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dwm - dynamic window manager
----------------------------
dwm is an extremely fast, small, and dynamic window manager for X.


Requirements
------------
In order to build dwm you need the Xlib header files.


Installation
------------
Edit config.mk to match your local setup (dwm is installed into
the /usr/local namespace by default).

Afterwards enter the following command to build and install dwm (if
necessary as root):

    make clean install


Running dwm
-----------
Add the following line to your .xinitrc to start dwm using startx:

    exec dwm

In order to connect dwm to a specific display, make sure that
the DISPLAY environment variable is set correctly, e.g.:

    DISPLAY=foo.bar:1 exec dwm

(This will start dwm on display :1 of the host foo.bar.)

In order to display status info in the bar, you can do something
like this in your .xinitrc:

    while true
    do
        echo `date` `uptime | sed 's/.*://; s/,//g'`
        sleep 1
    done | dwm


Configuration
-------------
The configuration of dwm is done by creating a custom config.h
and (re)compiling the source code.
e>
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# example program: a single-request HTTP server
#   listen for connections from clients on a server socket
#   when a connection occurs, transfer it to a session socket
#   read from it using channels
#   write to it directly
#
# After running it, navigate to localhost:8080. Your browser should display
# "SUCCESS!" and the server will terminate after one connection.

def main [
  local-scope
  socket:num <- $open-server-socket 8080/port
  $print [Mu socket creation returned ], socket, 10/newline
  return-unless socket
  session:num <- $accept socket
  contents:&:source:char, sink:&:sink:char <- new-channel 30
  sink <- start-running receive-from-socket session, sink
  query:text <- drain contents
  $print [Done reading from socket.], 10/newline
  write-to-socket session, [HTTP/1.0 200 OK
Content-type: text/plain

SUCCESS!
]
  $print 10/newline, [Wrote to and closing socket...], 10/newline
  session <- $close-socket session
  socket <- $close-socket socket
]
>
                                                                                                                                                                                              
                                                                                   
                                                                                   









                                                                                                                                                                         
                                                                                                                                             





                                                                                                                                     
                                                                                   








                                                                                                                                                                         
                                                                                                                                  

                                           



                                     
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<a href='https://github.com/akkartik/mu/blob/master/059to_text.mu'>https://github.com/akkartik/mu/blob/master/059to_text.mu</a>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr"> 1 </span><span class="Comment"># A couple of variants of 'to-text' that we'll use implicitly in stashes (see</span>
<span id="L2" class="LineNr"> 2 </span><span class="Comment"># later layers).</span>
<span id="L3" class="LineNr"> 3 </span><span class="Comment">#</span>
<span id="L4" class="LineNr"> 4 </span><span class="Comment"># Mu code might specialize them to be smarter, but I don't anticipate any need</span>
<span id="L5" class="LineNr"> 5 </span><span class="Comment"># beyond specializing 'to-text' itself.</span>
<span id="L6" class="LineNr"> 6 </span>
<span id="L7" class="LineNr"> 7 </span><span class="Comment"># 'shorter' variant of to-text, when you want to enable some sort of trimming</span>
<span id="L8" class="LineNr"> 8 </span><span class="Comment"># define it to be identical to 'to-text' by default</span>
<span id="L9" class="LineNr"> 9 </span><span class="muRecipe">def</span> to-text-line x:_elem<span class="muRecipe"> -&gt; </span>y:text [
<span id="L10" class="LineNr">10 </span>  <span class="Constant">local-scope</span>
<span id="L11" class="LineNr">11 </span>  <span class="Constant">load-inputs</span>
<span id="L12" class="LineNr">12 </span>  y <span class="Special">&lt;-</span> to-text x
<span id="L13" class="LineNr">13 </span>]
<span id="L14" class="LineNr">14 </span>
<span id="L15" class="LineNr">15 </span><span class="Comment"># variant for arrays (since we can't pass them around otherwise)</span>
<span id="L16" class="LineNr">16 </span><span class="muRecipe">def</span> <a href='059to_text.mu.html#L16'>array-to-text-line</a> x:&amp;:@:_elem<span class="muRecipe"> -&gt; </span>y:text [
<span id="L17" class="LineNr">17 </span>  <span class="Constant">local-scope</span>
<span id="L18" class="LineNr">18 </span>  <span class="Constant">load-inputs</span>
<span id="L19" class="LineNr">19 </span>  y <span class="Special">&lt;-</span> to-text *x
<span id="L20" class="LineNr">20 </span>]
<span id="L21" class="LineNr">21 </span>
<span id="L22" class="LineNr">22 </span><span class="muScenario">scenario</span> to-text-line-early-warning-for-static-dispatch [
<span id="L23" class="LineNr">23 </span>  x:text <span class="Special">&lt;-</span> to-text-line<span class="Constant"> 34</span>
<span id="L24" class="LineNr">24 </span>  <span class="Comment"># just ensure there were no errors</span>
<span id="L25" class="LineNr">25 </span>]
<span id="L26" class="LineNr">26 </span>
<span id="L27" class="LineNr">27 </span><span class="muScenario">scenario</span> array-to-text-line-early-warning-for-static-dispatch [
<span id="L28" class="LineNr">28 </span>  n:&amp;:@:num <span class="Special">&lt;-</span> new <span class="Constant">number:type</span>,<span class="Constant"> 3</span>
<span id="L29" class="LineNr">29 </span>  x:text <span class="Special">&lt;-</span> <a href='059to_text.mu.html#L16'>array-to-text-line</a> n
<span id="L30" class="LineNr">30 </span>  <span class="Comment"># just ensure there were no errors</span>
<span id="L31" class="LineNr">31 </span>]
<span id="L32" class="LineNr">32 </span>
<span id="L33" class="LineNr">33 </span><span class="Comment"># finally, a specialization for single characters</span>
<span id="L34" class="LineNr">34 </span><span class="muRecipe">def</span> to-text c:char<span class="muRecipe"> -&gt; </span>y:text [
<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>  y <span class="Special">&lt;-</span> new <span class="Constant">character:type</span>, <span class="Constant">1/capacity</span>
<span id="L38" class="LineNr">38 </span>  *y <span class="Special">&lt;-</span> put-index *y,<span class="Constant"> 0</span>, c
<span id="L39" class="LineNr">39 </span>]
<span id="L40" class="LineNr">40 </span>
<span id="L41" class="LineNr">41 </span><span class="muScenario">scenario</span> character-to-text [
<span id="L42" class="LineNr">42 </span>  1:char <span class="Special">&lt;-</span> copy <span class="Constant">111/o</span>
<span id="L43" class="LineNr">43 </span>  2:text <span class="Special">&lt;-</span> to-text 1:char
<span id="L44" class="LineNr">44 </span>  3:@:char <span class="Special">&lt;-</span> copy *2:text
<span id="L45" class="LineNr">45 </span>  memory-should-contain [
<span id="L46" class="LineNr">46 </span>    3:array:character <span class="Special">&lt;-</span> <span class="Constant">[o]</span>
<span id="L47" class="LineNr">47 </span>  ]
<span id="L48" class="LineNr">48 </span>]
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