<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>How it works</title><meta name="generator" content="DocBook XSL Stylesheets V1.76.1"><link rel="home" href="index.html" title="The ELinks Manual"><link rel="up" href="ch07.html" title="Chapter 7. URL Shortcuts in ELinks"><link rel="prev" href="ch07.html" title="Chapter 7. URL Shortcuts in ELinks"><link rel="next" href="ch07s03.html" title="Alternative URI rewriting mechanisms"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">How it works</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ch07.html">Prev</a> </td><th width="60%" align="center">Chapter 7. URL Shortcuts in ELinks</th><td width="20%" align="right"> <a accesskey="n" href="ch07s03.html">Next</a></td></tr></table><hr></div><div class="section" title="How it works"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="idp6617616"></a>How it works</h2></div></div></div><p>All the URI rewriting can be controlled by options in the <span class="emphasis"><em>protocol.rewrite</em></span> option tree.</p><p>In the case of <span class="emphasis"><em>sd</em></span>, a URI rewriting mechanism called <span class="emphasis"><em>dumb prefixes</em></span> is used. If protocol.rewrite.enable-dumb is true, ELinks looks at the contents of the protocol.rewrite.dumb.* tree, and if it finds option protocol.rewrite.dumb.sd, it will use its value as the target URI.</p><p>Therefore, more generally speaking, if ELinks looks at protocol.rewrite.dumb.<typed_string>, and if it exists, will replace the entered URI with it. These dumb prefixes can be used as a kind of alternative bookmark systen - if you want to have fast access to a certain site and you don't want to spend a while navigating the bookmarks manager, you can just fire up the Goto URL dialog, type the shortcut and there you go.</p><p>A dumb prefix can contain <span class="emphasis"><em>%c</em></span>, which will be replaced by the URI of the current document. This is used, for example, in the <span class="emphasis"><em>arc</em></span> dumb-prefix, which provides a shortcut to the Wayback machine at archive.org.</p><p>In the case of <span class="emphasis"><em>g</em></span>, a slightly different URI rewriting mechanism called <span class="emphasis"><em>smart prefixes</em></span> is used. If protocol.rewrite.enable-smart is true, ELinks looks at the contents of the protocol.rewrite.smart tree and, if it finds option protocol.rewrite.smart.g, it will use its value as the target URI.</p><p>The difference is that the smart prefixes can take arguments and reference them in the target URI. As with dumb prefixes, <span class="emphasis"><em>%c</em></span> in the URI means the current address. Additionally, <span class="emphasis"><em>%s</em></span> will be substituted by the whole string following the prefix (<span class="emphasis"><em>elinks</em></span> in the <span class="emphasis"><em>g</em></span> example above; <span class="emphasis"><em>%s</em></span> is by far the most frequently used expansion), while you can reference individual space-separated arguments with the codes <span class="emphasis"><em>%0</em></span> thru <span class="emphasis"><em>%9</em></span>. Finally, if you want a plain % to the resulting URI, use <span class="emphasis"><em>%%</em></span>.</p><p>Note that the prefix searched in the protocol.rewrite.smart tree is everything in the typed address up to the first space or colon (so <span class="emphasis"><em>bug:123</em></span> and <span class="emphasis"><em>bug 123</em></span> are identical). These prefixes are generally useful for searching anything very fast - be it Google (<span class="emphasis"><em>g:foo</em></span>, <span class="emphasis"><em>gi:foo</em></span>, <span class="emphasis"><em>gr:foo</em></span>, …), ELinks Bugzilla bugs (<span class="emphasis"><em>bug:1234</em></span>), the RFC database (<span class="emphasis"><em>cr:foo</em></span>), or the Czech-English dictionary (<span class="emphasis"><em>czen:foo</em></span>). The only limit is your imagination.</p></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="ch07.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ch07.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="ch07s03.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter 7. URL Shortcuts in ELinks </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> Alternative URI rewriting mechanisms</td></tr></table></div></body></html>
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