom"><a class="el" href="#a41eb9f7d8fe3126dd8fe85522c5590cf">protocol</a> () const noexcept</td></tr>
<tr class="memdesc:a41eb9f7d8fe3126dd8fe85522c5590cf"><td class="mdescLeft"> </td><td class="mdescRight">Gets the protocol of the <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a>. <br /></td></tr>
<tr class="separator:a41eb9f7d8fe3126dd8fe85522c5590cf"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a6a31b14805ebc6738bdf1e53bcd165a6" id="r_a6a31b14805ebc6738bdf1e53bcd165a6"><td class="memItemLeft" align="right" valign="top">constexpr std::optional< std::string_view > </td><td class="memItemRight" valign="bottom"><a class="el" href="#a6a31b14805ebc6738bdf1e53bcd165a6">user</a> () const noexcept</td></tr>
<tr class="memdesc:a6a31b14805ebc6738bdf1e53bcd165a6"><td class="mdescLeft"> </td><td class="mdescRight">Gets the username from the <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a>'s authority part. <br /></td></tr>
<tr class="separator:a6a31b14805ebc6738bdf1e53bcd165a6"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:adf5541de767e23c96f10c306cb80dfa9" id="r_adf5541de767e23c96f10c306cb80dfa9"><td class="memItemLeft" align="right" valign="top">constexpr std::optional< std::string_view > </td><td class="memItemRight" valign="bottom"><a class="el" href="#adf5541de767e23c96f10c306cb80dfa9">password</a> () const noexcept</td></tr>
<tr class="memdesc:adf5541de767e23c96f10c306cb80dfa9"><td class="mdescLeft"> </td><td class="mdescRight">Gets the password from the <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a>'s authority part. <br /></td></tr>
<tr class="separator:adf5541de767e23c96f10c306cb80dfa9"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aafe4f5b8320ced30add2dcc7ac7ce859" id="r_aafe4f5b8320ced30add2dcc7ac7ce859"><td class="memItemLeft" align="right" valign="top">constexpr std::optional< std::string_view > </td><td class="memItemRight" valign="bottom"><a class="el" href="#aafe4f5b8320ced30add2dcc7ac7ce859">host</a> () const noexcept</td></tr>
<tr class="memdesc:aafe4f5b8320ced30add2dcc7ac7ce859"><td class="mdescLeft"> </td><td class="mdescRight">Gets the hostname of the <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a>. <br /></td></tr>
<tr class="separator:aafe4f5b8320ced30add2dcc7ac7ce859"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a1adfeb0b2d3f379b6bfe9fb72bb1847d" id="r_a1adfeb0b2d3f379b6bfe9fb72bb1847d"><td class="memItemLeft" align="right" valign="top">constexpr int </td><td class="memItemRight" valign="bottom"><a class="el" href="#a1adfeb0b2d3f379b6bfe9fb72bb1847d">port</a> () const noexcept</td></tr>
<tr class="memdesc:a1adfeb0b2d3f379b6bfe9fb72bb1847d"><td class="mdescLeft"> </td><td class="mdescRight">Gets the port of the <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a>. <br /></td></tr>
<tr class="separator:a1adfeb0b2d3f379b6bfe9fb72bb1847d"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab9aaaeee897c03771c9a3cf4111ce2da" id="r_ab9aaaeee897c03771c9a3cf4111ce2da"><td class="memItemLeft" align="right" valign="top">constexpr std::optional< std::string_view > </td><td class="memItemRight" valign="bottom"><a class="el" href="#ab9aaaeee897c03771c9a3cf4111ce2da">path</a> () const noexcept</td></tr>
<tr class="memdesc:ab9aaaeee897c03771c9a3cf4111ce2da"><td class="mdescLeft"> </td><td class="mdescRight">Gets the path of the <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a>. <br /></td></tr>
<tr class="separator:ab9aaaeee897c03771c9a3cf4111ce2da"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a485d9195bbc4dcdf8e4bc2a870f3d68e" id="r_a485d9195bbc4dcdf8e4bc2a870f3d68e"><td class="memItemLeft" align="right" valign="top">constexpr std::optional< std::string_view > </td><td class="memItemRight" valign="bottom"><a class="el" href="#a485d9195bbc4dcdf8e4bc2a870f3d68e">queryString</a> () const noexcept</td></tr>
<tr class="memdesc:a485d9195bbc4dcdf8e4bc2a870f3d68e"><td class="mdescLeft"> </td><td class="mdescRight">Gets the query string of the <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a>. <br /></td></tr>
<tr class="separator:a485d9195bbc4dcdf8e4bc2a870f3d68e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac3ade3365379ae8066b536a2996923fb" id="r_ac3ade3365379ae8066b536a2996923fb"><td class="memItemLeft" align="right" valign="top">std::vector< std::string_view > </td><td class="memItemRight" valign="bottom"><a class="el" href="#ac3ade3365379ae8066b536a2996923fb">parameterNames</a> () const noexcept</td></tr>
<tr class="memdesc:ac3ade3365379ae8066b536a2996923fb"><td class="mdescLeft"> </td><td class="mdescRight">Gets the names of parameters contained in this <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a>. <br /></td></tr>
<tr class="separator:ac3ade3365379ae8066b536a2996923fb"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac448c0ddc66877106a333b852388c914" id="r_ac448c0ddc66877106a333b852388c914"><td class="memItemLeft" align="right" valign="top">std::optional< std::string_view > </td><td class="memItemRight" valign="bottom"><a class="el" href="#ac448c0ddc66877106a333b852388c914">parameter</a> (const std::string &name) const noexcept</td></tr>
<tr class="memdesc:ac448c0ddc66877106a333b852388c914"><td class="mdescLeft"> </td><td class="mdescRight">Gets the value of the specified <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a> parameter. <br /></td></tr>
<tr class="separator:ac448c0ddc66877106a333b852388c914"><td class="memSeparator" colspan="2"> </td></tr>
<tr><td colspan="2"><div class="groupHeader">Functions</div></td></tr>
<tr class="memitem:a86e196147f0087c1998d05fe808aea2d" id="r_a86e196147f0087c1998d05fe808aea2d"><td class="memItemLeft" align="right" valign="top">constexpr std::string_view </td><td class="memItemRight" valign="bottom"><a class="el" href="#a86e196147f0087c1998d05fe808aea2d">toString</a> () const noexcept</td></tr>
<tr class="memdesc:a86e196147f0087c1998d05fe808aea2d"><td class="mdescLeft"> </td><td class="mdescRight">Returns a string representation of this <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a> object. <br /></td></tr>
<tr class="separator:a86e196147f0087c1998d05fe808aea2d"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<h2 class="groupheader">Constructor & Destructor Documentation</h2>
<a id="a2e2028cd480981c5a3e3db2fc050f85f" name="a2e2028cd480981c5a3e3db2fc050f85f"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a2e2028cd480981c5a3e3db2fc050f85f">◆ </a></span>URL()</h2>
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<td class="memname"><a class="el" href="classzdb_1_1URL.html">URL</a> </td>
<td>(</td>
<td class="paramtype">const std::string &</td> <td class="paramname"><span class="paramname"><em>url</em></span></td><td>)</td>
<td></td>
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<span class="mlabels"><span class="mlabel">explicit</span></span> </td>
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<p>Creates a new <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a> object from the given <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a> string. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">url</td><td>A string specifying the <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a>. </td></tr>
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<dl class="exception"><dt>Exceptions</dt><dd>
<table class="exception">
<tr><td class="paramname"><a class="el" href="classzdb_1_1sql__exception.html" title="Exception class for SQL related errors.">sql_exception</a></td><td>if the <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a> cannot be parsed. </td></tr>
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<h2 class="groupheader">Member Function Documentation</h2>
<a id="a41eb9f7d8fe3126dd8fe85522c5590cf" name="a41eb9f7d8fe3126dd8fe85522c5590cf"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a41eb9f7d8fe3126dd8fe85522c5590cf">◆ </a></span>protocol()</h2>
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<td class="memname">std::string_view protocol </td>
<td>(</td>
<td class="paramname"><span class="paramname"><em></em></span></td><td>)</td>
<td> const</td>
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<p>Gets the protocol of the <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a>. </p>
<dl class="section return"><dt>Returns</dt><dd>The protocol name. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a6a31b14805ebc6738bdf1e53bcd165a6">◆ </a></span>user()</h2>
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<td class="memname">std::optional< std::string_view > user </td>
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<td> const</td>
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<p>Gets the username from the <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a>'s authority part. </p>
<dl class="section return"><dt>Returns</dt><dd>An optional containing the username or std::nullopt if not found. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#adf5541de767e23c96f10c306cb80dfa9">◆ </a></span>password()</h2>
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<td class="memname">std::optional< std::string_view > password </td>
<td>(</td>
<td class="paramname"><span class="paramname"><em></em></span></td><td>)</td>
<td> const</td>
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<p>Gets the password from the <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a>'s authority part. </p>
<dl class="section return"><dt>Returns</dt><dd>An optional containing the password or std::nullopt if not found. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#aafe4f5b8320ced30add2dcc7ac7ce859">◆ </a></span>host()</h2>
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<td class="memname">std::optional< std::string_view > host </td>
<td>(</td>
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<td> const</td>
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<p>Gets the hostname of the <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a>. </p>
<dl class="section return"><dt>Returns</dt><dd>An optional containing the hostname or std::nullopt if not found. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a1adfeb0b2d3f379b6bfe9fb72bb1847d">◆ </a></span>port()</h2>
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<td class="memname">int port </td>
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<td> const</td>
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<p>Gets the port of the <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a>. </p>
<dl class="section return"><dt>Returns</dt><dd>The port number of the <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a> or -1 if not specified. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ab9aaaeee897c03771c9a3cf4111ce2da">◆ </a></span>path()</h2>
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<td> const</td>
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<p>Gets the path of the <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a>. </p>
<dl class="section return"><dt>Returns</dt><dd>An optional containing the path or std::nullopt if not found. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a485d9195bbc4dcdf8e4bc2a870f3d68e">◆ </a></span>queryString()</h2>
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<td class="memname">std::optional< std::string_view > queryString </td>
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<td class="paramname"><span class="paramname"><em></em></span></td><td>)</td>
<td> const</td>
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<p>Gets the query string of the <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a>. </p>
<dl class="section return"><dt>Returns</dt><dd>An optional containing the query string or std::nullopt if not found. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ac3ade3365379ae8066b536a2996923fb">◆ </a></span>parameterNames()</h2>
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<td class="memname">std::vector< std::string_view > parameterNames </td>
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<td> const</td>
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<p>Gets the names of parameters contained in this <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a>. </p>
<dl class="section return"><dt>Returns</dt><dd>A vector of parameter names, or an empty vector if no parameters. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ac448c0ddc66877106a333b852388c914">◆ </a></span>parameter()</h2>
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<td class="memname">std::optional< std::string_view > parameter </td>
<td>(</td>
<td class="paramtype">const std::string &</td> <td class="paramname"><span class="paramname"><em>name</em></span></td><td>)</td>
<td> const</td>
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<p>Gets the value of the specified <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a> parameter. </p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">name</td><td>The parameter name to lookup. </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>An optional containing the parameter value, or std::nullopt if not found. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a86e196147f0087c1998d05fe808aea2d">◆ </a></span>toString()</h2>
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<td> const</td>
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<p>Returns a string representation of this <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a> object. </p>
<dl class="section return"><dt>Returns</dt><dd>The <a class="el" href="classzdb_1_1URL.html" title="Represents an immutable Uniform Resource Locator.">URL</a> string. </dd></dl>
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