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update docs for bumplibp2p
2023-10-04 16:04:54 +00:00
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<h1 class="title">libp2p/multibase</h1>
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<ul class="simple simple-toc" id="toc-list">
<li>
<details open>
<summary><a class="reference reference-toplevel" href="#7" id="57">Types</a></summary>
<ul class="simple simple-toc-section">
<li><a class="reference" href="#MultiBase" title="MultiBase = object">MultiBase</a></li>
<li><a class="reference" href="#MultiBaseStatus" title="MultiBaseStatus {.pure.} = enum
Error, Success, Overrun, Incorrect, BadCodec, NotSupported">MultiBaseStatus</a></li>
</ul>
</details>
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<details open>
<summary><a class="reference reference-toplevel" href="#12" id="62">Procs</a></summary>
<ul class="simple simple-toc-section">
<ul class="simple nested-toc-section">decode
<li><a class="reference" href="#decode%2Ctypedesc%5BMultiBase%5D%2CopenArray%5Bchar%5D" title="decode(mbtype: typedesc[MultiBase]; inbytes: openArray[char]): Result[seq[byte],
string]">decode(mbtype: typedesc[MultiBase]; inbytes: openArray[char]): Result[seq[byte],
string]</a></li>
<li><a class="reference" href="#decode%2Ctypedesc%5BMultiBase%5D%2CopenArray%5Bchar%5D%2CopenArray%5Bbyte%5D%2Cint" title="decode(mbtype: typedesc[MultiBase]; inbytes: openArray[char];
outbytes: var openArray[byte]; outlen: var int): MultiBaseStatus">decode(mbtype: typedesc[MultiBase]; inbytes: openArray[char];
outbytes: var openArray[byte]; outlen: var int): MultiBaseStatus</a></li>
</ul>
<ul class="simple nested-toc-section">decodedLength
<li><a class="reference" href="#decodedLength%2Ctypedesc%5BMultiBase%5D%2Cchar%2Cint" title="decodedLength(mbtype: typedesc[MultiBase]; encoding: char; length: int): int">decodedLength(mbtype: typedesc[MultiBase]; encoding: char; length: int): int</a></li>
</ul>
<ul class="simple nested-toc-section">encode
<li><a class="reference" href="#encode%2Ctypedesc%5BMultiBase%5D%2Cstring%2CopenArray%5Bbyte%5D" title="encode(mbtype: typedesc[MultiBase]; encoding: string; inbytes: openArray[byte]): Result[
string, string]">encode(mbtype: typedesc[MultiBase]; encoding: string; inbytes: openArray[byte]): Result[
string, string]</a></li>
<li><a class="reference" href="#encode%2Ctypedesc%5BMultiBase%5D%2Cstring%2CopenArray%5Bbyte%5D%2CopenArray%5Bchar%5D%2Cint" title="encode(mbtype: typedesc[MultiBase]; encoding: string; inbytes: openArray[byte];
outbytes: var openArray[char]; outlen: var int): MultiBaseStatus">encode(mbtype: typedesc[MultiBase]; encoding: string; inbytes: openArray[byte];
outbytes: var openArray[char]; outlen: var int): MultiBaseStatus</a></li>
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<ul class="simple nested-toc-section">encodedLength
<li><a class="reference" href="#encodedLength%2Ctypedesc%5BMultiBase%5D%2Cstring%2Cint" title="encodedLength(mbtype: typedesc[MultiBase]; encoding: string; length: int): int">encodedLength(mbtype: typedesc[MultiBase]; encoding: string; length: int): int</a></li>
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<div class="nine columns" id="content">
<a href="https://github.com/status-im/nim-libp2p/tree/bumplibp2p/libp2p/multibase.nim#L1" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multibase.nim#L1" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
<div id="tocRoot"></div>
<p class="module-desc"><p>This module implements MultiBase.</p>
<p>TODO:</p>
<ol class="simple"><li>base32z</li>
</ol>
</p>
<div class="section" id="7">
<h1><a class="toc-backref" href="#7">Types</a></h1>
<dl class="item">
<div id="MultiBase" class="tohide">
<dt><pre><a href="multibase.html#MultiBase"><span class="Identifier">MultiBase</span></a> <span class="Other">=</span> <span class="Keyword">object</span></pre></dt>
<dd>
<a href="https://github.com/status-im/nim-libp2p/tree/bumplibp2p/libp2p/multibase.nim#L25" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multibase.nim#L25" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
</dd>
</div>
<div id="MultiBaseStatus" class="tohide">
<dt><pre><a href="multibase.html#MultiBaseStatus"><span class="Identifier">MultiBaseStatus</span></a> {.<span class="Identifier">pure</span>.} <span class="Other">=</span> <span class="Keyword">enum</span>
<span class="Identifier">Error</span><span class="Other">,</span> <span class="Identifier">Success</span><span class="Other">,</span> <span class="Identifier">Overrun</span><span class="Other">,</span> <span class="Identifier">Incorrect</span><span class="Other">,</span> <span class="Identifier">BadCodec</span><span class="Other">,</span> <span class="Identifier">NotSupported</span></pre></dt>
<dd>
<a href="https://github.com/status-im/nim-libp2p/tree/bumplibp2p/libp2p/multibase.nim#L22" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multibase.nim#L22" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
</dd>
</div>
</dl>
</div>
<div class="section" id="12">
<h1><a class="toc-backref" href="#12">Procs</a></h1>
<dl class="item">
<div id="decode-procs-all">
<div id="decode,typedesc[MultiBase],openArray[char]" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#decode%2Ctypedesc%5BMultiBase%5D%2CopenArray%5Bchar%5D"><span class="Identifier">decode</span></a><span class="Other">(</span><span class="Identifier">mbtype</span><span class="Other">:</span> <span class="Identifier">typedesc</span><span class="Other">[</span><a href="multibase.html#MultiBase"><span class="Identifier">MultiBase</span></a><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">inbytes</span><span class="Other">:</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">char</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">Result</span><span class="Other">[</span>
<span class="Identifier">seq</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">string</span><span class="Other">]</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
Decode MultiBase encoded array <tt class="docutils literal"><span class="pre">inbytes</span></tt> and return decoded sequence of bytes.
<a href="https://github.com/status-im/nim-libp2p/tree/bumplibp2p/libp2p/multibase.nim#L465" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multibase.nim#L465" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
</dd>
</div>
<div id="decode,typedesc[MultiBase],openArray[char],openArray[byte],int" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#decode%2Ctypedesc%5BMultiBase%5D%2CopenArray%5Bchar%5D%2CopenArray%5Bbyte%5D%2Cint"><span class="Identifier">decode</span></a><span class="Other">(</span><span class="Identifier">mbtype</span><span class="Other">:</span> <span class="Identifier">typedesc</span><span class="Other">[</span><a href="multibase.html#MultiBase"><span class="Identifier">MultiBase</span></a><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">inbytes</span><span class="Other">:</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">char</span><span class="Other">]</span><span class="Other">;</span>
<span class="Identifier">outbytes</span><span class="Other">:</span> <span class="Keyword">var</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">outlen</span><span class="Other">:</span> <span class="Keyword">var</span> <span class="Identifier">int</span><span class="Other">)</span><span class="Other">:</span> <a href="multibase.html#MultiBaseStatus"><span class="Identifier">MultiBaseStatus</span></a> {.
<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
<p>Decode array <tt class="docutils literal"><span class="pre">inbytes</span></tt> using MultiBase encoding and store decoded value to <tt class="docutils literal"><span class="pre">outbytes</span></tt>.</p>
<p>If <tt class="docutils literal"><span class="pre">inbytes</span></tt> is not correct MultiBase string, then <tt class="docutils literal"><span class="pre">MultiBaseStatus.BadCodec</span></tt> if first character is wrong, or <tt class="docutils literal"><span class="pre">MultiBaseStatus.Incorrect</span></tt> if string has incorrect characters for such encoding.</p>
<p>If length of <tt class="docutils literal"><span class="pre">outbytes</span></tt> is not enough to store decoded result, then <tt class="docutils literal"><span class="pre">MultiBaseStatus.Overrun</span></tt> error will be returned and <tt class="docutils literal"><span class="pre">outlen</span></tt> will be set to length required.</p>
<p>On successfull decoding <tt class="docutils literal"><span class="pre">MultiBaseStatus.Success</span></tt> will be returned and <tt class="docutils literal"><span class="pre">outlen</span></tt> will be set to number of encoded octets (bytes).</p>
<a href="https://github.com/status-im/nim-libp2p/tree/bumplibp2p/libp2p/multibase.nim#L411" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multibase.nim#L411" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
</dd>
</div>
</div>
<div id="decodedLength-procs-all">
<div id="decodedLength,typedesc[MultiBase],char,int" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#decodedLength%2Ctypedesc%5BMultiBase%5D%2Cchar%2Cint"><span class="Identifier">decodedLength</span></a><span class="Other">(</span><span class="Identifier">mbtype</span><span class="Other">:</span> <span class="Identifier">typedesc</span><span class="Other">[</span><a href="multibase.html#MultiBase"><span class="Identifier">MultiBase</span></a><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">encoding</span><span class="Other">:</span> <span class="Identifier">char</span><span class="Other">;</span> <span class="Identifier">length</span><span class="Other">:</span> <span class="Identifier">int</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">int</span> {.
<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
Return estimated size of buffer to store MultiBase decoded value with encoding character <tt class="docutils literal"><span class="pre">encoding</span></tt> of length <tt class="docutils literal"><span class="pre">length</span></tt>.
<a href="https://github.com/status-im/nim-libp2p/tree/bumplibp2p/libp2p/multibase.nim#L358" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multibase.nim#L358" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
</dd>
</div>
</div>
<div id="encode-procs-all">
<div id="encode,typedesc[MultiBase],string,openArray[byte]" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#encode%2Ctypedesc%5BMultiBase%5D%2Cstring%2CopenArray%5Bbyte%5D"><span class="Identifier">encode</span></a><span class="Other">(</span><span class="Identifier">mbtype</span><span class="Other">:</span> <span class="Identifier">typedesc</span><span class="Other">[</span><a href="multibase.html#MultiBase"><span class="Identifier">MultiBase</span></a><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">encoding</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">;</span>
<span class="Identifier">inbytes</span><span class="Other">:</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">Result</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">,</span> <span class="Identifier">string</span><span class="Other">]</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
Encode array <tt class="docutils literal"><span class="pre">inbytes</span></tt> using MultiBase encoding scheme <tt class="docutils literal"><span class="pre">encoding</span></tt> and return encoded string.
<a href="https://github.com/status-im/nim-libp2p/tree/bumplibp2p/libp2p/multibase.nim#L441" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multibase.nim#L441" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
</dd>
</div>
<div id="encode,typedesc[MultiBase],string,openArray[byte],openArray[char],int" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#encode%2Ctypedesc%5BMultiBase%5D%2Cstring%2CopenArray%5Bbyte%5D%2CopenArray%5Bchar%5D%2Cint"><span class="Identifier">encode</span></a><span class="Other">(</span><span class="Identifier">mbtype</span><span class="Other">:</span> <span class="Identifier">typedesc</span><span class="Other">[</span><a href="multibase.html#MultiBase"><span class="Identifier">MultiBase</span></a><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">encoding</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">;</span>
<span class="Identifier">inbytes</span><span class="Other">:</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">outbytes</span><span class="Other">:</span> <span class="Keyword">var</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">char</span><span class="Other">]</span><span class="Other">;</span>
<span class="Identifier">outlen</span><span class="Other">:</span> <span class="Keyword">var</span> <span class="Identifier">int</span><span class="Other">)</span><span class="Other">:</span> <a href="multibase.html#MultiBaseStatus"><span class="Identifier">MultiBaseStatus</span></a> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
<p>Encode array <tt class="docutils literal"><span class="pre">inbytes</span></tt> using MultiBase encoding scheme <tt class="docutils literal"><span class="pre">encoding</span></tt> and store encoded value to <tt class="docutils literal"><span class="pre">outbytes</span></tt>.</p>
<p>If <tt class="docutils literal"><span class="pre">encoding</span></tt> is not supported <tt class="docutils literal"><span class="pre">MultiBaseStatus.NotSupported</span></tt> will be returned.</p>
<p>If <tt class="docutils literal"><span class="pre">encoding</span></tt> is not correct string, then <tt class="docutils literal"><span class="pre">MultBaseStatus.BadCodec</span></tt> will be returned.</p>
<p>If length of <tt class="docutils literal"><span class="pre">outbytes</span></tt> is not enough to store encoded result, then <tt class="docutils literal"><span class="pre">MultiBaseStatus.Overrun</span></tt> error will be returned and <tt class="docutils literal"><span class="pre">outlen</span></tt> will be set to length required.</p>
<p>On successfull encoding <tt class="docutils literal"><span class="pre">MultiBaseStatus.Success</span></tt> will be returned and <tt class="docutils literal"><span class="pre">outlen</span></tt> will be set to number of encoded octets (bytes).</p>
<a href="https://github.com/status-im/nim-libp2p/tree/bumplibp2p/libp2p/multibase.nim#L371" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multibase.nim#L371" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
</dd>
</div>
</div>
<div id="encodedLength-procs-all">
<div id="encodedLength,typedesc[MultiBase],string,int" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#encodedLength%2Ctypedesc%5BMultiBase%5D%2Cstring%2Cint"><span class="Identifier">encodedLength</span></a><span class="Other">(</span><span class="Identifier">mbtype</span><span class="Other">:</span> <span class="Identifier">typedesc</span><span class="Other">[</span><a href="multibase.html#MultiBase"><span class="Identifier">MultiBase</span></a><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">encoding</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">;</span> <span class="Identifier">length</span><span class="Other">:</span> <span class="Identifier">int</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">int</span> {.
<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
<p>Return estimated size of buffer to store MultiBase encoded value with encoding <tt class="docutils literal"><span class="pre">encoding</span></tt> of length <tt class="docutils literal"><span class="pre">length</span></tt>.</p>
<p>Procedure returns <tt class="docutils literal"><span class="pre">-1</span></tt> if <tt class="docutils literal"><span class="pre">encoding</span></tt> scheme is not supported or not present.</p>
<a href="https://github.com/status-im/nim-libp2p/tree/bumplibp2p/libp2p/multibase.nim#L342" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multibase.nim#L342" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
</dd>
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