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path: root/commands/msgview/msgview.go
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package msgview

import (
	"git.sr.ht/~sircmpwn/aerc/commands"
)

var (
	MessageViewCommands *commands.Commands
)

func register(name string, cmd commands.AercCommand) {
	if MessageViewCommands == nil {
		MessageViewCommands = commands.NewCommands()
	}
	MessageViewCommands.Register(name, cmd)
}
committer Kartik K. Agaram <vc@akkartik.com> 2017-11-25 10:17:23 -0800 4133' href='/akkartik/mu/commit/html/continuation5.mu.html?h=main&id=ef7d834fdd826977cd8d43253052a7b8e1c5aa72'>ef7d834f ^
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<a href='https://github.com/akkartik/mu/blob/master/continuation5.mu'>https://github.com/akkartik/mu/blob/master/continuation5.mu</a>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr"> 1 </span><span class="Comment"># Example program showing that a 'paused' continuation can be 'resumed' with</span>
<span id="L2" class="LineNr"> 2 </span><span class="Comment"># inputs.</span>
<span id="L3" class="LineNr"> 3 </span><span class="Comment">#</span>
<span id="L4" class="LineNr"> 4 </span><span class="Comment"># Print out a list of numbers, first adding 0 to the first, 1 to the second, 2</span>
<span id="L5" class="LineNr"> 5 </span><span class="Comment"># to the third, and so on.</span>
<span id="L6" class="LineNr"> 6 </span><span class="Comment">#</span>
<span id="L7" class="LineNr"> 7 </span><span class="Comment"># To run:</span>
<span id="L8" class="LineNr"> 8 </span><span class="Comment">#   $ git clone <a href="https://github.com/akkartik/mu">https://github.com/akkartik/mu</a></span>
<span id="L9" class="LineNr"> 9 </span><span class="Comment">#   $ cd mu</span>
<span id="L10" class="LineNr">10 </span><span class="Comment">#   $ ./mu continuation5.mu</span>
<span id="L11" class="LineNr">11 </span><span class="Comment">#</span>
<span id="L12" class="LineNr">12 </span><span class="Comment"># Expected output:</span>
<span id="L13" class="LineNr">13 </span><span class="Comment">#   1</span>
<span id="L14" class="LineNr">14 </span><span class="Comment">#   3</span>
<span id="L15" class="LineNr">15 </span><span class="Comment">#   5</span>
<span id="L16" class="LineNr">16 </span>
<span id="L17" class="LineNr">17 </span><span class="muRecipe">def</span> <a href='continuation5.mu.html#L17'>main</a> [
<span id="L18" class="LineNr">18 </span>  <span class="Constant">local-scope</span>
<span id="L19" class="LineNr">19 </span>  l:&amp;:<a href='064list.mu.html#L6'>list</a>:num <span class="Special">&lt;-</span> copy<span class="Constant"> null</span>
<span id="L20" class="LineNr">20 </span>  l <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>, l
<span id="L21" class="LineNr">21 </span>  l <span class="Special">&lt;-</span> push<span class="Constant"> 2</span>, l
<span id="L22" class="LineNr">22 </span>  l <span class="Special">&lt;-</span> push<span class="Constant"> 1</span>, l
<span id="L23" class="LineNr">23 </span>  k:continuation, x:num, done?:bool <span class="Special">&lt;-</span> <span class="muControl">call-with-continuation-mark</span> <span class="Constant">100/mark</span>, <a href='continuation5.mu.html#L34'>create-yielder</a>, l
<span id="L24" class="LineNr">24 </span>  a:num <span class="Special">&lt;-</span> copy<span class="Constant"> 1</span>
<span id="L25" class="LineNr">25 </span>  <span class="Delimiter">{</span>
<span id="L26" class="LineNr">26 </span>    <span class="muControl">break-if</span> done?
<span id="L27" class="LineNr">27 </span>    $print x <span class="Constant">10/newline</span>
<span id="L28" class="LineNr">28 </span>    k, x:num, done?:bool <span class="Special">&lt;-</span> call k, a  <span class="Comment"># resume; x = a + next l value</span>
<span id="L29" class="LineNr">29 </span>    a <span class="Special">&lt;-</span> add a,<span class="Constant"> 1</span>
<span id="L30" class="LineNr">30 </span>   <span class="muControl"> loop</span>
<span id="L31" class="LineNr">31 </span>  <span class="Delimiter">}</span>
<span id="L32" class="LineNr">32 </span>]
<span id="L33" class="LineNr">33 </span>
<span id="L34" class="LineNr">34 </span><span class="muRecipe">def</span> <a href='continuation5.mu.html#L34'>create-yielder</a> l:&amp;:<a href='064list.mu.html#L6'>list</a>:num<span class="muRecipe"> -&gt; </span>n:num, done?:bool [
<span id="L35" class="LineNr">35 </span>  <span class="Constant">local-scope</span>
<span id="L36" class="LineNr">36 </span>  <span class="Constant">load-inputs</span>
<span id="L37" class="LineNr">37 </span>  a:num <span class="Special">&lt;-</span> copy<span class="Constant"> 0</span>
<span id="L38" class="LineNr">38 </span>  <span class="Delimiter">{</span>
<span id="L39" class="LineNr">39 </span>    done? <span class="Special">&lt;-</span> equal l,<span class="Constant"> null</span>
<span id="L40" class="LineNr">40 </span>    <span class="muControl">break-if</span> done?
<span id="L41" class="LineNr">41 </span>    n <span class="Special">&lt;-</span> first l
<span id="L42" class="LineNr">42 </span>    l <span class="Special">&lt;-</span> <a href='064list.mu.html#L24'>rest</a> l
<span id="L43" class="LineNr">43 </span>    n <span class="Special">&lt;-</span> add n, a
<span id="L44" class="LineNr">44 </span>    a <span class="Special">&lt;-</span> <span class="muControl">return-continuation-until-mark</span> <span class="Constant">100/mark</span>, n, done?  <span class="Comment"># pause/resume</span>
<span id="L45" class="LineNr">45 </span>   <span class="muControl"> loop</span>
<span id="L46" class="LineNr">46 </span>  <span class="Delimiter">}</span>
<span id="L47" class="LineNr">47 </span>  <span class="muControl">return-continuation-until-mark</span> <span class="Constant">100/mark</span>,<span class="Constant"> -1</span>, done?
<span id="L48" class="LineNr">48 </span>  assert<span class="Constant"> false</span>, <span class="Constant">[called too many times, ran out of continuations to return]</span>
<span id="L49" class="LineNr">49 </span>]
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