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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<title>Sagui library: example_router_vars.c</title>
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<div class="headertitle"><div class="title">example_router_vars.c</div></div>
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<div class="contents">
<p>Simple example showing how to access the path variables of the router feature.</p>
<div class="fragment"><div class="line"><span class="comment">/* _</span></div>
<div class="line"><span class="comment"> * ___ __ _ __ _ _ _(_)</span></div>
<div class="line"><span class="comment"> * / __|/ _` |/ _` | | | | |</span></div>
<div class="line"><span class="comment"> * \__ \ (_| | (_| | |_| | |</span></div>
<div class="line"><span class="comment"> * |___/\__,_|\__, |\__,_|_|</span></div>
<div class="line"><span class="comment"> * |___/</span></div>
<div class="line"><span class="comment"> *</span></div>
<div class="line"><span class="comment"> * Cross-platform library which helps to develop web servers or frameworks.</span></div>
<div class="line"><span class="comment"> *</span></div>
<div class="line"><span class="comment"> * Copyright (C) 2016-2019 Silvio Clecio <[email protected]></span></div>
<div class="line"><span class="comment"> *</span></div>
<div class="line"><span class="comment"> * Sagui library is free software; you can redistribute it and/or</span></div>
<div class="line"><span class="comment"> * modify it under the terms of the GNU Lesser General Public</span></div>
<div class="line"><span class="comment"> * License as published by the Free Software Foundation; either</span></div>
<div class="line"><span class="comment"> * version 2.1 of the License, or (at your option) any later version.</span></div>
<div class="line"><span class="comment"> *</span></div>
<div class="line"><span class="comment"> * Sagui library is distributed in the hope that it will be useful,</span></div>
<div class="line"><span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span></div>
<div class="line"><span class="comment"> * Lesser General Public License for more details.</span></div>
<div class="line"><span class="comment"> *</span></div>
<div class="line"><span class="comment"> * You should have received a copy of the GNU Lesser General Public</span></div>
<div class="line"><span class="comment"> * License along with Sagui library; if not, write to the Free Software</span></div>
<div class="line"><span class="comment"> * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA</span></div>
<div class="line"><span class="comment"> */</span></div>
<div class="line"> </div>
<div class="line"><span class="preprocessor">#include <stdlib.h></span></div>
<div class="line"><span class="preprocessor">#include <stdio.h></span></div>
<div class="line"><span class="preprocessor">#include <<a class="code" href="sagui_8h.html">sagui.h</a>></span></div>
<div class="line"> </div>
<div class="line"><span class="comment">/* NOTE: Error checking has been omitted to make it clear. */</span></div>
<div class="line"> </div>
<div class="line"><span class="keyword">static</span> <span class="keywordtype">int</span> vars_iter_cb(__SG_UNUSED <span class="keywordtype">void</span> *cls, <span class="keyword">const</span> <span class="keywordtype">char</span> *name,</div>
<div class="line"> <span class="keyword">const</span> <span class="keywordtype">char</span> *val) {</div>
<div class="line"> fprintf(stdout, <span class="stringliteral">" %s: %s\n"</span>, name, val);</div>
<div class="line"> <span class="keywordflow">return</span> 0;</div>
<div class="line">}</div>
<div class="line"> </div>
<div class="line"><span class="keyword">static</span> <span class="keywordtype">void</span> route_cb(<span class="keywordtype">void</span> *cls, <span class="keyword">struct</span> <a id="_a0" name="_a0"></a><a class="code hl_struct" href="structsg__route.html">sg_route</a> *route) {</div>
<div class="line"> fprintf(stdout, <span class="stringliteral">"%s: %s\n"</span>, <a id="a1" name="a1"></a><a class="code hl_function" href="group__sg__routing.html#ga665e84d03cb1957013938ee5d665da86">sg_route_path</a>(route), (<span class="keyword">const</span> <span class="keywordtype">char</span> *) cls);</div>
<div class="line"> <a id="a2" name="a2"></a><a class="code hl_function" href="group__sg__routing.html#gacba727ceb5d0716f41976f5e4449fbc1">sg_route_vars_iter</a>(route, vars_iter_cb, NULL);</div>
<div class="line">}</div>
<div class="line"> </div>
<div class="line"><span class="keywordtype">int</span> main(<span class="keywordtype">void</span>) {</div>
<div class="line"> <span class="keyword">struct </span><a id="_a3" name="_a3"></a><a class="code hl_struct" href="structsg__router.html">sg_router</a> *router;</div>
<div class="line"> <span class="keyword">struct </span><a class="code hl_struct" href="structsg__route.html">sg_route</a> *routes = NULL;</div>
<div class="line"> <a id="a4" name="a4"></a><a class="code hl_function" href="group__sg__routing.html#gac068a83f7f83a2d722cde42da261ed15">sg_routes_add</a>(&routes, <span class="stringliteral">"/foo/bar"</span>, route_cb, <span class="stringliteral">"foo-bar-data"</span>);</div>
<div class="line"> <a class="code hl_function" href="group__sg__routing.html#gac068a83f7f83a2d722cde42da261ed15">sg_routes_add</a>(&routes, <span class="stringliteral">"/bar"</span>, route_cb, <span class="stringliteral">"bar-data"</span>);</div>
<div class="line"> <a class="code hl_function" href="group__sg__routing.html#gac068a83f7f83a2d722cde42da261ed15">sg_routes_add</a>(&routes, <span class="stringliteral">"/customer/(?P<name>[a-zA-Z]+)"</span>, route_cb,</div>
<div class="line"> <span class="stringliteral">"customer-data"</span>);</div>
<div class="line"> <a class="code hl_function" href="group__sg__routing.html#gac068a83f7f83a2d722cde42da261ed15">sg_routes_add</a>(&routes, <span class="stringliteral">"/product/(?P<id>[0-9]+)"</span>, route_cb, <span class="stringliteral">"product-data"</span>);</div>
<div class="line"> <a class="code hl_function" href="group__sg__routing.html#gac068a83f7f83a2d722cde42da261ed15">sg_routes_add</a>(&routes, <span class="stringliteral">"/employee/(?P<id>[0-9]+)/[a|i]"</span>, route_cb,</div>
<div class="line"> <span class="stringliteral">"employee-data"</span>);</div>
<div class="line"> router = <a id="a5" name="a5"></a><a class="code hl_function" href="group__sg__routing.html#gaa7841a69298f7936356a2207f07c90e2">sg_router_new</a>(routes);</div>
<div class="line"> <a id="a6" name="a6"></a><a class="code hl_function" href="group__sg__routing.html#ga20914c40040042aab8f0e6edf9a750ca">sg_router_dispatch</a>(router, <span class="stringliteral">"/foo/bar"</span>, NULL);</div>
<div class="line"> fprintf(stdout, <span class="stringliteral">"---\n"</span>);</div>
<div class="line"> <a class="code hl_function" href="group__sg__routing.html#ga20914c40040042aab8f0e6edf9a750ca">sg_router_dispatch</a>(router, <span class="stringliteral">"/customer/Torvalds"</span>, NULL);</div>
<div class="line"> fprintf(stdout, <span class="stringliteral">"---\n"</span>);</div>
<div class="line"> <a class="code hl_function" href="group__sg__routing.html#ga20914c40040042aab8f0e6edf9a750ca">sg_router_dispatch</a>(router, <span class="stringliteral">"/product/123"</span>, NULL);</div>
<div class="line"> fprintf(stdout, <span class="stringliteral">"---\n"</span>);</div>
<div class="line"> <a class="code hl_function" href="group__sg__routing.html#ga20914c40040042aab8f0e6edf9a750ca">sg_router_dispatch</a>(router, <span class="stringliteral">"/employee/123/i"</span>, NULL);</div>
<div class="line"> <a id="a7" name="a7"></a><a class="code hl_function" href="group__sg__routing.html#ga5ee260ff563559b8d83dd6623fbea966">sg_routes_cleanup</a>(&routes);</div>
<div class="line"> <a id="a8" name="a8"></a><a class="code hl_function" href="group__sg__routing.html#gacab84dc3bbc69dd4b1ebd1931b22f0f7">sg_router_free</a>(router);</div>
<div class="line"> fflush(stdout);</div>
<div class="line"> <span class="keywordflow">return</span> EXIT_SUCCESS;</div>
<div class="line">}</div>
<div class="ttc" id="agroup__sg__routing_html_ga20914c40040042aab8f0e6edf9a750ca"><div class="ttname"><a href="group__sg__routing.html#ga20914c40040042aab8f0e6edf9a750ca">sg_router_dispatch</a></div><div class="ttdeci">int sg_router_dispatch(struct sg_router *router, const char *path, void *user_data)</div></div>
<div class="ttc" id="agroup__sg__routing_html_ga5ee260ff563559b8d83dd6623fbea966"><div class="ttname"><a href="group__sg__routing.html#ga5ee260ff563559b8d83dd6623fbea966">sg_routes_cleanup</a></div><div class="ttdeci">int sg_routes_cleanup(struct sg_route **routes)</div></div>
<div class="ttc" id="agroup__sg__routing_html_ga665e84d03cb1957013938ee5d665da86"><div class="ttname"><a href="group__sg__routing.html#ga665e84d03cb1957013938ee5d665da86">sg_route_path</a></div><div class="ttdeci">const char * sg_route_path(struct sg_route *route)</div></div>
<div class="ttc" id="agroup__sg__routing_html_gaa7841a69298f7936356a2207f07c90e2"><div class="ttname"><a href="group__sg__routing.html#gaa7841a69298f7936356a2207f07c90e2">sg_router_new</a></div><div class="ttdeci">struct sg_router * sg_router_new(struct sg_route *routes) __attribute__((malloc))</div></div>
<div class="ttc" id="agroup__sg__routing_html_gac068a83f7f83a2d722cde42da261ed15"><div class="ttname"><a href="group__sg__routing.html#gac068a83f7f83a2d722cde42da261ed15">sg_routes_add</a></div><div class="ttdeci">bool sg_routes_add(struct sg_route **routes, const char *pattern, sg_route_cb cb, void *cls)</div></div>
<div class="ttc" id="agroup__sg__routing_html_gacab84dc3bbc69dd4b1ebd1931b22f0f7"><div class="ttname"><a href="group__sg__routing.html#gacab84dc3bbc69dd4b1ebd1931b22f0f7">sg_router_free</a></div><div class="ttdeci">void sg_router_free(struct sg_router *router)</div></div>
<div class="ttc" id="agroup__sg__routing_html_gacba727ceb5d0716f41976f5e4449fbc1"><div class="ttname"><a href="group__sg__routing.html#gacba727ceb5d0716f41976f5e4449fbc1">sg_route_vars_iter</a></div><div class="ttdeci">int sg_route_vars_iter(struct sg_route *route, sg_vars_iter_cb cb, void *cls)</div></div>
<div class="ttc" id="asagui_8h_html"><div class="ttname"><a href="sagui_8h.html">sagui.h</a></div></div>
<div class="ttc" id="astructsg__route_html"><div class="ttname"><a href="structsg__route.html">sg_route</a></div></div>
<div class="ttc" id="astructsg__router_html"><div class="ttname"><a href="structsg__router.html">sg_router</a></div></div>
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